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6

Important Safety Information

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3

CAUTION

Do not drink water that has been inside the 

unit for an extended period of time. Do not 

drink the first use of hot water from the 

unit in the morning.

Clean the filter on the water inlet as 

frequently as required by the quality of  

your local water.

Keep the area around the unit clean.

If boxes, weeds, cobwebs, cockroaches etc. are in 

the vicinity of the unit, damage or fire can result.

Do not install the equipment where the 

exhaust will blow on walls or windows.

Problems resulting from scale formation 

are not covered by the warranty.

This unit is only approved for installation 

up to 4500 ft. (1350m) above sea level.

For installations at higher elevations, contact Noritz 

America for Instructions.

Check ignition during use and extinction 

after use.

If the water supply is in excess of 12 grains 

per  gallon  (200  mg/L)  of  hardness,  acidic 

or  otherwise  impure,  treat  the  water  with 

approved  methods  in  order  to  ensure  full 

warranty coverage. ( p.37)

Preventing damage from freezing ( p.32)

Damage can occur from frozen water within the 

device and 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.

Take necessary measures to prevent 

freezing of water and leakage of gas when 

leaving the unit unused for long periods of 

time. ( p.33)

Do not use parts other than those specified 

for this equipment.

If it is snowing, check the exhaust vent 

terminal for blockage.

Do not disassemble the remote controller.

Do not use benzene, oil or fat detergents  

to clean the remote controller.

This may cause deformation.

Do not get the remote controller wet.

Although it is water resistant, too much water can

cause damage.

Do not splash water on the remote 

controller. Do not expose the remote 

controller to steam.

Do not locate the remote controller near stoves or 

ovens, this may cause damage or failure.

Do not run water through the unit when 

unit is not on.

When discharging hot water, make sure the unit is ON.

If water is run through the unit with the unit

OFF, water may condense inside the unit and cause

incomplete combustion or damage to the internal

electrical components.

For single-handle fixtures, you’d turn the handle to 

the left.

Summary of Contents for EZ111DV

Page 1: ...MANUFACTURED HOME APPLICATIONS SBB80T9 Thank you for purchasing this Noritz Tankless Gas Water Heater Before using please Read this manual completely for operation instructions Completely fill out the...

Page 2: ...us situation which if not avoided may result in property damage CAUTION Be sure to do Ground Electric Shock DANGER Icons warning of risk level Important Safety Information 1 This is the safety alert s...

Page 3: ...ob 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 unde...

Page 4: ...f the heater Prohibited Prohibited Leave the proper clearance between the water heater and nearby objects trees timber boxes with flammable materials etc Be sure to do Indicates suggested clearances f...

Page 5: ...turn off the water heater while someone is bathing 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 for...

Page 6: ...ge can occur from frozen water within the device and pipes even in warm environments Be sure to read below for appropriate measures Repairs for damage caused by freezing are not covered by the warrant...

Page 7: ...it 9 Remote Controller 10 Initial Operation 11 How to Use Setting and Using the Water Heater 12 Flow Meter Alarm 14 Muting the Remote Controller 16 Adjusting the Maximum Output Temperature 17 Preventi...

Page 8: ...ion The above illustration shows an example of installation The exact installation configuration may be slightly different Front Cover Inside Water Inlet p 36 Pressure Relief Valve Intake Pipe Exhaust...

Page 9: ...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 pr...

Page 10: ...F Flow Meter Setting The display will flash after hitting the flow meter alarm set button p 15 Error Code When this indicator is lit the hot water temperature can be set p 12 What is actually displaye...

Page 11: ...e following Follow steps 1 through 4 1 Open the water supply valve Open a hot water fixture to confirm that water is available and then close the fixture again 3 Open the gas supply valve Hot water fi...

Page 12: ...ns 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...

Page 13: ...temperatures 100 105 110 115 120 125 130 135 140 Shower hot water supply etc Washing dishes etc High temperature The maximum output temperature can be set using the remote controller p 17 C F The tem...

Page 14: ...used to indicate when a tub is full If any hot water is being used besides what is going into the tub the alarm will sound before the tub is full If there was water in the tub before the fill began o...

Page 15: ...will not sound if it is set for 990 gallon On Flow meter setting will be flashing ex 45 gallon Off The alarm will sound when the set level has been reached Stop the water The level can only be adjuste...

Page 16: ...ting the Remote Controller Initial factory setting is with sound Sound Muted No sound after 5 sec 1 Hold the Power On Off Button for five seconds Tone sounds after 5 sec The flow meter alarm cannot be...

Page 17: ...n The upper limit of the hot water supply temperature can be changed to For Fahrenheit F 100 F 105 F 110 F 115 F 120 F 125 F 130 F 135 F or 140 F For Celsius C 37 C 38 C 39 C 40 C 41 C 42 C 43 C 44 C...

Page 18: ...30 minutes later In general it is not advisable to run water through the unit when it is OFF p 6 but in this case freeze prevention is more important Remember to set mixing valves and fixtures to thei...

Page 19: ...1 Open the drain plug 1 2 Open the drain plug 2 and 3 and then drain the water out of the unit 6 Close the gas valve 1 When the water is completely drained replace all drain plugs and close the hot w...

Page 20: ...egin to discharge from the drain pipe within 15 minutes of use However depending on the season and or installation site conditions it may take longer If water does not appear at the end of the drain l...

Page 21: ...the surface with a wet cloth Be sure to do To prevent burns or scalding turn off the power button and wait until the equipment cools before performing maintenance CAUTION Check For abnormal sounds du...

Page 22: ...the left to open Not necessary to remove Wait approximately 30 seconds About 0 65 gallon 2 5 L will drain out After that remove the drain plug 3 4 Take the water drain valve with water filter out of...

Page 23: ...isplayed on the remote controller after the set time period has been reached When the code is displayed the Heat Exchanger needs to be flushed to prevent damage from Scale Build up Refer to the Proced...

Page 24: ...than the temperature set on the remote controller If only a small amount of hot water is demanded it is possible for the temperature to be higher than the temperature set on the remote controller The...

Page 25: ...ss more than the set amount When hot water is used for other fixtures while filling the bath tub the tub will not fill as much If there is water in the tub already or when filling is stopped and resta...

Page 26: ...y open Is the gas being cut off by the gas meter Can other gas devices such as stoves be used For LP Is there enough gas in the tank Can other gas devices such as stoves be used This is normal The whi...

Page 27: ...of copper ion contained in the water and fat furring However there are not problems concerning health Coloration of the bath tub wash basin can be prevented by cleaning frequently Continued Frequent...

Page 28: ...nit back on If the flashing number doesn t return the problem is solved This unit is equipped with an automatic service reminder Excessive scale build up may cause premature failure of the heat exchan...

Page 29: ...e may be rejected if the water heater is installed in a location where working on the unit may be dangerous Contact a plumber We will need to know The Model check the rating plate See p 4 for the loca...

Page 30: ...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...

Page 31: ...ing PP Stainless Steel 316L Stainless Steel 316L Flame Rod High Limit Switch Lightning Protection Device ZNR Freezing Prevention Device Fan Rotation Detector Remote Controller Remote Controller Cord A...

Page 32: ...Maximum Performance 180 000 btuh Maximum Performance 199 900 btuh Maximum Performance 180 000 btuh EZ98DV GQ C2859WX FF US 8 7 GPM 33 L min 7 6 GPM 29 L min 0 5 11 1 GPM 2 42 L min 0 5 9 8 GPM 2 37 L...

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