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  1. #1
    Join Date
    Sep 2019
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    Confused condenser on the balcony

    hi,
    someone already installed condensers, heat pump, on the balcony of buildings. i'm concerned by the condensation water in winter (canada). When the building is high-rise (12 floors for this project), I fear that will create ice, stalagmites, along the facade through each balcony to the ground floor. i feel concern about that
    I need your comments, please.

  2. #2
    Join Date
    Aug 2002
    Location
    Southold, NY
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    Legitimate concern.

  3. #3
    Join Date
    Jul 2010
    Location
    nebraska
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    2,809
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    Ice features,charge extra.

  4. #4
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    Sep 2019
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    Thread Starter

    Confused condenser on the balcony

    the owner of the building wants to save money by taking advantage the compressor heat pump mode in winter. i always installed the condenser unit in mode cooling only exactly to avoid ice on the balconies but in this case i need someone need someone who has already lived this experience and can tell me if it is a viable solution
    thanks,

  5. #5
    Join Date
    Aug 2002
    Location
    Southold, NY
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    Quote Originally Posted by apollo13 View Post
    the owner of the building wants to save money by taking advantage the compressor heat pump mode in winter. i always installed the condenser unit in mode cooling only exactly to avoid ice on the balconies but in this case i need someone need someone who has already lived this experience and can tell me if it is a viable solution
    thanks,
    I don't understand?

    YES a heat pump is going to frost / freeze over and need defrost and YES this will create ice. Control the ice or deal with the hazard(s). Shut the heat pump off when extended periods of below freezing temps and use the back up heat.

  6. #6
    Join Date
    Jan 2010
    Location
    Sea to Sky
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    I am surprised this was even considered in a high rise building. Most of the ones around me won't allow installs like that due to possible building envelope issues from penetrations from the lineset not being sealed correctly.



    Sent from my SM-G965W using Tapatalk

  7. #7
    Join Date
    Sep 2019
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    Thread Starter
    I think exactly the same thing but the mechanical engineer of the project is not worried about this

  8. #8
    Join Date
    Aug 2002
    Location
    Southold, NY
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    Then I hope he has a good insurance policy

  9. #9
    Join Date
    Oct 2014
    Location
    Saint Pail, Minnesota
    Posts
    705
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    Put some drain pans in with heaters!

  10. #10
    Join Date
    Apr 2003
    Location
    Maple Grove, MN
    Posts
    3,229
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    Quote Originally Posted by apollo13 View Post
    the owner of the building wants to save money by taking advantage the compressor heat pump mode in winter. i always installed the condenser unit in mode cooling only exactly to avoid ice on the balconies but in this case i need someone need someone who has already lived this experience and can tell me if it is a viable solution
    thanks,
    Will there be some kind of back up heat with a controller that automatically switches between the heat pump and the back up heat based on outdoor temperature? If so, then everything might be OK.

    Most heat pumps aren't designed to run when it's below freezing outside anyways, unless it's a really expensive kind such as a Carrier Greenspeed.
    If at First You Don't Succeed, Skydiving Is Not for You.

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