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Noritz GQ-C3259WZ-FF US, Owner'S Manual

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Noritz GQ-C3259WZ-FF US Owner'S Manual Download Page 10

10

Indoor Installation

Outdoor Installation

Outdoor Vent Cap

*  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

General Parts -1

Intake Pipe

Exhaust Pipe

Gas Supply Valve

Drain Pipe

Discharges the condensate.

Unit

Water Drain Valve 

(with Water Filter)

Water Supply Valve

Summary of Contents for GQ-C3259WZ-FF US

Page 1: ...ED HOME APPLICATIONS SBB80TA 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 ...

Page 2: ...ous 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 ca...

Page 3: ...nob 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 lmmediately call a qualified service technician to inspect the water heater and to replace any damaged parts Continued Prohibited Check the temperature of the running hot water before enterin...

Page 4: ...e vicinity of 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 for maintenance Do not place combustibles such as laundry newspapers oils etc near the heater or the exhaust vent terminal Prohibited Do not use combustible chemicals such as oil gasoline b...

Page 5: ...t 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 force Do not touch the exhaust vent pipe and exhaust vent terminal during or immediately after operation of the water heater Do not install in locations where excessive dust or debris will be in the air...

Page 6: ... 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 equipm...

Page 7: ...c Water Heater ON or OFF Operation 20 Locking the Remote Controller 22 Customizable Settings Misc settings 23 For System Rcrc Enabling Automatic Recirculation Operation 26 Manually Starting Recirculation Operation 27 Setting the Recirculation System Operation Timer 28 Single Water Heater Only Flow Meter Alarm 30 Preventing Damage from Freezing 32 Regular Maintenance 35 Troubleshooting 38 Follow up...

Page 8: ...ler operation p 22 It is possible to automatically turn the water heater ON or OFF For recirculation systems It is possible to circulate hot water only during preferred times of day p 20 p 28 Automatically turned ON Automatically turned OFF Pi Pi 12 6 Water Heater 9 3 Basic operation The initial setting is set to Powersave dsply No 1 If you use hot water or press a button Powersave dsply is releas...

Page 9: ...ing the water heater freeze prevention p 25 Restoring Default Settings Restoring default remote controller settings The set temperature can be restricted to a maximum level to prevent high temperature settings from being selected p 23 The remote controller can be muted so that it does not emit a tone when a button is pressed Pi Pi Pi User Preferences Adjusting the Maximum Output Temperature Remote...

Page 10: ...ample of installation The exact installation configuration may be slightly different Front Cover Inside Water Inlet p 36 Pressure Relief Valve General Parts 1 Intake Pipe Exhaust Pipe Gas Supply Valve Drain Pipe Discharges the condensate Unit Water Drain Valve with Water Filter Water Supply Valve ...

Page 11: ...r 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 The condensing tankless gas water heater tends to show white steam After the exhaust gas passes through the secondary heat exchanger the low temperature and high moisture content ten...

Page 12: ...perature p 19 the flow meter alarm and other settings Remote Controller Part Number Use to change system settings or to return to the home screen If you press the menu button and press the temperature setting buttons is sometimes displayed however do not use this mode as it meant for installation or service personnel only Stops the tone that is emitted when an error occurs p 42 Cover shown in the ...

Page 13: ...n is displayed when the button is ON Normally the hot water temperature and the clock etc are displayed Flame Symbol During normal operation the set temperature is displayed Display for Recirculation Operation Display for High Temperature Temperature Setting Clock Display Error Code For systems that use recirculation operation the symbol is displayed when the power ON OFF button is set to ON It is...

Page 14: ...ned If you set the button to ON is displayed If synchro ON OFF is set to ON p 26 Water heater combined with a storage tank operation If a recirculation system is also installed hot water is always circulated in the piping to provide instant hot water when a fixture is opened If you set the button to ON is displayed Cover shown in the open position Display Screen Example System Rcrc If you press th...

Page 15: ... used ank ng e Functions other than those shown on pages 26 to 31 can be used Depending on the configuration of your system not all functions may be used When you start using the system cold water in the piping must be discharged before receiving hot water Water heater Water heater Instant hot water is available Hot water is circulated in the piping Pump Hot water storage tank Instant hot water is...

