RBI FTII-IOM-17 Finned Copper Tube Gas Boilers Instruction Manual

FTII-IOM-17
82-0253
Finned Copper Tube
Gas Boilers (FB) & Water Heaters (FW)
Boiler Manual
Installation and Operation Instructions

FTII-IOM-17 Finned Copper Tube Gas Boilers

www.ahridirectory.org

WARNING
This manual is intended only for use by a qualified heating installer/technician. Read and follow this manual, all supplements and related instructional information provided with the boiler. Install, start and service the boiler only in the sequence and methods given in these instructions. Failure to do so can result in severe personal injury, death or substantial property damage.

WARNING
Do not use the boiler during construction. Construction dust and particulate, particularly drywall dust, will cause contamination of the burner, resulting in possible severe personal injury, death or substantial property damage. The boiler can only be operated with a dustfree air supply. Follow the instruction manual procedures to duct air to the boiler air intake. If the boiler has been contaminated by operation with contaminated air, follow the instruction manual guidelines to clean, repair or replace the boiler if necessary.

CAUTION
Affix these instructions near to the boiler/water heater. Instruct the building owner to retain the instructions for future use by a qualified service technician, and to follow all guidelines in the User’s Information Manual.

FUTERA II INSTALLATION AND OPERATION INSTRUCTIONS

BEFORE YOU START

This manual covers the application, installation, operation and maintenance of a Futera II Series finned copper heating boiler/water heater.
To obtain the safe, dependable, efficient operation and long life for which this heating boiler/water heater was designed, these instructions must be read, understood and followed.
The Futera II Series finned copper heating boiler/water heaters have been design certified by CSA for use with natural and propane gas under the latest revision of ANSI-Z21.10.3/CSA 4.3, Gas Water Heaters, ANSI-Z21.13/ CSA 4.9, Gas-Fired Low Pressure Steam and Hot Water Boilers. Each unit has been constructed and hydrostatically tested for a maximum working pressure of 160 psi, 1103 kPa in accordance with Section IV of the A.S.M.E. Boiler and Pressure Vessel Code.
All aspects of the boiler/water heater installation must conform to the requirements of the authority having juris-diction, or, in the absence of such requirements, to the National Fuel Gas Code, ANSI Z223.1/NFPA 54-latest revision. Where required by the authority having jurisdiction, the installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1.
In Canada, the installation must be in accordance with the requirements of CSA B149.1 or .2, Installation Code for Gas Burning Appliances and Equipment.
The owner should maintain a record of all service work performed with the date and a description of the work done. Include the name of the service organization for future reference.
Direct all questions to your RBI distributor or contact the RBI Customer Service Department at:

U.S. —
260 North Elm Street
Westfield, MA 01085
Canada —
7555 Tranmere Drive
Mississauga ONT L5S 1L4

Always include the model and serial numbers from the rating plate of the boiler/water heater in question.

RATINGS & CAPACITIES

Before undertaking the installation of the Futera II Series boiler/water heater check the rating plate to ensure that the unit has been sized properly for the job. The “Net Ratings” specify the equivalent amount of direct copper radiation that the unit can supply under normal conditions. Also ensure that the unit has been set up for the type of gas available at the installation site. Other important considerations are the availability of an adequate electrical supply, fresh air for combustion and a suitable chimney or vent system.

BOILER/WATER HEATER LOCATION

1. This boiler/water heater is suitable for indoor and outdoor installations. Locate the boiler/water heater in an area that provides good access to the unit. Servicing may require the removal of jacket panels. Allow the minimum clearances between adjacent construction and the boiler/water heater as listed in Table 1.
   NOTE: Service clearances are not mandatory, but are recommended to ensure ease of service should it be required.
   Table 1
   | Clearance to  Combustibles| Service  Clearance
   ---|---|---
   | in| mm| in| mm
   Top| 24| 610| 30| 762
   Back| 14| 356| 24| 610
   Left Side| 6| 153| 12| 306
   Right Side| 6| 153| 12| 306
   Front| 8| 203| 30| 762

2. An optimum site will be level, central to the piping system, close to a chimney or outside wall and have adequate fresh air for combustion. Ensure that the boiler/water heater is level from front to back and from side to side. Use metal shims to level the boiler/water heater. Electrical and electronic components must also be protected from exposure to water during operation and maintenance. DO NOT install this boiler/water heater in a location that would subject any of the gas ignition components to direct contact with water or excessive moisture during operation or servicing.

3. Ensure that the floor is structurally sound and will support the weight of the boiler/water heater.
   NOTE: The Futera II may be installed directly on combustible flooring, but never on carpeting.

4. Locate the boiler/water heater in an area that will prevent water damage to adjacent construction should a leak occur or during routine maintenance. If such a location doesn’t exist, a suitable drain pan that’s adequately drained must be installed under the unit.

5. DO NOT place this boiler/water heater in a location that would restrict the introduction of combustion air into the unit or subject it to a negative pressure, see “GENERAL VENTING GUIDELINES”.

6. NEVER place this boiler/water heater in a location that would subject it to temperatures at or near freezing. See the “Freeze Protection” section on page 18.

CAUTION: Units installed outdoors MUST be protected from ice and snow accumulation or the unit will be damaged voiding the warranty!
WARNING: Never store combustible materials, gasoline or any product containing flammable vapors or liquids in the vicinity of the boiler/water heater. Failure to comply with this warning can result in an explosion or fire causing extensive property damage, severe personal injury or death!

COMBUSTION AIR & VENTILATION

WARNING: This boiler/water heater must be supplied with combustion air in accordance with Section 5.3, Air for Combustion & Ventilation, of the latest revision of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and all applicable local building codes. Canadian installations must comply with CAN/ CGA B149.1 or .2 Installation Code for Gas Burning Appliances and Equipment, or applicable provisions of the local building codes. Failure to provide adequate combustion air for this boiler/ water heater can result in excessive levels of carbon monoxide which can result in severe personal injury or death!
To operate properly and safely this boiler/water heater requires a continuous supply of air for combustion. NEVER store objects on or around the boiler/water heater!
CAUTION: Combustion air contaminated with fluorocarbons or other halogenated compounds such as cleaning solvents and refrigerants will result in the formation of acids in the combustion chamber. These acids will cause premature failure of the boiler/water heater voiding the warranty!
CAUTION: If the boiler/water heater is operated while the building is under construction it MUST be protected from wood, concrete, sheet rock and other types of dust. Failure to properly protect the unit from construction dust will damage the unit voiding the warranty!
Buildings will require the installation of a fresh air duct or other means of providing make-up air if the intake air option isn’t used. Any building utilizing other gas burning appliances, a fireplace, wood stove or any type of exhaust fan must be checked for adequate combustion air when all of these devices are in operation at one time. Sizing of an outside air duct must be done to meet the requirements of all such devices.
WARNING: Never operate the Futera II in an environment subjected to a negative pressure unless it is Direct Vented. Failure to comply with this warning can result in excessive levels of carbon monoxide causing severe personal injury or death!

All Air From Inside The Building
If the Futera II is to be located in a confined space, the minimum clearances listed in Table 1 must be maintained between it and any combustible construction. When installed in a confined space without the intake air option, Figures 7, 8 and 9, two permanent openings communicating with an additional room(s) are required. The combined volume of these spaces must have sufficient volume to meet the criteria for an unconfined space. The total air requirements of all gas utilization equipment, fireplaces, wood stoves or any type of exhaust fan must be considered when making this determination. Each opening must have a minimum free area of 1 in² /1000 Btu/ hr, 2200 mm² /kW based on the total input rating of ALL gas utilization equipment in the confined area. Each opening must be no less than 100 in², 64,516 mm² in size. The upper opening must be within 12 in, 305 mm of, but not less than 3 in, 76 mm from, the top of the enclosure. The bottom opening must be within 12 in, 305 mm of, but not less than 3 in, 76 mm from, the bottom of the enclosure.

All Air From Outside The Building
When installed in a confined space without utilizing the intake air option two permanent openings communicatingdirectly with, or by ducts to, the outdoors or spaces that freely communicate with the outdoors must be present. Theupper opening must be within 12 in, 305 mm of, but not less than 3 in, 76 mm from, the top of the enclosure. The bottom opening must be within 12 in, 305 mm of, but not less than 3 in, 76 mm from, the bottom of the enclosure.

Where directly communicating with the outdoors or communicating with the outdoors through vertical ducts, each opening shall have a minimum free area of 1 in² /4000 Btu/hr, 550 mm² /kW of the total input rating of all of the equipment in the enclosure.
Where communicating with the outdoors through horizontal ducts, each opening shall have a minimum free area of 1 in² /2000 Btu/hr, 1100 mm² /kW of the total input rating of all of the equipment in the enclosure.
When ducts are used, they must have the same crosssectional area as the free area of the opening to which they connect.
When calculating the free area necessary to meet the make-up air requirements of the enclosure, consideration must be given to the blockage effects of louvers, grills and screens. Screens must have a minimum mesh size of 1/4 in, 6.4 mm. If the free area through a louver or grill is not known, ducts should be sized per Table 2.

Table 2 – Make-up Air Louver Sizing
Required Cross Sectional Area

Input (MBH)| 1/4 in 6.4 mm Wire Screen| 75% Free Area Metal Louvers| 25% Free Area Wooden Louvers
---|---|---|---
| in 2| cm2| in 2| cm2| in 2| cm2
500| 125| 806| 167| 1077| 500| 3226
750| 187| 1206| 250| 1613| 750| 4839
1000| 250| 1613| 333| 2148| 1000| 6452
1250| 313| 2019| 416| 2684| 1250| 8065
1500| 375| 2419| 500| 3226| 1500| 9677
1750| 437| 2819| 583| 3761| 1750| 11,290
1950| 486| 3135| 649| 4187| 1950| 12, 580

Canadian installations must comply with CSA B149.1 when air supply is provided by natural air flow from the outdoors for natural draft, partial fan-assisted, fan-assisted, or power draft-assisted burners, there shall be a permanent air supply opening(s) having a cross-sectional area of not less than 1 in² per 7,000 Btuh (310 mm² per kW) up to and including 1 million Btuh, plus 1 in² per 14,000 Btuh (155 mm² per kW) in excess of 1 million Btuh.

Intake Air Option – General Guidelines
This configuration provides combustion air directly to the boiler/water heater’s air intake using a dedicated pipe when using the direct vent option. The RBI air intake adapter must be fitted to the blower inlet. Combustion air can be drawn in horizontally through the same outside wall which terminates the exhaust gases or vertically through the roof, see Figures 2, 3, 4, 5 & 6.

WARNING: Common intake air systems may be used provided the common duct is sized properly and an intake combustion air damper is installed in the intake air pipe of each heater. Improper installation can result in excessive levels of carbon monoxide which can cause severe personal injury or death!

All joints in metal intake air systems must be secured using corrosion resistant fasteners and sealed using a suitable Silicone caulk. If PVC or CPVC is used, the joints must be cleaned with a suitable solvent and connected using a solvent based PVC cement. The combustion air system MUST be supported by the building structure not the boiler/water heater.
CAUTION: A combustion air damper interlocked with the unit should be installed in the intake air pipe when the infiltration of subfreezing air could occur, otherwise the unit could freeze up voiding the warranty!
Intake Air Option – Vertical Guidelines
The maximum equivalent length for the vertical intake air pipe is 60 ft, 18.3 m. Each 90° elbow and the intake air terminal are equal to 10 linear ft, 3.1 m of pipe.
An approved, nonrestrictive intake air terminal must be used. The intake air terminal must terminate as shown in Figure 5. The penetration point in the roof must be properly flashed and sealed.

Intake Air Option – Horizontal Guidelines
The maximum equivalent length for the horizontal combustion air pipe on installations that used the Direct Vent option is 60 ft, 18.3 m. The maximum equivalent length for the horizontal combustion air pipe on installations that use the Horizontal Power Vent option is 100 ft, 30.5 m. Each 90° elbow and the combustion air terminal are equal to 10 linear ft, 3.1 m of pipe. If horizontal runs exceed 5 ft, 1.5 m they must be supported at 3 ft, 0.9 m intervals with overhead hangers. The certified combustion air terminal from RBI must be used and installed as shown in Figures 3 and 4.

