20
21
21
8
MICROPROCESSOR CONTROL
● Compressor and
outdoor fan :
ON-OFF
● Operation mode
change :COOL-
HEAT
1. OUTLINE OF MICROPROCESSOR CONTROL
● OFF-ON switching
● COOL/DRY-AUTO-HEAT selector switching
● Thermostat setting
● TIMER mode selector-switching and Timer
setting.
● HIGH-LOW fan speed switching
● AUTO Vane selector (AIR DISCHARGE)
switching
● TEST RUN switching
● CHECK mode switching
(Self diagnostic trouble shooting)
● Room temperature thermistor (RT1)
● Pipe temperature thermistor (RT2)
● Auto vane’s angle setting
● Booster heater ON-OFF Control
● Emergency stop
● Compressor protection
device working
● Defrosting
START-STOP
● Fan speed control
● Crankcase heater control
ON-OFF
● Self diagnostic function
Independent Control of
Outdoor Unit
OUTPUT to indoor unit
INPUT from indoor unit
INPUT to remote controller
Remote controller board
● Processes and transmits orders
OUTPUT to remote controller
Indoor controller board
● 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
w
Emergency operation
w
Set by dip switch on indoor controller board.
● Transmits the power to remote controller.
OUTPUT
to
outdoor
unit
12VDC
Non-polar, two-wire
cable maximum
length 00 meters
(WIRED only)
Signal
Remote controller
● LCD indicator
Polar three-wire cable
12VDC
1 2
1
2
Indoor unit
Outdoor unit
ON/OFF
CHECK
ADDRESS
UNIT No.
FUNCTION No.
SELECTION No.
AM
PM
AM
PM
TEST RUN
FUNCTION
°C
TEMP.
OC229A
