Do aircon units use more juice when on warm than cold

cyprustimes


Joined: 22/10/2010
Posts: 867

Message Posted:
09/02/2011 18:50

Can someone tell me.

scruff


Joined: 15/07/2008
Posts: 1070

Message Posted:
09/02/2011 19:49

The opposite, less juice than on cooling, assuming not too cold or minus zero outside.

elkiton



Joined: 15/03/2009
Posts: 514

Message Posted:
09/02/2011 19:53

Ok, will try to help, not in the trade but have some engineering knowledge..... Exact costs depends on the ratings of your aircon and if you have the inverter or heat-pump type. The basic principle of a good aircon it to move heat in one direction or the other depending on heating or cooling mode. As the principle is the same in either direction, ie a compressor/evaporator and a couple of fans, unless there is a big difference in the ratings of heat or cooling performance, they should cost about the same.

If you look at the data on this site, there is a worked example, showing about 1% difference in favour of cooling as it has a lower KW rating.

http://www.temperzone.com.au/split-system-air-conditioner-7kw.aspx

Any use?



TonyE