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Trane CRHR500 handhole gaskets

Discussion in 'Commercial' started by otto, Nov 7, 2017.

  1. otto

    otto Bakery Chef

    Messages:
    19,866
    Location:
    in a van down by the river
    Got a customer that the handhole gaskets are weeping a bit of oil. He wants the gaskets replaced. Of course I will also do an oil change, all 3.25 gallons of it. My questions: Do you just replace the gasket as normal? Anything I should be prepped for in doing this? Any other things I should do at the same time? Never took one of these apart before.
    Also it has two unloaders. R22 water cooled condensers. What would you set the unloaders at? It just gives me a brain fart. It is not a pump down system but there is a LLSV to prevent migration. Do the unloader settings overlap? It seems like unloaded is OK, then one loads up but when the third loads up it unloads the second one. I am just a bit confused. I know how they work, just not sure where to set them. They're operated from separate LP controls.
     
  2. HMD

    HMD does it matter?

    Messages:
    93,375
    Location:
    here
    i don't have anything electronic. most likely on paper, in the carage.
    model 'R'?
     
  3. HMD

    HMD does it matter?

    Messages:
    93,375
    Location:
    here
    jah, 'r'.
    you got manual?
    i just downloaded it
     
  4. HMD

    HMD does it matter?

    Messages:
    93,375
    Location:
    here
    out of adjustment?
    you'll want to set it up, to attempt to minimize cycling, and rapid operation.
    dx, i assume?
     
  5. otto

    otto Bakery Chef

    Messages:
    19,866
    Location:
    in a van down by the river
    Yes, it's DX. Last time I was there they didn't have much of a load. 4 pip system in a high rise. Handles the load OK when it needs to.
    I'll look more at them in the spring. Maybe I just need to torque up the existing gaskets but, they'll get new ones anyway since they're already ordered and it's a good day of work indoors on a cold day.
     
  6. flange

    flange Act like you care and do SOMETHING!!

    Messages:
    12,870
    Location:
    IMT--in my truck
    wipe out sump where possible to remove residual crap if you are opening and changing oil.
     
    otto likes this.
  7. HMD

    HMD does it matter?

    Messages:
    93,375
    Location:
    here
    when you have the sump open, you can manipulate and then remove, the oil strainer for inspection.
    and i think there's some magnets somewhere in side.
    + carefully leak check the compressor electric terminals. those like to leak
     
    otto likes this.