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  1. Yes pecmsg that could be a very large heat...

    Yes pecmsg that could be a very large heat pump.The OP does not give much information as to CFM that is being supplied or what he has available for an energy source.He

    says an option is electric...
  2. Depending on how much CFM you require. Electric...

    Depending on how much CFM you require. Electric pre heating could get very expensive. Could you not use a Heat pump to pre heat the air with electric back up heat? Installing a small hydronic system...
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    Just have to google myth buster "Exploding hot...

    Just have to google myth buster "Exploding hot water tank" to see what can happen . .
  4. Replies
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    If you suspect power problems ,you might want to...

    If you suspect power problems ,you might want to ask them if they have problems with their TV or computers . Just a thought
  5. Is the fuse blowing because of a short or because...

    Is the fuse blowing because of a short or because of too much current draw. I see in your post that you have disconnected the cooling and the fuse still blew ,what else in the circuit may draw ...
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    Sorry Timebuilder ,realized my mistake. Thank you...

    Sorry Timebuilder ,realized my mistake. Thank you for pointing out I violated the rules!
  7. Replies
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    2,659

    Can somebody say oil trap!!!!!

    Can somebody say oil trap!!!!!
  8. Replies
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    3,102

    Check polarity of the power supply ,black is is...

    Check polarity of the power supply ,black is is hot white is neutral and polarity of the transformer
  9. Replies
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    809

    What you are looking for is the definition of...

    What you are looking for is the definition of condenser Temperature difference or condenser td. Remember temperature and pressure in a refrigeration system go hand in hand with each other ,increase...
  10. You do not mention the voltage at the solenoids...

    You do not mention the voltage at the solenoids or output from the transformer when all solenoids are energized. If you have a no load voltage of 24 volts ,what is it when all solenoids energized?...
  11. Replies
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    I have an old article at work that explains the...

    I have an old article at work that explains the reason for the heater. I will try to find it tomorrow. But it states when outdoor ambient reaches a certain temperature the element is energized, to...
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    What is your inlet gas pressure ?

    What is your inlet gas pressure ?
  13. Replies
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    Looks like Wye Delta starter with dash pots for...

    Looks like Wye Delta starter with dash pots for overloads,looks amazing
  14. Replies
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    1,315

    https://customer.honeywell.com/resources/techlit/T...

    https://customer.honeywell.com/resources/techlit/TechLitDocuments/60-0000s/60-2082.pdf

    Here is the webpage ..
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    You do not say anything about gas pressure, or...

    You do not say anything about gas pressure, or regulators? That is about all the info you are going to get on an open Forum.
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    Het Ammar you forgot the A on the end of...

    Het Ammar you forgot the A on the end of Canada. :grin2: Just a bit of Canadian humor from the west coast!!!!
  17. Thread: Hvac ductwork

    by DPinst
    Replies
    3
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    837

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

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

    by DPinst
    Replies
    3
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    837

    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...
  19. Replies
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    2,262

    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...
  20. Replies
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    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...
  21. Google, cps products "The run capacitor for the...

    Google, cps products "The run capacitor for the compressor" great article
  22. Replies
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    615

    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...
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    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 .
  24. 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...
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    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...
  26. Thread: Alberta work

    by DPinst
    Replies
    1
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    724

    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
  27. Replies
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    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.
  28. Replies
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    Thank you for the reply, I am still looking for...

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

    by DPinst
    Replies
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    1,442

    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...
  30. Replies
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    1,411

    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...
  31. Replies
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    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.
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    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 .
  33. Thread: Kablooey!!

    by DPinst
    Replies
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    6,718

    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
  34. Replies
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    3,039

    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...
  35. Replies
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    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...
  36. Replies
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    1,231

    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...
  37. 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...
  38. Replies
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    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...
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    Simulator

    THe simulator is the best option for servicing the w-973 panel.
  40. Replies
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    3,951

    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...
  41. Replies
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    6,523

    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.
  42. Replies
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    843

    Emerson Motor pro training

    They used to have this on their website ,but now I am unable to find it ,If I google it it takes me to US motors and they say it will be up and running soon.
    Is it still available ? I find it very...
  43. Replies
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    Corner Ground

    Corner ground !!!
    That is the first explanation of this voltage reading that make some sense.
    Have had some older buildings that you read your meter and have to take a second look because you do...
  44. Replies
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    2,666

    What kind of system is it on? Is there dampers...

    What kind of system is it on? Is there dampers that open or close causing a reduction in static pressure ?
  45. Replies
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    http://www.journalofcommerce.com/article/id33548...

    http://www.journalofcommerce.com/article/id33548

    This article may be of interest to ,instead of using the well water you may be able to extract the heat from the sewage pond. Trane has developed...
  46. Replies
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    That is the reason why DRIP legs are installed to...

    That is the reason why DRIP legs are installed to trap any dirt or oil in the piping. As Rieck-Tech2 said somebody got carried away with the cutting oil when he was threading pipe.
  47. Replies
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    5,177

    In some older parts of the city used to see the...

    In some older parts of the city used to see the same issue with water in gas lines. This was due to the line pressure being below below 7" w.c. and piping buried below ground to meet code. If you...
  48. Thread: Ice Rink Piping

    by DPinst
    Replies
    2
    Views
    797

    Ice Rink Piping

    There was a link for piping for ice rinks posted a while ago. I have lost the link and was wondering if anybody remembers what it was. Any help would be appreciated.
  49. Replies
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    1,668

    In Canada the rules regarding purging with HCFC...

    In Canada the rules regarding purging with HCFC are very clear you can not. As what was also pointed out the cost of r-22 and if you are brazing you should be purging with nitrogen. You should have...
  50. Replies
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    3,980

    1,1-Difluoroethane is an organofluorine compound...

    1,1-Difluoroethane is an organofluorine compound with the chemical formula C2H4F2. This colorless gas is used as a refrigerant, where it is often listed as R-152a or HFC-152a. As an alternative to...
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