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Type: Posts; User: jafridgedoctor

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  1. Replies
    6
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    663

    Yes Ice, they plan on changing the cases as well....

    Yes Ice, they plan on changing the cases as well.
    Yeah I think they would want minimal disruption to their operations considering its one of their larger stores.
    I was looking at the Hill-Pheonix...
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    6
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    663

    Supermarket system changeout

    Hi Everyone,
    I have a potential customer that wants us to do a refrigeration system changeout.
    Currently they have 3 Hussmann Protocol units.
    Model # PH05PK-MFMFMFMFMF
    another Model #...
  3. Replies
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    4,808

    Otto8, Glad to see that you solved the problem...

    Otto8,
    Glad to see that you solved the problem in the end.
    However,I don't think that this compressor is a 3 phase unit with the amps that you are pulling.
    That 5amp reading is probably the...
  4. Replies
    1
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    3,326

    Delfield Freezer

    Hey guys,
    I have a Delfield freezer model #6525 that a customer has asked me to look on. I realized that it has been worked on a couple of times.
    The nameplate says it uses R404a and is a 220v 50...
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    931

    Thanks Flange,I'll give them a call tomorrow.

    Thanks Flange,I'll give them a call tomorrow.
  6. Replies
    3
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    931

    Smardt chiller & Turbocor training

    Hi Everybody,
    Does anybody here know if Smardt will train you as an individual ? Meaning you are not with a company that is a distributor for them ?

    I will be in Canada around the time they have...
  7. Replies
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    13,460

    Can't even begin to comment. YOU really did...

    Can't even begin to comment.

    YOU really did such an install despite knowing better ?
  8. Replies
    2
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    465

    Transformer setup

    Judging from the pics it looks like they did an "open delta" setup.That's where they use two transformers and two primary phases to give you three phase secondary,perfectly acceptable as long as the...
  9. Replies
    6
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    708

    Oh no,when I said fog I don't mean like wet...

    Oh no,when I said fog I don't mean like wet condensation, I mean that between the panes of glass there is a solid white substance sticking to the glass. If you tap the glass you might see some flakes...
  10. Replies
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    803

    By virtue of fewer moving parts,scrolls should...

    By virtue of fewer moving parts,scrolls should have the better reliability factor.It's just that once there dead there finished,absolutely no fixing of them
  11. Replies
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    708

    Thanks guys.

    Thanks guys.
  12. Replies
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    803

    semi-recips obsolete ?

    Do you all think that recip semi-hermetics are now obsolete especially in a/c apps.Most new stuff that I see below a certain tonnage now all have scrolls.And anything above are screws. I only see new...
  13. Replies
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    708

    Bottle cooler doors

    Does anybody know why a glass door of a reach in would fog up.I have some units in storage that have gotten totally fogged up and some partially.They are not in operation and are stored outside.I...
  14. Makeshift condenser

    No they are not cooling the outdoors.What they have done is to use the air handler coil as additional condensing surface.Dont know why,maybe the original coil is partially damaged,or maybe they put...
  15. Well in all fairness to them ,the unit is located...

    Well in all fairness to them ,the unit is located in a restricted area.I was just able to stick my hand around the fence to get a picture.But you're right it should have some kind of protective...
  16. Ultra-ultra-high efficiency condensing unit

    Followed friend to supermarket the other day.While waiting in the parking lot this was what I saw at the back of the building.Their using an air handler as part of the condenser.This unit is being...
  17. Replies
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    1,552

    This is exactly my belief too. Her husband,who...

    This is exactly my belief too.
    Her husband,who is my brother by adoption (mine by his father) has always been saying that I'm the one who is going to take over the business when they retire.They...
  18. Replies
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    1,552

    Quite so!! She likes to say that she thinks I'm...

    Quite so!!
    She likes to say that she thinks I'm just a follower.
    I think I was taught in school that great leaders were once great followers,just can't remember if that was a quote from some great...
  19. Replies
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    1,552

    Leaders are born and not made

    Was having a discussion with in law who also happens to be one of the directors for the company that I work. She basically is of this opinion and does not believe otherwise.

    I would like to hear...
  20. Replies
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    1,847

    Universal Potential Relay

    I ve been using the Supco PR-90 universal potential relay.That's what all the supply houses out here have anyways.They work on anything from 1/4hp-5hp, 110-240volts.Just plug and play,nothing to...
  21. Replies
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    897

    All the mini-splits I know of...

    All the mini-splits I know of (Mitsubishi,Fujitsu,Carrier etc)operate this way.You can set the fan speed to "auto" and it will vary the fan speed automatically as the unit approaches setpoint...
  22. Replies
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    1,465

    Man I love fried rice the best kind IS made from...

    Man I love fried rice the best kind IS made from leftovers.
    That bacon thing does sound like a dead man walking though.
    Personally I like to microwave bacon in a paper towel to collect the oil.
  23. I charged it by weight initially (16oz 404a) and...

