507390-02
Issue 2127
Page 9 of 12
Figure 4. Wiring Diagram - EWC1012P24B
MODEL
COOLING
SPEED
HEATING
SPEED
EWC1012P24B
TAP #4
TAP #3
LINE VOLTAGE-FACTORY
NOTE:
IF ANY OF THE ORIGINAL WIRES ARE
REPLACED THE SAME SIZE AND TYPE
WIRE MUST BE USED.
LINE VOLTAGE-FIELD
LOW VOLTAGE-FACTORY
LOW VOLTAGE-FIELD
CIRCUITS ENERGIZED
OPERATING MODE
HEATING
COOLING
FAN
THERMOSTAT
RE
D
BLUE
YELLO
W
WHIT
E
GREEN
HEATING CABINET
COOLING CHASSIS
Y
G
W
C
R
BLUE
BLAC
K
208/230V-1 -60Hz
POWER SUPPLY
COPPER CONDUCTORS
ONLY.
BLK/WH
T
L1
L2
HTR
BLACK
LIMIT
SEQ 1
BLUE
WHITE
HTR
RED
LIMIT
SEQ 2
BLACK
BLACK
RELAY 1
RED
WHITE
BLUE
RED
RED
BLACK
WHITE
BLUE
WHITE
C
C
1
0
4
4
5
2
6
3
1
C
C
4
5
8
COM
COMP
CONTACTOR
RED
BLUE
L2
240V
208V
YELLOW
RED
L1
T1
T2
BLK/WHT
YELLOW
R
C
S
FAN
COM HERM
TRANSFORMER
BLOWER
MOTOR
CAPACITOR-RUN
COND
FAN
MOTOR
REFRIGERAN
T
HIGH PRESSURE
SWITC
H
BLUE
BLK/WHT
RED
BLACK
BLACK
N G L C
BLACK
BLUE
GREEN
BLK/WHT
BLK/WHT
BLACK
6
4
5
3
1
24V
COOLING
HEATING
2
1
3
4
5
SEE CHART
FOR WIRING
GREEN
WHITE
GRAY
PURPLE
BLACK
GREEN
ORANGE
RED
GREEN & YELLOW
YELLOW
BLACK
BL
K
YL
W
CIRCUIT
R-W
R-G-Y
R-G
