Browse Forums Heating, Cooling & Insulation 1 Apr 06, 2010 10:48 pm Anyone have a Multi-head split system? Any advice, experience, do's and don'ts? For those who don't know, it's where you can have multiple indoor units connect to one outdoor unit. I was thinking this could be a better option than zoned ducted. I am sure the initial cost is a little more, but the amount of control would be amazing! Thanks in advance. Re: Multi-head split system 3Apr 07, 2010 11:23 am 4 at the most, One in each bedroom and one in the main living area. The KW works out to be the same as a normal ducted unit, 7-8KW for the main living area and 2.5 for the bedrooms. About 15KW in total. I know Daikin, LG and Mitsubishi do these systems. I think I will go with LG or Daikin. The only limitation I know of in residential systems is that you cannot have a system heating while the others are cooling and you can have one system that gets priority "compressor time" over the others if the system is running at max. Be interesting to see other peoples experiences. Re: Multi-head split system 4Apr 07, 2010 11:27 am can enlighten me on how much that system can cost VICTORY 1800, EN-SUITE, DOUBLE GARAGE, FAMILY ROOM AND ALFRESCO Land Settled: 20 July 2010 Site Scrap: 30 August 2010 Slab Pour: 20 September 2010 Frame Complete: 23 September 2010 Fascia and Gutters: 28 September 2010 Roof Complete: 06 October 2010 Lock-up complete: 28 October 2010 Plaster complete: 29 October 2010 Fix-out complete: 22 Nov 2010 PCI 7 FEBRUARY 2011 Re: Multi-head split system 5Apr 07, 2010 11:52 am Depending on the brand and installer, I beleive the cost is comparable to a zoned ducted system, if anything it would have a slight premium as it is not a "standard" install. I think any cost would be worth it as you can condition each room to a different tempriture, control the fan speed ect. Unlike many (not all) ducted systems that require a constant zone to always be open you can condition just one area. Also you dont need to worry about ducts in a hot/cold roof cavity blowing off, leaking or perishing over time. Annother bonus I just thought about is you dont need to have room doors open for the air to circulate back to a return vent. Still curious about others experiences. Re: Multi-head split system 6Apr 07, 2010 1:19 pm I did this in my new home. I have 3 bedrooms and the theatre room as a mutli head set up (running off the same outdoor unit). I then have a large unit in the family/meals/kitchen area, and a seperate unit in the master bedroom. The cost of a 4 port multihead with 4 heads in each room was about $1000 more than buying and installing 4 seperate split systems, as the units are more expensive. You do however avoid 4 units being installed on the outside wall. From memory the cost was pretty similar to a zoned ducted unit. I avoided this type of unit, because as you say, you get more flexibility with the multi head. Not only can each room be set at a different temperature, speed, etc, but as the bedroom units are used far less than the living area unit it means i don't have to power up a large unit every time I want cooling (as I would with the ducted unit). Blog is now up - http://www.jbdave.blogspot.com/ Re: Multi-head split system 8Apr 07, 2010 1:49 pm Fujitsu. I had Fuji's and Daikin units in my old home and the Fuji's were the better unit (never broke down, worked better). I have seen too many problems with other brands such as LG, and it seems a few people I know with Daikin units have all had Daikin in at one stage or another to fix them. Blog is now up - http://www.jbdave.blogspot.com/ Re: Multi-head split system 9Apr 07, 2010 2:08 pm I have heard that myself, but with all brand (but Actron) as they are no longer made in Japan. Using cheap thin copper and lower quality componenets in China, I guess you just make sure you have a long warranty! Good to concider Fujitsu, Thanks! I'll look into different shower heads and ask the plumber about some engineering and see what he says. Thanks 2 9551 If you can calculate the reasonable charged head from let's say 100mm below the gutter to the top of where the vertical riser's horizontal discharge pipe will be, that… 11 17525 Move your linen into laundry and access laundry from your present linen space 1 8002 |