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Rustytool
06-27-2016, 10:31 PM
First time I've really gotten to play with the target superheat feature to my psychrometer.
Seems like the condensers I came across were in direct sunlight today.
Depending on where I put the probe it was up to a 10 degree difference in temperature, and I want to say up to 4 difference in target superheat heat

If the condenser is in direct sunlight should I take the reading in the sun?

The shady side wouldn't be accurate right?
Thanks

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David Goodman
06-27-2016, 10:35 PM
My thought would be that the shady side would be appropriate. The surfaces on the sunny side would be affected by and transfer radiant heat to the temperature sensor. On the shady side, you would be getting a more accurate reading on the actual air temperature flowing into the condenser coil.

Snaple4
06-27-2016, 11:53 PM
Shady side. The air is moving very fast past the coil guard so it isn't heating the air much. The coil guard will radiate heat to your sensor giving you an inaccurate reading.

Rustytool
06-28-2016, 08:12 PM
That's true, never thought of the radiant heat affecting the reading. Good call
My thinking was if the condensers in direct sunlight, the temp should be taken in direct sunlight. I'll have to try the shady side tomorrow if I come across a one in the right conditions
Thanks for the input

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