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  1. Replies
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    The sizing depends on how its sold. You can size...

    The sizing depends on how its sold. You can size it to handle so much hot food or so many times entering in the cooler/freezer. A lot of choices to design build. Phx is pushing a fast pull down on...
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    Also seen a limit switch that the door frame has...

    Also seen a limit switch that the door frame has to be cool before it turns on heat.
  3. Can't fix stupid !!!

    Can't fix stupid !!!
  4. Replies
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    809

    Yes too large is no better the too small of a...

    Yes too large is no better the too small of a motor, you need to match the name plate amps as close as possible.
  5. Thread: sight glass

    by steve36558
    Replies
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    2,528

    Yeah you guys are right. I prolly didn't read...

    Yeah you guys are right. I prolly didn't read enough into the question. Non condensible could be anything other then refrigerant in the system. A wet sight glass just usally means it did get wet...
  6. Thread: sight glass

    by steve36558
    Replies
    38
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    2,528

    yes

    yes
  7. Match your evap cooler to about 1400 cfm and...

    Match your evap cooler to about 1400 cfm and finish out the rest with fresh from your A/C. You never want to blow air from a kichen to the dining room because of smoke. Make the air from the A/C...
  8. After working in the trade repairing bars and...

    After working in the trade repairing bars and restaurants for 10 years 1 thing I found out is that a LOT of owners talk to each other. Sometimes you have to take in the shorts a little to keep face....
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    Then use the Honeywell 8000 pro Residential. A...

    Then use the Honeywell 8000 pro Residential. A little cheaper with a lot of options.
  10. Replies
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    Replace motor with a size closer to the ampage...

    Replace motor with a size closer to the ampage your running.
  11. Replies
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    Agreed... cut the pigtail off until you can fix...

    Agreed... cut the pigtail off until you can fix it proper
  12. Replies
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    Sounds like amps were too high to burn a motor...

    Sounds like amps were too high to burn a motor that quick. The amps need to be equal or a little less of motor name plate amps. He can adjust the amperage by moving the blade in differant locations...
  13. Replies
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    I guess the real question is what is the air...

    I guess the real question is what is the air making up? Like the name said Make up air, so it's replacing air removed from the building. Where is the air venting into? If it's doing a short...
  14. Replies
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    There should be enough out gas not to have to...

    There should be enough out gas not to have to worry about pulling a vacuum. But I still need to ask....why can't you recover the gas? how are you going to un pinch the lines to flow proper? If...
  15. Suction line is ok, liquid line is a little...

    Suction line is ok, liquid line is a little small. 1/2" should be used and suction traped every 10' to 12' of rise. The traps are mainly for poil return, so if it depends on how the compressors are...
  16. Couldn't you just use 2 and 3 stage tstats and...

    Couldn't you just use 2 and 3 stage tstats and run them thru a couple simple relays? Either add a xformer in each unit or 1 large enough to run all the controls? Honeywell 8000 series is a good lil...
  17. 90 degrees is no big deal, being most coolers are...

    90 degrees is no big deal, being most coolers are designed to handle 95. If you are sure you have the correct TEV then if its adjustable, open the feed some to increase flow thru the coil and get...
  18. Replies
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    1,445

    Sorry I didn't see what the amp rating on your...

    Sorry I didn't see what the amp rating on your current motor was? I always sized my motors to match ampeage as close as possible to unit name plate amps. OEM does strange designs on their motors to...
  19. Replies
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    1,445

    Ummmm... no...lol.. what is the name plate FLA? ...

    Ummmm... no...lol.. what is the name plate FLA? If your close to being under then fan blade is correct. If there is not enough load a motor will over heat. Check voltage, connections, make sure...
  20. Replies
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    On the face of the relay you will see a black...

    On the face of the relay you will see a black silcone spot, under that is the scew that holds the case together for the start relay. Check the contacts, they might be pitted and some sand cloth...
  21. Thread: help

    by steve36558
    Replies
    4
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    462

    WIF can suck in a lot of moisture from a room...

    WIF can suck in a lot of moisture from a room really quick. If the defrost termination is temperature make sure the kilxon is at the farthest point away from the closest heating elements. That...
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    I agree with John, start relay hangs up too long...

    I agree with John, start relay hangs up too long will blow a start cap.
  23. Replies
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    21,612

    I know several ( 5 or 6 that I know of)markets...

    I know several ( 5 or 6 that I know of)markets here in Phoenix had removed them after a year in service. Units weren't keeping water condensers clean enough so the pulled them.
  24. Replies
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    5,146

    We can go round and round on what might be needed...

    We can go round and round on what might be needed to fix this problem, but the best start is to just a box load and compare to what you have in equipment. Your supply house can give you what the BTU...
  25. Replies
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    5,146

    I think your thinking a very high superheat at...

    I think your thinking a very high superheat at the coil. We don't have a lot of humidity out here in Phx most of the time, (today 108 degrees,5% humidty @25 DP)so need to run a fairly dry coil (like...
  26. Replies
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    5,146

    With the old location there prolly was a higher...

    With the old location there prolly was a higher heat load because of it's location. It does sound like a over sized unit at this point because of it's new location and loss of possible heat load....
  27. Replies
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    The system does have a design factor on TD, but...

