View Full Version : liquid line filter drier
06-11-2006, 11:41 PM
Do All Hvac systems need a liquid line filter drier?
06-11-2006, 11:46 PM
06-11-2006, 11:47 PM
They don't need one to run... so to speak. But it will help it run longer by keeping the moisture and trash from getting where it shouldn't.
Keep in mind a lot of units now come with a filter/drier inside the unit, so you may not see one on the outside.
06-12-2006, 01:03 AM
Every HVAC system should have a filter-drier installed. Not an essential component in so far as a filter-drier is not necessary to the cooling cycle but the filter-drier will help protect the system.
For more information on the need for a filter-drier see my article at this link.
I would never install a system without one. And, I would always replace it each time I opened the system for service.
06-12-2006, 01:43 AM
None of them "need" one but all of them should have one.
06-12-2006, 09:13 AM
Require filter dryer, especially for hermetically sealed air conditioners. Example is a window air conditioner.
However, the installation has to be controlled, without any moisture ingress. Servicing is normally not possible at the client's place.
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