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  1. #1
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,894

    Compressor performance calc

    New customer!! Got a copeland cr18kq-tf5-980wb on a walk-in running r-22. Suction 62psi head is 310. Amp draw seems low at only 3.5. Suction line is warm. I didn't even measure it. Won't pump down either. Can someone run this through the calc. I don't have the program anymore. Thanks

  2. #2
    Join Date
    May 2003
    Location
    Utah
    Posts
    735
    You can go to Emerson's site and download their programs.

  3. #3
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    10,428
    Copeland's Compressor Performance Calculator says with a 230V supply at those pressures on R22, that compressor should draw 5.0 amps.

  4. #4
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,894
    Quote Originally Posted by icemeister View Post
    Copeland's Compressor Performance Calculator says with a 230V supply at those pressures on R22, that compressor should draw 5.0 amps.
    Thanks Ice! I ended up throwing a new compressor in it yesterday. Suction ended up slightly lower, Head slightly higher, amp draw now 4.6. SH was down too. Box is pulling down to 35 and cycling off. Amazing!! I hope it works now. The previous company was fired over this thing.

  5. #5
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,894
    Quote Originally Posted by bunny View Post
    You can go to Emerson's site and download their programs.
    Do you have a download link? I wasn't able to find it on thier site.
    Thanks

  6. #6
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    10,428
    Quote Originally Posted by KB Cool View Post
    Do you have a download link? I wasn't able to find it on thier site.
    Thanks
    This link is for Copeland's Product Selection Software, which is the newer version of the now obsolete, Compressor Performance Calculator...which I liked a lot better.


    It's free for download, but you'll need to complete an application form and submit it via email to receive authorization for the download. We have found that their system won't accept emails from Gmail and some others, so use Outlook Express and you should be OK.

    If you don't have Outlook, call them. I had to send a copy of the completed form and got the authorization shortly after. They may have corrected this bottleneck, but if not, that's what I did...PITA that is was.

  7. #7
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,894
    Ice, the link appears to be dead. Can you guys upload the program to the educational forum. Or does copeland not want you to?

  8. #8
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    10,428
    Quote Originally Posted by KB Cool View Post
    Ice, the link appears to be dead. Can you guys upload the program to the educational forum. Or does copeland not want you to?
    Log in at the Emerson website and try the link.

  9. #9
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,894
    Quote Originally Posted by icemeister View Post
    Log in at the Emerson website and try the link.
    Got it! I had to re-register my username. Waiting on an email that contains an activation code to launch the software I guess? .PIA!!! Took a long time to install too!!
    Thanks again!


    Nevermind, i opened the program a second time and it seems to be working even without the activation code.

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