BRADFORD WHITE RTGR199N1 Wall Mounted Modulating Gas Condensing Water Heater Instruction Manual

June 16, 2024
Bradford White

BRADFORD-white-logo

BRADFORD WHITE RTGR199N1 Wall Mounted Modulating Gas Condensing Water

Heater

BRADFORD-WHITE-RTGR199N1-Wall-Mounted-Modulating-Gas-Condensing-Water-
Heater-image

Product Information

Specifications

  • Model: RTGR199N1 / RTGR199X1
  • BTU/hr: 199,000

Product Usage Instructions

Section 1: Product Accessories

1.1 Introduction
This section provides an introduction to the product accessories.

1.2 Included with the Unit
This section lists the accessories that are included with the unit.

Section 2: Product Characteristics

2.1 Model Nomenclature
This section explains the model nomenclature of the product.

2.2 Specifications
This section provides detailed specifications of the product.

2.3 Dimensions
This section provides the dimensions of the product.

2.4 Names of Components
This section lists and describes the names of the components of the product.

Section 3: Safety Regulations

3.1 Safety Symbols
This section explains the safety symbols used in the manual.

3.2 Safety Precautions and Proper Use
This section provides important safety precautions and instructions for proper use of the product.

Section 4: Installation

NOTE: For Cascading Installations, please refer to the cascading instructions, available online.

Section 5: Control Display and Operation

5.1 Control Dial and Buttons
This section explains the control dial and buttons of the product.

5.2 LCD Overview
This section provides an overview of the LCD display of the product.

5.3 Operating Mode
This section explains the operating mode of the product.

5.4 Status Display Mode
This section explains the status display mode of the product.

5.5 DHW Set Point Change Mode
This section explains how to change the DHW set point of the
product.

5.6 Installer Mode
This section explains the installer mode of the product.

5.7 Error Mode
This section explains the error mode of the product.

Section 6: Error Codes

6.1 Error Codes
This section provides a list of error codes and their meanings.

Section 7: Troubleshooting

7.1 Diagnostics
This section provides troubleshooting diagnostics for the product.

Section 8: Maintenance

8.1 General Maintenance
This section explains the general maintenance procedures for the product.

Section 9: Installation Check

9.1 Quick View
This section provides a quick view of the installation check.

9.2 Final check lists
This section provides final checklists for the installation.

Section 10: Infiniti Series Warranty

This section provides warranty information for the Infiniti Series.

FAQs

  • Q: What should I do if I smell gas?
    • A: If you smell gas, follow the safety precautions outlined in the manual and contact a professional service technician immediately.
  • Q: Can I store flammable vapors near the water heater?
    • A: No, it is not safe to store or use gasoline or other flammable vapors and liquids near the water heater or any other appliance.
  • Q: Who should perform the installation and service?
    • A: The installation and service must be performed by a professional service technician, qualified in water heater installation and maintenance, or by a qualified installer, service agency, or gas supplier.

Installation and Operation Instructions

238-54628-00A Rev 07/22

Installation and Operation Instructions for
Infiniti® GR Series
Wall-Mounted, Modulating Gas Condensing Water Heater
Model RTGR199N1 / RTGR199X1
(199,000 BTU/hr)
· Natural Gas (NG) – Factory Configuration · Propane (LP) – Factory Configuration

FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in water heater installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty.

WARNING If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS · Do not try to light any appliance. · Do not touch any electrical switch; do not
use any phone in your building. · Immediately call your gas supplier from a
nearby phone. Follow the gas supplier’s instructions. · If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency, or gas supplier.

AVERTISSEMENT
Assurez-vous de bien suivres les instructions données dans cette notice pour réduire au minimum le risque d’incendie ou d’explosion ou pour éviter tout dommage matériel, toute blessure ou la mort.
Ne pas entreposer ni utiliser d’essence ou ni d’autres vapeurs ou liquides inflammables dans le à proximité de cet appareil ou de tout autre appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
· Ne pas tenter d’allumer d’appareils. · Ne touchez à aucun interrupteur. Ne pas vous servir
des téléphones dans le bâtiment où vous vous trovez. · Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions du fournisseur. · Si vous ne pouvez rejoindre le fournisseur de gaz, appelez le sservice des incendies.
L’installation et l’entretien doivent être assurés par un installateur ou un service d’entretien qualifié ou par le fournisseur de gaz.

TABLE OF CONTENTS

SECTION 1 Product Accessories
1.1 Introduction…………………………………………………..3 1.2 Included with the Unit …………………………………….3
SECTION 2 Product Characteristics
2.1 Model Nomenclature ……………………………………..4 2.2 Specifications ……………………………………………….5 2.3 Dimensions…………………………………………………..6 2.4 Names of Components…………………………………..7
SECTION 3 Safety Regulations
3.1 Safety Symbols …………………………………………….8 3.2 Safety Precautions and Proper Use …………………9
SECTION 4 Installation NOTE: For Cascading Installations, please refer to the cascading instructions, available online.
4.1 Location and Clearances………………………………12 4.2 Wall Mount Bracket ……………………………………..13 4.2.1 The installation height and location ……………….13 4.2.2 Hang the Water Heater…………………………………13 4.3 Combustion Air ……………………………………………14 4.3.1 Combustion Air from Room …………………………..14 4.3.2 Ducted Combustion Air…………………………………14 4.4 Venting (Exhaust) ………………………………………..15 4.4.1 Venting (Exhaust) ………………………………………..16 4.5 General Location Guideline…………………………..18 4.6 Locations for Vent Pipe Terminal …………………..19 4.6.1 Direct Venting Clearances ……………………………19 4.6.2 Non-Direct Venting Clearances …………………….20 4.6.3 Venting Requirements in the
Commonwealth of Massachusetts …………………21 4.6.4 Common Vent Test ………………………………………22 4.7 Air Supply and Vent Connections…………………..23 4.7.1 Vent / Air Pipe Lengths …………………………………23 4.7.2 Direct Venting ……………………………………………..23 4.7.3 Single Venting ……………………………………………24 4.8 Vent / Air Pipe Termination ……………………………24 4.9 Gas Supply and Piping…………………………………27 4.10 Gas Supply Pressure …………………………………..30 4.11 Gas Setup and Adjustment……………………………30 4.12 Gas High Altitude Setting …………………………….31

4.13 Plumbing Guidelines. ……………………………….. 32 4.14 Re-Circulation Setting ……………………………….. 33 4.15 Setting the Control Panel ……………………………….. 37 4.16 Disposal of Condensate ……………………………….39 4.17 Pressure Relief Valve …………………………………..40 4.18 Electrical Wiring Connections………………………..40 4.19 DIP Switches ……………………………………………..41 4.20 Wiring Diagram …………………………………………..42 4.21 Ladder Diagram ………………………………………….43 4.22 Electrical Connections …………………………………44
SECTION 5 Control Display and Operation
5.1 Control Dial and Buttons ………………………………46 5.2 LCD Overview ……………………………………………47 5.3 Operating Mode…………………………………………..48 5.4 Status Display Mode ……………………………………49 5.5 DHW Set Point Change Mode ………………………50 5.6 Installer Mode …………………………………………….51 5.7 Error Mode …………………………………………………52
SECTION 6 Error Codes
6.1 Error Codes ……………………………………………….53
SECTION 7 Troubleshooting
7.1 Diagnostics …………………………………………………57
SECTION 8 Maintenance
8.1 General Maintenance …………………………………..58
SECTION 9 Installation Check
9.1 Quick View …………………………………………………59 9.2 Final check lists …………………………………………..64
SECTION 10 Infiniti Series Warranty

Infiniti® GR Tankless Water Heater SECTION

Product Accessories

Page 3

1.1 Introduction
This manual provides information necessary for the installation, operation, and maintenance o the GR Series. All application and installation procedures must be read and reviewed completely beore proceeding with the installation. Consult the manufacturer, or your local factory representative, with any problems or questions regarding this equipment. Experience has shown that most operating problems are caused by improper installation.
All installations must be made in accordance with 1) American National Standard Z223.1/NFPA54-Latest
1.2 Included with the Unit

Edition “National Fuel Gas Code” or 2) CSA B149.1 “Natural Gas and Propane Installation Code” and with the requirement of the local utility or other authorities having jurisdiction. Such applicable requirements take precedence over the general instructions contained herein.
All electrical wiring is to be done in accordance with the local codes, or in the absence of local codes, with: 1) The National Electrical Code ANSI/NFPA No. 70-latest Edition, or 2) CSA STD. C22.1 “Canadian Electrical Code – Part 1”. This appliance must be electrically grounded in accordance with these codes.

Items

Descriptions

Qty

Tankless Water Heater

1

Installation Instructions and User’s Manual

Wall Mount Bracket

Bolts w/Anchors

4

Vent terminal cap 2″

Parts Kit

1 1 4 2 1

Page 4

Bradford White Corporation

SECTION 2

Product Characteristics

2.1 Model Nomenclature
The Model Nomenclature is shown on your Rating Plate and consists of a series of letters and numbers that further identifies the characteristics of your GR Series Water Heater.

RTG
Model BWC Ta n k l e s s

R
Pump Option S – No Pump R – With Recirculation Pump

199
Size 199 mBH

N
Fuel N – Natural X – Propane

MODEL NUMBER

WARNING Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that may have been under water.

Infiniti® GR Tankless Water Heater

Page 5

2.2 Specifications

Model Name

MAX

Gas Input Rate

MIN

High Elevation

35°F Rise

Hot Water Capacity

45°F Rise

77°F Rise

Installation

Flue System

Max Vent Run

Orifice Size

NG (Gas / Needle) LP (Gas / Needle)

NG Gas Supply Pressure
LP

Gas Type

Manifold Pressure

Low Fire

2 VENT 3 VENT

High Fire

2 VENT 3 VENT

Power Supply

Main Supply Max Current

Standby

Power Consumption

Operation

Anti Freeze

Ignition System

Burner System

Gas Valve System

Minimum Flow Activation Flow

Internal Pipe Material

Dimensions

Weight

Water Holding Capacity

Control Panel / Circuit Board

MAX Water Pressure
MIN

Materials

Casing Heat Exchanger

Safety Devices

RTGR199N1 / RTGR199X1

199,000 Btu/h

18,000 Btu/h

180,000 Btu/h

11.1 Gal/min (42 L/min)

8.7 Gal/min (32.9 L/min)

5.1 Gal/min (19.3 (L/min)

Indoor / Outdoor Wall Hung (with outdoor vent cap)

Sealed Combustion Direct Vent, Single Vent, Outdoor

2″ (60ft) / 3″ (150ft) Schedule 40 PVC, CPVC, PP

0.330″ (8.4mm) / 0.342″ (8.7mm)

0.259″ (6.6mm) / 0.263″ (6.7mm)

3.5″ WC to 10.5″ WC

8.0″ WC to 14″ WC

NG

LP

0.1 WC 0.1 WC -0.20 WC -0.20 WC

120V 60Hz Less than 2A

-0.05 WC -0.05 WC -0.30 WC -0.30 WC

2.7W

188W

117W

Direct Electronic Ignition / Automatic Flame Sensing

Premixed Metal Fiber Burner

Air Ratio Valve

0.5 GPM

STS 304, Stainless Steel with PPS

W 17.3 ­ H 27.6 ­ D 14.9

85 lbs

Under 2 Gallons

PR-952C / NGTH-9600C

150 psi

15 psi

Cold Rolled Carbon Steel

Heat Exchanger : SS 304

Flame Sensor, Overheat Cut Off Switch, Gas Leak Detector, Water Leak Detector, Exhaust Temperature Sensor, Water Temperature Sensor

· Temperature Operating ambient Temperature Range : Range: 14°F to 140°F (-10 to 60°C). Operating Relative Humidity up to: 90% at 104°F (40°C). Shipping & Storage Temperature Range of : -4°F to 176°F (-20 to 80°C).

Page 6
2.3 Dimensions – [RTGR199N1 / RTGR199X1 ]

5.8″ [148mm]

6.9″ [175mm]

4.6″ [117mm]

Bradford White Corporation

A

B

14.9″ [378mm]

4.0″ [101mm]

27.6″ [700mm]

5.7″ [146mm]

2.5″ [64mm]

H

IF C
G DE

8.9″ [226mm]

2.4″ [62mm] 3.2″ [81mm] 6.4″ [163mm]

Description

A

Exhaust

B

Air Intake

C

Hot Water

D

Condensate

E

Recirculation Return Connection

F

Cold Water Connection

G

Gas

H

Cold Water Filter

I

Recirculation Return Filter

17.3″ [440mm] Size 2″ PVC 2″ PVC 3/4″ NPT 1/2″ NPT 3/4″ NPT 3/4″ NPT 3/4″ NPT

Infiniti® GR Tankless Water Heater

2.4 Names of Components [RTGR199N1 / RTGR199X1 ]

1

27

26 2

3

25

4

24

5

23

6

22

7

21

8

20

19
9 18
10
17 11

12

13

Name of Component

1 Vent Pipe Collar

2 Combustion Air Intake Assembly

3 Ignition Transformer

4 Igniter

5 Flame Detection Sensor

6 High Limit Switch

7 Sight Glass

8 Terminal Port

9 Circulation Water Pump

10 Mixing Valve

11 Water Leak Detector

12 Domestic Hot Water (DHW) Outlet

13 Condensate Trap Cleanout

14 Recirculation Return Water Connector

14 15 16

Name of Component

15 Cold Water Inlet

16 Gas Inlet

17 Main Controller

18 Water Adjustment Valve

19 Control Panel

20 Manual Power Switch

21 Secondary Heat Exchanger

22 Primary Heat Exchanger

23 Gas Valve

24 Air Gas Mixture (AGM) Actuator

25 Blower

26 Air Intake Filter

27 Air Intake Collar

Page 7

Page 8
SECTION 3

Safety Regulations

3.1 Safety Symbols

Bradford White Corporation

WARNING
To avoid product damage, personal injury, or even possible death, carefully read, understand, and follow all the instructions in the Installation and Operation manual before installation, operation and service the Water Heater.
Every circumstance that may involve a potential hazard cannot be anticipated. Therefore, all possible incidents are not included in our warnings. Proper installation, operation, and service are your responsibility. You must make sure that the operation and settings of the Water Heater are safe for you and for others.
This manual provides Safety Symbols. When the user fails to adhere to the following requirement, it may cause death, serious injury, and substantial property damage.
For safety symbols, DANGER’,WARNING’, CAUTION’ are indicated and the definitions for these terms are as follow:
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word is limited to the most extreme situations.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It is also used to alert against unsafe practices and hazards involving only property damage.
WARNING Cancer and Reproductive Harm. www.P65WARNINGS.CA.GOV. as required by the state of California Proposition 65.

