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  1. #1
    Join Date
    Sep 2011
    Posts
    85

    Appion g5 twin, what can it handle?

    I just got a g5 and i was recovering r22 at a considerable rate. Anyway, of course the rate slowed down and i wanted to speed it back up so i ran the cOmpressor to build up some liquid. I did that (shut off the comp), then restarted the g5. It started shaking violently, i thought i might be killing it. Shut it off, closed the input, relieved the pressure restarted and everything was fine and finished recovering.

    I thought the g5 could handle liquid. What did i do wrong?

  2. #2
    Join Date
    Mar 2009
    Location
    Mid-Mo
    Posts
    3,596
    You can but you have to meter it either with your gauges or the valve on the unit. Sounds like you slugged it with a huge amount of liquid This is going to sound pretty lame, but look at the owners manual....it has all the tricks of cooling the tank down, push/pull, etc. It tells you everything but packing your cylinder with ice.

  3. #3
    Join Date
    Jul 2005
    Posts
    5,576
    Quote Originally Posted by wdshea View Post
    I just got a g5 and i was recovering r22 at a considerable rate. Anyway, of course the rate slowed down and i wanted to speed it back up so i ran the cOmpressor to build up some liquid. I did that (shut off the comp), then restarted the g5. It started shaking violently, i thought i might be killing it. Shut it off, closed the input, relieved the pressure restarted and everything was fine and finished recovering.

    I thought the g5 could handle liquid. What did i do wrong?
    Your recovery tank pressure was too high. Cool the tank while recovering. Running water over it is usually sufficient.

  4. #4
    Join Date
    Sep 2011
    Posts
    85
    My tank pressure was high, can you explain the physics to me? (i did read the manual) but i guess i dont understand the imPortance of a cool tank. I thought it was just to increase the speed, i didnt know it could affect the machine.

  5. #5
    Join Date
    Jul 2005
    Posts
    5,576
    Quote Originally Posted by wdshea View Post
    My tank pressure was high, can you explain the physics to me? (i did read the manual) but i guess i dont understand the imPortance of a cool tank. I thought it was just to increase the speed, i didnt know it could affect the machine.
    The pump has to do more work against the higher pressure differential. The motor only has so much hp. When the load exceeds the motor's capability it bogs down and can even stall. Hopefully it'll trip out on a safety before it's allowed to self destruct.

  6. #6
    Join Date
    Sep 2011
    Posts
    85
    It didnt trip, i **** it off pretty quick. That makes sense about the work against the tank Pressure. Did i damage the machine?

  7. #7
    Join Date
    Feb 2012
    Location
    Toronto Canada
    Posts
    1,090
    Did you watch the youtube video?

  8. #8
    Join Date
    Sep 2011
    Posts
    85
    I watched a youtube vid, didnt tell me much. Could you give me a link?

  9. #9
    Join Date
    Mar 2007
    Posts
    3,108
    Sounds like you slugged the compressor. You're probably lucky it still works. I don't think the tank pressure had anything to do with it. That would have just made the thing trip on high pressure.
    "There is no greater inequality than the equal treatment of unequals."

    -Thomas Jefferson

  10. #10
    Join Date
    Sep 2011
    Posts
    85
    I dont understand... It says it can Pump liquid

  11. #11
    Join Date
    Aug 2006
    Location
    Columbus Ohio
    Posts
    2,046
    Quote Originally Posted by wdshea View Post
    I dont understand... It says it can Pump liquid
    It can, for about 5sec. Then it will lock up, I have done it.

    Don't believe everything you read about manufacturers claims.
    UA LU189

    10mm, because it's better than .45acp

  12. #12
    Join Date
    Jul 2005
    Posts
    5,576
    Quote Originally Posted by wdshea View Post
    I dont understand... It says it can Pump liquid
    It can pump liquid. It was the high pressure that strained it. I pumped 50 lb of straight liquid, valves wide open, into a chiller the other day with my G5 twin. It never even grunted.

  13. #13
    Join Date
    Jul 2007
    Location
    Chicagoland
    Posts
    479
    How the heck do people not know these things pump liquid?! If I recovered only gas it would take half a day to empty an average system.

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