Page 10 of 12
507390-02
Issue 2127
Figure 5. Wiring Diagram - EWC1512P24B
MODEL
COOLING
SPEED
HEATING
SPEED
EWC1512P24B
TAP #4
TAP #3
LINE VOLTAGE-FACTORY
LINE VOLTAGE-FIELD
LOW VOLTAGE-FACTORY
LOW VOLTAGE-FIELD
C
C
1
0
4
4
5
2
6
3
1
8
C
C
4
5
3
1
1
0
2
6
8
4
HEATING CABINET
COOLING CHASSIS
BLAC
K
208/230V-1 -60Hz
POWER SUPPLY
COPPER CONDUCTORS
ONLY.
BLK/WH
T
HTR
BLACK
LIMIT
SEQ 1
BLUE
WHITE
HTR
RED
LIMIT
SEQ 2
BLACK
L1
L2
BLACK
RELAY 2
RED
BLUE
WHITE
RED
RED
BLACK
RELAY 1
RED
HTR
RED
LIMIT
BLACK
BLACK
WHIT
E
BLUE
BLUE
WHIT
E
L3
L4
THERMOSTAT
RE
D
BLUE
YELLO
W
WHITE
GREEN
Y
G
W
C
R
BLUE
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
REFRIGERANT
HIGH PRESSURE
SWITC
H
BLUE
BLK/WHT
RED
BLACK
BLACK
N G L C
BLACK
BLUE
GREE
N
BLK/WHT
BLK/WHT
BLACK
6
4
5
3
1
24V
WHITE
COOLING
HEATING
2
1
3
4
5
SEE CHART
FOR WIRING
GREEN
WHITE
GRAY
PURPLE
BLACK
GREEN
ORANGE
NOTE:
IF ANY OF THE ORIGINAL WIRES ARE
REPLACED THE SAME SIZE AND TYPE
WIRE MUST BE USED.
RED
GREEN & YELLOW
YELLOW
BLACK
BLK
YL
W
BLAC
K
BLAC
K
CIRCUITS ENERGIZED
OPERATING MODE
HEATING
COOLING
FAN
CIRCUIT
R-W
R-G-Y
R-G