WARNING
FOR YOUR SAFETY READ BEFORE OPERATING
If you do not follow these instructions exactly, a fire or explosion could result causing property damage, personal injury or loss of life.
A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
· Do not try to light any appliance. · Do not touch any electric switch; do not use any
phone in your building. · Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s instructions. · If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.
This appliance must be installed in accordance with local codes if any; if not, follow ANSI Z224.1/NFPA 54 or CAN/CSA B149.1, Natural Gas and Propane Installation Code, as applicable.
This appliance is certified for use at altitudes up to 2,000 ft (609m) without adjusting Altitude settings, accordance to the latest CSA/CGA 2.17-M91 GasFired Appliances for Use at High Altitudes. Refer to Section 4.12 for High Altitude Settings, if installing above 2,000 ft (609m) up to a maximum of 10,000 ft (3,044m).

Infiniti® GR Tankless Water Heater

Page 9

DANGER
Vapors from flammable liquids will explode and catch on fire. These will cause death or severe burns. Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the appliance.
Keep flammable products
Far away from water heater In approved containers Tightly closed Out of children’s reach
Vapors
Cannot be seen are heavier than air spread on the floor Can spread from other rooms to the main burner by air currents
Do not install the appliance where flammable products will be stored. Read and follow water heater warnings and instructions thoroughly. If owner’s manual is missing, contact the retailer or manufacturer.
The water heater must be installed by a qualified plumber, a licensed gas fitter, and/or a professional service technician. Improper installation and/or operation will cause a potentially hazardous situation, such as serious injury or death. Also, it will void the warranty.
· The National Fuel Gas Code NFPA 54 / ANSI Z224.1 · National Electric Code ANSI/NEPA 70 · All applicable local, state, national and provincial
codes, regulations and laws.
Proper care is your responsibility. Carefully read and understand the Operating Information in this manual before operating the water heater.
Be aware of the location of the gas shut-off valve and operation method. Close the gas shut-off valve immediately if the appliance is subjected to fire, overheating, flood, physical damage, or any other

damaging condition that might affect the operation of the unit. Water Heater must be checked by a qualified technician before resuming operation.
DO NOT use this Water Heater if any part has been under water. Immediately call a qualified technician for inspecting the Water Heater and replacing any part of the control system and gas control which have been under water.
DO NOT power up the unit until the gas and water supply valves are fully opened. Make sure that the fresh air intake port and exhaust gas port are opened and functional.
DO NOT attempt to install, repair, or service this Water Heater by yourself. Do not change any part of the Water heater. Contact a qualified technician if the Water Heater needs repair or maintenance. Ask your gas supplier for a list of qualified service providers.
DO NOT use spray paint, hair spray, or any other flammable spray near Water Heater or near the exterior fresh air inlet port. DO NOT place any items in or around the exterior exhaust gas outlet port and/or fresh air inlet port. These could restrict or block the flow in or out of the vent system.
Caution: While repairing control, all wires are labeled. You must connect the wires in accordance with the instruction. Wiring errors can cause improper and dangerous operation.
Verify proper operation after servicing operation.
This consists of the gas ignition system components which are protected from water (dripping, spraying, rain, etc.) during operation and service (circulator replacement, condensate trap, control replacement, etc.).
After installing the heater, safety device must be tested.

Page 10
3.2 Safety Precautions and Proper Use

Bradford White Corporation

Before Operation
1. Check the Gas Type (NG/LP) When moving the unit or setting it up for the first time, confirm that the supplied gas type (natural gas or propane) matches the configuration of the water heater. The gas type of the water heater is indicated on the rating plate found on its side.
2. Check the Power (120V 60Hz) Check that the appliance is connected properly.

When in Operation

CAUTION

1. Caution for Ventilation Ensure that there is unobstructed and sufficient inflow and outflow combustion air for the water heater. If the ventilation is improper, combustion quality may deteriorate inside the appliance and cause shortened life of the appliance.

3. Check the Cold Water Inlet valve. Please keep the appliance water inlet valve open at all times. The appliance will not ignite when insufficient water or no water is in the heating pipes.

4. Check the Gas Valve Check that the manual gas shut-off valve that supplies the water heater is opened.

open
5. Check for a gas leak at the gas connection with soapy water.
6. Check the area around the appliance and remove any combustible or flammable material per the installation manual. Remove laundry or any other items that are on or near the water heater or exhaust vent.
7. Check Combustion Air. Check the combustion air vent system and ensure it is installed per the installation manual.

Infiniti® GR Tankless Water Heater

Page 11

WARNING
Do not use the appliance for any other purpose than for domestic water heating. Do not store combustibles or flammable material such as gasoline near the appliance. Do not store other items on or near this water heater. Do not store combustible (flammable) materials such as papers. Do not hang clothes on the exhaust stack. This may start a fire.
CAUTION
Scalding Risk: The use of an anti-scald mixing valve at the hot water outlet (water heater location) can reduce potential for scalding. Contact Manufacturer for recommended models. Check with local codes.


Gas leakage test. Gas supply line must be inspected periodically.
Do not shut off the Water Heater. When you leave home for a extended periods, do not shut off the water heater. The water heater has a freeze protection function. The ceramic heater is installed inside of the heater’s internal pipe to protect the heater from freezing.
Do not wipe the appliance or control panel with wet cloth, or internal parts may fail due to the exposure to moisture.
Do not disassemble the water heater. If repair is required, call your local qualified technician.

DANGER
Carbon Monoxide Poisoning.
Exhaust gas must be vented to the outside using approved vent material. See section 4.4 Exhaust venting for proper approved vent materials and practices. Vent and combustion air piping must be sealed gas-tight to prevent flue gas spillage, carbon monoxide emissions resulting in personal injury or death.
DANGER
If you detect a gas leak, shut off the gas and ventilate the room(open windows, doors). Tighten appropriate fittings to stop leak. Turn the gas on and check again with a gas leak detection solution. Never test for gas leaks using a match or flame.

Page 12
SECTION

Installation

4.1 Location and Clearances
The water heater must be mounted to a suitable wall by a qualified heating contractor per the provided instructions. The wall may be of concrete or wood. Suitable fasteners for concrete or wood must be used. Failure to wall mount this water heater using correct fasteners will affect the performance and life expectancy of the water heater and will void the warranty.
NOTE: For Cascading Installations, please refer to the cascading kit instructions, available online.

4 in 10 cm

10 in 25 cm

4 in 10 cm

4 10

in cm

10 in 25 cm

Bradford White Corporation
WARNING
Installations must comply with · All the local, state, provincial, and national codes,
laws, regulations and ordinances. · National Fuel Gas Code, ANSI Z224.1 ­ The latest
version. · National Electrical Code. · A National Standard of Canada CAN/CSA-B149.1-05
Check before placing the Water Heater · Always check the connected components which are
near to the heater. The components are below.
Water piping position / Venting adapter / Gas supply piping / Electrical power / Condensate drain hose. · Confirm the area around Water Heater. Remove any
combustible materials, gasoline and other flammable liquids. Failure to keep the Water Heater area clear and free of combustible materials, gasoline and other flammable liquids and vapors can result in severe personal injury, death or substantial property damage. · The Water Heater which has gas control system components must be protected from any possible danger during operation and service. · If new Water Heater replaces the existing appliance, check and correct system problems,
Provide clearances as outlined in Table 1
· As for vent connector and hot water pipe from combustible construction, please consult with a qualified technician.
· If the heater was installed in a narrow space or corner, please ensure that there is sufficient space for service and maintenance access. For regular maintenance, there should not be any problem to approach gas and water line.
The water heater must be installed on a wall that can bear its weight.

Minimum clearances to Combustibles.

For installation from Non-Combustibles and Combustibles

Suggested Service
Clearance

TOP

10 in (25 cm) 18 in (46 cm)

BACK

1 in (2.5 cm)

1 in (2.5 cm)

FRONT

4 in (10 cm) 40 in (101 cm)

SIDE

4 in (10 cm)

8 in (20 cm)

BOTTOM

10 in (25 cm) 24 in (61 cm)

Table 1. Minimum Clearances to Combustibles and for Service.

WARNING
CLEARANCES FOR SERVICE ACCESS · The water heater must be installed on a wall that
can bear its weight.
· Adequate service clearance must be considered.
· The Water heater can be installed on any suitable internal wall (sound proofing may be required when installing onto a stud partition wall).

Infiniti® GR Tankless Water Heater

4.2 Wall Mount Bracket

4.2.1 The installation height and location
The installation height depends on your installation scenario. With all clearances considered, and given adequate positioning for air supply and venting, you will need to determine the best position to mount the Wall Mount Bracket. The wall must be concrete, wood, or plywood over studs, and must be strong enough to hold the water heater!

Anchors (4)

· Start by familiarizing yourself to how the included Wall Mount Bracket hooks underneath

Wall Mount

Bolts (4)

Bracket

the two Hangers that are attached to the back of

the water heater. The `hooks’ of the Wall Mount Bracket

will be 3″ from the Top of the water heater once the water

heater is hung.

· Position the Wall Mount Bracket at the desired location, ensuring that it is level. Drill 4 holes with a 1/2″ drill bit, into the wall through the Bracket.
· If mounting to a concrete wall, then use the concrete anchors. If onto wood or 5/8″ (16 mm) plywood, then use the wood screws. Do not hang the water heater onto Unsupported Sheetrock unless it is possible to fasten directly into the structural studs. If the included anchors do not suit your installation, you must use `Field Supplied’ anchors that are appropriate for the wall’s construction.

Hangers (2)
(fastened to the back of unit)

Page 13 3″ to Top
of Unit Concrete, Wood, or 5/8″ Plywood
Wall Mount Bracket

4.2.2 Hang the Water Heater
· Lift the water heater up, align the Hangers on the back of the water heater with the hooks on the Wall Mount Bracket, and hang the water heater onto the Wall Mount Bracket. Do a visual inspection to make sure that the water heater is hanging properly onto the hooks of the Wall Mount Bracket.
· Fasten the bottom of the water heater to the wall using 2 suitable wall anchors (field supplied).

Page 14

Bradford White Corporation

SECTION 4. Installation (continued

4.3 Combustion Air
GR Series water heaters must have provisions for combustion and ventilation air in accordance with the applicable requirements for Combustion Air Supply and Ventilation in the National Fuel Gas Code, ANSI Z223 1; or in Canada, the Natural Gas and Propane Installation Code, CSA B149.1. All applicable provisions of local building codes must also be adhered to.
An GR Series unit can take combustion air from the space in which it is installed, or the combustion air can be ducted directly to the unit. Ventilation air must be provided in either case.
4.3.1 Combustion Air from Room
In the United States, the most common requirements specify that the space shall communicate with the outdoors in accordance with method 1 or 2, which follow. Where ducts are used, they shall be of the same cross-sectional area as the free area of the openings to which they connect.
Method 1: Two permanent openings, one commencing within 12″ (300mm) of the top and one commencing within 12″ (300mm) of the bottom, of the enclosure shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces that freely communicate with the outdoors. When directly communicating with the outdoors, or when communicating to the outdoors through vertical ducts, each opening shall have a minimum free area of 1 square inch per 4000 Btu/hr (550 square mm/kW) of total input rating of all equipment in the enclosure. When communicating to the outdoors through horizontal ducts, each opening shall have a minimum free area of not less than 1 square inch per 2000 Btu/ hr (1100 square mm/kW) of total input rating of all equipment in the enclosure.
Method 2: One permanent opening, commencing within 12″ (300mm) of the top of the enclosure, shall be permitted. The opening shall directly communicate with the outdoors or shall communicate through a

vertical or horizontal duct to the outdoors or spaces that directly communicate with the outdoors and shall have a minimum free area of 1 square inch per 3000 Btu/hr (734 square mm/kW) of the total input rating of all equipment located in the enclosure. This opening must not be less than the sum of the areas of all vent connectors in the confined space.
Other methods of introducing combustion and ventilation air are acceptable, providing they conform to the requirements in the applicable codes listed above.
In Canada, consult local building and safety codes or, in absence of such requirements, follow CAN/CGA B149.
4.3.2 Ducted Combustion Air
The combustion air can be taken through the wall, or through the roof. When taken from the wall, it must be taken from out-of-doors by means of the horizontal wall terminal. When taken from the roof, a fieldsupplied rain cap or an elbow arrangement must be used to prevent entry of rain water.
As allowed by local codes use ABS, PVC, CPVC, Polypropylene for the Combustion air intake. Route the intake to the water heater as directly as possible. Seal all joints. Provide adequate hangers. The unit must not support the weight of the combustion air intake pipe. Maximum linear pipe length allowed is shown in Table 6.
Subtract 5 allowable linear ft. (1.5m) for every elbow used.
The connection for the intake air pipe is at the top of the unit.
In addition to air needed for combustion, air shall also be supplied for ventilation, including air required for comfort and proper working conditions for personnel.

COMBUSTION AIR INSTALLATION STANDARDS

MATERIAL ABS

UNITED STATES ANSI/ASTM D1527

CANADA

PVC, sch 40 Polypropylene CPVC, sch 40 Polypropylene

ANSI/ASTM D1785/1738 or D2665
ANSI/ASTM F441 UL1738, ULC S636.

Air pipe material must be chosen CPVC, sch 40, ANSI/ASTM, Polypropylene based upon the intended application of the water heater.

Single wall galv. steel

26 gauge

Table 2. Required Combustion Air Pipe Material.

Infiniti® GR Tankless Water Heater

Page 15

NOTICE
The instructions for the installation of the venting system shall specify that the horizontal portions of the venting system shall be supported to prevent sagging; the methods of and intervals for support shall be specified. These instructions shall also specify that the venting system:
Category IV water heaters must be installed so that horizontal sections have a slope of at least ¼ inch per foot (21mm/m) to the appliance to prevent accumulation of condensate; and For Category IV water heaters, where necessary, have means provided for drainage of condensate.
CAUTION
The GR Series comes from the factory set to use either Natural gas or Liquid Propane. Confirm the installation gas type matches the gas type on the rating plate.
Adequate drainage · The appliance should be installed not to damage
the adjacent area. If such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. The pan must not block combustion air flow.
Connecting the Water Supply · To conserve water and energy, insulate all water
piping–especially the hot and recirculation water lines. Never cover the drain or pressure relief valve. Having a backflow preventer in the cold water supply line means that it prevent from thermal expansion backflow. Contact the water supplier or local plumbing inspector for information about how to control this situation. If overheating occurs or the gas supply fails to shut off, turn off the manual gas valve and check the installation.
This installation must conform with below section · “Air for Combustion and Ventilation” of the
National Fuel Gas Code, ANSI Z224.1/NFPA 54, or Sections 8.2, 8.3 or 8.4 of Natural Gas and Propane Installation Code, CAN/CSA B149.1, or applicable provisions of the local building codes.

