Mitsubishi Electric PUZ-A12NKA7 Service Manual page 83

SW2 setting
Controlling status of compressor
operating frequency
ON
1 2 3 4 5 6
Comp. surface temperature (TH33)
−4 to 422
ON
1 2 3 4 5 6
OCH636A
Display detail
The following code will be a help to know the
operating status of unit.
−4 to 422 [−20 to 217:]
(When the comp. surface thermistor detects 100˚F or
more, hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example) When 105°C;
0.5 s 0.5 s 2 s
Explanation for display
•
The tens digit
Display Compressor operating frequency control
1 Primary current control
2 Secondary current control
•
The ones digit (In this digit, the total number of
activated control is displayed.)
Display Compressor operating frequency control
Preventive control for excessive temperature
1
rise of discharge temperature
Preventive control for excessive temperature
2
rise of condensing temperature
4
Frosting preventing control
Preventive control for excessive temperature
8
rise of heatsink
(Example)
The following controls are activated.
• Primary current control
• Preventive control for excessive temper-
ature rise of condensing temperature
• Preventive control for excessive temper-
ature rise of heatsink
1
83
LED
05
Unit
Code
display
˚F
[:]