Noritz EZ111 Owner'S Manual Download Page 1

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FOR USE IN RESIDENTIAL OR

MANUFACTURED HOME APPLICATIONS.

Thank you for purchasing this Noritz Tankless Gas Water Heater.

Before using:
• Read this manual completely for operation instructions.

• To ensure full coverage by the Noritz America Corporation

Limited Warranty service, see the warranty registration

information (page 22), and then visit the Noritz website

(www.noritz.com/warranty) to register your product.

• Keep this manual where it can be found whenever necessary

because the warranty registration information is included.

(See page 22)

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.

NORITZ America Corporation

Owner’s Guide

CONDENSING TANKLESS GAS Water Heater

Models : EZ111DV

(GQ-C3260WX-FF US)

EZ98DV

(GQ-C2860WX-FF US)

• 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.

If the information in this manual is not followed exactly, a fire or explosion may result

causing property damage, personal injury or death.

WARNING

Low NOx Approved by SCAQMD

14 ng/J or 20 ppm

(Natural Gas Only)

SBB8163-1

Rev. 11/20

Summary of Contents for EZ111

Page 1: ...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 NORITZ America Corporation Owner s Guide CONDENSING TANKLESS GAS Water Heater Models EZ111DV GQ C3260WX FF US EZ98DV GQ C2860WX FF US Do not store or use gasoline or other flammable vapors and liquid...

Page 2: ... area near the Water Heater Keep flammable products 1 Far away from the Water Heater 2 In approved containers 3 Tightly closed 4 Out of children s reach Vapors 1 Cannot be seen 2 Vapors are heavier than air 3 Go a long way on the floor 4 Can be carried from other rooms to the main burner by air currents After the Water Heater has been out of use for a long time make sure that you fill the condensa...

Page 3: ...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 Check the temperature of the running hot water before entering the shower Check the temperature before stepping into the bathtub To prevent burns or scalding turn off the button and wait until the appliance cools before performing maintenance WARNING Do not p...

Page 4: ... or cause incomplete combustion damage to the electrical components or electric leakage Do not turn off the Water Heater while someone is bathing 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 appliance Do not touch the exhaust vent pipe and exhaust vent terminal during or immediately after operation of the...

Page 5: ...ts For single handle fixtures you d turn the handle to the left This appliance is configured for installations up to 2 000 ft above sea level without changes For installations above 2 000 ft above sea levels contact Noritz America for Instructions NOTICE Do not disassemble the Remote Controller Do not use chlorine based acidic alkaline detergents organic solvents such as benzine and thinner or Mel...

Page 6: ...ion 9 Using the Water Heater 9 Setting Hot Water Temperature 10 Customizable Settings 11 Limiting the Maximum Output Temperature 11 Muting the Remote Controller 11 Flow Meter Alarm 11 Preventing Damage from Freezing 12 Regular Maintenance 14 Troubleshooting 16 Follow up Service 19 Specifications 21 Warranty 22 Contents ...

Page 7: ...t gas and the resulting water is discharged from the condensate drain pipe approximately 2 gallons h 7 5 L h maximum It is not a water leak Do not plug or block the drain line as it must always be allowed to freely flow Note The condensate discharged is acidic with a pH level of approximately 2 3 A condensate neutralizer may be required by local code prior to disposal During combustion white steam...

Page 8: ...llation Manual 1 POWER Button Indicator For turning the Water Heater ON OFF 2 SETTINGS Button For setting the flow meter alarm and other settings 3 Buttons For setting the hot water temperature the flow meter alarm and other settings 4 PRIORITY Indicator When this indicator is displayed the hot water temperature can be set 5 BURNER ON Indicator When burning the indicator is displayed 6 Temperature...

Page 9: ...caution when using the Water Heater again after setting to 125 F 52 C or higher Always check the set temperature before use Do not allow anyone to change the water temperature while hot water is running DANGER Operation The POWER indicator is displayed The previously set hot water supply temperature is shown The setting temperature displayed may vary from the actual temperature at the fixture depe...

Page 10: ...rature is set e g 125 F Setting Hot Water Temperature NOTE Hot water temperatures shown are approximate and may differ from the actual temperature at the fixture depending on external factors such as the season and length of piping in the system When low temperatures are set for washing dishes etc if the incoming water temperature is already quite high it may be difficult to ensure the outgoing wa...

Page 11: ... to prevent overfilling Operation Check the current setting temperature The flow meter setting will be blinking The alarm will not sound if it is set for 990 gal 990 L The level can only be adjusted while the flow meter setting is blinking After 10 seconds the Remote Controller will again display the temperature The flow meter alarm cannot be muted The high temperature warning tone when setting th...

