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21
ENGLISH
- Power supply cords of parts of appliances for outdoor use should not
be lighter than polychloroprene sheathed flexible cord.
- Don't install an individual switch or electrical outlet to disconnect
each of indoor unit separately from the power supply.
CAUTION
• Some installation site may require attachment of an earth leakage
breaker. If no earth leakage breaker is installed, it may cause an
electric shock.
• Do not use anything other than breaker and fuse with correct ca-
pacity. Using fuse and wire or copper wire with too large capacity
may cause a malfunction of unit or fire.
!
WARNING
• Follow ordinance of your governmental organization for techni-
cal standard related to electrical equipment, wiring regulations
and guidance of each electric power company.
• Make sure to use specified cables for connections so that no
external force is imparted to terminal connections. If connec-
tions are not fixed firmly, it may cause heating or fire.
• Make sure to use the appropriate type of overcurrent protection
switch. Note that generated overcurrent may include some
amount of direct current.
!
Single outdoor unit
Power supply switch
(Switch fuse : ELCB)
Power supply switch
(Switch fuse)
(Main Switch)
Pull Box(Installer Option)
: Single phase of power supply line(L, N)
: Communication line (3 line): Wired remote control
: Communication line (2 shield line):
Between Indoor Unit and Outdoor Unit
Single Phase 3wires
(L1,L2,GND)
Power supply
208/230V, 60Hz
Power supply
1 Phase
208/230V, 60Hz
Example) Connection of transmission wire
[BUS type] [STAR type]
- Connection of communication
cable must be installed like
below figure between indoor
unit to outdoor unit.
- Abnormal operation can be
caused by communication de-
fect, when connection of com-
munication cable is installed like
below figure(STAR type).
WARNING
•
Indoor Unit ground wires are required for preventing electrical shock ac-
cident during current leakage, Communication disorder by noise effect
and motor current leakage (without connection to pipe).
• Don't install an individual switch or electrical outlet to disconnect
each of indoor unit separately from the power supply.
• Install the main switch that can interrupt all the power sources in an
integrated manner because this system consists of the equipment
utilizing the multiple power sources.
• If there exists the possibility of reversed phase, lose phase, mo-
mentary blackout or the power goes on and off while the product is
operating, attach a reversed phase protection circuit locally. Run-
ning the product in reversed phase may break the compressor and
other parts.
!
Example) Connection of power and communication cable
3, 4, 4.4, 5 Ton
Insulation
sleeves
attachment
Power/
Ground
cable
Power/
Ground cable
View A
Communication
cable
Over
50mm
gap
Fix firmly
not to be
displaced
ODU-IDU
Communi-
cation cable
Hold power
cable
Communication
cable
Main power
Terminal
block
Hold Com-
munication
cable
Ground wire
Fix firmly
not to be
displaced
A
Over
50mm gap
Power/
Ground cable
Comm-
unication
cable
Right side Front side
2 Ton
Power/
Ground cable
Main power
Terminal block
Insulation
sleeves
attachment
Ground wire
Conduit
Power/
Ground cable
ODU-IDU
Communi-
cation cable
Over
50mm gap
Front side Right side
Field Wiring
1,MFL67798024,영영 18. 7. 19. 영영 2:14 Page 21
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