8

OPERATION FLOW-CHART

MAIN OPERATION

 

START

 

 

 

Power circuit

NO

 

 

 

 

 

breaker

 

 

1

YES

 

 

YES

Check SW

 

 

 

ON twice

 

 

 

NO

w 1

 

 

 

 

 

Operation SW

YES

 

 

 

 

 

ON

 

 

 

NO

 

 

 

“OFF” timer

YES

 

 

 

 

 

NO

 

 

NO

“ON” timer

Set time

NO

 

complete

 

 

 

 

 

YES

YES

 

 

Set time

YES

 

 

complete

 

w 2

 

 

 

NO

Trouble

NO

YES

Remote controller

 

operation display

STOP

Trouble STOP

Operating mode

YES

 

 

(COOL)

 

PROTECTION DEVICE

PROTECTION DEVICE

NO

COOL operation

SELF HOLD RELEASE

SELF HOLD

 

YES

 

w 3

Operating mode

 

 

Remote controller

(DRY)

 

Remote controller

 

 

indicator lamp OFF

 

DRY operation

trouble display

NO

 

 

 

 

Operating mode

YES

 

 

 

 

 

(HEAT)

 

Indoor side

w 4

NO

HEAT operation

 

 

 

w 6

 

Fan STOP

 

YES

 

Operating mode

 

 

(FAN)

w 7

Auxiliary heater OFF

 

NO

FAN operation

 

 

 

 

Auto COOL/HEAT

 

 

 

operation

 

Outdoor side

w5

Compressor OFF

Fan STOP

Four-way valve OFF

w1 In addition, the centralised control and remote control can be operated. w2 The modes which indicate the sources of trouble are listed below.

E0-Signal transmitting/receiving error

P1-Room temperature thermistor malfunction

P2-Indoor coil thermistor malfunction

P4-Drain sensor malfunction

P5-Drain overflow

P6-Coil frost/overheat protection

P7-System error

P8-Outdoor unit trouble

w3 The CHECK switch will show if an error has occurred in the past. w4 Fan runs on low speed for 1 minute in order to remove overheat air.

w5 The 3-minute (6 minutes heating mode) time-delay functions after compressor stops. w6 FAN or AUTO mode is selected by the indoor dip switch setting.

w7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)

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Mitsubishi Electronics PKH36FL, PKH24FL, PKH30FL, PKH18FL service manual Operation FLOW-CHART, Main Operation