Mitsubishi Electric M Series Manual page 225

M series
d. 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 (approx. 12 V) transmitted from indoor microprocessor.
(2) The horizontal vane angle and mode change as follows by pressing VANE CONTROL button.
AUTO
(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.
(4) VANE AUTO ( ) mode
In VANE AUTO mode, the microprocessor automatically determines the vane angle to make the optimum room
temperature distribution.
In COOL and DRY operation
Vane angle is fixed to Horizontal position.
Horizontal
position
(5) STOP (operation OFF) and ON TIMER standby
In the following cases, the horizontal vane returns to the closed position.
(a) When OPERATE/STOP (ON/OFF) 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 2 ~ 4 when the compressor cumulative operation time
exceeds 1 hour, the vane angle automatically changes to Angle 1 for dew prevention.
(7) SWING ( ) mode
By selecting SWING mode with VANE CONTROL button, the horizontal vane swings vertically.
(8) Cold air prevention in HEAT operation.
The horizontal vane position is set to Upward.
(9) To change the airflow direction not to blow directly onto your body.
To change the airflow
direction
Pressing and holding
VANE CONTROL button
for 2 seconds or more
cause the horizontal vane
to reverse and move to
horizontal position.
Horizontal
position
NOTE :
• If you make the airflow not to blow directly onto your body by pressing VANE CONTROL button, the compressor stops
for 3 minutes even during the operation of the air conditioner.
• The air conditio ner operates with Very Low speed until the compressor turns on again.
(10) ECONO COOL ( ) operation (ECONOmical operation)
When ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C higher.
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.
ECONO COOL operation is cancelled when ECONO COOL button is pressed once again or VANE CONTROL button is
pressed or change to other operation mode.
1 2 3
When to use this
function?
Use this function if The air conditioner starts the cool-
you don't want the air ing or drying operation approx. 3
from the indoor unit to minutes after the vane has moved
blow directly onto your to the horizontal position.
body. • When VANE CONTROL button is
• Depending on the pressed again, the vane returns
shape of the room, to the previously-set position
the air may blow and the air conditioner starts the
directly onto your cool or dry operation in approx. 3
body. minutes.
• Press VANE
CONTROL button
again to return the
vane to the previously-
set position.
WALL-MOUNTED MSZ-HC•VA/B Series
4 SWING
In HEAT operation
Vane angle is fixed to Angle 4.
COOL/DRY
The air conditioner starts heating
operation approx. 3 minutes after
the vane has moved to the hori-
zontal position.
• Sometimes the area around your
feet may not warm. To warm the
area around the feet, set the hori-
zontal vane to
downward-blowing position.
• When VANE CONTROL button is
pressed again, the vane returns
to the previously-set position and
the air conditioner starts the heat
operation in approx. 3 minutes.
HEAT
(AUTO) or the
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