    The system does have a design factor on TD, but if the SH is high you get a dry coil causing more sensible heat and a low SH will give you a wet coil causing to pull more latent to dehumidify. In...
  28. Replies
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    You can change your humidity levels by changing...

    You can change your humidity levels by changing your superheat at the coil. If you run a 20 degree TD you will not dehumidify as well as if you ran a 10 degree TD. Longer on time will also help...
  29. POE oil is a great cleaner. You will get sludge...

    POE oil is a great cleaner. You will get sludge in your system. You just have to keep changing filters until it's clean, also it's a good idea if it's a TXV system have a screen style body to clean...
  30. Replies
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    One thing nice with the VFD's if you don't have...

    One thing nice with the VFD's if you don't have enough pressure at your low setting it is an easy change to get a good balance! Good luck.
  31. Make sure your changing all the oil in your pump....

    Make sure your changing all the oil in your pump. I have had really wet systems that the pump oil was so bad even the oil in the cartridge was enough to turn the oil white after a couple mins. Try...
  32. Replies
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    One thing also is to check if it really is...

    One thing also is to check if it really is draining by adding water to the pan and see what happens. Also a trick I use is to suck the water out of a condensate drain with a wet/dry vac vs blowing. ...
  33. Thread: hoshizaki

    by steve36558
    Replies
    12
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    1,137

    There could be several issues happening.. like,...

    There could be several issues happening.. like, low charge, plates seperated, water slowly draining passed dump valve, water float set too low. Are there any cubes a good size?
  34. Replies
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    Freeze damage, like someone said try to get the...

    Freeze damage, like someone said try to get the line to slope out to it's drain so it can't have water in the line next time.
  35. Thread: Opinion

    by steve36558
    Replies
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    1,036

    Stage them with 2 tstats and change lead lag...

    Stage them with 2 tstats and change lead lag after a couple months.
  36. Replies
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    Where is the tube ending up at?.

    Where is the tube ending up at?.
  37. Replies
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    598

    Chiller forum going pro only

    I want to thank you for this web site. I've been a guest menber since 2004 and have posted several suggestions over the years to help other techs. I've been in the in the refrigeration trade since...
  38. Thread: Work boots!

    by steve36558
    Replies
    122
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    17,888

    Have a pair of Timberland Pro seris steel toe. ...

    Have a pair of Timberland Pro seris steel toe. I'm 6'3" 240#, have them for a year and wear them daily on concrete! No real wear showing on soles yet. Water proof, oil skid resisant, and electric...
  39. Replies
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    Common on R134 freezer units with POE oil getting...

    Common on R134 freezer units with POE oil getting way too hot over long period of time. I found it common on BEV Air freezers that had dirty or low air movement across the condenser coil. Need to...
  40. Replies
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    3,248

    It cleans all the years of build up of wax and...

    It cleans all the years of build up of wax and sludge and plugs txv screens, plugs filters, many oil filter changes, oil pick up screens in compressors. Seems never ending.
  41. Replies
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    3,248

    Wrong oil in a rack. Added POE oil to a R-22...

    Wrong oil in a rack. Added POE oil to a R-22 system on a 30 yr old 5 compressor rack...ugggg
  42. Replies
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    2,199

    The biggest thing with True equipment is the True...

    The biggest thing with True equipment is the True tstat must match the the coil temp. So use a true cap tube and watch your charge. The tstat drops down to about 20F then warms up to about 40F to...
  43. Replies
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    1,252

    It can be inside or outside box. Evap coils will...

    It can be inside or outside box. Evap coils will need a means of disconnect in any case for code. So a tech can work on unit while the power is turned off.
  44. Replies
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    John here are some things to consider. If you...

    John here are some things to consider. If you have a used box and used equipment then more than likely is was a good match for you area of the country. LV coils are supposed to be use for high...
  45. Replies
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    6,291

    For years I found time clock defrost when the...

    For years I found time clock defrost when the clock tells it to go into defrost. Sometimes when it's not needed or not enough times. Low pressure controller goes into off cycle when the coil needs...
  46. Replies
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    5,772

    Guages and electric meter will tell your problem.

    Guages and electric meter will tell your problem.
  47. Replies
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    5,772

    Well on some larger systems the heater won't...

    Well on some larger systems the heater won't energize till compressor shuts off. Heater relay off aux contacts on compressor contactor. Your post #13 is a good starting point to check.
  48. Replies
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    1,480

    I've used copper for years and rarely had...

    I've used copper for years and rarely had problems. I also only use Calgon HD cleaner. It seems to cut the animal fat just fine and does little damage to the metal parts( coils, fins...ect) I also...
  49. Replies
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    3,882

    Making it colder will make it worse plus freeze...

    Making it colder will make it worse plus freeze the customer out... lol...We add cooling with heat to dehumidify supermarkets. Cold coil for the water and heat for the space temp. 400 per ton is...
  50. Replies
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    Slower blower speed to 350 cfm per ton and check...

    Slower blower speed to 350 cfm per ton and check to make sure your condensate it trapped proper, vent after the trap and is draining. Water being held back can also keep the levels up. I also agree...
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