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Old 16-06-2015, 08:01 PM   #5950
Join Date: Nov 2008
Posts: 1,690
oh, so just change the outdoor unit can liao ah... well, the indoor unit already quite old.. think might be a time to change also, so does it mean the piping for the old unit can no longer be used by the new unit?
Ya if wanna change to inverter unit..
The Cooper & wiring all must be new.
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