Sabado, Mayo 23, 2015

Hunting Piston?

I just want to verify that I am correct on this.

I have a newer R22 system... 13 SEER with a piston. Watching the gauges (digital) I can watch a fluctuation in the pressures and superheat. The temperature of the suction line fluctuates up and down about 1.5 degrees and the suction pressure fluctuates about 6 to 8 psi. There is movement on the high side, but it is less noticeable.

Scoll compressor with piston metering.

This is either an air pocket or mixed refrigerant, isn't it? Assuming the indoor air flow isn't slowing down and speeding up, that is...

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