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  1. Replies
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    You refer to a defrost termination klixon. Is...

    You refer to a defrost termination klixon. Is this what the schematic calls it or you? In most self containers I work on, there is a klixon that shuts the fans off if the coil is above X degrees....
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    1 - Why does the return fan shut off when the...

    1 - Why does the return fan shut off when the supply fan stops?
    2 - What is your accelerate and decelerate parameter set to?
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    Is there an oil equalizing line between the two?...

    Is there an oil equalizing line between the two? Is it plugged?
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    681

    Are they your subs or the buildings?

    Are they your subs or the buildings?
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    I have been taught that in most commercial HVAC...

    I have been taught that in most commercial HVAC applications there is no real need to have a derivative value in the control loop. It seems that that PID is the problem. If you can find these values...
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    Is there a freeze stat on the unit? I have had a...

    Is there a freeze stat on the unit? I have had a few Tranes act this way.
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    Lol. That's a good one.

    Lol. That's a good one.
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    Heritage food services in fort Wayne Indiana

    Heritage food services in fort Wayne Indiana
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    707

    Really. The site rules only tell the OP to ignore...

    Really. The site rules only tell the OP to ignore any responses that do not have a * next to the title. Get off your high horse.
    I was not giving advice, simply answering a question, and explaining...
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    707

    Southern Mechanism it's the damn auto correct on...

    Southern Mechanism it's the damn auto correct on the phone.
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    NEVER put CO2 into a refrigeration system. It can...

    NEVER put CO2 into a refrigeration system. It can cause unexpected EXPLOSIVE consequences. A suction filter is used to catch any crap before it goes into the compressor. It is used usually on initial...
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    707

    The 036 denotes the btu's in thousands. There are...

    The 036 denotes the btu's in thousands. There are 12,000 btu's in one ton. Therefore your unit is 3pre tons
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    Do you know what the PID parameters are?

    Do you know what the PID parameters are?
  14. Replies
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    Do you have a complete model number. There are a...

    Do you have a complete model number. There are a few versions of the Y.P.A.L? Does it have a BFD or any other accessories?
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    You should check out a mechanics lien for Florida

    You should check out a mechanics lien for Florida
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    Check into the landlord/ tenant laws in Florida....

    Check into the landlord/ tenant laws in Florida. I know in California, that the renter can deduct that from his rent. Hence you get paid by the renter and the landlord and tenant can argue over what...
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    Can you run it in service test?

    Can you run it in service test?
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    793

    Is there any thing else in the unit that will...

    Is there any thing else in the unit that will cause an 'externalanswer stop' I.e. duct detector or occupancy switch.
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    They all need to be the same length so they all...

    They all need to be the same length so they all have the same pressure drop through them, so you get uniform flow through the coil.
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    I like to spray coil cleaner on and then run he...

    I like to spray coil cleaner on and then run he fan to pull as much cleaner into the coil as possible.
  21. What refrigerant?

    What refrigerant?
  22. Do you have the m.n. of the cooling coil?

    Do you have the m.n. of the cooling coil?
  23. Replies
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    Yeah. I like working on Trans units. They are...

    Yeah. I like working on Trans units. They are usually pretty easy. I hate Yorks, no field experience by anyone in the factory, the electrical panel is way to small.
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    It reconfigures the L.T.B for conventional...

    It reconfigures the L.T.B for conventional thermostats. The pain in the neck is to see if your unit is pre 93 or after 93. They change where the wires land on the LTB
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    If you have the UPC board with the #'s and the...

    If you have the UPC board with the #'s and the letters. Yes you can switch to a conventional stat. If you have the UPC board with no connections on it, then you would need the C.T.I board....
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