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Old 09-28-2012, 08:59 PM   #1
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AC System with White Rodgers with Comfort Alert Technology


What is the proper way to pump down?

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Old 09-29-2012, 04:56 AM   #2
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AC System with White Rodgers with Comfort Alert Technology


Scroll compressor isn't suppose to be drawn lower then 20PSIG. But if your going to go to 0, just hold the contactor in.

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Old 09-29-2012, 07:10 AM   #3
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AC System with White Rodgers with Comfort Alert Technology


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Scroll compressor isn't suppose to be drawn lower then 20PSIG. But if your going to go to 0, just hold the contactor in.
Condenser with this controller board doesn't have contactor or test bottom to pumpdown. I think I need to jumper LPC to be able to pumpdown to 20PSIG.
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Old 09-29-2012, 08:33 AM   #4
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AC System with White Rodgers with Comfort Alert Technology


The ones I'm use to use a contactor. Of course, I mostly see them on AAONs with digitals scrolls.
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