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Noritz NRC111-DV User Manual

Noritz NRC111-DV
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SBA8370
Rev. 09/09
Models: NRC111-SV
NRC111-DV*
CONDENSING TANKLESS GAS WATER HEATER
Owner’s Guide
NORITZ America Corporation
Low NOx
Approved by
SCAQMD
CERTIFIED
R
- 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.
If the information in this manual is not followed exactly, a fire or explosion
may result causing property damage, personal injury, or death.
WARNING
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.
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 (NRC111-DV only).
Noritz America reserves the right to discontinue, or change at any time, the
designs and/or specifications of its products without notice.
* FOR USE IN RESIDENTIAL, COMMERCIAL, OR MANUFACTURED HOME APPLICATIONS.
Accepted For Use
City of New York
Department of Buildings
MEA 19-03-E
*SBA8370*

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Noritz NRC111-DV Specifications

General IconGeneral
BrandNoritz
ModelNRC111-DV
CategoryWater Heater
LanguageEnglish

Summary

Important Safety Information-1

Safety Alert Iconography

Explains safety alert symbols and risk levels (DANGER, WARNING, CAUTION).

Flammable Vapors Hazard

Warns about explosion risk from flammable liquids and vapors.

Scalding Hazard Warning

Warns about severe burns from hot water over 125°F.

Specific Safety Warnings

Exhaust Pipe Condition

Warnings regarding displaced, clogged, or damaged exhaust pipes.

Gas Leak Detection and Response

Steps to take if a gas leak is detected or during emergencies.

Water Submersion Hazard

Do not use the water heater if any part has been under water.

Explosion Hazard and T&P Valve

Warning about the temperature and pressure relief valve and potential explosion hazard.

Important Safety Information-2

Exhaust Vent Terminal Placement

Instructions on correct placement of the exhaust vent terminal to prevent hazards.

Installation Location Restrictions

Prohibits installation in specific locations like RVs or boats due to CO poisoning risk.

Flammable Materials Proximity

Warnings against storing flammable liquids or combustibles near the heater.

Gas and Power Supply Verification

Ensures the supplied gas and power match the rating plate specifications.

Professional Installation Requirement

Reiteration that installation and service must be by a qualified professional.

Important Safety Information-3

Water Consumption Precautions

Advice on not drinking stagnant water or first use hot water.

Remote Controller Care and Cleaning

Instructions on cleaning and handling the remote controller to prevent damage.

Freezing Prevention Measures

Measures to prevent damage from freezing, especially during long periods of non-use.

Snow/Ice Vent Blockage Check

Advise to check air inlet and vent terminals for blockages during snowy conditions.

Overview of Condensing Tankless Gas Water Heater

Condensate Discharge Explanation

Explains that the unit discharges condensate and how to handle the drain pipe.

White Steam Emission

Explains that white steam from the vent terminal is normal during operation.

General Parts-1

Main Unit Components

Identifies key parts of the main indoor/outdoor wall-mounted unit.

NRC111-DV Components

Identifies key parts of the NRC111-DV indoor wall-mounted unit.

General Parts-2

Remote Controller (RC-7649M) Overview

Identifies and explains the functions of the remote controller's display and buttons.

Initial Operation

Preparation and Setup Steps

Outlines the four essential steps to prepare the water heater before first use.

How to Use: Setting and Using the Water Heater

Power On/Off and Temperature Display

Instructions on turning the unit on and how the temperature is displayed on the remote.

Scalding Prevention in Use

Reinforces warnings about high temperatures and checking water before use.

How to Use: Flow Meter Alarm

Flow Meter Alarm Setup

Steps to prepare and set the temperature before configuring the flow meter alarm.

Adjusting Flow Meter Alarm

Guide on setting the flow meter alarm level and its function.

Flow Meter Alarm Scenarios

Explains how the alarm indicates when a tub is full or other scenarios.

How to Use: Muting the Remote Controller

Muting Controller Sounds

Instructions on how to mute the sounds emitted by the remote controller.

How to Use: Adjusting the Maximum Output Temperature

Setting Maximum Output Temperature

Steps to adjust the upper limit of the hot water supply temperature.

Preventing Damage from Freezing-1

Automatic Freeze Prevention

Explains how the unit automatically prevents freezing and limitations.

Extreme Cold Temperature Measures

Specific steps to take for preventing freezing in extremely cold conditions.

Frozen Unit Procedure

Steps to follow if the water heater or piping becomes frozen.

Preventing Damage from Freezing-2

Turning the Unit Back On

Steps to follow to safely turn the unit back on after draining or a long period of non-use.

Neutralizer Unit Water Fill

Emphasizes filling the neutralizer unit with water to prevent dangerous gas entry.

Regular Maintenance-1

Periodic Inspection Checklist

Lists items to check periodically for proper operation and safety.

Equipment and Remote Controller Cleaning

Instructions for cleaning the exterior of the unit and the remote controller.

Regular Maintenance-2

Water Drain Valve Filter Cleaning

Step-by-step guide to cleaning the filter on the water drain valve.

Optional Isolation Valves

Information about optional isolation valves for testing and flushing.

Troubleshooting-1

Initial Operation Troubleshooting

Common issues during initial operation and their solutions.

Temperature Troubleshooting

Addresses problems with no hot water, incorrect temperature, or slow heating.

Troubleshooting-2

Hot Water Flow Issues

Addresses issues with fluctuating hot water temperatures and flow amounts.

Hot Water Amount Consistency

Discusses constant, tub fill, and decreasing hot water amounts.

Troubleshooting-3

Remote Controller Issues

Common problems with the remote controller's display, buttons, or power.

Sound and Fan Operation

Explains normal operating sounds and fan operation for freezing prevention.

Heater Operation and Exhaust Smoke

Checks for issues when the heater stops operating or produces white smoke.

Water Appearance and Quality Issues

Explains causes for turbid/blue water and lists water quality standards for warranty.

Check for an Error Code

Error Code Interpretation

Explains how error codes are displayed and provides a table of codes, causes, and actions.

Follow-up Service

Requesting Service and Support

Details on what information is needed when requesting service and contact information.

Warranty and Parts Information

Mentions warranty registration, terms, and stocking periods for repair parts.

Reinstallation Guidelines

Advice on confirming gas and power supply availability for reinstallation.

Gas Conversion

Gas Conversion Requirements

Explains the need for conversion kits and professional installation for different gas types.

Conversion Kit Models and Parts

Lists conversion kits for specific models and the parts included in the kit.

Post-Conversion Checks

Details necessary adjustments, pressure verification, and leak checks after conversion.

Specifications

Model and Installation Specifications

Provides detailed specifications for NRC111-SV and NRC111-DV models.

Performance Specifications

Details performance metrics like gas consumption, hot water capacity, and temperature settings.

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