Mitsubishi Electronics MSZ-FD35VAS, MSZ-FD25VAS service manual Vertical vane, COOL/DRY Heat

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(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.

NOTE : When 2 or more indoor units are operated with multi outdoor unit, even if any indoor unit turns thermostat off, this control doesn’t work in the indoor unit.

(9) To change the airflow direction not to blow directly onto your body.

To change the air

When to use this function?

COOL/DRY

 

HEAT

flow direction

 

 

 

 

 

 

 

 

 

Pressing and holding

Use this function if you don’t

The air conditioner starts the

The air conditioner starts heat-

VANE CONTROL

want the air from the indoor

cooling or drying operation

ing operation approx. 3 minutes

button for 2 seconds

unit to blow directly onto your

approx. 3 minutes after the

after the vane has moved to the

or more cause

body.

vane has moved to the hori-

horizontal position.

the horizontal vane

• Depending on the shape of

zontal position.

Sometimes the area

to reverse and

the room, the air may blow

• When VANE CONTROL

 

around your feet may not

move to horizontal

directly onto your body.

button is pressed again,

 

warm. To warm the area

position.

• Press VANE CONTROL

the vane returns to the

 

around the feet, set the

 

previously-set position

 

horizontal vane to

 

button again to return the

and the air conditioner

 

(AUTO) or the downward-

 

vane to the previously-set

starts the cool or dry

 

blowing position.

 

position.

operation in approx.

 

 

Horizontal

 

3 minutes.

When VANE CONTROL

 

 

 

button is pressed again,

position

 

 

 

 

 

 

the vane returns to the

 

 

 

 

 

 

 

 

previously-set position

 

 

 

 

and the air conditioner

 

 

 

 

starts the heat operation

 

 

 

 

in approx. 3 minutes.

 

 

 

 

 

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 conditioner 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 changed to other operation mode.

2. Vertical vane

(1)Vane motor drive

These models are equipped with a stepping motor for the vertical vane. The rotating direction, speed, and angle of the motor are controlled by pulse signals (approx. 12 V) transmitted from microprocessor.

(2)The vertical vane angle and mode change as follows by pressing WIDE VANE button.

1 2 3 4 5

(SWING)

(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)OPERATE/STOP(ON/OFF) button is pressed (POWER ON or OFF).

(b)SWING is started.

(c)The power supply turns ON.

(4)SWING( ) MODE

By selecting SWING mode with WIDE VANE button, the vertical vane swings horizontally. The remote controller dis- plays “ .”Swing mode is cancelled when WIDE MODE button is pressed once again.

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Contents MSZ-FD25VA E1 MSZ-FD25VAS E1 MSZ-FD35VA E1 MSZ-FD35VAS E1 Page Technical Changes Part Names and Functions See control operationIndoor model SpecificationSpecifications and rating conditions of main electric parts Noise Criteria Curves MSZ-FD25VA MSZ-FD25VASUnit mm Outlines and DimensionsWiring Diagram Refrigerant System Diagram Unit mmP.C. Board Modification for Individual Operation Service FunctionsTimer Short Mode J1 J2Operation Remote ControllerAuto Restart Function Microprocessor Control OPERATE/STOPDRY Operation Auto Change Over ··· Auto Mode OperationCool Operation Heat OperationHorizontal vane Auto Vane OperationOutdoor Unit MXZ series Vertical vane COOL/DRY HeatSee Sensor Area SettingSee Control Operation Daytime Plasma Operation Operation and operating rangeProgram Timer Clean OperationTimer Operation EMERGENCY/TEST Operation Minute Time Delay OperationEmergency Operation switch E.O.SW Troubleshooting Failure Mode Recall Function OFFFlow chart of Plasma operation failure mode recall function Plasma operation checkIndoor unit failure mode table Plasma operation failure mode tableInstruction of Troubleshooting StartTroubleshooting Check Table An abnormality other than above mentioned is detectedPlasma Trouble Criterion of Main Parts Troubleshooting Flow Power lamp flashes 3-time Indoor fan does not operateYes Check of indoor P.C. board and indoor fan motor How to check miswiring and serial signal error Check of installation of the horizontal vane Electromagnetic noise enters into TV sets or radios SW P.C. Board Test Point Diagram and VoltageIndoor electronic control P.C. board CN1 Disassembly Instructions Removing the panel PhotoPower monitor receiver Removing the vertical vane motor unit Photo Removing the nozzle assembly PhotoRemoving the electrical box Photo Removing the horizontal vane motor Photo Removing the indoor fan motor and the line flow fan PhotoSpecifications subject to change without notice