GENERAL VENTING GUIDELINES

WARNING: The vent installation must be in accordance with Part 7, Venting of Equipment, of the National Fuel Gas Code, ANSI Z223.1/NFPA 54- latest revision or applicable provisions of the local building codes. Canadian installations must comply with CAN/CGA B149.1 or .2 Installation Code. See Figure A for added Clarity. Improper venting can result in excessive levels of carbon monoxide which can result in severe personal injury or death!
All vent systems must be fully supported by the building structure and not by the boiler/water heater. Appropriate thimbles and fire-stops must be used where required.
WARNING: Common vent systems must be properly engineered and sized to provide a negative draft of 0.01 to 0.08 in, 0.25 to 2.0 mm W.C. at the flue outlet. Common positive pressure vent systems are not to be used. Improper installation can result in excessive levels of carbon monoxide, which can cause severe personal injury or death!
NOTE: Multi-story, common venting systems shall be in accordance with the National Fuel Gas Code, ANSI Z223.1/ NFPA 54 and/or the CSA B149.1, Natural Gas and Propane Installation Code (Current Editions), local codes and vent manufacturer’s installation instructions. Size the chimney and breeching using generally accepted engineering practices. (Consult factory for vertical heights beyond 60 ft.)
NOTE: A single acting barometric damper must beinstalled directly to the boiler/water heater flue outlet, ifrequired. This does not apply to outdoor units or directvent positive pressure units.
NOTE: Some venting applications may require the stop to be removed for smooth operation. The barometric damper should be located after the flue collector, refer to Figures 2, 7A and 8 for proper location. Be sure that the damper is mounted horizontally (never vertically). Carefully follow the instructions provided with the barometric damper.
In Canada, B149 (7.25 Draft Regulators) states the damper shall be of double- acting type.
WARNING: To avoid spillage into the room of dangerous flue gas containing carbon monoxide, the opening in damper must never face against the flow of flue gas.
WARNING: Boiler/Water Heater shall not be connected to a chimney flue serving a separate appliance designed to burn solid fuel.

VENT SYSTEM OPTIONS

The Futera II may be vented the following ways:

1. Direct Vent, Positive Pressure, Category III uses a vent system certified to UL 1738 for installations in the United States, ULC S636 for installations in Canada. Combustion air is piped from the outdoors to the blower inlet.
2. Side Wall Vent, Positive Pressure, Category III uses a vent system certified to UL 1738 for installations in the United States, ULC S636 for installations in Canada. Combustion air is obtained from the space in which the unit is installed.
3. Horizontal Vent, Negative Pressure, Category I for horizontal vent runs equivalent to more than 60 ft, 18.3 m (use Table 3 for the equivalent lengths per fitting), a dedicated wall mounted power venter must be used. The vent system can be single wall galvanized steel or type B vent pipe. Combustion air is obtained from the space in which the unit is installed or from the outdoors. A power venter including a barometric damper must be installed when the horzontal run is longer than 60 equivalent feet (use Table 3 for the equivalent lengths per fitting).
4. Vertical/Chimney Vent, Negative Pressure, Category I uses an approved metal chimney system or masonry chimney. Combustion air is obtained from the space in which the unit is installed. A barometric damper must be installed near the flue outlet when venting vertically.
5. Outdoor Installation uses the outdoor option kit. Barometric damper is not required.

NOTE: All venting, combustion air material supplied by installer.
WARNING: The maximum equivalent length for the flue outlet vent system for Category III conditions is 60 ft, 18.3 m. Use Table 3 for the equivalent lengths per fitting. Table 3 “Category III Equivalent Length Per Fitting” chart is meant as a guideline for preliminary sizing. If vent length approaches 75% of maximum length listed an engineered vent system calculation must be performed, consult factory.

Figure A – Direct Vent Terminal Clearances

| | Canadian Installations¹| US Installations²
---|---|---|---
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 opened| 6 in (15 cm) for appliances < 10,000 Btuh (3 kW); 12 in (30 cm) for appliances > 10,000 Btuh (3 kW) and < 100,000 Btuh (30 kW); 36 in (91 cm) for appliances > 100,000 Btuh (30 kW)| 6 in (15 cm) for appliances < 10,000 Btuh (3 kW); 9 in (23 cm) for appliances > 10,000 Btuh (3 kW) and < 50,000 Btuh (15 kW); 12 in (30 cm) for appliances >  50,000 Btuh (15 kW)
C =| Clearance to permanently closed window| Per local installation codes
D =| Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 ft (61 cm) 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| 3 ft (91 cm) within a height of 15 ft (4.6m)|
I =| Clearance to service regulator vent outlet| 3 ft (91 cm)
J =| Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance| 6 in (15 cm) for appliances < 10,000 Btuh (3kW); 12 in (30 cm) for appliances > 10,000 Btuh (3 kW) and _< 100,000 Btuh (30 kW); 36 in (91 cm) for appliances > 100,000 Btuh (30 kW)| 6 in (15 cm) for appliances < 10,000 Btuh (3kW); 9 in (23 cm) for appliances > 10,000 Btuh (3 kW) and <_ 50,000 Btuh (15 kW); 12 in (30 cm) for appliances > 50,000 Btuh (15 kW)

Figure A – Direct Vent Terminal Clearances – Concluded

K =| Clearance to a mechanical air supply inlet| 6 ft (1.83 m)| 3 ft (91 cm) above if within 10 ft (3 m) horizontally
---|---|---|---
L =| Clearance above paved sidewalk or paved driveway located on public property| 7 ft (2.13 m)†| Vents for Category II and IV appliances cannot be located above public walkways or other areas where condensate or vapor can cause a nuisance or hazard
M =| Clearance under veranda, porch, deck, or balcony| 12 in (30 cm)‡| Per local installation codes
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
NOTES:
1) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code
2) In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
3) If locally adopted installation codes specify clearances different than those illustrated, then the most stringent clearances must prevail.

Figure A – Other Than Direct Vent Terminal Clearances

| | Canadian Installations¹| US Installations²
---|---|---|---
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 opened| 6 in (15 cm) for appliances < 10,000 Btuh (3 kW); 12 in (30 cm) for appliances > 10,000 Btuh (3 kW) and < 100,000 Btuh (30 kW); 36 in (91 cm) for appliances > 100,000 Btuh (30 kW)| 4 ft (1.2 m) below or to side of opening; 1 ft (300 mm) above opening
C =| Clearance to permanently closed window| Per local installation codes
D =| Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 ft (61 cm) 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| 3 ft (91 cm) within a height of 15 ft (4.6m)|
I =| Clearance to service regulator vent outlet| 3 ft (91 cm)
J =| Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance| 6 in (15 cm) for appliances < 10,000 Btuh (3kW); 12 in (30 cm) for appliances > 10,000 Btuh (3 kW) and < 100,000 Btuh (30 kW); 36 in (91 cm) for appliances > 100,000 Btuh (30 kW)| 4 ft (1.2 m) below or to side of opening; 1 ft (300 mm) above opening

Figure A – Other Than Direct Vent Terminal Clearances – Concluded

K =| Clearance to a mechanical air supply inlet| 6 ft (1.83 m)| 3 ft (91 cm) above if within 10 ft (3 m) horizontally
---|---|---|---
L =| Clearance above paved sidewalk or paved driveway located on public property| 7 ft (2.13 m)†| Vents for Category II and IV appliances cannot be located above public walkways or other areas where condensate or vapor can cause a nuisance or hazard
M =| Clearance under veranda, porch, deck, or balcony| 12 in (30 cm)‡| Per local installation codes
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
NOTES:
1) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code
2) In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
3) If locally adopted installation codes specify clearances different than those illustrated, then the most stringent clearances must prevail.

Table 3 – Category III Equivalent Length Per Fitting

Model/Outlet| K| Equivalent Feet of Straight Pipe (ft) – Futera II Series
---|---|---
500
6″| 750
8″| 1000
9″| 1250
10″| 1500
10″| 1750
12″| 2000
12″
Standard Tee| 1.25| 25 ft| 35 ft| 35 ft| 40 ft| 40 ft| 40 ft| 40 ft
Boot Tee| 0.65| 15 ft| 15 ft| 15 ft| 20 ft| 20 ft| 20 ft| 20 ft
Cap – Low Res (UL)| 0.50| 10 ft| 15 ft| 15 ft| 15 ft| 15 ft| 15 ft| 15 ft
45° w/Bird Screen| 0.40| 10 ft| 10 ft| 10 ft| 15 ft| 15 ft| 15 ft| 15 ft
Elbow – 90°| 0.38| 10 ft| 10 ft| 10 ft| 15 ft| 15 ft| 15 ft| 15 ft
Elbow – 45°| 0.15| 5 ft| 5 ft| 5 ft| 7 ft| 7 ft| 7 ft| 7 ft

*Equivalent lengths based on listed K-Factors

DIRECT VENT,
POSITIVE PRESSURE, CATEGORY III
In this configuration the boiler/water heater blower is used to push the flue products to the outdoors while drawing combustion air from the outdoors. The equivalent length of the vent system must not exceed 60 ft., 18.3 m. The Intake Air Option instructions under the “COMBUSTION AIR & VENTILATION” section must be followed! The vent system must be sized per Figure 2, Outlet Sizes.

Horizontal Direct Vent Systems – Figures 3 & 4
The vent materials used in horizontal vent systems must be certified to UL 1738 for installations in the United States, ULC S636 for installations in Canada. The certified vent terminal from RBI must also be used.
The maximum equivalent length for the horizontal vent pipe is 60 ft, 18.3 m. If any part of a single wallmetal vent system passes through an unheated space, it must be insulated with insulation rated for 400°F, 204°C. Structural penetrations must be made using approved fire-stops. For best results, horizontal ventsystems should be as short and straight as possible.

The vent system must be both gas tight and watertight. All seams and joints in metal pipes must be joined and sealed in accordance with the vent system manufacturer’s instructions.
When horizontal vent runs exceed 5 ft, 1.5 m they must be supported at 3 ft, 0.9 m intervals with overhead hangers.
The vent system must be pitched down, toward the vent terminal, 1/4 in/ft, 20 mm/m. If any part of a single wall metal vent system passes through an unheated space it must be insulated with insulation rated for 400°F, 204°C. Horizontal vent systems shall terminate at least 4 ft, 1.2 m below, 4 ft, 1.2 m horizontally from or 1 ft, 0.30 m above any door, window or gravity air inlet into any building. It must not terminate less than 4 ft, 1.2 m horizontally from, and in no case above or below, unless a 4 ft, 1.2 m horizontal distance is maintained, from electric meters, gas meters, regulators and relief equipment and not less than 7 ft, 2.1 m from any adjacent public walkway.
The bottom of the vent terminal(s) shall be located at least 5 ft, 1.5 m above the air intake terminal(s) unless there is a minimum 5 ft, 1.5 m horizontal separation between them. Avoid terminal locations likely to be affected by winds, snowdrifts, people and pets. Protect building materials and vegetation from degradation caused by the flue gases.
Vertical Direct Vent Systems – Figure 5
The maximum equivalent length for the vertical pipe is 60 ft, 18.3 m. If any part of a single wall metal vent system passes through an unheated space, it must be insulated with insulation rated for 400°F, 204°C. Structural penetrations must be made using  approved fire-stops. An approved nonrestrictive intake air teminal must be used. The top of a vertical vent system must extend at least 5 1/2 ft, 1.7 m above the roof surface and maximum snow line that it passes through, 4 ft, 1.2 m above the intake air terminal, see Figure 5.
In addition the vent system must conform to the dimensions shown in Figure 5. The penetration point in the roof must be properly flashed and sealed.
The vent system must be gas tight. All seams and joints in metal pipes must be joined and sealed in accordance with the vent system manufacturer’s instructions.
Combination Direct Vent Systems – Figure 6
The boiler/water heater can be vented vertically with the intake air piped horizontally through an outside wall. Follow the instructions in the Intake Air Option – Horizontal Guidelines on page 5. Also follow the general instructions in the “COMBUSTION AIR & VENTILATION” and “GENERAL VENTING GUIDELINES” sections.

Figure 3 – Horizontal Air Intake and Venting for a Single Direct Vent System

WARNING: When running horizontal combustion air and venting for single or multiple units, exhaust and combustion air terminals must be installed on the same plane (outside wall) in order to prevent pressure differences due to prevailing winds. In cold climates, double-wall or insulated inlet pipe recommended to prevent condensation.

