– 22 –
FILE NO. SVM-02001
7. OPERATION DESCRIPTION
7-1-1. Louver Control
(1) Vertical air flow louver
Position of veritcal air flow louver is automatically
controlled according to the operation mode.
Besides, position of vertical air flow louver can be
arbitrarily set by pressing [FIX] button.
The louver position which is set by [FIX] button is
stored in the microcontroller, and the louver is
automatically set at the stored position for the next
operation.
(2) Swing
If [SWING] button is pressed when the indoor unit
is in operation, the vertical air flow louver starts
swinging. When [FIX] button is pressed, it stops
swinging.
7-1-2. Indoor Fan Control (AC Fan Motor)
(1) The indoor fan is operated by the stepless speed
change AC motor.
(2) For air flow level, speed of the indoor fan motor is
controlled in five steps (LOW, LOW
+
, MED, MED
+
and HIGH). If AUTO mode is selected, the fan
motor speed is automatically controlled by the
difference between the preset temperature and
the room temperature.
Table 7-1-1
RAS-07UKHP-E RAS-10UKHP-E RAS-13UKHP-E
Model Motor speed Air flow level Motor speed Air flow level Motor speed Air flow level
(rpm) (m3/h) (rpm) (m3/h) (rpm) (m3/h)
HIGH 1,200 570 1,200 570 1,300 630
Cooling MED+ 1,100 520 1,100 520 1,200 570
and MED 1,000 460 1,000 460 1,100 520
Fan only LOW+ 900 400 900 400 1,020 470
LOW 800 340 800 340 950 430
HIGH 1,250 610 1,250 610 1,350 650
MED+ 1,150 550 1,170 560 1,250 610
Heating MED 1,050 490 1,100 520 1,150 550
LOW+ 980 450 1,000 460 1,100 520
LOW 900 400 900 400 1,050 490
Model
RAS-07UKP-E RAS-10UKP-E RAS-13UKP-E
RAS-07UKPX RAS-10UKPX RAS-13UKPX
HIGH 1,200 570 1,300 630 1,300 630
Cooling MED+ 1,100 520 1,180 560 1,220 600
and MED 1,000 460 1,050 490 1,150 550
Fan only LOW+ 900 400 950 430 1,070 500
LOW 800 340 850 370 1,000 460
7-1. Outline of Air Conditioner Control
This is a fixed capacity type air conditioner, which uses
a AC motor for an indoor fan. The AC motor drive
circuit is mounted in the indoor unit. And electrical
parts which operate the compressor and the outdoor
fan motor, are mounted in the outdoor unit.
The air conditioner is mainly controlled by the indoor
unit controller. The controller operates the indoor fan
motor based upon commands transmitted by the
remote control and transfers the operation commands
to the outdoor unit controller.
The outdoor unit controller receives operation
commands from the indoor unit, and operates the
outdoor fan motor and the compressor.
(1) Role of indoor unit controller
The indoor unit controller receives the operation
commands from the remote control and executes
them.
• Temperature measurement at the air inlet of the
indoor heat exchanger by the indoor temperature sensor
• Temperature setting of the indoor heat exchanger
by the heat exchanger sensor
• Louver motor control
• Indoor fan motor operation control
• LED display control
• Transferring of operation commands to the
outdoor unit
• Receiving of information of the operation status
and judging of the information or indication of
error
LOW+=
MED+=
LOW+MED
2
MED+HIGH
2