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Noritz N-0931M, Owner'S Manual, Page: 10 / 26

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10

Initial Operation

Before the first use of your water heater, make the following preparations.

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 fixture

2

Turn on the power.

CLOSED

4

OPEN

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07.2.5, 9:24 PM

Page 10

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Summary of Contents for N-0931M

Page 1: ...rves the right to discontinue or change at any time the designs and or specifications of its products without notice Low NOx Approved by SCAQMD CERTIFIED R 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 buil...

Page 2: ...ardous 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 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 Vapors from flammable liquids will explode and...

Page 3: ...ot plug or remove the valve Failure to follow these instructions can result in fire or explosion and personal injury or death Prohibited Continued 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...

Page 4: ...indoor environment by means of adding walls and ceiling Do not en close using corrugated sheets etc Carbon monoxide poisoning or fire may occur as a result Exhaust vent terminal Unit Prohibited Do not place combustibles such as laundry newspapers oils etc near the heater or the exhaust vent terminal Exhaust vent terminal indoor installation Prohibited Carbon Monoxide Poisoning Hazard Do not instal...

Page 5: ...bited Be sure to do Do not allow small children to play unsupervised in the bathroom Do not allow small children to bathe unsupervised Do not use hair spray or spray detergent in the vicinity of the heater Do not touch the power cord with wet hands Prohibited Electric Shock Don t touch with a wet hand Prohibited Contact Noritz before using with a solar pre heater Contact a qualified service techni...

Page 6: ...ead below for appropriate measures Repairs for damage caused by freezing are not covered by the warranty This unit is only approved for installation up to 4500 ft above sea level For installations at higher elevations contact Noritz America for Instructions Check ignition during use and extinction after use Take necessary measures to prevent freezing of water and leakage of gas when leaving the un...

Page 7: ... Initial Operation 10 How to Use Muting the Remote Controller 11 Setting and Using the Water Heater 12 Flow Meter Alarm 14 Adjusting the Maximum Output Temperature 16 Preventing Damage from Freezing 17 Regular Maintenance 19 Troubleshooting 21 Follow up Service 25 Specifications 26 Contents ...

Page 8: ... shows an example of installation The exact installation configuration may be slightly different Main Unit Flue Collar Front Cover Air Inlet Water Supply Valve Gas Supply Valve Water Drain Valve with Water Filter Inside Water Inlet p 20 Pressure Relief Valve General Parts ...

Page 9: ...Buttons Before use remove the protective sheet from the remote controller surface Temperature Setting Ex 110 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 displayed depends on how the water heater is set A number will flash if a failure occurs p 24 Prior...

Page 10: ...er make the following preparations 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 fixture 2 Turn on the power CLOSED 4 OPEN ...

Page 11: ...Use Muting 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 muted The high temperature warning tone when setting the unit to 125 F or higher will not emit a sound when muted ...

Page 12: ...vere 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 ask professional person When setting the unit to 125 F or higher the temperature display will flash for 10 seconds and emit a tone as a high temperature warning Take caution when using the uni...

Page 13: ...ecommended setting temperature is 120 F or less For applications that occasionally require a higher temperature setting locate the remote controller in a convenient location Consult local codes for minimum operating temperatures 100 105 110 115 120 125 130 135 140 145 150 160 170 180 Shower hot water supply etc Washing dishes etc High temperature Contact the installer or Noritz America when settin...

Page 14: ... Button 1 Plug the bath drain Preparation Starting with the power off Always check temperature setting before use Hot Cold On The temperature will be displayed on the remote control thermostat Previous set temperature example 110 F On Check the indicator lights Water temperature 1 ...

Page 15: ...ons 10 60 In 5 gallon intervals 70 100 In 10 gallon intervals or 990 gallons Note The alarm will not sound if it is set for 990 gal Note The alarm will not sound if it is set for 990 gal On Flow meter setting will be flashing ex 45 gal The level can only be adjusted while the indicator is flashing After ten seconds the remote will again display the temperature Off If the flow meter alarm is being ...

Page 16: ... water supply temperature can be changed to 100 F 105 F 110 F 115 F 120 F 125 F 130 F 135 F or 140 F 2 Turn off the power Off 1 Set the Power button to ON when continuing to using the unit as is Otherwise let the unit sit for 30 sec 4 Tone sounds after 2 sec When 2 or more units are connected with a system controller the upper limit function is disabled The full range of temperature options will b...

Page 17: ... on the remote controller display If multiple units are being used drain one minute for each unit It is possible that a different number may be displayed on the remote controller but as long as it is flashing you may continue 4 Partially close the hot water fixture but keep a small amount of hot water running 0 1 gal minute or about 0 2 thick If there is a mixing valve set it to the highest level ...

Page 18: ...f the unit 6 When the water is completely drained replace all drain plugs and close the hot water fixtures If the water heater will not be used for a long period of time Drain the water Drain the water as follows To avoid burns wait until the equipment cools down before draining the water The appliance will remain hot after it is turned off High Temperature Drain water into a bucket to prevent wat...

Page 19: ...ant but not water proof Keep it as dry as possible Regular Maintenance 1 Periodic Inspection Check For laundry newspaper timber oil spray cans and other combustible materials Equipment Remote Controller Wipe the surface with a wet cloth For abnormal sounds during operation For abnormalities in external appearance discoloration or flaws For water leaks from the equipment and piping For dust or debr...

Page 20: ...in valve with water filter with a brush under running water 6 Replace the water drain valve with water filter and close the drain plugs Take care not to lose the packing 7 Close all hot water fixtures 8 Open the water supply valve and check that water does not leak from the drain plugs or water drain valve with water filter Water Supply Valve Inlet Packing Water drain valve with water filter Optio...

Page 21: ...opriate p 12 and p 13 If the water supply temperature is high it is possible for the temperature to be higher 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 If the supply water goes through a solar pre heating system it is possible for the temperature...

Page 22: ...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 restarted the tub will fill more The flow meter alarm does not sound even when filled to the set amount The flow meter alarm is set to sound when hot water is continuously discharged for the set volume of water If mixing valves are used or if cold water is mixed with hot wat...

Page 23: ...off Is the hot water fixture sufficiently 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 white smoke is actually steam White smoke comes out of the exhaust vent on a cold day Other Sounds The plastic on the surface or buttons of the remote controller h...

Page 24: ...is solved Contact the nearest Noritz agent Abnormal combustion Contact Noritz America if Any other error code appears An error code is indicated again after the above actions were followed There are any other questions Troubleshooting 3 The hot water is turbid This is harmless Small bubbles appear as the air in the water is heated and depressurized rapidly to atmospheric pressure The water appears...

Page 25: ...Noritz America Technical Support at 866 766 7489 If you want to reinstall the appliance at a different location confirm that the gas and power supply indicated on the rating plate are available at the new location If you are not sure consult the local utility company If you move to a region that uses a different type of gas conversion and adjustment of the appliance will be necessary This work mus...

Page 26: ...changed without prior notice The capacity may differ slightly depending on the water pressure water supply piping conditions and water temperature Performance Item Model Name Type Ignition Operating Pressure Minimum Flow Rate Dimensions Weight Water Holding Capacity Accessories Installation Air Supply Exhaust Connection Sizes Power Supply Materials Water Inlet Hot Water Outlet Gas Inlet Supply Con...

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