Browse Forums Heating, Cooling & Insulation 1 Nov 01, 2009 7:07 pm Hi Guys, We recently became the proud owners of a 2 story townhouse. I have a question about air-conditioning. Our townhouse is about 9 months old; I'm the first owner although it wasn't bought new. It had been rented out for 6 months prior to me buying it. I want to get split air-conditioning installed, and while searching around to see where it could go I've found some interesting things. There is already copper air-con pipe (one thick and one thin) sticking out of the roof in the garage along with electrical flex and control cables. It looks like the builder was going to install air-con but didn't in the end. In the upstairs roof space I can see the other end of the copper pipes, along with some electrical flex and what looks like the same control cabling. All looks good I thought, this should make it easier to get a ducted split system installed upstairs. (There is enough room to walk around in the roof space) Here is the interesting part. If I look in the roof space downstairs (i.e. between the roof downstairs and the floor upstairs, which I can see above the fridge behind the kitchen cupboards), I can see the ends of another set of thin and thick copper pipes along with electrical flex and control cable. Does anyone here think that this might have been setup to install a multi-head air-con unit? There is only one thin and one thick copper pipe in the garage, so I am assuming that there must be a split/join somewhere along the copper pipe in the wall cavity. Is this how mulit-head air-con units are plumbed? If I get an air-con installer in, would he even be able to make use of all this copper pipe? Or is there too many unknowns? Re: Split Air-con install question 2Nov 01, 2009 7:58 pm Sounds like alot of unknowns multi head splits normally have to sets of pipes for example pair down stairs and a pair upstairs but where the outside unit is to go you should have 4 pipes maybe try and get on to the builder to find out who installed the pipe work Re: Split Air-con install question 3Nov 01, 2009 8:27 pm Thanks Brad75, That's what I thought, that there should be 4 pipes at the compressor end. I have a contact number for the electrician who wired up all the townhouses here, I'll give him a call next and see what he knows. Cheers Re: Split Air-con install question 4Nov 01, 2009 10:11 pm Ahh, although after a little bit more googling the brand I'm after (Mitsubishi Heavy Ind.) looks like they use branch pipes (to split the pipes up for each indoor head unit) and only have 2 pipes attached to the outdoor unit. But I guess I still need to find out what the guy actually did who installed these pipes in the wall. Cheers Re: Split Air-con install question 5Feb 08, 2010 9:08 pm Just thought I'd update if anyone is interested. After getting a hold of the electrician/aircon guy who wired the townhouse up whilst it was being built, I decided to go with a more reliable Air Conditioning Installer. Because this original guy had trouble keeping appointments. And I found in some of his original electrical work here he had used green/yellow cable for an active. The most excellent air-con installer I used traced the copper aircon pipes installed by the builder, capped off the unused pipes. As the guy who installed the pipes split them twice along their length, for a variable refrigerant flow multi split system. He also found a hole in one of the original welds, even though the guy who installed the pipes said he had pressure tested them. He then put in a Dakin Ducted 7.1kW Super Inverter. With 2 outlets upstairs, and one downstairs in the lounge room. And 2 zones. He used the back of one of the built in wardrobes upstairs to get the duct down in to the lounge room ceiling. It's only a smallish 2 bedroom townhouse. And installed the outdoor unit down under the townhouse where the copper pipes came out of the cement floor. And I have to say ducted air-con is awesome!!! I've never had it in any other house I've lived in. 0 6287 How do you remove one of these ceiling air con vents? And is it possible to disconnect the duct joined to the vent from inside the house, without going into the roof cavity? 0 5929 Hi all, sorting out the ducted air con for a 350sqm double story house. Does this placement sound reasonable to you? Also, I plan to have 6 zones I think. Living room… 0 0 |