Page 16: ...ng Follow steps 1 through 4 1 Open the water supply valve Open a hot water fixture faucet to confirm that water is available and then close the fixture faucet again 3 Open the gas supply valve Hot water fixture faucet 2 Turn on the power CLOSED 4 OPEN Do not touch with wet hands ...

Page 17: ...n 10 minute increments if the button is kept pressed down If the display is left untouched for approximately 20 seconds without pressing the button the setting will be completed When the button is turned ON the home screen will be restored In the event of a power outage or after disconnecting power to the water heater when power is restored the clock on the display screen will show and the clock w...

Page 18: ...vere burns instantly or death from scalding For All Systems Using the Water Heater If is displayed hot water will be discharged at the temperature of the storage tank For systems with recirculation operation is displayed here button is ON Turn off the hot water Operation Screen Display Description Children disabled and elderly are at the highest risk of being scalded Feel water temperature before ...

Page 19: ... 20 F 10 C higher than the required temperature to ensure the appropriate fixture temperature If fixtures incorporate mixing valves set the temperature higher than usual For applications that occasionally require a higher temperature setting locate the remote controller in a convenient location Consult local codes for minimum operating temperatures Note Noritz recommends that water temperature is ...

Page 20: ...It is also possible to set only ON or OFF operation For recirculation systems circulation is started or stopped according to the button condition ON or OFF The time changes in 10 minute increments with each press of the button and then in 1 hour increments if the button is kept pressed down If the previous setting is OK press the button without setting Start time If you do not want to set the Star...

Page 21: ...0 your desired time your desired time Tips for operation Following this procedure allows for automated control of water heater operation without user interaction The setting time shown on the display of the remote controller is for example purposes only Ex 1 Both ON and OFF functions are automated Ex 2 Only ON function is automated Ex 3 Only OFF function is automated Automatically turned ON Automa...

Page 22: ... regardless if the button is ON or OFF The operations of and buttons are locked Approximately 3 seconds after locking the remote controller the display will return to the previous screen If you press these buttons Approximately 3 seconds after unlocking the remote controller the display will return to the previous screen To Unlock the Remote Controller Press and hold button for approximately 2 sec...

Page 23: ...nly display the clock when the power ON OFF button is turned OFF Setting completed To change other settings select the option and press the button To return to the home screen press the button or let it sit for approximately 20 seconds Customizable Settings Misc settings 1 For All Systems Adjusting the Maximum Output Temperature Setting completed The maximum temperature setting differs by product ...

Page 24: ...ange the setting using the buttons Select using the buttons and then press the button Press the button inside the cover Select using the buttons Press the button The Misc settings screen appears Ex Normal Setting completed 3 1 2 Error Tone Settings System dependent option The remote controller can be muted so that it does not emit a tone when an error occurs Press the button inside the cover Selec...

Page 25: ...uttons Select YES using the buttons Press the button The Misc settings screen appears button is OFF Select using the buttons and then press the button Press the button To stop draining water from the water heater If you press the button again when Drain water and Operating are alternately displayed following steps 2 to 3 the drain function will stop DO NOT SELECT AND CHANGE THE SETTING ...

Page 26: ...screen will be restored To check system status p 14 When synchro ON OFF is set to Yes recirculation can be activated automatically To change synchro ON OFF from Yes to No follow the same procedure as described below Enabling Automatic Recirculation Operation For Select Synchro ON OFF and press the button 1 Press 2 Press the button Cover shown in the open position 1 Press the button inside the cove...

Page 27: ...ing will be completed 1 2 Display when the recirculation is set to OFF 1 Select Recirc on off using the buttons 2 Press the button Display when recirculation is set to ON Cover shown in the open position 2 1 1 Press the button inside the cover Select Recirc menu using the buttons 2 Press the button Operation Screen Display Description Manually Starting Recirculation Operation For You can set this ...

Page 28: ... normally For Setting the Recirculation System O The previous setting is displayed Every time when you press the button the time changes by one hour To keep the current Start time Press the button without changing the Start time and proceed to step 4 To add additional time periods to the current setting or to cancel the previous setting 1 Press the button without setting Start time 2 Press the but...

Page 29: ...1 Carry out steps 1 to 2 2 Select Cancelled using the buttons 3 Press the button To Cancel the Recirculation System Operation Timer The timer will not activate without pressing the button If the time is not set the time setting screen is displayed p 17 Until the timer is deactivated the recirculation system will operate daily at the set Start and End times All settings are cleared 3 Adjust the tim...

