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Old 01-20-2009, 02:03 PM   #1
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Help with a Venmar supra control


Hi and thanks for reading,
Does anyone have knowledge of how the 4 wires going to a Venmar supra control work? The supra control has 4 terminals, Y, R, G, and B. It has 3 settings plus a dehumidistat. 20on/40off (low speed), Constant on low speed, and Constant on high speed.

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Old 01-21-2009, 01:47 PM   #2
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Help with a Venmar supra control


I called Venmar today and here is what they said.
The unit uses 24V low voltage signals
Bk is the hot
G is the high switch
R is the low switch
Y is the common

The supra control has a timer that toggles the High setting on every 20 minutes out of the hour.

There is also an Override switch for bath timers and etc...
Bk (OC) is the hot terminal
R is high setting
Y is for the LED

The override terminals can be used in conjunction with supra control and will take precedence over it at the HRV.

This can be seen on page 20 of the install manual from venmar's website. My unit is the HE 2.6.

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