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  1. Replies
    11
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    711

    That would be text book action Jangles, but look...

    That would be text book action Jangles, but look a bit closer and assume that the rack had been running in the cold up to that point. He unsplit at -10....Sounds like the E2 is crashing, going to...
  2. Replies
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    1,840

    Good Luck with that Justin....Correct remove oil,...

    Good Luck with that Justin....Correct remove oil, remove all filters, do not replace. Pull vacuum. Your still going to have some POE in it good luck getting moisture out of that. Keep changing vacuum...
  3. Replies
    24
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    4,006

    Just correct the problem with non adjustable...

    Just correct the problem with non adjustable valves. Go to each bulb, tighten and insulate. I use 7/8 by 1/2.
    Flooding problem will disappear.
  4. Replies
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    2,163

    In addition some field notes, clean bright and...

    In addition some field notes, clean bright and tight. These days were working with smaller suction lines in supermarket most important to get good contact/max surface contact and very tight about two...
  5. Replies
    27
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    2,140

    Jeeeeeze Bunny with the best answer...

    Jeeeeeze Bunny with the best answer again...exactly. If I might add just rip 10 feet of the 3/4 wall off in the machine room just before the compressor just kidding.
  6. Thread: CPC

    by frigeguy
    Replies
    11
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    1,340

    CPC

    I understand the network etc. My question is from one controler to the next is comB ?
  7. Replies
    28
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    3,434

    I was going to say ...did you ask if the fan on...

    I was going to say ...did you ask if the fan on the condensor was spinning?
  8. Thread: R22 to MO 99

    by frigeguy
    Replies
    9
    Views
    3,760

    Hi Rob ..I'm looking at new scrolls with 407 duel...

    Hi Rob ..I'm looking at new scrolls with 407 duel temp rack question is what type of discharge pressures should I run? currently (fan control at 190) ( hold back at 180 ) we have a receiver. This...
  9. Replies
    7
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    1,050

    Sounds like the relief port was missed here. Do...

    Sounds like the relief port was missed here. Do you have a heated port on the freezer wall? This would explain the frost, 3" heated vent for barometric relief should be located on that wall near the...
  10. The time on a clock is not a sign of trouble to...

    The time on a clock is not a sign of trouble to start with, a power failure or a service tech testing the defrost would explain the incorrect time. As I read it you put it in a defrost and then you...
  11. Replies
    11
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    1,299

    I have a few high velocity coils in a a large...

    I have a few high velocity coils in a a large produce cooler that get plugged from the dirt that comes off the produce, wash the "mud" out of those every couple of years. ...
  12. Replies
    6
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    804

    Ok Mike switched it back today...Temperature now...

    Ok Mike switched it back today...Temperature now controlled by coil temp (center of upper gravity coil) added sensor for actual box temp. Set for coil temp 29f with 10 deg deadband. Now can we see...
  13. Replies
    6
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    804

    Yes its aged beef mike, yes its gravity coil, its...

    Yes its aged beef mike, yes its gravity coil, its a dx with no misting. Set it up with A19 temp control min diff. and 6 defrosts/90 min. Almost a year now no calls. Found the flow valves under the...
  14. Replies
    6
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    804

    It only warms up to 45 f on defrost. Defrosted...

    It only warms up to 45 f on defrost. Defrosted yesterday. Desired space temp should be 36 - 38 f, I have annother one running with 6 defrosts, around 36f its been fine for a year now, different...
  15. Replies
    6
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    804

    Hill/Barker info

    Aged Beef case, gravity coil with glycol. Can't find info on Hill website. Looks like its 36 - 38 f I'm guessing at the defrost. 4@90min. ?...
  16. Replies
    8
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    1,727

    The control is new. You are trying to set with no...

    The control is new. You are trying to set with no differential. It is also true we don't want to run in a vaccume at any time. Install suction port in a vertical position on the suction line...
  17. Replies
    16
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    1,609

    All of my receivers are heat traced and...

