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  1. #1
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,976

    Walk-in Deer Cooler

    My buddy has a 8x8 walk in that he built and i hooked up some little cooler for him. It has a new compressor with receiver. i used r-401a(mp29) for refrigerant.

    There are no controls on it. Here's some info i have on this thing.

    Bohn evaporator;
    model; c-0300c serial; dra 5404
    sporlan txv; R-12, ff-1/2-c

    Tecumseh condenser;
    mod; RE4440ab
    bm; 2c309-9
    ser; 9l21244874
    ref; r-12
    evap range; +20* - +55*
    compressor; ae234-as-668-a2
    aea4440axa

    i believe the valve is wrong for the unit. i cannot tell what btu this thing is.

    heres my readings;
    clear sightglass
    sh; 40, sc; 11
    slt; 81* llt; 106*
    37.6psi / 185psi

    ra; 65* sa; 55*
    entering condenser air; 88*

    any ideal what valve i need for it?

    am i on the right track?

  2. #2
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,888
    A little 1/3 hp compressor on 8X8 WALK iN? Is that big enough?

  3. #3
    Join Date
    Apr 2012
    Location
    winnipeg
    Posts
    1,330
    something wrong here.... the 1/3 may well be fine if the door opens seldom..... struggling with the numbers right now.. gonna have another crown and coke and I may see the light
    it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair

  4. #4
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,976
    i have no idea. it's a little room my friend built to hang his deer in while its still hot out. its very well insulated and sealed. we got this thing from some fruit stand he worked at. i dont know much about refrigeration

  5. #5
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,976
    also i dont know if this helps but the condenser sits on top of the box. the lines are about 6' total and 3/8" suction 1/4" liquid.

    i pulled a slow deep vacuum on everything and installed a 052 drier with a sightglass.

  6. #6
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,888
    You got a 1/2 hp valve! Wait for Ice meister to respond!!!

  7. #7
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,976
    hmm....that means it should be hunting not starving.

    because the valve is r-12 and im using r-401a do i need to change the valve?

  8. #8
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,888
    I'd wait until somebody can size your evap up. Icemeister usually's the one to tell you if your sizing is ok. That's why i mentioned him above. Or call the parts house and ask!!

  9. #9
    Join Date
    Jun 2004
    Posts
    854
    Is that a 2 fan evaporator?
    If it is I'm guessing its rated around 8-9k btu

    U will need at least a 1 horse power condensing unit

  10. #10
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,976
    1 fan with a 1/40hp motor.

    i would say the dimensions are 24" wide 20" tall and 10" deep

  11. #11
    Join Date
    Jun 2004
    Posts
    854
    R401a is Mp39 and its a replacement for R12

  12. #12
    Join Date
    Jun 2004
    Posts
    854
    What temp are you trying to maintain

  13. #13
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,976
    Quote Originally Posted by shaka View Post
    R401a is Mp39 and its a replacement for R12
    i know this. just didnt know how the valve would respond. i havent compared p/t charts. are they about the same?

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