Page 12: ...pipes even in warm environments Be sure to read below for appropriate measures Repairs for damage caused by freezing are not covered by the warranty NOTICE Freezing is prevented within the device automatically by the freeze prevention heater NOTE Remember to set mixing valves and fixtures to their original levels before using the Water Heater again to prevent scalding If there is still a risk that...

Page 13: ... displayed 4 Press the button The display will change from oF to on 5 Close the water supply valve 6 Fully open all hot water fixtures faucets 7 Open all drain plugs and drain the water out of the Water Heater 8 When the water is completely drained reattach all drain plugs and close the hot water fixtures faucets e g 120 F Hot water fixture faucet 9 Close the gas valve and disconnect the electrica...

Page 14: ... During normal use of the Water Heater condensate will begin to discharge from the condensate drain pipe within 15 minutes of use However depending on the season and or installation site conditions it may take longer NOTE If water does not appear at the end of the drain line a qualified service technician must clean the condensate line Do not touch the power cord with wet hands WARNING Periodic In...

Page 15: ... acidic alkaline detergents organic solvents such as benzine and thinner or Melamin Sponge to clean the Remote Controller discoloration deformation scratches or cracks may occur The Remote Controller is water resistant but not water proof Keep it as dry as possible Water Drain Valve with Water Filter If the water drain valve with water filter is covered with debris the hot water may not run smooth...

Page 16: ...ess Sulfate 250 mg L or less Residual chlorine 4 mg L or less Source EPA National Secondary Drinking Water Regulations 40 CFR Part 143 3 Maximum limit suggested by Noritz Water Quality and Maintenance Initial Operation Troubleshooting The Water Heater does not attempt to ignite when water is running Check for reversed plumbing or crossed pipes Check the water filter See page 15 The Water Heater at...

Page 17: ... When hot water is demanded at other fixtures the amount available may be reduced The maximum flow available from EZ111DV GQ C3259WX FF US is 8 7 GPM 33 L min at a 45 F 25 C temperature rise The maximum flow available from EZ98DV GQ C2859WX FF US is 7 6 GPM 29 L min at a 45 F 25 C temperature rise Pressure fluctuations and other plumbing conditions can cause the temperature and pressure at a fixtu...

Page 18: ...questions Error Code 11 Cause Ignition failure Action Check whether the gas valve is open Press the button to turn the Water Heater off open a hot water fixture faucet and turn the Water Heater back on If the blinking number doesn t return the problem is solved Error Code 90 Cause When supplying combustion air from the indoors The air supply vent may be clogged Action Check air supply vent for blo...

Page 19: ...lled in a location where working on the Water Heater may be dangerous Contact a plumber If you move to a region that uses a different type of gas or if the local gas supply is converted replacement of the gas manifold and adjustment of the appliance will be necessary This work must be performed by either Noritz or a qualified service agency and will be charged for even during the warranty period T...

Page 20: ...s will be made to ensure safe and efficient operation 6 Once this is completed a final gas leak check will be performed to confirm that all parts have been securely installed NOTE Make sure that all parts are replaced and properly installed by a qualified service agency A Noritz Remote Controller and a digital gas manometer are required to complete the installation Do not proceed if this Water Hea...

Page 21: ...Prevention 114 W NG 75 W LP 64 W Freeze Prevention 114 W Maximum Current 4 Amps Materials Casing Front Cover Hot dipped zinc aluminum magnesium alloy coated steel w Polyester Coating Casing Zincified Steel Plate Polyester Coating Flue Collar PP Primary Heat Exchanger Stainless Steel Sheeting Stainless Steel Tubing Secondary Heat Exchanger Stainless Steel Sheeting Stainless Steel Tubing Safety Devi...

Page 22: ... is the one used for a commercial capacity Condition C above 8 10 years or 12 500 operational burn hours whichever occurs first 9 5 years or 6 500 operational burn hours whichever occurs first 10 A reasonable labor rate will be paid by Noritz to service repair professional on Noritz approved Warranty repairs subject to Noritz s schedule of approved labor allowances Warranty Period for Heat Exchang...

Page 23: ...RICA CORP 11160 Grace Avenue Fountain Valley CA 92708 Phone 714 433 2905 Fax 714 241 1514 4 What is Not Covered by this Warranty Please refer to the Installation Manual and Owner s Guide supplied with your new Noritz Product In addition this Warranty becomes null and void if any of the following are determined to be contributing factors to failure of the Product under this Warranty Product purchas...

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