How much freon?
How much freon?
(OP)
Can anyone tell me how to determin the amount of freon (134) is required in an automotive a/c system? I have installed a roof top a/c on a tractor and have no idea how much freon to put in.
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RE: How much freon?
Be careful
RE: How much freon?
RE: How much freon?
Rod
RE: How much freon?
If you don't feel comfortable, consider farming out the job.
Mike Halloran
Pembroke Pines, FL, USA
RE: How much freon?
RE: How much freon?
OR you can try measuring temperatures and pressures and calculating the superheat and subcool temperatures, as the refrigerant manufacturers recommend. I've tried it on occasion, but never trusted the numbers because I couldn't get temperature readings that I thought represented the temperature of the refrigerant, by measuring the exterior of various tubes or fittings, and I wasn't prepared to open the system to install temperature probes.
Mike Halloran
Pembroke Pines, FL, USA