Originally Posted by sdowney717
When I first read your post, I thought he is replacing just the condenser coil.
But it seems you replacing the entire condenser and compressor, then entire thing except the evaporator and copper tubing and you want to use the SMX Cruisair controls?
I have the old style 3 switch Cruisair control. It is indeed simple, a few wires, reversing wire, power to the water pump, power to the compressor.
The ground is by way of the copper tubing.
Google SMX control wiring to convert from old style 3 switch off-start-run to research this,
Don't recall the names that Cruisair invented for these but in normal HVAC talk concerning the usual split system, a "condenser" is the coil, reversing valve and compressor. unit.... and the squirrel cage fan plus cooling coil is the "air handler"
So yes, by "condenser" I mean the unit with the compressor, cooling tubes, electrical box, reversing valve, etc. From further reading I am getting the impression these OB units were meant for the ancient 3 knob controls....but I'm basically in the dark until I get the manual they forgot to include with it.