Noritz NR83-DVC Owner's Manual

Noritz NR83-DVC Owner's Manual

Tankless gas water heater
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TANKLESS GAS WATER HEATER
Owner's Guide
FOR USE IN RESIDENTIAL, 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
Low NOx
Approved by
SCAQMD
SBA8443
Rev. 04/10
Model NR83-DVC
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.
R
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.
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
*SBA8443*

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Summary of Contents for Noritz NR83-DVC

  • Page 1 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 Low NOx designs and/or specifications of its products without notice.
  • 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 3. Turn off gas and water supply WHAT TO DO IF YOU SMELL GAS. valve. • Do not try to light any 4. Call the nearest Noritz agent appliance. • Do not touch any electrical Explosion Hazard ; switch; do not use any phone in your building.
  • Page 4 Be sure result. Outdoor to do. For Natural Gas Leave the proper clearance between the water heater and nearby objects NR83-DVC (trees, timber, boxes with flammable 180,000 BTU 18,000 BTU Be sure to do. materials etc.). 10.5"...
  • Page 5 Shock. The gas conversion kit shall be installed by a qualified service agency in accordance with Consult the nearest Noritz agent if the manufacturer’s instructions and all the water heater location needs to applicable codes and requirements of the be changed.
  • Page 6 4500 ft. (1350m) above sea level. unit for an extended period of time. Do not drink the first use of hot water from the For installations at higher elevations, contact Noritz unit in the morning. America for Instructions.
  • Page 7: Table Of Contents

    Contents Important Safety Information ............... 2 Contents......................7 General Parts Main Unit ....................8 Operation Panel..................9 Initial Operation .................... 10 How to Use Muting the Operation Panel ..............11 Setting and Using the Water Heater ............12 Flow Meter Alarm ..................14 Adjusting the Maximum Output Temperature ........
  • Page 8: General Parts

    General Parts Main Unit Indoor Wall Mounted, Power Vent/Sealed Model Concentric Pipe Front Cover Operation Panel Water Drain Valve (with Water Filter) (Inside Water Inlet) p.20) Pressure Relief Valve Gas Supply Valve Water Supply Valve * The above illustration shows an example of installation. The exact installation configuration may be slightly different.
  • Page 9: Operation Panel

    Operation Panel (RC-7651M) What is actually displayed depends on how the water heater is set. Burner On Indicator Setting Buttons When burning, the For setting the hot indicator is lit. water temperature, p.13 and 15) the flow meter alarm, and other settings. Priority Indicator When this indicator is lit, the hot water temperature...
  • Page 10: Initial Operation

    Initial Operation Before the first use of your water heater, make the following preparations. 1 through 4 Follow steps Open the water supply valve. OPEN CLOSED Open a hot water fixture to confirm that water is available, and then close the fixture again.
  • Page 11: How To Use

    How to Use Muting the Operation Panel The operation panel will emit a sound when any button is pushed. This sound can be muted if it is desired. * Initial factory setting is with sound Hold the Power On/Off Button for five seconds. Muted Sound No sound...
  • Page 12: Setting And Using The Water Heater

    How to Use Setting and Using the Water Heater (Starting with the Power Off) Press the Power On/Off Button. The temperature will be displayed on the operation panel thermostat. Previous set temperature (Ex.: 110°F) DANGER To prevent scalding: High Temperature Hot Water Heater temperatures over 125°F (52°C) can cause severe burns instantly or death from scalding.
  • Page 13 Set temperature. Turn on hot Turn off the hot Always check the water. water. temperature setting before use. Cold Check the indicator lights. Water temperature When using °F mode: The maximum output temperature can be °F : The temperature settings below are examples. The temperature setting necessary depends on the usage, the length of piping and the time of year.
  • Page 14: Flow Meter Alarm

    How to Use Flow Meter Alarm 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 15 Water Temperature An alarm will sound for ten °F : The temperatures settings below are only examples. The seconds when the flow temperature setting necessary will depend on the usage, the length of piping and the time of year. reaches the set level. Warm Warmer °C (°F) :...
  • Page 16: Adjusting The Maximum Output Temperature

    How to Use Adjusting the Maximum Output Temperature Change the Turn off the Press and hold the flow temperature using power. meter alarm set button until the setting buttons. a sound is heard (2 sec.). Tone sounds after 2 sec. Down The upper limit of the hot-water supply temperature can be changed to...
  • Page 17: Preventing Damage From Freezing

    * 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*.
  • Page 18: Turning The Unit Back On

    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.
  • Page 19: 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. For dust and soot For laundry, newspaper, timber, Check Check in the flue terminal. oil, spray cans and other combustible materials.
  • Page 20: Periodic Maintenance

    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...
  • Page 21: 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.20 ) Unit attempts to ignite but fails • Reset unit and try again. There may be air in the gas line. •...
  • Page 22: Amount Of Hot Water

    Troubleshooting-2 (Continued) • The unit will not heat the water if the flow rate is less than The water is cold when only a single fixture is open. 0.5 gallons (2L) per minute. Open the fixture more or open other fixtures so that a greater flow passes through the unit, and the unit should begin heating again.
  • Page 23 Operation Panel The light on the power button does • Has there been a power failure? not come on. • 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.
  • Page 24 Source: EPA National Secondary Drinking Water Total Dissolved Solids : 500 mg/L or less Regulations (40 CFR Part 143.3) 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 25 If the flashing number doesn't return the problem is solved. Service warning The water heater is equipped with an automatic service reminder. Contact the nearest Noritz agent.* Abnormal combustion, Have a professional check the gas supply pressure. low gas supply pressure Contact the nearest Noritz agent.
  • Page 26: 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 as follows: twelve (12) years for the heat exchanger and ten (10) years for remaining parts.
  • Page 27: Gas Conversion

    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.
  • Page 28: Specifications

    • Specifications may be changed without prior notice. Specifications • The capacity may differ slightly, depending on the water pressure, water supply, piping conditions, and water temperature. Specifications Item Specification Model Name NR83-DVC Type Installation Indoor Wall Mounted Air Supply/Exhaust Power Vented Ignition Direct Ignition...

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