AVIS
Les instructions d’installation du système d’évacuation doivent préciser que les sections horizontales doivent être supportées pour prévenir le fléchissement. Les méthodes et les intervalles de support doivent être spécifiés. Les instructions doivent aussi indiquer les renseignements suivants:
les chaudières de catégories IV doivent présenter des tronçons horizontaux dont la pente montante est d’au moins ¼ po par pied (21 mm/m) entre la chaudière et l’évent; les chaudières de catégories IV doivent être installées de façon à empêcher l’accumulation de condensat;
et si nécessaire, les chaudières de catégories II et IV doivent être pourvues de dispositifs d’évacuation du condensat.
4.4 Venting (Exhaust
The flue temperature of the water heater changes dramatically with changes in operating water temperature. If the water heater is installed in an application where the set point is greater than 140°F(60°C, ambient temperature is elevated, and/or installed in a closet/alcove, CPVC, polypropylene, or stainless steel material is required. If the system temperatures are unknown at the time of installation, stainless, polypropylene or CPVC material is recommended.
The GR Series is a Category IV appliance and may be installed with PVC, CPVC or polypropylene that complies with ULC-S636, ANSI/ASTM D1785 F441 (see Table 3) or a PVC or stainless steel venting system that complies with UL 1738.
INSTALLATIONS IN CANADA require the use of venting material certified to ULCS636. All Gas vents connected to the water heater, plastic, stainless steel or otherwise must be certified to this ULC standard. Appropriate selection of vent material is very important for proper performance and safe operation of the water heater.
The flue temperature of the water heater changes dramatically with changes in operating water temperature. Therefore, it is necessary to assess the application of the water heater to determine the required certified vent class. If the water heater is installed in an application where the

Page 16

Bradford White Corporation

outlet water temperature exceeds 145°F, and/ or installed in a closet, class IIB or higher vent material is required. If the system temperatures are unknown at the time of installation, class IIB or higher venting material is recommended.
IN CANADA all venting used must meet the following requirements:
1. ULC-S636 certified and marked
2. The first 3 feet of venting must be accessible for visual inspection.
3. All components used in the vent system must be from a certified manufacturer.
4 . Vent system components must not be mixed with alternate manufacturers certified components and/or unlisted components.
5 . The venting must be installed according to the vent manufacturers installation instructions.
The unit’s vent can terminate through the roof, or through an outside wall.
Vent pipe must pitch upward, toward the vent terminal, not less than 1/4″ per foot, so that condensate will run back to the water heater to drain. Route vent pipe to the heater as directly as possible. Seal all joints and provide adequate hangers as required in the venting system manufacturer’s Installation Instructions. Horizontal portions of the venting system must be supported to prevent sagging and may not have any low sections that could trap condensate. The unit must not support the weight of the vent pipe.

NOTE: For Cascading Installations, please refer to the cascading kit instructions, available online.
WARNING Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel® (polyphenolsulfone) in venting systems shall be prohibited.
WARNING Failure to use the appropriate vent material, installation techniques, glues/sealants could lead to vent failure causing property damage, personal injury or death.
WARNING All venting must be installed according to this manual and any other applicable local codes, including but not limited to, ANSI Z224.1/NFPA 54, CSA B149.1, CSAB149.2 and ULC-S636. Failure to follow this manual and applicable codes may lead to property damage, severe injury, or death.
NOTICE
DO NOT COMMON VENT GR UNITS WITH ANY OTHER APPLIANCE. GR Series units are never permitted to share a vent with Category I appliances.
AVIS
NE PAS METTRE EN COMMUN LES UNITÉS GR AVEC UN AUTRE APPAREIL. GR Series unités ne sont jamais autorisés à partager un évent Catégorie I avec les appareils.

MATERIAL PVC, sch 40 CPVC, sch 40 Polypropylene
Stainless Steel AL29-4C

VENTING INSTALLATION STANDARDS

UNITED STATES

CANADA

ANSI/ASTM D1785

Venting must be ULC-S636 certified for use as

ANSI/ASTM F441

venting material. The venting material must be chosen

UL1738 or ULC-S636

based upon the intended application of the water heater.

Certified for Category IV and direct vent appliance venting

Table 3. Required Exhaust Vent Material. 4.4.1 Selecting Vent Pipe
1. Polypropylene vent The following polypropylene vent components are approved for use with this appliance:
Duravent PolyPro® SW (Rigid) (Certified to ULCS636) – 2PPS-xxx (2″) or 3PPS- xxx (3″) Centrotherm Innoflue® SW (Rigid) (Certified t UL1738 and ULCS636)

– ISxx02xx (2″) or ISxx03xx (3″) Z-Flex® Z-DENS SW (Rigid) (Certified to UL1738 an ULCS636)
– 2ZDxx (2″) or 3ZDxx (3″)
Stainless steel vent The following stainless steel vent components are approved for use with this appliance: Duravent FasNSeal® (Rigid) (Certified to UL1738 an ULCS636)

Infiniti® GR Tankless Water Heater

Page 17

– FSA-PVC3 (3″ PVC to FasNSeal Appliance Adapter)
– FSxxxxx03 (3″) Z-Flex® Z Vent
– 2SVSTTA023 (2″ x 3″ Appliance Adapter) – 2SVEPSCF030X (Straight Pipe) – 2SVEEWCF0390 (90° Elbow) – 2SVEEWCF0345 (45° Elbow)
3. Vent termination kit The following PVC vent terminations are approved for use with this appliance IPEX (Certified to ULCS636)
– 2 in FGV Concentric Kit #196105 – 3 in FGV Concentric Kit #196106 IPEX (Certified to UL1738) – 2 in FGV Concentric Kit #397105 – 3 in FGV Concentric Kit #397106 IPEX Low Profile Termination Kit (Certified to ULCS636) – 2 in Low Profile Vent Kit #196984 – 3 in Low Profile Vent Kit #196985 IPEX Low Profile Termination Kit (Certified to UL1738) – 2 in Low Profile Vent Kit #397984 – 3 in Low Profile Vent Kit #397985 Royal Plastcic limbing Solutions – 2″ GVS-65 Concentric Vent Termination Kit

52CVKGCS6502 – 3″ GVS-65 Concentric Vent Termination Kit

52CVKGCS6503 – GVS-65 Side Wall Vent Termination Kit

52SWVKGVS6502(2″)

The following polypropylene vent terminations are approved for use: Duravent PolyPro® Horizontal Concentric Termination Kit (Certified to ULCS636)
– 2 in x 4 in Concentric Vent Kit #2PPS-HKC – 3 in x 5 in Concentric Vent Kit

3PPS-HKC Centrotherm Innoflue® Low Profile Termination Kit (Certified to

UL1738 and ULCS636) – 2 in Vent Kit #ISLPT0202 – 3 in Vent Kit #ISLPT0303 Centrotherm Concentric Vent Kit (Certified to

UL1738 and ULCS636) – 2 in Vent Kit #ICWT242 – 3 in Vent Kit #ICWT352
Z-Flex® Z DENS Horizontal Termination (Certified to UL1738 and ULCS636)
– 2 in Vent Kit #2ZDHK2 – 3 in Vent Kit #2ZDHK3 Ecco Manufacturing (Certified to ULCS636) – 2″ PP Concentric Terminations Horizontal (Wall)
Terminations #190288 – 3″ PP Concentric Terminations Horizontal (Wall)
Terminations #190388
The following polypropylene vent components can be used as terminations: Duravent PolyPro® (Certified to ULCS636) )
– 2PPS-E90L or 3PPS-E90L (2″ or 3″ 90° Elbow) – 2PPS-E45L or 3PPS-E45L (2″ or 3″ 45° Elbow) – 2PPS-TL or 3PPS-TL (2″ or 3″ Tee) – 2PPS-BG or 3PPS-BG (2″ or 3″ Birdscreen) Centrotherm Innoflue® (Certified to UL1738 and ULCS636) – ISELL0287 or ISELL0387 (2″ or 3″ 87° Elbow) – ISELL0245 or ISELL0345 (2″ or 3″ 45° Elbow) – IST02 or IST03 (2″ or 3″ Tee) – IASPP02 or IASPP03 (2″ or 3″ Birdscreen) Z-Flex® Z-DENS (Certified to UL1738 and ULCS636) – 2ZDE_87 or 3ZDE_87 (2″ or 3″ 87° Elbow) – 2ZDE_45 or 3ZDE_45 (2″ or 3″ 45° Elbow) – 2ZDTT or 3ZDTT (2″ or 3″ Tee) – 2ZDES or 3ZDES (2″ or 3″ Birdscreen)
The following stainless steel (AL29-4C) vent components can be used as terminations: Duravent FasNSeal® (Certified to UL1738 and ULCS636)
– FSELB9003 (3″ 90° Elbow) – FSELB8803 (3″ 88° Elbow) – FSELB4503 (3″ 45° Elbow) – FST3 (3″ Tee) – FSBS3 (3″ Birdscreen) Z-Flex® Z Vent (Certified to UL1738 and ULCS636) – 2SVEEWCF0390 (90° Elbow) – 2SVEEWCF0345 (45° Elbow) – 2SVSTTF03 (3″ Tee)

Infiniti® GR Tankless Water Heater
4.5 General Location Guideline
1. Vent system installation must be in accordance with Local codes or, in the absence of local codes, the National Fuel Gas Code, ANSI Z224.1 /NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Code.
2. The Water Heater is designed to be installed as a Direct Vent (sealed combustion) type. Be careful to avoid entering foreign substances into the combustion air. Also, the flue gases must be vented directly to the outdoors (through wall or roof).
3. Do not install venting system components on the exterior of building except as specifically required by these instructions
– Vent terminals must be at least 1 foot from any door, window, or gravity inlet into the building.
– Maintain the correct clearance and orientation between the vent and air intake terminals. If the vent and air intake terminals must be at the same height, their center lines must be spaced apart 12 minimum.
– The bottom of the vent and air intake terminal must be at least 12 above the normal snow line. In no case should they be less than 12 above grade level.
– Do not install the vent terminal directly over windows or doors.
– Air intake terminal must not terminate in areas that might contain combustion air contaminates, such as near swimming pools.
– For sidewall venting, the minimum horizontal distance between any adjacent individual Module (Water Heater) vent terminations is twelve (12) inches. It is better to be far more than 12 inches for avoiding frost damage to building surfaces where vent terminations are placed.
– The minimum horizontal distance between any adjacent individual module (water heater) roof vent end piece is one (1) foot.

Page 18
WARNING Failure to vent this Water Heater in accordance with these instructions could cause a fire, resulting in severe property damage, personal injury or death. Do not interchange vent systems or materials unless it is specified. The use of thermal insulation covering vent pipe and fittings is prohibited. Do not apply an electric damper, draft hood or vent damper with this Water Heater. Do not locate vent termination where exposed to prevailing winds. Moisture and ice may fall on surface around vent termination. To prevent deterioration, surface must be in good repair (sealed, painted, etc.).

Page 19
4.6 Locations for Vent Pipe Terminator

Bradford White Corporation

4.6.1 Direct Venting Clearances

U.S. Installations (see note 1)

Canadian Installations (see note 2)

A= Clearance above grade, veranda, porch, deck, or balcony

12 inches (30 cm) See note 6

12 inches (30 cm) See note 6

B= Clearance to window or door that may be opened

Direct vent only: 12 inches (30cm); Other than Direct vent: 4 ft (1.2m) below or to side of opening; 1 ft (30cm) above opening

36 inches (91 cm) NT 80 only – 12 inches (30 cm)

C= Clearance to permanently closed window See note 4

See note 5

D= Vertical clearance to ventilated soffit located

above the terminal within a horizontal

See note 4

distance of 2 feet (61cm) from the center

line of the terminal

See note 5

E= Clearance to unventilated soffit

See note 4

See note 5

F= Clearance to outside corner

See note 4

See note 5

G= Clearance to inside corner

See note 4

See note 5

H= Clearance to each side of center line extended above meter/regulator assembly See note 4

3 feet (91 cm) within a height 15 feet above the meter/regulator assembly

I= Clearance to service regulator vent outlet See note 4

3 feet (91 cm)

J= Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance

Direct vent only: 12″ (30cm) 80-285; 36″ (91cm) 399-850. Other than Direct vent: 4 ft (1.2m) below 36 inches (91 cm) or to side of opening; 1 ft (30cm) above opening NT 80 only – 12 inches (30 cm)

K= Clearance to a mechanical air supply inlet 3 feet (91 cm) above if within 10 feet (3 m) horizontally

6 feet (1.83 m)

L= Clearance above paved sidewalk or paved Vent termination not allowed in this location

driveway located on public property

for category IV appliances.

7 ft (2.1 m) See note 5

M= Clearance under veranda, porch, deck, or balcony

See note 4

12 inches (30 cm) (see note 3)

Notes: 1. In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code. 2. In accordance with the current CAN/CSA-B149.1 Installation Codes. 3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor. 4. For clearances not specified in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the requirements of the gas supplier. 5. For clearances not specified in CAN/CSA-B149, clearance is in accordance with local installation codes and the requirements of the gas supplier. 6. IMPORTANT: Terminal must be placed such that it remains a minimum 12″ above expected snow line. Local codes may have more
specific requirements, and must be consulted.

Table 4. Direct Vent Clearances

Infiniti® GR Tankless Water Heater

Page 20

4.6.2 Non-Direct Venting (Single Pipe) Clearances

Description

US Non-Direct Canadian Non-Direct

A Clearance above grade, veranda, porch, deck, or balcony

12 in (30 cm)

12 in (30 cm)

B Clearance to window or door that may be opening

48 in (120 cm) below or to side of opening; 12 in (30 cm) above opening

36 in (91 cm)

C Clearance to permanently closed window

D

Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet from the center line of the terminal

E Clearance to unventilated soffit

F Clearance to outside corner

G Clearance to inside corner

H

Clearance to each side of center line extended above meter / regulator assembly

36 in (91 cm) within a height 15 ft (4.57 m) above the meter/ regulator assembly

I Clearance to service regulator vent outlet

36 in (91 cm)

48 in (120 cm) below

J

Clearance to non-mechanical air supply inlet to building or the com- or to side of opening;

bustion air inlet to any other appliance

12 in (30 cm) above

36 in (91 cm)

opening

K Clearance to a mechanical air supply inlet

36 in (91 cm) above if within 10 ft (3 m) horizontally

6 ft (1.83 m)

L

Clearance above paved sidewalk or paved driveway located on public property

7 ft (2.13 m)

M Clearance under veranda, porch, deck, or balcony

12 in (30 cm)

Table 5. Non-Direct Vent Clearances

Page 21

Bradford White Corporation

4.6.3 Venting Requirements in the Commonwealth of Massachusetts

In Massachusetts the following items are required if the side-wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches. From Massachusetts Rules and regulations 248 CMR 5.08

4. Inspection The state or local gas inspector of the side-wall horizontally vented gas fueled appliance shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a) 1-4.

1.Installation of Carbon Monoxide Detectors
At the time of installation of the side wall vented gas fueled appliance, the installing plumber or gasfitter shall observe that a hard-wired carbon monoxide detector with an alarm battery back-up is installed on the floor level where the gas appliance is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery operated or hard-wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side-wall horizontally vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for installation of hard-wired carbon monoxide detectors.
a. In the event that the side-wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard-wired carbon monoxide with alarm and battery back-up may be installed on the next adjacent floor level.
b. In the event that the requirements of the subdivision cannot be met at the time of completion of installation, the owner shall have a period of thirty (30) days to comply with the above requirements, provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm be installed.

2. Approved Carbon Monoxide Detectors
Each carbon monoxide detector shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

3. Signage. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print no less than one-half (1/2) inch in size: “GAS VENT DIRECTLY BELOW, KEEP CLEAR OF ALL OBSTRUCTIONS”.

