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Type: Posts; User: whoaghi

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  1. New LIEBERT discharge service valve hard to turn.

    I have a discharge service valve for a 06D semi comp to replace. The new one is very hard to turn with a service valve wrench. I want to be sure this is normal before installing it, in case the...
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    LIEBERT hot gas reheat coil

    I have 10 LIEBERT deluxe 3's with systems 00 & 01 control boards (no longer available). I'm looking for info on the first stage hot gas reheat system. Anyone heard of ellimiating this first stage and...
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    1,080

    refrigerant HFO-1234yf

    Just heard of new ref. approved for new motor vehicles by EPA. They say it won't deplete the ozone layer. It's called HFO-1234yf. Anybody heard about it? Other than EPA's claim about the ozone,...
  4. never mind?

    What do you mean? Disregard your post?
  5. EDPAC 1speed compressor replace with 2speed

    We have a EDPAC 7.5 ton AC stand alone. Compressor failed; windings short to ground. Got a replacement compressor from Layton Ind. NY. The old one is single speed, the new one is 2 speed. They sent...
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    oil level / extreme vibe. comp.

    The oil level in the sight glass is inconclusive...all grey & no sign of motion?? Maybe overfilled?
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    1,104

    compressor extreme vibration

    I have a DATA-AIR machine in a server rm. Found one of 2 CARLYLE compressors dumped it's charge & oil from a hole in elbow coming from suction service valve going to accumulator. Replaced valve,...
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    Appreciate the comments, but some may have...

    Appreciate the comments, but some may have misunderstood. I'm just sharing a useful tip that may help rule out the obvious before breaking out the leak detector.
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    Leaking schrader valve? Spit on it!

    Here is an easy way to discover if a schrader is leaking. Try spitting on your finger and rub it into the port. It'll bubble up just like soap solution, and it's right at hand.
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    1,187

    Thanks to all,for all the input.

    Thanks to all,for all the input.
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    1,187

    still learning

    Im 60 years old, this is my third career. I've been at it about 8 years. If I can learn something new each day I'm happy. Thanks for the help.
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    1,187

    reusing recovered gas

    I want to reuse gas (R22) recovered from a unit in a new 50 lb. drum. It's going back into the same unit it came out of. I want to charge it in liquid form. After I pull a deep vacuum, do I need to...
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    responses appreciated

    I appreciate everyones advice on this matter. I've yet to get back to this unit, but will keep all informed. For now I know it is 3 heads (6 cyl); I don't know how much R22 may have been added....
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    more info

    This is a DATA-AIRE unit with electric unloader
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    1,115

    06D breakdown; mixed refrigerant?

    There is a computer room a/c unit with two Carlyle 06D's using R407C; Recently one lost first stage cylinders; It will run second stage when loader kicks in. I'm told that a previous tech may have...
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    thanks for input, and questions; here's more

    The water pump is new; Recent notes show EWT-66 deg / LWT-71 deg. with a pressure of 173/50 psi; That gives me an approach temp of 20 deg.
    (shouldn't it be closer to 10 deg?) Temperatures measured:...
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    1,193

    Penn water valve? plugged coax coil? or both?

    I have a 5ton server room AC with glycol drycooler that has been cutting out on high head pressure; If I open the Penn valve wide open & run the drycooler pump continuously the ac works fine. When...
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