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)(25
Ω
) 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
1 2 3 4
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
05
07
09
11
13
15
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.
Содержание AT-C243HLF0
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