LG 3828A20229B Installation Manual page 16

Power Entry Guide
Important: Holes are provided for low-voltage and high-voltage wiring. It is not
necessary to punch any new holes in either the interior or exterior unit
panels. If new holes are punched, performance will be adversely affected
unless they are resealed to be both air- and watertight.
Typical Field Wiring Diagram (Figure 4)
(For single phase electricity product)
1Ø 208~230V, 60Hz
POWER SUPPLY
SEE NAMEPLATE FOR
LINE VOLTAGE AND
MAX FUSE SIZE
NOTE
FIELD WIRING
FACTORY WIRING
HIGH VOLTAGE
MAGNETIC CONTACTOR
1
2
3
4
5
6
LOW VOLTAGE
TERMINAL BLOCK
• See wiring diagram for details.
Note : For branch circuit wiring(main power supply to unit disconnect), Wire size for the
length of run should be determined using the circuit ampacity found on the unit
nameplate and the N.E.C..
GROUNDING : THE UNIT MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH
LOCAL CODES AND THE NATIONAL ELECTRICAL CODE.
(Note)
• Keep all wires away from the refrigerant pipe.
• Following diagram is the example of wiring arrangement.
3Ø 208~230V, 60Hz
POWER SUPPLY
SEE NAMEPLATE FOR
LINE VOLTAGE AND
MAX FUSE SIZE
HIGH VOLTAGE
MAGNETIC CONTACTOR
THERMOSTAT
R Live
G Fan
Y Comp
W Heater
3Ø 380/415V, 50Hz
POWER SUPPLY
R S T N
SEE NAMEPLATE FOR
LINE VOLTAGE AND
MAX FUSE SIZE
NOTE
FIELD WIRING
FACTORY WIRING
THERMOSTAT
L R Live
1 G Fan
2 Y Comp
3 W Heater
4
N
LOW VOLTAGE
TERMINAL BLOCK
Control wires
Power wires
Installation of Unit
NOTE
FIELD WIRING
FACTORY WIRING
HIGH VOLTAGE
TERMINAL BLOCK
THERMOSTAT
1 R Live
2 G Fan
3 Y Comp
4 W Heater
5
6
LOW VOLTAGE
TERMINAL BLOCK
Installation Manual 15