Johnson Controls TEC20x6-4 Series Installation Instructions Manual page 5

See Figure 5, Figure 6, Figure 7, and Table 2 for
information on wiring the thermostat controllers.
Five-Pole
Left Top Connector
Fan Fan Fan
24 V~
Hot
-H -M -L
1 2 3 4
Eight-Pole Bottom Connector
BO4/ BO1/
BO2 BI1
AO2 AO1
9 10 11 12
Figure 5: TEC20x6(H)-4 and TEC20x6H-4+PIR
Series Thermostat Controller Terminals
Power and Fan
24 V~
24 V~
Fan
Hot Com
-L
24 VAC
Thermostat Power
Figure 6: TEC20x6(H)-4 and TEC20x6H-4+PIR Series Thermostat Controller with
TEC20x6(H)-4 and TEC20x6H-4+PIR Series Wireless Thermostat Controllers with Dehumidification
Three-Pole
Right Top
Connector
24 V~
Com
BO5 BO5
BO3
Aux Aux
5
6 7 8
RS
Scom BI2 UI3
13 14 15 16
Separate 24 VAC
Power Source for Auxiliary Output
(24 VAC Maximum)
Fan
Fan
BO5
-M -H
Aux
Separate Power Source for Auxiliary Contact
Capability, Fan Control, and Occupancy Sensing Capability
Aux Contact
(Isolated Common)
• Reheat
• Lighting
• On/Off Actuation
BO5
Aux • Exhaust Fan
Aux
Remote Inputs
BI1 Scom
Voltage-Free
Contact
• Remote NSB
• Motion
• Window
Supply Sensor
Changeover Sensor
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
5