Wiring Connection - LG LZ-H050GXN4 Quick Manual

INSTALLATION MANUAL
6
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.
Main Power
Terminal Block
Communication
Terminal Block
Input from outside
(Indoor unit or
MultiV outdoor unit)
Connect the wires to the terminals on the control board individually
according to the outdoor unitconnection.
- Ensure that the color of the wires of outdoor unit and the terminal No.
are the same as those of indoor unit respectively.
SODU
Terminal Block Indoor
4 3 2(N) 1(L) B
Ventilation unit
Power Input
CAUTION
!
The Power cord connected to the unit
should be selected according to the follow-
ing specifications.
WARNING
!
Make sure that the screws of the terminal
are free from looseness.

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
Main
power source
Ventilation unit
Accessory
Terminal Block
Short-circuit wire
Remove when installing
the humidistat.
(locally procured)
Power supply wiring
Ground wiring
INTERNET DRY1 DRY2 GND 12V Outdoor
IDU
unit
A B A B A
ELCB
Switch box
Outdoor
Ventilation unit
Model Hz Volts
LZ-H050GXN4 /
LZ-H050GXH4
LZ-H080GXN4 /
50 220 - 240 V
LZ-H080GXH4
LZ-H100GXN4 /
LZ-H100GXH4
MCA : Min. Circuit Amps (A) ;
MOP : Maximum Over current Protection
kW : Fan Motor Rated Output (kW) ;
FLA : Full Load Amps (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)
1 Phase(Ø)
Precautions when laying power wiring
Use round pressure terminals for connections to the power terminal
block.
Round pressure terminal
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.
Sheathed wire (should be complied with IEC60245
Wiring specifications
standard)
Size 0.75 - 1.25 mm
Legth MAX. 100 m
External contact Normally closed contact
specifications (Currenttolerance 10 mA - 0.5 A)
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.
Insulation material of supply line shall be at least those of ordinary
tough rubber sheathed. (code designation 60245 IEC 53)
Power supply Fan motor
Voltage range MCA MOP kW
2.8 8 0.2x2 1.25x2
Max. 264 V
2.8 8 0.2x2 1.25x2
Min. 198V
2.8 8 0.2x2 1.25x2
Power wire
2
FLA