Mitsubishi Electric PKH18FK Technical & Service Manual page 55

3-1 Outdoor coil temperature
To obtain data on the outdoor coil tempera-
ture, 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.
1PUH18/24EK
Type
800
600
400
200
0
50
Fan output step (bit)
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 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.
100 150 200 250
˚F
212
176
140
104
68
32
-4
(Open 8 bits) (Open 8 bits) (Open 8 bits)
-40
0 50 100
2PUH30/36EK
Type
800
600
400
200
0
(Short 238 bits) (Short 238 bits) (Short 238 bits)
150 200 255
50 100 150 200 250
Fan output step (bit)
Number of bits
55