Noritz GQ-2039WS ET US Installation Manual Download Page 22

22

Lighting Instructions

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.  

1. Read the safety information in the installation manual or on the side of the water heater.  

2. Turn off all electrical power to the unit.  

3. Do not attempt to light the burner by hand.  

4. Turn the gas control manual valve (external to the unit) clockwise to the off position.  

5. Wait five minutes to clear out any gas. If the smell of gas remains, stop, and follow the instructions 

on page 3 of Owner's Guide.  

6. Turn the gas control manual valve counterclockwise to the on position.  

7. Turn on electric power to the unit.  

8. The unit will now operate whenever hot water is called for.  If the unit will not operate, follow the 

shutdown instructions and call a service technician.

Shutdown Instructions

1. Stop any water demand.

2. Turn off electric power.  

3. Turn the gas control manual valve clockwise to the off position.

Should overheating occur, or the gas supply fail to shut off, turn off the manual control valve to the appliance.

A fire or explosion may result if these instructions are not followed, which may cause lose of 

life, personal injury or property damage.

WARNING

Handling after trial operation

•  If the unit will not be used immediately, close off all gas and water shutoff valves, drain all of  

the water out of the unit and the plumbing system to prevent the unit and system from freezing, 

and bleed the gas out of the gas line.

  Freezing is not covered by the warranty.

CAUTION

Summary of Contents for GQ-2039WS ET US

Page 1: ...ater heater safely read this installation manual carefully and follow the in stallation instructions Failures and damage caused by erroneous work or work not as instructed in this manual are not cover...

Page 2: ...cessories listed below are not included with the units but may be necessary for installation Cross Recessed Head Screw Q ty Shape Part Part Shape Q ty 1 Remote Controller Cord 26ft 8m 1 Isolation Valv...

Page 3: ...nce The pan must not restrict combustion air flow As with any water heating appliance the potential for leakage at some time in the life of the product does exist The manufacturer will not be responsi...

Page 4: ...ous materials or corrosion of aluminum materials Do not locate the vent termination directed towards a window or any other structure which has glass or wired glass facing the termination Install in a...

Page 5: ...the unit in a location where the unit is out of reach such as the wall of the second floor When installing the unit in a common side corridor provide a clearance of 47 1 190mm or more in front of the...

Page 6: ...de 2 In accordance with the current ANSI Z223 1 NFPA 54 National Fuel Gas Code A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwelling...

Page 7: ...o not drop or apply unnecessary force to the device when installing Internal parts may be damaged and may become highly dangerous Install the unit on a vertical wall and ensure that it is level Locati...

Page 8: ...ons or concerns CAUTION Regulators Ensure that all gas regulators used are operating properly and providing gas pressures within the specified range of the water heater being installed Excess gas inle...

Page 9: ...ing to total btuh demand of the building and length from the meter or regulator so that the following supply pressures are available even at maximum demand WARNING Natural Gas Supply Pressure Min 4 WC...

Page 10: ...let C Outlet D Outlet E Section 4 Table 2 For 8 WC 10 5 WC initial supply pressure Maximum Natural Gas Delivery Capacity 3 0 Pressure Drop Values in Table are in Cubic Feet of Gas per Hour 0 60 Specif...

Page 11: ...nce to verify all appliances are receiving a minimum of 5 WC for NG or 8 WC for LP If all appliances are not receiving the minimum inlet pressure the gas piping system may need to be changed CAUTION P...

Page 12: ...be connected to any heating system or components previously used with a nonpotable water heating appliance When water is required in one part of the system at a higher temperature than in the rest of...

Page 13: ...r on the inlet If this is not done local boiling will occur inside the water heater causing abnormal sounds and decreasing the durability of the heat exchanger Freeze Prevention Freezing is prevented...

Page 14: ...Guidelines If this water heater will be installed in an application where the supply water is hard the water must be treated with either the Noritz H2Flow or ScaleShield or a water softener Refer to...

Page 15: ...hed If the error code C is displayed and flashing in the Display Window please contact Noritz America 855 960 3434 Connect the blue connector marked FLUSH for flushing on the Circuit Board when flushi...

Page 16: ...pump The flushing solution needs to be rinsed and cleaned out of the water heater Below is the way to rinse and clean the flushing solution 1 Remove both drain hoses H2 and H3 from the bucket And the...

Page 17: ...essary to prevent cycling 5 If the system requires water for space heating at a higher temperature than for other uses means such as a mixing valve shall be provided to temper the water for the other...

Page 18: ...The electrical supply required by the water heater is 120VAC at 60 Hz The power consumption may be up to 182W Use an appropriate circuit Do not disconnect the power supply when not in use When the po...

Page 19: ...ter back into operation press the Power On Off Button on the optional remote controller To keep the water heater off let the unit sit for 30 sec to return to the original display When changing the tem...

Page 20: ...by pressing the Power On Off Button on the remote controller 2 Disconnect then reconnect electrical power to the water heater 3 Press the Flow Meter Alarm Set Button and hold it in for 2 seconds or mo...

Page 21: ...ation air The pressure relief valve must be operated once a year to ensure that it is functioning properly and there is no obstruction Turn the power off to the unit before opening the relief valve an...

Page 22: ...ower to the unit 8 The unit will now operate whenever hot water is called for If the unit will not operate follow the shutdown instructions and call a service technician Shutdown Instructions 1 Stop a...

Page 23: ...7mm 1 6 40mm 2 0 50mm 3 3 85mm 4 7 120mm 0 4 10mm 0 4 10mm 21 3 542mm 19 2 487mm 1 2 31mm 3 0 3 0 6 6 5 16 5mm OBLONG HOLE 2 0 3 0 5 6 5 13mm OBLONG HOLE HEIGHT OF EACH FITTING FROM BOTTOM OF CASE mm...

Page 24: ...Location The remote should be installed in an easily accessible location Avoid installing in a place where water or steam can come into contact with the controller Avoid locations where special chemi...

Page 25: ...ord Phillips Roundhead Wood Screw Wall Anchor 3 Remove the cover of the remote control mark the location of the screw holes and drill holes for the wall anchors 4 Insert the wall anchors screw the rem...

Page 26: ...l pipe containing the remote controller wires through the hole 4 Slide the junction box packing and the junction box over the remote controller wires and wall pipe protruding from the outside wall Wal...

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