Figure 4 – Horizontal Air Intake and Venting for Multiple Direct Vent Systems

Figure 5 – Vertical Air Intake and Venting for Direct Vent System

Figure 6 – Combination Direct Vent Systems

SIDE WALL VENT, POSITIVE PRESSURE, CATEGORY III

In this configuration the boiler/water heater blower is used to push the flue products horizontally to the outdoors, see Figure 7. The air for combustion is taken from the space in which the unit is installed. The applicable instructions under the “COMBUSTION AIR & VENTILATION” section must be followed! The vent guidelines under the Horizontal Direct Vent Systems section must also be followed.

HORIZONTAL VENT, NEGATIVE PRESSURE, CATEGORY I
In this configuration a wall-mounted power venter must beused to pull the flue products horizontally from the unit andvent them to the outdoors, see Figures 3, 4 & 7A. The air for combustion is taken from the space in which the unit isinstalled, or from the outdoors. The applicable instructions under the “COMBUSTION AIR & VENTILATION” section must be followed!

To maximize the performance of single wall sheet metal vent systems locate 90° elbows as far from the boiler as possible and from one another. For best results, horizontal vent systems should be as short and straight as possible.
When horizontal vent runs exceed 5 ft, 1.5 m they must be supported at 3 ft, 0.9 m intervals with overhead hangers. The vent system must be pitched down, toward the vent terminal, 1/4 in/ft, 21 mm/m. If any part of a single wall metal vent system passes through an unheated space it must be insulated with insulation rated for 400°F, 204°C.
Horizontal vent systems shall terminate at least 4 ft, 1.2 m below, 4 ft, 1.2 m horizontally from or 1 ft, 0.30 m above any door, window or gravity air inlet into any building. It must not terminate less than 4 ft, 1.2 m horizontally from, and in no case above or below, unless a 4 ft, 1.2 m horizontal distance is maintained, from electric meters, gas meters, regulators and relief equipment and not less than 7 ft, 2.1 m from any adjacent public walkway.The bottom of the vent terminal(s) shall be located at least 5 ft, 1.5 m above the air intake terminal(s) unless there is a minimum 5 ft, 1.5 m horizontal separation between them. Avoid terminal locations likely to be affected by winds, snowdrifts, people and pets. Protect building materials and vegetation from degradation caused by the flue gases.

To determine the appropriate power venter for the boiler/water heater, see Table 4. Follow the power venter manufacturer’s installation instructions.

Table 4 – Power Venter Sizes

VERTICAL/CHIMNEY VENT, NEGATIVE PRESSURE, CATEGORY I

The Futera II is listed as a Category I appliance when vented vertically into a listed metal chimney system or properly sized masonry chimney, Figures 8 & 9. The chimney must provide a negative pressure of 0.01 to 0.08 in, 0.25 to 2.0 mm WC at the boiler/water heater flue collar with the unit running. A barometric damper must be attached directly to the flue collar increaser as shown.
Multiple Futera II’s can be vented into a single vertical chimney provided that the breeching and chimney are properly sized per the latest revision of the National Fuel Gas Code, ANSI Z223.1.
When more than one appliance is connected to the same chimney flue, the flue must be large enough to safely vent the combined output of all of the appliances.

WARNING: If an appliance using any type of a mechanical draft system operating under positive pressure is connected to a chimney flue, never connect any other appliances to this flue. Doing so can result in excessive levels of carbon monoxide which can cause severe personal injury or death!

Chimney Inspection & Sizing
A thorough inspection of the masonry chimney must be performed to ensure that the chimney is clean, properly constructed and properly sized. Exterior masonry chimneys should not be used unless properly lined to prevent condensation and draft problems. Table 5 lists the mimimum riser connection diameters, negative pressure required for the boiler/water heater.

Table 5 – Minimum Riser Connection, Negative
Pressure

Note: Vent system must be sized per tables contained in NFPA 54 or an engineered system.

Vent Connections
Locate the boiler/water heater as close to the chimney as possible. Use the shortest, straightest vent connector possible for the installation. If horizontal runs exceed 5 ft, 1.5 m they must be supported at 3 ft, 0.9 m intervals with overhead hangers. Use a type B, single wall stainless or single wall galvanized steel vent pipe the same diameter as the flue collar to connect the boiler/water heater to a masonry chimney, see Figure 2. When using a listed metal chimney system use the appropriate vent connector.
The vent connector should be sloped up toward the chimney at a minimum rate of 1/4 in/ft, 21 mm/m. On masonry chimneys the connector must terminate flush with the inside of the chimney flue, Figure 9. Fasten each single wall vent connection with at least 3 corrosion resistant sheet metal screws.
Always provide a minimum clearance of 6 in, 152 mm between single wall vent pipe and any combustible materials. Type B1 vent may be used, clearance between it and any combustible material must be as listed.
WARNING: Failure to maintain minimum clearances between vent connectors and any combustible material can result in a fire causing extensive property damage, severe personal injury or death!

Figure 7 – Side Wall Venting, Positive Pressure

Figure 7A – Power Venting, Negative Pressure

Figure 8 – Vertical Venting with a Metal Chimney System

Figure 9 – Vertical Venting using a Masonry Chimney

OUTDOOR VENTING
When installed outdoors the Futera III must be fitted with the factory supplied outdoor hood, air intake adapter with filter and exhaust terminal, see Figure 7A. Multiple units must be spaced per Figure 7B.
The boiler/heater must be at least 2 ft, .62 m from any door, window or gravity air inlet into any building and at least 3 ft, 1 m from any overhang unless local codes dictate differently.

Avoid locations where wind deflection off of adjacent walls, buildings or shrubbery might cause a downdraft. The unit(s) shouild be located at least 3 ft, 1 m from structures. Outdoor installations are not recommended in areas where the danger of snow blockage exists.
CAUTION: Do not place the boiler/water heater in a location that would subject it to runoff from adjacent buildings or damage may occur voiding the warranty!

COMMON VENT SYSTEMS

If an existing boiler/water heater is removed from acommon venting system, the common venting system maythen be too large for the proper venting of the remaining appliances connected to it. At the time of removal of an existing boiler/water heater, the following steps shall befollowed with each appliance remaining connected to the common venting system placed in operation, while theother appliances remaining connected to the commonventing system are not in operation.

a) Seal any unused openings in the common venting system.
b) 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.
c) 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 exhaust, so they will operate at maximum speed. Do not operate a summer exhaust fan for a boiler installation. Close fireplace dampers.
d) Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so appliance will operate continuously.
e) Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar or pipe.
h) After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-burning appliance to their previous condition of use.
g) Any improper operation of the common venting system should be corrected so the installation conforms with the National Fuel Gas Code, ANSI Z223.1/NFPA 54. When resizing any portion of the common venting system, the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Appendix F in the National Fuel Gas Code, ANSI Z223.1/ NFPA 54 and or CAN/CGA B149 Installation Codes.

GENERAL PIPING REQUIREMENTS

CAUTION: Improper piping of this boiler/water heater will void the manufacturer’s warranty and can cause boiler failure resulting in flooding and extensive property damage! Excessive water hardness causing scaling in the copper heat exchanger tubes is NOT covered under the manufacturer’s warranty. Excessive pitting and erosion of the internal surface of the copper heat exchanger tubes is NOT covered under the manufacturer’s warranty if the result of high water flow rates, see Table 5. Return water temperatures below 125°F, 52°C will result in heat exchanger damage from excessive condensation voiding the manufacturer’s warranty, see Primary / Secondary Piping, Figure 13.
NOTE: Shut off valves and unions should be installed at the inlet and outlet connections of the boiler/hot water heater to provide for isolation of the unit should servicing be necessary.

Freeze Protection
This boiler/water heater is CSA designed certified for out- door installation. Outdoor installations in areas where the danger of freezing exists are not recommended unless proper freeze protection is provided. The following precautions MUST be observed:

1. A continuous flow of water through the unit MUST be maintained! The pump responsible for flow through the boiler/water heater must run continuously!
2. A propylene glycol/water mixture suitable for the minimum temperature that the unit will be exposed to must be used. The pump must be capable of producing a minimum of 15% more flow and overcoming a 20% increase in head loss. Domestic water systems must be isolated from the water heater by the use of a heat exchanger or other approved method.
3. If the unit must be shut off for any reason the electric, gas and water supplies MUST be shut off and the unit and its pump completely drained.

CAUTION: Improper outdoor installation of this unit can cause boiler failure voiding the manufacturer’s warranty!
For systems requiring glycol for freeze protection use a glycol/ water mix that prevents foaming. Air entrapped within foam significantly decreases heat transfer and can result in damage to the heat exchanger. Products such as DOWFROST, DOWTHERM, UCARTHERM or an equivalent product must be used to ensure proper protection to the boiler.

The water used for dilution of concentrated heat transfer fluids must be distilled, de-ionized, or equivalently clean as stated above. De-ionized water by itself can be aggressive towards many metals, but is perfectly safe when used for dilution of DOWFROST, DOWTHERM or UCARTHERM as specified by the manufacturer.

Relief Valve
Pipe the discharge of the pressure relief valve as shown in Figure 12.
WARNING: Never install any type of valve between the boiler/water heater and the relief valve or an explosion causing extensive property damage, severe personal injury or death may occur!

Flow Switch
The flow switch is provided to prove flow is present through the boiler. The temperature rise across the primary heat exchanger must never exceed 35°F, 19.4°C.
CAUTION: Failure to properly install the flow switch may result in damage to the boiler/water heater heat exchanger voiding the warranty!

HEATING SYSTEM PIPING

General Piping Requirements
All heating system piping must be installed by a qualified technician in accordance with the latest revision of the ANSI/ASME Boiler and Pressure Vessel Code, Section IV, and ANSI/ASME CSD-1, Standard for Controls and Safety Devices for Automatically Fired Boilers. All applicable local codes and ordinances must also be followed. A minimum clearance of 1 in, 25 mm must be maintained between heating system pipes and all combustible construction. All heating system piping must be supported by suitable hangers not the boiler. The thermal expansion of the system must be considered when supporting the system. A minimum system pressure of 12 psig, 82.7 kPa must be maintained.

Heating Boiler Piping Connections
The supply and return connections should be sized to suit the system, see Table 6.
Table 6 – Supply & Return Pipe Sizing

Pump Requirements
This low mass boiler requires a continuous minimum water flow for proper operation. The system pump must be sized to overcome the head loss of the boiler and the heating system in order to achieve the required temperature rise. Table 7 provides the heat exchanger pressure drop and temperature rise figures. The temperature rise across the boiler must never exceed 35°F, 19.4°C. The adjustable pump delay turns the pump on each time the burner fires and runs the pump for 6 to 600 seconds after the call for heat is satisfied.
CAUTION: A temperature rise outside of the range listed in Table 7 indicates that the flow rate through the heat exchanger is incorrect which will damage the heat exchanger voiding the warranty! The maximum allowable temperature rise is 35°F, 19.4°C.
The maximum allowable flow rate through a Futera II boiler is 97 GPM, 6.1 L/s on 500 through 1000 models and 136 GPM, 8.6 L/s for 1250 through 1950 models. The Cupro-Nickel heat exchanger allows for 108 GPM, 6.8 L/s on 500 through 1000 models and 151 GPM, 9.5 L/s on 1250 through 1950 models.

