Noritz GQ-C3257WZ-FF US Owner's Manual
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Noritz GQ-C3257WZ-FF US Owner's Manual

Noritz GQ-C3257WZ-FF US Owner's Manual

Condensing tankless gas water heater
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CONDENSING TANKLESS GAS WATER HEATER
Owner's Guide
FOR USE IN COMMERCIAL OR MANUFACTURED HOME APPLICATIONS.
WARNING
- 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.
CERTIFIED
R
Low NOx Approved
by SCAQMD
14 ng/J or 20 ppm
(Natural Gas Only)
SBB80HV-3
Rev. 01/17
Models : NCC199DV (GQ-C3257WZ-FF US)
NCC199OD (GQ-C3257WZ US)
If the information in this manual is not followed exactly, a fire or explosion
may result causing property damage, personal injury, or death.
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 necessary.
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
*SBB80HV*

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Summary of Contents for Noritz GQ-C3257WZ-FF US

  • Page 1 Home Construction and Safety Standard, Title 24 CFR, Part 3280 or the (Natural Gas Only) 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 SBB80HV-3 Rev.

  • Page 2: Important Safety Information

    Important Safety Information-1 To prevent damage to property and injury to the user, the icons shown below will be used to warn of varying levels of danger. Every indication is critical to the safe operation of the water heater and must be understood and observed. Potential dangers from accidents during installation and use are divided into the following four categories.
  • Page 3 Be sure 1. Turn off the hot water supply. to do. will settle on the floor. 2. Turn off the power to the water WHAT TO DO IF YOU SMELL GAS. heater. • Do not try to light any 3. Turn off gas and water supply appliance. valve. • Do not touch any electrical 4. Call the nearest Noritz agent. switch; do not use any phone in your building. Explosion Hazard ; • Immediately call your gas If the temperature and pressure relief supplier from a neighbor’s valve is dripping or leaking, have a phone. Follow the gas supplier’s Prohibited instructions. qualified service technician replace it. • If you cannot reach your gas Do not plug or remove the valve. supplier, call the fire department. Failure to follow these instructions can re- C. Use only your hand to turn...
  • Page 4 Be sure the gas/power Outdoor or fire as a result. supplied matches the gas on the rating plate. Be sure Leave the proper clearance between to do. the water heater and nearby objects Ex. For Natural Gas (NCC199DV (GQ-C3257WZ-FF US)) (trees, timber, boxes with flammable Be sure materials etc.). to do. [NCC199DV] Sug.3" (75mm) Upper: from vent pipe* Min. 12" (300mm) Left side: Right side: Min.
  • Page 5 Do not allow small children to bath unsupervised. death, serious illness or other reproductive harm. Prohibited This product may contain such substances, be their origin from fuel combustion (gas, oil) Do not touch the power or components of the product itself. cord with wet hands. Don’t touch Electric with a wet The gas conversion kit shall be installed by a hand. Shock. qualified service agency in accordance with the manufacturer’s instructions and all Consult the nearest Noritz agent if applicable codes and requirements of the the water heater location needs to authority having jurisdiction. The be changed. Be sure information in the instructions must be to do. followed to minimize the risk of fire or explosion or to prevent property damage, Contact a qualified service personal injury, or death. The qualified technician for any necessary service agency is responsible for the proper repairs, service or maintenance. Don’t installation of this kit. The installation is not disassemble the equipment.
  • Page 6 Important Safety Information CAUTION Do not drink water that has been inside the This unit is only approved for installation unit for an extended period of time. Do not up to 4500 ft. (1350m) above sea level. drink the first use of hot water from the For installations at higher elevations, contact Noritz unit in the morning. America for Instructions. Clean the filter on the water inlet as Do not disassemble the remote controller. frequently as required by the quality of your local water. Do not use benzene, oil or fat detergents to clean the remote controller. Keep the area around the unit clean. This may cause deformation. If boxes, weeds, cobwebs, cockroaches etc. are in Do not get the remote controller wet. the vicinity of the unit, damage or fire can result.

