Climate Control

[Eraj]

Hey guys,

I was having a chat with a buddy and this came up. If you move the temp control dial in a car with no CC to somewhere in the middle, does it actually reduce the time the A/C is engaged, or simply mix the air with warm air? Anyone has an idea?

Thanks

Eraj

[bitcore]

If the temperature of the heat exchanger raises to a certain degree, the compressor will click on to lower it back down again.
If you have the a\c on max, where the air is blowing really hard, the warm air blowing through heats up the heat exchanger (while cooling the air moving past, thus the name heat exchanger [a radiator]), causing your compressor to click on more often. Max AC setting may cause the compressor to lower the heat exchanger's normal cooling temperature even lower, to cool the air further - Max AC :P

So technically, Yah, it does reduce the ammount of time the compressor is on.

All basic CC is, is a thermameter+computer inside the cab, it detects when it needs to blow cold air, or hot air in the cab and does so accordingly to the temperature you want.

[Eraj]

Hey,

Pretty comprehensive and clear. Thanks for the info. Will share with my buddy.

Thanks

Eraj

[dutchbmw]

There is also a valve what cuts off the hot water to the airco/heater unit. When you adjust a low temerature, no cooling (hot engine) water flows through the little 'radiator' in the airco/heater unit. I have a compleet instruction manual (in dutch lol) how to built in an A/C system

[Eraj]

Hi,

Very interesting. By the way, I also noticed that the a/c kicks in when I press the "Recirculation" button on my 94 BMW 320i. The outside temp was about 26c, I set the CC to 24c, and just pressed the button which has like 3 arrows chasing themselves (Like a cat chasing it's own tail) I did NOT press the a/c button. What's up with that???

Thanks

Eraj