Mitsubishi Electric MSZ-FH15NA Service Manual download pdf (Page 14)

(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.

(9) ECONO COOL (

) operation (ECONOmical operation)

When ECONO COOL button is pressed in COOL mode, set temperature is automatically set 4°F (2°C) higher by the

microprocessor. However, the temperature on the LCD screen on the remote controller is not changed. Also the hori-

zontal 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, POWERFUL or NATURAL FLOW button.

(10) POWERFUL ( ) operation

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 OPERATE/STOP (ON/OFF), ECONO COOL,

FAN SPEED CONTROL, NATURAL FLOW or SMART SET button is pressed within 15 minutes after operation starts, or

operation mode is changed.

Horizontal

position

In COOL and DRY operation

Vane angle is fixed to Horizontal position.

In HEAT operation

Vane angle is fixed to Angle 4.

(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.

(6) Dew prevention

During COOL or DRY operation with the vane angle at Angle 4 or 5 when the compressor cumulative operation time

exceeds 1 hour, the vane angle automatically changes to Angle 3 for dew prevention.

(3) Positioning

To confirm the standard position, the vane move until it touches the vane stopper. Then the vane is set to the select-

ed 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 tem-

perature distribution.

OBH683

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Mitsubishi Electric MSZ-FH15NA Service Manual Page 14

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