Table 7 – Temperature Rise

| ∆T = 20°F| | ∆T = 11.1°C|
---|---|---|---|---
Model| Flow Rate| Pres. Drop| Flow Rate| Pres. Drop
Number| GPM| Ft| L/s| kPa
500| 42.5| 0.53| 2.7| 1.5
750| 63.8| 1.57| 4.0| 4.6
1000| 85.0| 3.44| 5.4| 10.1
1250| 106.3| 2.11| 6.7| 6.2
1500| 127.5| 3.57| 8.0| 10.5
| ∆T = 25°F| | ∆T = 13.9°C|
Model Number| Flow Rate GPM| Pres. Drop Ft| Flow Rate L/s| Pres. Drop kPa
500| 34.0| 0.35| 2.1| 1.0
750| 51.0| 1.04| 3.2| 3.1
1000| 68.0| 2.27| 4.3| 6.7
1250| 85.0| 1.40| 5.4| 4.1
1500| 102.0| 2.36| 6.4| 7.0
1750| 119.0| 3.67| 7.5| 10.8
1950| 132.6| 5.14| 8.4| 15.1
| ∆T = 30°F| | ∆T = 16.7°C|
Model| Flow Rate| Pres. Drop| Flow Rate| Pres. Drop
Number| GPM| Ft| L/s| kPa
750| 42.5| 0.70| 2.7| 2.2
1000| 56.7| 1.60| 3.6| 4.8
1250| 70.8| 1.00| 4.5| 2.9
1500| 85.0| 1.70| 5.4| 5.0
1750| 99.2| 2.60| 6.3| 7.7
1950| 110.5| 3.70| 7.0| 10.8
| ∆T = 35°F| | ∆T = 19.4°C|
Model| Flow Rate| Pres. Drop| Flow Rate| Pres. Drop
Number| GPM| Ft| L/s| kPa
750| 36.4| 0.60| 2.3| 1.6
1000| 48.6| 1.20| 3.1| 3.6
1250| 60.7| 0.70| 3.8| 2.2
1500| 72.9| 1.30| 4.6| 3.7
1750| 85.0| 2.00| 5.4| 5.8
1950| 94.7| 2.80| 6.0| 8.1

Low Water Cutoff
If a boiler is installed above any radiation elements it must be fitted with a low water cutoff device.
Refer to the wiring diagram supplied with the boiler/water heater for proper wiring connections.

Expansion Tank & Air Separator
An expansion tank or other means to control thermalexpansion must be installed in the heating system. An expansion tank must be installed close to the boiler on the suction side of the pump. An air scoop and automatic air vent must also be installed to eliminate air trapped in the system.

Primary/Secondary Piping
Boilers connected to heating systems using zone valves, zone pumps, or systems that have excessive flow rates or return water temperatures less than 125°F, 52°C must be isolated from these systems to protect the boiler. Figure 13, shows a typical primary/secondary piping system. A dedicated pump is used to maintain a constant water flow through the boiler. This boiler pump is sized to overcome the head loss of the boiler and near-boiler piping system while supplying the flow rate required to maintain the desired temperature rise across the boiler heat exchanger. The system pump is sized to provide the required flow to the heating system. The boiler piping connections to the heating system piping must be a maximum 10X pipe diameters between centers to ensure zero pressure drop in the primary system. Flow must be properly accounted for in the design of primary/secondary systems. In order to prevent boiler(s) short cycling the system flow must be equal to or higher than the boiler(s) local flow.

Low Return Water Temperatures
To prevent the problems associated with condensation of the products of combustion due to low return water temperatures a primary/secondary piping system with a bypass and bypass valve must be installed, see Figure 14 and 14A. The bypass and bypass valve must be sized the same as the secondary piping. A balancing valve must also be installed in the supply side of the secondary piping downstream of the bypass. The balancing valve should be adjusted to divert some of the heated discharge water into the return water until the required inlet water temperature is achieved. The primary and secondary pumps should be sized to provide the required flow through each system. The secondary piping connections to the primary system piping must not be more than 10X pipe diameters apart to ensure zero pressure drop in the primary system, see Figure 14.

Multiple Boiler Systems
Systems using multiple boilers can also be installed using a primary/secondary manifold system, Figure 15.

Piping For Use With Cooling Units
The boiler, when used in connection with a refrigeration system, must be installed so the chilled medium is piped in parallel with the boiler. Appropriate valves must be used to prevent the chilled water from entering the boiler.
When a boiler is connected to a heating coil that may be exposed to refrigerated air from an air handling device, the piping system must be equipped with flow-control valves or some other automatic means of preventing gravity circulation of the boiler water during the cooling cycle.

NOTES:

1. For pump selection consult factory.
2. Boiler pump sized to boiler and thermostatic 3-way valve design flow requirements.
3. Boiler circuit piping must be sized large enough to handle maximum flow through unit.
4. All boilers furnished with factory mounted outlet water temperature gauge.
5. Boiler pump purging required. Use terminals supplied.
6. Valve is precalibrated for 140°F return temperature.

Notice: These drawings show suggested piping configuration and valving.
Check with local codes and ordinances for specific requirements.

NOTES:

1. Boiler circuit piping must be large enough to handle maximum flow through unit.
2. Boiler pump sized to boiler design flow requirements.
3. All boilers furnished with factory mounted outlet water temperature gauge.
4. Boiler pump purging required. Use terminals supplied.
5. Secondary loop pipe diameter must be sized large enough to handle maximum flow through all units.

Notice: These drawings show suggested piping configuration and valving.
Check with local codes and ordinances for specific requirements.

DOMESTIC WATER SUPPLY PIPING

CAUTION: Proper controls must be used to prevent water supplied for domestic use from exceeding 130°F, 54°C or a scald injury will occur! When higher water temperatures are required for appliances such as a dishwasher, a mixing valve or some other tempering means must be installed. Households with small children may require water temperatures less than 120°F, 49°C. Local codes must be complied with!

General Piping Requirements
Ensure that the water heater is equipped with bronze headers. Piping and components connected to the water heater must be suitable for use with potable water. The water heater must not be connected to any heating system piping or components previously used with a non-potable water heating appliance. No toxic chemicals, such as those used for boiler treatment, are to be introduced into the potable water used for space heating. If a hot water storage tank is used in the system it must be equipped with a temperature and pressure relief valve that complies with ANSI Z21.22 or CAN-4.4 and CAN-4.6.
NOTE: The storage tank must be located as close to the water heater as possible to prevent excessive head loss which will reduce flow.
Water Chemistry
The required temperature rise across the water heater is based on water having a hardness between 8 and 18 grains per gallon with a level of dissolved solids not exceeding 350 ppm. Water having a hardness less than 8 grains can cause excessive corrosion of the heat exchanger. Water that has a hardness greater than 18 grains per gallon and/or a level of dissolved solids exceeding 350 ppm will require a recalculation of the pump size and temperature rise.
A cupro-nickel heat exchanger may also be required. The manufacturer should be consulted when these water conditions are encountered. See Table 8.
CAUTION: The maximum allowable flow rate through a Futera II water heater is 97 GPM, 6.1 L/s on 500 through 1000 models and 136 GPM, 8.6 L/s for 1250 through 1950 models. The Cupro-Nickel heat exchanger allows for 108 GPM, 6.8 L/s on 500 through 1000 models and 151 GPM, 9.5 L/s on 1250 through 1950 models. See Table 9.

RBI water heaters are designed to run scale free. Due to the extreme variables of water conditions world wide it is necessary to consider pH values and water hardness in relationship to scaling. It is crucial to consider these two variables when making heat exchanger and pump selection. If local water conditions are extreme, follow the guidelines in the Heat Exchanger Selection Table (Table 8) and the Pumping Performance Table (Table 9). Scale free operation can be achieved by using water with a hardness between 8 and 18 and by maintaining the pH between 5 and 9. Follow the conditions listed under NORMAL in the table. In some areas of the country additional precautions must be observed due to unusual characteristics of the local water supply. Call the nearest RBI representative for details.

To properly size the pump a grain hardness and pH test must be taken at the installation site before order is placed. Proper pump sizing will improve heater performance and help ensure heater longevity.

Table 8 – Futera II Heat Exchanger Selection

Table 9 – Futera II Pumping Performance Requirement

Expansion Tank
An expansion tank or other means to control thermal expansion must be installed in the water heating system if back flow prevention devices are installed.

Pump Requirements
This low-mass water heater requires a continuous minimum water flow for proper operation.
Table 9 provides the heat exchanger pressure drop chart and temperature rise table.
The temperature rise across the water heater must never exceed 35°F, 19.4°C.

Cold Water Supply
The cold water supply must be piped to the water heater’s outlet piping between the water heater and the hot water storage tank. This will prevent untempered water from entering the water heater, see the Temperature Rise Control section below. Two typical water heating systems are shown in Figures 16 & 17.

Temperature Rise Control
Water returned to the water heater inlet must not be less than 125°F, 52°C or excessive condensation of the products of combustion will damage the water heater voiding the warranty. The method outlined below can be employed to prevent this condition from occurring.
A balancing valve should be installed on the outlet side of the water heater for purposes of adjusting the flow rate through the heat exchanger. Thermometers are installed on both the inlet and outlet of the water heater for determining the temperature rise through the unit.
The proper velocity through the water heater must be maintained in accordance with Table 9 for efficient operation and long life. If the temperature rise through the water heater is lower than recommended the water velocity is too high. Premature erosion of the heat exchanger will occur. Conversely, if the temperature rise is higher than recommended in Table 9 the flow rate is too low. Scaling and softening of the heat exchanger will occur.
Thermostatic Mixing Valve – Water Above 140°F, 60°C Water can be stored at temperatures above 140°F, 60°C provided that a thermostatically controlled mixing valve is used to temper the hot water to an acceptable temperature before it’s supplied for domestic use.
The mixing valve MUST be set to prevent a scald injury from occurring, see the caution against scalding.
Storage of water for domestic use above 140°F, 60°C will provide an increased quantity of tempered water and help prevent the growth of water born bacteria.

NOTES:

1. Optional cold water make up and recirculation line location.

2. When using intermittent pump and pump delay, locate remote aquastat well in lower 1/3 of tank. Install aquastat with heat sensing compound.

3. Thermal expansion tank may be required, check local codes.

4. When using optional factory mounted pump, max pipe length 30 ft. total, 6-90° elbows, full pipe size.

5. CAUTION: MEASURE WATER HARDNESS AND pH AT JOB SITE.
   The pH and water hardness must be measured before selecting heat exchanger and pump. Consult the Heat Exchanger Graph and Pumping Performance Table before making selection.

6. Common piping must be sized for maximum combined heater flow.

7. Hot water tanks should be equipped with a combination temperature & pressure relief valve.

8. MA Code requires an 1/8 in. hole in check valve to compensate for thermal expansion.

9. Boilers may require a mixing application in order to prevent flue gas condensation and premature failure caused by fireside corrosion. (Figure 14A) – “Adjustments Procedure To Maintain Inlet Temperature Above Dew-point.”

10. A thermostatic mixing valve may be required at the outlet of the tank in order to limit the mixed water to a desirable temperature helping to prevent scalding and injury. Consult local codes.

Notice: These drawings show suggested piping configuration and valving.
Check with local codes and ordinances for specific requirements.

GAS SUPPLY PIPING

WARNING: Check the boiler/water heater rating plate to make sure that the boiler/water heater is for the type of gas that will be used. If it isn’t, do not connect the boiler/water heater to the gas supply. Gas supply piping must be in accordance with the National Fuel Code, ANSI Z223.1-latest revision or applicable provisions of the local building codes. Canadian installations must comply with CAN/CGA B149.1 or .2 Installation Code. Failure to comply with this warning can result in extensive property damage, severe personal injury or death!
The Futera II comes from the factory ready to be piped to the gas supply. If for any reason the boiler/water heater is not for the type of gas available at the installation site, call your RBI representative to resolve the problem.
NOTE: A minimum gas supply pressure of 5 in, 127 mm W.C. natural or 11 in, 279 mm WC propane and maximum 14 in, 356 mm WC natural or propane, must be available at the safety shutoff valve inlet with the unit(s) operating, and not to exceed (1.0 in WC) drop when firing from minimum input to full load of the gas supply line and all appliances running.
Do not size the gas supply line nominal iron pipe size based only on the boiler gas inlet connection size. The gas supply line (feed) to the boiler gas inlet connection must be designed per an engineered method and utilizing (Table 10) to ensure that the gas supply piping is sized properly. Do not neglect the pressure drop due to pipe fittings. (Table 10) should be used in conjunction with (Table 11) to ensure that the gas supply piping has the capacity to meet the demand. If more than one appliance is supplied by the same supply pipe, the piping must be sized based on the maximum possible demand.
Figure 18 depicts the proper way to connect the boiler/ water heater to the gas supply piping. The manual shut- off valve MUST be installed in the supply piping. It should be installed 5 ft, 1.5 m above the floor where required by local codes. Provide a sediment trap at the bottom of the vertical section of the gas supply pipe upstream of the gas controls.
A ground joint union should be installed between the boiler gas controls and the supply piping. Each of these items are needed to ensure long life and ease of servicing. Always use a pipe sealant that is suitable for use with LP gas.

Table 10 – Gas Pipe Capacity
Maximum pipe capacity in ft³/hr based on 0.60 specific gravity gas at a pressure of 0.5 psig or less and a 0.3″ WC pressure drop.

