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COMMUNICATION LINE CONNECTIONS AND DIP
Heat Pump Communication Line
Connections
• Communication Line (A) is not connected when shipped (factory
default: disconnected).
• Communication Line (A) MUST be connected for Hybrid Heat
Pump (LG Outdoor Unit + A-Coil + Gas Furnace) applications.
• Yellow Terminal Block (B) is for the Gas Furnace and Third-party
Thermostat connections.
WARNING
All power wiring and communication cable installation must be per-
formed by trained service providers working in accordance with local,
state, and National Electrical Code (NEC) / UL / ETL federal regulations
related to electrical equipment and wiring, and following the manufac-
turer product diagrams, requirements, and instructions in this manual.
Failure to do so will lead to electric shock which can cause physical
injury or death.
Heat Pump Communication Kit DIP
Switch Setting
Figure 10: SW-01 DIP Switch Heat Pump Communication Kit Default
Setting (All Off).
1
2
3
4
Table 24: Heat Pump Communication Kit DIP Switch Functions.
DIP Switch
1
2
3
4
1
2
3
4
5
6
7
8
*Thermostat Heat Pump Setting
For Hybrid Heat Pump and A-Coil / Gas Furnace combinations, only SW-01 DIP Switch No. 3 needs to be set on the communication kit.
• O Type: Heating (Open) / Cooling (Close)
• B Type: Heating (Close) / Cooling (Open)
O Type is usually the default for heat pump settings; it can be adjusted by the thermostat.
5
6
7
Function
Heat Pump Outdoor Unit Communication
Remote Controller
Thermostat Heat Pump Outdoor Unit Setting*
Reserved
5
6
7
Reserved
Reserved
Reserved
Reserved
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.
SWITCH SETTINGS
Figure 9: Communications Cable (A) MUST be Connected for Gas Fur-
nace and Third-Party Thermostat Applications (Default: Disconnected)
1
2
Figure 11: SW-01 DIP Switch Heat Pump Communication Kit Setting for
A-Coil / Gas Furnace.
8
1
2
For Test Purposes (Standard)
8
3
4
5
6
3
4
5
6
ON
-
B Type
-
-
-
-
-
APPLICATION | 29
8
7
7
8
OFF
-
-
O Type
-
-
-
-
-
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