Noritz NC380-SV-ASME Owner's Manual

Noritz NC380-SV-ASME Owner's Manual

Tankless gas water heater
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TANKLESS GAS WATER HEATER
Owner's Guide
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
Accepted For Use
City of New York
Department of Buildings
MEA 19-03-E
SBA8380
Rev. 09/09
Model NC380-SV-ASME
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.
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
*SBA8380*

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Summary of Contents for Noritz NC380-SV-ASME

  • Page 1 Installation must conform with local codes, or in the absence of local codes, Approved by the National Fuel Gas Code, ANSI Z223.1/NFPA 54. SCAQMD Noritz America reserves the right to discontinue, or change at any time, the designs and/or specifications of its products without notice. Accepted For Use City of New York...
  • 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 • Do not try to light any valve. appliance. 4. Call the nearest Noritz agent • Do not touch any electrical switch; do not use any phone in your building. Explosion Hazard ;...
  • Page 4 Be sure to do. [When installing outdoors] Upper: Min. 36" For Natural Gas Left side: Right side: Min. 24" Min. 24" Front: NC380-SV-ASME Sug. 24" 380,000 22,500 [When installing indoors] 10.5 Sug. 3" from Upper: Min. 12" vent pipe* Left side: Right side: Min.
  • Page 5 Shock. hand. or other reproductive harm. This product Consult the nearest Noritz agent if may contain such substances, be their the water heater location needs to origin from fuel combustion (gas, oil) or be changed.
  • Page 6 This unit is only approved for installation blockage. up to 4500 ft. above sea level. For installations at higher elevations, contact Noritz Do not use parts other than those specified America for Instructions. for this equipment.
  • Page 7: Table Of Contents

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

    General Parts Main Unit Indoor/Outdoor Wall Mounted, Power Vented Model Flue Collar Front Cover Air Inlet Water Filter (Inside Water Inlet) ( p.19) Pressure Relief Valve Water Supply Valve Gas Supply Valve * The above illustration shows an example of installation. The exact installation configuration may be slightly different.
  • Page 9: Remote Controller

    Remote Controller (RC-7649M) 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 Remote Controller The remote controller 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 remote control thermostat. Previous set temperature (Ex.: 110°F) DANGER To prevent scalding: High Temperature Hot Water Heater temperatures over 125°F can cause severe burns instantly or death from scalding.
  • Page 13 Set temperature. Turn off the hot Turn on hot Always check the water. water. temperature setting before use. Cold Check the indicator lights. Water temperature The temperature settings below are examples. The temperature setting °F : necessary depends on the usage, the length of piping and the time of year. 105 110 115 120 125 130 135 140 145 150 160 170 180 Shower, hot water supply, Washing...
  • Page 14: Flow Meter Alarm

    How to Use Flow Meter Alarm (Starting with the power off) Set temperature. Press the Power Preparation Always check On/Off Button temperature setting before use. Plug the bath drain. Cold The temperature will be displayed on the remote control thermostat. Check the indicator lights.
  • Page 15 Water Temperature An alarm will sound for ten seconds when the flow The temperatures settings below are only examples. The °F : temperature setting necessary will depend on the usage, reaches the set level. the length of piping and the time of year. Warm Warmer The water will continue to run unless it is...
  • Page 16: 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 17: Turning The Unit Back On

    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 Drain water into a bucket to prevent water damage.
  • Page 18: Regular Maintenance

    Regular Maintenance 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 in Check Check For laundry, newspaper, the exhaust vent or timber, oil, spray cans exhaust vent terminal.
  • Page 19: Water Filter

    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 Cold Water...
  • Page 20: Troubleshooting

    Troubleshooting-1 Initial Operation • Check for reversed plumbing or crossed pipes. Unit does not attempt to ignite • Check the water filter. ( p.19) when water is running. Unit attempts to ignite but fails • Reset unit and try again. There may be air in the gas line. •...
  • Page 21: Amount Of Hot Water

    (Continued) • The unit will not heat the water if the flow rate is less than The water is cold when only a 0.7 GPM. 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.
  • Page 22: Remote Controller

    Troubleshooting-2 Remote Controller • Has there been a power failure? The light on the power button does 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 23: Water Quality

    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 24: Error Code Cause Action

    • If there is a range hood or kitchen fan in the room, turn it down. Abnormal combustion, Have a professional check the gas supply pressure. low gas supply pressure Contact the nearest Noritz agent. Abnormal combustion Contact the nearest Noritz agent. Contact Noritz America if: • Any other error code appears.
  • Page 25: Follow-Up Service

    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 within twelve (12) years of the date of original installation. 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.
  • Page 26: 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 NC380-SV-ASME Installation Indoor/ Outdoor, Wall Mounted Type Air Supply/Exhaust Power Vented Direct Ignition Ignition...

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