Aircon air vent temperature.

[Marvin]

Has anyone got any figures for what the temperature should be just inside the centre air vents with the aircon on and on max. chill. I measured mine with the car stationary, with the engine revs at about 1500-1800 rpm and with the fan speed on, say, 2 and a digital thermometer with the probe about an inch or so inside the vent.
The minimum temperature reached was ~3.9C with the outside temp. 22c but of course the accuracy of the thermometer is only +/- 1c.
I sometimes imagine that the system was much colder late last summer (took delivery in late July 2009) but I have only got the Climatic aircon system not the one where you can set you temp. for each side of the cabin.
Obviously in the UK we don't suffer extremes of temp. not usually anyway but can get temps in the middle 30s sometimes (mercifully not for long).

 

[ChicityGTI]

Brain....Does....Not....Compute....In....Celcius....Calculator....Too....Far....Away.......

 

[Marvin]

Brain....Does....Not....Compute....In....Celcius....Calculator....Too....Far....Away.......

Airvent temp: 39F. Outside temperature 72F. We were forced to use Celcius by joining the ruddy the European Common Market and our weather forecasting service is all in degrees C. Anyway as a scientist I had to use both and be able to convert from one to the other.

 

[McSwine]

F=9/5 x C + 32

(the only reason I know this is because my 5th grader is doing it in math)

I'm also interested in responses since it gets so gawdawful hot and humid here.

 

[edgary]

It's hard to compare. I may be wrong but I remember that altitude and humidity also play a big role in the air conditioning temperature.

 

[Keithuk]

We test aircon at work and I think we use an inside vent temp of 5C. For those of you that can't calculate thats 41F.

 

[Marvin]

We test aircon at work and I think we use an inside vent temp of 5C. For those of you that can't calculate thats 41F.

Well don't forget, that is the temperature inside the air vent and that the cold air has got to blend with high cabin temps. Anyway, I have made a faux pas, unforgiveable I suppose in someone with a scientific background of over 50 yrs. I forgot to calibrate my instruments!!!

Today I took my digital thermometer's probe and plunged the first 2 inches or so into crushed melting ice and to my surprise found that the stable state temperature read 2.3c and so the error here is much higher than I thought. I also remembered that I had one or two Mercury in glass 0-100c thermometers and put those alongside the probe and they read, near as damn it 0c. It was seem that my aircon vent temp. is lower than I first thought.