Operation Description; Outline Of Air Conditioner Control - Toshiba RAS-13UKHP-ES4 Service Manual

7-1. Outline of Air Conditioner Control

This is a fixed capacity type air conditioner, which uses
AC motor for an indoor fan. The AC motor drive
circuit is mounted in the indoor unit. And electrical
parts which driving the compressor and the outdoor
fan motor, are mounted in the outdoor unit.
The air conditioner is controlled by the controller
mounted in the indoor unit. The controller operates all
components based on the commands transmitted from
the remote control and the feedback data of the sensor
is as follow:
• The temperature measurement at the air inlet of
the indoor heat exchanger by the indoor
temperature sensor
• The temperature measurement at the indoor
heat exchanger by the indoor heat exchanger
temperature sensor
• Indoor fan motor operation control
• Louver motor control
• LED display control
• Outdoor fan motor operation control
• 4-WAYS-VALVE operation control
(Heat pump model only)
• Compressor operation control
• Receiving the information of the operation
status and judging the information or the
indication of errors
OPERATION
MODE
RAS-07UK Series
RAS-10UK Series
RAS-10UKH Series
RAS-13UK Series
RAS-13UKH Series

7. OPERATION DESCRIPTION

Cooling
Fan only
Dry
Heat UH
rpm
1350
Air flow volume (m /h) 650
3
rpm
1350
Air flow volume (m /h)
3 650
rpm
1300
630
Air flow volume (m /h)
3
rpm
1350
3
Air flow volume (m /h)
rpm
1350
Air flow volume (m /h)
3
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 [SWING] button is pressed again,
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
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.
LOW
MED
Table 7-1-1
FAN TAP
UH H M
H M
M
H M
1300 1200 1050 1000 950 900 800 750
630 570 490 460 430 400
1300 1250 1050 1000 950 900 800 750
610 490 460 430 400 340 310
630
1250 1200 1100 1000
570 520 460
610
1300 1150 1100 1050 1000 950 900
630 550 520 490 460 430 400
650
1300 1150 1100 1050 1020 950 900
650 630 550 520 490 470 430 400
− 26 −
FILE NO. SVM-05020
, MED, MED
+
LOW+MED
=
+
2
MED+HIGH
=
+
2
L L- UL SL
L L-
L L- UL
L L- UL
700
340 310 280
700
280
900 800 750 700
400 340 310 280
850
800
370
340
850 800
370 340
+
SL
SL
650
250
650
250
650
250
750 700
310 280
750 700
310 280