Mitsubishi Electric PUZ-HWM140VHA Service Manual page 53

Air to water heat pump, outdoor unit, salt proof
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SW2 setting
Comp. surface temperature (TH33)
−52 to 221
ON
1
2 3 4 5 6
Controlling status of compressor
operating frequency
ON
1
2 3 4 5 6
Outdoor suction pipe temperature (TH32)
−39 to 88
ON
1
2 3 4 5 6
LEV-C opening pulse
0 to 500
ON
1
2 3 4 5 6
OCH748
Display detail
53
The black square (
Explanation for display
−52 to 221
(When the temperature is 0°C or less, "–" and tem-
perature are displayed by turns.)
(When the discharge thermistor detects 100°C or
more, hundreds digit, tens digit, and ones digit are
displayed by turns.)
(Example) When 105;
0.5 s
1
The following code will be a help to know the
operating status of unit.
• 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 tempera-
1
ture rise of discharge temperature
Preventive control for excessive tempera-
2
ture rise of condensing temperature
4
Frosting preventing control
Preventive control for excessive tempera-
8
ture rise of radiator panel
(Example)
The following controls are activated.
• Primary current control
• Preventive control for excessive temperature rise
of condensing temperature
• Preventive control for excessive
temperature rise of heat sink
−39 to 88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
(Example) When –15°C;
0.5 s
0 to 500
(When it is 100 pulse or more, hundreds digit are
displayed by turns.)
) indicates a switch position.
Unit
Code
display
0.5 s
2 s
05
Code
display
LED
1a
°C
0.5 s
2 s
15
Pulse

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