Table 4: Terminal identification
Function
Terminal label
1
TEC3012, TEC3013
Floating FC/VAV and
On/Off FC
1
TEC3312, TEC3313
Floating FC/VAV and
On/Off FC
1
TEC3612, TEC3613
Floating FC/VAV and
On/Off FC
1
24 V 24 VAC hot from transformer
FAN H Fan high
FAN M Fan medium
FAN L Fan on (single-speed, variable-speed), Fan low (multi-speed)
AUX Auxiliary binary output
AUX Auxiliary power
2
HC/TRI
2
Cool or heat valve output common
COM 24 VAC common from transformer
CLG O Cool open (Floating), Cooling NC (On/Off), Triac
CLG C Cool close (Floating), Cooling NO (On/Off), Triac
HTG O Heat open (Floating), Heating NC (On/Off), Triac
HTG C Heat close (Floating), Heating NO (On/Off), Triac
RSEN Configurable analog input 1
COS Configurable analog input 2/Changeover binary switch input
VSF Variable speed fan command (configurable 0 to 10 V range)
BI-2 Configurable binary input 2
BI-1 Configurable binary input 1
NET+ N/A Not connected Field bus+/N2+
NET- N/A Not connected Field bus-/N2-
NET COM N/A Not connected Isolated common for
field bus
1 There is no support for an On and Off VAV.
2 HC/TRI on TB1 must be jumpered to COM on TB2 for low-side switching or to 24 VAC on TB2 for high-side switching.
TEC3000 Series On/Off or Floating Fan Coil Thermostats Installation Guide10
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