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  1. Replies
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    It was actually the equipment manufacturer reps...

    It was actually the equipment manufacturer reps which presented it that way during product training way back when the first R410-A systems hit the market. Most of the technicians I spoke to in our...
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    Low suction pressures will cause overheating of...

    Low suction pressures will cause overheating of the scrolls and permanent damage the compressor drive bearing.

    I am therefore not a fan of this procedure.
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    Low suction pressures will cause overheating of...

    Low suction pressures will cause overheating of the scrolls and permanent damage the compressor drive bearing.

    I am therefore not a fan of this procedure.
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    Some manufacturers are using small diameter...

    Some manufacturers are using small diameter condenser tubing which makes pump down very difficult if not entirely impossible.

    I would caution about partial pump downs on R410A systems. Since its...
  5. So true! Anyone having a client which has a...

    So true!

    Anyone having a client which has a furnace with a single pipe installation and a flame sensor which fails more often then usually? Check if they store any household chemicals nearby,...
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    At the end of the day its is us technicians which...

    At the end of the day its is us technicians which make a recommendation for our clients to choose one unit over another. Most of the time there are only neglect able nuances why we prefer a certain...
  7. Very good point. So many times I see furnaces...

    Very good point.

    So many times I see furnaces installed with only the combustion exhaust pipe connected and drawing combustion air from inside the house. That will slightly depressurize the house...
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    That is one option. The other is taking a...

    That is one option. The other is taking a hydronic fan coil unit and adding a evap coil. Still hoping to find a unit which incorporates it all.
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    Thank you for the reply. The cabin is good (front...

    Thank you for the reply. The cabin is good (front return) but instead of electric heat we have to have a hydronic coil.

    My supplier has all the specs and pictures and exhausted his search, hence I...
  10. We do have a substantial amount of clients with...

    We do have a substantial amount of clients with medical conditions which includes immune deficiencies, pulmonary disorders,...

    As far as the mechanical part of improving indoor air quality we...
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    Good old Heat Seal equipment awakes some...

    Good old Heat Seal equipment awakes some memories. Vacuum was so strong that when the hose got attached to a wall you could hardly get it off!

    Interestingly enough the vacuum really doesn't do...
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    More specifically only use aluminum snap lock...

    More specifically only use aluminum snap lock which has a better heat retention and therefore reduces condensation and ultimately lint build up. Important to avoid screws to connect several lengths...
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    Below is my personal experience and there might...

    Below is my personal experience and there might be technicians out there which have a better ride with their products.

    I put in more then 20 units from the first right up to their third generation...
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    Thanks, forum rookie here and no worries about...

    Thanks, forum rookie here and no worries about being a tech or not I got my sore knees and back to proof it.

    I saw the AWUF and again they have bottom return. I am looking for front return.
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    You guys are hilarious! I just proved you wrong....

    You guys are hilarious! I just proved you wrong. Contractor since over 20 years in business (never advertised) and loving it. Don't know why you are insulting our trade by claiming that we can't...
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    Really? How do you possibly come to that...

    Really? How do you possibly come to that conclusion by just reading what I wrote?

    I don't believe that by answering your rudimentary question about sizing a system would give you anymore clues if...
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    Goodman AH1824-1

    I am in the process of replacing a.m. obsolete air handler and wonder which current products are closest to the existing units dimension and are also front return design.

    I need to keep the duct...
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