piecing together an A/C system
Okay, here's the deal, I'm installing a motor for a customer at work, the new motor that's going in, came out of a car, along with the A/C compressor, hoses, Condenser, water control valve and drier (yes, I will replace it) I've already found an evaporator core and new expansion valve for a reasonable price (under $60 for both)
Yes, I know I have to modify my heater box, or build/buy a new one, I'm not worried about that, my question is do I need a low pressure switch or not? the compressor has a high pressure switch attatched to it, but the drier doesn't have any signs of a low switch, just a place to install one, but no wiring was running that direction at all.
I'm figuring controlling the clutch lock-up could come from the HVAC controls that are already in place (add a switch to the "cold" side of the heater controls?) and it shouldn't be hard at all to add a vacuum control for the water valve.