Mitsubishi Electric MS-30SV-A1 Service Manual page 20

(8) ECONO COOL ( ) operation (ECONOmical operation)
When the ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C higher than that in
COOL mode.
Also the horizontal vane swings in various cycle according to the temperature of indoor heat exchanger(Tp
SWING operation makes you feel cooler than set temperature. So, even though the set temperature is higher than that in
COOL mode, the air conditioner can keep comfort. As a result, energy can be saved.
ECONO COOL operation is cancelled when the ECONO COOL button is pressed once again or VANE button is pressed
or LONG button is pressed or change to other operation mode.
NOTE : ECONO COOL operation does not work in COOL mode of "I FEEL CONTROL".
SWING operation
In swing operation of ECONO COOL operation air flow is initially blew out upward(levelly).
According to the temperature of indoor coil thermistor Tp
decided. Then when the downward blow has been finished, next upward blow time is decided.
For initial 10 minutes the swing operation is performed in table G~H for quick cooling(but G : Tp
Also, after 10 minutes when the difference of set temperature and room temperature is more than 2:, the swing opera-
tion is performed in table D~H for more cooling(but D: Tp
The air conditioner repeats the swing operation in various cycle as follows.
Temperature of Tp
A
B
C
D
E
F
G
more than 24°C
H
w 1 Tp : Minimum value of indoor coil thermistor (main) RT12 and indoor coil thermistor (sub) RT13
(9) LONG MODE ( )
By pressing the LONG button fan speed becomes higher than setting fan speed on the remote controller, and the hori-
zontal vane moves to the position for LONG mode. The remote controller displays "
when the LONG button is pressed once again or the VANE button is pressed or in COOL mode ECONO COOL button is
pressed.
• In the following example, the vertical vane is set to
2. Vertical vane
(1) Vane motor drive
This model is equipped with a stepping motor for the vertical vane. The rotating direction, speed, and angle of the
motor are controlled by pulse signals (approx. 12V) transmitted from indoor microprocessor.
(2) The vertical vane angle and mode changes as follows by pressing the WIDE VANE button.
1
(w 1)
15°C or less
15°C to 17°C
17°C to 18°C
18 °C to 20 °C
20°C to 21°C
21°C to 22°C
22°C to 24°C
COOL / DRY
Fan speed : Higher
Solid arrow : When the LONG mode is used.
Dotted arrow : When the LONG mode is not used.
2 3
at starting of this operation, next downward blow time is
(w 1)
is 20: or less).
(w 1)
Downward blow time
(s)
2
5
8
11
14
17
20
23
(front.).
FAN
4 SWING
20
is 24: or less).
(w 1)
Upward(level) blow time
(s)
23
20
17
14
11
8
5
2
". LONG mode is cancelled
5 6
).
(w 1)