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General| Type | Tankless Water Heater |
|---|---|
| Flow Rate | 6.6 GPM |
| GPM at 35°F Rise | 6.6 GPM |
| GPM at 45°F Rise | 5.1 GPM |
| GPM at 77°F Rise | 3.0 GPM |
| Gas Type | Natural Gas |
| Energy Factor | 0.82 |
| Temperature Range | 100°F - 140°F |
| Electrical Requirements | 120V |
| Venting | Direct Vent |
Explains the meaning of danger, warning, and caution icons used in the manual.
Details various warning and prohibition icons related to safe operation and handling.
Warns about CO poisoning, flammable products, and other safety concerns.
Covers water quality impact on warranty and measures to prevent freezing damage.
Illustrates and labels the main components of the different Noritz water heater models.
Identifies and explains the indicators and buttons on the optional remote controller.
Outlines the four essential steps to prepare the water heater before its first use.
Describes how to operate the water heater without a remote, focusing on temperature mixing.
Details turning on and setting the desired temperature using the remote controller.
Guides users on setting the flow meter alarm for functions like filling a tub.
Explains how to mute audible feedback from the remote controller buttons.
Provides instructions for adjusting the maximum hot water supply temperature via the remote.
Advises on preventing freezing damage, including specific steps for cold weather.
Details the steps for draining the water heater when it will not be used for an extended period.
Lists checks for safe operation, including combustible materials, leaks, and air inlets.
Covers cleaning the equipment exterior and the remote controller.
Mentions optional isolation valves for diagnostics and system flushing.
Addresses problems related to unit ignition when water is running.
Covers issues where hot water is unavailable, too hot, or not hot enough.
Details problems with the remote controller, fan, motor noises, and normal operating sounds.
Addresses heater stopping, exhaust smoke, turbid water, and blue water discoloration.
Lists recommended water quality parameters to ensure warranty and prevent damage.
Explains how to interpret and resolve flashing light errors on the unit and controller error codes.
Provides instructions on contacting Noritz America for technical support and service.
Outlines warranty coverage, registration, and post-warranty repair policies.
Explains the procedure for converting the unit to a different gas type, including kits and responsibilities.
Lists detailed specifications for NR71-SV and NR71-OD models, including dimensions and materials.
Provides performance metrics for NR71 models, such as gas consumption and hot water capacity.
Lists detailed specifications for NR66-SV and NR66-OD models, including dimensions and materials.
Provides performance metrics for NR66 models, such as gas consumption and hot water capacity.
Lists detailed specifications for the NR50-OD model, including dimensions and materials.
Provides performance metrics for the NR50-OD model, such as gas consumption and hot water capacity.
