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Service Manual 31
Installation
2) Adjusting air volume to the height of ceiling
You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to supply the com-
fortable atmosphere to consumers.
Procedure
1. Choose the selectable position in the table after measuring the height of ceiling.
2. In the case of changing the height as "high" or "low", open the rear cover of the wired remote-controller.
3. Move the slide switch to the set position.
4. Close the rear cover and check if it works nomally.
Slide switch for
ceiling height
1
2
3
1
2
3
1
2
3
Ceiling height Mode of slide switch Change of air volume Remark
more than 3.3m(10.8ft) High Ceiling Increasing
2.7~3.3m(8.9~10.8ft) Standard -
less than 2.7m(8.9ft) Low Ceiling Decreasing
Maunfactured in stan-
dard mode
3) Group Control
• Be careful not to exchange the color of wires.
• The maximum length of connecting wire should be below 200m(656ft)(25Ω) on connecting each units.
• Use a wire more than 0.5mm
2
CAUTION
It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent
overcurrent.
Wiring design
Operation unit
ZONE
1234
Humidify
JET
AUTO
AUTO SWING OPERATION
FAN SPEED
Program set
SUB FUNCTION
SET TEMP
Room Temp
HI
MED
LO
Heater
Defrost
Filter
Preheat
Out door
Time
Timer
On
Set no.Time
Off
01 03 0507 09 11 1315 17 19 21 23
Indoor Unit 1
Terminal(Local Supply)
Block
Terminal(Local Supply)
Block
Terminal(Local Supply)
Block
Main PCB
#1
Main PCB
#2
Main PCB
#16
Wired Remote Controller
Indoor Unit 2
Main PCB
Indoor Unit 16
Connector
RED(12V)
YL(SIGNAL)
BR(GND)
RED(12V)
YL(SIGNAL)
BR(GND)
YL(SIGNAL)
BR(GND)
Connecting Cable(Local Supply)
Connector Connector
....
....
YL(SIGNAL)
BR(GND)
YL(SIGNAL)
BR(GND)
YL(SIGNAL)
BR(GND)
Remote
Controller
PCB
Single Control
Group Control 1
Group Control 2
S/W GR
• Using the supplied Wired Remote Controller, wire
them like above.
• Move S/W GR to "Group Control 1" position.
• Check the line color of the wire.