  • Page 7: Table Of Contents

    Contents Important Safety Information ............... 2 Contents......................7 Overview of Condensing Tankless Gas Water Heater ......8 RC-9018M Operation Overview ..............9 General Parts Main Unit ....................11 Remote Controller ..................12 System Check....................14 Initial Operation .................... 16 For All Systems Clock Adjustment ..................17 Using the Water Heater ................18 Setting Hot Water Temperature..............19 Automatic Water Heater “ON” or “OFF” Operation ....... 20 Locking the Remote Controller..............22 Customizable Settings <Misc settings>..........23 For System [Rcrc] Enabling Automatic Recirculation Operation .

  • Page 8: Overview Of Condensing Tankless Gas Water Heater

    Overview of Condensing Tankless Gas Water Heater This water heater is a high efficiency, fully condensing appliance. Unlike a traditional tankless water heater, a condensing type captures heat from the exhaust gas and uses it to preheat the incoming cold water as it passes through the secondary heat exchanger as illustrated below. Condensing Conventional Exhaust...

  • Page 9: Rc-9018M Operation Overview

    RC-9018M Operation Overview - 1 Basic operation It is possible to It is possible to lock [ For recirculation systems ( automatically turn remote controller It is possible to circulate hot water only the water heater operation. during preferred times of day. “ON” or “OFF”. Automatically turned "ON" Automatically turned "OFF" p.20 p.22 p.28 [When using only one water heater:] It is possible to set the remote controller to alert the user when the Pi Pi !! bathtub has reached a preset fill volume to prevent overfilling. p.30 Power Saving Mode The initial setting is set to "Powersave dsply : No-1" If you set "Powersave dsply" to "Yes" ( p.23), unnecessary power consumption by the remote The display turns off...
  • Page 10 RC-9018M Operation Overview - 2 User Preferences The remote controller can be customized based on the preference of the user in the following ways: The set temperature can be The clock display can be The remote controller restricted to a maximum level shown even though the power display can be turned to prevent high temperature ON/OFF button is set to "OFF". off to save power. settings from being selected. Adjusting the Maximum p.23 Power Saving Modes p.23 Output Temperature The brightness of the The remote controller can be The remote controller can be remote controller can be muted so that it does not emit a muted so that it does not emit adjusted for tone when a button is pressed. a tone when an error occurs. better visibility. Remote Controller Display Muting the p.24 p.24 p.24 Error Tone Settings Brightness Settings Remote Controller Additional Settings Draining the water heater (freeze prevention). p.25 "Draining the Water Heater" Restoring default remote controller settings.

  • Page 11: General Parts

    General Parts -1 Main Unit [NCC199DV (GQ-C3257WZ-FF US)] Indoor Wall Mounted, Power Vent/Sealed Model Intake Pipe Flue Collar Front Cover Water Drain Valve (with Water Filter) (Inside Water Inlet) p.36) Pressure Relief Valve Water Supply Valve Gas Supply Valve Drain Pipe Discharges the condensate. [NCC199OD (GQ-C3257WZ US)] Outdoor Wall Mounted, Power Vented Model Exhaust Vent * The above illustration shows an example of installation. The exact installation configuration may be slightly different.

  • Page 12: Remote Controller

    General Parts -2 Remote Controller (RC-9018M) The remote controller will emit a tone when a button is pressed. Alarm Off Button Prog Button / Indicator (Red) / Indicator (Red) Activates the automatic water heater power Stops the tone that is emitted “ON” or “OFF” setting as determined by the when an error occurs. ( p.42) user selected schedule.
  • Page 13 Screen Display * The screen display shown below is for illustration purposes only. The actual display will vary depending on how the water heater is being used. * After a button is pressed, the display will gradually become darker to prevent unnecessary power consumption by the remote controller.

  • Page 14: System Check

    System Check If you press the button, you can check the status of the system (Display Screen Example [System [Rcrc] ]) Cover shown in the open position. System Displayed on System Description the Remote Controller Water heater only operation. * Water heater and recirculation operation. * During recirculation operation, 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.
  • Page 15 Depending on the configuration of your system, not all functions may be used. General System Diagram Applicable Remote * The number of water heaters, fixtures, and Controller Functions pumps will vary depending on the configuration of the hot water system. Water heater When you start using the system, cold Functions other than water in the piping must be discharged before receiving hot water.

