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9-6. AUTO VANE OPERATION
1. Horizontal vane
(1) Vane motor drive
These models are equipped with a stepping motor for the horizontal vane. The rotating direction, speed, and angle of
the motor are controlled by pulse signals (approximately 12 V) transmitted from indoor microprocessor.
(2) The horizontal vane angle and mode change as follows by pressing VANE CONTROL button.
(3) Positioning
To confirm the standard position, the vane moves until it touches the vane stopper. Then the vane is set to the
selected angle.
Confirming of standard position is performed in the following cases:
(a) When the operation starts or finishes (including timer operation).
(b) When the test run starts.
(c) When standby mode (only during multi system operation) starts or finishes.
(4) VANE AUTO ( ) mode
In VANE AUTO mode, the microprocessor automatically determines the vane angle to make the optimum room tem-
perature distribution.
Horizontal
position
4
In COOL and DRY operation
Vane angle is fixed to Horizontal position.
In HEAT operation
Vane angle is fixed to Angle 4.
AUTO
1
2
3
4
5
SWING
(7) SWING ( ) mode
By selecting SWING mode with VANE CONTROL button, the horizontal vanes swing vertically.
When COOL, DRY or FAN mode is selected, only the upper vane swings.
(8) Cold air prevention in HEAT operation
The horizontal vane position is set to upward.
NOTE:
When 2 or more indoor units are operated with multi outdoor unit, even if any indoor unit turns thermostat off,
this control does not work in the indoor unit.
(5) STOP (operation OFF) and ON TIMER standby
In the following cases, the horizontal vane returns to the closed position.
(a) When STOP/OPERATE (OFF/ON) button is pressed (POWER OFF).
(b) When the operation is stopped by the emergency operation.
(c) When ON TIMER is ON standby.
(6) Dew prevention
During COOL or DRY operation with the vane angle at Angle 5
[MSZ-AP25/35/42/50VG, MSZ-AP25/35/42/50VGK]
Angle 4 or 5
[MSZ-AP60/71VG, MSZ-AP60/71VGK]
when the compressor cumulative operation time exceeds 1
hour, the vane angle automatically changes to Angle 4
[MSZ-AP25/35/42/50VG, MSZ-AP25/35/42/50VGK]
/Angle 3
[MSZ-AP60/71VG, MSZ-AP60/71VGK]
for dew prevention.
(9) ECONO COOL ( ) operation (ECONOmical operation)
When ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C higher by the micro-
processor. However, the temperature on the LCD screen on the remote controller is not changed. Also the horizontal
vane swings in various cycle.
SWING operation makes you feel cooler than set temperature. So, even though the set temperature is higher, the air
conditioner can keep comfort. As a result, energy can be saved.
To cancel this operation, select a different mode or press one of the following buttons in ECONO COOL operation:
ECONO COOL, VANE CONTROL, LONG
[MSZ-AP60/71VG, MSZ-AP60/71VGK]
or POWERFUL
[MSZ-AP60/71VG,
MSZ-AP60/71VGK]
button.
(10) POWERFUL ( ) operation
[MSZ-AP60/71VG, MSZ-AP60/71VGK]
The air conditioner automatically adjusts the fan speed and the set temperature, and operates the POWERFUL mode.
The POWERFUL mode is cancelled automatically 15 minutes after operation starts, or when POWERFUL button
is pressed once again within 15 minutes after operation starts. The operation mode returns to the mode prior to
POWERFUL operation. POWERFUL mode also is cancelled, when the STOP/OPERATE (OFF/ON), ECONO COOL,
FAN SPEED CONTROL or i-save button is pressed within 15 minutes after operation starts, or operation mode is
changed.
OBH788C
