LG LZ-H050GXH4, Quick Manual

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6
INSTALLATION MANUAL
ENGLISH
Method to Connect Wiring
- Pass the power supply wiring and the ground wiring through the
wiring through-hole into the electrical parts box and secure with the
included clamping material after connecting the wires to terminal
blocks.
Connect the wires to the terminals on the control board individually
according to the outdoor unitconnection.
Power supply wiring
Ground wiring
Input from outside
(Indoor unit or
MultiV outdoor unit)
Short-circuit wire
Communication
Terminal Block
Main Power
Terminal Block
Accessory
Terminal Block
Remove when installing
the humidistat.
(locally procured)
- Ensure that the color of the wires of outdoor unit and the terminal No.
are the same as those of indoor unit respectively.
Terminal Block Indoor
1(L) 2(N) 3 4
Ventilation unit
Power Input
SODU IDU
B A B A B A
INTERNET DRY1 DRY2 GND 12V
Outdoor
unit
WARNING
Make sure that the screws of the terminal
are free from looseness.
!
CAUTION
The Power cord connected to the unit
should be selected according to the follow-
ing specifications.
!
WIRING CONNECTION
Electrical Wiring
Perform the electrical wiring work according to the electrical wiring
connection.
- All wiring must comply with local requirements.
- Select a power source that is capable of supplying the current
required by the ventilator.
- Use a recognized ELCB(Electric Leakage Circuit Breaker) between the
power source and the unit. A disconnection device to adequately
disconnect all supply lines must be fitted.
- Model of circuit breaker recommended by authorized personnel only
MCA : Min. Circuit Amps (A) ;
MOP : Maximum Over current Protection
kW : Fan Motor Rated Output (kW) ;
FLA : Full Load Amps (A)
Outdoor
Ventilation unit
Main
power source
Switch box
ELCB
Ventilation unit Power supply Fan motor
Model Hz Volts Voltage range MCA MOP kW FLA
LZ-H050GXN4 /
LZ-H050GXH4
50 220 - 240 V
Max. 264 V
Min. 198V
2.8 8 0.2x2 1.25x2
LZ-H080GXN4 /
LZ-H080GXH4
2.8 8 0.2x2 1.25x2
LZ-H100GXN4 /
LZ-H100GXH4
2.8 8 0.2x2 1.25x2
Wiring for the Humidity Regulator (Locally
Procured)
LZ-H***GXH series only
-
Pass into the electric parts box together with the power wire through
the power wiring through-hole.
- Remove the short-circuit wires on the accessory terminal block and
connect the wiring for the humidity regulator.
- Secure with cramping material together with the power wire.
Precautions when laying power wiring
Use round pressure terminals for connections to the power terminal
block.
Round pressure terminal
Power wire
Wiring specifications
Sheathed wire (should be complied with IEC60245
standard)
Size 0.75 - 1.25 mm
2
Legth MAX. 100 m
External contact
specifications Normally closed contact
(Currenttolerance 10 mA - 0.5 A)
Wire Specification
Power Cable Specification : The power cord connected to the outdoor
unit should be complied with IEC 60245 or HD 22.4 S4(Rubber
insulated cord, type 60245 IEC 66 or H07RN-F)
20 mm
GN/YL
1 Phase(Ø)
Insulation material of supply line shall be at least those of ordinary
tough rubber sheathed. (code designation 60245 IEC 53)
CAUTION
If using humidistat, install one per ventila-
tion unit.
Controlling more than one ventilation unit
with a single humidity controller may pre-
vent normal humidity operation and cause
water leakage, etc.
!