Model Number:
MODEL: OPAC4212AH
OPAC4212AH WIRING DIAGRAM
OA-EISM-OPAC4212AH- REV. 04212023
Page 8
WH
3
240
H
RCCF
F
C
Y
L
B
R
PU
2
24
V
208
T
R
C
BK
1
PU
CO
MP
CM
BR
BR
1
4
P
L
F
P
U
B
K
Y
L
S
BK
RD
B
K
5
6
2
3
C
R
T2
T1
RD
BL
NO
TE
#3
P
U
BL
L1
C
L2
P
U
BK
7
8
9
BL
BR
RD
RD
B
K
BK
RD
Y
L
C
L
G
N
1
2
3
BL
BL
RD
RD
GR
GR
GR
EM
GR
SE
E
N
OTE
2
Y
L
WH
BK
P
U
4
5
WH
WH
Y
L
BK
H
P
S
C
O/B
W1
G
R
Y1
YL
RD
GR
WH
OR
BR
BL
LVJB
SEE NOTE 4
GND
SEE NOTE 6
SEE NOTE 1
POWER INLET - CS8275
208-240V/1/60Hz
MAIN BREAKER
50 AMP
USE CONNECTOR
HUBBELL - CS8264C
OR EQUIVALENT
T2
L2
L1
T1
HTR 1
HTR 2
FLS
FLS
TL
TL
AUX HTR
BREAKER
40
AMP
BL
OR
OR/WH
GR
BL/WH
GR/WH
6
4
PLUGGED INT
O
TERMINALS
4 & 6 ON PLF
BL
WH
CAT 8
CABLE
PRS31
10
THERMOST
A
T
LOW VOLTAGE
BROWN LEAD
NOT USED
AUX HEATER CONTACTOR
COMPRESSOR CONTACTOR RELAY
CONDENSER MOTOR
COMPRESSOR
EVAPORATOR MOTOR
EQUIPMENT GROUND
LOW VOLTAGE JUNCTION BOX
FEMALE PLUG / CONNECTOR (IN HEATER BOX)
RUN CAPACITOR FOR COMPRESSOR AND FAN
TRANSFORMER
HIGH PRESSURE SWITCH
NOTES:
1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE INSULATION AS ORIGINAL
(AT LEAST 105°C) USE COPPER CONDUCTOR ONLY.
2. TO CHANGE EVAPORATOR MOTOR SPEED IN COOLING MODE, MOVE YELLOW LEAD
FROM EM" 4” TO "2"
3. FOR 208 VOLT TRANSFORMER OPERATION MOVE PURPLE WIRES FROM
TERMINAL 3 TO TERMINAL 2 ON TRANSFORMER.
4. USE COPPER CONDUCTORS ONLY. USE N.E.C. CLASS 2 WIRE.
5. DOUBLE POLE CONTACTOR SHOWN. SINGLE POLE CONTACTOR COULD BE
FACTORY EQUIPPED AS AN ALTERNATE CONFIGURATION.
6. COMMON SIDE OF CONTACTOR CAN NOT BE GROUNDED OR CONNECTED TO
ANY OTHER COMMON (24V).
COMPONENT LEGEND
AHC
CCR
CM
COMP
EM
GND
LVJB
PLF
RCCF
TR
HPS
FACTORY WIRING
LINE VOLTAGE
LOW VOLTAGE
WIRE CODE
BK
BL
BR
GR
OR
PU PURPLE
RD RED
WH WHITE
YL YELLOW
ELECTRIC HEAT ELEMENT
HTR
BR/WH
BLACK
BLUE
BROWN
BROWN/WHITE
GREEN
ORANGE
OR/WH
ORANGE/WHITE
GR/WH
GREEN/WHITE
BL/WH
BLUE/WHITE
THERMAL LIMIT
TL
LIMIT SWITCH
FLS
CCR
BREAKER ST
A
TUS
RED = ON
GREEN = OFF
AHC
