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  1. #1
    Join Date
    Jan 2017
    Location
    Australia
    Age
    32
    Posts
    1
    Rep Power
    0

    Exclamation Cool room unit freezing up



    hi everyone, hope you can help us solve our problem

    Problem air con unit element is freezing up solid ice, over 30deg days only and fine in winter


    specs
    room size L2.1 x W1.2 x H2 meters with 75mm insulated freezer walls , all joins and sealed inside
    air con 1.6kw specs http://www.kelvinator.com.au/Product?model=KWH15CME
    basic controller unit for air con turn on and off 1-4deg
    unit located inside side with door open but no sun hit unit
    used store meat inside

    freezing multiple times today, out side temp 40.7
    air con temp sensor located at element, controls unit
    in middle room at 1deg is 0.5+ and at 4deg is 2+
    takes 3 hours from 4 to 1 and 10min 4 to 1

    tried opening the recirculation vent a little try help defrosting but then take ages cool room
    https://postimg.org/image/pyr6re90t

    https://postimg.org/image/pn9qemskt

    here's our weather

    39.7°C rising
    Dew Point
    6.1°C falling
    Feels Like
    37.2°C
    Relative Humidity
    13%
    Wind
    icon
    WNW 18km/h rising
    Wind Gusts
    28km/h
    Pressure
    1001.1hPa

    cheers



  2. #2
    Join Date
    Oct 2001
    Location
    Nottingham UK
    Posts
    5,733
    Rep Power
    51

    Re: Cool room unit freezing up

    So, let me get this right....you are trying to use a window rattler for a chill room with a required temperature of 1C to 4C and you can't understand why the evaporator is freezing up?

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