EM HEAT
R
Y1
Y2
W1/E/AX1
W2/AX2
O/B/W3
G
L
C
THERMOST
AT
Z
ONE
1
PO
COMM
PC
DAMPER
ZONE
1
R
Y1
Y2
W1/E/AX1
W2/AX2
O/B/W3
G
L
C
THERMOS
TAT
Z
ONE
2
DAMPER
ZONE
2
PO
COMM
PC
R
Y1
Y2
W1/E/AX1
W2/AX2
O/B/W3
G
L
C
THERMOST
AT
Z
ONE
3
PO
COMM
PC
DAMPER
ZONE
3
24V
24C
POWER 24
VA
C
EXP
ANSION
COM1
COM2
GND
COM3
COM4
EXP
ANSION
COM1
COM2
GND
COM3
COM4
R
Y1
Y2
W1/E/AX1
W2/AX2
O/B/W3
G
L
C
THERMOS
TAT
Z
ONE
4
PO
COMM
PC
DAMPER
ZONE
4
Rh
Rc
Y1
Y2
G
G2
W1/E/AX1
W2/AX2
W3/O/B
L
C
EQUIPMENT
FA1
FA2
FIRE
ALARM
SENSORS
SA1
SA2
ODT1
ODT2
SENSORS
Terminal Qty. Function Description
PANEL
24V
1
INPUT
24 VAC Transformer Power 100 VA Maximum
POWER
24C
1
INPUT
24 VAC Transformer Common
DAMPERS
PO
4
OUTPUT
24 VAC Power Open Zone Damper Terminal
COMM
4
OUTPUT
Zone Damper Common Terminal
PC
4
OUTPUT
24 VAC Power Close Zone Damper Terminal
SUPPLY
SA1
1
INPUT
Plenum Supply Air Sensor Terminal 1 (No Polarity)
AIR
SA2
1
INPUT
Plenum Supply Air Sensor Terminal 2 (No Polarity)
OUTDOOR
ODT1
1
INPUT
Outdoor Air Sensor Terminal 1 (No Polarity)
AIR
ODT2
1
INPUT
Outdoor Air Sensor Terminal 2 (No Polarity)
FIRE
FA1
1
INPUT
Normally Closed or Open Dry Pair (No Polarity)
ALARM
FA2
1
INPUT
Normally Closed or Open Dry Pair (No Polarity)
EXPANSION
COM1
2
PANEL
Expander Panel Communication
COM2
2
PANEL
Expander Panel Communication
GND
2
PANEL
Expander Panel Communication Ground
COM3
2
PANEL
Expander Panel Communication
COM4
2
PANEL
Expander Panel Communication
EQUIPMENT
Rh
1
INPUT
24 VAC Equipment Transformer Power Connection
Rc
1
INPUT
24 VAC Cooling Equipment Transformer (Dual Transformer Systems Only)
Y1
1
OUTPUT
1st Stage Compressor
Y2
1
OUTPUT
2nd Stage Compressor
G
1
OUTPUT
1st Stage Fan Control
G2
1
OUTPUT
2nd Stage Fan Control
W1/E/AX1
1
OUTPUT
[W1] 1st Stage Conventional Heat [E] Emergency Heat [AX1] 1st Stage Auxiliary Heat
W2/AX2
1
OUTPUT
[W2] 2nd Stage Conventional Heat [AX2] 2nd Stage Auxiliary Heat
W3/O/B
1
OUTPUT
[W3] 3rd Stage Conventional Heat [O] Cool Active Reversing Valve
[B] Heat Active Reversing Valve
L
1
INPUT
System Malfunction Indicator
C
1
INPUT
24 VAC Transformer Common
THERMOSTAT
R
4
OUTPUT
24 VAC Thermostat Power
Y1
4
INPUT
1st Stage Compressor Call
Y2
4
INPUT
2nd Stage Compressor Call
W1/E/AX1
4
INPUT
[W1] 1st Stage Conventional Heat Call [E] Emergency Heat Call
[AX1] 1st Stage Auxiliary Heat Call
W2/AX2
4
INPUT
[W2] 2nd Stage Conventional Heat Call [AX2] 2nd Stage Auxiliary Heat Call
O/B/W3
4
INPUT
[O] Cool Active Reversing Valve Call [B] Heat Active Reversing Valve Call
[W3] 3rd Stage Conventional Heat Call
G
4
INPUT
Fan Call
L
4
OUTPUT
System Malfunction Indicator
C
4
OUTPUT
24 VAC Transformer Common
RESET BUTTON
Press once to restart panel
Hold for 5 seconds to reset panel and restore all factory defaults
Rc/Rh TERMINAL JUMPER (J1)
Open jumper for dual transformer installations
WIRE STRIP GUIDE
Wires should be stripped 3/8 inch minimum
EXPANDABLE ZONE PANEL WIRING TERMINALS
5
1
2
3
4
5
6
7
8
9
10
11
