Johnson Controls TEC3310 Installation Instructions Manual page 12

Note: VAV and 2-pipe systems should connect their valve to the heating output.
Figure 11: Floating Control Two-Pipe Heating and Cooling Hydronic Valve Control Fan Coil Application
Room Temperature
Control Thermostat
Figure 12: Floating Control Two-Pipe Heating and Cooling Hydronic Valve Control with Changeover Fan
Optional Water
Supply Sensor
Room Temperature
Control Thermostat
Figure 13: Floating Control (On/Off Two-Pipe and Four-Pipe Fan Coil Applications)
TEC3000 Series On/Off or Floating Fan Coil and Individual Zone Thermostat Controllers with Dehumidification
Coil Application
Floating
Heating/Cooling
Valve
Triac Switch
24V
COM
Two-Pipe Applications
Capability Installation Instructions
COS
COM
24V
HTG O
HTG C
COS
COM
24V
HTG O
HTG C
Supply Water
Temperature Sensor
Triac Switch
Cooling
Valve
Heating
Valve
Four-Pipe Applications
12
Triac Switch
24V COM