Wire a Thermostat to a Damper In this project, you wire a thermostat to a motorized damper that…

Wire a Thermostat to a Damper

In this project, you wire a thermostat to a motorized damper
that could be used as a zone control in an HVAC system. To accomplish this, you
will need a thermostat (standard or automated), a 24-volt motorized damper, a
24-volt output AC transformer with connector screws, and some single-strand
insulated wire to make the connections. You also need a hair dryer to test the
project when you have fi nished wiring it.

1. Unplug the transformer until you have fi nished wiring
the thermostat and damper.

2. Strip a short length of wire at both ends and connect one
»

Wire a Thermostat to a Damper

In this project, you wire a thermostat to a motorized damper
that could be used as a zone control in an HVAC system. To accomplish this, you
will need a thermostat (standard or automated), a 24-volt motorized damper, a
24-volt output AC transformer with connector screws, and some single-strand
insulated wire to make the connections. You also need a hair dryer to test the
project when you have fi nished wiring it.

1. Unplug the transformer until you have fi nished wiring
the thermostat and damper.

2. Strip a short length of wire at both ends and connect one
lead of the transformer to one connector on the damper.

3. Strip the ends of a second length of wire and connect the
other lead of the transformer to one connector screw on the thermostat.

4. Strip the ends of a third length of wire and connect the
other connector screw on the thermostat to the open connector on the damper.

5. Set the thermostat to 70 degrees (or just above the
present room temperature) so it is on. Plug in the transformer. The damper
should open because the thermostat is on.

6. Plug in the hair dryer and turn it on low heat. Direct
the dryer’s air stream on the thermostat until it opens and the damper closes.

7. Immediately turn off the dryer and see how long it takes
for the thermostat to close and open the damper.

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