LG MULTI V ARNU073BGA4 Installation Manual page 54

WIRING
High-Static Ducted BH Chassis
CONNECTOR
CN-POWER
CN-MOTOR1
CN-DAMPER
CN-ZONE
CN-EXT
CN-EEV
CN-OPTION
CN-DISPLAY
CN-PTC
CN-CC
CN-HUMID
CN-LEAK
CN-FLOAT
CN-PIPE/OUT
CN-WF
CN-AIRC
CN-PIPE/IN
CN-ROOM
CN-REMO
CN-D/PUMP
CN-485
DIP Switch Setting
SW3 GROUP CONTROL
DRY CONTACT
SW4
MODE
SW5 CONTINUOUS FAN
*For Gen 4 Multi V ducted indoor units, DIP Switches 1, 2, 6 through 8 must be set to OFF. These DIP switches are used for
other models.
**To enable Generation 4 features, outdoor unit DIP Switch No. 3 must be set to ON. Please refer to the Multi V IV, Multi V Wa-
ter IV, Multi V S Engineering Manual for additional information.
54
Table 21: High-Static Ducted BH Chassis Wiring Diagram
AC Power supply
Fan motor output
N / A
Zone controller
External on / off controller
EEV Output
Optional PCB EPROM
Display
Auxiliary heater
Dry contact
N / A
Leak detector
Float switch input
Discharge pipe sensor
N / A
N / A
Suction pipe sensor
Room sensor
Wired remote controller
Drain pump output
Communication
Table 22: BH Chassis DIP Switch Settings
Off On
Master Slave
Variable Auto
Off On
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PURPOSE
AC Power line
Motor output of BLDC
N / A
Zone controller connection
External on / off Controller connection
EEV control output
Option PCB connection
Display of indoor status
Connection for Auxiliary Heater
Dry Contact connection
N / A
Leak detector connection
Float switch sensing
Pipe out thermistor
N / A
N / A
Pipe in thermistor
Room air thermistor
Wired remote control connection
AC output for drain pump
Connection between indoor and outdoor units
Group control setting using 7-Day Programmable Controller; selects Master /
Slave on each indoor unit
Sets operation mode for optional Dry Contact accessory
1. Variable: Auto or Manual Mode can be set through 7-Day Programmable
Controller or Wireless Remote Controller (factory default setting is Auto if
there is no setting)
2. Auto: For Dry Contact, it is always Auto mode
Selects continuous fan for ducted indoor units.
1. On: Indoor unit fan will always operate at a set fan speed, except when
the system is off, or the outdoor unit is in defrost mode (when the oudoor unit
is in defrost mode, the fan will operate at super low fan speed)
2. Off: Indoor unit fan speed can be changed by on / off
FUNCTION
Remarks