System Efficiency - Page 3
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  1. #27
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    You do this on all Maintenances or each service call?
    If you get a call for a No Cool what do you do?

  2. #28
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    On every Job

    Quote Originally Posted by anacdoctor View Post
    You do this on all Maintenances or each service call?
    If you get a call for a No Cool what do you do?
    What do you think I do? I fix the problem. Thats what I am getting pad to do. Not to check systems efficiency.

  3. #29
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    Quote Originally Posted by 21degrees View Post
    What do you think I do? I fix the problem. Thats what I am getting pad to do. Not to check systems efficiency.
    If you added LIDWB and CFM, you could easily check capacity, and with amp draw you could determine the system efficiency.
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    How many times must one fix something before it is fixed?

  4. #30
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    You have given a list of what you do.
    All I am asking is, the items you have listed, do you do all of those things at each service call?

  5. #31
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    Yah but I am not there to check capacity of unit. Beenthere you are turning a 1.5hour service call into 2 hours+. I feel that with the test I do it should be more than sufficient. What will efficiency and capacity tests do for consumer and I don't think they will go for the extra .5 to 1hr of tests.

  6. #32
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    With everything else you listed that you check. The LIDWB, and condenser amp draw and a little math, doesn't add more then 10 minutes.

    That gives you capacity at the air handler, and a good idea if its near its rated efficiency.

    If the complaint is its not keeping up, this is valuable info.
    It also comes in handy if your customer wants to know if a new unit will really save them money.

    If you have ten calls to run in a day, it makes it impossible to do it, and get done in 16 hours.
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    How many times must one fix something before it is fixed?

  7. #33
    The seer rating can be taken on a running unit. The system is plotted on a pressure enthalpy chart. After that several system parameters are calculated and these parameters are run thru some more calculations to give the seer rating. I would say it is not worth the money to have done on a small unit. If the unit is properly maintained it should be close to its seer rating. In fact if you live in a cooler area, say midwest. Then it will probably run at a little higher seer rating than say in arizona. The seer rating you see when buying the unit is the min it should run at when new.

  8. #34
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    From one visit.
    The best you can do, is an EER at the time you tested. Not SEER.
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  9. #35
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    I do 6 calls a day. They could be all service or sales and service. I then have maybe time to check on Installers and answer calls or emails. This is done 5 Days a week and sometimes I get home at eight. I am losing calls like crazy now. To me it is not a necessary thing on most calls.

  10. #36
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    Quote Originally Posted by 21degrees View Post
    To me it is not a necessary thing on most calls.
    May not be.

    Maybe you need to also hire a salesman.
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  11. #37
    From the information I have seer = eer x 1.1 (low end) and seer= eer x 1.3 (high end).

  12. #38
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    If you do it right. Its tested (calculated) at 5 different OD temps.
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  13. #39
    I assume you then take tha avg of that and you have your seer rating. That does sound more accurate. I think the premise in the book I read was if the seer rating fell in between the range they give you the unit was performing ok.

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