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  1. Thread: Bearing heaters

    by ETC1
    Replies
    17
    Views
    708

    damn and all those years I just set them on a 60...

    damn and all those years I just set them on a 60 or 100 watt light bulb in the extra drop light
  2. Thread: Bearing heaters

    by ETC1
    Replies
    17
    Views
    708

    damn and all those years we just set them on a 60...

    damn and all those years we just set them on a 60 or 100 watt light bulb in the extra drop light
  3. Replies
    11
    Views
    710

    have an annie but it's clunky to carry on truck....

    have an annie but it's clunky to carry on truck. Use old robinair bump kits (NLA). New replacements are made by Thermal Engineering I believe it's the 2600 series
  4. Replies
    96
    Views
    20,181

    there is a time and place for all methods of...

    there is a time and place for all methods of connection. That said. Flares are cumbersome and time consuming especially on larger pipe sizes. They are also prone to leakage due to loosening from...
  5. Replies
    96
    Views
    20,181

    10000 square foot independent seasonal grocery....

    10000 square foot independent seasonal grocery. Multiple XJ Copeland units. R404A With poly oil. Done this way for space, sound, power availability, efficiency, and extreme fast track schedule...
  6. Replies
    51
    Views
    2,110

    Semi-hermetics run at half the rpm.s and have...

    Semi-hermetics run at half the rpm.s and have greater mass to absorb heat and vibration. That said it's a great comfort to know your compressor will probably out last your paper thin evaporator.
  7. Replies
    23
    Views
    1,777

    Check low pressure control. I have on occasion...

    Check low pressure control. I have on occasion had an LP switch that didn't snap shut causing contactor to chatter and compressor to rock and bounce occasionally. Problem can be intermitent.
  8. Replies
    15
    Views
    887

    If the MOP TXV is properly sized and set an...

    If the MOP TXV is properly sized and set an accumulator is redundant. With the exception of evap. fan failure or the suction line running through an ambient lower than the superheated suction temp....
  9. Replies
    15
    Views
    887

    If the MOP TXV is rated at an outlet pressure...

    If the MOP TXV is rated at an outlet pressure Below Max acceptable suction pressure of the compressor not only is a CPR not required it is contraindicated by Sporlan Valve. If unit is pumped down...
  10. Replies
    3
    Views
    1,347

    Some units call for a minimum lineset length for...

    Some units call for a minimum lineset length for their units. I guess
    Mitsu doesn't.
  11. Replies
    33
    Views
    2,809

    The grid machine was sold by scotsman in the...

    The grid machine was sold by scotsman in the 80's. The small undercounter model was rebranded and sold under many names. Kolddraft was common in the maritime industry due to the fact it could make...
  12. Replies
    96
    Views
    20,181

    Did a supermarket with these fittings. Am...

    Did a supermarket with these fittings. Am awaiting the introduction of tees and reducers.I will be using these wherever possible. Cost is still alittle high hope it comes down with time and increased...
  13. Replies
    33
    Views
    2,809

    Used to service a Luna Ice Boy in the 80's....

    Used to service a Luna Ice Boy in the 80's. Condensing unit in basement/insulated tank with refrigerated fingers in the bottom. Ice formed on fingers until it made contact with an ice bank t'stat....
  14. Replies
    60
    Views
    2,464

    Lp. switches work well as temperature controls on...

    Lp. switches work well as temperature controls on indoor units and in warm locations. Have converted walk in coolers that were frequently left open or overloaded at meal times to this type of...
  15. Replies
    48
    Views
    3,311

    what is the box size is it tight what temp and...

    what is the box size is it tight what temp and amount of product is being loaded. I've seen too many under sized units. Box sized for holding is loaded with warm product and accessed like a reach in....
  16. Replies
    9
    Views
    732

    Have changed numerous accumulators and receivers...

