Just installed a CB180 or CB199? Get some tips here. This guide is to help get your CB180 or CB199 wired and started up correctly. If you don’t have the physical copy of the installation and owners guide, please download them from our Support Site to understand the full scope…
Thermostat T-T connection, CB180-DV, CB199-DV The thermostat (T-T) is wired to CN15 on the circuit board as shown on page 34 of the installation manual (found here: http://support.noritz.com/technical-literature.php). See image 1 below. DO NOT connect your thermostat T-T to the “Heat Demand Input” connection next to the Display Panel (Image…
CB180 and CB199 Wifi Compatibility No. Unfortunately the CB uses a different logic board that is not compatible with our Noritz Connect wifi system.
Program clock and recirculation schedule on the NRCP (2019) series. Setting the Clock Setting the recirculation schedule:
The filter, located on the cold water inlet fitting, should be checked for debris about once a year. The front cover, fan, and venting should be checked for dust and debris. Depending on water quality, a heat exchanger flush may be necessary as well. Further detail can be found in…
Depending on your unit, the inlet filter might be located under the unit (similar to the image below) or on top of the unit (as the video shows) where the cold water goes in. Applicable Models Models: ALL MODELS
Descaling and flushing your tankless water heater for proper maintenance. If you live in an area with hard water but do not have a water softening system or a Noritz anti-scale treatment device, you will need to descale the unit periodically based on the guidelines in the manual. In the…
The branch pipe is needed when using crossover mode. When installing the NRCR with a crossover valve, the cold water inlet and the recirculation inlet of the unit need to be joined. Installers can make their own or purchase this premade kit to save time! Part #: CSV-BPK Additionally, the…
When using the default auto learning mode with the NRCR the unit will automatically adjust the recirculation schedule based on the usage. It does this by remembering when you use hot water and if you don’t use hot water during a remembered time for 3 days, it will remove that…
Customize your NRCR settings The NRCR has a pre-run feature that will start running the recirculation pump ahead of the scheduled hour. Whether you use the auto learning mode or choose to set your own times with the optional commercial remote or wifi adapter, the default setting is 15 minutes…