Maximum gas volume of pipe, (ft3/hr)
1″| 520| 350| 285| 245| 215| 195| 170| 150| 120
1 1/4″| 1050| 730| 590| 500| 440| 400| 350| 305| 250
1 1/2″| 1600| 1100| 890| 760| 670| 610| 530| 460| 380
2″| 3050| 2100| 1650| 1270| 1270| 1150| 990| 870| 710

Note: Multiply the gas volume by 0.62 for propane flow capacity in ft³/hr Multiply the propane flow capacity by 2500 Btu/ft³ to determine the propane Btu/hr capacity for a given pipe size and length.

Table 11 – Equivalent Pipe Length

Equivalent pipe length, (ft)
1″| 2.6| 5.2| 0.6| 1.5
1 1/4″| 3.5| 6.9| 0.8| 1.9
1 1/2″| 4.0| 8.0| 0.9| 2.3
2″| 5.2| 10.3| 1.2| 3.0

Notes:

1. For flow through branch.
2. For flow at full open.

Figure 18 – Gas Supply Piping

CAUTION: Always use a wrench on the gas valve body when making gas connections to it. Never over-tighten the piping entering the gas valve body or gas valve failure may result!
When applicable, provisions for vent, bleed and gas relief lines must be made in accordance with the latest revision of ANSI Z223.1/NFPA 54.
Safe lighting and other performance criteria were met with the gas manifold and control assembly provided on the boiler. All gas connections MUST be leak tested before putting the boiler into operation.
WARNING: Never use an open flame to test for gas leaks. Always use an approved leak detection method. Failure to comply with this warning can cause extensive property damage, severe personal injury or death!
Whenever the gas supply piping is pressure tested the boiler/water heater gas controls must be protected. If the test pressure is equal to, or less than 1/2 psig, 3.5 kPa isolate the boiler/water heater by closing it’s manual shut off valve, see Figure 18. If the test pressure is greater than, or equal to 1/2 psig, 3.5 kPa, disconnect the boiler/water heater and its individual shut-off valve.

ELECTRICAL WIRING

Electrical Power Connections
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation! Verify proper operation after servicing.
The electrical connections to this boiler/water heater must be made in accordance with all applicable local codes and the latest revision of the National Electrical Code, ANSI/ NFPA-70. Installation should also conform with CSA C22.1 Canadian Electrical Code Part I if installed in Canada.
A properly rated shut-off switch should be located at the boiler/water heater. The boiler/water heater must be grounded in accordance with the authority having jurisdiction, or if none, the latest revision of the National Electrical Code, ANSI/NFPA-70.
Line voltage field wiring of any controls or other devices must conform to the temperature limitation of type T wire at 95°F, 35°C above room temperature. Use copper conductors with a minimum size of #14 awg. Use appropriate wiring materials for units installed outdoors.
Refer to the wiring diagram supplied with the boiler/water heater for proper wiring connections and boiler full load amperage (FLA).

GENERAL OPERATION

WARNING: Before proceeding read and fully understand the instructions contained in this manual. Do not attempt to operate this boiler/water heater if it has not been installed in accordance with the guidelines set forth in this manual. Failure to comply with this warning can result in extensive property damage, severe personal injury or death!
Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance. Do not interrupt water flow through the boiler/water heater.

Hydronic Heating Boilers
Open the make-up water valve and slowly fill the boiler and all of the radiation with water. Ensure that all bleed and drain valves are closed.
Adjust the make-up water pressure regulator so a minimum 12 psig, 82.7 kPa system pressure is maintained at the highest point in the system piping. If a make-up water pump is used adjust it to maintain a minimum 12 psig, 82.7 kPa system pressure.
Open the system bleed and drain valves, one at a time, to purge the air trapped in the heating system piping.
With the boiler off, run the system pump for at least 30 minutes and bleed the system piping using the bleed valves. If strainers are used in the system piping, the make- up water valve should be closed and the strainers checked and cleaned.

The system expansion tank should be checked to ensure that the correct water level in the tank is maintained. The tank should be less than half full of water with the system full and adjusted to the correct operating pressure.
Start the boiler as described in the “OPERATING INSTRUCTIONS” section. Run the boiler for at least an hour. The system pump(s) and all radiation units must be operated during this time. Ensure that the make-up water valve is open.
Shut the boiler off and open the bleed valves to purge the air trapped in the heating system piping. Close the makeup water valve and check and clean the strainers and make-up water pressure reducing valve.
Open the make-up water valve and adjust the system pressure if necessary. The system should be checked and bled after three days of operation.

OPERATING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE OPERATING.

A. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot 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.
DANGER: Propane gas may not always be detected by smell. Propane gas is heavier than air and can collect in low areas.

FOR YOUR SAFETY
• Have only qualified licensed professionals install, service and maintain this appliance and your gas system in accordance with all applicable codes.
• If you suspect a leak:

1. Have everyone leave the building immediately.
2. Do not attempt to light any appliance.
3. Do not touch any electrical or electronic switches in the building.
4. Do not use any phone in the building.
5. Call your gas supplier from a phone outside of the building.
6. If you cannot reach your gas supplier call the fire department.

C. 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 has been under water.
CAUTION: To prevent being burned, stand clear of the boiler during ignition and don’t touch any hot metal parts!

Operating Instructions

1. STOP! Read the safety information above. If, at any time, the appliance will not operate properly, follow the instructions “TO TURN OFF GAS TO APPLIANCE”.
2. Set the operating control or thermostat to off or its lowest setting.
3. Turn off all electric power to the appliance.
4. Close the manual main and pilot gas shut-off valves.
5. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information above (to the left) on this label. If you do not smell gas, go to the next step.
6. Connect a manometer having a minimum capacity of 20 in, 508 mm WC to the gas pressure test port, see Figure 22. Make sure that the gas supply piping has been purged of air and that all gas joints up to the gas valve have been thoroughly checked for leaks.
7. Open the manual pilot valve. 8. Turn on all electric power to the boiler.
8. Set the operating control or thermostat to the desired setting.
9. The pilot should automatically light. Do not try to light the pilot by hand! 11. With the pilot lit, open the main gas shut-off valve. 12. The burner should light with proper boiler operation.

To Turn Off Gas To Appliance

1. Set the operating control or thermostat to its lowest setting.
2. Turn off all electric power to the appliance if service is to be performed.
3. Close the manual main and pilot gas shut-off valves.

CHECKING & ADJUSTMENTS

On initial light-off, the installer may alter the preset factory settings to attain satisfactory combustion. An accurate manometer and flue gas analyzer must be used. Please see Fire Testing section 4 for combustion guidelines.

Spark Gap
With the main and pilot gas manual valves in the closed position energize the unit. Observe the trial for ignition to confirm that the spark is strong and continuous. If not, check and adjust the spark gap as shown in Figure 19.

Figure 19 – Spark Gap

Pilot Operation
The pilot pressure has been factory set at 3 in. WC for natural and LP gas and shouldn’t need adjustment. To check the pilot pressure close the manual main shut-off valve and the pilot gas shut-off valve, Figure 18. Remove the 1/8″ pipe plug from the pilot tee and connect a manometer having a minimum range of 6 in, 152 mm WC to it. Open the pilot gas shut-off valve. With the unit powered, generate a call for heat. When the prepurge is complete the ignition/pilot trial will begin. At this point put the Honeywell RM7800 test switch in the test position. The control will hold in the ignition/ pilot sequence allowing you to check the pressure.

To adjust the pilot the following steps must be taken:

1. Remove the pilot gas pressure regulator cap.
2. Turn the pressure regulator adjustment screw clock-wise to increase the flame and counterclockwise to decrease it.
3. Replace the pressure regulator adjustment screw cap.

Fire Testing

1. For an on/off unit confirm that the low-fire side of the two-stage gas valve is set to its maximum setting.
   For a two-stage unit a 1/16 in. thick silicon spacer should be installed under the low-fire adjusting screw.
   Without this spacer it won’t be possible to consistently set the low-fire pressure to 2.4 in, 61 mm WC.

2. Follow the instructions in the “OPERATING INSTRUCTIONS” section starting on page 28 to fire the main burner. Upon ignition of the main burner adjust the high fire adjusting screw to obtain the high fire pressure listed in Table 12. On a two-stage unit disconnect the power from the high fire side of the gas valve and adjust the low fire, regulator. If the unit short cycles on low fire adjust the air box pressure and gas back pressure as outlined below.
   CAUTION: Never force the regulator adjustment screw beyond the stop limits or damage to the regulator will occur!
   Table 12 – Pressure Settings, Inches W.C.  Model| Natural Gas| LP Gas
   ---|---|---
   Size|  Low| High| Low| High
   | in| mm| in| mm| in| mm| in| mm
   500| n/a| n/a| 2.3| 58| n/a|  n/a| 4.0| 102
   750| 2.4| 61| 3.0| 76| 6| 152| 7.0| 178
   1000| 2.4| 61| 3.0| 76| 6| 152| 7.0| 178
   1250| 2.4| 61| 3.0| 76| 6| 152| 7.0| 178
   1500| 2.4| 61| 3.0| 76| 6| 152| 7.0| 178
   1750| 2.4| 61| 3.0| 76| 6| 152| 7.0| 178
   1950| 2.4| 61| 3.0| 76| 6| 152| 7.0| 178

3. When fire tested at the factory the unit’s input was rated and the gas pressure(s) recorded on the test label affixed to the jacket next to the junction box. To confirm the input of the unit follow the instructions in the INPUT RATE section below. The gas pressure setting(s) for dual fuel units may vary; refer to the test label on the unit.

4. An undiluted flue gas sample must be taken at the flue outlet using a calibrated flue gas analyzer. Allow the unit to run for 15 minutes before taking the sample. For a natural gas unit the low fire CO 2 reading should be 7.3%-7.5% and 8.5%-8.8% for propane gas. The high fire CO 2 reading should be 7.5%-8.0% and 8.8%-9.4% for propane gas. Exceeding 8.0% on natural gas or 9.4% on propane gas CO 2 will shorten the life of the burner. Adjust the inlet air damper to achieve the correct CO 2 readings.

5. If the pressure settings vary from those listed in Table 8, please affix a new label or notice to the boiler, which shows these new settings. However, do not sacrifice or compromise safe combustion, carbon monoxide limits, or safety settings to achieve these figures. The pressures listed in Table 12 are guidelines obtainable under ideal conditions.

6. To test the ignition safety shutoff device, close the manual shutoff valve in the gas supply line. Within 5 seconds of main burner flame extinction, the main gas valve solenoid should close with an audible noise. After 15 seconds the module should lockout and the trial for ignition end. After 5 minutes a second trial for ignition should occur. Open the manual shutoff valve in the gas supply line and reset the ignition control system. A normal ignition sequence should take place. If the burner hasn’t lit after the last ignition try, the gas valve will close and the system will go into lock out only on CSD-1 units otherwise, the boiler will retry every 5 minutes. Inspect the ignition system to determine what the problem is.

7. With the main burner in operation, close the manual firing valve. As soon as the main burner flames go out, open the manual firing valve. A normal ignition sequence should take place. If the burner fails to light the system will make one more ignition attempt.

8. With the burners in operation, interrupt the power to the control circuit by lowering the operating control or thermostat. The main burners should go out. Reset the operating control or thermostat, a normal ignition sequence should follow.

Air Box Pressure
Connect a manometer to the air box pressure tap located behind the control cover, Figure 21.
Table 13 lists the factory settings for the air box pressure and gas back pressure that were set using a minimum length of vent pipe. It may be necessary to adjust the air shutter on the blower to achieve acceptable combustion readings for certain installations.

Figure 21 – Air Box Pressure Tap

If vented vertically ensure that the barometric damper is capable of maintaining the air box pressure listed in Table 13. An air box pressure lower that that listed in Table 13 can significantly reduce the life of the burner.
Long horizontal vents will result in an air box pressure higher that that listed in Table 13. It may be necessary to open the air damper to obtain the correct combustion settings.

Required Gas Pressure
Connect a manometer to the gas pressure test port upstream of the firing valve, Figure 22. Close the manual shut off valve for the pilot gas. Ensure that the firing valve is in the open position. Energize the unit and allow it to try for ignition until it goes into flame failure. If the gas back pressure is significantly different from that listed in Table 13 the air/gas mixing tube may be misaligned.

