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SW2 setting
Pipe temperature / Liquid (TH3) on error
occurring
ON
– 40~90
1
2 3 4 5 6
Compressor temperature (TH4) or
discharge temperature (TH4) on error
ON
occurring
3~217
1
2 3 4 5 6
Compressor operating current on error
occurring
ON
0~50
1
2 3 4 5 6
Error code history (1) (latest)
ON
Alternate display of abnormal unit
number and code
1
2 3 4 5 6
Error code history (2)
Alternate display of error unit number
ON
and code
1
2 3 4 5 6
Thermostat ON time
0~999
ON
Test run elapsed time
1
2 3 4 5 6
0~120
Capacity code of indoor unit (Qj)
ON
1
2 3 4 5 6
OCH480A
Display detail
SW1
4
5
6
Indoor unit 1
0
0
0
Indoor unit 2
0
1
0
Indoor unit 3
0
1
0
Indoor unit 4
1
1
0
Indoor unit 5
0
0
1
Indoor unit 6
1
0
1
Indoor unit 7
0
1
1
Indoor unit 8
1
1
1
47
The black square (
Explanation for display
– 40~90
(When the coil thermistor detects 0: or below, "–"
and temperature are displayed by turns.)
(Example)
When –15:;
0.5 secs.
3~217
(When the temperature is 100: or more, the
hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example)
When –15:;
0.5 secs.
0~50
When no error history,
" 0 " and "–" are displayed by turns.
When no error history,
" 0 " and "–" are displayed by turns.
0~999
(When it is 100 minutes or more, the hundreds digit,
tens digit and ones digit are displayed by turns.)
(Example)
When 245 minutes; 0.5 secs.
0~120
(When it is 100 minutes or more, the hundreds digit,
tens digit and ones digit are displayed by turns.)
(Example)
When 105 minutes; 0.5 secs.
The capacity code of indoor unit is displayed.
■
) indicates a switch position.
0.5 secs.
2 secs.
15
0.5 secs.
2 secs.
1
30
0.5 secs.
2 secs.
2
45
0.5 secs.
2 secs.
1
05
Unit
:
:
A
Code
display
Code
display
Minute
Minute
Code
display
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Troubleshooting
