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Old York condensing unit

Discussion in 'Commercial' started by Chuck, Sep 27, 2017.

  1. Chuck

    Chuck SSP

    Messages:
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    Location:
    LAX
    Probably 30-40 ton split system.

    What are the timer/delay things? Anyone have any documentation or explanation? They have a little motor that turns but the motors seem bad. I'm just guessing since all I have to do is turn them and the compressors start.

    No diagram, unreadable model number so not sure how to test them to see if they're bad, or if they're not getting the right input

    20170927_142135.jpg
     
  2. pecmsg

    pecmsg Junior my ASS

    Messages:
    21,192
    Location:
    Eastern LI
    W T F do they call those.....

    P T O's

    I've got paper work at home.
     
  3. pintofstout

    pintofstout New Member

    Messages:
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    Location:
    Olean, NY
    Oh i hate those. ALWAYS on systems with no diagrams.


    Sent from my iPhone using Tapatalk
     
  4. Catpower

    Catpower The Crowd Pleaser

    Messages:
    22,334
    Location:
    in the Cabana
    Look at the back side it is plastic and you can see if the motor is running

    Just take it out of the system, it is either a compressor time delay or for a part wound start for a 3 ph motor, either way the unit will run with out it

    Carriers used to have them on all of their units

    Anyway it has a 1985 date code, they need a new unit:)
     
  5. flange

    flange Act like you care and do SOMETHING!!

    Messages:
    12,871
    Location:
    IMT--in my truck
    they are anti recycle timers. they prevent compressors from banging on and off and killing the windings. if failed you can use a typical adjustable plug in timer and base, or a thermostat with the logic built in and junk it.
     
  6. Chuck

    Chuck SSP

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    Problem is we have common, NO and NC and latching relays involved. So just jumpering it out won't work. Already has an electronic stat with anti short cycle
     
  7. flange

    flange Act like you care and do SOMETHING!!

    Messages:
    12,871
    Location:
    IMT--in my truck
    oh wait, isn't the -132 anti recycle and the -142 adds oil failure and the lockout relay
     
  8. crackertech

    crackertech assholiness *

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    I think your right
     
  9. flange

    flange Act like you care and do SOMETHING!!

    Messages:
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    Location:
    IMT--in my truck
  10. Chuck

    Chuck SSP

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  11. heavyevans

    heavyevans FNG

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    The 025-18477 is a York part number. I didn't find much on the net. Like Rick said there is a sight glass on the back of the motor.
     
  12. Chuck

    Chuck SSP

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    Yes the motor runs, however it recieves power through one set of contacts and the contacts were not closing.

    I have a new one coming, supposed to be a direct replacement.
     
  13. Zman

    Zman Hanging by a Thread

    Messages:
    1,017
    Location:
    The "I know a Guy" State
    Had one recently on Carrier Pump Down system. This Carlyle had a separate Oil Safety Control. The motor spun constantly,i assumed that was normal. It was for anti short cycle only.
     
  14. otto

    otto Bakery Chef

    Messages:
    19,866
    Location:
    in a van down by the river
    I have some literature on this type of timer used in an old W1LC that I service.
    Here's the IOM. I have pictures of the wiring diagram but have to search for them.
     

    Attached Files:

    Chuck likes this.
  15. freeworld

    freeworld Freon Jockey

    Messages:
    174
    Location:
    Great Northwest
    S1-02518477701
    This shows as the replacement part #.

    J-Mart has it as G32-637
     
    Chuck likes this.
  16. freeworld

    freeworld Freon Jockey

    Messages:
    174
    Location:
    Great Northwest
    On the older York unitary equipment, i.e. RTU's Resi and LC Splits, the old style York part number format has changed.
    So your part number, 025-18477-001 changed to S1-02518477001.
    And superseded to S1-02518477701.
     
    Chuck likes this.
  17. otto

    otto Bakery Chef

    Messages:
    19,866
    Location:
    in a van down by the river
    Here's some of the wiring diagram if that helps
    IMG_20160330_151902892.jpg
     
    Chuck and freeworld like this.
  18. Chuck

    Chuck SSP

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    Thanks Otto, much appreciated.
     
    otto likes this.
  19. Chuck

    Chuck SSP

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    It works! 20170929_143707.jpg
     
    doc havoc, knave and freeworld like this.