Results 1 to 11 of 11
  1. #1
    Join Date
    May 2005
    Posts
    1,349

    hussman 4 glass door fzr, two liquid lines.....

    liquid line comes into box, goes through a 163 filter then through a pump down solenoid...then it tees off one line hugs the suction line then into the tev...the second liquid line bypasses the tev and it goes into the line coming out of the tev between the distribution tube and tev...


    whats that?
    Let's give nukes a chance.

  2. #2
    Join Date
    Feb 2008
    Location
    California
    Posts
    2,066
    That line bypassing the TEV should have a check valve in it. Because it's the return line for gas defrost.

  3. #3
    Join Date
    Dec 2009
    Location
    B.C.
    Posts
    26
    The part located between the TXV and the distributer is an Auxiliary Side Connecter (ASC). This may be a system that uses either a method of capacity control, like 'Bypass to Evaporator', or uses a method of defrost, like hot gas defrost.

  4. #4
    Join Date
    May 2005
    Posts
    1,349
    i can see the electric heater in the drain area...how does it work cause theres only one solenoid..anyone have a cartoon of this system?

    also when this systems goes into defrost, it pumps down and compressor shuts off.
    Let's give nukes a chance.

  5. #5
    Join Date
    Jul 2011
    Location
    Ontario, Canada
    Posts
    25
    Quote Originally Posted by primmers View Post
    i can see the electric heater in the drain area...how does it work cause theres only one solenoid..anyone have a cartoon of this system?

    also when this systems goes into defrost, it pumps down and compressor shuts off.
    If system is pumping down on defrost then don't think it is hot gas defrost. Case must have had heaters added to change to electric defrost.


    Sent from my iPad using Tapatalk HD

  6. #6
    Join Date
    Mar 2013
    Posts
    36
    Klixons clamped to return bends will operate relays in kick plate to turn on door anti sweats when case is in refrigeration, and turn fans off, supplemental heater on when defrost is started , if its hot gas. Might be a gas defrost case converted to electric. Look for contactor controlled by #3 terminal of clock, or if its just a single case #3 might go right to heaters. Wiring will probably be field modified, defrost power in case pan will also power a relay in kick plate to turn off fans for defrost, won't turn back on till fan delay klixon on return bend makes.

  7. #7
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,567
    Quote Originally Posted by primmers View Post
    i can see the electric heater in the drain area...how does it work cause theres only one solenoid..anyone have a cartoon of this system?

    also when this systems goes into defrost, it pumps down and compressor shuts off.
    It is probably a case that was originally piped for gas defrost that was subsequently used on an electric defrost system.

    Think defrost on a heat pump and you'll get the general concept.

  8. #8
    Join Date
    May 2005
    Posts
    1,349
    thanks guys..
    Let's give nukes a chance.

  9. #9
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    3,163
    does this have 2 thermostats ?

    Maybe theres one hidden under another sheet metal cover along with another solenoid for the hot gas defrost ?

    Maybe someone has removed some things and frankensteined it ..... we love to do that ya know

  10. #10
    Join Date
    Jan 2010
    Location
    Vancouver Island
    Posts
    339
    Quote Originally Posted by primmers View Post
    i can see the electric heater in the drain area...how does it work cause theres only one solenoid..anyone have a cartoon of this system?

    also when this systems goes into defrost, it pumps down and compressor shuts off.
    The heater around the drain is your drain pan heater. This is a low wattage heater to keep ice out of the drain. If it has been converted to electric defrost, you are going to have at a minimum one additional heater, possibly more, to defrost the coil.

  11. #11
    Join Date
    May 2005
    Posts
    1,349
    this case has been modified..but its running now...
    Let's give nukes a chance.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event