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Type: Posts; User: DPinst

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  1. 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
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    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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    2,312

    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!!!!
  5. Thread: Hvac ductwork

    by DPinst
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    440

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

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

    by DPinst
    Replies
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    440

    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...
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    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...
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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...
  9. Google, cps products "The run capacitor for the...

    Google, cps products "The run capacitor for the compressor" great article
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    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 .
  12. 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...
  14. Thread: Alberta work

    by DPinst
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    478

    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
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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.
  16. 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.
  17. Thread: pneumatics

    by DPinst
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    701

    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...
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    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...
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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 .
  21. Thread: Kablooey!!

    by DPinst
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    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
  22. Replies
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    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...
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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...
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    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...
  25. 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...
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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.
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    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...
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    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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    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...
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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...
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    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 ?
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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...
  34. 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.
  35. Replies
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    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...
  36. Thread: Ice Rink Piping

    by DPinst
    Replies
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    661

    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.
  37. Replies
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    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...
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    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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    152-A main component is Ethane and I would be...

    152-A main component is Ethane and I would be more concerned with an contacting an open flame than ODP(which is zero). Google it and read the warnings
  40. Replies
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    These valves are non adjustable,be carefull...

    These valves are non adjustable,be carefull because if you remove the cap you will lose your charge. Unfortunately they do not warn you anywhere in the units
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    Do not rule out the reversing valve just because...

    Do not rule out the reversing valve just because of age of unit.
    When unit was running did you measure the temperatures of the suction line entering and exiting the reversing valve? If you have a...
  42. Replies
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    Have seen a condensor that the water froze...

    Have seen a condensor that the water froze inside.The end result was that the water froze expanded and the condensor required replacing as it had zero water flow.
  43. Replies
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    Have you been able to varify airflow across the...

    Have you been able to varify airflow across the burner?
    You may have a air pressure switch that is not set correctly and causing you problems.
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    With DSI controls there is a lock -out if flame...

    With DSI controls there is a lock -out if flame is not sensed after a very short time( 2.5 seconds ) period. I can not be changed as it is a safety control.
    Think about what would happen if the gas...
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    Canadian gas code requires combustion air for the...

    Canadian gas code requires combustion air for the appliance.That is the purpose of the duct.There should a grill in the supply air that supplies air into the room that the furnace is in. There is...
  46. Thread: GPS in trucks

    by DPinst
    Replies
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    1,949

    GPS in trucks

    OK here we go. Contractors in Vancouver are beginning to install GPS in their vehicles. The reaction is mixed.
    What are some of ther experiences in the rest of the HVAC world ?
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    What is used to prove the combustion blower motor...

    What is used to prove the combustion blower motor is running .It is either an air proving switch or a centrifugal switch on the comb blower motor. That could be a cause of your problem. The motor...
  48. http://www.apscontrols.ca/basic%20controls%202.pdf...

    http://www.apscontrols.ca/basic%20controls%202.pdf.
    Try this link
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    Is the original unit Direct spark ignition?

    Is the original unit Direct spark ignition?
  50. Replies
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    It is scary that a fault such as a roll out...

    It is scary that a fault such as a roll out switch can be reset with out a visual inspection.As was stated before these heat exchangers are famous for rotting out.
    You did not say whether the...
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