Tana0005 0 Report post Posted June 3, 2011 Hi, can someone enlighten me or share with us here what are we expecting of the 2 time air con installation?I know the first time, they will run the trunking and pipes. The second round they will fit the units. I have heard of vacuuming of the pipes? When it is done? Is it compulsory? What else do we need to check?Is there a check list to go thru to ensure we are not short change? Thanks Share this post Link to post Share on other sites