Mitsubishi PU-5TJSA Service Manual download pdf (Page 23)

MICROPROCESSOR CONTROL9

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.OUTLINE OF MICROPROCESSOR CONTROL

● OFF-ON switching.

● COOL/DRY-FAN selector switching.

● Thermostat setting.

● HIGH-LOW fan speed switching.

● Swing louvers SWING-FIXED switching.

● TIMER mode selector switching.

● Timer setting.

● Self diagnostic troubleshooting.

● Test run switching.

● Room temperature thermistor.

● Indoor coil thermistor.

● Compressor protection device working

● Compressor motor and outdoor fan motor :

ON - OFF

● Fan : ON - OFF.

● Fan speed : HIGH - LOW

● Swing louver : ON-OFF

● Emergency stop.

OUTPUT to indoor unit

INPUT from indoor unit

INPUT to remote controller

● Transmits and receives orders.

REMOTE CONTROLLER

OUTPUT to remote controller

INDOOR CONTROLLER BOARD

● Receives orders from remote controller and temperature data from

indoor unit.

● Processes orders and data.

● Transmits the power of indication LED to remote controller

● Controls indoor and outdoor operation.

● Self diagnostic function.

w System control operation.<Optional>

w Emergency operation.

12VDC

Polar, twelve (12) - core cable

Maximum length 50m (164ft)

Non - polar, two (2) - core cable

Outdoor unit

● Indication LED lights.

Indoor unit

OUTPUT to outdoor unit

INPUT from outdoor unit

OUTDOOR UNIT

● Receives order from indoor

controller.

● Emergency stop.

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Mitsubishi PU-5TJSA Service Manual Page 23

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