If your system uses the clutch cycling on and off to regulate the temp Joe: I've never looked atone of these compressors, but I can't see why you'd need a clutch. Just turn the motor on and off. Especially if the system had an "unloader valve" like a home A/C system does. But I don't think Mick groks what you are trying to get across. This system is going to take a LOT of electrical power to get the job done. Power that was (almost) free with a conventional A/C system, like airflow through the condenser and rotating the compressor, is now going to be provided by the alternator which might be as much as 60-70% efficient. The other 30-40% will be engine horsepower turned into heat.
Last edited by Bill Hanlon; 08/24/2025 5:33 PM.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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