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Water Source Heat Pumps

Discussion in 'Residential' started by Zman, Mar 28, 2017.

  1. Zman

    Zman Hanging by a Thread

    Messages:
    1,010
    Location:
    The "I know a Guy" State
    Starting to work on some WSHP.Trying to understand their operation.Will my Pressures be the same in Heat mode as they would be in Cooling,or close?I don't see why not, I'm not dealing with outside Ambient,and my Condenser is a Water Coil within the Unit.The ones I'm seeing are old Tranes,R22,kinda suck to work on,no room to get two hands in there.Was told they don't blow very hot in Heat mode to begin with.
     
  2. 22blood

    22blood red wire nuts only

    Messages:
    1,756
    Hopefully the tower is cared for, chemically and water heated in the winter. A big repeative monster is having to flush all the black shit out of the water coil when restricted. Youll know when you have a freeze up in heat or highbhead in cool.
    Probably done 100 of those. This is whenbthe tower is not cared for
     
  3. Ballvalve79

    Ballvalve79 It's only fire what could go wrong

    Messages:
    236
    Location:
    Northwest PA
    Old Trane heat pumps are a joy aren't they lol. What kind do ya got. The in wall tall and skinny like a locker style or a free standing thing. Is it on a well field or tower or what. Need some more information.
     
  4. flange

    flange Act like you care and do SOMETHING!!

    Messages:
    12,861
    Location:
    IMT--in my truck
    In cooling mode, they take take heat out of the airstream and transfer it to the water loop.

    In heating mode, they take heat out of the water loop, and transfer it to the airstream.

    The fan is there to help move the air through the ductwork.
     
    Rather B Riding and sline-dawg like this.
  5. Rather B Riding

    Rather B Riding Behind bars

    Messages:
    606
    I'll give you one piece of advice. Water in/ water out 8-14 degrees rise or drop(cool Heat). Air temp 14+ delta T. It's good move on to the next one.
     
  6. Zman

    Zman Hanging by a Thread

    Messages:
    1,010
    Location:
    The "I know a Guy" State
    The ones I'm seeing are free standing,on floor,short maybe 4 or 5 ft. Long x 2 or 3 high.My Boss told me to work on them extensively,we cut the water lines and drag them back to The shop.Was told if we overcharge them,they can make a mess.When reinstalling,with add unions.One I had,no Heat,had a restriction,bad TX.Its getting ripped out and brought to the shop.The Guys I work with are very smart,teaching me new things I never work on before,just trying to stay ahead of the curb.
     
    Daryl_Dixon likes this.
  7. Zman

    Zman Hanging by a Thread

    Messages:
    1,010
    Location:
    The "I know a Guy" State
    And I thought the discharge bypassed the water loop by way of the reversing valve,directly to the evap coil during Heat mode.I could be wrong,hard to get a Good look lying on the floor,crunched next to a bookcase.I was told it's Critical to way your charge.It was the first one I ever worked on.Its beats the ones in the ceiling,that do has ducts,look like Air Handlers,need a 10 foot ladder to work on.Id rather lay down on the job!
     
  8. Daryl_Dixon

    Daryl_Dixon New Member

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    3,780
    What's an evap coil? :D
     
  9. Rather B Riding

    Rather B Riding Behind bars

    Messages:
    606
    I have a few water plants that all have WSHP. Never saw a 15 ton water furnace till I got this account.
     
  10. NZ All Blacks Fan

    NZ All Blacks Fan Just Another swinging Dick

    Messages:
    9,399
    Location:
    West Coast - Canada
    Charge is critical - MUST weigh in
    heat output is ok for a heat pump.
    if the water loop is maintained properly wshps work just fine
    they are a bitch to work on regardless the brand
    fortunately most are reliable if the water loop is maintained
     
  11. Joe5

    Joe5 New Member

    Messages:
    4
    Location:
    Oregon
    Deal with a lot of them in condos. Suck to work on. Usually in a closet or laundry room above a drop ceiling with very limited room to work. Been dealing with 2006-2008 tranes with air coil refrigerant leaks.
     
  12. frozensolid

    frozensolid Psychologist's Dream

    Messages:
    12,284
    Location:
    Earth
    To simplify what flange said. In cool the water is your condenser...in heat the water is your evaporator. Depending on water and air temp the pressures will not be exactly the same.
     
  13. Julius Fletcher

    Julius Fletcher New Member

    Messages:
    2
    I agree with the discussion, water is a good source.
     
  14. Daryl_Dixon

    Daryl_Dixon New Member

    Messages:
    3,780
    Julius, it's been really good knowing you
     
  15. chucko615

    chucko615 Banned camp counselor

    Messages:
    14,487
    Location:
    Michigan
    Hi Julius, there is plenty of water an bant camp. Enjoy your stay