  • Page 16: Initial Operation

    Open the water supply valve. OPEN CLOSED Open a hot water fixture/faucet to confirm that water is available, and then close the fixture/faucet again. Hot water fixture/faucet Open the gas supply valve. Turn on the power. Do not touch with wet hands. (Ex. NCC199DV (GQ-C3257WZ-FF US))

  • Page 17: For All Systems

    Clock Adjustment For All Systems Cover shown in the open position. Operation Screen Display Description * This adjustment can be made Press the button regardless of whether the inside the cover. button is ON/OFF. Press the button. * The time changes in 1-minute increments with each press 1) Use the buttons to o f t h e b u t t o n , a n d t h e n i n 10-minute increments if the (Ex: AM10:15) reset the clock.

  • Page 18: Using The Water Heater

    Using the Water Heater For All Systems is displayed, hot water will be discharged at the temperature of the storage tank. Operation Screen Display Description For systems with recirculation operation, * The indicator is lit. button is "ON". is displayed here. * The previously set hot water supply temperature is shown. [For systems with recirculation operation] * If you set the button to "ON",...

  • Page 19: Setting Hot Water Temperature

    The error code may be more frequently displayed when the unit is set to a high temperature. (125°F or higher) Noritz recommends that water temperature is set as low as possible to prevent scale build-up in the heat exchanger. • 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.

  • Page 20: Automatic Water Heater "On" Or "Off" Operation

    Automatic Water Heater “ON” or “OFF” For All Systems * If you set the time to turn "ON" or "OFF" the button, the button is automatically turned "ON" or "OFF" at the set time every day by just turning the button "ON".
  • Page 21 Operation Hint for operation Follwing 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" Ex.

  • Page 22: Locking The Remote Controller

    Locking the Remote Controller For All Systems By locking the remote controller, the settings cannot be accidentally changed if a button is pressed by mistake. Cover shown in the open position. Operation Screen Display Description * The operation can be locked Press and hold button regardless if the...

  • Page 23: Customizable Settings

    Customizable Settings <Misc settings> -1 For All Systems Adjusting the Maximum Output Display Screen Power Saving Mode Temperature. [powersave dsply] The maximum output temperature To conserve power consumption by can be limited to prevent discharging the display, it can be turned off hot water at too high of a temperature.
  • Page 24 Customizable Settings <Misc settings> -2 For All Systems Adjusting the brightness of the <System dependent option> Muting the remote controller. display screen when the remote Error Tone Settings. The remote controller can be muted controller is turned on. so that it does not emit a tone when The remote controller can be muted a button is pressed.
  • Page 25 Draining the Water Heater. DO NOT SELECT AND CHANGE THE SETTING. Refer to page 33 for details.) button is "OFF".   Press the button inside the cover, Select using the buttons. Press the button. The "Misc settings" screen appears. Select using the buttons, and then...

  • Page 26: Enabling Automatic Recirculation Operation

    Enabling Automatic Recirculation Operation * 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. Cover shown in the open position.

  • Page 27: Manually Starting Recirculation Operation

    Manually Starting Recirculation Operation Recirculation operation can be manually stopped or started using this procedure. Cover shown in the open position. Operation Screen Display Description * You can set this function if the 1) Press the button button is "ON". inside the cover, Select "Recirc menu"...

  • Page 28: Setting The Recirculation System Operation Timer

    Setting the Recirculation System * With the recirculation operation timer set, hot water will be automatically circulated in the hot water pipes. Even with this function activated, it may take several minutes for hot water to be completely circulated through the plumbing system. Set the timer to activate the recirculation system prior to the first use of hot water to ensure hot water is instantly available.
  • Page 29 Operation Timer Operation Screen Display Description * Every time when you press the 1) Select "AM8:00" using button, the time changes by one hour. [To keep the current “End” time] buttons. Here Press the button without 2) Press the button to changing the "End" time, and proceed to step 5. complete the “End” time setting. <Adding Additional Time Periods> * You can set multiple operation 1) Select "Add" using time periods.

  • Page 30: Single Water Heater Only

    Flow Meter Alarm Single Water Heater Only If the flow meter alarm is being 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.
  • Page 31 Operation Screen Display Description Turn on hot water. Lit during combustion The highest If the hot water temperature has been temperature 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. When the bathtub fills with * Why doesn't the flow meter alarm sound even if the bathtub the preset volume of water,...

