Mitsubishi Electric EHST20C-VM6HB Service Manual page 74

Split-type, air to water heat pump
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SW2 setting
Discharge superheat on error occurring
SHd
0 to 255
ON
Cooling = TH4−T
Heating = TH4−T
1
2 3 4 5 6
Sub cool on error occurring SC
0 to 130
Cooling = T
ON
Heating = T
1
2 3 4 5 6
Thermo-on time until error stops
0 to 999
ON
1
2 3 4 5 6
Indoor pipe temperature/Liquid
(TH2 (3))
ON
Indoor 3
−39 to 88
1
2 3 4 5 6
Indoor pipe temperature/Cond./Eva. (TH5
(3))
ON
Indoor 3
−39 to 88
1
2 3 4 5 6
Controlling status of compressor
operating frequency
ON
1
2 3 4 5 6
OCH533D
Display detail
63HS
63HS
TH3
63HS−
TH2
63HS−
The black square ( ) indicates a switch position.
Explanation for display
0 to 255
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 150°C;
0 to 130
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 115°C;
0 to 999
(When it is 100 minutes or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 415 minutes;
−39 to 88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
−39 to 88
(When the temperature is 0°C or less, "–" and
temperature are displayed by turns.)
When there is no indoor unit, "00" is displayed.
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
Secondary current control
2
The ones digit (In this digit, the total number of
activated control is displayed.)
Display Compressor operating frequency control
Preventive control for excessive temp-
1
erature rise of discharge temperature
Preventive control for excessive temp-
2
erature rise of condensing temperature
4
Frosting preventing control
Preventive control for excessive temp-
8
erature rise of heat sink
(Example)
The following controls are activated.
• Primary current control
• Preventive control for excessive tempe-
rature rise of condensing temperature
• Preventive control for excessive tempe-
rature rise of heat sink
74
0.5 s
0.5 s
2 s
1
50
0.5 s
0.5 s
2 s
1
15
0.5 s
0.5 s
2 s
4
15
LED
1a
Unit
:
:
Minute
:
:
Code
display

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