[mntnvew]

I am installing a generic air flow duct to allow some outside air into my workshop during the warmer months. The duct is in a really high spot and I didnt want to use a manual damper so I purchased an electric inline damper to allow me to close it from a switch in the winter months.

Now I am trying to wire it to a switch instead of a thermostat (the directions say a Low Voltage thermostat is required). The instructions can be seen here:

http://suncourt.com/ZoneMaster_Instructions.html

Basically I want to know if I can use a standard single pole switch in place of the low voltage thermostat mentioned in the installation instructions.

And if NOT, what other options do I have to switch this instead of using a thermostat?

Any thoughts are appreciated!!!

 

[nap]

yes you can but why not use a t-stat?

 

[mntnvew]

yes you can but why not use a t-stat?

Exterior thermostat?

Any notion on how to wire the switch, is it the same just disregard the thermostat graphic in instructions and use the two wires for the single pole switch per usual?

Thanks!

 

[nap]

the switch; yes, just put it inline of the low voltage line just like the t-stat is.

exterior t-stat? I thought you said this was in a workshop.

 

[hayewe farm]

You can connect the transformer to 120 VAC and install the switch in the low voltage line in place of the thermostat connection or wire the transformer direct the the dampener and use the switch to turn the 120 VAC on and off the the transformer.

 

[Wildie]

You can connect the transformer to 120 VAC and install the switch in the low voltage line in place of the thermostat connection or wire the transformer direct the the dampener and use the switch to turn the 120 VAC on and off the the transformer.

I like your idea of switching the transformer. Then when its turned off, absolutely no power will be used.

 

[nap]

the power used by a small transformer is minimal and switching the 120 voltage means he will have to install cabling and or conduit and boxes etc as required per code.

the low voltage wiring can be a phone line run across the floor if he wants.

 

[Wildie]

the power used by a small transformer is minimal and switching the 120 voltage means he will have to install cabling and or conduit and boxes etc as required per code.

the low voltage wiring can be a phone line run across the floor if he wants.

What you say is true, unless he uses a lamp cord switch and plugs it into a receptacle.
I wonder what the current rating for this damper would be.
As the damper will only be operated for awhile in the summer, why not have all shut off for the rest of the year!

 

[mntnvew]

exterior t-stat? I thought you said this was in a workshop.

Yeah but I dont want it to open when I have my heat on in the shop in the winter, so an interior t-stat is really useless. If it was outside then it would work, but I am not keen on putting t-stat outside

I will just switch it. i purchased a N/C (Normally Closed) damper so I will actually only have to give it juice to open it during the summer and here in Montana that is only 4-5 months if we are lucky

Thanks, I can always count on this forum for solid advice (8 out of 10 times anyways

L8R

 

[mntnvew]

... or wire the transformer direct the the dampener and use the switch to turn the 120 VAC on and off the the transformer.

I like this idea the best. Can anyone confirm my diagram assumptions below, better safe then sorry

 

[hayewe farm]

Your drawing is correct for using a switch in the low voltage circuit. Or you can add apower cord to the transformer and wire direct to the dampener. No switch required. Plug it in dampner open, unplug it dampner closed.

 

[mntnvew]

Your drawing is correct for using a switch in the low voltage circuit. Or you can add apower cord to the transformer and wire direct to the dampener. No switch required. Plug it in dampner open, unplug it dampner closed.

Excellent, thank you!

 

[InPhase277]

To be compliant, the transformer needs to be mounted to a junction box, and the splices made appropriately.

 

[mntnvew]

To be compliant, the transformer needs to be mounted to a junction box, and the splices made appropriately.

Right, I guess that means I "cant just wire a cord". I have junction boxes with knockouts and will attach the transformer accordingly, thanks for the reminder though

 

[zpm]

Most damper actuators don't use much power, typically a couple of watts at 24vac. An old sprinker timer transformer plugged into a switched receptacle would be another option.

 

[hayewe farm]

Or he could get a plug in transformer no box required