  • Page 32: Preventing Damage From Freezing

    Freezing cannot be prevented when the power plug is unplugged. Do not remove the power plug from the wall outlet. Freezing will be prevented regardless of whether the operation switch is ON or OFF. * In normal operation, freezing is prevented within the device automatically unless the outside temperature without wind is below -30°F (-35°C) for NCC199DV (GQ-C3257WZ-FF US) or -4°F (-20°C) for NCC199OD (GQ-C3257WZ US). - For model NCC199DV (GQ-C3257WZ-FF US), when supplying combustion air from the indoors, the room temperature must be greater than 32°F (0°C) to prevent freezing and the room inside must not have negative pressure. * The freeze prevention heaters will not prevent the plumbing external to the unit from freezing. Protect this plumbing with insulation, heat tape or electric heaters, solenoids, or pipe covers. If there remains a freezing risk, contact the nearest Noritz agent. Take the measures below for extremely cold temperatures*. Outside temperature including wind chill factor less than -30°F (-35°C) for NCC199DV (GQ-C3257WZ- FF US) or -4°F (-20°C) for NCC199OD (GQ-C3257WZ US). - For model NCC199DV (GQ-C3257WZ-FF US), when supplying combustion air from the indoors, the room temperature must be greater than 32°F (0°C) to prevent freezing and the room inside must not have negative pressure. This method can protect not only the heater, but also the water supply, water piping and mixing valves. 1. Turn off the power. Hot water 2. Close the gas supply valve. fixture/faucet 3. Open a hot water fixture/faucet, and keep a small stream of hot water...
  • Page 33 Preventing Damage from Freezing-2 If the water heater will not be used for a long period of time, drain the water. Drain the water as follows: CAUTION 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 To prevent damage from freezing, the water heater must be plugged into power at all times. If power is unplugged, drain the water completely from the water heater. Then use an air compressor to remove all water from inside the unit's water piping. It is recommended that Isolation Valves are installed on the water heater, otherwise the water connections will need to be removed to drain the unit completely. Freeze damage due to not draining properly will not be covered under warranty. Drain water into a bucket to prevent water damage. Drainage Using the Remote Controller Manual Draining Close the gas valve. (1) button is “OFF”.
  • Page 34 Preventing Damage from Freezing-3 Turning the Unit Back On 1. Check that all drain plugs are inserted. 2. Check that all hot water fixtures/faucets are closed. 3. Follow the procedure on p.16 “Initial operation”, steps 1 through 4. 4. Make sure that the area around the appliance is well ventilated; open a window or a door if necessary. Then, operate the unit and verify that condensate is coming out of the drain pipe. (During normal use of the water heater, condensate will 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. DANGER 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 prevent dangerous exhaust gases from entering the building. Failure to fill the condensate trap could result in severe personal injury or death. Be sure to do. (By performing step 4 as described above, the condensate trap will automatically fill itself with water.)

  • Page 35: Regular Maintenance

    Regular Maintenance-1 Periodic Inspection CAUTION To prevent burns or scalding, turn off the power button and wait until the equipment cools before performing maintenance. Be sure to do. air supply vent [When supplying combustion air For dust and soot in Check from the indoors] the exhaust vent or For smear or blockage exhaust vent terminal. Check with dust, oil, etc. at the air supply vent. If blocked, remove the For abnormal sounds build-up with a vacuum Check during operation. cleaner or damp towel. * Do not permanently remove the Inlet Screen. For abnormalities in Check external appearance, For laundry, newspaper, discoloration or flaws. Check timber, oil, spray cans and other combustible materials. near the For proper operation of Check heater or the exhaust pressure relief valve. vent terminal. For water leaks from the Check For blockage at the...
  • Page 36 Regular Maintenance-2 Periodic Maintenance Water Drain Valve (with Water Filter) If the water drain valve (with water filter) is covered with debris, the hot water may not run smoothly, or the unit may put out cold water. Check and clean the filter as explained below. * To avoid burns, wait until the equipment cools down before draining the water. The appliance will remain hot after it is turned off. 1. Close the water supply valve. Inlet 2. Open all hot water fixtures/faucets. Packing 3. With a bucket ready, remove the inlet and outlet drain plugs (about 0.45 gallon (1.7 L) will drain out) 4. Take the water drain valve (with water filter) out of...
  • Page 37 : 200 mg/L (12 gpg) or less Aluminum : 0.05 to 0.2 mg/L or less Chloride : 250 mg/L or less Copper : 1 mg/L or less Iron : 0.3 mg/L or less Manganese : 0.05 mg/L or less : 6.5 - 8.5 Total Dissolved Solids : 500 mg/L or less Zinc : 5 mg/L or less Sulfate ion : 250 mg/L or less Residual chlorine : 4 mg/L or less ** Maximum limit suggested by Noritz. Source: EPA National Secondary Drinking Water Regulations (40 CFR Part 143.3) Isolation Valves * Isolation valves may be purchased as an accessory from an authorized Noritz wholesaler. They allow for full diagnostic testing and easy flushing of the system. * The kit includes two full port isolation valves and a pressure relief valve for the hot side. Contact Noritz for more information. Hot Water Service Valve Pressure Relief Valve Cold Water Service Valve Water Intlet Drain (Ex. NCC199DV (GQ-C3257WZ-FF US)) Water Outlet...

