To Next PageTo Next PageWhy is my Noritz ecoTOUGH NRC711-DV Water Heater not heating water when the flow rate is low?
If your Noritz Water Heater isn't heating water and the flow rate is less than 0.5 gallons (2L) per minute, try opening the fixture more or opening other fixtures. Increasing the water flow through the unit should allow it to begin heating again.
What to do if my Noritz ecoTOUGH NRC711-DV detects scale build-up in the heat exchanger?
If your Noritz Water Heater detects scale build-up in the heat exchanger, the heat exchanger needs to be flushed to remove the scale build-up.
What to do if my Noritz Water Heater repeatedly detects scale build-up?
If your Noritz Water Heater detects scale build-up in the heat exchanger repeatedly, you must flush the heat exchanger to remove the scale build-up.
What to do if the light on the power button of my Noritz ecoTOUGH NRC711-DV does not come on?
If the light on the power button of your Noritz Water Heater doesn't illuminate, first check for a power failure. Also, ensure that the unit is properly connected to a power source.
How to fix a Noritz Water Heater that won't fire due to overheating?
If your Noritz Water Heater isn't firing because it's overheating the outlet water, try cleaning the water filter to remove any debris.
How to troubleshoot an ignition error on a Noritz Water Heater?
If you experience ignition errors with your Noritz Water Heater, verify that the gas valve is open. Then, try these steps: 1. Unplug the unit from power or press the power button on the optional remote controller to turn the unit off. 2. Open a hot water fixture. 3. Turn the unit back on. If the error doesn't return, the problem is resolved.
What causes abnormal combustion in a Noritz ecoTOUGH NRC711-DV Water Heater and how to fix it?
If your Noritz Water Heater is experiencing abnormal combustion due to a clogged air supply vent, you should clean the air supply vent.
What to do if my Noritz ecoTOUGH NRC711-DV Water Heater has abnormal combustion due to low gas pressure?
If your Noritz Water Heater is experiencing abnormal combustion due to low gas supply pressure, have a professional check the gas supply pressure.
Is it normal for my Noritz ecoTOUGH NRC711-DV Water Heater to have condensation inside?
Condensation forming inside your Noritz Water Heater during operation and discharging from the drain pipe is normal.
General| Type | Tankless |
|---|---|
| Category | Residential |
| Fuel Type | Gas |
| Gas Type | Natural Gas |
| Temperature Range | 100°F - 140°F |
| Venting | Direct Vent |
| Heating Capacity | 199, 000 BTU |
| Maximum BTU Input | 199, 000 BTU |
| Energy Factor | 0.95 |
| Electrical | 120V |
| Ignition Type | Electronic Ignition |
| Warranty | 12 years heat exchanger, 5 years parts |
Essential safety alerts regarding fire, explosion, and personal injury hazards.
Definitions and explanations of hazard alert symbols (DANGER, WARNING, CAUTION).
Procedures for handling gas leaks and preventing explosions.
Safety guidelines for exhaust venting, unit clearances, and proximity of combustible materials.
Precautions for electrical connections, cord handling, and safe unit operation.
Guidelines on water quality, cleaning, and preventing freeze damage.
Explanation of the condensing water heater's functionality, condensate, and steam.
Identification of key components for both NRC711-DV and NRC711-OD models.
Explanation of the unit's display window and its various indicators.
A sequential guide for the initial setup and preparation of the water heater.
Instructions for operating the heater directly, without the optional remote.
Introduction to the optional remote controller and its capabilities.
Detailed guide on adjusting the water temperature using the remote controller.
Instructions for setting up and using the flow meter alarm feature on the remote.
How to mute button sounds and set maximum temperature limits via the remote.
Measures to prevent freezing damage in cold weather and how the unit operates.
Procedure for draining the unit to prevent freeze damage during periods of non-use.
Steps to safely restart the water heater after it has been turned off or drained.
Routine checks and cleaning procedures for maintaining the unit's performance.
Instructions for cleaning the filter in the water drain valve for optimal function.
Importance of water quality and flushing to prevent heat exchanger damage from scale.
How to identify and resolve error codes displayed by the water heater.
Solutions for common issues during initial setup and temperature-related problems.
Addressing problems with water flow rate, temperature consistency, and insufficient hot water.
Resolving issues with inconsistent hot water supply and remote controller malfunctions.
Identifying and fixing unusual sounds and operational problems like unit shutdowns.
Information on how to request technical assistance and understand warranty coverage.
Details on gas conversion kits, model compatibility, and the installation process.
Comprehensive specifications including dimensions, materials, and performance capabilities.
