Search Results - HVAC-Talk: Heating, Air & Refrigeration Discussion

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Type: Posts; User: idruthrbfishin

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  1. Replies
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    Which of these are direct drop in replacements?

    Which of these are direct drop in replacements?
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    R-22 replacements

    I was wondering what how well the R-22 replacement refrigerants work. I have a walk in cooler at my cabin which developed a leak at a flare over the summer and rather than shelling out the dough for...
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    neither, it has a cap tube.

    neither, it has a cap tube.
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    The spray foam is VERY good insulation, which...

    The spray foam is VERY good insulation, which might explain the higher cost. I heard once that 1" of it provides as much R value as 5" of fiberglass. It sounds like that along with the Durovent...
  5. That is pretty fast to have developed a mold...

    That is pretty fast to have developed a mold issue. I wonder if something might have gotten spilled on it? Maybe even at the factory?
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    Ran unit all day long in an empty aptmt. Ran...

    Ran unit all day long in an empty aptmt. Ran fine, kept room at 72* with compressor cycling on and off, but suction pressure (R-22) is 85PSIG! That is factory charge, no one has added any...
  7. Check the fan wheel and the back side of the...

    Check the fan wheel and the back side of the evaporator. I have seen some pretty funky stuff growing on some of these units even if there is only a small amount of humidity in the room. Sometimes...
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    It is a model PDAA. The evaporator and condenser...

    It is a model PDAA. The evaporator and condenser were both filthy, I cleaned them both with Nu-Brite and bench tested it. It ran, but I was only getting 13* delta T across the evap. That is setting...
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    Just remember, staple the durovent between the...

    Just remember, staple the durovent between the rafters, then apply your insulation. BTW, if you are not going to use the space above the ceiling, why not just insulate the bottom side of the truss, ...
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    The home improvement centers sell a really neat...

    The home improvement centers sell a really neat product that staples between your roof trusses on the bottom side of the roof sheeting. They are called Durovent Foam Rafter Vents. (thats the brand...
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    You can't put insulation up against the bottom...

    You can't put insulation up against the bottom side of your roof sheeting. You need to allow for ventilation on the underside of your roof. If you don't, the heat will build up so much that it will...
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    Mcquay PTAC

    Mcquay PTAC: compressor runs for a while, seems to be cooling, then compressor shuts off and digital display starts flashing "LA." Could it be a Thermistor problem? Charge may also be slightly low...
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