View Full Version : pump down
07-16-2005, 07:02 PM
how do you pump down a system cooler ect.
07-16-2005, 07:07 PM
need more info what are we working on
07-16-2005, 07:59 PM
how is a pump down performed on a walk in cooler or any thing that has a receiver.
07-16-2005, 08:04 PM
first install gauges then front seat liquid line or king valve ,then watch suction pressure until it drops till zero . this sometimes requires bypassing the low press. switch but after it reaches zero you might want to front seat the suction service valve
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