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  1. Replies
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    2,209

    I have also replaced a lot of high pressure...

    I have also replaced a lot of high pressure switches. I get a lot of rub outs going from the controls to the safeties. Had a short in the economizer, due to the access panel pinching the wires. Some...
  2. Thread: Leak Lock

    by B1978
    Replies
    25
    Views
    4,566

    I have used RectorSeal for the past year without...

    I have used RectorSeal for the past year without a single issue. Think I may try nylog now.
  3. Replies
    6
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    540

    Thats what im trying to tell them. They cool an...

    Thats what im trying to tell them. They cool an important product, but they dont understand the icepacks maintain a constant temp.
  4. Replies
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    540

    I did that, but they want a tighter reading. I...

    I did that, but they want a tighter reading. I just dont want the compressor cycling every 3 minutes.
  5. Replies
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    540

    Jewett Under counter

    I have a Jewitt Thermo Scientific under counter refrigerator. What is the minimum temperature differential setpoint I can use?
    I have the temp set a 3C, with a 3C deadband. I timed it, and it was 6...
  6. Replies
    58
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    4,240

    I have had pretty good luck with Carrier units,...

    I have had pretty good luck with Carrier units, as well as their knock off Tempstar. Im negative on York, and Trane.
  7. Replies
    1
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    545

    check the charge, set the bypass to factory specs.

    check the charge, set the bypass to factory specs.
  8. Replies
    5
    Views
    1,744

    Trane is terrible... I like the Carrier ones the...

    Trane is terrible... I like the Carrier ones the best. I am installing a McQuay 2 ton, I only need it to cool, is this a mistake?
  9. Replies
    51
    Views
    6,996

    I ran into this situation. Another contractor had...

    I ran into this situation. Another contractor had the factory approve the huge slab coils from 22 to 410A. I went higher up and had it looked at and they said no. I quoted it the right way and lost...
  10. Replies
    14
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    1,548

    I always read the start up check list on...

    I always read the start up check list on equipment im unsure of. It can save you time and money.
  11. Replies
    14
    Views
    1,523

    In the hotter areas, you only get a few years out...

    In the hotter areas, you only get a few years out of them, then toss them. Its not worth re-coating them. We cut them into pieces.
  12. Replies
    93
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    12,026

    Things i see in commercial are Dirty coils...

    Things i see in commercial are

    Dirty coils
    Restrictions
    airflow
    txv issues
    cold return air, supply mixing with the return.
    poor ducting design

    Rarely is it ever a leak, unless its a...
  13. Thread: Carrier 48TJD005

    by B1978
    Replies
    10
    Views
    1,002

    You can do a txv conversion or replace the header.

    You can do a txv conversion or replace the header.
  14. Replies
    16
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    2,345

    Maybe its the wrong LP switch for the...

    Maybe its the wrong LP switch for the refrigerant? 407c?
  15. Thread: Trane

    by B1978
    Replies
    18
    Views
    1,845

    Trane what to say. The compressors they put in...

    Trane what to say. The compressors they put in there are junk. I changed 2 today in an RTU, the next unit over needs 2, thats probably Tuesday. And we had an Intellipak do the same thing this week,...
  16. Replies
    33
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    4,376

    So I need around 20 psi. I adjusted my regulator...

    So I need around 20 psi. I adjusted my regulator to around 23 to see if it holds. I'm losing water though. Im concerned about that. I added water twice, valving off the regulator. I think my...
  17. Replies
    16
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    2,345

    Has someone bypassed the low pressure cutout to...

    Has someone bypassed the low pressure cutout to remove the pumpdown? Or is the LP switch bad? Wait, where is it reading LP from? is it on a port someone back seated so its not reading? Those are the...
  18. Replies
    33
    Views
    4,376

    My regulator says 25, my pumps running around 25,...

    My regulator says 25, my pumps running around 25, when you open the regulator to the system its just keeps climbing, 35+. I still need to find out the design pressure.
  19. Replies
    33
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    4,376

    I need to replace the regulator, or adjust it, it...

    I need to replace the regulator, or adjust it, it lets in to much water.
    My air separator is high on the piping before the inlet of my single pump.
    That B&G from the above link is real similar to...
  20. Replies
    73
    Views
    6,215

    can you see all the distributor inlet ports to...

    can you see all the distributor inlet ports to the coil, are they all the same temp? none are frosted? I think you either have some clogged orifices, or, are you recirculating air? supply to return?...
  21. I have installed 20+ Honeywell 6000's with 0...

    I have installed 20+ Honeywell 6000's with 0 failures.
  22. Replies
    73
    Views
    6,215

    I see up to 100 psi low sides when its crazy hot...

    I see up to 100 psi low sides when its crazy hot inside. Did you get it fixed?
  23. Replies
    33
    Views
    4,376

    I have a Constant Volume Chilled Water System....

    I have a Constant Volume Chilled Water System.
    250ton chiller, 1 pump, 6 air handlers, 2 buildings. A lot of VAV's, hydronic reheats. Thousand fire dampers, and
    Ducted returns, VAV's, controls....
  24. Replies
    33
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    4,376

    yes 3 way valves, piped on the outlet of the...

    yes 3 way valves, piped on the outlet of the coil, I may have to verify they are piped correctly. I will stop by there soon.
  25. An oil lugged evaporator? Maybe he has oil in the...

    An oil lugged evaporator? Maybe he has oil in the evap?
    Its possible that condenser and coil do not match tonnage wise? say a 38k evap and a 60k compressor?

    piping is sized correctly? oversized...
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