View Full Version : heat pump expansion valves
jasonmcalister
10-09-2010, 04:15 PM
is there any difference between an outdoor expansion valve and an indoor expansion valve on a heat pump
Brian_UK
10-09-2010, 05:06 PM
Not normally, they both do the same job.
tonyelian
11-09-2010, 06:29 PM
hi
if i understand your question there is a difference between not in function but the out side has a bigger orifice for the heating mode
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