Fig. 1-1
Power to operate indoor unit (DC35V) is generated at the power supply in outdoor unit and it is sent to indoor unit
through the connecting cord C and D.
Then, DC 12V (12V line) is generated using DC/DC converter from the voltage sent from outdoor unit, as the
control voltage of 12V is required to drive the auto sweep motor and others.
Furthermore, 5V (5V line), which is necessary to drive the microcomputer and to control the fan motor, is generated
using three-terminal regulator IC121.
1. Power circuit
DESCRIPTION OF MAIN CIRCUIT OPERATION
C133
Q111
R114
Q113
Q112
R1
1
1
R115
C1
13
C1
16
R1
12
ZD1
1
1
R1
16
R1
17
C1
1
1
Q116
R124
R121
R122
R123
Q115
C1
12
IC111
8
L751
R631
L752
R752
C132
ZD131
M
CN10
1
2
3
4
5
6
C131
C751
C621
R751
Motor
Indoor Fan
IN
OUT
GND
D121
-
0V
+
ZD121
R1
18
C103
35V
35V
0V
ICP2
C1
15
L111
C1
14
D1
1
1
R1
19
ICP1
-
-
+
C102
+
12V
5V
0V
5V
C121
IC121
C123
C122
R125
R126
XA-6P-Top
R131
R132
Q131
CJ2
R120
Q114
Q751
47
97
57
45
7
10
68
IC712
7
6
1
4
3
2
5
12 V power supply
Power supply voltage
Indoor fan power supply
Indoor fan PWM output
Indoor fan speed feedbac
k
RAK-18/ 25/ 35PSPA
Содержание RAC-18WSPA
Страница 2: ... DANGER ...
Страница 32: ...WIRING DIAGRAM OF THE PRINTED WIRING BOARD Remote controller RAR 5E2 ...
Страница 33: ...CIRCUIT DIAGRAM MODEL RAK 18 25 35PSPA ...
Страница 34: ...MODEL RAC 18 25 35WSPA ...
Страница 39: ... ...
Страница 41: ... ...
Страница 44: ... ...
Страница 54: ...10 10 10 10 R921 R924 R642 R544 R542 R610 R922 DSW1 DSW1 R923 R541 R543 93 ...
Страница 55: ...TERMINAL BOARD RAC 18 25 35WSPA ...
Страница 56: ... ...
Страница 57: ... 䌔䌅䌓䌔䇭䌓䌗䌉䌔䌃䌈 䌓䌗 䌓䌅䌌䌆䇭 䌃䌈䌅䌃䌋 䌌 䋨 䌁䋩䌎 䋨 䌂䋩䇭 䇭 䌃䇭 䇭 䌄 ...
Страница 59: ... ...
Страница 60: ...5 Electric expansion valve circuit 22 23 24 25 12 13 14 15 5 4 3 2 34 32 30 29 RED ...
Страница 61: ...3 15A Fuse Switching power source ...
Страница 62: ...3 15A 3 15A DC260 360V ...
Страница 70: ......
Страница 72: ... ...
Страница 75: ...SELF DIAGNOSIS LIGHTING MODE MODEL RAC 18 25 35WSPA ...
Страница 76: ...77 ...
Страница 77: ... ...
Страница 79: ...AK 18 25 35PSPA RAC 18 25 35WSPA R L E D O M ...
Страница 82: ... ...
Страница 85: ...MODEL RAC 18 25 35WSPA ...
Страница 87: ...9 V 3 V 3 Q L D 0 3 U R R G W X R H F D O S H 5 V 3 9 ...
Страница 88: ... Q L D 0 3 U R R G W X R H F D O S H 5 U R W R P Q D I H F D O S H 5 Q L D 0 3 U R R G W X R H F D O S H 5 ...
Страница 90: ... 1 7 5 027 21752 5 ...
Страница 91: ...37 ...
Страница 92: ...Please set the DIP switch No 6 to ON accordingly Refe to page r 54 ...
Страница 93: ...54 ...
Страница 94: ... ...
Страница 96: ...㶎 㶎 Do not operate for 5 minutes or more Model RAC 18 25 35WSPA ...
Страница 97: ...PARTS LIST AND DIAGRAM INDOOR UNIT MODEL RAK 18PSPA RAK 25PSPA RAK 35PSPA ...
Страница 99: ...MODEL RAC 18 25 35WSPA 45 46 48 50 51 52 53 ...
Страница 101: ... 7 RAK 18PSPA RAC 18WSPA RAK 25PSPA RAC 25WSPA HHAW NO 0073E RAK 35PSPA RAC 35WSPA ...