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29
3
Connect the transformer wires to the
Com
and
24 Vac
screw terminals.
24
Va
c
Com
Run LED
Power LED
98
7 6 5 4
32
1
0
98
7 6 5 4
32
1
0
1 2 3 4 5 6 7 8
O
N
4
Apply power to the Room Controller.
5
Measure the voltage at the Room Controller’s power input terminals to verify that the
voltage is within the operating range of 21.6–26.4 Vac.
6
Plug the terminal connector into the back of the Room Controller.
7
Verify that the
Power
LED is on and the
Run
LED is blinking.
Input wiring
Input
Maximum length
Minimum gauge
Shielding
Thermistor
Dry contact
1000 feet
(305 meters)
22 AWG
Shielded
0–5 Vdc
1000 feet
(305 meters)
26 AWG
Shielded
Output wiring
To size output wiring, consider the following:
•
Total loop distance from the power supply to the controller, and then to the controlled
device
NOTE
Include the total distance of actual wire. For 2-conductor wires, this is twice the
cable length.
Wiring inputs and outputs
Wiring
specifications