Mitsubishi PU-5TJSA Service Manual download pdf (Page 25)

Coil frost protection is released when the start condition is not satisfied again during the allowance, or when the COOL mode

stops or changes to another mode.

(2) Indoor fan control

Indoor fan speed LOW/HIGH depends on the remote controller setting.

However, if an outdoor unit abnormality is detected, the indoor fan speed will be LOW, regardless of the remote controller

setting.

(3) Louver control

Louver operation (SWING LOUVER ON / OFF) depends on the remote controller setting.

w Louver comes to the holizontal position automatically after 1 hour operation in law mode.

(4) Detecting abnormalities in the outdoor unit

After the compressor has been continuously operated for 3 minutes, if the difference between the indoor coil temperature

and room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the dif-

ference is still out of RANGE C,the outdoor unit is functioning abnormally. Thus, the compressor will stops and the remote

controller still display this occurrence.

RANGE A : Indoor coil temperature is more than 5 degrees above room temperature.

RANGE B : Indoor coil temperature is within 5 degrees either way of room temperature.

RANGE C : Indoor coil temperature is more than 5 degrees below room tempetature.

(5) Drain pump control

The drain pump works in COOL or DRY operation. When COOL or DRY operation stops or changes to another mode, the

drain pump continues to operate for 3 more minutes.

When both the drain pump and unit are operating, the drain sensor detects the temperature. This temperature tells

whether the drain water level is above or under the drain sensor. If the drain water level rises above the drain sensor due

to a drain pump malfunction, the unit will enter the check mode. The operation will stop and only the drain pump will con-

tinu to operate for 3 more minutes. When either of the following conditions are satisfied, the drain sensor is deamed to be

under water.

● Though the drain sensor has been heated by the drain sensor heater for more than 40 seconds, its temperature rise is

less than 20 degrees.

● The drain sensor temperature is below 63°C.

2-2 DRY operation

MITSUBISHI ELECTRIC

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER

MODE

DRY

FAN

HIGH

LOW

AUTO

STOP

START

1 Press POWER ON/OFF button.

2 Press MODE SELECT button to set operation mode to DRY.

3 Check lamp is ON and set desired temperature with UP or DOWN button.

NOTES : 1. When lamp is ON, press TIMER/TEMP button to change the display

to temperature mode.

2. Set temperature changes by 1°C in the range 18 ~ 29°C each time UP or

DOWN button is pressed.

3. The lighting lamp shows the set temperature, and the flashing lamp shows the

room temperature.

When the room temperature is equal to the set temperature, the lamp keeps

lighting, 0.5 seconds brightly and 0.5 seconds faintly.

TIMER

TEMP.

MITSUBISHI ELECTRIC

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER

MODE

DRY

FAN

HIGH

LOW

AUTO

STOP

START

1 Press POWER ON/OFF button.

2 Press MODE SELECT button to set operation mode to FAN.

NOTES : Temperature can not be set in FAN operation.

! Indoor fan control

The indoor fan speed LOW/HIGH depends on the remote controller setting.

@ Louver control

The louver operation ON/OFF depends on the remote controller setting.

# Drain pump control

The drain pump does not work in FAN operation. As an exception, when COOL mode

changes to FAN mode, the drain pump continues to operate for the first 3 minutes in FAN

operation.

2-3 FAN operation

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Mitsubishi PU-5TJSA Service Manual Page 25

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