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Removing compressor w/out losing charge
June 27, 2010
12:41 pm

Thanks Steve, I understand for the most part, I'll get a tech down for the reinstall. Alan.

June 27, 2010
10:17 am
Steve Pooler
Forum Posts: 1127
Member Since:
November 12, 2008
sp_UserOfflineSmall Offline

Hi Allen~

Yes what you are asking can be done but you will need leave the gauges connected when removing the units copper tubing flare connections…Then you will need Flare caps to put back on the inlet & outlets where the copper tubing was connected…Then back the service valve stems all the way back up to the top so that you can remove your gauge hoses and re-install those caps too…Rubber hoses will leak R-22 right thru the hose wall…

When you go to re-install & before you remove the flare caps from the inlet & outlet ports to re-connect the tubing…Run both valve stems all the way back down, connect the tubing, and connect the vacuum pump to the red or lower of the two High side ports (this one has a schrader valve in it) evacuate the line set from there…Then back the stems up to the top again so that you can remove the other gauge caps, attach your hoses, crack the stems down 3-4 cranks, start systems & verify charge…

Hope that helps  Wink


June 27, 2010
9:50 am

Hi, I am going to remove the two units (split cruiseair 12k) to access the compartments under them and replace the now rotted plywood mounting panels and understand from an aquaintence that with a set of gauges, I can capture the charge in the compressors by connecting the gauges and shutting the discharge side valve and when the suction side is at 0 shut the suction valve and have a tech evac the lines when all the wood work is done. I note that there is single point for connection for gauges on the suction side and two on the discharge - so questions (I have no experience other the dumping some freon into the car years ago) is any of this correct and, if so, which port on the discharge side to connect to and do the valves need to be closed before attaching gauges and then reopened to read pressures (I assume so but figure can't hurt to ask). Thanks, Alan.