12-30
CONTROL SYSTEM
Revision Y05-01
Service Manual - ALPHA
Fail condition:
0 sec - STAND-BY is turned ON
3 sec - STAND-BY, OPER, TIMER and FILTER are turned ON
•
When the timing reset test is completed, the next test will start
automatically.
i. STEP
9:
MEMORY
TEST
(EEPROM)
•
The test purpose is to check if the memory is functioning correctly. The test
result is reported by using the STAND-BY and FILTER LEDS:
LED Indicator
Condition for LED to be ON
STAND-BY LED
Test passed
FILTER LED
Test failed
AT THIS POINT THE SELF-TEST IS COMPLETED.
In order to terminate Self-Test mode the User can change the unit setting from COOL
Mode, LOW FAN to COOL Mode, MED FAN or to wait without using the remote control
for 60 sec.
Values of Sensors Temperature VS. Voltage (DC)
Temp. (*C) Voltage (V) Temp. (*C) Voltage (V) Temp. (*C) Voltage (V) Temp. (*C) Voltage (V)
-20
4.554
2
3.744
24
2.555
46
1.487
-19
4.529
3
3.695
25
2.5
47
1.447
-18
4.502
4
3.646
26
2.445
48
1.409
-17
4.475
5
3.595
27
2.391
49
1.371
-16
4.446
6
3.544
28
2.338
50
1.334
-15
4.417
7
3.492
29
2.284
51
1.298
-14
4.386
8
3.439
30
2.232
52
1.263
-13
4.354
9
3.386
31
2.18
53
1.228
-12
4.322
10
3.332
32
2.128
54
1.195
-11
4.287
11
3.278
33
2.077
55
1.162
-10
4.252
12
3.223
34
2.027
56
1.13
9
4.216
13
3.168
35
1.978
57
1.099
-8
4.178
14
3.113
36
1.929
58
1.069
-7
4.14
15
3.058
37
1.881
59
1.04
-6
4.1
16
3.002
38
1.834
60
1.011
-5
4.059
17
2.946
39
1.798
61
0.983
-4
4.017
18
2.89
40
1.742
62
0.956
-3
3.974
19
2.833
41
1.698
63
0.929
-2
3.93
20
2.777
42
1.654
64
0.904
-1
3.885
21
2.722
43
1.611
65
0.879
0
3.839
22
2.666
44
1.569
66
0.854
1
3.792
23
2.61
45
1.527
67
0.831
