System information

DCN: 141-01070-03 TR40 Thermostat Manual 29
Control Unit Installation
POWER
The TR40 is supplied with a 12VDC 500mA wall mount transformer.
SYSTEM CHECKOUT
It is strongly recommended that you hook-up and run a simple bench test before installing this controller.
Not only will this save you time in system checkout but will also familiarize you with the TR40 operation.
QUICK TEST
NOTE: Before power up, set the control unit dipswitch, SW1, to ALL OFF.
1. Connect a Wall Display Unit to the Control Unit with a short (2 foot) 4 wire cable.
2. Connect the 12VDC transformer to the Control Unit.
3. Plug the transformer into an 110v outlet and apply power to the Control Unit. Verify Power LED is ON.
4. Verify the TS40 display comes on and shows the current temperature.
a. If no display or a “Communications Failure” display is shown on the TS36,
b. Double check your wiring. Miswires may cause permanent damage to Wall Display Units.
c. Do not proceed until the current temperature and no failure is displayed on the WDU.
d. If another WDU is available, try swapping WDU’s.
5. With the current temperature displayed on the WDU, we have verified communication between it and the
Control Unit is OK. Any problems will result in a “Communications Failure” display on the WDU.
6. Press the Fan button on the WDU. The Control Unit Fan LED and relay should turn on.
7. Press the Fan button again. The Fan LED and relay should turn off.
8. Press the Mode button until the WDU is showing “Heat” for Heat Mode.
9. Press the Setpoint Up button until the setpoint is above the current temperature. The Heat LED and relay
should come on.
10. Press the Mode button until the WDU is showing “OFF”. The Heat LED and relay will turn OFF.
11. Press the Mode button until the WDU is showing “Cool” for Cool Mode.
12. Press the Setpoint Down button until the setpoint is below the current temperature. The Cool and Fan
LEDs and relays should turn on.
13. Press the mode button until the WDU is showing “OFF” for OFF Mode.
14. All LEDs and relays should turn off.
15. When you have successfully completed all these tests, you have verified that the Control Unit and the
WDU are working and communicating correctly.