NORITZ EZ111DV Tankless Gas Water Heater Owner’s Manual
- June 16, 2024
- NORITZ
Table of Contents
NORITZ EZ111DV Tankless Gas Water Heater
FOR USE IN RESIDENTIAL OR MANUFACTURED HOME APPLICATIONS.
WARNING
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
- Do not try to light any appliance.
- Do not touch any electrical switch; do not use any phone in your building.
- Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer, service agency or the gas supplier.
Thank you
Thank you for purchasing this Noritz Tankless Gas Water Heater. Before using,
please:
Read this manual completely for operation instructions.
Completely fill out the warranty registration card (included separately) and
mail the detachable portion to Noritz America Corporation.
Keep this manual (and the remainder of the warranty registration card) where
it can be found whenever necessary.
Installation must conform with local codes, or in the absence of local codes,
the National Fuel Gas Code, ANSI Z223.1/NFPA 54 – latest edition and/or the
Natural Gas and Propane Installation Code CSA B149.1 – latest edition.
When applicable, installation must conform with the Manufactured Home
Construction and Safety Standard, Title 24 CFR, Part 3280 or the Canadian
Standard CAN/CSA-Z240 MH Mobile Homes, Series M86. Noritz America reserves the
right to discontinue, or change at any time, the designs and/or specifications
of its products without notice.
Important Safety Information-1
To prevent damage to property and injury to the user, the icons shown below
will be used to warn of varying levels of danger.
Every indication is critical to the safe operation of the water heater and
must be understood and observed. Potential dangers from accidents during
installation and use are divided into the following four categories. Closely
observe these warnings; they are critical to your safety.
Icons warning of risk level
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER
DANGER indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
CAUTION
CAUTION used without the safety alert symbol indicates a potentially
hazardous situation which, if not avoided, may result in property damage.
Other icons
Electric Shock.| High Temperature.| Be sure to do.| Ground.|
---|---|---|---|---
Prohibited| No flame.| Don’t touch.| Don’t disassemble the equipment.|
Don’t touch with a wet hand.
DANGER
Prohibited
Vapors from flammable liquids will explode and catch fire causing death or
severe burns.
Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the water heater.
Keep flammable products:
- Far away from the water heater.
- In approved containers.
- Tightly closed.
- Out of children’s reach.
Vapors:
- Cannot be seen.
- Vapors are heavier than air.
- Go a long way on the floor.
- Can be carried from other rooms to the main burner by air currents.
Prohibited
Hot Water Heater temperatures over 125°F (52°C) can cause severe burns
instantly or death from scalding.
Children, disabled and elderly are at the highest risk of being scalded.
Feel water temperature before bathing or showering.
Temperature limiting valves are available, consult with installer.
Prohibited
Do not use the water heater if the intake/ exhaust pipe is displaced, has holes, is clogged or is corroded.
This will cause carbon monoxide poisoning and a potential fire hazard.
Prohibited
Do not allow anyone to change the water temperature while hot water is being
used.
To prevent scalding, do not change the water temperature to a higher setting.
Be sure to do.
When supplying combustion air from the indoors] Check whether or not the air
supply vent is blocked with dust, trash, a towel, or the like. Blocking the
opening may result in incomplete combustion.
Be sure to do.
After the water heater has been out of use for a long time make sure that you
fill the condensate trap with water.
This is to prevent dangerous exhaust gases from entering the building. Failure
to fill the condensate trap could result in severe personal injury or death.
(Refer to page 20 for further instructions.)
WARNING
A. This water heater does not have a pilot. It is equipped with an
ignition device that automatically lights the burner. Do not try to light the
burner by hand.
B. BEFORE OPERATING
smell all around the water heater area for evidence of leaking gas. Be sure to
smell next to the floor because some gas is heavier than air and will settle
on the floor.
WHAT TO DO IF YOU SMELL GAS.
- Do not try to light any appliance.
- Do not touch any electrical switch; do not use any phone in your building.
- Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to turn the gas valve knob. Never use tools. If the
knob will not turn by hand, don’t try to repair it. Call a qualified service
technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this water heater if any part has been under water.
immediately call a qualified service technician to inspect the water heater
and to replace any damaged parts.
Be sure to do.
When a gas leak is noticed:
- Stop use immediately.
- Close the gas valve. [Indoor Installation]
- Open windows and doors
Be sure to do
If you detect abnormal combustion or abnormal odors, or during an earthquake, tornado or fire:
- Turn off the hot water supply.
- Turn off the power to the water heater. 3. Turn off gas and water supply valve.
- Call the nearest Noritz agent.
Prohibited
If the temperature and pressure relief valve is dripping or leaking, have a
qualified service technician replace it.
Do not plug or remove the valve. Failure to follow these instructions can
result in fire or explosion, and personal injury or death.
High Temperature.
Check the temperature of the running hot water before entering the shower.
Important Safety Information-2
WARNING
Prohibited
Do not place the exhaust vent terminal in an indoor environment by means of
adding walls and ceiling (Do not enclose using corrugated sheets, etc.
Be sure to do
Leave the proper clearance between the water heater and nearby objects (trees,
timber, boxes with flammable materials etc.).
[Indoor Installation]
[Outdoor Installation]
Prohibited
Do not place combustibles such as laundry, newspapers, oils etc. near the
heater or the exhaust vent terminal.
Prohibited
Carbon Monoxide Poisoning Hazard. Do not install this water heater in a
recreational vehicle or on a boat. Do not install this water heater in a
mobile home when using SV conversion kit (“-SV” configuration)
Prohibited
Do not use combustible chemicals such as oil, gasoline, benzene etc. in the
near the heater or the exhaust vent terminal.
Prohibited
Do not store or use gasoline or other flammable vapors and liquids in the
vicinity of this or any other appliance
Prohibited
Do not place or use a spray can near the water heater or the exhaust vent
terminal.
Be sure to do
Be sure the gas/power supplied matches the gas on the rating plate.
Be sure to do
Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
Prohibited
If this unit will be installed in a location where hair spray or aerosols will
be used, locate the unit in a separate area that is supplied with fresh air
from outdoors.
Prohibited
Do not use hair spray or spray detergent in the vicinity of the heater.
Be sure to do
[When supplying combustion air from the indoors] Check the air supply opening
for dust or obstructions.
Prohibited
Do not allow small children to play unsupervised in the bathroom. Do not allow
small children to bath unsupervised.
Do not touch the power cord with wet hands.
Be sure to do
Consult the nearest Noritz agent if the water heater location needs to be
changed.
Don’t disassemble the equipment
Contact a qualified service technician for any necessary repairs, service or
maintenance.
Be sure to do
Contact Noritz before using with a solar pre-heater
California Proposition 65 lists chemical substances known to the state to cause cancer, birth defects, death, serious illness or other reproductive harm. This product may contain such substances, be their origin from fuel combustion (gas, oil) or components of the product itself.
The gas conversion kit shall be installed by a qualified service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. The information in the instructions must be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury, or death. The qualified service agency is responsible for the proper installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as specified in the manufacturer’s instructions supplied with the kit.
CAUTION
Ground.
Be sure to electrically ground the unit.
Be sure to do
Keep power cord free of dust.
Prohibited
Do not use the water heater for other than hot water supply, shower and bath.
Prohibited
Do not use a broken or modified power cord. Do not bind, bend or stretch power
cords. Do not scratch, modify, or subject them to impact or force.
Be sure to do
To prevent burns or scalding, turn off the power button and wait until the
equipment cools before performing maintenance.
Prohibited
Do not turn off the water heater while someone is bathing.
Prohibited
Do not cover the water heater and the exhaust vent terminal, store trash or
debris near it, or in any way block the flow of fresh air to the unit.
Prohibited
Do not install in locations where excessive dust or debris will be in the air.
Don’t touch.
Do not touch the exhaust vent pipe and exhaust vent terminal during or
immediately after operation of the water heater.
Prohibited
Do not use condensate, discharged from the drain pipe, for drinking or for
consumption by animals.