Infiniti® GR Tankless Water Heater

Page 22

NOTICE
DO NOT COMMON VENT GR UNITS WITH ANY OTHER APPLIANCE. GR Series units are never permitted to share a vent with Category I appliances.
4.6.4 Common Vent Test
NOTE: This section does not describe a method for common venting the water heater units. It describes what must be done when an existing unit is removed from a common vent system.
NOTICE
At the time of removal of an existing water heater, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.
1. Seal any Not Used openings in the common venting system.
2. Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition.
3. Insofar as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed.
4. Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so the appliance will operate continuously.
5. Operate the main burner for 5 minutes then, determine if the cut-draw overflows to the discharge opening. Use the flame of a match or a candle or the smoke of a cigarette, a cigar or a pipe
6. Once it has been determined, according to the method indicated above, that each device connected to the vent system is placed in the open air in an adequate manner. Install the doors and windows, fans, the registers of chimneys and gas appliances to their original position
7. Any malfunction of the venting system should be corrected so that the installation conforms to the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and (or) the installation codes CAN/CSA-B149.1. If the size of a section of the evacuation system must be changed, the system should be modified to comply with the minimum values of the relevant tables of appendix F of the National Fuel Gas Code, ANSI Z223.1/ NFPA 54 and (or) the installation codes CAN/CSA-B149.1

AVIS
NE PAS METTRE EN COMMUN LES UNITÉS GR AVEC UN AUTRE APPAREIL. GR Series unités ne sont jamais autorisés à partager un évent Catégorie I avec les appareils.
AVIS
Au moment du retrait d’une chaudière existante, les mesures suivantes doivent être prises pour chaque appareil toujours raccordé au système d’évacuation commun et qui fonctionne alors que d’autres appareils toujours raccordés au système d’évacuation ne fonctionnent pas:
1. Sceller toutes les ouvertures non utilisées du système d’évacuation.
2. Inspecter de façon visuelle le système d’évacuation pour déterminer la grosseur et l’inclinaison horizontale qui conviennent et s’assurer que le système est exempt d’obstruction, d’étranglement, de fuite, de corrosion et autres défaillances qui pourraient présenter des risques.
3. Dans la mesure du possible, fermer toutes les portes et les fenêtres du bâtiment et toutes les portes entre l’espace où les appareils toujours raccordés au système d’évacuation sont installés et les autres espaces du bâtiment. Mettre en marche les sécheuses, tous les appareils non raccordés au système d’évacuation commun et tous les ventilateurs d’extraction comme les hottes de cuisinière et les ventilateurs des salles de bain. S’assurer que ces ventilateurs fonctionnent à la vitesse maximale. Ne pas faire fonctionner les ventilateurs d’été. Fermer les registres des cheminées.
4. Mettre l’appareil inspecté en marche. Suivre les instructions d’allumage. Régler le thermostat de façon que l’appareil fonctionne de façon continue.
5. Faire fonctionner le brûleur principal pendant 5 min ensuite, déterminer si le coupe-tirage déborde à l’ouverture de décharge. Utiliser la flamme d’une allumette ou d’une chandelle ou la fumée d’une cigarette, d’un cigare ou d’une pipe.
6. Une fois qu’il a été déterminé, selon la méthode indiquée ci-dessus, que chaque appareil raccordé au système d’évacuation est mis à l’air libre de façon adéquate. Remettre les portes et les fenêtres, les ventilateurs, les registres de cheminées et les appareils au gaz à leur position originale.
7. Tout mauvais fonctionnement du système d’évacuation commun devrait être corrigé de façon que l’installation soit conforme au National Fuel Gas Code, ANSI Z223.1/NFPA 54 et (ou) aux codes d’installation CAN/CSA-B149.1. Si la grosseur d’une section du système d’évacuation doit être modifiée, le système devrait être modifié pour respecter les valeurs minimales des tableaux pertinents de l’appendice F du National Fuel Gas Code, ANSI Z223.1/NFPA 54 et (ou) les codes d’installation CAN/CSA-B149.1

Page 23

Bradford White Corporation

4.7 Air Supply and Vent Connections 4.7.1 Vent / Air Pipe Lengths

Water Heater model
GR199

3 Combustion Air / Vent Pipe Max
150´ (45M)

2 Combustion Air / Vent Pipe Max
60´ (18M)

Table 6. Maximum Vent / Air Pipe Lengths for either 3″ or 2 ” Pipes

Note : For each elbow, reduce maximum allowable length · 5 feet (1.5M) for each 3-inch 90-degree elbow · 3 feet (0.9M) for each 3-inch 45-degree elbow · 8 feet (2.4M) for each 2-inch 90-degree elbow · 4 feet (1.2M) for each 2-inch 45-degree elbow · Max 8 elbows for 3 vent, Max 5 elbows for 2 vent

4.7.2 Direct Venting The water heater uses 3 or 2 diameter exhaust and 3 or 2diameter intake air ducts. To ensure the draw of air directly from and exhaust of air directly to the outside of the building, create an airtight seal from the water heater collar to the vent termination.
(For installations in Canada) field-supplied plastic vent piping must comply with CAN/CGA B149.1 (latest edition) and be certified by the Standard For Type BH Gas Venting Systems, ULC-S636. Components of this listed system must not be interchanged with other vent systems or unlisted pipes or fittings. All plastic components and specified primers and glues of the certified vent system must be from a single system manufacturer and must not be intermixed with another system manufacturer’s parts.
This water heater has a built-in control to limit the exhaust temperature.
Tightening — Water Heater Collar (Socket) to Vent Pipe & Inlet Pipe Canada has adopted standard ULC S636 which requires the following additional items. The following steps for cement application are highlighted:
Clean and dry your selected PVC, CPVC vent pipe and Water Heater collar (socket). – You can select to the size of vent pipe (2 & 3), according to the installation conditions. – Push the pipe into the collar (socket) until it touches the bottom of the socket fitting.

Infiniti® GR Tankless Water Heater

4.7.3 Single Venting
Read and Follow Sections 4.3 Guidelines First.
1. Insert the termination end cap into the intake air duct.
2. Provide two openings to allow for circulation of combustion air as specified by ANSI Z224.1/NFPA 54 or CAN/CGA B-149.1:

Model
Maximum Input (BTU/H)
Indoor make up air is provided, a minimum free
area of 1 in2 per 1,000 BTU/H

GR199
199,000
199 in2 14 1/4″ (W)
x 14 1/4″ (H)

4.8 Vent / Air Pipe Termination
All Terminations: · After connecting terminals, install vent screens on both the vent and air inlet. Two 2″ vent screens are included with each unit. Additional replacement screens are available for purchase from the manufacturer.

Vertical Vent Termination · Direct Vent – Vertical Terminations
with Sloped Roof

Vent Screens are required

Page 24

Page 25 4.9 Vent Pipe Termination (cont
Horizontal Vent Termination · Direct Vent – Sidewall Termination
Exhaust
12″ MIN Apart

Bradford White Corporation

Exterior Wall
Vent Screens are required

Exhaust
Exhaust Screen

1″ MIN 12″ MIN

90o Elbow

NOTE: The Exhaust must be equal to or above the Combustion Intake while at a Minimum of 12″ apart.

A

FRONT VIEW

NOTE: Must be 12″ Minimum distance
above highest anticipated snow level
or grade, whichever is greater.

Air Intake Screen
Combustion Intake

SIDE VIEW

Exhaust

Exhaust
Exhaust Screen

Exterior Wall

12″ MIN
12″ MIN

Vent Screens are required

12″ MIN 90o Elbow

1″ MIN Sill

Combustion Intake

NOTE: Must be 12″ Minimum distance
above highest anticipated snow level
or grade, whichever is greater.

Air Intake Screen
Combustion Intake

B

FRONT VIEW

SIDE VIEW

Exhaust
12″ MIN 12″ MIN
Combustion Intake

Exhaust

Exhaust Screen

12″ MIN
Combustion Intake
NOTE: Must be 12″ Minimum distance
above highest anticipated snow level
or grade, whichever is greater.

Exterior Wall
Vent Screens are
required
1″ MIN Sill

C

FRONT VIEW

SIDE VIEW

Infiniti® GR Tankless Water Heater Concentric Vent Termination
· Direct Vent – Optional Horizontal and Vertical Concentric Vent
ent – Optional Horizontal and

Page 26
Exterior Wall

ExtSeridioerWWaalllKl it

(2″ or 3″)

E

Side Wall Kit (2″ or 3″)

Exhaust
12″ Minimum clearance above highest anticipated
wshnEiocxwhteelrevievoerrliWsograrglelraatdeer.,

12″ Minimum clearance
above highest anticipated snow SleidvelWoragll rKaidt e, whichev(e2r” iosrg3r”e)ater.

Exhaust

1″ (25mm) to 4″ (100mm)

Strap

m) to 0mm)

Strap
Combustion Air
12″ Minimum clearance above highest anticipated snow level or grade, whichever
is greater.

a5ramnmce) to c1i0p0amtemd ) whichever

Strap

Vent Combustion Air

clearance anticipated de, whichever er.

Vent

12″ Minimum clearance above highest anticipated
snow level or grade, 12″ (30cm) Minimum CombustiownhAicirhever is greater. clearance above
highest anticipate snow level.
12″ (3V0ecnmt ) Minimum clearance above highest anticipate snow level.

12″ (30cm) Minimum clearance above highest anticipate snow level.

Vent Combustion Air

Vent Combustion Air

Vent Combustion Air

Page 27

Bradford White Corporation

4.9 Gas Supply and Piping
Gas piping should be supported by suitable hangers or floor stands, not the appliance.
Review the following instructions before proceeding with the installation.
1. Verify that the appliance is fitted for the proper type of gas by checking the rating plate. GR Series water heaters will function properly at elevations up to 10,000 feet (3050 m). Refer to Section 4.12 for High Altitude Settings.
2. Refer to Table 7, Table 8, and Table 9 for sizing piping.

WARNING: Open flame can cause gas to ignite and result in property damage, severe injury, or loss of life.
NOTE: The GR Series appliance and all other gas appliances sharing the gas supply line must be firing at maximum capacity to properly measure the inlet supply pressure. The pressure can be measured at the supply pressure port on the gas valve. Low gas pressure could be an indication of an undersized gas meter, undersized gas supply lines and/or an obstructed gas supply line.

3. For minimum and maximum gas supply pressures, see Table 10.
4. Run gas supply line in accordance with all applicable codes.
5. Locate and install manual shutoff valves in accordance with state and local requirements.
6. A sediment trap must be provided upstream of the gas controls.
7. All threaded joints should be coated with piping compound resistant to action of liquefied petroleum gas.
8. The appliance and its individual shutoff valve must be disconnected from the gas supply piping during any pressure testing of that system at test pressures in excess of 1/2 PSIG (3.45kPa).
9. The unit must be isolated from the gas supply system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 PSIG (3.45kPa).
10. The appliance and its gas connection must be leak tested before placing it in operation.
11. Purge all air from gas lines.

SCHED 40 METAL PIPE CAPACITY FOR 1.50 SPECIFIC GRAVITY UNDILUTED PROPANE
NOMINAL PIPE SIZE @ 11″ W.C. INLET AND 0.5″ W.C. PRESSURE DROP

SIZE LENGTH

1/2″ 3/4″

1″

MAXIMUM CAPACITY IN THOUSANDS OF BTU PER HOUR

20

200

418

787

40

287

541

60

231

434

80

197

372

100

175

330

NOTES: 1. Follow all local and national propane gas codes for line sizing and equipment requirements. 2. Verify that inlet gas pressure remains between 4 and 13 inches of water column before and during operation.
Source: ANSI Z223.1-80 National Fuel Gas Code.

Table 7. Nominal Pipe Size, Propane

SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY NATURAL GAS NOMINAL PIPE SIZE @ 0.30″ W.C. PRESSURE DROP

SIZE FT

1/2″ 3/4″

1″

CUBIC FEET OF GAS PER HOUR

20

92 190

350

40

130

245

60

105

195

80

90

170

100

12. Note if using 1/2″ Gas line a maximum of 24 equivalent feet is allowed.

Table 8. Nominal Pipe Size, Natural Gas

EQUIVALENT LENGTHS OF STRAIGHT PIPE FOR TYPICAL SCH 40 FITTINGS NOMINAL PIPE SIZE

FITTING

1/2″ 3/4″

1″

LINEAR FEET

90° ELBOW

3.6

4.4

5.2

TEE

4.2

5.3

6.6

Table 9. Equivalent Pipe Lengths

Infiniti® GR Tankless Water Heater

Page 28

4.9 Gas Supply and Piping (continued)

The gas connection fitting on the unit is 3/4 male NPT.
The supply line must be sized for the maximum output of the water heater model being installed. If there are additional gas appliances from the main supply line, you must measure sizes of the supply line according to the COMBINED total maximum BTU/hr draw for the appliances as if they were all operating at the same time.
Measure the length of the gas supply line from the gas meter to the Water Heater. Use the tables in this manual or refer to the gas line manufacturers sizing information to determine the correct supply pipe size.
The gas shut-off valve in the gas supply line should be installed close to the unit.

To facilitate any future maintenance, it is also recommended that an approved gas union fitting be installed in the supply line between the shut-off valve and the 3/4 male NPT connection on the Water Heater.

  1. Install an approved gas line pipe to gas line connection under the Water Heater. Include manual shut off valve and gas union connection, as shown.
  2. Test gas pressure to make sure it meets the minimum standards and does not exceed the maximum standards for the water heater.
  3. Leak test the gas line pipe before placing the unit in operation. Use approved leak detector liquid solutions only to check for leaks.
    Do not operate the water heater until all connections have been completed and the heat exchanger is filled with water.
    Water Heater MUST be installed downstream of the gas meter for adequate gas supply.

Gas line close position

Gas line open position

Page 29

Bradford White Corporation

Natural Gas piping installation.

The Water Heater is recommended to be the first appliance to be connected to the gas supply line.
Union Manual gas shut off valve 1/2″~3/4″ Gas pipe size

The Water Heater is recommended to be the first appliance to be connected to the gas supply line.

CMonanneucatliognas shuOt othffevraalvpepliance 1/2″~3/4″ Gas pipe size

Connection

Other applianc

G

Sediment Trap G

Sediment Trap

Capacity : not less than ‘total capacity oCf acopnancietyct:endoatplepslisanthcaens’ ‘total capacity of connected applian

Gas meter

Gas meter

Propane gas piping installation.

LP GAS TANK

Union Full size gas pipe 1/2″ pipe

Manual shut off valve

Other appliance

Sediment Trap
Gas Regulator (supply press 12″) Gas Regulator (2 psi)

Infiniti® GR Tankless Water Heater
4.10 Gas Supply Pressure
Refer to the illustration. Check the gas inlet pressure measurement from inlet gas pressure port.(Loosen the port bolts before you check the gas inlet pressure.)
1. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).
2. The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).

