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  1. Replies
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    Which model machine do you have? With a remote...

    Which model machine do you have? With a remote condenser you have a HPCV, i wonder if it it could be mitigating a low charge, but with the low charhe you are not accumulating enough heat for harvest....
  2. Replies
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    How did your numbers compare to the book? Were...

    How did your numbers compare to the book? Were your pressures higher or lower? Did it take longer to make ice? How was ice formation at harvest? ( even or no?)
  3. Replies
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    PS make sure water flow is good, machine is...

    PS make sure water flow is good, machine is clean, condenser is clean, etc.

    You'll also need entering water temp and ambient temp.
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    Did you not read my post? Get a manual, and...

    Did you not read my post?

    Get a manual, and find the section regarding operating parameters after 5 minutes and it'll tell you if its over/under/properly charged.

    You definately should not be...
  5. Replies
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    READ THE HOSHI BOOK. It will tell you to check...

    READ THE HOSHI BOOK.

    It will tell you to check pressures after 5 minutes of operation. (To determine charge)

    PS check the hot gas valve, is it opening all the way? Hot gas should be just as hot...
  6. Replies
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    The thermistor tells the board when harvest is...

    The thermistor tells the board when harvest is complete...

    Once the suction line reaches the proper temp.
  7. Replies
    115
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    16,093

    Wait till load is normal before clearing the...

    Wait till load is normal before clearing the glass?
  8. Replies
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    16,093

    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?
  9. Replies
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    16,093

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

    How do you charge with a receiver (but without a HPCV)?
  10. Replies
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    16,093

    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?
  11. Replies
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    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...
  12. Replies
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    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.
    ...
  13. Replies
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    16,093

    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...
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    I think black rtv is the best IIRC.

    I think black rtv is the best IIRC.
  15. Replies
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    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.
  16. Replies
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    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.
  17. Replies
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    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...
  18. Replies
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    1,971

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

    Yes, given the specific pressure and if enough heat is rejected or absorbed.
  19. Replies
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    Are screws/centrifugals pumps or compressors?...

    Are screws/centrifugals pumps or compressors? Based on you definition, a centrifugal would be a pump.
  20. Replies
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    1,426

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

    Better performance from a non-regulating txv and cpr, or pressure regulating txv and no cpr?
  21. Replies
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    1,426

    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?
  22. Replies
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    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...
  23. Replies
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    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?
  24. Replies
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    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?
  25. Replies
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    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?
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