    All of my receivers are heat traced and insulated, the machines fail in the winter here if the heater breaks due to loss of pressure after a defrost. I might add that the roof can get down to -10f...
  18. Replies
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    1,394

    I saw problems with this from the start. but this...

    I saw problems with this from the start. but this goes back years to old 5 deck frozen food cases with a primary aluminum coil, not quite as bad as the hussmann impact coils. The best repair is to...
  19. Replies
    42
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    7,599

    Wow it has never crossed my mind that this was a...

    Wow it has never crossed my mind that this was a problem...Normally all of my condensors are 600vac 3 ph, but I do have some with single phase variable speed lead motors. Seems to be a problem with...
  20. Replies
    27
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    8,093

    You say you started with 7 deg superheat...at...

    You say you started with 7 deg superheat...at what suction pressure? Now were at 25 deg superheat and the inlet of the coil is freezing? So were going to set this up on what the coil looks like? ...
  21. Replies
    17
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    2,395

    If I remember we have a main liquid line solinoid...

    If I remember we have a main liquid line solinoid with a 20 lb loaded check on the right, beside control pannel for cool gas differential. This is the same on both med and low, they did alot of med...
  22. Replies
    17
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    2,395

    Im pretty sure the bottom one was low receiver...

    Im pretty sure the bottom one was low receiver and the other was a low pressure. Its been a while. I stand corrected just read your post ice ...thats correct time clock has alarm contacts.
  23. Replies
    17
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    2,395

    You would be correct Phase. I worked at Hussmann...

    You would be correct Phase. I worked at Hussmann Brantford 1992-1998. (Install Mechanic) Bernie constructed the racks. There would be a few drawings around here but I don't remove them from the...
  24. Replies
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    507

    second sticker says 2TA1090 on the same screw....

    second sticker says 2TA1090 on the same screw....
  25. Replies
    5
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    507

    Compressor info required

    We have a med temp rack with screw compressors Mod 4TA0913D it has a second sticker (carlyle) 2TA1090

    On the low temp rack compound carlyle 06CY889J-103

    Any information on these would be...
  26. Replies
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    738

    Well not to answer exactly ...but I did run...

    Well not to answer exactly ...but I did run across a similar situation some years ago, exacatly this same thing occured. But they did call me in on the third crane lift on the same compressor. This...
  27. Replies
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    3,752

    Had that same problem 10 years ago. Larger...

    Had that same problem 10 years ago. Larger suction accumulator had an inspection plate on the bottom. Removed plate and 15 gallons of oil. Pick up hole was blocked with a piece of armaflex, probably...
  28. Replies
    23
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    2,109

    Useing liquid dryers in suction core is correct...

    Useing liquid dryers in suction core is correct as I have used this method on larger double burn out systems ( one compressor burns out then the replacement compressor burns out.) Just a couple of...
  29. Replies
    11
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    2,194

    correct, check condensor fan bearings, could be...

    correct, check condensor fan bearings, could be over heating going off on thermal and cooling down by the time the high reset is pushed. Condensors often look clean I always blow them out anyway....
  30. Replies
    31
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    5,469

    When reading posts like this It makes me glad...

    When reading posts like this It makes me glad that most of the control i'm doing is microthermal. Just last week a tech took over and I just sat back and let him correct the problem remotely, as for...
  31. Replies
    14
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    2,796

    appears the heaters are not working in just two...

    appears the heaters are not working in just two of the doors. The power is not constant its pulsed... overide power saver and test the two doors...
  32. Replies
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    2,860

    This is done on the lead system/coldest as target...

    This is done on the lead system/coldest as target averageing usually 2 or more discharge air sensors no transducer. Suction header pressure controled by suction transducer on that suction group until...
  33. Replies
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    1,397

    I wonder if it needs a board per section on a 4...

    I wonder if it needs a board per section on a 4 way split and a transducer per section. It would make sense to make one board/node that would control four sections.
  34. Replies
    14
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    5,747

    term/fan klixons have different set points...

    term/fan klixons have different set points depending on application and or manufacturer of equipment. A common problem, check system, a number of things will stop the fans. Heres what I find at start...
  35. If converting 22 over to 404 The TXV as well as...

