Cabinet Heater G*Y/D*Y Series
INSTALLATION, OPERATION, & MAINTENANCE MANUAL
21
SECTION THREE – Controls Operation, Cont'd.
For Thermostat Control By Others or Remote Mounted Thermostat
Connection
Function/Description
(+) 10V
Apply 0-10V signal for
proportional fan speed control
(ECM only)
(-) COM
Ground control power
G3 / HI
Apply 24V signal for High
Speed Control
G2 / MED
Apply 24V signal for Medium
Speed control
G1 / LOW
Apply 24V signal for Low
Speed Control
W1 / HTG
Apply 24V for Stage 1 heat
Y1 / CLG
Apply 24V for Stage 1 cool
W2 / HT2
Apply 24V for Stage 2 heat
Y2 / CL2
Apply 24V for Stage 2 cool
R / 24V
24V Controller Power
COS
Changeover sensor
RAS
Room air sensor
2. CN2 – Changeover/Return Air Sensor
l
Power connector for 24V or Common-powered sensors
m
24V powered sensors
l
Applicable for IEC-supplied air sensor for Wi-Fi (E055-71520330), Programmable (E055-71520317),
Non-programmable (E055-71520316) 24V IEC thermostats
m
Common-powered sensors
l
Applicable for thermostats by others
l
Sensor/switch
m
10k thermistor
m
Bimetal switch
3. CN3 – Remote Shutdown Input
l
Provides dry contact for signal to BAS system – I/O
m
Dry Normally Open
m
Wet Normally Open
m
Discrete Coil
l
When contact activated
m
Motor OFF
m
Actuator OFF
m
Electric Heat OFF
m
Power to controller remains ON
l
BAS LED indication when BAS relay circuit activated
Figure 21.
Unplug blue connector from control board. Make
appropriate thermostat wiring connections and plug connector
back to control board
.
