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air conditioning units in apartment condos.

There are a number of apartment condo buildings around suburban Baltimore usually with gas heat and regular direct expansion cooling units installed thru the wall.  These units use refrigerant 22, I believe.  I wonder how these units will be replaced when the R22 units are no longer available since the condenser coils on R410A units seem to be considerably larger.
  • December 02 2010 - Baltimore
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