Mitsubishi Electronics PEH-8MYA, PE-8MYC manual Electrical Operation Flow Charts, PE-7,8,10MYC-EU

ELECTRICAL OPERATION FLOW CHARTS

PE-7,8,10MYC-EU PEH-5MYA-EU, PEH-7,8,10MYA-EU

START

POWER ON

CH ON

START

POWER ON

CH ON

30FZ,30CZ ON (SELF HOLD)

SW1	NO
	ON?
YES

FZ ON

52F ON

MF1 OPERATE

23WA ON?		NO
YES
CZ1,2	ON

52C ON

MC OPERATE MF2, 3 OPERATE

CH	OFF
SAFETY		NO
DEVICE OFF?
YES
30CZ	OFF

52C OFF

MC STOP

MF1 Note

MF2,3 STOP

30FZ,30CZ ON (SELF HOLD)

SW2	NO
	ON?
YES

FZ ON

52F ON
MF1 OPERATE
SW1 COOL?		NO
YES
23WA ON?		NO
YES
CZ1	ON

52C ON

MC OPERATE MF2, 3 OPERATE

CH	OFF
SAFETY		NO
DEVICE OFF?
YES
30CZ	OFF

HZ1,2 ON

21S4	ON
NO
23WA ON?
	YES
CZ1,2	ON

52C ON

MC OPERATE MF2, 3 OPERATE

	CH	OFF
NO	CONDENSING
	TEMP	-12	?

YES

26D1, 2 ON

52C	OFF	X1 ON
MC	STOP
		X2 ON (SELF HOLD)
MF1	Note

CH	MF2,3	STOP
	ON		21S4 OFF
SERVICE CALL			MF2, 3 STOP
	CH	ON
		NO	CONDENSING
	SERVICE CALL		TEMP	6	?
				YES
			26D1, 2 OFF

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.

X1, 2 OFF

21S4 ON

MF2, 3 OPERATE

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