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  1. #14
    Join Date
    Jul 2010
    Location
    South Florida
    Posts
    54
    Take a large plastic garbage bag and wrap it around the condenser. I usually let the fan hold it in place and charge the system its quick and easy.

  2. #15
    Join Date
    May 2002
    Location
    evansville indiana
    Posts
    942
    Quote Originally Posted by hands View Post
    They would probably do the same if you were caught with a control panel open and you didn't have your PPE gear on, but that never happens either does it.
    you are correct
    mikeacman

  3. #16
    Join Date
    Apr 2011
    Location
    Coastal Maine
    Posts
    769
    Quote Originally Posted by rcac101 View Post
    Take a large plastic garbage bag and wrap it around the condenser. I usually let the fan hold it in place and charge the system its quick and easy.
    Hard to find a big enough garbage bag for a Rooftop Unit. That trick works until it gets really cold.

  4. #17
    Join Date
    Feb 2007
    Location
    Georgia
    Posts
    162
    .....back in the day with r12 we had heaters(electric) that went on a 30# drum and Robinair (are they still in business) had a charging cylinder that had a heater in it.

    But all that is a little over the top!

  5. #18
    Join Date
    Oct 2012
    Location
    CA
    Posts
    403
    Carefully cycle outdoor fan motor by hand ?

  6. #19
    Join Date
    Oct 2011
    Location
    Chicagoland Area
    Posts
    4,299
    5 gal bucket with hot water. 30 lb jug fits right in there.
    Officially, Down for the count

    YOU HAVE TO GET OFF YOUR ASS TO GET ON YOUR FEET

    It was working when I left...
    Liberalism-Ideas so good they mandate them

  7. #20
    Join Date
    Feb 2007
    Location
    Georgia
    Posts
    162
    He has to weigh the charge in.

    But I will use that cardboard to block the condenser

  8. #21
    Join Date
    Jun 2006
    Location
    midwest
    Posts
    120
    Use your recovery machine and weigh in . Works every time

  9. #22
    Join Date
    May 2002
    Location
    evansville indiana
    Posts
    942
    Quote Originally Posted by gwoner View Post
    Use your recovery machine and weigh in . Works every time
    3 votes for this so far ,,,,it's what I do ,,,,and by the time you dick around with cardboard and bags,fire ,hit water (we had a guy blow a jug up doing this ),having to drag them on/ off the roof ,dispose of it or save it ,,,its just as easy and probably faster to pump it in with your machine ...

  10. #23
    Join Date
    Sep 2006
    Location
    Ohio
    Posts
    441
    Using a recovery machine is a good option, but you should have it connected to your charging hoses and pull a good vacuum on it to remove any moisture first.

  11. #24
    Join Date
    Sep 2012
    Location
    Ottawa, Canada
    Posts
    28
    Wait till the spring or you will end up doing it twice.

  12. #25
    Join Date
    Apr 2011
    Location
    Coastal Maine
    Posts
    769
    Quote Originally Posted by tim79 View Post
    Wait till the spring or you will end up doing it twice.
    Can't always wait till spring. What if the RTU cools a critical area? It is just something we have to deal with north of the Mason Dixon Line.

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