Service manual

47
3-1 Outdoor coil temperature
To obtain data on the outdoor coil temperature, add the number of bits of lighting LEDs, 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 LEDs, and see the graph below to find the fan
rotational frequency.
3-3 Total time of compressor operation
Compressor operation time is indecated in 256 hour units. To obtain the compressor operation time, add the hours of light-
ing LEDs. During the compressor operation time indication, SW2 is not available.
3-4 Check code indication
● When a protection function works for the first time during operation, the operation stops and restarts after the 3-minutes
time delay mode. When the protection function works again, the operation stops. (Check mode) When both SW3-1 and
SW3-2 are OFF, the check code is indicated.
● If the outdoor controller board receives the compressor ON command from the indoor controller board during check
mode the indication changes to output state indication.
● By pressing SW2 duirng normal operation. operation will continue.
● The latest check code is indicated.
50
Fan output step (bit)
Fan rotational frequency (rpm)
100 150 200 250
800
600
400
200
0
50
Fan output step (bit)
Fan rotational frequency (rpm)
100 150 200 250
800
600
400
200
0
100
C
Temperature
80
60
40
20
0
0
(Open 8 bits)(Open 8 bits)(Open 8 bits)
(Short 238 bits)(Short 238 bits)
Number of bits
50 100 150 200 255
-20
-40
➀PUH-1.6/2KA type
<50Hz>
➁PUH-2.5KA type
<50Hz>