Fuji Electric RD-90EC User manual

S PLIT T Y PE AIR
CON DIT ION E R (50Hz)
DUCT type
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS . . . . . . . . . . . . . . . . . . . . 2
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ERROR CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
INDOOR P. C. BOARD CIRCUIT DIAGRAM . . . . . . . . 7
REFRIGERANT SYSTEM DIAGRAM . . . . . . . . . . . . . 11
DISASSEMBLY ILLUSTRATION . . . . . . . . . . . . . . . . . 12
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Models Indoor unit Outdoor unit
RD-90EC RO-90EPC
RD-90TC RO-90TPB

12003.12.15
IN DO OR U N IT
RD-90EC RD-90TC
O U T DO O R U N IT
RO-90EPC RO-90TPB
C OO LIN G CA PA C IT Y (kW ) 25.4 - 25.4 24.8 - 25.4
HE A T IN G CA P A CIT Y (kW )
----- 28.9 - 29.5
T Y PE Hermetic type, 2 pole, 3-phase,
Induction motor, S croll
CODE ZR T 122K 3E -T FD
R E FR IG E R A N T (R 407C ) (g) 7,0006,000
PO W E R S O U R C E (V ) 380 - 415
FR E Q U E N CY (Hz) 50
R U N N IN G C U R R E N T (A )
COO LIN G 17.5 - 17.0 19.5 - 19.5
HE A T IN G ----- 19.5 - 19.5
IN PU T W A T T S (kW )
COO LIN G 10.5 - 10.5 12.2 - 12.5
HE A T IN G ----- 12.2 - 12.5
EER (kW /kW )
COO LIN G 2.42 - 2.42 2.03 - 2.03
HE A T IN G ----- 2.37 - 2.36
M OIS TU R E R EM O V A L ( /hr) 7.5
A IR C IR C U LA T IO N -Hi (m
3
/hr) 4,300
T Y PE M F A-90N Q N
M F B -90N T N
PO W E R S O U R C E (V ) 380 - 415
380 - 415
HI-S PE E D
IN DO OR
IN DO OR
OU T DO OR
OU T DO OR
(r.p.m .) 980
730
T Y PE
PO W E R S O U R C E
HI-S PE E D
LO -S P E E D
(V )
(r.p.m .)
(r.p.m .) 360
H x W x D (m m ) 450 x 1,550 x 700
1,380 x 1,300 x 650
SPECIFICATIONS
E LE C T R ICA L DA T A
COM PR ES S OR
FA N M OT OR
DIM E N S IO N S
R E FR IG E R A N T C HA R G E (FU LL CHA R G E AM O U NT ) (R 407C )
PIPE L E N G T H 30m
40m
50m
6,000g
6,500g
7,000g
7,000g
8,000g
9,000g
IN DO OR
OU T DO OR
G R O S S / N E T (kg) 100 / 85
280 / 243 282 / 245
W E IG H TS

22003.12.15
Models : RD-90EC
RD-90TC
OUTLINE AND DIMENSIONS
38.1 (DRAIN PIPE)
LIQUID : 12.7 FLARE
GAS : 28.58 FLANGE
1,550 (MAXIMUM)
1,450
600
450
713 (MAXIMUM)
25.4 (SAFETY DRAIN)
(Unit : mm)

32003.12.15
Models : RO-90EPC
RO-90TPB
(Unit : mm)

42003.12.15
SERVICE SPACE FOR OUTDOOR UNIT
Top air outlet
Back
intake port
H (1200mm) h H (1200mm) h
Front
intake port
L2L1
10mm or more
10mm or more
200mm or more
500mm
or more
FRONT
Height of side wall is free.
Height (H) of front wall is
less than 1,200mm.
When total height of outdoor
unit is lower than front wall,
add dimension h to service space
for dimensions L1 and L2.
10mm or more
10mm or more
10mm or more
10mm or more
200mm
or more
500mm or more
FRONT

