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  1. #14
    Looks good from here! Just one thing though. Maybe it's my computer, I can't see any primer on your PVC piping.

  2. #15
    Join Date
    Jan 2011
    Posts
    626
    Clear primer.... purple stuff looks like crap.

  3. #16
    Join Date
    Jul 2005
    Location
    Southern California
    Posts
    596
    Line set looks fantastic.
    Knowledge is knowing that a tomato is a fruit. Wisdom is knowing not to put it in a fruit salad.

  4. #17
    Join Date
    Apr 2013
    Location
    NJ
    Posts
    29
    Why do you put the Liquid Line Drier on the in side by the Evap?

  5. #18
    Join Date
    Jan 2011
    Posts
    626
    Quote Originally Posted by njbiker66 View Post
    Why do you put the Liquid Line Drier on the in side by the Evap?
    So it doesn't turn into a rusted mess outside, or rust thru and leak.
    Why not put it inside? That much closer to the metering device, which you want to "filter" what goes thru it.

  6. #19
    Join Date
    Apr 2013
    Location
    NJ
    Posts
    29
    Makes sense to me. I have never worked on residential units/ smaller split systems. Looks really clean that way. Also I like the idea of the two zones and heat pump with gas back up.

  7. #20
    Join Date
    Jan 2011
    Posts
    626
    We do a ton of hybrid systems like this. Sell more heat pumps than a/c's

  8. #21
    Join Date
    Sep 2012
    Location
    Missouri
    Posts
    88
    1st class!!

  9. #22
    Join Date
    Jan 2009
    Location
    Keokuk, IA
    Posts
    5,520
    Quote Originally Posted by BaldLoonie View Post
    Hmm, I imagined that LP use

    That right furnace obviously was small. Does the furnace cycle on discharge stat if running on high for that zone? Can't imagine there's a duct system big enough for what that 95% furnace will need to move. Or does the other damper open to bleed air to the main zone?

    Inifnity doesn't use a discharge temp. It knows internally based on equipment what the minimum airflows are in each stage. For heat pump and AC, it also factor in outdoor temperature (system capacity) to determine comfort airflows.

    If it's a 60k furnace, it only needs about 1020 CFM on high stage depending on static pressure. The Modulating 60k furance gets by with 970CFM on high stage and 40% capacity on low stage is just 330CFM. Low stage on a 2 ton heat pump is 300CFM minimum. But it prefers 370-490 depending on outside air temp based on my observations.

    Yes, I'm a very very big Infinity fan... 2 systems in my house and can't wait to add zoning some day to one or even both of them.


    That's one of the coolest downflow 2 zone installs I've ever seen.

  10. #23
    Join Date
    Jan 2011
    Posts
    626
    Thanks!

  11. #24
    Join Date
    Feb 2013
    Posts
    9
    Impressive!

  12. #25
    Join Date
    Dec 2004
    Location
    Caledonia WI
    Posts
    882
    WOW, now that is truly a Masterpiece!

  13. #26
    Join Date
    Oct 2013
    Posts
    177
    Do you use ratchet benders? If so, do you remove the armaflex first? I have only used mine on very short pieces of lineset and just slid the armaflex back on.

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