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  1. metal cover is factory it protected ceiling Many...

    metal cover is factory it protected ceiling Many of these evaps. were mounted in wooden boxes
  2. 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
  3. Replies
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    4,187

    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.
  4. Replies
    87
    Views
    13,396

    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...
  5. Replies
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    1,395

    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
  6. Thread: DOT cylinder

    by ETC1
    Replies
    2
    Views
    303

    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...
  7. 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...
  8. Replies
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    1,274

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

    Look to Europe for the answers. Already using HC refrigerant for several years.
  9. Replies
    16
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    1,322

    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.
  10. Thread: freezer defrost ?

    by ETC1
    Replies
    24
    Views
    1,804

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

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

    Match testing for methyl cloride. Don't miss the smell of SO2.
  12. Replies
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    1,217

    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
  13. Replies
    9
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    827

    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...
  14. Replies
    9
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    827

    Mueller Tank it is a subcooling valve

    Mueller Tank it is a subcooling valve
  15. Replies
    26
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    3,753

    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...
  16. Replies
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    1,795

    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.
  17. 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...
  18. Replies
    24
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    2,378

    is it really copper or is it cuppernickle

    is it really copper or is it cuppernickle
  19. Replies
    30
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    2,637

    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....
  20. Replies
    13
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    1,492

    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...
  21. Replies
    16
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    1,361

    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...
  22. Replies
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    2,596

    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...
  23. Replies
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    1,109

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

    Pressure is limited by pressure rating of system, old R12 hermetics were rated at 150#
  24. Replies
    28
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    2,730

    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...
  25. Thread: Milk bulk tank

    by ETC1
    Replies
    10
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    2,010

    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.
  26. 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...
  27. 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...
  28. Thread: Opinion

    by ETC1
    Replies
    11
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    1,167

    Try 1 thermostat and a time delay on solenoid of...

    Try 1 thermostat and a time delay on solenoid of unit #2. Lead lag in my experience assures that both compressors wear out equally. I don't seethis as an advantage.
  29. Replies
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    584

    Freezer is atleast 20 years old I believe Raetone...

    Freezer is atleast 20 years old I believe Raetone is gone for atleast as long. Before putting money in box check for availability of other parts. Its hard to explain to a customer you can't get door...
  30. Replies
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    2,804

    Filling the reciever will make for interesting...

    Filling the reciever will make for interesting start up. Remove reciever and install cap tube drier or some other access for highside. In the 80's I serviced an ice bank bulk tank with captubes and...
  31. Replies
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    2,371

    in rural America Smart phones are an expensive...

    in rural America Smart phones are an expensive decoration. First you need cell reception then it's nice If most of the population is not on dial up if they even have a computer.
  32. Thread: tubing bender

    by ETC1
    Replies
    20
    Views
    2,289

    The only problem with a ratchet bender is it...

    The only problem with a ratchet bender is it doesn't allow bends greater than 90 degrees. I use offset bends entering penetration.and in corners. I also do a lot of piping inside units requiring...
  33. Replies
    7
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    810

    A solenoid on a scotsman flaker would be an added...

    A solenoid on a scotsman flaker would be an added cost that would add extra service and unnecesary electrical consumption. Float valves are a proven system. They are used in toilets, cooling towers...
  34. Replies
    7
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    810

    The float valve shut stopping the water flow. If...

    The float valve shut stopping the water flow. If it doesn't replace the valve
  35. Replies
    7
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    810

    Flakers require a gonstant water level. They make...

    Flakers require a gonstant water level. They make ice continuously therefore using water continuously. A solenoid valve would cause problems not a solution.
  36. Replies
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    2,086

    Saw these at Chillventa in Germany in 2010. Was...

    Saw these at Chillventa in Germany in 2010. Was told they would be in the states soon. Still waiting
  37. Thread: snoop??

    by ETC1
    Replies
    7
    Views
    1,530

    i started using Snoop in 1974. It comes in...

    i started using Snoop in 1974. It comes in galllon jugs and refillable squeeze bottes ith a pullout applicator tube. Its low viscosity alows for easy application and pinponting small leaks. As with...
  38. Replies
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    4,122

    In my world units are undersized Boxes are...

    In my world units are undersized Boxes are poorly insulate with leaks,loaded with hot steaming food etc. On Indoor condensing unit temp was frequently controlled by the LP switch. I have placed...
  39. Replies
    19
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    4,484

    5 -10 to Psi indicates low airflow low charge or...

    5 -10 to Psi indicates low airflow low charge or partially plugged drier or cap tube. Due too hot location of condensing unit and POE oil I would suspect a cap tube problem.
  40. Mars used to sell a multi voltage contactor with...

    Mars used to sell a multi voltage contactor with a built in multi tap transformer keep one on each truck for such emergencies
  41. Thread: dual capacitor ?

    by ETC1
    Replies
    41
    Views
    6,228

    If you have ever worked on old equipment...

    If you have ever worked on old equipment manufacturers frequently used multiple capacitors. Of course they mounted them properly. As a refrigeration contractor I get the opportunity to replace...
  42. Replies
    13
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    1,504

    Removing the sightglass is not critical. It...

    Removing the sightglass is not critical. It should have a moisture indicator if it is left in. The fact is it is worthless for checking for proper amount of refrigerant but it doesn't hurt tolook at...
  43. Replies
    21
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    1,575

    On unit with POE oil with a suction side leak it...

    On unit with POE oil with a suction side leak it could take more than one drier too remove all the moisture in the oil. Evacuation will not dry the oil.Change drier. If possible I would change the...
  44. Replies
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    7,855

    Bribius: They should.

    Bribius: They should.
  45. Replies
    13
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    1,389

    Most contractors are good mechanics and poor...

    Most contractors are good mechanics and poor businessmen.Here's a couple of things you might consider. 1) You will probably be able to Fully depreciate a new truck the year you buy it (investment...
  46. Replies
    11
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    2,360

    I've changed more cap tubes in the last five...

    I've changed more cap tubes in the last five years than in the previous thirty five. How much enviromental damage have we done with our larger truck payloads to carry at least 4 extra refrigerants,...
  47. Replies
    1
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    1,094

    Depending on the length width box temperature...

    Depending on the length width box temperature amount of floor insulation etc. dependson how deep your frost lens will be. There are proper engineering standards for freezer floors. Some place I read...
  48. Thread: r-12

    by ETC1
    Replies
    10
    Views
    1,049

    I regularly work on R12 systems over 25 years...

    I regularly work on R12 systems over 25 years old. Many of which I installed
  49. Thread: Short Cycle

    by ETC1
    Replies
    21
    Views
    1,909

    I have a small quantity of r-12 on my truck....

    I have a small quantity of r-12 on my truck. Sometimes due to design conditions it still makes sense to use it due to lower discharge temperature. Also R-12 units are approaching 18 years old. A...
  50. Replies
    10
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    2,718

    String trimmers are the best. At least 4 friday...

    String trimmers are the best. At least 4 friday evening calls a year
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