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Type: Posts; User: glockdoc

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  1. Replies
    7
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    1,798

    Around here, a non-fused switch is used for the...

    Around here, a non-fused switch is used for the 120v feed to the furnace/air handler. That circuit should already be protected by a 15 or 20amp breaker.

    As far as the GFCI, I would be concerned...
  2. Replies
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    4,808

    Was the evap coil replaced with the condenser...

    Was the evap coil replaced with the condenser unit? How old?
    When was the last time evap was cleaned?
    Is it a fixed (cap tube, piston) or a TXV?

    Make sure indoor vents are open. Too many closed...
  3. Replies
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    179,739

    I have always questioned how much air a turbine...

    I have always questioned how much air a turbine can actually move. They seem to be nothing more than a circular propeller sticking up in the air. Now if there was a small fan blade on the other end...
  4. Replies
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    2,959

    Manual J will definitely get you thinking about...

    Manual J will definitely get you thinking about building construction methods/techniques as they relate to energy conservation. If you are willing to invest the time it should more than pay for...
  5. Replies
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    2,718

    And vice-versa.

    And vice-versa.
  6. Replies
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    3,957

    Might as well measure the discharge line temp...

    Might as well measure the discharge line temp close to where it comes out of the compressor.
  7. Replies
    30
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    3,957

    [

    [
  8. I know that TX and FL reciprocates with GA but...

    I know that TX and FL reciprocates with GA but not sure about SC. Try checking out GA website to see what they say.
  9. Replies
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    2,718

    Now that Obama will keep sending me my...

    Now that Obama will keep sending me my unemployment check I wouldn't either. However, if my little Suzy was hungry I would rethink that one.

    my little Suzy
  10. Burnt start wind wire using hard start kit

    30yr old Rheem builder grade (El Cheapo) condensing unit, 4ton.

    A hard start kit was added last summer as a preventative maintenance thing. I believe it was one of the better Supro units. Anyway,...
  11. You might want to install an access fitting on...

    You might want to install an access fitting on the suction line at the evap and then compare it to the suction pressure near the compressor. Might give you an idea if you have a restriction or...
  12. Replies
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    38,775

    For what's it worth, an ECM motor is also a very...

    For what's it worth, an ECM motor is also a very expensive motor when compared to the proven, simple, been around for ever, induction motor. About 7X more expensive.
  13. Replies
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    Just to be clear, we are talking about changing...

    Just to be clear, we are talking about changing the size of the heat exchanger but the expansion device is still precisely matched to the compressor/condenser capacity.
  14. Replies
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    1,545

    Both switches are important bells/whistles that...

    Both switches are important bells/whistles that are normally found on the deluxe units. As a slumlord I consider the high psi switch more important but the low psi is also of value. These switches...
  15. Replies
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    3,728

    Still trying to get a handle on compression ratio...

    Still trying to get a handle on compression ratio with respect to refrigeration. On an internal combustion engine, compression ratio is maximum cylinder volume divided by minimum cylinder volume....
  16. Replies
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    3,728

    I was actually surprised at the thickness of the...

    I was actually surprised at the thickness of the shell on the old recip compressor. Chewed up most of the cutting wheel to get it open. It would make one hell of a "pipe bomb".

    On a hot day...
  17. Replies
    38
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    3,728

    Correct, no doubt it will not be a 13SEER system,...

    Correct, no doubt it will not be a 13SEER system, but they are right back to where they were before the old compressor took a crap, at a minimum cost. Not sure about any 8SEER still out there, 10SEER...
  18. Replies
    38
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    3,728

    A few more points before this thread goes away. ...

    A few more points before this thread goes away.

    A properly installed R22 unit, for the most part, should never need any freon added during its life.

    In TX, condenser change outs are common...
  19. Replies
    3
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    885

    Crushed suction line

    Older (approx 30yr) Rheem 10SEER a/c unit, 3.5 ton.

    Recently, during residing, discovered the suction line had been crimped down to approx half of its 3/4" diameter. Probably happened when the...
  20. That is true this week but what about next week...

    That is true this week but what about next week or next month or next year. Right now, most electric generation uses nat gas so if gas someday goes thru the roof then electric rates should follow...
  21. I have a similar situation but deciding is a...

