ReplyIf it's in the discharge line,it's not a filter drier,it's a discharge muffler. They look the same on the exterior,but these are not to remove moisture.
Professional Member*
why on trane and york package systems the filter drier is on the dicharge line isnt this location a little too hot for these? always stumped on this had a few bad compressors recently, and i feel as these filters being on discharge are getting too hot and contaminating system. any input or opinions are much appriciated.
p.s i always remove and install by flow for HP on liquid line and one way flow on AC on liquid line.....
New Guest
If it's in the discharge line,it's not a filter drier,it's a discharge muffler. They look the same on the exterior,but these are not to remove moisture.
Professional Member
it is not a drier...it is a muffler...at least it SHOULD be...if it really is a filter/drier, then perhaps you are following around a contractor who doesn't know any better.
"Right" is not the same as "Wise".
Don't step on my favorite part of the Constitution just to point out your favorite part.
Just because you can measure it, doesn't mean it is important. Just because you can't measure it, doesn't mean it isn't important.
Professional Member*
no its a filter drier from manufacture ir says right on it.... thank for the reply i know the mufflers but this is a filter drier.
Professional Member
You are right it is a filter drier, had a customer that had 3 compressor failures and the company doing the work thought it was a muffler and never changed it. It was a split York heat pump figured it was an engineer that wanted to protect the 4 way valve. We took it out and used a byflow outside the unit no more compressor failures
Professional Member
I have never seen a filter drier on the discharge line of a Trane RTU and I work on a lot of them. So how old is the units you are finding this on and do they also have a filter on the liquid line?
Professional Member*
i dont have excact model and serial but it is 3 phase 4 ton 460 v heat pump package unit and 2 failed compressor i only replaced one. never pulled out that filter drier/ muffler b cuz i thought it was a muffler too. when i warantied my comp. i pulled the so called muffler out and sure thing it was a filter drier. installed outside of OD coil/condenser and new comp no more problems. i have also seen this on a couple 3 and 4 ton york gas packs as well.
Professional Member*
There is no problem in applying a filter-drier in the discharge line....providing it is a SOLID CORE filter-drier. York has done this for years, and is the result of extensive testing to proove out the theory. The likely reason is that a standard filter-drier is less expensive than the reversible filter-drier. Installing it in the discharge line eliminates the need for a reversible filter-drier on a heat pump.
Due to the higher temperature in the discharge line, the filter-drier will have a reduced water capacity.
Sporlan has never disagreed with the practice, although their recommendation is that the liquid line is the best place for a filter-drier.
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