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  1. 10-31-2005, 11:54 AM #1
    carlosr
    carlosr is offline Regular Guest
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    How do you tell when a Dual stage furnace is in high or low
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  2. 10-31-2005, 12:05 PM #2
    Jultzya
    Jultzya is offline Grumpy Old Man
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    Most stats have a low/high fire indicator.
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  3. 10-31-2005, 12:19 PM #3
    carlosr
    carlosr is offline Regular Guest
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    Dual Stage

    The thermostst is a Honeywell Focus Pro TH 6220D
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  4. 10-31-2005, 11:00 PM #4
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    mayguy
    mayguy is offline Professional Member*
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    The stat won't have anything say hi or lo fire..

    You can tell by the blower sound.. Low will be quieter, and high will notice a higher blower speed.

    On my Vision Pro, I wired the w2 to light up the red LED.
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