    I charged it by weight initially (16oz 404a) and let it run for about two hours, then I added more (not sure exactly how much) to provide cooling for comp as it seemed hot on the dome.Now the unit...
  24. Quite TRUE on that one :D

    Quite TRUE on that one :D
  25. Replies
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    1,714

    Whenever I had to splice captubes,I usually use...

    Whenever I had to splice captubes,I usually use 3/16" copper about 1" long with the two captubes meeting in the middle. Make sure to blow Nitrogen through to make sure that tubes don't get plugged...
  26. Dchappa, The evap only has one fan. I'm hoping...

    Dchappa,
    The evap only has one fan. I'm hoping the low pressure switch will do its job when that time comes.The unit is going to operate in the lab where the ambient is70-75F. No I didn't take the...
  27. Hi guys, sorry to take so long to update you...

    Hi guys,
    sorry to take so long to update you all.
    Unit has been running for a week in the shop and has been maintaining design temp of 30degrees Celsius.
    Here are the following temps and...
  28. Forgot to mention the fact that I changed comp...

    Forgot to mention the fact that I changed comp from copeland air cooled semi-hermetic to equivalent Btu tecumseh refrigerant cooled hermetic.
    The accumulator is in warm air stream of condenser.
    In...
  29. Accumulators: to insulate or not to insulate ?

    Hi guys,

    Is it necessary to insulate an accumulator on a low temp installation ?
    I just worked on a blood plasma freezer that keeps the product at -30c. It has a top mounted condensing unit.

    I...
  30. Replies
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    996

    Hey half the time I do this type of work in my...

    Hey half the time I do this type of work in my shop :eek:
    Wouldn't a 1.5cfm take 4 times longer than a 6cfm to do the same job all other things being equal ?
    In other words,is there any lineararity...
  31. Replies
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    I got the Veto xxl-f, just too lazy to pack it...

    I got the Veto xxl-f, just too lazy to pack it right now :o
  32. Replies
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    996

    Vacuum pump size

    Hey guys,
    Apart from the weight of carrying, can a vacuum pump be too big for a job ?
    I have a YJ 6cfm unit for a couple years now.I've used it on those little office refrigerators up to a 15 ton...
  33. This is how they display the product temps of...

    This is how they display the product temps of blood bank freezers and refrigerators (some kind of glycol for the freezers and sometimes water if not glycol for the refrigerators).Gives a very stable...
  34. Replies
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    610

    Yeah I figured as much.I'm going to try and get...

    Yeah I figured as much.I'm going to try and get one that finds the leak before I even get the job :D
  35. Replies
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    610

    Leaking cassette unit

    Hi all ,
    has anybody ever seen a leak with say soap bubbles and not pick it up with an electronic detector ?

    The other day I was working on a Panasonic cassette unit that I suspected had leak in...
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    If it's a mini-split with the expansion device in...

    If it's a mini-split with the expansion device in the condenser then the high side also gets insulated.If it's a normal unit with expansion device in indoor unit then liquid line is not insulated...
  37. Thread: WTF?

    by jafridgedoctor
    Replies
    59
    Views
    11,386

    Hey I hoped you all observed the safe liquid...

    Hey I hoped you all observed the safe liquid level he was pointing out:D
    Can't believe I just wasted my money on an Inficon recovery unit as well as cylinders :rolleyes:

    Seriously though,kids...
  38. Replies
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    Don't we all :D ?

    Don't we all :D ?
  39. Replies
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    843

    Hi and welcome. A pro will have to come in to...

    Hi and welcome.

    A pro will have to come in to determine if your present system is suitable and efficient for your needs.
    They will have to do a heat load calculation taking into consideration the...
  40. Replies
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    2,276

    Those guys are damn lucky!!:eek: People should...

    Those guys are damn lucky!!:eek:
    People should never walk under a suspended load no matter how many years they have been doing it.

    Looks like it was an old chiller though.
  41. Excellent looking job :cool:. Thanks to Tony and...

    Excellent looking job :cool:.
    Thanks to Tony and Andserco for the question and answer about the trap design.
  42. Replies
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    2,242

    A contactor with points that are marginal can...

    A contactor with points that are marginal can cause a recurring burnout if not replaced.I have seen where one of the stationary points overheated to the point where the bakelite insulation or casing...
  43. Replies
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    2,242

    Compressors don't just burn up!! That is just a...

    Compressors don't just burn up!!
    That is just a symptom of an underlying problem.
    Could be: high superheat,bad contactor,condenser fan motor cycling off on overload protection,dirty condenser just...
  44. Replies
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    I would call it a liquid line,not a discharge...

    I would call it a liquid line,not a discharge line.Remember the discharge line is between the compressor and the condenser.

    Typically most mini-splits I have seen have the expansion device in the...
  45. Replies
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    889

    I have the yellow jacket 68803 programmable...

    I have the yellow jacket 68803 programmable scale.
    It works okay,Ijust wish that it had the keypad,solenoid,scale,and power supply integrated into the casing like my old tif.It makes for easier...
  46. Replies
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    Just saying hi !

    Hi everybody,you have a great forum here!Learning alot just by looking at your discussions.Ive been in the biomedical field for the last 13 years.I spent about two years prior to that working in hvac...
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