    Have changed numerous accumulators and receivers due too rust out, both top and bottom on accumulators and mostly bottoms on receivers. Rust is a common problem on Bulk milk equipment. Chinese steel...
  17. Replies
    9
    Views
    732

    Have changed numerous accumulators and receivers...

    Have changed numerous accumulators and receivers due too rust out, both top and bottom on accumulators and mostly bottoms on receivers. Rust is a common problem on Bulk milk equipment. Chinese steel...
  18. Replies
    11
    Views
    1,402

    Do you take your ham and eggs to the restuarant...

    Do you take your ham and eggs to the restuarant to be cooked. If your going to be a contractor be a contractor. When your cob job doesn't work right it will be because you were incompetent. Not the...
  19. Replies
    42
    Views
    4,822

    The question is not whether change is inevitable...

    The question is not whether change is inevitable it is is it well thought out and appropriate. I too am constantly preparing for change. Just try to figure out whether we're making progress or motion.
  20. Replies
    17
    Views
    2,021

    Freezing can and sometimes does happen due to...

    Freezing can and sometimes does happen due to lack of traps. The next time you install a new evaporator try reading the install manual it will make you a professional. If people leave doors open etc....
  21. Replies
    17
    Views
    2,021

    Nothing like driving 40 miles on a hot humid day...

    Nothing like driving 40 miles on a hot humid day to install a trap on a freezer drain to stop coil ice up and allow box to go down to temperature. Why would anyone want their freezer to draw warm...
  22. Replies
    42
    Views
    4,822

    just completed an 18 unit install all copeland...

    just completed an 18 unit install all copeland XJAL and XJAM R404A in less than a year this job will be prohibited. How do you plan large jobs. Where are the Propane,CO2, and Ammonia prep classes. I...
  23. Replies
    18
    Views
    1,296

    Might want a receiver for pump down. 12' coil...

    Might want a receiver for pump down. 12' coil probably needs 10 to 15 lb. to operate properly
  24. metal cover is factory it protected ceiling Many...

    metal cover is factory it protected ceiling Many of these evaps. were mounted in wooden boxes
  25. Unit should be against ceiling air is drawn thru...

    Unit should be against ceiling air is drawn thru the coil and blown across the ceilng and dropping down the walls. This creates a thermal envelope
  26. Replies
    71
    Views
    7,537

    You built what is called a surge receiver it's...

    You built what is called a surge receiver it's an old design congratulations for your ingenuity.
  27. Replies
    87
    Views
    16,630

    March 2011 I wrote about liking my 2010 Transit...

    March 2011 I wrote about liking my 2010 Transit Connect. Unfortunately Labor Day 2013 A NY State Trooper directed me across traffic into the path of a mini van thus totaling both. The ford had 99000...
  28. Replies
    23
    Views
    2,419

    Transport refrig is a wide temp range unit 401B...

    Transport refrig is a wide temp range unit 401B is an R12 replacement good for low temp Mp39 isn't. why reinvent the wheel 401b is still available. It
  29. Thread: DOT cylinder

    by ETC1
    Replies
    2
    Views
    566

    While it is possible to refill bottles that are...

    While it is possible to refill bottles that are pre- check valve. It would be illegal to transport these as per DOT rules. These are disposable and say do not refill. I would consider safety and...
  30. While I know how to use gauges a thermometer and...

    While I know how to use gauges a thermometer and apt chart After 50+ years. I bought 2 of these for my service trucks. Using them is fairly straight forward. My son had to help me with the bluetooth...
  31. Replies
    25
    Views
    2,470

    Look to Europe for the answers. Already using HC...

    Look to Europe for the answers. Already using HC refrigerant for several years.
  32. Replies
    16
    Views
    2,114

    still have several camps and stores with these in...

    still have several camps and stores with these in use, Built with real copper about 60 years old and not porous or cracked.
  33. Thread: freezer defrost ?

    by ETC1
    Replies
    24
    Views
    3,112

    Walk in or case depends on design Some cases stop...