Provide gas supply pressure at inlet to boiler gas train as follows:

| LP| Nat
---|---|---
Minimum (in WC)| 11| 5
Maximum (in WC)| 14| 14

Measure pressure when the boiler is firing at full rate. Low gas pressure could indicate undersized gas line or insufficient gas supply.

“Static and operating gas pressure required at the gas valve inlet is between 5 in. WC and 14 in. WC for natural gas and 11 in. WC and 14 in. WC for propane and not to exceed a maximum of (1.0 WC) drop when firing from minimum input to full load of the gas supply line and all the appliances running. If the gas pressure is above this limit, a lock-up style regulator suitable for dead end service such as an Equimeter or Fisher must be installed to prevent increase (creep) of gas pressure when the units are not operating. This pressure regulator (supplied by others) may be installed at the service entrance to each unit or a “master” regulator sized to handle multiple units may be utilized. Consult local gas utility or regulator manufacturer for recommendations to meet specific job site requirements.”

Figure 22 – Air Adjustment & Gas Pressure Test Port

Table 13 – Pressure Settings, WC

Input Rate, Natural Gas
Gas appliances are rated based on sea level operation with no adjustment required at elevations up to 2000 ft, 610 m.
At elevations above 2000 ft, 610 m input ratings should be reduced by 4% for each 1000 ft, 305 m.

Check the input rate as follows:

1. Turn off all other gas appliances that use the same gas meter as the boiler/water heater.
2. Call your gas supplier and ask for the heating value of the gas.
3. Start the boiler/water heater and let it run for 15 minutes.
4. Using the gas meter and a stopwatch, clock the time that it takes to burn 10 ft³, 0.28 m³ of gas and divide this time by 10.
5. Insert the heating value and the time, in seconds, into the formula below.
6. Input = (heating value, Btu/hr)(3600)/(time, seconds)
7. If the computed rate deviates by more than 5% from the rated input value of the unit adjust the manifoldpressure accordingly. DO NOT adjust the manifoldpressure by more than 5%. If a proper rate cannot be maintained without adjusting the manifold pressurebeyond the 5% limit, the main burner orifices must be replaced. If the input rate is too low, go to the nextlarger size of main burner orifices. If the input rate is too high, go to the next smaller size.

CAUTION: Never increase the input to the boiler/water heater above that for which it is rated. Doing so can cause premature failure of the boiler!

CONTROL DESCRIPTION

Low Water Cutoff If the boiler is to be installed above radiation or if required by other codes or regulations, install a low water cutoff in appropriate piping. Wire the switch and any external controls in series to the “Interlock” contacts in the control box, see the wiring diagrams included with the unit for details. Ensure that the low water cutoff device(s) will function properly.

Boiler Thermostat
If a thermostat is to be used to control the boiler always follow the instructions included with the thermostat. Proper location of the thermostat will ensure efficient trouble-free operation of the boiler. Mount the thermostat to an inside wall at a height approximately 5 ft, 1.5 m above the floor.
Avoid placing the thermostat in areas that will not provide an accurate measurement of the room temperature. Locating the thermostat behind a door, in an alcove, close to a source of thermal radiation or in a drafty area will cause poor or sporadic heating.
For a thermostat that employs an adjustable heat anticipator, adjust the anticipator to match the current measured in the thermostat circuit. An increased anticipator setting may be necessary if the unit cycles frequently. If the room temperature over-shoots the thermostat setting, reduce the anticipator setting.

Operating Control
The operating control on the water heater is set to its lowest setting when the water heater leaves the factory. The preferred control setting for potable hot water is 130°F, 54°C. The operating control should be set to the lowest setting that will satisfy the consumer’s needs.

SP Setpoint or Target Temperature:
The Setpoint is the inlet water temperature that the operating control will try to match by staging the boiler between Off, Stage 1 – D1 and Stage 2 – D2.

1. Press and hold the up button for up to 3 seconds to activate the set point change. The set point parameter field will be visible on the display screen. Use the up/down arrows to change the result to the desired temperature setting.
2. Press the OK button to save the value.

D1 Boiler Differential:
The Boiler Differential is centered around the set point so that when the sensor reads 1/2 of D1 below the set point, stage 1 will be energized. When the sensor reads a temperature 1/2 of D1 above the set point, stage will turn off.

1. From the display home screen press the OK button for up to 1-3 seconds to enter the menu screen. Press OK to enter the User Level. Use the up/down arrows to scroll to the d1 parameter. Press the OK button then use the up/ down button to change to the desired value. Press the OK button to store the value.
2. Press the return button repeatedly to get back to the home screen.

D2 Boiler Differential:
The Interstage Differential is the difference in temperature between stage 1 being called on, and stage 2 being called on.

1. From the display home screen press the OK button for up to 1-3 seconds to enter the menu screen. Press OK to enter the User Level. Use the up/down arrows to scroll to the d2 parameter. Press the OK button then use the up/ down button to change to the desired value. Press the OK button to store the value.
2. Press the return button repeatedly in order to get back to the home screen.

Temperature Scale:
Use the following steps to change the temperature scale.

1. From the display home screen press the OK button for up to 1-3 seconds to enter the menu screen. Scroll to the Configuration level and press OK. Then press the OK button to enter the System level. Use the up/down arrows to scroll to the temperature parameter. Press the OK button then use the up/down button to change to the desired temperature scale. Press the OK button to store the value.
2. Press the return button repeatedly to get back to the home screen.

WARNING: Setting the thermostat or operationcontrol too high can result in scalding resulting insevere personal injury!

High Limit (Aquastat)
The high limit is located in the top control area of the boiler/water heater. A remote capillary bulb is run to a well on the outlet side of the supply header. The high limit can be reset by depressing the red button.
The water heater high limit should be set a minimum of 20°F, 11°C higher than the operating control. Refer to the HOT WATER SUPPLY section for the proper supply water temperature.
Flow Switch
The flow switch is provided to prove flow is present through the boiler. The temperature rise across the primary heat exchanger must never exceed 35°F, 19.4°C.

DIAGNOSTICS
The Futera II has a number of indicator lights that are intended to display the current operation and to indicate any possible problems. The function of each light is listed below.
On/Off Switch: The toggle switch will illuminate when power is being supplied to the unit.
Call For Low Fire: This green light will illuminate when there is a low fire heat demand either from the RBI Temperature Controller or a Building Management Control.
Call For High Fire: This green light will illuminate when there is a high fire heat demand either from the RBI Temperature Controller or a Building Management Control.
Trial Ignition: This yellow light will illuminate when the pilot gas valve is energized.
Main Burner: This green light will illuminate when the main gas valve is energized.
High Limit: This red light will illuminate when the outlet water temperature has exceeded the setting on the High Limit control during call for heat.
Low Water: This red light will illuminate when there is not proper water flow during a call for heat.
Low Air Flow: This red light will illuminate when there is not proper combustion air flow during a call for heat.
Flame Failure: Illuminate whenever the ignition control is unable to establish a pilot flame within the trial for ignition period. This light will also illuminate if the Flame Safeguard Ignition Control is in lockout for other reasons.

MAINTENANCE

WARNING: Disconnect electrical power and close the manual gas shut off valve before performing maintenance or severe personal injury may result!
CAUTION: Servicing, inspection and adjustment must be done by a trained technician in accordance with all applicable local and national codes. Improper servicing or adjustment can damage the boiler /water heater!
The boiler/water heater combustion system must be inspected at least once a year and before each heating season. Make sure that the burner and ignition components are free from dust, soot, dirt, corrosion or other deposits that would impair the boiler/water heater’s performance. Refer to page 37 for component identification.
CAUTION: Improper burner servicing can result in premature burner failure voiding the warranty!

Burner/Heat Exchanger Inspection

1. Close the manual shutoff valves in the gas supply lines and turn off electrical power to the boiler/water heater.
2. Remove the jacket top panel.
3. Remove the combustion chamber top panel.
4. Remove the air gas mixing tube.
5. Disconnect the pilot tubing and ignition/sensing lead from the burner.
6. Remove the four nuts that attach the burner to the heat exchanger.
7. Carefully lift the burner out of the unit.
8. Inspect the burner for damage or signs of deteri- oration. Use a brush or compressed air to remove any debris from the burner ports.
9. DO NOT install a damaged or badly corroded burner, replace it.
10. Inspect heat exchanger, proceed to the following sections, (page 31), if further inspection or cleaning is required.
11. Install the burner making sure that the burner gasket is not torn or deteriorated. If it is, replace it.
12. Reassemble the unit following the removal steps in reverse order.

Heat Exchanger Inspection

1. Close the manual shutoff valves in the gas supply lines and turn off electrical power to the boiler/water heater.
2. Remove burner following the instructions in the Burner Removal & Inspection section.
3. Remove the front jacket panel and combustion chamber door.
4. Inspect the inside and outside of the heat exchanger for signs of damage, sooting or corrosion.
5. The outside surfaces of the copper tubes should be free of any soot deposits. A slight black smudge is normal with some types of gases. Black soot indicates poor combustion. Green deposits indicate condensation due to low return water temperatures. In either case the heat exchanger must be cleaned thoroughly and the problem resolved before the boiler/water heater is returned to service.
6. If there are no signs of damage, sooting or corrosion, reassemble the unit following the previous steps in reverse order.
7. A badly corroded or damaged heat exchanger must be replaced, see the Heat Exchanger Repair & Replacement section.

Heat Exchanger Cleaning

1. Close the shut off valves in the inlet and outlet piping. On heating systems close the system fill valve and relieve the system pressure from the boiler by carefully lifting the relief valve or opening the drain valve.
2. Disconnect the boiler/water heater from the system piping.
3. Remove the eight bolts on the rear pipe enclosure panel.
4. Remove the front jacket panel and combustion chamber door.
5. Slide the heat exchanger out of the unit.
6. Remove the “V” baffle straps and “V” baffles.
7. Thoroughly clean the heat exchanger with water from a high-pressure hose. Use a soft bristle brush if necessary.
8. Replace the cleaned heat exchanger and other components in the reverse order of their removal.

NOTICE
Follow section “Operating Instructions” for recommissioning. (Record pressure readings and combustion values for next inspection cycle).

Heat Exchanger Repair & Replacement

1. A leaking or otherwise damaged tube(s) can be replaced as outlined in steps 2 through 8.
2. Remove the heat exchanger from the boiler/water heater as outlined in the Heat Exchanger Cleaning section.
3. Remove the pipe plugs from the inlet/outlet and return headers opposite from the ends of the tube(s) being replaced.
4. Carefully cut the damaged tube(s) in half taking care not to damage the adjacent tubes and remove.
5. Install and swage/expand in place the new tube(s).
6. Replace the pipe plugs using a suitable tread sealant on each one.
7. Sagging or distorted heat exchanger tubes are an indication of low water flow through the system. A damaged heat exchanger must be replaced and the condition that caused the damage resolved before the boiler/water heater is returned to service.
8. Replace the heat exchanger and other components in the reverse order of their removal.
9. The torque values for the bolts that secure the removable headers are 30-50 ft lbs. Once bolts have been started and secured the tightening sequence is as follows:

1. Middle top
2. Middle Bottom
3. Right Top
4. Left Bottom
5. Left Top
6. Right Bottom

Air Intake & Vent System
Thoroughly inspect the vent system for any signs of blockage, corrosion or leakage and periodically clean screen in vent terminal (where applicable). Immediately replace any unsound vent system piping.

Controls
Use the “GENERAL OPERATION” and “CHECKING AND ADJUSTMENTS” sections of this manual for reference.

1. Check the thermostat or operating controls for proper operation.
2. A float type low water cutoff device must be flushed out per the manufacturers’ instructions. The probe on a probe low water cut off must be removed, cleaned and inspected at least once a year. Ensure that the low water cutoff operates properly. If not, replace them.
3. The flow switch contacts must be open when water flow is not present.
4. The relief valve should not weep or discharge water at normal system pressure – this may be due to thermal expansion in a closed water supply system. If it does, contact a qualified service technician to have it inspected. NEVER try to clean or repair the relief valve! If the valve fails to operate properly, have it replaced!
5. The aquastat high limit controls the maximum water temperature in the boiler. It is adjustable from 140°F, 60°C to 250°F, 121°C. If the water temperature reaches the set temperature before the demand for heat has been met, the aquastat high limit should shut the boiler off. The water temperature should never exceed the maximum set point of 250°F, 121°C. The aquastat high limit cannot be repaired. If it fails to function properly, replace it.
6. Visually check the pilot and main burner flames to ensure proper operation, see Figures 19 & 23.

