HRV/FURNACE WIRING

Discussion in 'HVAC Heating & Cooling' started by Fartsac, Feb 20, 2020.

  1. Fartsac

    Fartsac New Member

    Joined:
    Feb 2, 2018
    Location:
    Martintown, Ontario
    Hello,
    I would like my furnace fan to activate when I choose MAX on the the wall control board or when I activate the ligh touch push button switch in the bathroom.
    My equipment:
    Venmar Constructo #43110
    Lennox EL296UHE
    My set up:
    Relay Wiring.png
     
  2. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    How about a picture of the relay pin out diagram.
     
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  4. fitter30

    fitter30 Well-Known Member

    Joined:
    Feb 2, 2020
    Occupation:
    Retired service tech
    Location:
    Peace valley missouri
    1&3 coil
    4Common
    2 no
    5nc
    Don't know what a wall control is but would need two relay one for each devise light & wall control. PROBLEM
    if furnace has a multi speed blower heat runs at a lower speed than ac to make this work without frying the blower motor both heat and ac have to run on the same high speed and might have a cold draft in heat if heat is satisfied and fan is running.
    Relay looks correct wire both relays in parallel.If
    Correct voltage relay coils.
    Why not put the hrv on a timer or indoor air quality control.
     
    Last edited: Feb 27, 2020
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