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Topic History of: Is a little moisture in the system really such a b
Max. showing the last posts - (Last post first)

Author	Message
tom baker	Hi, In case, you are looking for a do-it-yourself assistance on initial and ongoing assistance with the HVAC installation process, contact www.ductworks.net. They have over 50,000 HVAC parts available to us including: Furnaces, AC, Heat Pumps, Custom/Standard ductwork, Insulated fiber ductwork and replacement parts for most makes and models
Jonny D	Moisture causes internal icing that obstructs the orifice tube or expansion valve. This can create excessive high pressures and low cooling. The A/C system is a closed loop system so why does it need a Drier to remove moisture? Here's how moisture gets into the system. Refrigerant charged through service hoses not evacuated after being connected to the system will have air and moisture in them. Hoses left uncapped while replacing components allows moisture to enter. Refrigerant oil is hydroscopic (water absorbing like a sponge) and left uncapped will have moisture in it. Recycling machines with old filters will not remove moisture from incoming refrigerant. Condensation created when the Low side of the system gets cold and then warms up when the system is turned off is absorbed into the system through the hoses. Systems low on freon will pull moisture into the system when they go into a partial vacuum.