    If converting 22 over to 404 The TXV as well as the distributer oriface will need to be enlarged, ( can you tell i'm switching alot of cases over to 404 )
  36. Thread: Roasted TXV

    by frigeguy
    Replies
    24
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    2,284

    If you can replace the head. You did wrap the...

    If you can replace the head. You did wrap the valve. No charge in the head the valve will remain closed. Not really uncommon on the install side to pop the head once in a while ....
  37. Replies
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    2,471

    In the final wash, it would depend on how the TX...

    In the final wash, it would depend on how the TX valve was sized what the minimum head pressure is.

    Agreed JP , I work on racks where outdoor ambiant is about 10f right now, lots of subcooling...
  38. Hey Jay I'll give it a shot. Start by pumping...

    Hey Jay I'll give it a shot. Start by pumping down a couple of your larger systems on that rack, isolate them. Turn off heat reclaim if you have it and pump out, isolate. Next lock all condensor fans...
  39. Replies
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    893

    Great idea to save money JP. Were looking at a...

    Great idea to save money JP. Were looking at a much lower load on the racks. With low return air temp combined with heat reclaim you have trouble maintaining head pressure. Some newer racks with...
  40. Replies
    18
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    1,176

    Installed in the wrong direction is a guess? I...

    Installed in the wrong direction is a guess? I haven't found any unmarked solinoids in a long time. Did he take it appart to install it? is it assembled correctly? Did he warp the body and now its...
  41. Replies
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    2,828

    Good answer. I will add, we are going to slightly...

    Good answer. I will add, we are going to slightly oversize the btu requirement on the -35 compressor at full load. Then take into consideration the low load condition. Just take some of the load off...
  42. Replies
    7
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    605

    Basic 101 ..seems you would be correct ( adjusted...

    Basic 101 ..seems you would be correct ( adjusted superheat ) I start up zero zone and a number of other manufactures daily you did the right thing. Do not assume the superheat was set correctly at...
  43. Replies
    16
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    2,531

    All of the above, I will add check the phase. It...

    All of the above, I will add check the phase. It is possible to have the L1 and L2 reversed at the evaporator. This will give you the same leg on both sides of the termination solinoid in the clock,...
  44. Replies
    45
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    4,755

    Its not right if the box is not cold enough !!!...

    Its not right if the box is not cold enough !!!
    Looking at your origional pressures, I am assumeing your box was +15 at the time you took the pressures...Indicates a plugged screen or high superheat...
  45. Replies
    31
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    2,591

    A refrigeration system has a compressor operable...

    A refrigeration system has a compressor operable to supply relatively hot compressed refrigerant gas, a condenser to liquify the relatively hot compressed refrigerant gas from the compressor, a...
  46. Thread: Headmaster

    by frigeguy
    Replies
    18
    Views
    2,106

    When is someone going to ask the real questions...

    When is someone going to ask the real questions here.
    Was it bypassing
    What was the receiver pressure pump off
    What was the receiver pressure after start up
    Was the bypass line hot
    What was...
  47. Replies
    11
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    1,402

    All of my outdoor condensing units cycle crank...

    All of my outdoor condensing units cycle crank case heater on aux contacts compressor contactor. We insulate receiver and self regulateing heater remains on year round. The liquid injection on scroll...
  48. Replies
    5
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    574

    No its just a schreder about 1 inch up. Take off...

    No its just a schreder about 1 inch up. Take off the roto locks or unsweat and tip the pump to drain the oil. You may want to remove the accumulator and dump it as well. Replace liquid drier as was...
  49. Replies
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    1,950

    You called it JP. For those of us that have been...

    You called it JP. For those of us that have been checking valve plates and pistons for many years I would ask if you had a 350 block and you paid $2000 for your polished and ported heads do you think...
  50. Replies
    6
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    1,021

    Sounds like you need to set the valve. Why would...

    Sounds like you need to set the valve. Why would you remove the duel valve set up? the Y series works well in this application....
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