79
OCH737
SW2 setting
Display detail
Explanation for display Unit
Sub cool on error occurring SC
0 to 130
Cooling = TH6−TH3
Heating = TH5−TH2
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;
0.5 s 0.5 s 2 s
Thermo-ON time until error stops
0 to 999
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;
0.5 s 0.5 s 2 s
Indoor pipe temperature/Liquid (TH2 (3))
Indoor 3
−39 to 88
−39 to 88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
Indoor pipe temperature/Cond./Eva. (TH5
(3))
Indoor 3
−39 to 88
−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.
°C
1
ON
2 3 4 5 6
1
ON
2 3 4 5 6
1
ON
2 3 4 5 6
1
ON
2 3 4 5 6
°C
Minute
°C
15
1
15
4
The black square ( ) indicates a switch position.
1
ON
2 3 4 5 6
Outdoor temperature/Comp. Surface (TH33)
−52 to 221
−52 to 221
(When the comp. surface thermistor detects 100°C 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
°C
Controlling status of compressor
operating frequency
1
ON
2 3 4 5 6
Code
display
The following code will be a help to know the
operating status of unit.
Display
Compressor operating frequency control
Display
Compressor operating frequency control
Primary current control
Secondary current control
1
2
1
4
8
2
•
The tens digit
•The ones digit
(In this digit, the total number of
activated control is displayed.)
Preventive control for excessive temp-
erature rise of discharge temperature
Preventive control for excessive temp-
erature rise of condensing temperature
Frosting preventing control
Preventive control for excessive temp-
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
1a
LED
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