Service manual

27
MICROPROCESSOR CONTROL10
TEMP
ON / OFF
NOT AVAILABLE
AM
PM
AM
PM
˚C
1. OUTLINE OF MICROPROCESSOR CONTROL
● OFF-ON switching.
● COOL • DRY • FAN selector switching.
● HIGH-LOW fan speed switching.
● TIMER mode selector-switching
● Timer setting.
● Self diagnostic troubleshooting.
● TEST RUN switching.
● CHECK mode switching.
● AUTO Vane setting.
● Room temperature thermistor.
● Indoor coil thermistor.
Independent Control of
Outdoor Unit
OUTPUT to indoor unit
INPUT from indoor unit
INPUT to remote controller OUTPUT to remote controller
● Indication LCD lights.
12VDC
Indoor unit
● Receives orders from remote controller and temperature
data from indoor unit.
● Processes orders and data.
● Controls indoor and outdoor operation.
● Self diagnostic function
w System control operation.<Optional>
w Emergency operation
● Fan: ON-OFF.
● Fan speed: HIGH-LOW.
● AUTO vane’s angle setting.
● Emergency stop.
INPUT from outdoor unit
● Compressor protection device working.
OUTPUT from outdoor unit
● Compressor motor and outdoor fan motor : ON-OFF.
OUTPUT UNIT
● Receives orders from
indoor controller.
● Emergency stop.
Non-polar, two (2) - core cable
Outdoor unit
INDOOR CONTROLLER BOARD
REMOTE CONTROLLER
●Processes and transmits orders.
PK-1.6FLA
3
PK-2FLA3
PK-2.5FLA2/3
PK-3FLA2/3/4
PK-4FLSA2/3
PK-2.5FLA4
PK-3FLA5
PK-4FLSA4
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