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  1. Thread: Hvac ductwork

    by DPinst
    Replies
    3
    Views
    299

    Thank you very much for the information ,greatly...

    Thank you very much for the information ,greatly appreciated.
  2. Thread: Hvac ductwork

    by DPinst
    Replies
    3
    Views
    299

    Hvac ductwork

    Is there a website or even a book that will provide guidelines for commercial HVAC ductwork installation? An example where is the best place to install balancing dampers, max length of flex...
  3. Replies
    16
    Views
    860

    Had a similar issue in a food processing plant it...

    Had a similar issue in a food processing plant it turned out the socks were dirty. To visually inspect them they looked fine but lack of airflow pointed to restriction. Had the socks cleaned and...
  4. Replies
    15
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    822

    You need to get the Lennox OEM as other people...

    You need to get the Lennox OEM as other people have stated .You will find that lennox name plates are missleading. The motor you require for that unit is actually a 1 hp universal motor if you match...
  5. Google, cps products "The run capacitor for the...

    Google, cps products "The run capacitor for the compressor" great article
  6. Replies
    3
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    256

    How dirty is the condenser coil, also check the...

    How dirty is the condenser coil, also check the airflow across the condenser ,is the air short cycling ,is it getting enough air, you may have to cut a bigger grill for the condenser to get enough...
  7. Replies
    13
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    424

    Assuming that you are rated at 208 volts , I...

    Assuming that you are rated at 208 volts , I would look at trying to improve your voltage. You only have 86% starting torque available .
  8. So they will run the compressor at full capacity...

    So they will run the compressor at full capacity and slow the air flow down. They are anticipating an increase in Evap TD which will cause the amount of Latent heat removed ie moisture to increase...
  9. Replies
    17
    Views
    1,161

    I have always asked the customer: 1-How much is...

    I have always asked the customer:
    1-How much is one of your towers worth?What will it cost if it crashes because of overheating?
    2- How much money will you lose if your servers go down because you...
  10. Thread: Alberta work

    by DPinst
    Replies
    1
    Views
    421

    Look on UA 488 website for work in Alberta . they...

    Look on UA 488 website for work in Alberta . they have postings for both Fort Mac and Calgary,Edmonton
  11. Replies
    5
    Views
    479

    I think they may be saying that the problem is...

    I think they may be saying that the problem is with the communication cable itself ,not the type of cable.
  12. Replies
    5
    Views
    2,404

    Thank you for the reply, I am still looking for...

    Thank you for the reply, I am still looking for the slides.
  13. Thread: pneumatics

    by DPinst
    Replies
    12
    Views
    624

    In regards to heat pumps ,do they fail to heat or...

    In regards to heat pumps ,do they fail to heat or cool?
    In The great white north some of our water source heat pumps do fail to heat (Climate master ) While others fail to cool.
    Our air to air...
  14. Replies
    7
    Views
    804

    CJPwalker may be onto something. Are they using...

    CJPwalker may be onto something. Are they using flexible connectors for the gas? If so you will probably have to hard pipe the gas line. 15 years ago had a new install, that this was an issue with...
  15. Replies
    5
    Views
    703

    Check this site for information about this...

    Check this site for information about this problem. I seem to remember it had to do with positioning the motor and how the airflow was blowing the pilot flame off the flame rod.
  16. Replies
    15
    Views
    1,210

    Just make sure that the pre purge and the lock...

    Just make sure that the pre purge and the lock out timing is the same. Also make sure to match the # of times it can try for ignition. Replaced a lot of Johson with Honeywell S86 .
  17. Thread: Kablooey!!

    by DPinst
    Replies
    23
    Views
    4,699

    Hope you still have your ebrows there Karl. How...

    Hope you still have your ebrows there Karl. How are things these days at the big E
  18. Replies
    5
    Views
    2,404

    Carrier Fundamentals of refrigeration

    I have inherited an old set of Books from Carrier "Fundamentals of Refrigeration" it appears to be a home study course that came with slides ,(yes slides for you youngsters google it,it was our power...
  19. Replies
    47
    Views
    4,983

    Centrifugal switch on the ventor motor ,roll out...

    Centrifugal switch on the ventor motor ,roll out switch ,or high limit could be the reason for no power to the module. As to not lighting sometimes the spark generated by the module is incorrect and...
  20. Replies
    1
    Views
    867

    The fan control is not run throught the...

    The fan control is not run throught the Honeywell w 973 panel. It is a seperate 24 volt circuit.

    If it has a switching subbase the contacts will be # 9-10 on the subbase it will be connected to C...
  21. Usually small evaporators use fractional...

    Usually small evaporators use fractional horsepower psc motors. When you reduce the HP by changing the taps you are not reducing the input voltage.
    Get out your ohm meter and ohm out a PSC motor...
  22. Replies
    6
    Views
    954

    As mrhavacmechanic stated look into the ICM...

    As mrhavacmechanic stated look into the ICM control , make sure it is set for the type of bearings you have in the motor.
    All that will happen ,is a sleeve bearing will go to full speed for a brief...
  23. Replies
    5
    Views
    1,505

    Simulator

    THe simulator is the best option for servicing the w-973 panel.
  24. Replies
    13
    Views
    2,540

    http://www.handsdownsoftware.com/Downloads.htm ...

    http://www.handsdownsoftware.com/Downloads.htm


    By taking the entering conditions and the leaving conditions ,using the psychrometric chart you should be able to graph the ADP ,which is just your...
  25. Replies
    52
    Views
    4,490

    Try running 2nd stage as first stage and see what...

    Try running 2nd stage as first stage and see what your readings are . It may point you towards an an airflow issue.
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