Search:

Type: Posts; User: wdshea

Page 1 of 4 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    115
    Views
    13,421

    Wait till load is normal before clearing the...

    Wait till load is normal before clearing the glass?
  2. Replies
    115
    Views
    13,421

    If it has a receiver, charge per flooded...

    If it has a receiver, charge per flooded evaporator calculated procedure. Then adjust txv. Then check sight glass assuming cooler is under normal load conditions and adjust charge appropriately?
  3. Replies
    115
    Views
    13,421

    How do you charge with a receiver (but without a...

    How do you charge with a receiver (but without a HPCV)?
  4. Replies
    115
    Views
    13,421

    When you say if it has a receiver you cant charge...

    When you say if it has a receiver you cant charge by SC, does that also include systems with receivers but DO NOT have a head pressure control?
  5. Replies
    3
    Views
    175

    I would also suggest wrapping some electrical...

    I would also suggest wrapping some electrical tape around the rubber tip on the pen, and even the clear part to secure those pieces together. Ive had both come off before while sticking the pen deep...
  6. Replies
    3
    Views
    175

    I put mine in auto and let it warm up for at...

    I put mine in auto and let it warm up for at least two minutes. Then slap it in manual, on small. Adjust with the probe in fresh air (no refrigerant) adjust to between one and two beeps a second.
    ...
  7. Replies
    115
    Views
    13,421

    I guess the bottom line is if there is a head...

    I guess the bottom line is if there is a head pressure control the charge must be calculated? You cant just charge based on subcooling like any other system?

    If i came to a system and was unsure i...
  8. Replies
    8
    Views
    441

    I think black rtv is the best IIRC.

    I think black rtv is the best IIRC.
  9. Replies
    57
    Views
    2,095

    P.S. alaska, charging a system b/c of low suction...

    P.S. alaska, charging a system b/c of low suction is probably the #1 rookie mistake.

    P.P.S. subcooling goes up with restriction.
  10. Replies
    57
    Views
    2,095

    Never EVER charge a system without first knowing...

    Never EVER charge a system without first knowing hi/lo pressures, subcooling, and superheat. Doesnt hurt to know other information. Never charge by sight glass.
  11. Replies
    14
    Views
    632

    If you think using an epoxy is the proper fix,...

    If you think using an epoxy is the proper fix, your ignorance does not need stating. Recover the refrigerant and do the repair exactly as stated.

    One more addendum, flow nitrogen through the...
  12. Replies
    43
    Views
    1,524

    Yes, given the specific pressure and if enough...

    Yes, given the specific pressure and if enough heat is rejected or absorbed.
  13. Replies
    43
    Views
    1,524

    Are screws/centrifugals pumps or compressors?...

    Are screws/centrifugals pumps or compressors? Based on you definition, a centrifugal would be a pump.
  14. Replies
    32
    Views
    969

    Better performance from a non-regulating txv and...

    Better performance from a non-regulating txv and cpr, or pressure regulating txv and no cpr?
  15. Replies
    32
    Views
    969

    How is a pressure limiting txv different? How...

    How is a pressure limiting txv different? How will tht prevent floodback? If there is a low load condition, my suction pressure will be low, therefore negating the benefit of that feature?
  16. Replies
    32
    Views
    969

    I want to build my own condensing unit for low...

    I want to build my own condensing unit for low temp.

    It would have a HPCV with two fans on the condenser. One would run continuously, and the other would cycle as necessary. Then to the receiver...
  17. Replies
    43
    Views
    1,524

    Maybe if you were to look at a centrifugal or...

    Maybe if you were to look at a centrifugal or screw compressor on a chiller it would make more sense?
  18. Replies
    32
    Views
    969

    What i had in mind was a CPR in conjunction with...

    What i had in mind was a CPR in conjunction with a sub cooler. Then do y'all believe an accumulator could avoided?
  19. Replies
    32
    Views
    969

    This part i dont understand (im in comm a/c),...

    This part i dont understand (im in comm a/c), wouldnt a low airflow issue with a txv cause the txv to pinch off as much as possible?
  20. Replies
    32
    Views
    969

    Assuming the system was designed correctly, why...

    Assuming the system was designed correctly, why would a system ever floodback?
  21. Replies
    32
    Views
    969

    With that said, why ever have an accumulator if...

    With that said, why ever have an accumulator if you are aware of a floodback issue? I've seen some condensing units with both componenents and wondered why.
  22. Replies
    32
    Views
    969

    Accumulator necessary with CPR?

    If using a crankcase pressure regulator, is it still necessary to use a suction line accumulator? Wouldnt limiting crankcase pressure also prevent floodback?
  23. Replies
    20
    Views
    1,549

    Problem solved! Internal filter drier was...

    Problem solved!

    Internal filter drier was restricting flow. You know the ones i'm talking about, those POS copper FD's that trane put inside the unit. The mesh had actually come apart and the...
  24. Replies
    57
    Views
    3,498

    tech rep or salesman...?

    tech rep or salesman...?
  25. Replies
    57
    Views
    3,498

    I wouldnt hold it against him, he doesn't NEED to...

    I wouldnt hold it against him, he doesn't NEED to know, and is confused.

    Truth is, i didnt even know until earlier today...
Results 1 to 25 of 79
Page 1 of 4 1 2 3 4
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event