Sharp AF-T908X - System Test Mode and Thermistor Data; Safety Start Delay and Test Mode; Thermistor Resistance Characteristics

21
AF-T908X
AF-R908X
AF-R1108X
AF-R1208X
6. Safety start
When you turn the air conditioner OFF and restart again soon, wait at least 3 minutes before the cooling operation
starts.
7. Test mode
Keep pushing both buttons “POWER ON/OFF” and “ " ” and supply the power, the system will go to the test mode.
In this mode, the output operation is switched by pushing buttons. Normal outputs are shown in Table Y-2.
Table Y-2
Step
1
2
3
4
5
6
7
Button
Selector
Power ON/OFF
Temp.
Timer
Energy saver
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
8.8
Display Outdoor
Fan motor
OFF
" L " ON
" L " ON
" H " ON
OFF
" L " ON
" L " ON
" H " ON
Indoor
Fan motor
OFF
" L " ON
" M " ON
" H " ON
OFF
" L " ON
" M " ON
" H " ON
High
COOL
Med
COOL
Low
COOL
Fan
Only
Power Temp. Timer Energy
ON
ON
1
1
1
1
1
1
2
2
2
2
2
2
ON ON
ON
ON
ON
ON ON ON ON ON
ON ON ON ON ON
ON ON ON ON ON
ON ON ON ON ON
ON ON ON ON ON
ON ON ON ON ON
ON ON ON ON ON
ON ON ON ON ON
ON ON
ON
ON
ON
Indicator
1
: -17 (°F) < (Room temp.) < 210 (°F) • • • • • • Indicator LED is ON
: 0 (°F) < (Thermo. temp.) < 250 (°F) • • • • • • Indicator LED is ON
If indicator LED is OFF, then replace the thermistor in PWB ass'y.
2
Characteristic of thermistor
Table Y-3
T(˚C) T(˚F) R(kΩ) V(volt)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
32.0
33.8
35.6
37.4
39.2
41.0
42.8
44.6
46.4
48.2
50.0
51.8
53.6
55.4
57.2
59.0
60.8
62.8
64.4
66.2
68.0
49.33
46.86
44.53
42.33
40.25
38.29
36.44
34.68
33.02
31.45
29.96
28.55
27.22
25.96
24.76
23.62
22.55
21.52
20.55
19.63
18.76
1.17
1.21
1.26
1.31
1.36
1.41
1.46
1.51
1.56
1.61
1.67
1.72
1.78
1.83
1.89
1.94
2.00
2.05
2.11
2.17
2.22
T(˚C) T(˚F) R(kΩ) V(volt)
31
32
33
34
35
36
37
38
39
40
69.8
71.6
73.4
75.2
77.0
78.8
80.6
82.4
84.2
86.0
17.93
17.14
16.39
2.28
2.33
2.39
30
29
28
27
26
25
24
23
22
21
87.8
89.6
91.4
93.2
95.0
96.8
98.6
100.4
102.2
104.0
15.68 2.44
15.00 2.50
14.36 2.55
13.74 2.61
13.16 2.66
12.60 2.71
12.07 2.77
11.57 2.82
11.09 2.87
10.63 2.93
10.19 2.98
9.78 3.03
3.08
3.13
3.17
3.22
3.27
9.38
9.00
8.64
8.30
7.97
V • • • • • • Input the voltage of microcomputer (No. 10-Port).