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Type: Posts; User: lynn comstock

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  1. Replies
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    Don't feel bad about changing the compressor....

    Don't feel bad about changing the compressor. Whatever is blocking the muffler is probably debris from a mechanical compressor failure. It sure wasn't chewing gum.
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    Test: Find a way to bubble some air in your home...

    Test: Find a way to bubble some air in your home through some distilled water for a day or two. Then test the PH of the water. The test may need to be repeated if the source is on again - off again...
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    Getting into the trade would make a good new thread

    I have trained dozens of techs over the years. I have hired many promising losers along the way. Attitude is the key to unlocking aptitude. Never stop learning.
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    Me too. I have seen this in food storage (walkins...

    Me too. I have seen this in food storage (walkins and refrigerators) in restaurants. Especially where lemons and onions were stored in open containers. (Environmental.)
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    Interesting. The Ford evaporator is probably an...

    Interesting. The Ford evaporator is probably an all aluminum coil and the irritant is the flux used to bond the aluminum to itself during manufacturing: Chemical: Aluminum Potassium Fluoride In...
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    Collect some powder and have it chemically...

    Collect some powder and have it chemically analyzed if you are serious. With mass spectrometry it doesn't take much of a sample.
    http://en.wikipedia.org/wiki/Mass_spectrometry
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    Who knows? Something is going on. For all I know...

    Who knows? Something is going on. For all I know contamination may be from outside. Air conditioning equipment installed near the ocean corrodes badly because of sea salt in the air from ocean water...
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    I have used 3/8" and 1/2" ferule compression...

    I have used 3/8" and 1/2" ferule compression unions on refrigerant discharge lines at 400 psi without an issue. I would be shocked if these unions would fail or leak at 150 psi.
  9. Check with the local code enforcement officials....

    Check with the local code enforcement officials. The free space needs to be such that firemen do not have to crawl over the equipment to get around the house. It is a safety issue.
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    That is certainly possible for the coil itself....

    That is certainly possible for the coil itself. The manufacture should know. The metering device needs to be designed for R22.
  11. Are you sure that the HX is downstream of the...

    Are you sure that the HX is downstream of the evaporator? If so, it may be made of stainless steel. That works.
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    A common source of chemical contaminants is...

    A common source of chemical contaminants is cleaning products. If you are using a commercial cleaning service, their products are often "stronger" than products used in homes because they save time....
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    No change in noise with the grilles off tells me...

    No change in noise with the grilles off tells me the noise is mechanical and carried on the "wind". Since noise diminishes with distance, the furthest vents are quietest.

    The ECM motor that you...
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    Normal oxidation of aluminum creates an invisible...

    Normal oxidation of aluminum creates an invisible protective coating on the aluminum.

    Check the white corrosion of aluminum info at http://1st-coating.com/corrosion_alloys.htm.

    Chemical...
  15. The dirt and "mold" show that this system could...

    The dirt and "mold" show that this system could use better filtration or filter serviceing after replacement. Lots of air handers have draw through coils.

    The real concern here is the sweating...
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    The fact that the Payne dealer did not advise you...

    The fact that the Payne dealer did not advise you that the 15 SEER unit will not acturally deliver 15 SEER troubles me.

    Other than that, it is almost a coin toss. Try it.
    If you don't like the...
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    Sounds like the local contractor who is working...

    Sounds like the local contractor who is working for this big box company is doing a very professional job. Check for reports on that contractor rather than the big box company. Good luck.
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    I think the noise is mechanical in origin rather...

    I think the noise is mechanical in origin rather than caused by airflow velocities.
    The blower motor bearings may be the source of the sound. It happens.
    Sound insulation is installed inside of...
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    If these regulators are at the meter, the utility...

    If these regulators are at the meter, the utility is responsible.
    1st case is not piping based on history, but the gas pressure should be checked at the regulator to be certain. Debris from the...
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    I once serviced a system on an office. A mouse...

    I once serviced a system on an office. A mouse had a nest in the blower wheel. The ceiling grilles caught most of the mouse parts. IAQ.
  21. I found no information in the specs that is...

    I found no information in the specs that is useful for duct design and no extended performance ratings. Apparantly you live in Canada as the product is not distributed in the USA.

    I don't see how...
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    It really depends on the peak load capacity of...

    It really depends on the peak load capacity of the utility. Cutting AC load reduces peak load and makes the utilities more profitable. Why? Because peak loading consumes the most expensive...
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    New construction gets inspected when there is a...

    New construction gets inspected when there is a water and electrical hookup.
    In our area (AZ) most replacement equipment is not inspected because contractors do not get permits. I imagine that this...
  24. Next time, use an 8 foot ladder.:grin2:

    Next time, use an 8 foot ladder.:grin2:
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    Too small a differential between on and off is...

    Too small a differential between on and off is not likely to damage the thermostat.
    Pity the compressor and contactor if the on and off cycles go staccato. With luck the fuses will fail first.
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