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  1. I've worked on these water source heat pumps and...

    I've worked on these water source heat pumps and I have found that even if the the stat is calling for cooling and you have 24volts at y and g I always have 15-18 volts at w not sure why but the unit...
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    How to balance airflow in duct system ?

    Can someone help me out with this situation? I would like to balance a 2 storey home with a new duct system. What tools should I use, Anemometer ? Is this the easiest or is there better ways on doing...
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    Compressor contacts

    Today I was checking contactors on a rack. They were controlling Carlyle compressors which only gave me an LRA of 120. Is a rule of thumb divide by 7 and that should be your RLA? With this...
  4. Thread: lack of exhaust

    by lemon
    Replies
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    551

    that was my original problem lack of exhaust flow...

    that was my original problem lack of exhaust flow through kitchen exhaust hoods. The the pressure switch wasn't making and it wouldn't keep the unit running, i'm assuming that it only stays on for a...
  5. To me, what this sounds like is you had to change...

    To me, what this sounds like is you had to change the HSI because it was cycling. If you are having a venting pressure problem there is a list of cause that may happen even though there is nothing in...
  6. Thread: lack of exhaust

    by lemon
    Replies
    6
    Views
    551

    lack of exhaust

    I was wondering if anyone could lead me in the right direction on finding info on MAUs. Never really worked on them before and they are kinda new to me. Books, websites, links would be a great help....
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    How to find what type of refrigerant

    I was working on a small reach in cooler unit/prep table and i didn't know what type of refrigerant to use. Ant ideas. Is it something to do with head pressure and ambient air?:o
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    Anything would help!!:)

    Anything would help!!:)
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    1,781

    I've recently started with a new company and the...

    I've recently started with a new company and the jump was well worth it.
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    Economizers-How to?

    I've been doing alot of maintenance on roof top units and i was wondering how to properly check the economizer. What I've been noticing is that there is a temperature control, that controls the...
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    doesn't matter about what kinda fuel i use

    Here in manitoba we produce our own elecricity. Gas and electricity are about the same price. In the long run electricity might even be cheaper for us than nat gas. So i think i'm going to go with a...
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    Hot water tank vs. Inline water heater

    Right now we have a 40 gallon gas water tank (36 000 btuh) it puts out hot water for about 30 to 40 minutes and then goes cold. What i would like to do is change my gas water tank to a electric tank...
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    I guess that answers my question. Thanks

    I guess that answers my question. Thanks
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    looking to go commercial

    I'm working in the residential HVAC field and love it. The only thing, is that the money isn't all their. I'm a 3rd level refrigeration apprentice and would like to know my options. thanks..
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