Lennox International Inc. 2SCU13 User Manual
Page 17
# 48283B006
Page 17
Figure 13
Three Phase Wiring Diagram P/N 48436-001
B4
OUTDOOR
FAN
C1
OUTDOOR FAN
CAPACITOR
A4
TIMED OFF
CONTROL
(IF USED)
PURPLE
BLACK
ORANGE
BLACK
BLACK
RED
T3 T2 T1
BLACK
L3 L2 L1
COMPRESSOR
B1
CRANKCASE HEATER
(IF USED)
HR1
2
3
1
TO 24 VAC
POWER SOURCE
10 VA MINIMUM
NEC CLASS 2
C
Y1
L1
L2
L3
208-230/60/3
GROUND
2
S4 HIGH
PRESSURE
SWITCH
(IF USED)
S24 LOSS
OF CHARGE
SWITCH
(IF USED)
S4
A4 S24
K1
2
3
1
Y1
C
TO 24 VAC
POWER SOURCE
10 VA MINIMUM
NEC CLASS 2
S40
208-230/60/3
GROUND
LUG
COMPRESSOR
CONTACTOR
K1
1
L1
L2
L3
EQUIPMENT
GROUND
HR1
S40
K1-1
BLACK
BLACK
B1
BLACK
ORANGE
BLA
CK
B4
C1
PURPLE
RED
1
FOR USE WITH COPPER CONDUCTORS ONLY. REFER TO UNIT RATING
PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVERCURRENT
PROTECTION SIZE.
WARNING--
ELECTRIC SHOCK HAZARD, CAN CAUSE INJURY
OR DEATH. UNIT MUST BE GROUNDED IN
ACCORDANCE WITH NATIONAL AND LOCAL CODES.
LINE VOLTAGE FACTORY INSTALLED
LINE VOLTAGE FIELD INSTALLED
24 VOLT FACTORY INSTALLED
CLASS II VOLTAGE FIELD INSTALLED
2
JUMPER IS USED WHEN TOC IS NOT USED.
DESCRIPTION
KEY
COMPONENT
A4
CONTROL - TIMED OFF
B1
COMPRESSOR
B4
MOTOR - OUTDOOR FAN
C1
CAPACITOR - OUTDOOR FAN
HR1
HEATER - COMPRESSOR
K1-1
CONTACTOR - COMPRESSOR
S4
SWITCH - HIGH PRESSURE
S24
SWITCH - LOSS OF CHARGE
S40
THERMOSTAT - CRANKCASE
1