OC196A-31
MICROPROCESSOR CONTROL
10
●
Compressor and
outdoor fan : ON-
OFF
1. OUTLINE OF MICROPROCESSOR CONTROL
●
OFF-ON switching.
●
COOL/DRY-FAN 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.
●
Emergency stop.
●
Compressor protection
device working
●
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 tem-
perature 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 550 yards
Signal
Remote controller
●
LCD indicator
Polar two-wire cable
12VDC
1 2
1
2
Indoor
unit
Outdoor unit
FILTER
CHECK MODE
TEST RUN
TIMER OFF TIMER
CHECK SET TEMP.
CLOCK AUTO AUTO
STRAT STOP
SWING
FAN
SPEED
AUTO
RETURN
MITSUBISHI ELECTRIC
ON
DRY
COOL
FAN
CHECK
SET TEMP
TIMER OFF
AUTO STOP
AUTO START
F
HR
F
LOW HIGH
AUTO RETURN
CHECK TEST RUN
POWER
ON/OFF
MODE SELECT
SET
TEMPERATURE
FAN
COOL/DRY
COOLER
WARMER
TIMER
MODE
HOURS
FAN SPEED LOW/HIOGH
AIR
DISCHARGE
UP/DOWN
SWING
STOP
CHECK
TEST RUN
•CENTRALLY CONTROLLED•
(PK12/18/24/30/36FK)
PK12/18/24/30/36FK
1
PK18/24/30/36FK
2
(
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OC196A--2.qxp 1.12.19 10:40 AM Page 31
