LG Multi V Water IV Installation Manual page 93

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.
Table 64:System Component Combinations and Operation Status
Air / Water
Indoor Unit(s)**
Source Units*
Gen 4 Gen 4 ONLY
Gen 4 Gen 4 ONLY
Gen 4 Gen 4 ONLY
Any combination of
Gen 4
Gen 2 and Gen 4
Any combination of
Gen 4
Gen 2 and Gen 4
Any combination of
Gen 2
Gen 2 and Gen 4
*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.
Table 65:Serial Numbers of Water Source Units with Gen 4 Software
Air/Water Source Unit Model Type
Serial Number of Air/Water Source Units
with Gen 4 Software
DIP Switch Settings for Generation 4 Equipment
Water Source Unit DIP
Heat Recovery Unit(s)
Switch No. 3
Model 2A ONLY Must be ON
Model 2A ONLY
Any combination of Must be OFF
Models 0A, 1A, 2A (factory default)
Must be OFF
Model 2A ONLY
(factory default)
Any combination of Must be OFF
Models 0A, 1A, 2A (factory default)
Any combination of
Models 0A, 1A, 2A
Multi V IV Water Source Heat Pump
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
ELECTRICAL CONNECTIONS
Figure 79: Location and Setting of WSU DIP Switch 3
ODU/WSU DIP Switch No. 3
ON
OFF
1 2 3 4 5 6 7
1 2 3 4 5 6 7
System will operate WITH Gen. 4 features.
OFF System will operate but WITHOUT Gen. 4 features.
Does NOT include Gen. 4 features. System will not
operate if DIP Switch No. 3 is ON, and an error code will
N/A*** Does not include Gen. 4 features.
Multi V IV Water Source Heat Recovery
504********* and Higher
ON
OFF
1 2 3 4 5 6 7
1 2 3 4 5 6 7
Operation Status
be generated.
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