  • Page 38: Troubleshooting

    Troubleshooting-1 Initial Operation • Check for reversed plumbing or crossed pipes. Unit does not attempt to ignite when water is running. • Check the water drain valve filter. ( p.36) Unit attempts to ignite but fails • Reset unit and try again. There may be air in the gas line. • Have a professional check the gas supply pressure. Temperature • Are the gas and water supply valves fully open? Hot water is not available when a fixture is opened. • 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?) • Is the water drain valve filter clogged? ( p.36) • Is the power button turned on? No water is available when • Is the water supply cut off? a fixture is opened. • Is the heater frozen? The hot water is not the correct • Is the hot water fixture/faucet sufficiently open? temperature. Water takes time to become hot when • Have you allowed enough time for the cold water in the pipes to drain out?
  • Page 39 (Continued) • The unit will not heat the water if the flow rate is less than The water is cold when only a 0.5 gallons (2L) per minute. single fixture is open. Open the fixture more or open other fixtures so that a greater flow passes through the unit, and the unit should begin heating again. • Set water temperature at 115°F to 120°F or 48°C (118°F) to Fluctuations in hot water 50°C (122°F). This will allow you to use a higher flow of hot temperatures. water thus meeting the minimum flow requirement of 0.5 GPM (2L/min.). • Clean the water filter of any debris ( p.36) Setting temperature cannot rise. • Is the maximum temperature setting appropriate? ( p.23) Amount of Hot Water The amount of hot water at a • When hot water is demanded at other fixtures, the amount available may be reduced. The maximum flow available certain fixture is not constant. from this unit is 8.4 GPM (32L/min.) at a 45°F (25°C) temperature rise. • Pressure fluctuations and other plumbing conditions can cause the temperature and pressure at a fixture to be unstable, but it should stabilize after a short time. • There are some types of hot water taps that discharges large volumes of hot water at first but stabilize after time.
  • Page 40 Troubleshooting-2 Remote Controller The power ON/OFF indicator • Has there been a power failure? does not light up. • Is the power connected properly? The water temperature changes • The temperature setting and the flow meter alarm setting after a power failure or when the may both need to be reset after a power outage. power is disconnected. The clock display shows • If the time is not displayed on the clock, either a power failure has occured or power was disconnected resulting "- : - -". in the display showing "- : - -". ( p.17) The flow meter alarm does not sound • The flow meter alarm is set to sound when hot water is continuously discharged for the set volume of water. or it sounds before the bathtub has If hot water is used for other fixtures while filling the bath been filled to the set amount. 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 • The remote controller is locked. While the remote controller is locked these buttons a button is pressed. cannot be used. ( p.22) [For recirculation systems] • During recirculation operation, the water heater will turn...
  • Page 41 Other The Heater stops burning during • Are the gas and water supply valves fully open? operation. • 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?) White smoke comes out of the • This is normal. The white smoke is actually steam. exhaust vent on a cold day. • This is harmless. Small bubbles appear as the air in the The hot water is turbid. water is heated and depressurized rapidly to atmospheric pressure. The water appears blue • Coloration to a blue color may be noticed from small traces of copper ion contained in the water and fat The bath tub/wash-basin has turned (furring). However, there are not problems concerning blue health. Coloration of the bath tub/wash-basin can be prevented by cleaning frequently. Frequent water discharge from the • Condensation forms inside the unit during operation and is discharged from the drain pipe. drain pipe. A small amount of water is discharged • This is normal. When the water heater is under high pressure, a small amount of water may be discharged from the pressure relief valve.
  • Page 42 =1-4, F # =0-9 by disconnecting electrical power until the Heat Exchanger can be flushed. then the unit will shut off Contact Noritz America for more information about flushing the Heat before long.) Exchanger. (866-766-7489) The unit is locked because of repeated Scale Build-up error codes. The unit detects the Scale Build-up in the Heat Must flush the Heat Exchanger to remove the Scale Build-up. =0-9 Exchanger many times Before flushing the Heat Exchanger, contact Noritz America for more (The unit is locked.) information.(866-766-7489) 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. To Stop the Error Alarm Press the button (the indicator will turn off).

