System information

DCN: 141-01070-03 TR40 Thermostat Manual 27
Control Unit Installation
LOCATION AND MOUNTING
Install the Control Unit in a protected, convenient, INDOOR location near the HVAC system or in a service
accessible area such as an equipment closet or garage.
Mount the Control Unit in a vertical position on a wall or sturdy structural member. The unit may be mounted
on the HVAC system but care should be taken to avoid the hot burner section or high vibration areas.
WIRING
WIRING TO THE WALL DISPLAY UNIT
The Control Unit connects to the TS40 Wall Display Unit by four wires. In retrofit applications, the existing
thermostat wiring may be used, however, for best results and in new construction, a 22Ga two twisted pair
cable (such as Cat 5 cable) is recommended.
CAUTION!
Be careful to not miswire the Wall Display Unit to Control Unit connections as damage may result.
CONTROL UNIT
GND G
+12VDC +V
CLOCK C
DATA D
WDU
+12V
GND
DATA
CLK
TWISTED PAIR WIRE RECOMMENDED
22GA
TS40 WALL DISPLAY UNIT
J6