Results 14 to 17 of 17
02-08-2013, 04:10 PM #14
But I installed 1 or 2 RVs backwards already. They have relays in the control panel now to make the system work right.Contractor locator map
How many times must one fix something before it is fixed?
02-08-2013, 08:25 PM #15
The only Carrier heat pumps I remember that energize the reversing valve in the heating mode OLD units, and had no O terminal. The RV was energized by W1, were run by relay logic(lots of relays, both 24 and 240v), and had electromechanical defrost controls.
If more government is the answer, then it's a really stupid question.
02-08-2013, 10:56 PM #16
02-09-2013, 03:23 PM #17
Yea, I just installed new low voltage wiring from the unit to the thermostat on a 2 year old package heat pump rheem.
It was burning up a contactor in 4 days due to chattering.
The unit energized the RV in the heat mode. Kind of confused me for a minute because X (brown) was common and Blue (which is labeled D on the board) is the RV turn on.