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Type: Posts; User: MXF9283

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    Commercial HVAC Return Duct Sizing

    Thanks in advance to anyone who can offer some insight to the issue I am having.

    I come from a mostly residential HVAC background and am fairly new to the commercial side of things.

    I should...
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    Thanks to all for your help with this. Does...

    Thanks to all for your help with this. Does anyone know where specifically in the code it talks about venting for oil furnaces?
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    Currently it does run through the chimney. The...

    Currently it does run through the chimney. The homeowner is adamant that he would like to avoid this if it can be done. I can't seem to find specifically in the code where it talks about venting out...
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    Oil Furnace Venting

    Does anyone have any experience venting an oil furnace out through the side of the crawlspace? Do you use galvanized single wall pipe and a power vent fan? If so have you had any issues with...
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    Many thanks. It is a Lennox 14hpx heat pump, only...

    Many thanks. It is a Lennox 14hpx heat pump, only 6 months old.
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    Loud noise from heat pump

    I am having a heat pump issue also. This morning my heat pump made an ungodly loud noise. I called someone who told me that this was just the unit going into defrost mode. The sound the unit made was...
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    Honeywell HZ432 and Lennox

    We are new to installing wireless thermostats and zone systems. Has anyone else had an issue with a hz432 zone board getting the heat strips to come on in a Lennox split heat pump? Wireless...
  8. Thread: Motor Question

    by MXF9283
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    Motor Question

    I was curious about using a two stage compressor outdoor unit with a new furnace. Do these outdoor units require a true variable speed motor or will an X13 motor work?

    How about a two stage...
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    Comfortmaker Furnace

    GA12248C19OB200584

    Can anyone make any sense out of the above model number for a furnace?
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    My apologies. I'm new to this site and can't...

    My apologies. I'm new to this site and can't figure it quite out yet.
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    I live in Greenville SC

    Hey does anyone have any thoughts on if I should have my outdoor heat pump unit secured to a reinforced concrete pad? I had someone tell me the unit should be on a reinforced concrete pad with...
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