Mitsubishi Electric PUHZ-SW75VAA-SC Service Manual page 56

SW2 setting
DC bus voltage
180 to 370
ON
1 2 3 4 5 6
Error postponement code history (2)
of outdoor unit
ON
1 2 3 4 5 6
Error postponement code history (3)
of outdoor unit
ON
1 2 3 4 5 6
Error history (3) (Oldest)
Alternate display of abnormal unit
ON
number and code
1 2 3 4 5 6
Error thermistor display
When there is no error thermistor,
"–" is displayed.
ON
1 2 3 4 5 6
Operation frequency on error occurring
0 to 255
ON
1 2 3 4 5 6
Fan step on error occurring
ON
0 to 10
1 2 3 4 5 6
OCH651A
Display detail
The black square (
Explanation for display
180 to 370
(When it is 100 V or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
"00" is displayed in case of no postponement.
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
"00" is displayed in case of no postponement.
When no error history, "0" and "– –" are displayed by
turns.
3: Liquid pipe temperature (TH3)
4: Discharge pipe temperature (TH4)
6: 2-phase pipe temperature (TH6)
7: Ambient temperature (TH7)
8: Heat sink temperature (TH8)
32: Suction pipe temperature (TH32) (PUHZ-SHW only)
33: Comp. surface temperature (TH33)
0 to 255
(When it is 100 Hz or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
(Example) When 125 Hz;
0.5 s
0 to 10
56
■
) indicates a switch position.
0.5 s 2 s
1 25
Unit
V
Code
display
Code
display
Code
display
Code
display
Hz
Step