6. SYSTEM DESIGN
 INDOOR UNIT (setting by wireless remote controller)5-3.
The function settings of the control of the indoor unit can be changed by this procedure 
according to the installation conditions. Incorrect settings can cause the indoor unit to 
malfunction.
After the power is turned on, perform the “FUNCTION SETTING” according to the 
installation conditions using the remote controller.
The settings may be selected between the following two: Function Number or Setting 
Number.
Settings will not be changed if disable numbers or setting numbers are selected.
PREPARATION
(1) Turn on the power through the Branch box.
Before turning on the power of the indoor units, make sure the piping air-tight test and vacuuming have 
been conducted.
Also check again to make sure no wiring mistakes were made before turning on the power. 
Indoor 
units
Branch box
Breaker ON
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SYSTEM
DESIGN
SYSTEM
DESIGN