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Type: Posts; User: jackmm1

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  1. Replies
    19
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    1,530

    The R-12 ozone That R-12 is a hazzard to the...

    The R-12 ozone
    That R-12 is a hazzard to the ozone

    Im my HMOP it is bull ****

    Need to worry about our ozone look to the Terroist not R-12

    Enough Said
  2. Replies
    26
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    2,362

    0ne horse compressor in a Husman display freezer.

    R-12 Rules
    What is your response to the Rocket comments?
  3. Replies
    13
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    1,436

    Maybe a N/G current or Pot relay? . is the...

    Maybe a N/G current or Pot relay?
    . is the compressor going off on the OL? If so
    . The compressor windings could be OK but still locked up. Then
    . I would 1st check to see it the current or pot...
  4. Replies
    30
    Views
    4,910

    Relays

    On Start up
    Current Relay is NO Run Winding pulls in Relay on start up
    Upon shut down the Current Relay is in the NO position

    Potential Relay is NC on Start up and EMF opens the relay contacts...
  5. Replies
    15
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    2,551

    If you have receiver and you charge to a full...

    If you have receiver and you charge to a full sight glass the sub-cooling will take care of itself. As long as the system is balanced and not a rube Goldberg job.
  6. Replies
    36
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    2,343

    Leak Lock should do fine on a threaded plug on...

    Leak Lock should do fine on a threaded plug on top of the receiver. I would not remove the plug , as you are looking for trouble.
  7. Replies
    27
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    2,924

    Crozzy & Dowadudda Going into your own Business...

    Crozzy & Dowadudda
    Going into your own Business on your own is great idea if you have no family obligations ,mortgage etc. or any other finance problem
    OR You are
    Debt free, your wife has a...
  8. Replies
    17
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    1,383

    HVAC Intructor

    Deer

    Make eye contact w/your students, this only occurs when your lesson plans and subject matter are short and brief
    Make sure you motivate them and keep them interested.
    Eye contact from you...
  9. Thread: superheat

    by jackmm1
    Replies
    7
    Views
    1,357

    Rackman Assuming a match set. Superheat is...

    Rackman
    Assuming a match set. Superheat is factory set by each MFG; sporlan, alcoa etc, The valves are factory set for Low/Med/Hi temp units. Normally between 8F -12F degree superheat( spring...
  10. Replies
    10
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    1,381

    3 phase mtrs,each winding is out of phase w/ea...

    3 phase mtrs,each winding is out of phase w/ea other. (approx 120 degrees out of phase) The more ea winding is out of phase the more starting torque the motor. Single phase motors w/cap start-cap...
  11. Replies
    9
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    864

    Did you check to see if the coil is open. An open...

    Did you check to see if the coil is open. An open coil will give you a potential difference (Voltage reading)Indicating that the coil is good. Just a thought...
  12. Replies
    6
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    876

    You statement "I jumped out the pot relay, it...

    You statement "I jumped out the pot relay, it started but couldn't run"? (not sure what you mean). On the pot relay did you jump accross terminals 1&2 (contacts N/C at startup) If so the pot relay...
  13. Replies
    8
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    1,001

    More on subject. You have to make sure that the...

    More on subject. You have to make sure that the suc/disch serv valves hold tight and do not leak by.(give you a false reading on comp valves). Rotor lock valves are most efficient.
  14. Replies
    8
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    1,001

    I once replaced (out of the box,a new comp)on low...

    I once replaced (out of the box,a new comp)on low temp 4 dr reach in refrig w/cond unit on top in a hotel kitchen. Installed new comp and started up unit and it would not pull dn to temp. Chk unit...
  15. Thread: subcooling

    by jackmm1
    Replies
    4
    Views
    895

    HI KC8939 All condensers are designed to do 3...

    HI KC8939
    All condensers are designed to do 3 things.
    1.Desuperheat 2. Condense (from a gas to a liquid) and 3. Subcool the liquid. The purpose of subcooling is to "Insure that only liquid enters...
  16. Jason-Latent heat (known as hidden heat) takes...

    Jason-Latent heat (known as hidden heat) takes place in 2 components in the refrigeration cycle. The evaporator(latent heat of evporatization)liquid changes to a gas and in the condenser (latent heat...
  17. Replies
    10
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    1,189

    If you plan on replacing the metering device,...

    If you plan on replacing the metering device, change it over to a TXV. Make sure you have a hard start kit (Pot relay and start capacitor)installed.
  18. Thread: Superheat

    by jackmm1
    Replies
    4
    Views
    878

    Superheat is factory set at approx 10F(spring...

    Superheat is factory set at approx 10F(spring tension) and the TXV/TEV should work properly if no field adj have been made. If you want to check superheat try this.
    Example R-12 walk in box. Gauges...
  19. Replies
    11
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    1,104

    Altran, sorry about first ans.spelling of your...

    Altran, sorry about first ans.spelling of your name. More on problem.
    Now to try and ans.your questions. When using your amp meter on a common leg of a compressor you should get a reading of FLA or...
  20. Replies
    11
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    1,104

    Altron Back EMF is when a split phase...

    Altron
    Back EMF is when a split phase induction run motor on start up, induces a voltage into the start winding,this voltage opposses the applied voltage (causing an out of phase effect) also...
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