Mitsubishi Electric PU-P71VHA 2.UK Series Service Manual page 66

Outd oor unit operation monitor function
Operation indicator
SW2 setting
O N
1 2 3 4 5 6
<Digital ind icator LED1 working d etails>
· Lighting (Normal operation) : Indicating the operation mode.
(B e sure the 1 to 6 in the SW2 are set to OFF)
(1) Display when the power supply ON.
When the power supply ON, blinking displays by turns.
Wait for 4 minutes at the longest.
(2) When the display lights. (Normal operation)
1Operation mode display.
LED1
Th e t e n s d i g i t : O p e r a t i o n m o d e
D i s p l a y O p e r a t i o n m o d e
O O F F
C C O O L
H HE A T
d D E F R O S TI N G
2Error postponing display
(Compressor stop by the protection device
working) : Display the postponement code.
Postponement code is display during the error
postponing.
(3) When the display blinks (Operation stop by the protection device working) : Display the inspection code.
An error unit number and code are displayed by turns.
< A b n o r m a l u n i t n u m b e r >
(4) When 7 SEG display lights up (Protective device stops compressor operating.):
The screen displays the corresponding code when abnormality is being recorded.
OC37 9 J
SW2 : Indicator change of self diagnosis
Display detail
1 s e c o n d
i n t e r v a l
(Lighting)
< C h e c k c o d e >
1 s e c o n d
i n t e r v a l
Ex p lanation for display
O N
1
Th e u n i t s d i g i t : R e l a y o u t p u t
D i s p l a y C o m p r e s s o r 4- w a y v a l v e
0 —
1 —
2 —
3 —
4 O N
5 O N
6 O N
7 O N
D i s p l a y I n s p
0 O u t d o o r u n i t
1 I n d o o r u n i t 1
2 I n d o o r u n i t 2
3 I n d o o r u n i t 3
4 I n d o o r u n i t 4
66
Code
indication
SW2
(Initial setting)
2 3 4 5 6
B y p a s s s o l e n o i d v a l v e
— —
— O N
O N —
O N O N
— —
— O N
O N —
O N O N
e c t i o n u n i t
Unit