How to install an external remote
This article will detail the installation of a remote accessory on the Noritz tankless water heater. How to Install Remotes...
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Technical Tips
Technical resources and step by step instructionals for maintenance and troubleshooting
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How do I raise the temperature above 120F?
Looking to raise your Noritz tankless water heater temperature above the default 120 degrees Fahrenheit? Bypass the Default Noritz Temperature... -
Changing Remote between F and C
Residential Remotes RC-7651M, RC-7651M-A and the Commercial Remote RC-9018M feature the ability to display set temperatures in either F (default)... -
Clean or Change the NRC663 (EZTR40) Fan
Fan maintenance for NRC663 (EZTR40) -
Clean or Change the Fan for a Pre-Mix Unit
Video for maintenance on a Pre-Mix Noritz Tankless -
Connecting a 6 Unit Internal System Controller
This video will show you the basics of properly connecting a 6 unit internal system controller for commercial units. -
How to Size a Tankless Water Heater
This video will walk you through the preliminary steps in helping you in size for a tankless water heater. -
How do I descale/flush the heat exchanger
Descaling and flushing your tankless water heater for proper maintenance. If you live in an area with hard water but... -
How to Clean Inlet Filter
Depending on your unit, the inlet filter might be located under the unit (similar to the image below) or on... -
What maintenance is recommended?
The filter, located on the cold water inlet fitting, should be checked for debris about once a year. The front... -
What if there is a power outage?
Will I get hot water if there is a power outage? Tankless heaters will not work if there is a... -
What size pump should I use on my recirculation system?
Selecting the correct size recirculation pump is a fairly involved process and there is not a “one size fits all”... -
Installation of the VC-6-1
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Replacing a Circuit Board for Pre-Mix Units
This includes the NRCR, EZ Series and NCC199CDV This guide applies to the NRCR, EZ Series and the NCC199CDV. The... -
Heat Exchanger Replacement Procedure
The following list has downloadable PDFS for reference in replacing a Noritz Tankless heat exchanger. See the list below for...
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