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CONDENSING TANKLESS GAS WATER HEATER
Thank you for purchasing this Noritz Tankless Gas Water Heater.
Before using, please:
Read this guide completely for operation instructions.
Completely fill out the warranty registration card (included separately) and mail the detachable portion to Noritz
America Corporation. Keep this guide (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 CSA B149.1, Natural Gas and Propane Installation Code (NSCNGPIC).
Noritz America reserves the right to discontinue, or change at any time, the designs and/or specifications of its
products without notice.
WARNING
If the information in these instructions is not followed exactly, a fire or explosion may result, causing
property damage, personal injury, or death.
– Do not store or use gasoline or other inflammable 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.
Rev.05/19
Owner's Guide
Models
NRCP1112-DV / NRCP982-DV (Eco TOUGH)
• Natural Gas ( NG ) / Liquid Propane Gas ( LP )
c
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Summary of Contents for Noritz NRCP982-DV-NG
- Page 1 CONDENSING TANKLESS GAS WATER HEATER Owner's Guide Models NRCP1112-DV / NRCP982-DV (Eco TOUGH) • Natural Gas ( NG ) / Liquid Propane Gas ( LP ) Thank you for purchasing this Noritz Tankless Gas Water Heater. Before using, please: Read this guide completely for operation instructions. Completely fill out the warranty registration card (included separately) and mail the detachable portion to Noritz America Corporation. Keep this guide (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 CSA B149.1, Natural Gas and Propane Installation Code (NSCNGPIC). Noritz America reserves the right to discontinue, or change at any time, the designs and/or specifications of its products without notice. WARNING If the information in these instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury, or death. – Do not store or use gasoline or other inflammable vapors and liquids in the vicinity of this or any other appliance.
- Page 2 Owner’s Guide – Table of Contents Chapter 1 Operating Flow chart Product Overview Chapter 2 Safety Precautions Safety Regulations. Before Operation When in Operation Important Safety Information Chapter 3 Unit Operation Initial Operation Control Panel Interface Control Panel LCD Interface How to use Control Panel 1.
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Page 3: Recirculation Mode
Chapter 1. – Product Overview Operating Flow Chart Operating Flow Chart Standard mode This water heater is a highly efficient, 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. -
Page 4: Safety Precautions
Installation and Owner’s Guide and on the Water BEFORE OPERATING Heater before installation, operation, or service. Noritz cannot anticipate every circumstance that might in- If you do not follow these instructions exactly, a fire volve a potential hazard and our warnings are, therefore, not or explosion could result causing property damage, all-inclusive. - Page 5 DANGER Use this Water Heater at your own risk. The outlet temperature of the Noritz Water Heater is fac- tory preset to 120°F (49°C). The temperature can only be changed by using the control panel.
- Page 6 Proper care is your responsibility. Carefully read Do not power up the unit unless the gas and water and understand the Operating Information in this supply valves are fully opened. Make sure that fresh guide before operating the Noritz Water Heater. air intake flue and exhaust gas flue are opened and functional. B e fully aware of where the gas shut-off valve is located and how to operate it.
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Page 7: Before Operation
Chapter 2. – Safety Regulations Before Operation Before Operation CAUTION 4. Check the water supply valve. 1. Check the gas being used. Please leave the appliance water supply valve open at all times When the Water Heater is used or moved for the first time, user (it must be closed during installation) must check whether the type of gas being supplied matches the specific gas type for the appliance. - Page 8 Chapter 2. – Safety Regulations Before Operation Before Operation WARNING CAUTION Pull out the power plug from the receptacle if light- Do not store flammable material in the appliance ning strikes. room. Lightning can damage the water heater. Pull out power cord Do not store portable gas container, thinner, oil, or other plug if lightning strikes for your safety.
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Page 9: When In Operation
Chapter 2. – Safety Regulations When in Operation When in Operation After repair of gas pipeline or gas regulator replace- Gas leakage test ment, call service agent for inspection before start- Gas supply line must be inspected regularly. (If air bubbles appear in soap water test, the gas is leaking ing it up. - Page 10 Chapter 2. – Safety Regulations When in Operation When in Operation CAUTION Do not shut off the Water Heater. Do not disassemble the Water Heater. When you leave home for a long time, do not shut off the Water Service must be performed by a qualified installer, service Heater.
- Page 11 Chapter 2. – Safety Regulations Imortant Safety Indormation Important Safety Information CAUTION Do not drink water that has been inside the unit for an Preventing damage from freezing extended period of time. Do not drink the first use of Damage can occur from frozen water within the device hot water from the unit in the morning.