Page 30: ...memory The screen returns to the home screen button is ON 1 Press the button inside the cover Select Flow meter using the buttons 2 Press the button If the display is left untouched for approximately 20 seconds without pressing the button the setting will be completed and the home screen will be restored Preparation Fill Volume Options Default setting Alarm off Operation Screen Display Description...

Page 31: ...l temperature at the fixture depending on conditions such as season or length of piping Turn off the hot water when the alarm sounds to prevent overfilling If the hot water temperature has been set so that it does not require mixing set the mixing valve to its highest setting The hot water in the bathtub may become lukewarm if it is mixed with cold water at the fixture Operation Screen Display Des...

Page 32: ... 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 their original levels before using the unit again to prevent scalding If there is still a risk that the unit will freeze drain the unit as shown on the next page Preventing Damage from Freezing 1 Freezing is prevented within the device a...

Page 33: ...se the hot water fixtures faucets 5 Open all drain plugs and drain the water out of the unit 6 Close the gas valve 1 Close the water supply valve 2 When the water is completely drained replace all drain plugs and close the hot water fixtures faucets Do not touch with wet hands Drain water into a bucket to prevent water damage 1 button is OFF 2 Press the button inside the cover Select using the but...

Page 34: ...ill begin 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 line a qualified service technician must clean the condensate line 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 prev...

Page 35: ... 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 during operation For abnormalities in external appearance discoloration or flaws For water leaks from the equipment and piping For dust and soot in the exhaust vent or exhaust vent terminal Check Check Check Check For blockage at the drain pi...

Page 36: ...ts 3 With a bucket ready remove the inlet and outlet drain plugs about 0 65 gallon 2 5 L will drain out 4 Take the water drain valve with water filter out of the inlet See illustration to below 5 Clean the water drain 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...

Page 37: ...ller 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 Procedure for flushing the Heat Exchanger in the Installation Manual or contact Noritz America for more information http support noritz com or 866 766 7489 1 2 3 4 9 When the code C1 is displayed refer to the How to select the Service ...

Page 38: ...n 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 water is too hot Have you allowed enough time for the cold water in the pipes to drain out Water takes time to become hot when turning the hot water fixture faucet No water is available when a fixture is...

Page 39: ...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 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 wit...

Page 40: ...arged for the set volume of water If hot water is used for other fixtures while filling the bath tub the alarm will sound before the tub is full If mixing valves are used or if cold water is mixed with hot water at the fixture the tub will fill more than the setting of the flow meter alarm The setting cannot be changed when a button is pressed The remote controller is locked While the remote contr...

Page 41: ... fully open Is the water supply cut off Is the hot water fixture faucet 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 The hot water is turbid This is ha...

Page 42: ...f the display continues contact nearest Noritz agent Exhaust vent may be clogged Abnormal combustion low gas supply pressur Condensate drain line may be clogged When a failure occurs information relating to the error blinks on the display The error alarm may also continuously sound Checking for Error Conditions The display may indicate the type of failure that has occured depending on the system c...

Page 43: ...ate of purchase see the warranty Details of problem flashing error codes etc in much detail as possible Your name address and telephone number Desired date of visit 1 2 Model code Product name of water heater is displayed Ex Error code Screen display Example Operation Screen Display Description If an error code is displayed the model name and code can be checked If more than one water heater is in...

Page 44: ...einstallation 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 1Press the button inside the cover Screen display Example Screen display Example Identifying units that require service system dependent Operation Screen Display Descr...

Page 45: ... 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 install...

Page 46: ... hose With clamp Wall Mounting Bracket Specifications Performance Item Model Name Type Ignition Operating Pressure Minimum Activation Flow Rate Minimum Operating Flow Rate Dimensions Height x Width x Depth Weight Water Holding Capacity Accessories Specifications may be changed without prior notice The capacity may differ slightly depending on the water pressure water supply piping conditions and w...

Page 47: ...lock display No 1 Brightness of the display screen when the remote controller is turned on Normal Operation sound of remote controller Yes Notification when a failure is generated Yes Items Default setting Clock display unset Hot water temperature 110 F 40 C Hot water volume alarm off It might be changed at the installation ...

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