WARNING: A yellow, floating flame indicate a lack of combustion air. Do not operate the boiler/ water heater until the problem is solved or severe personal injury or death may occur!

TROUBLE-SHOOTING

is being supplied to the unit.
Inspect the circuit breaker for the boiler/water heater circuit.
Ensure that the power switch operates properly and is wired correctly.
Check the transformer for proper operation.
2.| The “Low Water” indicator light illuminates.| Ensure that the boiler/water heater has been completely purged of air.
Ensure that the pump is operating properly/rotating in the proper direction.
Ensure that all system valves are in the correct position and that no restrictions in the piping are present.
Confirm that the flow switch is wired correctly and functions properly.
3.| The “Low Air Flow” indicator light illuminates.| Check the light.
Inspect the vent and air intake systems to ensure that blockages are not present.
Ensure that the vent and air intake systems conform to the guidelines in this manual.
Confirm that the blocked flue switch connections are correct and that it is functioning properly.
Ensure that the blower air inlet damper & pressure switch are adjusted for the correct air box pressure.
4.| The “Trial for Ignition” indicator light illuminates, but the igniter does not spark.| Confirm that the ignition module is properly wired.
Confirm that the ignition lead isn’t grounded out.
Inspect the igniter and ensure that the spark gap is correct.
Ensure that the ignition module is properly grounded.
5.| The “Main Burner” ignites, but the natural gas high fire manifold pressure is less than 2.5 in. WC| Ensure that at least the minimum inlet pressure is supplied at the inlet of the gas valve.
6.| The Boiler/Water Heater rumbles on start up.| Ensure that the burner is set up per the “CHECKING & ADJUSTMENTS” section.
Ensure that the unit is properly vented.

Futera II Model Size with Item Quantities Below

Ref #| Name of Part| Part #| 500| 750| 1000| 1250| 1500| 1750| 1950
4| Combustion Chamber Top Panel| 03-1731| 1| 1| 1| | | |
03-1732| | | | 1| 1| 1| 1
9| Light Board, 120V| 40-0071| 1| 1| 1| 1| 1| 1| 1
11| Air/Gas Mixing Tube Assembly| 70-2183| 1| 1| 1| | | |
70-2184| | | | 1| 1| 1| 1
12| Fan Assembly, 1/4HP| 70-2200K| 1| 1| 1| | | |
Fan Assembly, 1/2HP| 70-2201K| | | | 1| 1| |
Fan Assembly, 3/4HP (must replace upper rear panel prior to 1009)| 70-2204K| | | | | | 1| 1
13| Pilot Tube Assembly (prior to 06/14)| 70-2185| 1| 1| 1| | | |
(Consult Factory)| 70-2185.1| | | | 1| 1| 1| 1
Pilot Screw| 57-0356| 2| 2| 2| 2| 2| 2| 2
Pilot Nut| 57-0456| 2| 2| 2| 2| 2| 2| 2
14| Spark Generator| 16-0036| 1| 1| 1| 1| 1| 1| 1
NS| Purge Timer, ST7800| 16-0007| 1| 1| 1| 1| 1| 1| 1
NS| Rocker Switch On/Off| 48-0012| 1| 1| 1| 1| 1| 1| 1
15| Pump Delay Relay, 115AC| 15-0114| 1| 1| 1| 1| 1| 1| 1
16| Pump Contactor 1PH (fan relay)| 15-0118| 1| 1| 1| 1| 1| 1| 1
NS| Low Gas Pressure Switch (Manual Reset)| 11-0410| 1| 1| 1| 1| 1| 1| 1
NS| High Gas Pressure Switch (Manual Reset)| 11-0411| 1| 1| 1| 1| 1| 1| 1
NS| Hi Limit Relay (R1)/Flame Failure (R2), 120V| 15-0125| 1| 1| 1| 1| 1| 1| 1
17| Pressure Relief Valve 50#| 13-0040| 1| | | | | |
Pressure Relief Valve 50#| 30-0360| | 1| | | | |
Pressure Relief Valve 50#| 30-0374| | | 1| 1| | |
Pressure Relief Valve 50#| 30-0379| | | | | 1| 1|
Pressure Relief Valve 50#| 13-0002| | | | | | | 1
Pressure Relief Valve 125#| 30-0364| 1| 1| 1| 1| 1| 1| 1
18| Tridicator 0-100 psi (PRV 30 – 50 psi)| 13-0308| 1| 1| 1| 1| 1| 1| 1
Tridicator 0-230 psi (PRV 60 – 160 psi)| 13-0305| 1| 1| 1| 1| 1| 1| 1
19| Turbo Pilot Orifice NG| 10-0142-001| 1| | | | | |
10-0142-002| | 1| 1| 1| 1| 1| 1
Turbo Pilot Orifice LP| 10-0143-001| 1| 1| 1| 1| 1| 1| 1
20| Blocked Flue Switch (.4″-4″) w.c.| 11-0420| 1| 1| 1| 1| 1| 1| 1
Air Intake Switch (.2″) w.c.| 11-0416| 1| 1| 1| 1| 1| 1| 1
21| Cabinet Pressure Switch (.4″-4″) w.c.| 11-0420| 1| 1| 1| 1| 1| 1| 1
Pressue Switch Mounting Ring| 57-0732| 1| 1| 1| 1| 1| 1| 1
22| Pilot Ball Valve| 11-0395| 1| 1| 1| 1| 1| 1| 1
NS| CSD-1 Leak Test Valve| 11-0031| 1| 1| 1| 1| 1| 1| 1
23| Turbo Pilot Spark Rod Assembly NG
(not compatible w/burners prior to 0614)| 70-4303-001| 1| | | | | |
70-4303-002| | 1| 1| | | |
70-4303-003| | | | 1| 1| 1| 1
Turbo Pilot Spark Rod Assembly LP
(not compatible w/burners prior to 0614)| 70-4304-001| 1| 1| 1| | | |
70-4304-002| | | | 1| 1| 1| 1
23a| Electrode (Turbo Pilot)| 16-0338| 1| 1| 1| | | |
Electrode (Turbo Pilot)| 16-0335| | | | 1| 1| 1| 1
23b| Turbo Pilot Gasket| 06-0055| 1| 1| 1| | | |
06-0056| | | | 1| 1| 1| 1
23c| View Port Assembly| 70-2205| 1| 1| 1| 1| 1| 1| 1
View Port Glass| 20-0006| 1| 1| 1| 1| 1| 1| 1
23d| Mini Peeper, C7027A| 16-0009| 1| 1| 1| 1| 1| 1| 1
24| Ignition Cable| 44-0063| 1| 1| 1| 1| 1| 1| 1
NS| Pressure Switch Tubing (ft)| 06-0051| 2| 2| 2| 2| 2| 2| 2
26| Pilot Valve| 11-0079| 1| 1| 1| 1| 1| 1| 1
27| Flow Switch| 14-0203| 1| 1| 1| 1| 1| 1| 1
Flow Switch (Outdoor)| 14-0205| 1| 1| 1| 1| 1| 1| 1
Flow Switch (Potter)| 14-0201| 1| 1| 1| 1| 1| 1| 1
Flow Switch (Outdoor Potter)| 14-0202| 1| 1| 1| 1| 1| 1| 1
NS| 3/4″ PVC Foam Panel Gasket – Indoor Assembly (per ft/per roll 50′)| 06-0151| 75| 75| 75| 75| 75| 75| 75
NS| 1″ PVC Foam Gasket – Outdoor Assembly (per ft/ per roll 50′)| 06-0152| 50| 50| 50| 50| 50| 50| 50
NS| Red Silicone Combustion Chamber Gasket (per roll 50′)| 06-0146| 50| 50| 50| 50| 50| 50| 50
30| (Outdoor) Jacket Gasket Material (per roll 50′)| 66-0102| 100| 100| 100| 100| 100| 100| 100
31| Burner Gasket (Must order as a kit)| 21-2012| 1| 1| 1| | | |
21-2013| | | | 1| 1| 1| 1
32| Flame Safeguard, RM7897C (Verify Component Model)| 75-0404-001| 1| 1| 1| 1| 1| 1| 1
---|---|---|---|---|---|---|---|---|---
Flame Safeguard, RM7895C (Verify Component Model)| 75-0403-001| 1| 1| 1| 1| 1| 1| 1
NS| Keyboard Display Module, S7800A| 16-0067-001| 1| 1| 1| 1| 1| 1| 1
NS| UV Amplifier, R7849A| 16-0006| 1| 1| 1| 1| 1| 1| 1
33| High Limit, L4008E, (FW)| 14-0105| 1| 1| 1| 1| 1| 1| 1
High Limit, L4008E, (FB)| 14-0112| 1| 1| 1| 1| 1| 1| 1
34| Operator, Jumo| 16-0069-001| 1| 1| 1| 1| 1| 1| 1
NS| Temperature Probe Sensor| 16-0026| 1| 1| 1| 1| 1| 1| 1
37| Top Panel View Port Frame & Glass| 20-0032| 1| 1| 1| 1| 1| 1| 1
38| Heat Exchanger “V” Baffle Strap| 03-1619| 2| 2| 2| | | |
03-1620| | | | 2| 2| 2| 2
44| Complete Burner Assembly, w/Turbo Pilot, NG| 70-4301-001| 1| | | | | |
70-4301-002| | 1| | | | |
70-4301-003| | | 1| | | |
70-4301-004| | | | 1| | |
70-4301-005| | | | | 1| |
70-4301-006| | | | | | 1|
70-4031-007| | | | | | | 1
Complete Burner Assembly, w/Turbo Pilot, LP| 70-4302-001| 1| | | | | |
70-4302-002| | 1| | | | |
70-4302-003| | | 1| | | |
70-4302-004| | | | 1| | |
70-4302-005| | | | | 1| |
70-4302-006| | | | | | 1|
70-4302-007| | | | | | | 1
45| On/Off Safety Gas Valve, L8214G, 1″, 120V| 11-0371| 1| 1| | | | |
On/Off Safety Gas Valve, L8214G, 1 1/4″, 120V| 11-0364| | | 1| 1| 1| 1 (LP)| 1 (LP)
On/Off Safety Gas Valve, L8214G, 1 1/2″, 120V| 11-0365| | | | | | 1| 1
46| 2 Stage Gas Valve, V4944B, 1″, 120V| 11-0166| 1| 1| | | | |
2 Stage Gas Valve, V4944B, 1 1/4″, 120V| 11-0167| | | 1| 1| 1| |
2 Stage Gas Valve, V4944B, 1 1/2″, 120V| 11-0168| | | | | | 1| 1
2 Stage Gas Valve, V4944L, 1″, 120V| 11-0180| 1| 1| | | | |
2 Stage Gas Valve, V4944L, 1 1/4″, 120V| 11-0170| | | 1| 1| 1| 1| 1
47| Main Gas Orifice, NG| 10-0051| 1| | | | | |
10-0052| | 1| | | | |
10-0053| | | 1| | | |
10-0054| | | | 1| | |
10-0055| | | | | 1| |
10-0056| | | | | | 1|
10-0057| | | | | | | 1
Main Gas Orifice, LP| 10-0058| 1| | | | | |
10-0059| | 1| | | | |
10-0060| | | 1| | | |
10-0061| | | | 1| | |
10-0062| | | | | 1| |
10-0063| | | | | | 1|
10-0064| | | | | | | 1
48| “A” Valve, 1″| 11-0465| 1| 1| | | | |
“A” Valve, 1 1/4″| 11-0466| | | 1| 1| 1| 1 (LP)| 1 (LP)
“A” Valve, 1 1/2″| 11-0467| | | | | | 1| 1
49| Firing Valve, 1″| 11-0456| 1| 1| | | | |
Firing Valve, 1 1/4″| 11-0457| | | 1| 1| 1| |
Firing Valve, 1 1/2″| 11-0458| | | | | | 1| 1
8| Inlet Adapter (Flanged)| 01-0044GL| 1| 1| 1| | | |
01-0045GL| | | | 1| 1| 1| 1
Outlet Adapter (Flanged)| 01-0046GL| 1| 1| 1| | | |
01-0047GL| | | | 1| 1| 1| 1
Outlet Adapter (Threaded)| 01-0042| 1| 1| 1| | | |
01-0043| | | | 1| 1| 1| 1
Inlet/Outlet Header Gasket (Must order as a kit)| 21-2012| 1| 1| 1| | | |
21-2013| | | | 1| 1| 1| 1
51| Heat Exchanger Assembly (Copper) Cast Iron
(prior to 2009 must replace with bronze headers or change combustion chamber top panel to adapt to cast iron)| 70-2515R| 1| | | | | |
---|---|---|---|---|---|---|---|---|---
70-2516R| | 1| | | | |
70-2517R| | | 1| | | |
70-2518R| | | | 1| | |
70-2519R| | | | | 1| |
70-2520R| | | | | | 1|
70-2521R| | | | | | | 1
Heat Exchanger Assembly (Copper) Bronze| 70-2186R| 1| | | | | |
70-2187R| | 1| | | | |
70-2188R| | | 1| | | |
70-2189R| | | | 1| | |
70-2190R| | | | | 1| |
70-2191R| | | | | | 1|
70-2192R| | | | | | | 1
Individual copper/cupronickel tube (available for field repair) model and serial number required. Call for pricing
Tube Expansion Tool| 30-0761| 1| 1| 1| 1| 1| 1| 1
Heat Exchanger Assembly (Cupronickel) Cast Iron
(prior to 2009 must replace with bronze headers or change combustion chamber top panel to adapt to cast iron)| 70-2522R| 1| | | | | |
70-2523R| | 1| | | | |
70-2524R| | | 1| | | |
70-2525R| | | | 1| | |
70-2526R| | | | | 1| |
70-2527R| | | | | | 1|
70-2528R| | | | | | | 1
Heat Exchanger Assembly (Cupronickel) Bronze| 70-2193R| 1| | | | | |
70-2194R| | 1| | | | |
70-2195R| | | 1| | | |
70-2196R| | | | 1| | |
70-2197R| | | | | 1| |
70-2198R| | | | | | 1|
70-2199R| | | | | | | 1
52| Heat Exchanger “V” Baffle| 03-1612| 20| | | | | |
03-1613| | 20| | | | |
03-1614| | | 20| | | |
03-1615| | | | 28| | |
03-1616| | | | | 28| |
03-1617| | | | | | 28|
03-1618| | | | | | | 28
53| High Limit Well, 3/8 x 3| 13-0104| 2| 2| 2| 2| 2| 2| 2
57| Air Filter| 09-0497| 1| 1| 1| | | |
09-0498| | | | 1| 1| |
09-0499| | | | | | 1| 1
NS| FII Overlay| 82-0196| 1| 1| 1| 1| 1| 1| 1
NS| Clear Silicone Sealant| 66-0151| 1| 1| 1| 1| 1| 1| 1
NS| Silicone Tubing| 06-0051| 2| 2| 2| 2| 2| 2| 2
NS| Vent Termination Hood 8″| 09-0113| 1| | | | | |
Vent Termination Hood 10″| 09-0115| | 1| 1| | | |
Vent Termination Hood 12″| 09-0116| | | | 1| 1| |
Vent Termination Hood 14″| 09-0141| | | | | | 1| 1
NS| Air Intake Hood 10″| 09-0104| 1| 1| 1| | | |
Air Intake Hood 12″| 09-0105| | | | 1| 1| |
Air Intake Hood 14″| 09-0106| | | | | | 1| 1
NS| Barometric Damper 8″| 09-0404| 1| | | | | |
Barometric Damper 10″| 09-0403| | 1| 1| | | |
Barometric Damper 12″| 09-0401| | | | 1| 1| |
Barometric Damper 14″| 09-0402| | | | | | 1| 1
NS| 120 Volt Freeze Protection Damper Motor Assembly| 09-0428| 1| 1| 1| 1| 1| 1| 1

