53
OCH748
SW2 setting
Display detail
Explanation for display
Unit
Comp. surface temperature (TH33)
−52 to 221
−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 0.5 s 2 s
Code
display
Controlling status of compressor
operating frequency
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
1
Preventive control for excessive tempera-
ture rise of discharge temperature
2
Preventive control for excessive tempera-
ture rise of condensing temperature
4
Frosting preventing control
8
Preventive control for excessive tempera-
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
Code
display
Outdoor suction pipe temperature (TH32)
−39 to 88
−39 to 88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(Example) When –15°C;
0.5 s 0.5 s 2 s
°C
LEV-C opening pulse
0 to 500
0 to 500
(When it is 100 pulse or more, hundreds digit are
displayed by turns.)
Pulse
1
05
1
ON
2 3 4 5 6
1a
LED
1
ON
2 3 4 5 6
The black square (
■
) indicates a switch position.
1
ON
2 3 4 5 6
15
1
ON
2 3 4 5 6