    I have a similar situation but deciding is a little easier. I have a 3.5 and a 4 ton unit still in service going on 30 yrs, Rheem units that NPC installed when they built the houses. NPC didn't go...
  22. Replies
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    4,474

    Until such time the lint build-up catches on...

    Until such time the lint build-up catches on fire. A fire starting in the dryer vent is one of the more popular ways of burning down a house. Dbl wall pipe is probably not overkill.
  23. Replies
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    4,132

    Sounds like the house is fairly well...

    Sounds like the house is fairly well sealed/insulated but other heat generating sources within the home must be considered. Figure on every BTU generated by the house chef on the stove/oven or all of...
  24. Two big beer boxes in a Wal-Mart parking lot...

    Two big beer boxes in a Wal-Mart parking lot built/insulated exactly the same way and have the exact same heat gain down to a gnat's rectum. Box #1 has a 2t unit that runs continously but maintains...
  25. another car analogy (but its not perfect)

    two exact same cars travel 100 miles. Car #1 drives there at a steady 40mph and gets there in 2.5 hrs. Car #2 goes like hell at 100mph but he stops to have a beer every few miles and gets to the...
  26. recycling the condensate

    how about this. reroute the condensate drain to drip over the liquid line where it comes out of the coils and from there let it overflow to drip on the hot gas line out of the compressor. the energy...
  27. Replies
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    1,972

    Why did the fan stop running? Was it because of a...

    Why did the fan stop running? Was it because of a low voltage caused by the short? Or did a dead fan motor cause the compressor to overheat. You might want to invest in a second opinion before...
  28. Replies
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    2,525

    TPoz, So what did you figure out. Will you...

    TPoz,
    So what did you figure out. Will you pursue the HVAC trade?
  29. Replies
    16
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    1,707

    I've always heard that heat pumps really start to...

    I've always heard that heat pumps really start to peter out around 45 but the newer stuff may be better. The minute those resistance heat strips kick on there goes about a years worth of energy...
  30. Replies
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    Had a wallbanger once that the fan would run...

    Had a wallbanger once that the fan would run normal until the compressor kicked on and then the fan would turn backwards. It had one of those combo run caps and one side of the cap had burned and...
  31. Replies
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    1,707

    Assuming your house is plumbed/available for...

    Assuming your house is plumbed/available for natural gas, why are you considering a heat pump?
  32. In most states the contractor license number...

    In most states the contractor license number should be displayed on the vehicle. Includes electricians, plumbers, HVAC, etc, anyone with a state contractor's license. Guess it doesn't keep someone...
  33. Replies
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    2,845

    Back in the old days people would add storm...

    Back in the old days people would add storm windows to get the double pane effect. Not as efficient but a lot cheaper. Another trick for windows is to use plastic and tape to make a crude double...
  34. Replies
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    2,845

    Here's another consideration. If you like to bake...

    Here's another consideration. If you like to bake a lot of cookies, cakes, etc realize that just about all of the heat/BTUs going into that oven or stovetop eventually has to make its way thru the ac...
  35. Some of us in TX run wall bangers to get thru the...

    Some of us in TX run wall bangers to get thru the nite and then during the day hang out at Wally World, riding around on one of those electric carts. At least until I find another job.
  36. Replies
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    2,845

    As outsides temps go higher, that ac unit needs...

    As outsides temps go higher, that ac unit needs to work harder to get the same job done. 100 in IAH is not normal and sounds like your unit just can't keep up. If you believe 100 is becoming the...
  37. I'll bet somebody was "maintaining" the girls. ...

    I'll bet somebody was "maintaining" the girls.

    If it's always been a rental there's a very good chance that the indoor and outdoor coils have never been cleaned since installation. Slumlords don't...
  38. you might consider an attic ventilation fan. they...

    you might consider an attic ventilation fan. they don't use much KW but they move a lot of hot air. be sure to have plenty of soffit vents or it may actually suck air out from the conditioned space....
  39. Replies
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    3,930

    ???

    ???
  40. Replies
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    high psi, low psi cutout recommendations

    I have a few rent houses that I would like to make idiot/tenant proof as much as possible. I installed a builder grade Goodman condenser last year in one of them and want to add encapsulated high...
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