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  1. #1
    Join Date
    Mar 2010
    Location
    Southern Ontario, Canada
    Posts
    4

    Dual Zoning a G61MPV/XC14

    Hi,

    We just had a new Lennox G61MPV/XC14 along with a PureAir and an HRV installed during a big remodel. Brand new main trunking was installed and split to accomodate two zones. Existing vertical ducts to rooms were kept.

    1) Finished Basement (~1200 sq ft) and
    2) Main/2nd floor (~1800 sq ft)

    Both trunks are 6"x16" and accessible. We just have one main t-stat installed now (main floor) which is a Honeywell TH6000.

    We have a quote that seems quite high for configuring 2-zones. There is no parts list so I don't know what they would use.

    I am thinking that 2 dampers, a zone controller and a second t-stat is all that is required along with a bit of wire. Is this a DIY job?

    /dan

  2. #2
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,880
    No, not a DIY job.

    Not if you want the HRV to work with the furnace.
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  3. #3
    Join Date
    Mar 2010
    Location
    Southern Ontario, Canada
    Posts
    4
    Thanks "beenthere".

    Should I insist on a Harmony III controller?

    Are there any specific dampers that have better reliability that I should insist on?

    I just have a quote for a price for zoning with no details. This was fine for the HRV and the PureAir options since I knew what the equipment was but for the "zoning" I have no idea what they had planned.

    BTW, my HRV may not be wired correctly in the first place.

    /dan

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,880
    You may want to upgrade to the harmony.

    But, you need to tell them that you want everything to work like the install manuals say it should work. Which means the have to double check what is compatible with what. And then wire them the way the install manuals say.

    Not all equipment is designed to play nicely with all other equipment.
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  5. #5
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,730
    G61MPV is great for zoning, plays very nice with the Harmony controls.

    XC14 was a poor choice for a system you wanted to zone. if zones don't allow enough air flow it will constantly be cycling on the discharge air sensor.

  6. #6
    Join Date
    Mar 2010
    Location
    Southern Ontario, Canada
    Posts
    4
    What would have been a better choice? Only the inside coils have been installed not the evaporator (still had too much snow 2 weeks ago). Might be changable at this point.

    /dan
    Last edited by drhaller; 03-14-2010 at 03:22 PM. Reason: added a question

  7. #7
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,880
    The inside coils are the evap coils of an A/C.
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  8. #8
    Join Date
    Jul 2008
    Location
    Rochester NY
    Posts
    4,721
    Is xc14 a single stage heat pump? Probably 2 stage with low sized for air flow of your smallest zone will fit the bill.

    527 or bt?
    Which makes more sense to you?
    CONSERVATION - turning your thermostat back and being uncomfortable. Maybe saving 5-10%
    ENERGY EFFICIENCY - leaving your thermostat where everyone is comfortable. Saving 30-70%

    DO THE NUMBERS! Step on a HOMESCALE.
    What is comfort? Well, it AIN'T just TEMPERATURE!

    Energy Obese? An audit is the next step - go to BPI.org, or RESNET, and find an auditor near you.

  9. #9
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,880
    XC14 is a single stage A/C.
    XC16 is a 2 stage A/C.
    XP14 is a single stage HP.
    XP16 is a 2 stage HP.
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  10. #10
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,730
    if zoning you would be much better off to go with one of the 2 stage outdoor units.

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