MITSUBISHI ELECTRIC PE-15MYC - Manual (Page 72)

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ELECTRICAL OPERATION FLOW CHARTS
START
POWER ON
52C ON
MC OPERATE
MF2, 3
OPERATE
SERVICE CALL
23WA ON?
SAFETY
DEVICE OFF?
NO
YES
YES
30FZ,30CZ ON (SELF HOLD)
FZ ON
YES
52F ON
MF1 OPERATE
NO
NO
30CZ OFF
CH ON
SW1 ON?
CZ1,2 ON
CH OFF
52C OFF
MC STOP
MF2,3 STOP
MF1 Note
CH ON
START
POWER ON
52C ON
MC OPERATE
MF2, 3
OPERATE
HZ1,2 ON
CH OFF
26D1, 2 ON
X1 ON
X2 ON (SELF HOLD)
21S4 OFF
MF2, 3 STOP
26D1, 2 OFF
21S4 ON
MF2, 3 OPERATE
X1, 2 OFF
SW1 COOL?
23WA ON?
SAFETY
DEVICE OFF?
23WA ON?
NO
YES
NO
YES
YES
YES
YES
NO
YES
NO
30FZ,30CZ ON (SELF HOLD)
FZ ON
YES
52F ON
MF1 OPERATE
NO
NO
NO
30CZ OFF
CH ON
SW2 ON?
CZ1 ON
CH OFF
21S4 ON
CZ1,2 ON
52C ON
MC OPERATE
MF2, 3
OPERATE
CONDENSING
TEMP -12 ?
CONDENSING
TEMP 6 ?
SERVICE CALL
52C OFF
MC STOP
MF2,3 STOP
MF1 Note
CH ON
Note.
1. When the fault of outdoor unit is occurred, the fan(MF1) of indoor unit continues to work.
But the unit doesn't work correctly (not cooling and heating ).
Then, turn off the power supply and check outdoor unit.
PE-7,8,10MYC-EU PEH-5MYA-EU, PEH-7,8,10MYA-EU