Armstrong Air Conditioning 4SCU13LE Series Installation And Maintenance Instructions Manual - Page 19
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CRANKCASE HEATER
L1
1
208-230/60/1
L2
EQUIPMENT
GROUND
FOR USE WITH COPPER CONDUCTORS ONLY. REFER TO UNIT RATING
1
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
# 48387H005
OUTDOOR
FAN
PURPLE
BLACK
ORANGE
RED
YELLOW
BLACK
R
S
C
COMPRESSOR
COMPRESSOR
CONTACTOR
(IF USED)
GROUND
LUG
K1-1
HR1
H
Wiring Diagram P/N 48352-001
DUAL
CAPACITOR
C
F
H
BLACK
C
S
R
B1
YELLOW
RED
ORANGE
BLACK
C
F
B4
C12
PURPLE
Figure 14
A4
TIMED OFF
CONTROL
TO 24 VAC
(IF USED)
POWER SOURCE
20 VA MINIMUM
3
2
1
NEC CLASS 2
C
Y1
L2
L1
208-230/60/1
GROUND
S4 HIGH
S24 LOSS
PRESSURE
OF CHARGE
SWITCH
SWITCH
(IF USED)
(IF USED)
A4
S24
S4
2
3
1
K1
C
Y1
TO 24 VAC
POWER SOURCE
20 VA MINIMUM
NEC CLASS 2
DESCRIPTION
KEY
COMPONENT
A4
CONTROL - TIMED OFF
B1
COMPRESSOR
B4
MOTOR - OUTDOOR FAN
C12
CAPACITOR - DUAL
HR1
HEATER - COMPRESSOR
K1-1
CONTACTOR - COMPRESSOR
S4
SWITCH - HIGH PRESSURE
S24
SWITCH - LOSS OF CHARGE
Page 19