LG Multi V Water IV - Electrical Connections: DIP Switch Settings for Generation 4 Equipment; Generation 4 Equipment Requirements; WSU DIP Switch 3 Location and Setting; System Component Combinations and Operation Status

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Electrical System Installation
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ELECTRICAL CONNECTIONS
DIP Switch Settings for Generation 4 Equipment
Generation 4 Equipment
The latest versions of LG’s indoor units and water source units are designated Generation 4 (Gen 4). For Gen 4 units to operate with Gen 4
features, the air conditioning system must meet the following requirements:
• All indoor units, heat recovery units, and water source units
must be Gen 4.
• All water source units must have Gen 4 software
installed.
• Water source units DIP switch 3 must be set to ON
(factory default setting is OFF).
• All controllers must support Gen 4 features.
Figure 74 shows the ODU DIP switch. Table 77 lists how combin-
ing different components will affect system operation. Table 78 lists
the serial numbers of air and water source units that have Gen 4
software. All air and water source units, indoor units, heat recovery
units, and controllers in a system must be Gen 4 compatible or the
system will not operate with Gen 4 features.
Air / Water
Source Units*
Indoor Unit(s)** Heat Recovery Unit(s)
Water Source Unit DIP
Switch No. 3
Operation Status
Gen 4 Gen 4 ONLY Model 2A ONLY Must be ON System will operate WITH Gen. 4 features.
Gen 4 Gen 4 ONLY Model 2A ONLY OFF System will operate but WITHOUT Gen. 4 features.
Gen 4 Gen 4 ONLY
Any combination of
Models 0A, 1A, 2A
Must be OFF
(factory default)
Does NOT include Gen. 4 features. System will not
operate if DIP Switch No. 3 is ON, and an error code will
be generated.
Gen 4
Any combination of
Gen 2 and Gen 4
Model 2A ONLY
Must be OFF
(factory default)
Gen 4
Any combination of
Gen 2 and Gen 4
Any combination of
Models 0A, 1A, 2A
Must be OFF
(factory default)
Gen 2
Any combination of
Gen 2 and Gen 4
Any combination of
Models 0A, 1A, 2A
N/A*** Does not include Gen. 4 features.
Figure 79: Location and Setting of WSU DIP Switch 3
1 2 76543
1 2 76543
ON
OFF
1 2 76543
1 2 76543
ON
OFF
ODU/WSU DIP Switch No. 3
Table 64:System Component Combinations and Operation Status
*Gen 4 Water Source Units = Multi V Water IV with Gen 4 software (see table below for Gen 4 serial numbers).
Gen 2 Water Source Units = Multi V Water II, Multi V Water IV without Gen. 4 software.
**Gen 4 Indoor Units model numbers end in “4”; Gen 2 Indoor Units model numbers end in “2” or an “A”, including Hydro Kit.
***DIP Switch No. 3 on Gen 2 water source units is not related to Gen 4 features as it is with Gen 4 water source units.
Air/Water Source Unit Model Type Multi V IV Water Source Heat Pump Multi V IV Water Source Heat Recovery
Serial Number of Air/Water Source Units
with Gen 4 Software
504********* and Higher
Table 65:Serial Numbers of Water Source Units with Gen 4 Software