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Page 12: Initial Operation
Chapter 3. – Unit Operation Initial Operation Initial Operation • Before the first use of your water heater, make the following preparations. 1. Open the water pipe valve. 2. Open a hot water fixture/faucet to confirm that water is available, and then close the fixture/faucet again. -
Page 13: Control Panel Interface
Chapter 3. – Unit Operation Control Panel Interface Control Panel Interface Hot Water Temperature Setting Button Display Screen Function Button Indicator (Green) Recirculation Timer Button Power ON / OFF Button For turning the water heater on/off. Enter / Dial Button Functionality Buttons Press... -
Page 14: Control Panel Lcd Interface
Chapter 3. – Unit Operation Control Panel LCD Interface Control Panel LCD Interface LCD has a backlight that will illuminate: • When a user action is detected (a button is pressed) • Turns off when no action within approximately 20 seconds. Combustion Icon Communication Status External Recirculation Icon... -
Page 15: Clock Adjustment
Chapter 3. – Unit Operation How to use Control Panel 1. Clock Adjustment ►To use the ‘Recirculation Timer Mode’, the device’s internal clock should be adjusted to the current time. Clock settings can be set in the ‘User mode’. [ To enter ‘User Mode’ ] ‘[A:GA]’... -
Page 16: Setting Day
Chapter 3. – Unit Operation How to use Control Panel- User mode 3. Setting day : 25 Press the dial button to store Set the ‘day’ by turning the dial button. (Only the the setting. flashing number can be changed.) 4. -
Page 17: Setting Hot Water Temperature
Chapter 3. – Unit Operation How to use Control Panel- User mode 2. Setting Hot Water Temperature General temperature range High temperature range The operation of the high temperature hot water can be set °F separately. Default ℃ 40.5 43.5 51.5 54.5 The temperature settings below are examples. - Page 18 Chapter 3. – Unit Operation How to use Control Panel- User mode ‘User Mode’ confirmation function Function can be checked and set in ‘User mode’. ([ C: TL ] - [ I: EH ] - [ J: RH ] - [ K: FC ] - [ L:TA ]) Screen Display Operation Description C: TL Temperature Lock mode Lock mode is used(On) or unused(oFF) I: EH Error History View the Error History (E0:XX ~ E9:XX)
- Page 19 Chapter 3. – Unit Operation How to use Control Panel- User mode 3. Locking the Control Panel. [C:TL] By locking the control panel, the settings cannot be accidentally changed if a button is pressed by mistake. - Refer to page 18 ‘User Mode’ setting method and set to ‘User mode’. - Function can be checked by turning the dial button.
- Page 20 Chapter 3. – Unit Operation How to use Control Panel- User mode 5. How to check the ‘Running History’. [J:RH] - Refer to page 18 ‘User mode’ setting method and set to ‘User mode’. - Function can be checked by turning the dial button. Screen Display Operation Description...
- Page 21 Chapter 3. – Unit Operation How to use Control Panel - User mode 6. Setting the ‘Unit’. [K:FC] - Refer to page 18 ‘User mode’ setting method and set to ‘User mode’. - Function can be checked by turning the dial button. Unit Setting mode 1.
- Page 22 Chapter 3. – Unit Operation How to use Control Panel-Installer mode 7. Programming to use the Recirculation System Note : [1:RC] mode function must be ‘on’ in ‘Installer Mode’ in order to use the ‘Recirculation Timer’. ( ‘Recirculation Timer’ function is only enabled in ‘Recirculation Mode’.) To enter ‘Installer Mode’ press the ‘Power Button’ on the display the screen will be blank. Press the Function button for approximately 5 Seconds.
- Page 23 Chapter 3. – Unit Operation How to use Control Panel - User mode 7. Programming to use the Recirculation System ► Table for ‘Recirculation Timer’ setting. ‘Recirculation Timer’ function has three settings ([Act], [SEt], [cLr]). ‘[Act] mode’ is to set the ‘Recirculation Timer’, ‘[Set] mode’ is to manually set the day and times of a pattern appropriate to the consumer and ‘[cLr]’...
- Page 24 Chapter 3. – Unit Operation How to use Control Panel - User mode 7. Setting the ‘Recirculation Timer’. (Recirculation _Auto (Self Learning Mode)) 7-1 Set the ‘Recirculation Timer’ in ‘Auto’ mode. - Users can select between ‘Programming mode’ or ‘Auto’ mode Select the (Auto or Prog) in ‘Recirculation Timer’...