  • Page 43: Follow-Up Service

    Follow-up Service-1 Requesting Service First follow the instructions in the troubleshooting section ( p.38 to p.42). If the error is not corrected, contact Noritz America Technical Support at 866-766-7489. We will need to know: The Model ....(check the rating plate) *See p.4 for the location of the label Date 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 * A request for service may be rejected if the water heater is installed in a location where working on the unit may be dangerous. Contact a plumber. If an error code is displayed, the model name and code can be checked * If more than one water heater is installed, this procedure cannot be used.
  • Page 44 ● Identifying units that require service (system dependent). * If you press the button , the Press the button twice screen of step 1 is displayed. inside the cover. If you press the button , the <Screen display (Example)> screen returns to the previous screen. Warranty A warranty registration card is included separately. Be sure that the plumber, date of purchase and other necessary items are filled in. Read the content carefully, and keep the warranty card in a safe place. For repairs after the warranty period, there will be a charge on any service, and service will only be performed if the unit is deemed repairable. Period of Time for Stocking Repair Parts Noritz will stock repair and maintenance parts for this unit for the time period from the date of the original installation as follows: twelve (12) years for the heat exchanger and ten (10) years for remaining parts. Reinstallation 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.
  • Page 45 Gas Conversion 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. The qualified installer will also be responsible for purchasing the gas conversion kit directly from the manufacturer. For more information, contact Noritz America Technical Support at 866-766-7489. WARNING The gas conversion 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 installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as specified in the manufacturer’s instructions supplied with the kit. * A qualified service agency is any individual, firm, corporation, or company which either in person or through a representative is engaged in and is responsible for the connection, utilization, repair or servicing of gas utilization equipment or accessories; who is experienced in such work, familiar with all precautions required, and has compiled with all of the requirements of the authority having jurisdiction. Before the gas conversion is performed, verify the proper gas conversion kit with your water heater model on the table provided below.

  • Page 46: Specifications

    Specifications • Specifications may be changed without prior notice. • The capacity may differ slightly, depending on the water pressure, water supply, piping conditions, and water temperature. Specifications Item Specification Model Name NCC199DV (GQ-C3257WZ-FF US) NCC199OD (GQ-C3257WZ US) Type Installation Indoor Wall Mounted Outdoor Wall Mounted Air Supply/Exhaust Power Vented Ignition Direct Ignition Operating Pressure 15-150 psi Minimum Flow Rate 0.5 GPM (2 L/min.) Dimensions (Height) x (Width) x (Depth) 24.4" (619mm) x 18.4" (468mm) x 9.4" (240mm) Weight 68 lbs. 66 lbs. Water Holding Capacity 0.5 Gallon (2 L) Connection Sizes Water Inlet NPT 3/4" Hot Water Outlet NPT 3/4” Gas Inlet NPT 3/4” Condensate Drain 1/2” Threaded Power Supply Supply 120 VAC (60Hz) Consumption NG : 81W LP : 83W NG : 78W LP : 80W Freeze Prevention 223W...

  • Page 47: Default Settings

    Default Settings Items Default setting Clock display (unset) Hot water temperature 110˚F / 40˚C Hot water volume alarm off Customizable Settings ( P23 - 25) Default setting *It might be changed at the installation. Maximum Output Temperature 120˚F / 50˚C* "Powersave dsply"...

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