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  1. #1
    Join Date
    Jan 2011
    Posts
    604

    Old G10 replacement

    Old Lennox replacement. Believe that coil of 1/4" line worked as a metering device back in the day?

    No pictures of the outdoor, just a 15 seer 4ton condenser, got dark on me!












    Flame away ha!

  2. #2
    Join Date
    Dec 2002
    Location
    SouthEast NC ICW & Piedmont Foothills
    Posts
    7,635
    nice work.

    you even took old fat service techs into consideration by lifting it off the floor some.

    bless your heart.
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  3. #3
    Join Date
    Jan 2011
    Posts
    604
    Quote Originally Posted by dandyme View Post
    nice work.

    you even took old fat service techs into consideration by lifting it off the floor some.

    bless your heart.
    I do that so I can pull air from the side and bottom of the furnace. Does help for the service some though!


    Quote Originally Posted by SBKold View Post
    Why'd you make the return drop smaller?
    The old return drop was 18x22, out of a 36x8 duct. New is 26 1/2x12. It is still plenty big. 26 1/2" is what fits our filter boxes, so I use that width usually.

  4. #4
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,048
    Why'd you make the return drop smaller?

  5. #5
    Join Date
    Aug 2006
    Location
    Panama City, FL
    Posts
    739
    I'm in love with your ref piping!
    It's all worthy of the wall! Nice work.

    I wish we had basements or proper mech closets. We have about 6" on either side of the unit in 85% of installs.
    You can't learn a thing with your mouth open.

  6. #6
    Join Date
    Apr 2004
    Location
    MN
    Posts
    1,801
    Did you bend an offset in the condensate line from the evaporator? Or is that an optical illusion? If so, how did you do it?
    A Veteran is a person, who at some point in their life, wrote a blank check payable to the United States of America for payment up to and including their life.
    Gene Castagnetti-Director of the National Memorial Cemetery of the Pacific in Hawaii

  7. #7
    Join Date
    Jan 2011
    Posts
    604
    Yes I did. I do that a lot. Heat, use a heat gun or my mapp torch. It will go limp, then you just hold how you want it while it cools. Works slick.

  8. #8
    Join Date
    Jul 2009
    Location
    Columbia, MD
    Posts
    3,980
    I've used a turbo torch to bend 3" pvc for a pool. Never on 3/4". Good idea though. The job looks sweet though.

    One thing, Don't you need a relief piped in the condensate?

  9. #9
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,048
    Quote Originally Posted by gravity View Post
    I've used a turbo torch to bend 3" pvc for a pool. Never on 3/4". Good idea though. The job looks sweet though.

    One thing, Don't you need a relief piped in the condensate?
    Some people say your stuff gets picked apart and I'm not trying to be that guy.

    But gravity makes a good point and wonder what your thought of positive air pressure in evap condensate against negative pressure in fau?

    The cond line is very short and sweet but condensate from coil in cooling could fill hx in fau?

    Oh and ive got some pictures to get online from this month......so I'm sure there is plenty for me to get beat up over.

  10. #10
    Join Date
    Jan 2011
    Posts
    604
    Quote Originally Posted by SBKold View Post
    Some people say your stuff gets picked apart and I'm not trying to be that guy.

    But gravity makes a good point and wonder what your thought of positive air pressure in evap condensate against negative pressure in fau?

    The cond line is very short and sweet but condensate from coil in cooling could fill hx in fau?

    Oh and ive got some pictures to get online from this month......so I'm sure there is plenty for me to get beat up over.

    I understand what you are saying. The drain for the furnace comes out in a 1/2" cpvc street 90. It is slid inside the 3/4" pvc 90. There is an air gap around it. So if the drain does back up, it will flow out around that fitting rather than into the furnace. Picking up what I am laying down?

  11. #11
    Join Date
    Feb 2009
    Location
    Tallahassee, FL
    Posts
    6,048
    Quote Originally Posted by jimmyed View Post
    I understand what you are saying. The drain for the furnace comes out in a 1/2" cpvc street 90. It is slid inside the 3/4" pvc 90. There is an air gap around it. So if the drain does back up, it will flow out around that fitting rather than into the furnace. Picking up what I am laying down?
    What about the positive air pressure?

  12. #12
    Join Date
    Jan 2011
    Posts
    604
    It will blow out around the fitting? The 2 are not glued or even a tight fit. Never had a drain issue and have done a ton of these the same way. There is a trap inside the furnace on the collector box. No pressure or vacuum there.

  13. #13
    Join Date
    May 2012
    Location
    Upper Michigan
    Posts
    3,588
    Looks great, we have a plastic conduit bender, basically a box with heat elements, works good.

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