Davidbaskin52
New Member
Installed a NCB-180E with the intentions of using the DHW part of the water heater prior to hooking up my radiant flooring to the system. So far when I power up the NCP-180E, everything looks normal with no error codes. When I turn on a hot water faucet the unit sees flow, but does not kick on to heat the water. I do have the Navien recommended manifold connected to the space heating side of the water heater, but it is not connected to anything. The question is can you run the NCB-180E in DHW mode only or do I need to connect my radiant flooring to the system. Thank you in advance for your help.