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Type: Posts; User: invensys

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  1. Replies
    16
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    1,561

    Nope

    Nope.
  2. Replies
    16
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    1,561

    Johnstone Stat info

    A30-2210 info hopfully pasted.
  3. Replies
    16
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    1,561

    Johnstone Part #'s

    A30-2210 = Johnstone part # B13-240
    A12-701 = Johnstone part # B10-334
  4. Replies
    22
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    3,541

    Correction

    Correction:
    The new 9045 and 9145 have 15A resistive & 1/4 hp @ 120v, and 1/2 hp at 240v, for the compressor.

    Should be:
    The new 9045 and 9145 have 30A resistive & 1hp @ 120v, and 2hp at 240v,...
  5. Replies
    22
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    3,541

    UDT

    The Paragon UDT is cool, but here is the real info:

    It is not intended to be a direct replacement for the Paragon 8xxx series defrost controls based on the relay capability of the existing...
  6. Replies
    7
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    1,136

    Microtech?

    I don't know if this helps. The link below is for a brand called Microtech.

    ...
  7. Replies
    3
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    3,085

    Just a thought

    Maybe this will help.

    http://www.nist.gov/srd/webguide/CYCLE_D%20ver%203.0_files/CYCLE_D%20ver%203.0.htm#temperature
  8. Replies
    10
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    997

    Grammar errors

    Hi Dave,

    I was distracted during my writing of the previous response. I apologize for the grammar errors.
  9. Replies
    10
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    997

    The idea

    If this is a service only class, I can understand your reasoning. If this class is to learn how a refrigeration system works, then this lab recommendations I have made is valuable. My...
  10. Replies
    10
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    997

    Pressure transducer measurements: discharge, 6"...

    Pressure transducer measurements: discharge, 6" past compressor, suction, 6" after evaporator.

    Temperatures, use thermocouples soldered to discharge tube at the condenser inlet. Suction, close...
  11. Replies
    10
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    997

    capillary size

    Just a thought, try .030 capillary, 2', assuming 12k btu, maybe a Swagelok model SS-SS1.
  12. Replies
    10
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    997

    Tweak the system. Do real engineering.

    Here is what I recommend. Remove the TXV. install a vernier metering valve with about 2' of capillary tube.

    http://www.swagelok.com/downloads/webcatalogs/MS-01-142.pdf

    The link above shows...
  13. Replies
    9
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    985

    Wide Differnential

    A constant cut-in control is the idea. Wide differential. Just need to get the ice off of the coil. Any thermostat with a wide differential will do. The Ranco ETC-111000-000 with the sensor...
  14. Replies
    14
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    1,943

    Defrost Issue

    Defrost for a freezer is usually time initiate. Temperatue initiate is only with Hoshizaki med temp reach -in refrigerators.

    Decrease the time between defrost cycles from, let's say 4 hours to...
  15. Replies
    3
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    758

    9700i thermostat

    You are looking for a 9700i. The website is:

    http://www.maketheconnection.com/pdfs/9700i/150-1691C.pdf
    http://www.maketheconnection.com/pdfs/9700i/110-1023E.pdf
  16. Replies
    10
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    2,870

    Zone Panel

    How many zones?
  17. Replies
    4
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    6,630

    Would you consider an ERC2 control? I have a...

    Would you consider an ERC2 control? I have a sample if you would like to try one?
  18. Replies
    13
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    4,790

    Paragon ex issue

    The ex model is for export. It should not show up in the U.S. The model is identical to the U.S. models and should work. As far as comments about gears, the gears are still machine hobbed, no...
  19. Just the facts

    Just the facts
  20. Replies
    14
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    2,841

    Mechanical Relays Click Mercruy does not

    Unfortuneately, mechanical relays click. Mercury relays do not. Mercury relays have the environmental issues though.
  21. Water Heater Gas Valve Recall

    To All,

    This recall is primarily for the manufacturers. The cause is due to Hydrogen embrittlement of the screws. The products are all under warranty and existing valves reworked; sold product...
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