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dionr
Starting Member

Canada
4 Posts

Posted - 08/15/2017 :  06:14:06 AM  Show Profile  Reply with Quote
Hi
I have bought

RESIDENTIAL CONTROL 001-00250 ZC4 4-ZONE HVAC CONTROLLER WITH THERMAL EQUALIZER


I saw in the manual that each zone are 1amp

Each of my damper is 0.5 amp

But the problem is I have zone with three damper

What can I do to solve the problem

Thanks

Robert Dion

stusviews
Moderator

USA
15603 Posts

Posted - 08/15/2017 :  5:49:10 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
Do you also have 4 zones?

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dionr
Starting Member

Canada
4 Posts

Posted - 08/16/2017 :  1:39:09 PM  Show Profile  Reply with Quote
all the zone is allocated

zone 1 : 2 damper
zone 2 : 3 damper
zone 3 : 2 damper
zone 4 : 2 damper


Robert Dion
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stusviews
Moderator

USA
15603 Posts

Posted - 08/16/2017 :  2:09:59 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
You can accomplish what you want using a 24VAC relay and a 24VAC power supply rated at at least 1.5 amps. preferably 2 amps or more. Do you need help with the wiring diagram and/or locating the parts?

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dionr
Starting Member

Canada
4 Posts

Posted - 08/16/2017 :  2:40:56 PM  Show Profile  Reply with Quote
Yes it will be great

Robert Dion
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stusviews
Moderator

USA
15603 Posts

Posted - 08/16/2017 :  4:47:23 PM  Show Profile  Visit stusviews's Homepage  Reply with Quote
power supply. Select any 40VA power supply depending on how you'll provides power, plug-in or wire-in.

This device includes 2 relays. You need only one of the two. You can ignore the second relay. A search may reveal other power supplies and/or relays.

All you really need is a 24VAC power supply and a single SPST relay with a 24VAC coil.

Wiring:
Provide line voltage for the power supply. Use the damper connections (2 wires) to power the relay instead of to control a damper. Use the relay contacts as a switch between the new power supply output and the dampers.

If you need a diagram, then I'll create one tomorrow.

Stu's Views is Education and Fun. What do YOU want to VIEW today?
MathLandia High school mathematics learning fun.
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dionr
Starting Member

Canada
4 Posts

Posted - 08/17/2017 :  05:42:24 AM  Show Profile  Reply with Quote
yes it will be great , it will be more easy to understand

can you also give me some part to be sure that i will buy the good stuff

Robert Dion
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stusviews
Moderator

USA
15603 Posts

Posted - 08/18/2017 :  11:52:13 AM  Show Profile  Visit stusviews's Homepage  Reply with Quote
Diagram

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Geo
Advanced Member

Canada
732 Posts

Posted - 08/21/2017 :  3:22:10 PM  Show Profile  Reply with Quote
I have a couple of 24VAC 6" dampers from Smarthome - they're excellent and come with their own transformers. The issue that concerned me was the power draw - almost 1/2 A. Because the motor is continuously energized when the damper is engaged it gets quite hot after a while. Too hot to touch. This is not good for the motor's reliability. I connected a 50 Ohm/10W resistor in series with the motor and also reduced the tension of the return spring to reduce the motor load. Now the damper draws about 1/4 of its original current and gets just warm after several hours of the damper being on.

GJN
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