LG Multi V5 Service Manual

101
PCB Settings
Due to our policy of continuous product innovation, some specifications may change without notification.
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Figure 45: Adjusting the Heat Recovery Unit Addresses.
• Rotary switch SW05M must be set to "0"’ when install-
ing only one heat recovery unit.
• When installing multiple heat recovery units, address
each unit with sequentially increasing numbers start-
ing from "0".
1
2
3
4
1
2
3
4
1
2
3
4
AB AB AB
2. SW05M Function (Rotary Switch for Addressing Heat Recovery Units).
6:06:06:0',3DQG7DFW6ZLWFKHVIRU0DQXDO9DOYH
Addressing
Non-zoning (Normal Setting).
• Set the address of the heat recovery unit valve to the central control address of the connected indoor unit.
• SW01M: Select the valve to address.
• SW03M: Increases the valve address by ten (10).
• SW04M: Increases the valve address by one (1).
Each indoor unit must have a unique, preset central control address (using its wired controller) before manual valve addressing can occur.
PCB Component S/W No. Set Up
No. 1 Manual Addressing Valve No. 1
No. 2 Manual Addressing Valve No. 2
No. 3 Manual Addressing Valve No. 3
No. 4 Manual Addressing Valve No. 4
SW03M Increases the Valve Address by Ten (10)
SW04M Increases the Valve Address by One (1)
1
12 43
ON
OFF
2
3
4
SW01M
Table 56: Settings for Manual Valve Addressing, Non-Zoning.
If large capacity indoor units (larger than 54,000 Btu/h) are installed, the Y-branch pipe shown in the table below must be used to twin the ports.
Kit Model
No.
Vapor Pipe Dimensions Liquid Pipe Dimensions
Unit:
Inch
ARBLN03321
16-1/4
15-3/8
I.D. 3/4
I.D. 3/4
I.D. 3/4
I.D. 1/2
I.D. 1/2
2-3/4
I.D. 5/8
I.D. 5/8
I.D. 1
I.D. 1
O.D. 1
3-3/16
4-3/8
3-5/16
2
3
3
O.D. 3/4
O.D. 3/4
12
I.D. 7/8
I.D. 7/8
I.D. 7/8
I.D. 1-1/8
1
I.D. 1/2
I.D. 1/2
I.D. 1/2
13-1/16
12-5/8
I.D. 1/4
I.D. 1/4
I.D. 3/8
I.D. 3/8
I.D. 3/8
2-15/16
Vapor Pipe
Model No.
Liquid Pipe
Model No.
AJR54072902
AJR54072906
HEAT RECOVERY UNIT SETTINGS

LG Multi V5 Specifications

General

Compressor Type	Inverter Scroll
Refrigerant	R410A
Energy Efficiency	High
Heat Recovery	Available
Smart Diagnosis	Yes
Type	VRF (Variable Refrigerant Flow)
Control	Centralized Control
Power Supply	380-415V / 3Ph / 50Hz