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Three-Pole
Left Top Connector Two-Pole
24 V~
24 V~
Fan
Hot
Com
5
3
4
Six-Pole Bottom Connector
AO1
Blank
BI1
11
12
10
Figure 5: TEC2045-2 Thermostat Controller
Terminals
Power and Fan
24 V~
Analog Output
AO1
Hot
and Valve
0 to 10 VDC
24 VAC
Com
24 VAC
Thermostat Power
Figure 6: TEC2045-2 Thermostat Controller with Separate Power Source for Auxiliary Contact
4
TEC2045-2 Wireless Thermostat Controller with Single Proportional Output and One-Speed Fan Control
Installation Instructions
Right Top Connector
BO5
BO5
Aux
Aux
6
7
Scom
BI2
UI3
14
15
16
Separate 24 VAC
Power Source for Auxiliary Output
(24 VAC Maximum)
24 V~
BO5
BO5
Fan
Com
Aux
Aux
Aux
Fan
Load
Table 2: TEC2045-2 Thermostat Controller
Terminals
Terminal
Terminal
Number
Label
3
Fan
4
24 V~ Hot
5
24 V~ Com
6
BO5 Aux
7
BO5 Aux
10
AO1
11
Blank
12
BI1
14
Scom
15
BI2
16
UI3
Remote Inputs
BI1
Scom
Voltage-Free
Contact
• Remote NSB
• Motion
• Window
SS (Supply Sensor)
COS (Change Over Sensor)
Independent
Contacts
• Reheat
• Lighting
• On/Off Actuation
• Exhaust Fan
Function
Fan On
24 VAC
24 VAC (Common)
Auxiliary Binary Output
Auxiliary Binary Output
Open Cool
Close Cool
Configurable Binary Input 1
Sensor Common
Configurable Binary Input 2
Configurable Universal Input 3
Voltage-Free
Contact
• Door
• Remote
BI2
UI3
Override
• Filter Alarm
• Service Alarm
Voltage-Free
Contact
• COC/NH
- OR -
Normally Heat
Closed Contact
= Cold Water
• COC/NC
Normally Cool
Closed Contact
= Hot Water
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