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Old 10-06-2014, 01:15 PM   #4490
limchyehuat
Senior Member
 
Join Date: Apr 2004
Posts: 500
Hi if i want to change my system 4 unit. Can i keep the gas and water pipings and cables and just change the indoor and outdoor units as all items are inside trunking and some concealed. About 14 yrs old already.
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