LG Multi V Installation Manual

ENGLISH
Installation Manual 105
New Function
2.1 Demand Control
ODU Dry contact has provided Two different methods for Demand control
- Using Contact signal
: High/ Low pressure value s are changed by setting value of Rotary S/W
- Using Analog signal with DDC Module
: High/ Low pressure value s are changed by setting value of DDC Module.(DC 0~10V)
[Rotary S/W setting ]
- Each connecting methods
1. Using Contact signal
<Without External power source> <With External power source>
[Setting ]
SW_STEP Input Signal
0, 1, 2, 3, 4, 5, 6 Contact signal
D, E Analog signal
SW_STEP
Using Contact signal
Using Analog signal with DDC Module
LG does not
supply this section
(Field supply)
Notes
Do not input the voltage signal in
"NON VOLT" setting mode otherwise
it will cause serious damage
SW_VOLT2 SW_VOLT1
Input_3 Input_2 Input_1 comm
Input_LNO comm
LG does not
supply this section
(Field supply)
SW_VOLT2 SW_VOLT1
Input_3 Input_2 Input_1 comm
Input_LNO comm
Connect separate
External voltage of
DC12V

LG Multi V Specifications

General

Type	VRF (Variable Refrigerant Flow)
Compressor Type	Scroll
Refrigerant	R410A
Energy Efficiency	High
Control System	Centralized and individual control options
Indoor Units	Multiple types available (e.g., ceiling cassette, wall-mounted, ducted)