TEC3000 Series Single- or Two-Stage Economizer Thermostat Controllers Installation Instructions
7
Table 2: Terminal Identification (See Figure 7 for Wiring Diagram)
Terminal Label Function
TEC3330, TEC3331 TEC3630, TEC3631
24 V 24 VAC hot from the sensor
Y1 Cooling stage 1
Y2 Cooling stage 2
OAD Economizer
AUX Auxiliary binary output
AUX Auxiliary
W1 OB Heating 1 (RTU mode)/Reversing valve (O/B) (Heat Pump mode)
RH
1
Power for W1 and W2
W2 SUP Heating 2 (RTU mode)/Supplemental heat (Heat Pump mode)
OAT Outside air temperature
COM
2
Common
G Fan
BI2 Configurable binary input 2
BI1 Configurable binary input 1
SAT Supply temperature sensor
R SEN Zone temperature sensor
NET+ Not connected Field bus+/N2+
NET- Not connected Field bus-/N2-
NET COM Not connected Isolated common for field bus
1. RH needs to be connected for W1 and W2 to energize. For heating systems with an isolated power
supply, connect RH to the R terminal of the heating system. For systems that switch the hot supply
to the heating commands, jumper to 24 V. For systems that switch the neutral supply to the heating
commands, jumper to COM.
2. The common terminals, which do not include NET COM, are internally connected and can be used
for all inputs and outputs.
To Next Page
Loading...
Need help?
General