Offset Fire Adjustment Screw
Manifold pressure port.
Inlet Gas pressure port

Page 30

Natural Gas

Maximum Pressure
Minimum Pressure

10.5 WC
3.5 WC

Propane

Maximum Pressure
Minimum Pressure

14.0 WC
8.0 WC

Table 10. Min and Max Inlet Gas Line Pressures

4.11 Gas Setup and Adjustment

WARNING

Follow these steps.
1. Establish a call for water by opening a hot water tap.
2. Set up your combustion analyzer and place the sensor in the combustion test port.

Installer may be required to verify combustion settings as part of the installation process. CO should not exceed 200 PPM. Check local codes.

3. Per Table 15 for Max fire, change dip switch 6 to

Standard Factory Setting is for MIN Fire. 9.0%

ON and 7 to OFF. The unit will cycle up to Max fire. Make sure to draw from at least 2 sinks and 2

CO2 @ 0 – 2,000 ft altitude (Natural Gas).

showers when performing this verification.

4. Wait for your combustion analyzer to stabilize

(This may take up to 3 minutes depending on your

analyzer). Then measure your CO2 for Max fire. Refer to Table 11 for acceptable

Max fire combustion readings. DO NOT ADJUST CO2 AT MAX FIRE, ONLY AT MIN FIRE. 5. Change dip switch 6 to OFF and 7 to ON. The unit will cycle down to MIN fire.

CO2 Values

Natural Gas (NG) Propane Gas (LP) 2″ or 3″ VENT 2″ or 3″ VENT

GR199

MAX FIRE

(all versions and

8.5 – 10.5%

9.5 – 11%

all altitudes) MIN FIRE

8 – 10%

9 – 10.5%

Continue to next page.

Table 11. CO2 Values

Manifold Pressure

GR199

MIN FIRE

`1DWXUDO*DV ‘ type combustibility
+0.07″ to +0.13″ WC

`3URSDQH’ type combustibility
-0.02″ to -0.08″ WC

Table 12. Manifold Pressures

Page 31

Bradford White Corporation

6. Wait for your combustion analyzer to stabilize. Then measure the CO2 for MIN fire. Refer to Table 11 for acceptable MIN fire combustion readings.
7. If needed, open the gas valve adjustment port by removing the cap screw with a T15 Star wrench
8. Use the Star wrench to make a minor adjustments; 1/8 of a turn clockwise to increase or 1/8 of a turn counterclockwise to decrease CO2.
9. It may be necessary to go back and forth between

MAX fire and MIN fire several times (making adjustments only at MIN fire) before CO2 levels are acceptable. Be sure to put the adjustment port cap screw back into the valve when done. 10. Once the CO2 and manifold pressure
measurements for MIN fire are acceptable per Table 12, set dip switches 6 and 7 to the OFF position for nominal fire (normal operation).

4.12 Gas High Altitude Setting (no adjustment is needed below 2000 feet)

The GR Series has been set up at the factory for

altitudes of less than 2,000 ft, but it may be installed at

elevations up to 10,000 ft for use with Natural Gas or

Propane. If the installation is at an altitude of greater than

2,000 ft, then altitude settings need to be adjusted in the

Installer Mode as describe below.

E

NOTE: Above 2,000 ft (610 m), the water heater will

de-rate by 2-4% for each 1,000 ft (305 m) of altitude gain.

High Altitude settings (2,000 ~ 10,000 ft)

1. With the Power turned OFF, press the ‘Modes button’ Parameters Mode.

for 5 seconds to get into the Installer

2. Turn the dial until `10:HA’ appears.

190:H: HAA

Choose the correct value from the following four options.

3. Press the dial.
4. Set the high altitude value by turning the dial. Refer to Table 13 for proper altitude setting.
5. Press the dial again to save the setting.

0 – 2
2 – 5 5 – 8 8 – 10

0 ~ 1,999 ft (0 – 609 m) 2,000 ~ 4,999 ft (610 – 1,523 m) 5,000 ~ 7,999 ft (1,524 – 2,438 m) 8,000 ~ 10,000 ft (2,439 – 3,048 m)

Table 13. Altitude Settings

6. Press the `Modes button’ for one second, to Save the number and to go back to initial status.

Infiniti® GR Tankless Water Heater

Page 32

4.13 Plumbing Guidelines.
– Ensure pipe material is suitable for the local codes and industry standards. – The pipe must be cleaned and without any debris. – Do not apply torch heat within 12 of the bottom connections of the unit. – The size of the hot water pipe should be 3/4 diameter. – Isolation valves(Shutoff valve) will be used. – All piping should be insulated.

Applicable Backflow Preventer – Apply a backflow preventer valve in the make- up water supply (water Inlet) to the unit as required by local
codes.

IsIsoolalatitoionnvavlavleve BBaacckfkloflwow pprerevveentnetrer
PPreresssvsuvauralevrleevreerleielifef BallBvaalllvvealve
AMAVnanitlxtvi-iie-snscg(cawalVhdledarralevtreeradetqemudiixreindg
by local code)
3/4″ PIPE (GAS INLET ) 3/4″ PIPE (DHW OUTLET)

CAUTION

3/4″ PIPE (GAS INLET )

Scalding Risk: The use of an anti-scald mixing valve at the hot water outlet (water heater location) can reduce potential for scalding. Contact Manufacturer for recommended models. Check with local codes.


3/4″ PIPE (COLD INLET)
CAUTION
3/4″ PIPE (DHW OUTLET)
Use the MINIMUM pipe size for all Water Heater loop piping Domestic hot water pipe minimum size: 3/4 When using external recirculation mode with the built- in pump, observe the following maximum recirculation pipe lengths including fittings (3/4″ pipe is recommended): -1/2″ Pipe- 200′ (60m) of equivalent length -3/4″ Pipe500′ (150m) of equivalent length. Lengths in excess of these limits will require an external recirculation pump.

3/4″ PIPE (DCW INLET)

CAUTION

A pressure relief valve (PRV) must be installed

immediately at water heater outlet with no valves

between.


ATTENTION
A soupape de surpression (PRV) doit être installé immédiatement à sortie chaudière avec pas de vannes entre. _____

Water Quality
Potable water is defined as drinkable water supplied from a utility or from a well, in compliance with EPA secondary maximum contaminant levels (40 CFR Part 143.3) as shown in Table 14. Water quality must be within these maximum allowable parameters. If your water contains contaminants in quantities greater than outlined by EPA, then water treatment is required and additional maintenance may also be required. If you suspect that your water is contaminated in any way, discontinue use of the appliance and contact a qualified technician.

Contaminant Total Hardness Aluminum Chloride Copper Iron

Maximum Allowable Level 200 mg/l (12 grains/gallon) 0.05 to 0.2 mg/l 250 mg/l 1 mg/l 0.3mg/l

Table 14. Water Quality Specifications

Contaminant

Maximum Allowable Level

Manganese

0.05 mg/l

pH

6.5 – 8.5

Sulfate

205 mg/l

Total Dissolved Solids (TDS) 500 mg/l

Zinc

205 mg/l

Page 33
4.14 Re-Circulation Setting Select Water Heater Mode (RTGR199N1 / RTGR199X1)

Bradford White Corporation

Mode

Description

No Recirculation Internal

Same as regular tankless water heaters. Hot water without dedicated return line.

External

Quick hot water with dedicated return line.

On Demand (Title-24)”
Crossover

Only operates recirculation line with a push of a button.
Quick warm water without dedicated return line.

  • Recirculation is activated by Timer [Auto / Manual].

Setting 11:RC OFF
Itnl

Requirement

Performance

Dedicated Return Line
No

Accessory –

Wait Time Water Savings

Energy Savings

Hot Water Temperature

No

Better

Better

Better

Etnl

Yes

Best

Better

Best

tt24

Yes

O

Better

Best

Best

CrOS

No

O

Best

Good

Warm

Recirculation timer setting can be changed by customer’s own desire time. Auto (self learning mode) function can be selected by customer’s need.

Recirculation Modes : Internal Mode / External Mode / On-Demand Mode / Crossover Mode. To select a recirculation mode, you must set from the `Installer Mode’ on the front control panel.(Refer to the page 34 ) When you use a recirculation mode, there will be some minor efficiency loss, as a result of the water heater maintaining a steady temperature within the recirculation loop. With the recirculation operation, hot water will be automatically circulated in the hot water pipes. Even with this function activated, it may take several minutes for hot water to be completely circulated through the plumbing system. Set the timer to activate the recirculation system prior to the first use of hot water to ensure hot water is available. This water heater has a built-in pump and temperature sensor.

No Recirculation Mode, Internal Recirculation Mode
1. Only POTABLE water may be plumbed through the water heater. 2. The water heater cannot be used for space heating applications. 3. Expansion tank is required if a backflow preventer is installed.

Infiniti® GR Tankless Water Heater

Page 34

Recirculation Mode
[ External Mode] · Provides most comfortable option. Maintains consistent hot water availability during specified times. · Timer can be manually customized or programmed to automatically learn daily usage patterns. · Ability to optimize by using Installer Mode function 3: RT to adjust loop temperature for maximum comfort and safety.

Dedicated Return Line
YES

Accessory –

Setting 11 : RC
ON

Maximum Loop Length

1/2″

3/4″

200′ (60m) 500′ (150m)

Controlled by Timer

The recirculation pipe must be installed in the field in order to apply the `External Mode’. This mode allows the water heater recirculation pipes to be warmed up and serving as the freeze protection function.

Page 35

Bradford White Corporation

Recirculation Mode
[ On Demand(tt24) Mode] · Provides best energy savings option · Designed to meet California Title 24 requirements. · Recirculation will only operate when the push button switch is pressed. Hot water will not be available immediately. · Built-in timer function is disabled · Will start circulation pump on-demand to purge cold water from the water lines and replace with hot water. · Pump will stop operating once hot water has successfully reached 102°F at the installed temperature sensor. · Do not repeatedly press on-demand button. On-demand function will not operate if the water in the line is already warm.

Temp. Sensor

Dedicated Return Line
YES

Accessory
Suface Temperature
Sensor

Setting 11 : RC
tt24

Maximum Loop Length

1/2″

3/4″

Controlled by

200′ (60m) 500′ (150m) Push Button Switch

Infiniti® GR Tankless Water Heater

Page 36

Recirculation Mode
[ Crossover(CrOS) Mode] · Provides recirculation option for homes without a dedicated return line by utilizing the cold water line as a return line.
· Timer can be manually customized or programmed to automatically learn daily usage patterns. · In order to prevent hot water from being supplied into the cold water line, the thermal element in the crossover valve will close at 95°F.

Dedicated Return Line
NO

Accessory
Crossover Valve

Setting 11 : RC
CrOS

Maximum Loop Length

1/2″

3/4″

200′ (60m)

500′ (150m)

Controlled by Timer

Page 37
4.15 Setting the Control Panel Setting the internal Clock

Bradford White Corporation

To use the Recirculation Timer’, the device’s internal clock should be adjusted to the current time. Clock settings can be set in theUser Mode’.
[ To enter `User Mode’ ]

Power on the control panel must be on.

Press and hold Function Button’ for approximately 5 seconds to enterUser Mode’.

[A:GA] is displayed on the display screen. From here, turn the `Dial Button’ to scroll through the setting.

· Set in [J:TA] after turning the Dial Button’ inUser Mode’. · Set the HOUR – MINUTE in regular sequence..

Customer can set the current time in [J:TA].

Turn the Dial Button’ clockwise until Enter the ClockSetting mode’ by pressing `Dial Button’ when

[J:TA] is displayed.

flashing the [J:TA] character.

1. Setting hour : 18
(Setting in Military Time)

Set the HOUR’ by turning theDial Button’. (Only the flashing number can be changed.) Press the `Dial Button’ to store the setting.
2. Setting minute : 10

Set the MIN’ by turning theDial Button’. (Only the flashing number can be changed.) Press the Dial Button’ to store the setting. 3\. PressFunction Button ( )’ to return to normal operation mode.

Infiniti® GR Tankless Water Heater To set the recirculation mode (Internal, External, On-Demand, Crossover)

Page 38

1. Press the ‘Power Button’ OFF. (‘Display Screen’ will be blank) 2. Press and hold the Function Button’ for approximately 5 seconds to get into the Installer Mode’.

3. 1:EH’ oFF will appear on theDisplay Screen’. Rotate the dial clockwise until 11:RC’ oFF is shown. 4\. Press theDial Button’ and `oFF’ will start blinking.

5. Turn the Dial Button’ untilItnL’ is displayed. ‘ItnL’ is for Internal Mode ‘EtnL’ is for External Mode. ‘tt24’ is for On-Demand Mode. ‘CrOS’ is for Crossover Mode.
Verify which type of Recirculation System is installed. (See p 32~35)
6. Press the ‘Dial Button’ until ‘ItnL’, ‘EtnL’ or ‘tt24’ or ‘CrOS’ is blinking. Turn the ‘Dial Button’ to the desired mode.
7. Press the ‘Dial Button’ to save the setting. 8. Press the ‘Function Button’ to exit lnstaller Mode. 9. Press the ‘Power Button’ to turn the water heater back on.

Mode
Internal
External On Demand (Title-24)” Crossover

Screen Display

Description

Setting 11:RC

Requirement

Performance

Dedicated Return Line

Accessory

Wait Time Water Savings

Energy Savings

Hot Water Temperature

Hot water without dedicated return line.

Itnl

No

Better

Better

Better

Quick hot water with dedicated return line.

Etnl

Yes

Best

Better

Best

Only operates recirculation line with a push of a button.

tt24

Yes

O

Better

Best

Best

Quick warm water without

dedicated return

CrOS

No

O

Best

Good

Warm

line.

Page 39
4.16 Disposal of Condensate
High efficiency gas condensing Water Heaters create condensation when operating. Condensation has acidic (pH) of approximately 4-5.
Condensate must be drained in accordance with all local regulations. Follow your local code with regards to the disposal of condensation. One of 3 disposal methods must be followed 1. to floor drain 2. to neutralizer drain (optional kit * ) 3. to condensate pump (field supplied)
If a neutralizer is installed, periodic replacement of the lime stone (or neutralizing agent) will be required. The rate of depletion of the lime stone varies upon usage of the Water Heater. During the first year of operation, please check the neutralizer every few months for depletion.
Apply only corrosion-resistant materials for the condensate drain lines such as 1/2 PVC, CPVC, Polypropylene pipe.
NOTICE
Category IV water heaters must be installed with a means provided for the drainage of condensate.
AVIS
Catégorie IV chauffe-eau doit être installé avec une moyens prévus pour l’évacuation des condensats.
CAUTION Condensate is mildly acidic (pH=5), and may harm some floor drains and/or pipes, particularly those that are metal. Ensure that the drain, drainpipe, and anything that will come in contact with the condensate can withstand the acidity, or neutralize the condensate before disposal. Damage caused by failure to install a neutralizer kit or to adequately treat condensate will not be the manufacturer’s responsibility.


Bradford White Corporation

Infiniti® GR Tankless Water Heater
4.17 Pressure Relief Valve
WARNING
An approved `Pressure Relief Valve’ must be installed in this installation. The Valve must be an approved ASME HV Relief Valve, installed on the DHW supply line for domestic hot water loop as close to the unit as possible. (Valve size 3/4, maximum 150psi).