- Page 25 Chapter 3. – Unit Operation How to use Control Panel - User mode 7. Setting the ‘Recirculation Timer’. (Recirculation_Program Mode) 7-2 Set the ‘Recirculation Timer’ in ‘Prog’ mode. - Customer can directly set the day and time in ‘Recirculation Mode’. 1.
- Page 26 Chapter 3. – Unit Operation How to use Control Panel - User mode 4-1 Time is stated from 12:00. Turn the ‘Dial Button’ clockwise, time on the display screen is changed in increments of 30 minutes. Setting from 6 am to 8:30 am 4-3 Turn the ‘Dial Button’ to ending time. Then- 4-2 Press the ‘Dial Button’...
- Page 27 Chapter 3. – Unit Operation How to use Control Panel - User mode 7. Setting the ‘Recirculation Timer’. (Recirculation Initialization) 7-3 Recirculation function initialization setting - Reserved contents can be initialized. 1. Press the ‘Recirculation Timer Button’ when display screen is turned on. 2.
- Page 28 Chapter 3. – Unit Operation How to use Control Panel - User mode 8. Setting the ‘Recirculation System’. Inst. Mode Setting Default Return Mode Description Water Energy (Recirculation Recirculation Recirculation Line Speed Time) Setting Mode Same as other Standard (Default) Good Best Tankless water heater...
- Page 29 Chapter 3. – Unit Operation How to use Control Panel - User mode 2. External Recirculation mode The recirculation pipe must be installed in the field in order to apply the ‘External Recirculation Mode’. This mode allows the water heater recirculation pipes to be warmed up and serving as the freeze protection function.
- Page 30 Chapter 3. – Unit Operation How to use Control Panel - Installer mode 8. Setting the ‘Recirculation System’. 8-1. To set the recirculation type (External or Internal mode) 1. Turn off the power to the control panel. Press and hold the 4.
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Page 31: Preventing Damage From Freezing
Chapter 3. – Unit Operation Preventing Damage form Freezing 9. Preventing Damage from Freezing-1 CAUTION • Damage can occur from freezing 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. 1. -
Page 32: Condensate Drain
Chapter 3. – Unit Operation Preventing Damage form Freezing 3. If the water heater will not be used for a long period of time, drain the water. CAUTION • To avoid burns, wait until the equipment cools down before draining the water. •... - Page 33 10. Preventing Damage from Freezing-2 1. 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 page 12 “Initial operation”, steps 1 through 4. 4.
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Page 34: Chapter 4. - Maintenance
Chapter 4. – Maintenance Maintaining the Water Heater 1. General Maintenance Regular Maintenance Maintenance procedures [Monthly] - Check vent pipe. - After Water Heater installation is completed, the installation Visually inspect the flue gas vent piping for any signs of block- manual should be placed in near the water heater. -
Page 35: Cleaning The Water Heater
Chapter 4. – Maintenance Maintaining the Water Heater 2. Cleaning the Water Heater 1. Cleaning Air Intake Filter To properly maintain the water heater, you should check air intake filter every month. If not, you will encounter a problem with combustion specifications. - Page 36 Chapter 4. – Maintenance Maintaining the Water Heater - Cleaning Cold Water Inlet Filter / Recirculation Water Filter 1. Place a bucket under the appliance to collect the residual water inside the water heater. 2. Press ‘Power button’ to turn off the electrical power to the water heater. And then turn off the gas valve. 3.
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Page 37: Flushing The Water Heater
Chapter 4. – Maintenance Maintaining the Water Heater 3. Flushing the Water Heater 9. Disconnect all hoses. - Flushing the Water Heater Flushing the Heat Exchanger of water heater is a complicated 10. Remove the cold water inlet filter from the water heater and procedure. - Page 38 Chapter 4. – Maintenance Maintaining the Water Heater 3. Flushing the Water Heater 5. Press the dial button and confirm the Pump activation by sounds and also icon. 6. Wait for 30 seconds and disconnect the power to the water heater.
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Page 39: Chapter 5. - Troubleshooting
Er:11 Times If Error happens again: Contact the installer or Noritz America Technical Support for assistance. Press the Power button to clear the Error Code. If error code still appears on the display then check the following. • Make sure that the exhaust pipe is free of obstructions. -
Page 40: Water Quality
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. -
Page 41: Follow-Up Service
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 or end of production as follows: twelve (12) years for the heat exchanger and ten (10) years for... - Page 42 Memo...
- Page 43 Memo...
- Page 44 Owner's Guide NORITZ AMERICA CO. 11160 Grace Avenue Fountain Valley, CA 92708 Phone : 866 - 766 - 7489...
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