LG ARUM072BTE5 Installation Manual page 124

PRE-COMMISSIONING
Setting the Optional Modes
Cool / Heat Selector (Fn1)
The setting communicates to the outdoor unit that the optional LG Cool / Heat Selector is connected. The
Cool / Heat Selector is field-wired to the "Dry 1" and "Dry 2" terminals located on the master outdoor unit
main PCB.
Use the Cool / Heat Selector in heat pump systems (when all indoor units have to be in the same mode)
to set the system mode for all cooling operation, all heating operation, or fan operation.
Recommended for use in heat pump systems only.
Setting the Cool / Heat Selector Function.
Turn No. 5 on the master outdoor unit PCB DIP switch bank SW01 to ON.
Select the "Func" mode by using the SW03C forward ►button and the SW02C backward ◄ button, and
Select the "Fn1" function by using the SW03C forward ►button and the SW02C backward ◄ button, and
Select from "oFF", "op1," or "op2" options (see table below) by using the SW03C forward ►button and the
SW02C backward ◄ button, and then press the SW01C confirm ● button.
The Cool / Heat Selector function is set. PCB does not need reset.
Table 46: Cool / Heat Selector Function Settings.
Switch Control
Switch (Up)
Right Side (On)
Right Side (On)
Left Side (Off)
• The Cool / Heat Selector must be installed first before setting the cool / heat operation function.
• A trained LG service provider must set this function during system installation.
• If cool or heat function is not used, set to OFF.
• Cool / Heat Selector is not for use with central control.
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then press the SW01C confirm ● button.
then press the SW01C confirm ● button.
Switch (Down)
Left Side (On) Not Operating
Right Side (On) Not Operating
- Not Operating
Due to our policy of continuous product innovation, some specifications may change without notification.
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Function
oFF op1 (Mode)
Cooling
Heating
Fan Mode
Cool / Heat Selector.
Left Side Right Side
Switch
(Up)
Switch
(Down)
op2 (Mode)
Cooling
Heating
Off