Page 40

4.18 Electrical Wiring Connections
WARNING
Install wiring and electrically ground Water Heater in accordance with authority having jurisdiction or in the absence of such requirements follow the National Electrical Code, NFPA 70, and/or CSA C22.1 Electrical Code-Part 1 in Canada.
ELECTRICAL SHOCK HAZARD — For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.
This appliance must be electrically grounded per local codes. Ensure the electrical receptacle, in which the water heater will be plugged into, is properly grounded; if wiring directly. Do not attach the ground wire to the gas or the water piping as plastic pipe or dielectric unions may isolate the Water Heater electrically. The wiring diagrams contained in this manual are for reference purposes only. Refer to this diagram and the wiring diagram of any controls used with the Water Heater. Read, understand and follow all wiring instructions

supplied with the controls. Do not disconnect the power supply when the unit is in normal operation. Damage caused by freezing is not covered under the warranty. Manual(Rocker) switch maximum allowable current for each circulator is 16 amps at 125VAC. ( Housing : Nylon #66 UL 94V-2 , Rocker : Nylon #66 UL 94V-2, Terminal : Copper Alloy )

Page 41

Bradford White Corporation

4.19 DIP Switches
There is one set of DIP switches. DIP switches 6 and 7 must be set to OFF when operating the water heater normally.

DIP Switch Function

1-3

Machine power

4

OVER-RIDE Inlet DHW Flow Limiter

5

Propane or Natural Gas

6

Max.

7

Min.

Table 15. Dip Switches

OFF

ON

Do NOT Move.

ON

OFF

LP

NG

Normal

MAX Fire

Normal

MIN Fire

Shown in it’s actual orientation in the unit.

Maximum flame detecting voltage Pre-purge time (Tp)
Safety Time (igniting time) (Ts) Igniting interval time Post-purge time (Tip)
Over-heating 1,2,3 protection detection time Temperature sensor fault detection time Number of trial for ignition (Ntl) DHW water SET temperature range DHW water OFF temperature DHW water ON temperature DHW water ON minimum water flow DHW water OFF minimum water flow
Table 16. System Control Settings

2.4V Maximum 10s, minimum 1s
3.5s <10s 60s <1s <2s
10 95°F ~ 140°F (180°F with High Temp Venting installed) DHW target temperature + DHW differential temperature(27°F)
Below DHW target temperature +5°F 0.5 GPM (12Hz) 0.5 GPM (10Hz)

Infiniti® GR Tankless Water Heater 4.20 Wiring Diagram

Page 42

Page 43
4.21 Ladder Diagram

Bradford White Corporation

Infiniti® GR Tankless Water Heater

4.22 Electrical Connections
Connector

no. of location and type

Pin nr.

Board Silk

CN9 CN1 CN4 CN8
CN11

1

2

L

3

CP1

4

IT

5

HEAT/CP2

6

GV

7

8

N

9-12

N

1

2

3

RS-485

4

5

1

2

3 FAN
4

5

6

1

2 MCU ISP
3

4

1 HWL
8

2 LWL
10

3 HD
11

4 TH
12

5 APS
13

6 EL
14

7 BL
15

8 HL
16

Descriptions
GROUND Power Supply Line Internal Circulation Pump Ignition Transformer Ceramic Heaters Gas Valve Unuse Power Supply Neutral AC Power COM Line RS485 + RS485 Unuse RS485 + RS485 Unuse GROUND VDD Fan power(start coil) Fan power(end coil) Fan speed feedback signal GND ISP /Reset port ISP TOOL0 Data port VCC
Unused
Water Leak Sensor
Unused
Connect to the Display Control (Thermostat)
Exhaust Air Pressure Switch
Unused
Burner High Limit
Water Temperature High Limit

Page 44
HT SELV

HT (120V~)
SELV (5V) –
SELV (30V) SELV (14V) SELV (30V) SELV (14V) SELV (5VDC)
SELV (12V)
SELV (14VDC)

Page 45

Bradford White Corporation

no. of location and type
CN7 CN12
CN10
CN14
CN3 CN5 CN15

Connector
Pin nr.
1,8 2,9 3,10 4,11 5,12 6,13 7,14 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 1 2 1 2 3

Board Silk
F.S OP.S DH.S I.S BG.S ST.S SP.S

Description
Flame Sensor Outlet Operating Water Temperature Sensor DHW Temperature Sensor Inlet Water Temperature Sensor Exhaust Water Temperature Sensor Surface Temperature Sensor Unused
AGM Stepper Motor Coil / Y Phase

AGM Stepper Motor Coil / Y Phase AGM
GND AGM Stepper Motor Position VDD
DHM Stepper motor coil /Y phase

DHM (Mixing Valve)
IWM (Flow Control Valve)
Push Button Switch FLUX1 RPM FLUX2

DHM Stepper motor coil /X phase
GND DHM Stepper motor position VDD VDD GND IWM Stepper motor position VDD IWM Stepper motor coil /X phase IWM Stepper motor coil Y phase VDD IWM Stepper motor coil /X phase IWM Stepper motor coil Y phase Unused VCC Title 24 GND VCC Water Flow Sensor GND Fan RPM Sensor GND VCC Recirculation Flow Sensor GND

HT SELV SELV (5V) SELV (24V)
SELV (14V)
SELV (14V)
SELV (5V) SELV (5V)

Infiniti® GR Tankless Water Heater

SECTION 5

Control Display and Operation

5.1 Control Dial and Buttons

Function Button

Indicator (Green) Hot Water Temperature Button Display Screen

Page 46

Power ON / OFF Button

Dial Button / Enter

For turning the water heater ON / OFF.

Recirculation Timer Button

Buttons Power Modes Hot Water Timer Scroll / Select

PRESS (Tap)

Functionalities PRESS and HOLD (5 seconds)

Turns Control Display ON / OFF

N/A

Tap to return to menu
DHW Set-Point LOW Range 100 – 120°F (38 – 49°C)

(If Display Power was On ) Status Display Mode (If Display Power was Off ) Installer Mode
DHW Set-Point HIGH Range 125 – 140°F (51.5 – 60°C)

Recirculation Timer Setting

N/A

Turn to scroll, tap to select (clockwise or counterclockwise

N/A

Page 47 5.2 LCD Overview

Bradford White Corporation

LCD has a backlight that will illuminate: · When a user action is detected (a button is pressed) · Turns off when no action within approximately 20 seconds.

External Recirculation Icon Hot Water Operating Icon Vacation Mode Icon Recirculation Timer Icon

Temperature Unit Lock Mode
High Temperature Icon Status Display Freeze Prevention Icon

Combustion Icon PCB-Display Connection Status

Clock Display

Timer Setting (Displayed in units of 30 minutes) Timer Setting (Displayed in units of 1 hour) Pump Operating Icon

[ Example ]

DESIRED HOT WATER TEMPERATURE : 120°F

CURRENT TIME : AM 1:39 Display will be in 12hr format. Setting in 24hr format (Military Time).
TIMER SETTING : SETTING: 5:00 AM ~ 6:30 AM , 6:00 PM ~ 8:00 PM

Infiniti® GR Tankless Water Heater
5.3 Operating Mode
Operating Mode After the Power is turned on, and/or the Control Display is turned on , the Control Display will go through a Start Up’ checklist and briefly show a sequence of diagnostic codes before entering into the Operating Mode. It will then display the following information.

Page 48

Indicate Target DHW Temperature If the flow is present If flame detected Temperature sign Celsius or Fahrenheit letter Main PCB to Display Connection State (If symbol is shown connection status is connected) Current Time

Example

Page 49 5.4 Status Display Mode

Bradford White Corporation

B

C

A

D

Index

Main

Sub

Description

A:GA

HotF rCLF

DHW flow rate by On demand Circulated water flow rate by Internal pump

b:Fr C:oP

Current Blower rpm Heat Exchanger temperature

D:dH

DHW Hot outlet temperature

E:Eh

Exhaust gas temperature

F:In

Cold Inlet temperature

PH

Power Supply Time : 0000 hours

rh

Burner Operating Time : 0000 hours

G:rt

It

Ignition attempts : 0000 cycles

CF

Water accumulated : 0000 gallons

PO

Pump ON time : 0000 hours

AG

AGM Position (0 : Fully opened, 100 : Fully closed)

H:VP

FLCL

Incoming water control valve position(0 : Fully opened, 100 : Fully closed)

bYPS

Water Mixing valve position(0 : Fully opened, 100 : Fully closed)

I:FC

GAL(Default) Flow rate : gpm (Gallon / min), Temperature : F (Fahrenheit)

LIt

Flow rate : lpm (Liter / min), Temperature : C (Celsius)

J:TA

HOUR MIN

Hour setting : 0~23 Minutes setting ” 0~59

K:MD

Model Identification (199 : 199,000 BTU)

L:GT

Gas Type (ng, LP)

M:Pr

Pcb

Control board revision number

PnL

Front Panel revision number

To view any of the above listed Status Parameters,

Press and Hold Button to get into the Status Display Mode.

Rotate Dial until you find the Parameter that you wish to view. Tap Dial to enter that Parameter.

Rotate the dial to view the parameter that you require and then press (tap) Dial to Exit.

Infiniti® GR Tankless Water Heater

Page 50

5.5 DHW Set Point Change Mode
The GR Series has a built in water flow limiter and will automatically adjust the flow rate up or down based on outlet temperature at the inlet side of the water heater. If the temperature drops below the set point, and the water heater is at full fire, the inlet flow to the heat exchanger will be reduced. Therefore, the outlet temperature will begin to rise to the desired set point. If the temperature begins to rise above the set point the flow will increase until full flow is reached. This feature ensures that the outlet water is always the ideal temperature for the user.
If this feature is not desired, then the `over-ride’ to this feature must be turned OFF.
1. Turn off the power to the Control Display. 2. Move DIP switch 4 to the OFF Position.

Set Point Change Modes The display shows the following information when changing water heating temperature set points.

Indicate

Example

Target DHW Temperature When changing set point, the DHW icon will flash When set-point range is high : from 125°F (51.5°C) to 140°F (60.0°C) Temperature sign Celsius or Fahrenheit letter Communication state indicate Current Time

  • Default set-point is 120°F (49°C) To change between Celsius and Fahrenheit, refer to section 5.4 status display mode, and change I:FC from Gal to LIt.

· DHW 100-120°F (38 – 49°C) LOW range (Default)

– To change LOW range, press the

Button. The shower icon and current set point will flash (a

flashing value means it can be changed).

– Turn dial clockwise to increase and counterclockwise to decrease until desired temperature is reached.

– Press dial to save set point changes.

· DHW 125 – 140°F (51.5 – 60°C) HIGH range

– To change HIGH range, press and HOLD the

button for more than 5 seconds. The shower

icon and current set point will flash (a flashing value means it can be changed).

– Turn dial clockwise to increase and counterclockwise to decrease until desired temperature is reached.

– Press dial to save set point changes and to Exit.

CAUTION Scalding Risk: The use of an anti-scald mixing valve at the hot water outlet (water heater location) can reduce potential for scalding. Contact Manufacturer for recommended models. Check with local codes.

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Bradford White Corporation

5.6 Installer Mode

These changes are to be made only by a qualified technician.

To change any of the Installer Parameters, Start by turning OFF the Power
Display Control. Then, with the power OFF, press and HOLD (5 seconds) the button to get into the installer mode. Rotate dial E until you find the installer parameter that you wish to change. Tap dial E to enter that parameter. Adjust to the setting that you require and then press (tap) Dial E to save and to Exit. Finish by pressing button

to the

Index

Description

Main 1:EH

Sub

E0:xx ~ E9:xx

E0:xx – Latest error, E9:xx – Oldest Error

2:cE

no(Default) yES

No clear Error history Clear all error history

no(Default) No reset

3:In

yES

Reset Factory default except 4: AG, 5: FH and 6: FL

4:AG

Default : 0

Adjust AGM plate location for min only (-50 ~ +50)

5:FH

Default : 0

Adjust Blower pwm for High fire (-50 ~ +50)

6:FL

Default : 0

Adjust Blower pwm for Low fire (-30 ~ +30)

no(Default) No reset

7:dr

yES

Reset Burner run time

no(Default) No reset

8:dl

yES

Reset Ignition Cycling time

9:dF

no(Default) yES

No reset Reset Total Water Usage

0 – 2(Default) 0 ~ 2,000 ft (Sea Level)

10:HA

2 – 5 5 – 8

2,000 ~ 5,000 ft 5,000 ~ 8,000 ft

8 – 10

8,000 ~ 10,000 ft

oFF(Default) Deactivate Recirculation functions

Itnl

Internal circulation mode

11:RC

Etnl

External circulation mode

tt24

Title24 circulation mode

CrOS

Crossover circulation mode

Main 12:RT
14:IV

Index Sub HI-2
HI-1(Default) Lo
rIG(Default : 10)
POF(Default : 7)

Description
Recirculation temperature : High Recirculation temperature : Medium Recirculation temperature : Low Pump ON time set (1 ~ 60 minutes) Pump OFF time set (1 ~ 30 minutes)

HI-2

Burner ON by Hot Outlet temp. : High

15:HT

HI-1(Default)

Burner ON by Hot Outlet temp. : Medium

Lo

Burner ON by Hot Outlet temp. : Low

16:cn 17:Eh
18:CK
19:od

Default :0
oFF on(Default)
A.PP1 b.PP2
c:FAn
d.AG E.FL F.bY oFF(Default)
on

Cascade ID (0 : Not Cascaded, 1 : Master, 2 : Followers)
Individual vent Common Vent Burner ON trial with Internal circulation Pump trial with External circulation Fan rotation trail (0 : stop, 100 : Max rpm) AGM Initialization Incoming Water valve Initialization Mixing valve Initialization No Outdoor kit installation Outdoor kit installation

Infiniti® GR Tankless Water Heater 5.7 Error Mode

Page 52

Flashing

Indicate Error `Er . xx’ will flash Installer icon

Example

NOTE: When communication between the Control Display and the main controller is lost, the will not be displayed.

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Bradford White Corporation

SECTION 6

Error Codes

6.1 Error Codes

Error Code

Error Code Description

Possible Remedies

*Lockout Type

Press the Power button to clear the Error Code. If Error happens again:

1. Monitor the gas pressure to the water heater while in operation. Ensure pressure is between 3.5 and

14″WC.

2. Check gas valve wire. Ensure connection is secure.

3. Check flame detection sensor. Ensure connections are secure. Normal operating Settings are more

10

Flame has been lost than

8 (eight) times

2.5DC before ignition, less than 2.5DC after ignition.

Hard Lock

4. Check ignition transformer for proper connection.

5. Clean the spark igniter with steel wool to remove oxides. Ensure proper separation 0.12″ -0.16″ (3 – 4

mm).

