Heat Operation; Louver Control; Cool Airflow Control - Toshiba RAS-10SKH-E Service Manual

7-4. HEAT Operation

(MODE of the remote control : HEAT)
(1) Relays, 4-way valve, outdoor fan and operation
display are controlled as shown in Fig. 7-4-1.
0
–1
Fig. 7-4-1
(2) Relays RY01 and RY02 are turned on to energize
the outdoor unit, and a heat operation is carried
out. The indoor fan motor operates as shown in
Fig. 7-4-2, when the FAN is set to AUTO.
The motor operates with a constant air volume as
listed in Table 7-1-1, when the FAN is set to LOW,
MED, or HIGH.
RY01 OFF
Set
0
temp.
-1
-2
-3
-4
Fig. 7-4-2
(3) Once the setting is made, the operation mode is
memorized in the microcomputer so that the same
operation can be effected thereafter simply by
pushing the START/STOP button.
OFF OFF
ON ON ON
ON ON
FAN
AUTO Manual
LOW
According
LOW(+)
to the set
position
MED(-)
MED
– 14 –

7-4-1. Louver Control

(1) By pushing the SET button of the remote control
during the operation, the louver can be set to the
desired position.
(2) When the AUTO button is pushed, the louver ver-
tically swings within range of 25deg.
And the louver position is stored in the microcom-
puter, and at the next operation, the louvers will
be set to the stored position automatically at the
next operation.

7-4-2. Cool Airflow Control

(1) If the indoor heat-exchanger temperature detected
by the indoor heat-exchanger sensor is 20°C or
below, the indoor fan stops and if the temperature
rises to 25°C or above, the fan is restarted.
Details are in 7-10.