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Old 02-07-2010, 12:55 PM   #1
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Venmar HRV Wiring


I recently purchased a house that has a Venmar HRV 1.0 Air Exchanger. There are two controls that are installed. A Venmaer 40350 Main Wall Control and a Venmar 12030 20 Minute Push Button. The 20 minute control does not seem to be working correctly. The fan will only run if you hold down the button. As soon as you let up on the button, the fan will stop.

I looked at the user manual and it appears the wiring they suggest is different from the wiring that is currently being used. I'm hoping someone can tell me how these controls are supposed to be connected. I have laid out the current conifuration, as well as the suggested configuration. The only difference is how the Main Control is wired.

Also, is it possible that the 20 Minute Control is just faulty and needs to be replaced?

Any help would be greatly appreciated!

Thank you!

Current Wiring
Venmar Main Wall Control (40350)
G, R, Y on Control to G, R, B on Terminal

Venmar 20 Minute Push Button (12030)
I, OC, OL on Control to I, OC, OL on Terminal

Sugessted Wiring
Venmar Main Wall Control (40350)
G, B on Control to G, B on Terminal

Venmar 20 Minute Push Button (12030)
I, OC, OL on Control to I, OC, OL on Terminal


Last edited by chaka33; 02-07-2010 at 01:00 PM.
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