R22 Walk in Cooler is warm. Pumping down a system to replace a liquid line solenoid

In this video, I will show how to pump a system down to the receiver via the king valve in order to replace a liquid line solenoid and will go over the R22 Pt chart and saturation temperatures.
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Видео R22 Walk in Cooler is warm. Pumping down a system to replace a liquid line solenoid канала REFRIGERATION KITCHEN TECH