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Can i check the outside temperature by putting the thermometer in the airvent

Blade on Fri September 11, 2009 4:35 AM User is offline

HI

I know you test the aircon temperature by putting the thermometer in the centre vent,Can you test the outside air the same way obvioulsy without the aircon switched on.

Thanks

Voyager97 on Fri September 11, 2009 9:52 AM User is offlineView users profile

No.

The outside (Ambient) temp should be taken about 2 inches in front of the condenser, so that it is the same as the temp affecting the condenser.

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Vic @ Pennine AutoChill

iceman2555 on Fri September 11, 2009 10:14 AM User is offlineView users profile

We normally measure ambient air temps by measuring temps app 12"/1ft in front the condesner.

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Thomas Jefferson

TRB on Fri September 11, 2009 10:51 AM User is offlineView users profile

Quote
Originally posted by: iceman2555
We normally measure ambient air temps by measuring temps app 12"/1ft in front the condesner.

I go to weather.com and type in my zip code!



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NickD on Fri September 11, 2009 11:17 AM User is offline

Quote
We normally measure ambient air temps by measuring temps app 12"/1ft in front the condesner.

If I were to do that, would have to drill a hole in the grille on some vehicles, or remove the grille.

graeme on Sat September 12, 2009 8:29 AM User is offline

Depends on what temperature you are after, if you are after the outside temp, then measuring the vent temps is problematical.

.
As mentioned in another thread, The plenum and ducting inside the car can be considerably hotter than ambient with high sunlight. Depending on the proximity of the evaporator to the engine bay, the evaporator can also get warm(when the air isnt on) and give higher readings.

So as others have said, somewhere tucked behind the front bumper, out of direct sunlight and direct line of sight with the road surface which can give spurious high readings due to the amount of IR transmitted.

iceman2555 on Sat September 12, 2009 10:44 PM User is offlineView users profile

Excuse me...I should have stated in front of the grill...not condenser. My mistake......

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Thomas Jefferson

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