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Navien CH-240 ASME Outdoor reset Connection
in Gas Heating
HI, I have a Navien CH-240 ASME and I'm trying to install the outdoor temp sensor. I bought the sensor pt. # NASS9EXOS001 but it didn't come with a cable.I thought I could connect thermostat wire right to the circuit board, but there is a small 2 pin connector on the board. Has anyone installed one of these. Any advice would be greatly appreciated... Thanks.. Victor in Swansea, Ma.
The wiring harness comes with the boiler. You may need to order that, too.0
Jstar thanks for the reply. I have searched on-line for the harness, but can't find anything. Is that something i need to order from Navien...0
The pigtail connector comes with the unit. It has blue wire on mine. If it didn't come with the unit, call Navien and have them send you one.The bitterness of poor quality remains long after the sweetness of low price is forgotten.0
I called Navien, they are sending me the wire with the molex connector free of charge. thanks for the replies....0
If you're working on your own system
You might want to have them send you a service manual if you don't already have one. The I & O manuals come with the unit and are available online but the service manual seems to have to come directly from Navien.
I've found their support to be excellent.The bitterness of poor quality remains long after the sweetness of low price is forgotten.0
Heres a link for the service manual
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