Noritz NRC661 DV Owner's Manual

Noritz NRC661 DV Owner's Manual

Condensing tankless gas water heater

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CONDENSING TANKLESS GAS WATER HEATER
Owner's Guide
FOR USE IN RESIDENTIAL 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)
SBB8067-3
Rev. 01/17
Models : NRC711-DV (For USA and Canada)
NRC711-OD (For USA only)
NRC661A-DV (For USA and Canada)
NRC661A-OD (For USA only)
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
*SBB8067*

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Table of Contents
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Summarization of Contents

Important Safety Information
Icons Warning of Risk Level
Explanation of safety alert symbols like DANGER, WARNING, and CAUTION.
Other Icons
Description of various operational and warning icons used in the manual.
Overview of Condensing Tankless Gas Water Heater
Condensate Discharge
Explains the normal discharge of condensate from the unit.
White Steam Explanation
Clarifies that white steam at the vent terminal is a normal occurrence.
Unit Components
Indoor Unit Components
Identifies key components of the indoor wall-mounted models.
Outdoor Unit Components
Identifies key components of the outdoor wall-mounted models.
Remote Controller Overview
Burner On Indicator
Description of the burner status indicator on the remote.
Priority Indicator
Explanation of the priority indicator on the remote controller.
Temperature Setting
Details on the temperature display and setting on the remote.
Flow Meter Setting
Information about the flow meter setting display on the remote.
Error Code
Indicates where error codes are displayed on the remote controller.
Remote Controller Settings
Muting the Remote Controller
Instructions on how to mute the button sounds on the remote controller.
Adjusting Maximum Output Temperature
Procedure for changing the maximum hot water supply temperature.
Preventing Damage from Freezing
Automatic Freeze Prevention
Details on the unit's automatic freeze prevention features.
Extreme Cold Measures
Steps to protect the unit during extremely cold temperatures.
Frozen Unit Procedures
Actions to take if the unit or its piping freezes.
Regular Maintenance
Periodic Inspection
Routine checks for air supply, combustibles, leaks, and sounds.
Unit Cleaning
Instructions for cleaning the exterior of the main unit.
Remote Controller Cleaning
Proper methods for cleaning the remote controller surface.
Troubleshooting: Error Codes
Error Code Interpretation
Guide to understanding and responding to unit error codes.
Troubleshooting: Initial Operation and Temperature
Initial Operation Problems
Solutions for issues encountered during initial unit startup.
Temperature Issues
Troubleshooting steps for problems related to hot water temperature.
Troubleshooting: Remote Controller and Sounds
Remote Controller Problems
Troubleshooting issues specific to the remote controller's functionality.
Operational Sounds
Explanation of normal and abnormal noises from the unit.
Follow-up Service
Requesting Service
Guidance on how to contact Noritz for service and support.
Warranty and Parts
Information regarding product warranty and availability of repair parts.
Reinstallation
Considerations for moving and reinstalling the water heater unit.

Table of Contents