Operation Flow Chart; Main Operation - Mitsubishi Electric PK12FK Technical & Service Manual

7 OPERATION FLOW-CHART
1 In addition, the centralized and remote control can be operated.
2 The modes which indicate the sources of trouble are listed below.
EO=Signal transmitting/receiving error
P1=Room temperature thermistor malfunction
P2=Indoor coil thermistor malfanction
P4=Drain sensor malfunction
P5=Drain over flow
P6=Coil frost/overheat protection
P7=System error
P8=Outdoor unit trouble
3 The CHECK swich will show if an error has occurred in the past.
4 Fan runs on low speed for 1 minute in order to remove overheat air.
5 The 3-minute (6 minutes ... heating mode) time-delay functions after compressor stops.
6 FAN or AUTO mode is selected by the indoor dipswitch setting.
7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)
26

MAIN OPERATION

START
NO
Power circuit
breaker
1 YES
YES
Check SW
ON twice
NO
1
YES
Operation SW
ON
NO
YES
"OFF" timer
NO
NO
"ON" timer
YES
YES
Set time
complete
NO
STOP
PROTECTION DEVICE
SELF HOLD RELEASE
Remote controller
indicator lamp OFF
Indoor side
4
Fan STOP
Auxiliary heater OFF
Outdoor side
5
Compressor OFF
Fan STOP
Four-way valve OFF
NO
Set time
complete
YES
2
NO
Trouble
Remote controller
YES
operation display
Trouble STOP
PROTECTION DEVICE
SELF HOLD
3
Remote controller
trouble display
FAN operation
YES
Operating mode
(COOL)
COOL operation
NO
YES
Operating mode
(DRY)
DRY operation
NO