    Walk in or case depends on design Some cases stop fans on temp.
  34. Match testing for methyl cloride. Don't miss the...

    Match testing for methyl cloride. Don't miss the smell of SO2.
  35. Replies
    14
    Views
    1,808

    cut in for to highest box temp set cut out...

    cut in for to highest box temp set cut out approx. 20 degrees lower. fine tune from there. Make sure that condensing unit ambient doesnt drop below about 55 degrees
  36. Replies
    9
    Views
    1,285

    Semi critical charge. Short charge sub cooling...

    Semi critical charge. Short charge sub cooling valve throttles back too far at lower ambients. over charge causes floodback. Charge listed in manual. Many tanks I've worked on are installed...
  37. Replies
    9
    Views
    1,285

    Mueller Tank it is a subcooling valve

    Mueller Tank it is a subcooling valve
  38. Replies
    26
    Views
    5,440

    I own 2. Run about 1200 miles a week in season...

    I own 2. Run about 1200 miles a week in season with each, First summer with both so far so good. If these hold up as well as the 2010 model they will pay for them selves in operating savings. Maybe...
  39. Replies
    28
    Views
    3,050

    Gotta laugh I would advise letting someone else...

    Gotta laugh I would advise letting someone else be the butcher and finding work that allows you to make an honest profit. While showing you are not a moron that does sh-t work.
  40. Many of todays tools didn't exist when I started...

    Many of todays tools didn't exist when I started out. Many of the new tools are great improvements but many are security blankets. Tools don't make good mechanics. Knowledge makes good mechanics. I...
  41. Replies
    24
    Views
    3,266

    is it really copper or is it cuppernickle

    is it really copper or is it cuppernickle
  42. Replies
    30
    Views
    3,995

    First I love open compressors. When I started in...

    First I love open compressors. When I started in refrigeration most hermetics were on domestic refrigerators and small equipment. I was always told they were developed to make the cap tube feasible....
  43. Replies
    13
    Views
    1,939

    9w cw 115v Supco 671 Other 50 or so in shop or...

    9w cw 115v Supco 671 Other 50 or so in shop or at wholesalers will take special motors with me too job if I'm at shop and know what I might use. Truck weight is cost shop wear is a cost. Load...
  44. Replies
    16
    Views
    1,810

    I was taught receiver size with the receiver...

    I was taught receiver size with the receiver outlet closed and system pumped down to 0 psi the receiver should not exceed 80% full. Changing undersized receivers is not required as a second receiver...
  45. Replies
    27
    Views
    3,453

    I started my business in rural NY in 1979 by...

    I started my business in rural NY in 1979 by going to potential customers introducing myself and giving them my card. I gave them a brief summary of services I offered. I told them if they were...
  46. Replies
    10
    Views
    1,465

    Pressure is limited by pressure rating of system,...

    Pressure is limited by pressure rating of system, old R12 hermetics were rated at 150#
  47. Replies
    28
    Views
    3,398

    I don't find breakers by shorting. I've located...

    I don't find breakers by shorting. I've located too many 14 wires attached to 60 or 80 Amp three phase breakers with no other wires think of the fire hazard in an old building with old over fused...
  48. Thread: Milk bulk tank

    by ETC1
    Replies
    10
    Views
    2,426

    What part of thermostat is failing if it is the...

    What part of thermostat is failing if it is the points it is possible that it is a DC control circuit requiring snap action points to avoid burnout.
  49. Due to lack of reciever capacity clearing the ...

    Due to lack of reciever capacity clearing the sightglass before boxes are at temp will back liquid up in the condensor as the expansion valves throttle back. This is the most likley cause of...
  50. Static coils require a large amount of...

    Static coils require a large amount of refrigerant. Most non-factory installations have undersized recievers.These coils can run as low as 5degrees. Allow boxes too pull temperature then check...
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