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    model # 355aav042080,cnpvp3621acaaaaa,2.5 ton...

    model # 355aav042080,cnpvp3621acaaaaa,2.5 ton condensor 165a. Thanks for your help.
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    The return trunk is already 8x20 (new) and the...

    The return trunk is already 8x20 (new) and the return drop is 14x20(new) how much larger do they have to be?A additional 8x26 floor return was added to living room at bottom of staircase,to add...
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    What should be changed and what are my options?

    What should be changed and what are my options?
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    The only thing that was not changed was the...

    The only thing that was not changed was the plenum, top takeoffs and the short trunk at the right side of plenum.Everthing else is new including main trunk,return trunk,return drop and the 2 old pan...
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    Dash , Are you talking about the short trunk with...

    Dash , Are you talking about the short trunk with the take off in post #14 coming out of the plenum ,that only feeds 1 branch to 1 register?
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    ?

    ?
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    Typical boot on top of supply,due to location of...

    Typical boot on top of supply,due to location of main beam and where supplies go through floor there were not alot of options for installer.The boot rolls 90 then into another 90 out of the top of...
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    other side of coil

    5848This is a picture of the other side of the coil,no changes were made to it.That run just goes to 1st. floor living room.
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    All seams and joints were sealed with mastic. I...

    All seams and joints were sealed with mastic. I had originaly cut a 45 degree angle(see 1st.pic) into top of foundation wall, to have fitting angle down into main trunk,although when the measurements...
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    The 3X12 goes through the sill, I didn't wont to...

    The 3X12 goes through the sill, I didn't wont to remove any more sill,I did notice after he installed that last run that filter went from o % to 70%.The fitting looked kind of restrictive to me sq.to...
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    static on high is .71 , filter is a 20x25x4...

    static on high is .71 , filter is a 20x25x4 merv8, model # 355aav042080,cnpvp3621acaaaaa,2.5 ton condensor 165a. Evolution cont. Main trunk is 8x20 stepped down to 8x16 then a 3x12 that goes through...
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    pics

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    Pics

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    Static Pressure Problem?

    I have had new ducts installed and im still getting "change filter message" after a month or so,Im looking for further sugestions to resolve problem,I can provide pictures if needed.Thanks
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    Duct insulation question

    What is the best type of insulation for ridged duct in an unconditioned crawl space with conc. slab floor? Is 1-1/2 " foil backed sufficient?
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    Mechanical contractor?

    What should I be looking for when getting estimates for duct replacement and or retrofit of a old duct system to work properly with a new high eff. system. What questions would you ask and what...
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    Could anyone tell me what the seer would have...

    Could anyone tell me what the seer would have been on this old condensor Intertherm RACZB-030KAWC approx year 1987
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    I spoke with the installer last night he didn't...

    I spoke with the installer last night he didn't seem to concearned with static reading,he asked if it was heating the house ok,and said he has not had any problems with these systems.When I asked...
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    pics

    http://img253.imageshack.us/img253/9128/1020204ke8.jpg
    http://img264.imageshack.us/img264/7671/1020220pg5.jpg ...
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    Im still working on it,I have a couple of days...

    Im still working on it,I have a couple of days off from work now ,I have a call into the installer(waiting for call back).I contacted another installer who I was going to hire in the 1st. place but...
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    Any opinions?

    Any opinions?
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    Dash thanks for the info,who would be the best...

    Dash thanks for the info,who would be the best bet to work on the duct system & can any damage result from the .85 on high flame keep in mind that 2nd. stage does not come on that often.Im still...
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    I had a media filter cabinet installed with a...

    I had a media filter cabinet installed with a 20x25x4 Bryant merv 8 air filter.Who should I contact to resolve the duct condition.Im a pro auto tech for a new car dealer with vast automotive hvac...
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    The static press. was not checked on the old...

    The static press. was not checked on the old system,I had a new 8x24 return drop installed, 2 ceiling returns on 2nd.fl. 1 in each bed rm. and a low return on 1st fl. with a damper to shut of 2nd....
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    I checked the static readings on stat. Heat low...

    I checked the static readings on stat.
    Heat low 669 cfms,0.27 static
    Heat high1331 cfms,0.85 static
    A.C. 875cfm,0.48 static. Are any of these reasons for concearn,also while pushing lightly on...
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