Service manual

3-3 Total time of compressor operation
Compressor operation time is indicated in 256 hour units. To obtain the compressor operation time, add the hours of light-
ing LED. During the compressor operation time indication, SW2 is not available.
3-4 Inspection code indication
When the inspection code is displayed twice during the normal operation, the operation changes to INSPECTION mode
automatically.
(On the first display of the inspection code, the mode changes to Restarting Protection Mode for 3 minutes and the opera-
tion restarts after 3 minutes.)
W1) When the mode changes to INSPECTION by pressing the SW2 ¨ON¨, the operation will be continued if during opera-
tion.
W2) When pressing except for the SW3-1 OFF and SW3-2 OFF, the mode changes to INSPECTION but the indication
code is not displayed.
W3) During the INSPECTION when the indoor controller operates OFF → ON of the compressor, output is displayed.
3-5 SW1 operation
The inspection code is deleted by operating the SW1 ¨ON¨ and also self-preservation is released, if during self-preserva-
tion.
Or if while the inspection code is blinking, it changes output display.
Note) SW1 has no connection with the Dip SW3 setting and is available at any time. However, when the inspection code is
displayed initially (anti-phase, phase interruption), SW1 will be unavailable.
100
C
Temperature
80
60
40
20
0
0
(Open 8 bits)(Open 8 bits)(Open 219 bits)
(Short 238 bits)(Short 238 bits)(Short 38 bits)
Number of bits
50 100 150 200 255
-20
-40
63
3-1 Outdoor coil temperature
To obtain data on the outdoor coil temperature, add the number of bits of lighting LED, and see the graph below to find the
temperature.
3-2 Fan output step
To obtain data on the fan output step, add the number of bits of lighting LED, and see the graph below to find the fan rota-
tional frequency.
50
Fan output step (bit)
Fan rotational frequency (rpm)
100 150 200 250
800
600
400
200
0
50
Fan output step (bit)
Type
Fan rotational frequency (rpm)
100 150 200 250
800
600
400
200
0
Type
1 PUH-2/4K type
<50Hz>
2PUH-2.5/3/5/6K type
<50Hz>