FUTERA II START UP SHEET

Date of Start Up: —————-
RBI Ref. #: —————-
Serial # (‘s):  —————- Boiler #1 —————- Model# —————-
Boiler #2 —————-
Boiler #3 —————-
Boiler #4 —————-
Boiler #5 —————-

The above information will be used to identify each boiler in the system. You should make every attempt to affix the boiler number as noted here to the boiler physically.
START UP PROCEDURE AND DATA

STEP DESCRIPTION

| Readings Or Checks By Boiler Number
---|---
1| 2| 3| 4| 5
1| No leaks, valves open, pump running, exchanger full| | | | |
2| Gas lines purged, no leaks, no missing test plugs| | | | |
3| Manometer installed in test port upstream of firing valve| | | | |
4| Manometer installed to air box pressure tap| | | | |
5| Wiring checked and verified with supplied diagram| | | | |
6| All terminals identified properly and tight| | | | |
7| Fan (no gas): Verify no air leaks through outer cabinet| | | | |
8| With fan running: Record air box pressure “WC”| | | | |
9| With fan running: Record back pressure “WC”| | | | |
10| Vent configuration (HOR: horizontal VER: vertical)| | | | |
11| Equivalent vent length (each fitting is 10′ equivalent)| | | | |
12| Breaching size:| | | | |
13| Barometric installed/location:| | | | |
14| Through wall venting with factory supplied termination:| | | | |
15| Pilot adjusted to within 1 turn of max (natural gas only)| | | | |
16| Spark is strong and continous w/o gas:| | | | |
17| Pilot fires-advances to main several times (main gas off)| | | | |
18| Voltage:| | | | |
19| Manifold pressure “WC” (see tag on boiler) High Fire| | | | |
20| Manifold pressure “WC” (see tag on boiler) Low Fire| | | | |
21| O2 Lo Fire%| | | | |
22| O2 Hi Fire %| | | | |
23| CO2 Lo Fire %| | | | |
24| CO2 Hi Fire %| | | | |
25| CO Lo Fire PPM| | | | |
26| CO Hi Fire PPM| | | | |
27| Efficiency Lo Fire %| | | | |
28| Efficiency Hi Fire %| | | | |
29| Inlet Temp (F)| | | | |
30| Outlet Temp (F)| | | | |
31| Temp. rise across the exchanger (don’t exceed 35°F , 19.4°C )| | | | |

SAFETY CHECKS AND ADJUSTMENTS

COMMISSIONING THE UNIT

Start up report and procedure completed by: (please print) ————
From (company name) ————
Phone #: ————
AUTHORIZED TECH’S SIGNATURE: ————
Date: ————
Notes/Comments: ————

FUTERA II START UP CHECK LIST
The following items must be field verified as complete prior to the scheduling of factory authorized start up.

1. All electrical is installed and checked: …………………………………………………..  Yes  No
2. All water connections are made: …………………………………………………………..  Yes  No
3. System is flooded and pressure tested: …………………………………………………  Yes  No
4. All pumps (primary or secondary) are running: ……………………………………….  Yes  No
5. Flow switches installed and adjusted:……………………………………………………  Yes  No
6. Drain valve installed on outlet prior to isolation (boiler only): …………………….  Yes  No
7. T/P gauge installed on outlet prior to isolation (boiler only): ……………………..  Yes  No
8. Low water cut off installed and wired: ……………………………………………………  Yes  No
9. Lead/lag/external controls installed and tested: ………………………………………  Yes  No
10. All gas connections are complete: ………………………………………………………..  Yes  No
11. Gas pressure verified between 5″ and 14″ WC……………………………………….  Yes  No
12. Gas lines purged and tested for leaks: ………………………………………………….  Yes  No
13. All stacks/vents connected per spec: …………………………………………………….  Yes  No
14. Air inlet duct work and related items installed:………………………………………..  Yes  No
15. All boiler related equipment operational:………………………………………………..  Yes  No
16. ………………….  Yes  No
17. ………………….  Yes  No
18. ………………….  Yes  No
19. ………………….  Yes  No
20. ………………….  Yes  No

LIMITED WARRANTY

Finned Copper Tube Boilers/Water Heaters
Industrial, Commercial and Other Non-Residential Use

The “Manufacturer” warrants to the original owner at the original installation site that the heat exchanger of the Industrial, Commercial, and other Non- Residential Use Boiler (the “Product”) will be free from defects in material or workmanship for ten (10) years from the date of installation. Additional twenty one (21) year thermal shock warranty on heat exchanger. If upon examination by the Manufacturer the Product is shown to have a defect in material or workmanship during the warranty period, the Manufacturer will repair or replace, at its option, that part of the Product which is shown to be defective. All other RBI supplied Boiler/Water Heater parts and replacement heat exchangers are warranted against defects in material and workmanship for one (1) year from date of installation or 18 months from date of shipment from RBI.
The “Manufacturer” warrants to the original owner at the original installation site that the heat exchanger of the Industrial, Commercial, and other Non- Residential Use Water Heater (the “Product”) will be free from defects in material or workmanship for five (5) years from the date of installation. Additional twenty one (21) year thermal warranty on heat exchanger. If upon examination by the Manufacturer the Product is shown to have a defect in material or workmanship during the warranty period, the Manufacturer will repair or replace, at its option, that part of the Product which is shown to be defective. All other RBI supplied Boiler/Water Heater parts are warranted against defects in material and workmanship for one (1) year from date of installation or 18 months from date of shipment from RBI.

This limited warranty does not apply:
(a) if the Product has been subjected to misuse or neglect, has been accidentally or intentionally damaged, has not been installed, maintained or operated in accordance with the furnished written instructions, or has been altered or modified in any way.
These include but not limited to:

• Excessive water hardness causing a lime build-up in the heat exchanger tubes is not a fault of the equipment and is not covered under the manufacturer’s warranty.
• Excessive pitting and erosion on the inside of the heat exchanger tubes caused by high water velocity through the tubes and is not covered by the manufacturer’s warranty. (See Installation Instructions for proper pump performance.)
• Chemical corrosion, no corrosive chemical (freon, dry cleaning chemicals, degreasing liquids, chlorine or any chemicals that produce hydrochloric acid) can be present in the boiler room as it rapidly destroys the heating equipment and voids the warranty.
• All copper fin boilers should not operate with a return water temperature less than 110°F, 43°C atmospheric combustion, (125°F, 52°C fan assist combustion – Dominator/LCD/Futera II), (140°F, 60°C fan assist combustion
  – Futera III/Futera XLF). If a lower temperature is required, an external bypass should be installed to prevent condensation (bypass and valve arrangement included on the Futera Fusion Series). The manufacturer’s warranty does not cover damage done by condensation.

(b) to any expenses, including labor or material, incurred during removal or reinstallation of the Product or parts thereof.
(c) to damage as a result of settlement, distortion, collapse, or cracking of any foundation area, beams or pipes surrounding the Product.
(d) to any workmanship of any installer of the Product; or to Products installed outside the continental United States or Canada.

This limited warranty is conditional upon:
(a) shipment, to the Manufacturer, of that part of the Product thought to be defective. Goods can only be returned with prior written approval from the Manufacturer. All returns must be freight prepaid.
(b) determination in the reasonable opinion of the Manufacturer that there exists a defect in material or workmanship.

Repair or replacement of any part under this Limited Warranty shall not extend the duration of the warranty with respect to such repaired or replaced part beyond the stated warranty period.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EITHER EXPRESS OR IMPLIED, AND ALL SUCH OTHER WARRANTIES, INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY DISCLAIMED AND EXCLUDED FROM THIS LIMITED WARRANTY. IN NO EVENT SHALL THE MANUFACTURER BE LIABLE IN ANY WAY FOR ANY CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES OF ANY NATURE WHATSOEVER, OR FOR ANY AMOUNTS IN EXCESS OF THE SELLING PRICE OF THE PRODUCT OR ANY PARTS THEREOF FOUND TO BE DEFECTIVE. THIS LIMITED WARRANTY GIVES THE ORIGINAL OWNER OF THE PRODUCT SPECIFIC LEGAL RIGHTS. YOU MAY ALSO HAVE OTHER RIGHTS WHICH MAY VARY BY EACH JURISDICTION.

260 North Elm Street
Westfield, MA 01085
Phone: 833-265-5371
7555 Tranmere Drive
Mississauga, Ontario L5S 1L4 Canada
Phone: 905-670-5888
www.rbiwaterheaters.com

References

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