Quote:
Originally Posted by retiredusps69
I think some of the TT run the ac with cable like a phone jack. If you want to use normal thermostat wire and not pull all new way not use the old style wire to modular plug adaptor. You can hide it some place close and skip pulling the whole run to the roof. R45j plug to bell wire. I think i have the correct number.
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I am not sure I understand what you are saying. The existing wiring is one wire (not counting ground and +12VDC) and the thermostat I want to use needs at least 4 plus ground + 12VDC. One for heat, one for A/C, one for fan, one for emergency heat (maybe).
If you are suggesting pulling an RJ45 cable with appropriate plugs and wiring at each end versus pulling half a dozen very small wires (might be in a cable) in a single pull that might be a good idea, but it's a no-brainer either way. I will run the wire through the cold air ceiling ducts and bring it down the central service space that is directly under the A/C duct.