6. Replace the spark igniter if damaged.

7. Ensure that the flame is stable when lit.

11

Ignition has Failed 10 (Ten) Times

Press the Power button to clear the Error Code. If Error happens again: 1. Monitor the gas pressure to the water heater while in operation. Ensure gas pressure is between 3.5″ WC and 10.5″ WC for NG and between 8″ WC and 14″ WC for LP. 2. Check gas valve wire. Ensure connection is secure. 3. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5VDC before ignition, less than 2.5VDC after ignition. 4. Check ignition transformer for proper connection. 5. Clean the spark igniter with steel wool to remove oxides. Ensure separation of 0.12″ – 0.16″ (3-4 mm). 6. Replace the spark igniter if damaged. 7. Assure that the flame is stable when lit.

Hard Lock

Operating

This Error Code will clear when the DHW temperature decreases. If Error happens again:

Temperature Sensor 1. Check if dip switch MAX Fire setting is ON. Switches 6 and 7 should be OFF for normal operation.

16

or DHW Sensor detects Water

2. Check if DHW pipe is blocked. Ensure there is enough water flowing to the water heater. 3. Check DHW sensor at DHW outlet. If resistance is zero, replace the sensor.

Temperature Greater 4. Check Operating Temperature sensor at the heat exchanger. If resistance is zero, replace the

than 199°F (93°C)

sensor.

High Limit Overheat Press the Power button to clear the Error Code.

20

Switch ­ Closed is Normal, Open is

1. Inspect the High Limit Overheat switch. Ensure proper connections. 2. Check High Limit Overheat switch. With the switch at room temperature measure the continuity.

Fault

Press the power button to clear the error code.

29

Condensate Trap Blocked

1. Check condensate line and termination for blockages. 2. Check exhaust vent for blockages.

Soft Lock Hard Lock Hard Lock

31

Inlet Water Sensor Open or Short

This Error Code will clear when inlet water temperature reads correctly. If Error happens again: 1. Check inlet water temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor.

Soft Lock

This Error Code will clear when outlet water temperature reads correctly. If Error happens again:

32

DHW Sensor Open or Short

1. Check DHW outlet temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor.

Soft Lock

33

Operating Temperature Sensor Open or Short

This Error Code will clear when outlet water temperature reads correctly. If Error happens again: 1. Check operating temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor.

35

Exhaust Sensor Open or Short

This Error Code will clear when exhaust temperature decreases. If Error happens again: 1. Check exhaust temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor. 3. Check exhaust vent for blockage.

Soft Lock Soft Lock

*Lockout Type : Hard lock: requires manual reset / Soft Lock: resets itself when issue subsides.

Infiniti® GR Tankless Water Heater

Page 54

6.1 Error Codes (continued)

Error Code

Error Code Description

Flame Detected after 39 Exiting a Flame On
Condition

Possible Remedies

*Lockout Type

This Error Code will clear when the false flame condition is remedied. If Error happens again: 1. Check the water heater cover. Ensure it is secure. Flame detection sensor can detect an external light source. 2. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5VDC before ignition, less than 2.5VDC after ignition.

Soft Lock

IMPORTANT: If you smell gas, STOP! Follow the instructions on page 1, this manual, and call a

Gas Leakage is

qualified service technician or the fuel gas utility.

Detected in 10

Press the Power button to clear the Error Code.

40

Minutes, or three times If Error happens again:

within One Hour

1. Check the water heater cover. Ensure it is secure.

Hard Lock

(Greater than 5

2. Check gas connections for leakage with a soapy solution. Fix any leaks.

Seconds Each Time) 3. Check condition of the burner assembly.

41

Fan Speed too High with Flame On

Press the Power button to clear the Error Code. If Error happens again: 1. Check the vent connections for blockages. 2. Check the burner assembly. 3. Check fan operation. If fan appears to be operating normally but RPMs are too low or too high, replace the fan.

Hard Lock

APS – Closed is 42 Normal, Open is
Fault

Press the Power button to clear the Error Code. 1. Check APS and main controller connections. Ensure all are secure. 2. Check APS resistance. If resistance is zero, replace the air pressure switch. 3. Check APS hose. Ensure it is connected and in good condition. 4. Check exhaust vent for blockages.

Hard Lock

43

Burner Overheat Switch Open

Press the Power button to clear the Error Code. If Error happens again: 1. Check burner overheat switch connections. Ensure connections are secure. 2. Check the High Limit Overheat switch. With the switch at room temperature measure the continuity. 3. If the switch is not closed replace the switch.

Hard Lock

Press the Power button to clear the Error Code.
44 Possible pump failure 1. Check pump. 2. If the problem persists, replace the pump.

Hard Lock

If Error happens, the cold inlet water valve closes automatically to prevent water leak damage.

1. Turn power off to the water heater. 45 Water Leak Detection 2. Valve off the water heater to isolate it from the system.
3. Call a qualified installer / service technician to diagnose and repair the source of the leak.

Hard Lock

46

Low recirculation flow

Press the Power button to clear the Error Code
1. Check return and cold water filters. 2. Verify recirculation loop length is within specification. 3. Check the pump operation. 4. Check recirculation setting. (External or On-Demand setting without dedicated return line. External or On-Demand setting with crossover valve)
5. If the problem persists, replace the pump.

Hard Lock

*Lockout Type : Hard lock: requires manual reset / Soft Lock: resets itself when issue subsides.

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Bradford White Corporation

6.1 Error Codes (continued)

Error Code

Error Code Description

Possible Remedies

Hot water 60 temperature
Abnormality

“Press the Power button to clear the Error Code 1. Check if dip switch MAX Fire setting is ON. Switches 6 and 7 should be OFF for normal operation. 2. Check if DHW pipe is blocked. Ensure there is enough water flowing to the water heater. 3. Check DHW sensor at DHW outlet. If resistance is zero, replace the sensor. 4. Check Operating Temperature sensor at the heat exchanger and DHW Outlet. If resistance is zero, replace the sensor.
5. Clean the cold water inlet filter and recirculation return filter. 6. Flush the heat exchanger.

*Lockout Type
Soft Lock

This Error Code will clear when the condition is remedied. If Error happens again:

1. Check the connections to the fan. Ensure all are secure.

61

Fan Speed Feedback Signal Abnormal

2. If the fan does not rotate during the ignition sequence, check for 120VAC power at the fan connection. If 120VAC power is present at the control, replace the blower. If the blower does not have 120VAC

Soft Lock

power, check power at the control. If 120VAC power is not present at the control, replace the control.

65

Supply Water Valve Error

Press the Power button to clear the Error Code. If Error happens again: 1. Turn power OFF and ON at the main power switch inside the water heater. 2. Check wiring connections to supply water valve. Ensure all are secure. 3. Replace supply water valve.

Hard Lock

66 Mixing Valve Error

Press the Power button to clear the Error Code. If Error happens again: 1. Turn power OFF and ON at the main power switch inside the water heater. 2. Check wiring connections to mixing valve. Ensure all are secure. 3. Replace mixing valve.

Hard Lock

67 AGM Error

Press the Power button to clear the Error Code. If Error happens again:
1. Turn power OFF and ON at the main power switch inside the water heater. 2. Ensure fan inlet hole is completely open after turning the power OFF and ON. 3. Check wiring connections to the AGM. Ensure all are secure. 4. Check AGM operation. 5. Replace AGM components.

Hard Lock

Flame Signal 72 Detected before
Ignition

This Error Code will clear when the condition is remedied. If Error happens again: 1. Check the water heater cover. Ensure it is secure. Flame detection sensor can detect an external light source. 2. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5VDC before ignition, less than 2.5VDC after ignition.

Soft Lock

73

DIP Switch is abnormal

This Error Code will clear when the condition is remedied. If Error happens again: 1. Check dip switches. Ensure switches match the ratings plate requirements of the water heater. See dip switch details, this manual, for default settings.

Soft Lock

Infiniti® GR Tankless Water Heater

Page 56

6.1 Error Codes (continued)

Error Code

Error Code Description

Possible Remedies

This Error Code will clear when the condition is remedied. If

76

Poor Communication

Error happens again: 1. Check connections from main control to display panel.

2. If the problem persists, replace the display.

*Lockout Type
Soft Lock

NOTE: This error will only appear in a cascaded system.

1. Turn power OFF and ON at the appliance display panel.

2. If error reappears, ensure all cascaded appliances are powered ON.

3. If error reappears, check Installer Mode parameter 13:cn at all cascaded appliances. Ensure the

address

78

Cascade Communication Error

number matches that of the connected appliance (01 for Master, 02 for Follower 1, etc.) and that no numbers

Soft Lock

are skipped or repeated.

4. Ensure every water heater in the cascade system is connected properly. Inspect the cascade cables

and ensure all are connected without damage or defect. Repair or replace any damaged cables.

NOTE: This error will only appear in a cascaded and common vent system as Er:79 on the Master and

Er:61 on a follower water heater.

1. Check the connections to the fan. Ensure all are secure.

Combustion Issues 2. If the fan does not rotate during the ignition sequence, check for 8 – 26.5VAC power at the fan

79 – Cascade / Common connection.

Soft Lock

Vent Application

If 8 – 26.5VAC power is present at the control, replace the fan. If the blower does not have 8 –

26.5VAC power, check power at the control. If 8 – 26.5VAC power is not present at the control, replace

the control.

This Error Code will go away when the condition is remedied.

If Error happens again:

Exhaust NTC detects 1. Check if dip switch MAX Fire setting is ON. Switches 6 and 7 should be OFF for normal operation.

94

Vent Temperature is Greater than 149°F

2. Check exhaust temperature sensor. Ensure connections are secure. 3. Check sensor resistance. If resistance is zero, replace the sensor.

(65°C)

4. Check exhaust vent for blockage.

Hard Lock

*Lockout Type : Hard lock: requires manual reset / Soft Lock: resets itself when issue subsides.

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Bradford White Corporation

SECTION 7

Troubleshooting

7.1 Diagnostics Before calling for service, review the following diagnostic steps first for saving time and money.
Question & Answer

Indicate Burner does not ignite even if hot water is opened.
Outlet water is not hot enough.
Outlet water is too hot.

Indicator Make sure that the ON/OFF button on the Control Panel has been turned ON. If the monitor on the Control Panel is blank, make sure the power cord is plugged and fuses on the main controller in the units are good. Make sure that there is water supplied to the unit. The heater will be running when the inlet water flow sensor detects the flow over 0.5gpm. Make sure the cold and hot water valve are not plumbed in reverse.
Make sure that cold water and gas supply lines are opened.
Make sure that water lines are not frozen.
Make sure that the set point temperature on the unit is not too low.
Make sure that the filter in the cold water inlet line is not clogged with debris.
Make sure that the gas supply type is correct.
Check if the supply and manifold gas pressures are in accordance with specifications. Make sure that the water flow sensor with three wires has been properly connected on the main water valve. Make sure that the set point temperature on the unit is not too hot.
Make sure that the filter in the cold water inlet line is not clogged with debris.
Make sure that the gas supply type is correct.(Check the provided gas with the water heater model)

Hot water temperature

Make sure that the filter in the cold water inlet line is clean. Check if the supply gas pressure is sufficient.

The blower is still operating after the This is normal because the blower still keeps operating for 3 minutes. If a motor is not

combustion stops.

running in 120VAC, replace the motor.

Abnormal sounds come from unit during operation.

A leak of combustion gas between sealed chamber and exhaust duct inside the unit. Immediately call a qualified service technician for evaluation.
Improper venting termination, make sure that the venting termination complies with specification.
Check if the supply gas pressure is sufficient. Insufficient gas pressure will cause unstable burner flame and noise.

Infiniti® GR Tankless Water Heater

Page 58

7.1 Diagnostics (continued)
Diagnostics and suggested corrective actions This controller is able to record information about the water heater’s condition for the ten previous faults or errors. Refer to the `Error Code’ section of this Manual, (Section 6).

Display
Nothing shown on display control panel and blower running at full speed.

Condition
Panel is not receiving power.

Diagnostic Check wiring for short circuit or incorrect wiring.
Check for 14V output of panel wire.

Corrective Action(s) Correct wiring per wiring diagram including connection of transformer to the control.
Push the `A’ button of control panel.

Nothing is shown in display control panel and no other Water Heater components are operating.

Control is not receiving 120VAC power.

Is there 120 Volts at the manual switch?

Correct the power supply from the manual switch.

Check the water heater

Turn on the manual power switch inside the

inside power manual switch. water heater case.

Check for 120 volts at the line voltage terminal inside the water heater case.

Correct wiring inside the water heater case using the wiring diagram in this manual.

Nothing is shown on control panel, but water heater is operating.
TEMPERATURE RISE TOO QUICKLY

Occurs when the communication is lost from the control to the display.
Occurs when supply water temperature in heat exchanger rises faster than 2°F per second during the first two minutes the burner is on.

Check for loose connections and proper pin alignment/ engagement on the Control’s plug.
Cycle power off and on using water heater power switch and check for operation.
Automatically resets after a few minutes delay or use manual reset.

Check for continuity on the wire harness from the display to the control panel. See repair parts section for proper replacement part.
Replace with new display module. See repair parts section for proper replacement part.
See the message displayed TEMPERATURE SENSOR and follow procedures for loose connections.

TEMPERATURE SENSOR

Occurs when a temperature sensor has electrically shorted(SHORT) or has become disconnected (OPEN).

Reset using manual. Reset screen on control panel. (Power button)

Check all the temperature readings of the water heater on the DIAGNOSTICS – TEMPERATURES menu to determine if any sensors are currently displayed as SHORT or OPEN.
Check wire harness for loose connections and pin engagement at sensor Connection and Control module.

If problem persists after checking items above, replace Control.

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Bradford White Corporation

Display FLAME FAULT FAN FAULT IGNITION FAULT
GAS VALVE FAULT

Condition

Diagnostic

Occurs when flame is detected when there should be no flame

Reset using manual switch. Reset screen on control panel. (Power button)

Corrective Action(s)
Burner may be operating too hot due to incorrect combustion.
Check for flame at burner via flame current with burner off. Turn off and watch flame through observation port. If flame continues after shutdown, replace gas valve.

Fan is unable to reach required speed or 0 RPM when it is turned off.

Reset using manual switch. Reset screen on control panel. (Power button)

Check wire harness for loose connections and pin engagement at blower connections.
Water heater is in standby mode and fan is not running. If FAN SPEED is not 0 RPM then replace the fan.

Even if water heater went through 8 ignition attempts, but cannot detect flame.

Manual switch Power off and on.

Visual inspection of flue ways often will not be able to diagnose condition.
Check incoming gas pressure with water heater off and at MAX fire. Adjust within limits on rating plate.

Check for vent pipe and intake pipe restrictions or blockage

Check burner fasteners and gaskets

Check air intake pipe and orifice

The Control has detected a problem with its gas valve output circuit

Reset using manual switch. Reset screen on control panel. (Power button)

Check wire harness connections between gas valve and Control.

If lockout reoccurs, replace Gas valve.

Infiniti® GR Tankless Water Heater

Page 60

SECTION 8

Maintenance

8.1 Annual Startup and General Maintenance

Regular Maintenance After the water heater installation is completed, this manual should be placed in safe dry location near the water heater. Maintenance instructions should be carried out by these guidelines annually by a qualified technician.
For maintenance details, please refer to the instructions below.

