Noritz NRCP111-DV Owner's Manual
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Noritz NRCP111-DV Owner's Manual

Condensing tankless gas water heater
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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
NRCP111-DV / NRCP98-DV
• Natural Gas ( NG ) / Liquid Propane Gas ( LP )
c

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Summary of Contents for Noritz NRCP111-DV

  • Page 1 CONDENSING TANKLESS GAS WATER HEATER Owner's Guide Models NRCP111-DV / NRCP98-DV • 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. – WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance.
  • Page 2 Owner’s Guide – Table of Contents Chapter 1 Safety Precautions Safety Regulations. Before Operation When in Operation Important Safety Information Chapter 2 Initial Operation Unit Operation Control Panel Interface Control Panel LCD Interface How to use Control Panel 1. Clock Adjustment 2.

  • Page 3: Safety Precautions

    Installation and Owner’s Guide and on the Water Heater before installation, operation, or service. BEFORE OPERATING Noritz cannot anticipate every circumstance that might If you do not follow these instructions exactly, a fire involve a potential hazard and our warnings are, therefore, or explosion could result causing property damage, not all-inclusive.
  • Page 4 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 5 Operating Information in this guide before valves are fully opened. Make sure that fresh air intake flue operating the Noritz Water Heater. and exhaust gas flue are opened and functional. Be fully aware of where the gas shut-off valve is located and DO NOT attempt to install, repair, or service the Water Heater how to operate it.

  • Page 6: Before Operation

    Chapter 1. – Safety Regulations Before Operation / When in Operation Ventilation during gas leakage Before Operation If exhaust gas enters room, it could cause poisoning by carbon monoxide. Check if the exhaust pipe is connected CAUTION properly. Open windows for ventilation at appropriate intervals.

  • Page 7: Important Safety Information

    Chapter 1. – 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. Damage can occur extended period of time. Do not drink the first use of from frozen water within the device and pipes even hot water from the unit in the morning.

  • Page 8: Chapter 2. - Unit Operation

    Chapter 2. – 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 9: Control Panel Interface

    Chapter 2. – Unit Operation Control Panel Interface Control Panel Interface Indicator (Green) Function Button Hot Water Temperature Button Display Screen Power ON / OFF Button Dial Button / Enter Button Recirculation Timer For turning the water heater ON / OFF. Functionalities Buttons Press (under 5 seconds)

  • Page 10: Control Panel Lcd Interface

    Chapter 2. – 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 11: Clock Adjustment

    Chapter 2. – 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 12: Setting Hot Water Temperature

    Chapter 2. – Unit Operation How to use Control Panel- User Mode 2. Setting Hot Water Temperature General temperature range High temperature range °F The operation of the high temperature hot water can be set Default separately. °C 40.5 43.5 51.5 54.5 The temperature settings below are examples.
  • Page 13 Chapter 2. – 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 ] - [ K: RH ] - [ L: FC ] - [ M: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 14 Chapter 2. – 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 13 ‘User Mode’ setting method and set to ‘User Mode’. - Function can be checked by turning the dial button.
  • Page 15 Chapter 2. – Unit Operation How to use Control Panel- User Mode 5. How to check the ‘Running History’. [K:RH] - Refer to page 13 ‘User Mode’ setting method and set to ‘User Mode’. - Function can be checked by turning the ‘Dial Button’. Screen Display Operation Description...
  • Page 16 Chapter 2. – Unit Operation How to use Control Panel - User Mode 6. Setting the ‘Unit’. [L:FC] - Refer to page 13 ‘User Mode’ setting method and set to ‘User Mode’. - Function can be checked by turning the ‘Dial Button’. 1.
  • Page 17 Chapter 2. – 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. 1.
  • Page 18 Chapter 2. – 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] is to activate the ‘Recirculation Timer’, [Set] is to customize the times appropriate to the end user and [cLr] is to reset to factory default the setting.

  • Page 19: Auto Function]

    Chapter 2. – Unit Operation How to use Control Panel - User Mode 7. Setting the ‘Recirculation Timer’. (Selecting Timer Type ‘Auto’ / ‘Prog’) 7-1 Set the ‘Recirculation Timer Type’ to ‘Auto’. [Auto Function] If flame is detected by customer usage, that time is stored. The following day, the water pattern from the previous day is used to control the pre-heat and provide prompt hot water. 2. ‘Recirculation Timer Icon’ and [Act] are flashing on 1.
  • Page 20 Chapter 2. – 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 time in ‘Recirculation Mode’. 1. Press the ‘Recirculation Timer Button’ while power of the 2.
  • Page 21 Chapter 2. – Unit Operation How to use Control Panel - User Mode ex) Setting time : am 1:00 ~ 2:30 , AM 11:00~PM 2:30 (default time : AM 5:00~8:00, PM 5:00~11:00) Dial Button Dial Button Press Turn clockwise 5. Press the ‘Dial Button’ after locating the 6.

  • Page 22: Vacation Mode

    Chapter 2. – 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. 2. [Act] is flashing on display screen. Turn the ‘Dial Button’ clockwise to select the [cLr] .
  • Page 23 Chapter 2. – Unit Operation How to use Control Panel - User Mode 8. Setting the ‘Recirculation System’. Setting Requirement Performance Mode Description Dedicated Wait Time Energy Hot Water 1:RC 2:RM Accessory Return Line Water Savings Savings Temperature No Recirculation Same as regular tankless water heaters.
  • Page 24 Chapter 2. – Unit Operation How to use Control Panel - User Mode Recirculation Mode When using recirculation mode with the built-in pump, check the following maximum recirculation pipe lengths including fittings (3/4" pipe is recommended): -1/2" Pipe- 200' (60m) of equivalent length -3/4"...
  • Page 25 Chapter 2. – Unit Operation How to use Control Panel - Installer mode 8. Setting the ‘Recirculation System’. 8-1. To set the recirculation type (External, On-Demand, Crossover Mode) 1. Press the 'Power Button' OFF. ('Display Screen' will be blank) 2. ‘1:RC’ oFF will appear on the ‘Display Screen’. (‘1:RC’ will be Push and hold the 'Function Button' to enter lnstaller Mode.

  • Page 26: Preventing Damage From Freezing

    Chapter 2. – Unit Operation Preventing Damage from 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 27 Chapter 2. – 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 28 Chapter 2. – Unit Operation Preventing Damage form Freezing 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 8 ‘Initial Operation’, steps 1 through 4. 4.

  • Page 29: Chapter 3. - Maintenance

    Chapter 3. – 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 30: Cleaning The Water Heater

    Chapter 3. – 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 31 Chapter 3. – 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 the ‘Power Button’ to turn off the electrical power to the water heater. And then turn off the gas valve. 3.
  • Page 32 Chapter 3. – 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 33: Flushing The Water Heater

    Chapter 3. – Maintenance Maintaining the Water Heater 3. Flushing the Water Heater Maintenance procedures [Annually] 5. Press the ‘Dial Button’ and confirm the pump activation by sounds and also icon on the Control Panel. - Check piping (gas and water) Visually inspect for leaks around internal water piping.

  • Page 34: Chapter 4. - Troubleshooting

    Ignition has failed 10 (Ten) 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.

  • Page 35: 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 36: 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 37 Memo...
  • Page 38 Owner's Guide NORITZ AMERICA CO. 11160 Grace Avenue Fountain Valley, CA 92708 Phone : 866 - 766 - 7489...

This manual is also suitable for:

Nrcp98-dv

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