Does anyone pump the r410 into the outside unit and then do a change out? Im upgrading my system and my brother n law said we can just pump the freon back into the system and do the change out. I asked about type of tank is needed to hold the freon while changin the Air handle and outside heat pump
source https://hvac-talk.com/vbb/threads/2242667-Pump-down?goto=newpost
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