Periodically

Please check installation location. Please check if water heater casing is closed.
Please check power source.

Monthly

Please check vent pipe. Please check air inlet pipe. Please check relief valve. Please check condensate outlet.

Every 6 Months

Please check water heater piping (gas and water) Please check operate relief valve

No plan for long-term use.

Do not shut the water heater down unless fully drained of all water to prevent damage from freezing.

WARNING

DO NOT store combustible materials, gasoline or any other flammable vapors or liquids near the Water Heater. Remove them immediately or store them other places.

Maintenance procedures [ Periodically ] – Check installation location
To prevent potential severe personal injury, death or substantial property damage, remove all material contaminants. If contaminants are found : Remove products immediately from the area. In order to check the status of Water Heater, call a qualified service technician to inspect the Water Heater for possible damage from acid corrosion.
– Check if WATER HEATER casing is closed. Check if there is any problem with the Water Heater casing and the two upper and lower screws are tightened well. Water Heater casing must be closed while it is running.

– Check power source. Make sure that the power cord is correctly connected. The main power line is connected to the manual switch box inside the Water Heater.
– Check vent pipe. Visually inspect the flue gas vent piping for detecting any signs of blockage, leakage or deterioration of the piping. Please contact a qualified service technician immediately if you find any problem.
– Check air inlet pipe. Visually inspect the air inlet to be sure it is unobstructed. Inspect entire length of air piping for ensuring that piping is intact and all joints are properly sealed. Call your qualified service technician if you notice any problems.
– Check relief valve. Inspect the Water Heater relief valve and the relief valve discharge pipe for any signs of weeping or leakage. If the relief valve often weeps, immediately contact your qualified service technician for inspecting the Water Heater and system.
– Check the condensate outlet. While the Water Heater is running, check the discharge end of the condensate drain tubing. Make sure that no flue gas is escaping from the condensate drain tubing. If flue gas is continuously escaping, it is a serious problem. Call your qualified service technician for inspecting the Water Heater and condensate line. Also, refill the condensate trap if problem persists regularly.
– Visually inspect the vent terminal rodent screen. If clogged with debris, clean the screens or replace it with spare parts.
2″ Screen Vent (1/4″)

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– Cleaning Air Intake Filter – To properly maintain the water heater, you should clean the air intake filter every 3 months. If not, you may encounter combustion issues
To clean air intake filter: 1. Press Power button on the control panel to turn off the water heater. 2. Remove the screws holding the filter screen.

4. Remove the filter from the plastic assembly and clean it with a toothbrush and clean running water. 5. Dry the filter completely then reinsert the filter into the collar and secure with filter screws.
– Cleaning cold water Inlet Filter (Draining the Water Heater) 1. Place a bucket under the appliance to collect the residual water inside the water heater. 2. Press Power button on the front control panel to turn off the electrical power to the water heater. And then turn off the gas valve. 3. Close water supply valve on the inlet to the appliance. If there is no valve, turn off main water valve. 4. Open the hot water faucets completely. 5. Remove the cold water inlet filter allowing the water in the pipes to drain into the bucket.. And then clean it with a toothbrush and clean running water.
6. To refill the water heater, follow the previous steps in reverse.

Infiniti® GR Tankless Water Heater

Page 62

8.1 Annual Startup and General Maintenance (continued)

– Flushing the Water Heater Flushing the Heat Exchanger of the water heater is a complicated procedure and should only be done by an authorized technician or licensed professional. Keep in mind that improper maintenance can void your warranty.

8. Disconnect all hoses. 9. Remove the cold water inlet filter from the water heater
and clean out any residues. 10. Reinsert the filter and ensure the filter cap is securely
tightened.
11. Connect electrical power to the water heater.

1. Disconnect electric power to the water heater. 2. Close the shutoff valves on both hot water outlet and
cold water inlet lines. (V1 & V2) 3. Connect one hose “D1” to the valve “V3” and place
the free end in the bucket. Connect one of the hoses “D3” to the circulation pump outlet and the cold water inlet line at the valve “V4”. Connect other hose “D2” to the circulation pump inlet and place the free end in the
bucket.

Maintenance procedures [Every 6 Months] – Check piping. (gas and water) Visually inspect for leaks around internal water piping. Also inspect external water piping, circulators, relief valve and fittings. Immediately call a qualified service technician to repair any leaks. Leaks must be fixed by a qualified service technician immediately. Failure to comply with this instruction could result in severe personal injury, death or substantial property damage.

– Check relief valve operation
V3

V4

V1

V2

4. Pour the cleaning solution into the bucket. A straight white vinegar solution is recommended. If using a commercial descaling solution refer to the manufacture’s proper dilution ratio. Place the drain hose (D1) and the hose (D2) to the pump inlet into the cleaning solution. 5. Open service valves (V3 & V4) on the hot water outlet and cold water inlet lines. 6. Turn on the circulation pump (Operate the pump and allow the cleaning solution to circulate through the water heater for at least 1 hour at a rate of 4 gallons per minute.) 7. Rinse the cleaning solution from the water heater as follows:
– Remove the free end of the drain hose (D1) from the bucket.
– Close service valve, (V4), and open shutoff valve, (V2). Do not open shutoff valve, (V1).
– Allow water to flow through the water heater for 5 minutes.
– Close shutoff valve (V2).

V3

V4

V1

V2

WARNING
Leaks must be fixed by a qualified service technician immediately. Failure to comply with this instruction could result in severe personal injury, death or substantial property damage. This discharge line must be installed by a qualified heating installer or a service technician.
WARNING
Before proceeding with maintenance, verify that the relief valve has be piped to a safe place, avoiding any possiblity of scalding from hot water.
Before proceeding with maintenance, verify that relief valve outlet has been piped to a safe place of discharge, avoiding any possibility of scalding from hot water.
If water flows freely, release the lever and allow the valve to seat. Watch the end of the relief valve discharge pipe to ensure that the valve does not weep after the line has had time to drain. If the valve weeps, lift the seat again to attempt to clean the valve seat. If the valve continues to weep, contact your qualified service technician for inspecting the valve and system. If water does not flow from the valve even though you have lifted the lever completely, the valve or discharge line may be blocked. Shut down the Water Heater immediately. Call your qualified service technician to inspect the water heater and system.

D1 D2

– Check burner condition
The burner should be cleaned or replaced by a qualified
service technician when needed.
D3

Page 63
SECTION 9

Installation Check

9.1 Quick View
Before Installing – Make sure that there is enough space for installing
water and gas line. – Verify vent/air termination is located as required. – Verify the unit is set up for the gas supply.
Install Water Piping – Water Heater loop piping must be sized to the
minimums listed in the Water Heater manual. Using smaller piping will cause performance problems.
Install Vent & Air Piping – Slide the air inlet pipe and vent pipe into the Water
Heater pipe connector. – Make sure the terminations are placed as required
in the manual and that air intakes are at least 12 inches above normal snow line. – Refer to the material check list in this guide for a list of items needed.
Install Condensate Piping / Tubing & Components – Fill out the material check list in this guide to ensure you have the tubing or PVC pipe and all components needed for the condensate piping. – Connect internal components that are supplied with the Water Heater.
Install Gas Piping – Install a union and shutoff valve.
Wire the Water Heater – Connect power wiring and control wiring per water
heater manual wiring diagram.(Section 4.21)
Start up, Adjust & Test – Follow the Water Heater manual instructions to
clean the system if needed, then fill and check water chemistry.

Bradford White Corporation
9.2 Final check lists
Final check: Installation Conditions. · Is the Water Heater properly mounted on the wall? · Is there space for a drain which is close to the Water Heater? · Are there any combustible materials near the Water Heater and vent pipe? · Is the air supply sufficient for proper operation of the Water Heater? · Are the proper service clearances maintained? · Is the distance between the Water Heater and point of vent termination minimized? · Is the proper distance from windows, doors, and other intake vents maintained?
Final check: Gas pipe installation · Is the gas supply line equipped with a manual shut off valve? · Is the gas supply line a minimum of 1/2 inner diameter? · Is the gas supply line length and diameter adequacy to deliver the required BTU’s? · Has the gas supply line pressure been measured? · Does the supply gas type match the type indicated on the water heater rating plate?
Final check: Air/Vent pipe installation · Has the Water Heater been vented with 3 or 2″ PVC, CPVC, Polypropylene or BH Special Gas Vent (S636 PVC, CPVC) for Category IV appliances in accordance with this manual and/or your local code? · Is the vent termination at least 12 above the exterior grade? · Is the total vent length within the maximum vent length restriction? · Have you checked the air/vent piping for leaks? · Have you properly supported the vent termination? · Are all vent runs properly supported? · Is the vent sloped upward toward the vent termination at a rate of 1/4 per foot (2% grade)
Final check: Condensate drain installation · Have you installed a condensate drain line from the Water Heater to a drain or laundry tub?
Final check : Setting the DIP switches · Are all DIP switches correctly set on the main board?

Infiniti® GR Tankless Water Heater Final Check List (continued)

Page 64

Final check : Connecting the power supply · Check that the power is 120V AC. · Confirm the polarity of the electrical connection.
Final check : Pressure relief valve · Have you installed an approved pressure relief valve on the water heater? · Is the pressure relief valve at least 3/4 in diameter? · Have you installed the pressure relief valve on the hot water outlet pipe near the Water Heater?
Final check : Burner flames · The burner flame should be checked annually for a constant proper blue color. · If the flame does not appear normal, the burner may need to be cleaned. · If the burner needs to be cleaned, it must be performed by a qualified service technician.

Sight Glass Blue flame picture

NOTES:

Bradford White Corporation

BRADFORD WHITE CORPORATION

LIMITED INFINITI TANKLESS® GS OR GR SERIES WATER HEATER WARRANTY

WHAT DOES THIS LIMITED WARRANTY COVER? This limited warranty covers both the heat exchanger and component parts for leakage or other malfunction caused by defects in materials and/or workmanship. It applies to the original consumer purchaser and to any subsequent owner as long as the heater remains installed at its original place of installation and installation is performed by a professional installer.
WHAT DOES THIS LIMITED WARRANTY NOT COVER?** 1. This limited warranty does not cover leakage or other
malfunctions caused by: a) Defective installation, reinstallation at another
location, installation by anyone other than a professional installer, and specifically, any installation which is made: i) in violation of applicable state or local plumbing,
housing or building codes, or ii) without a certified American Gas Association,
ASME, or comparable pressure relief valve, or iii) contrary to the written instructions furnished with
the unit. b) Adverse local conditions, specifically sediment or
lime precipitate in the heat exchanger; corrosive elements in the atmosphere; or water quality contrary to the written requirements furnished with the unit. c) Misuse, specifically operations and/or maintenance contrary to the written instructions furnished with the unit, anode removal (if provided), disconnection, alteration or addition of non-approved components or apparatus, operation at settings other than those set forth on the rating plate, or accidental or other exterior damage. 2. This warranty also does not cover: a) Production of noise, taste, odors, discoloration or rusty water. b) Incidental property damage, loss of use, inconvenience or other incidental or consequential costs. c) Costs associated with the replacement and/or repair of the unit, including: i) any freight, shipping or delivery charges ii) any removal, installation or re-installation charges iii) any material, and/or permits required for
installation, re-installation or repair iv) charges to return the defective heater and/or
component part to the manufacturer.
WHAT IS THE PERIOD OF COVERAGE? This limited warranty runs from date of installation (or without proof of installation, from three (3) months after the date of manufacture) for the period specified on the following table.

FIFTEEN YEAR LIMITED HEAT EXCHANGER WARRANTY A no charge replacement will be provided in the event of a covered failure of the Heat Exchanger.
FIVE YEAR LIMITED PARTS WARRANTY All other parts not referenced above are covered for five years from date of original installation. ————————————————————–Note: Limited heat exchanger warranty fifteen (15) years. Limited parts warranty is five (5) years. A warranty product or part is provided exclusive of labor, freight and/or any installation costs. Any product used for other than a single-family housing unit application will be warranted for only eight (8) years on heat exchanger and five (5) year on parts regardless of any other warranty period specified. All replacement heaters and parts carry the balance of the original warranty, i.e. if an original fifteen (15) year warranted heater develops a leak due to defects in materials/workmanship after only eight (8) years, the replacement unit is warranted for seven (7) years in this example.
WHAT IS THE DURATION OF THE IMPLIED WARRANTY?
ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY IMPOSED ON THE SALE OF THE WATER HEATER UNDER THE LAWS OF THE STATE OF SALE ARE LIMITED IN DURATION TO ONE YEAR FROM DATE OF ORIGINAL INSTALLATION.
HOW DOES STATE LAW RELATE TO THE WARRANTY? Some states DO NOT allow: 1. Limitations on how long an implied warranty
lasts. 2. Limitations on incidental or consequential
damages. Therefore, the above limitations or exclusions may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

**Restrictions are not applicable to implied warranties in California. See “Special State Provisions” on reverse side. 238-54717-00A (06/22)

LIMITED TANKLESS WATER HEATER WARRANTY (CONTINUED)

WHAT WILL WE DO TO CORRECT PROBLEMS? 1. If a defect occurs within the heat exchanger warranty
period, we will: Provide a replacement heat exchanger of our manufacture (or at our option) repair any unit which develops a leak in the heat exchanger within the warranty period. To obtain a replacement, you must forward both the rating plate from the defective unit to us and a copy of the original sales receipt. If government regulations require the replacement heat exchanger to have features not found in the defective heat exchanger, you will be required to pay the difference in price represented by those government required features.
2. If a defect occurs within the parts warranty period, we will: Provide a replacement part (or at our option repair) any part which fails to function within the parts warranty period. To obtain a replacement, you must forward the defective part to us. If government regulations require the replacement part to have features not found in the defective part, you will be required to pay the difference in price represented by those government required features.
We do reserve the right to verify any claims of defect by inspection.

WHAT SHOULD YOU DO TO KEEP THE WARRANTY IN EFFECT? To facilitate warranty assistance, you should: 1. Follow all instructions enclosed with the
product. 2. Retain all bills of sale or receipts for proof of
installation, etc. 3. Contact your installer, dealer or our Warranty
Department as soon as any problem or defect is noticed. 4. When necessary, allow us, or our chosen representative, to inspect the unit. 5. For your reference, fill in the Model and Serial Number found on the units Rating Plate:
Model Number
Serial Number
Date of Installation
Name of Installer

WHAT WILL WE NOT DO?
We will not: 1. Repair or replace any heater or part subject to conditions
outlined in “What Does This Limited Warranty Not Cover?” 2. Reimburse any costs associated with repair and/or replacement. 3. Replace and/or repair any heater without complete model/serial number. 4. Replace any heater without prior receipt of actual rating plate from appliance and copy of original sales receipt.

SPECIAL STATE PROVISIONS For heaters installed in California or Oregon,
paragraphs 2(c) (i) (iv) of the section “WHAT DOES THIS WARRANTY NOT COVER?” does NOT apply.
All other terms and conditions of this warranty
apply as stated.

HOW DO YOU GET WARRANTY ASSISTANCE?
Upon discovering a defect or problem, you should:

References

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