Results 1 to 5 of 5
  1. 01-06-2013, 06:52 AM #1
    Absorber1981
    Absorber1981 is offline New Guest
    Join Date
    Jan 2013
    Posts
    1
    Post Likes

    Carrier 30RQ EXV problem

    Hi All. I have 30RQ120 Chiller with AquaSnap Control System.
    In cooling mode, the unit is working fine.
    In the heat pump:
    1. The unit starts up and gets into position EXV 27% and off for high pressure
    EXV on the sensor does not respond - only 27%
    I heated the sensor - no reaction - 27%
    and off for high pressure
    In what could be the reason?
    Thanks in advance for your help
    Reply With Quote Reply With Quote
  2. 01-06-2013, 04:55 PM #2
    steve wright
    steve wright is offline Professional Member
    Join Date
    Feb 2007
    Location
    Georgia
    Posts
    205
    Post Likes
    Removed sorry no *
    Last edited by steve wright; 01-06-2013 at 05:13 PM.
    Reply With Quote Reply With Quote
  3. 01-06-2013, 06:09 PM #3
    Dallas Duster
    Dallas Duster is offline Professional Member*
    Join Date
    Jan 2008
    Location
    East of big city prices.
    Posts
    3,838
    Post Likes
    With that much info it is hard to troubleshoot it from the USA.
    Reply With Quote Reply With Quote
  4. 01-15-2013, 06:40 PM #4
    rscamaro's Avatar
    rscamaro
    rscamaro is offline Professional Member*
    Join Date
    Jul 2003
    Location
    Orange County N.Y.
    Posts
    1,171
    Post Likes
    Quote Originally Posted by Absorber1981 View Post
    Hi All. I have 30RQ120 Chiller with AquaSnap Control System.
    In cooling mode, the unit is working fine.
    In the heat pump:
    1. The unit starts up and gets into position EXV 27% and off for high pressure
    EXV on the sensor does not respond - only 27%
    I heated the sensor - no reaction - 27%
    and off for high pressure
    In what could be the reason?
    Thanks in advance for your help
    Generally if you are only opening 27% and the unit is shutting off by high pressure safety then you have a pressure problem. Overcharge or no water flow.

    ...Ron
    Roof Rat
    Reply With Quote Reply With Quote
  5. 01-20-2013, 12:38 AM #5
    manny238's Avatar
    manny238
    manny238 is offline Professional Member*
    Join Date
    Oct 2005
    Location
    USA
    Posts
    514
    Post Likes
    You should be able to force the EXV open If you know how to put the system into test mode.
    RTFM!!!
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules
Contracting Business

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.
HPAC Engineering