52003.12.15
Model : RD-90EC / RO-90EPC
CIRCUIT DIAGRAM

62003.12.15
Model : RD-90TC / RO-90TPB

35
34
25
15
14
26
64
62
78
79
80
54
55
66
65
71
61
53
32
24
23
22
5
11
12
13
16
17
18
28
29
30
31
47
48
49
50
51
52
72
73
60
369701
20
21
19
46
45
44
43
27
36
37
38
39
40
63
42
41
59
58
57
56
33
67
4
7
75
68
74
3
2
1 76
77
8
9
10
6
P10
P11
P70
P71
P72
P131
P57
P56
P46
P24
P23
P47
P03
P01
P12
P13
P14
P122
P123
P05
P04
I C
P00
P121
P55
P45
P44
P43
P130
P20
P21
P22
P25
P26
P27
P51
P52
P53
P54
P33
P34
P35
P36
P37
P120
XT2
XT1
RESET
X2X1
P40
P41
P42
P67
P30
P31
P32
P50
P60
P61
P62
P63
P64
P02
P66
P65
P127
P126
P125
P124
VSS1
VSS0
AVSS
AVRF1
AVRF0
VDD1
VDD0
P17
P16
P15
5V
C47
0.1
<F>
C15
0.1
<F>
+
+
C13
0.1
<F>
C14
100/
6.3V
12V
C11
10/
25V
5V
I C3
7805
R29 - R32
10K <1/10W> x 4
R33 - R36
1.0K <1/10W> x 4
C26 - C29
0.01 <F> x 4
5V
I C5 (1/7)
uPA2003GR
CR1
0.01
<F>
R14 10K
<1/10W>
5V
CR6
0.01
<F>
R9 390
<1/10W>
R10
10K
<1/10W>
C17
0.01
<F> Q3
DTC124EKA
14V
14V
I C5 (6/7)
uPA2003GR
NC
NC
NC
K 4
14V
5V
R96 10K <1/10W>
R93 10K <1/10W>
R94 10K <1/10W>
R95 10K <1/10W>
I C10 H I 2002
VA2
470V
14V
SSR1
G3MC-201PL-VD
+
-
5V R21 - R24
10K <1/10W> x 4
R25 - R28
1.0K <1/10W> x 4
C22 - C25
0.01 <F> x 4
0.01 <F> x 3
C10 C12 C30
5V
R42 1.0K <1/10W>
R40 1.0K <1/10W>
R41 1.0K <1/10W>
X1 5MHz
2
5V
C44
0.1
<F>
R55
10K
<1/10W>
5V
C45
0.1
<F>
PST600C
I C8
C49
0.01
<F>
1
3
2
CN15
B3B-XARK-1-A
FLOAT SWITCH
5V
RJ1 1.0K
<1/10W>
RJ2 10K
<1/10W>
CN15-1
CN15-2
CN15-3
CN9-1
CN9-5
CN9-4
CN9-3
CN9-2
CN9
B5P-SHF-1AA
R39 R38 R37 10K <1/10W> x 3
TEST
SW1
DSS803
K2 JM8
CN5
B3P5-VH-B
FAN MOTOR
CN1
B3P5-VH-B-C
AC I N
CN5-2
CN5-4
CN6-1
CN6-2
K4
G5NB-1A
CN6
B2P3-VH-B-E
DRAIN
PUMP
HEATER
CN10
B2B-XAMK-1-A
C3 0.22
R88 120 <1/2W>
CN10-1
CN10-2
UL1015 AWG20 BLUE
172168-1
6
4
3
2
1
BLUE
BLUE
BLACK
WHITE
RED
FAN MOTOR
F M
TERMINAL BOARD
L
N
1
E
OUTDOOR UNIT
T
S
R
POWER SOURCE
415 / 380V
50Hz
TERMINAL
BOARD
CR COMP. XEB1201-TZ
ELECTROMAGNETIC
SWITCH A
PAK-6J30C
-S571
E101 W103 W104
UL1015 AWG20 RED
UL1015 AWG20 WHITE
UL1015 AWG20 BLACK
UL1015 AWG20 BLUE
UL1015 AWG20 PURPLE
UL1015 AWG20 RED
UL1015 AWG20 WHITE
UL1015 AWG20 BLACK
ZONE CONTROL CHANGER
ROOM TEMPERATURECORRECTION
( HEATING OPERATION )
ROOM TEMPERATURECORRECTION
( HEATING OPERATION )
NO.1
NO.3
NO.2
1
2
3
CN1-1
CN1-3
CN1-2
UL1015 AWG18 WHITE
UL1015 AWG18 RED
UL1015
AWG18 BLACK
UL1015 AWG16 GREEN
POWER SUPPLY PCB
EZ-0031HSE-P
UL1015 AWG16 WHITE
UL1015 AWG16 BLACK
TM102
TM101
240 / 220V
50Hz
L
N
VA101
470V
SA101
<3600V>
F101
3.15A
<BET>
VA102
470V
C102
0.22
LF101
ELF17N015A
FH101
FH102
C103
0.01
C104
0.01
C105
0.01
C106
0.01
C101
0.22
VA1
470V
SW2
DRS4016-5
C 1
2
4
8
18
14
10
4
3
2
5
1
10 7
I O
G
I O
G
I C2
7812
14V
C54
0.01
<F>
PRIMARY SECONDARY
C9
1000
/25V
R8 10K <1/10W>
+
D6
D2FL20U
T1
SWITCHING TRANSFORMER
ZFT29B01
C8
100/6.3V
+
R7
330
<1/4W>
D3
MTZJ5.1B
D4
D1FL20U
D2
D1FL20U
R6 100
<1/2W>
C7
0.047
D1
D3SB60
C5
100/450V
+R2 1.5
<2W>
Q2
2SC1815
R3 100
<1/10W>
Q1
2SC4236
R1
3.3 <5W>
JM6
R4 330K
<2W>
C6
4700P
R5 62K
<2W>
D5
1SR139-600
D10
1SR139-600
5V
R15 - R17
10K <1/10W> x 3
JM1
JM3
JM2
NOT USED
CUSTOM CODE CHANGER (R1)
CUSTOM CODE CHANGER (R2)
C19 - C21
0.01 x 3
<F>
R20 1.0K <1/10W>
R19 1.0K <1/10W>
R18 1.0K <1/10W>
C32
1000P
<R>
C35
1000P
<R>
R50 10K <1/10W>
R44 1.0K <1/10W>
R46 1.0K <1/10W>
5V
R77 - R79
10K <1/10W> x 3 I C7
BR93LC46RF
5V
C39
0.1
<F>
C37
0.1
<F>
R45
49.9K (1%)
<1/10W>
R43
10K (1%)
<1/10W>
C34
0.1
<F>
D0
D1
CK
CS
VCC
NC
NC
GND
4
6
5
1
2
3
8
7
5V
C38
0.01
<F>
C1
0.1 <F>
CR7
0.01
<F>
I C11-1
BA10358
R67 1.0K
<1/10W>
R68 10K
<1/10W>
R49 1.0K
<1/10W>
5V
R48
10K
<1/10W>
Q4
DTC124EKA
5V
R47 390
<1/10W>
HA
JEM-A
CN14
B4B-XH-AM
CN14-1
CN14-4
CN14-3
CN14-2
5V CN8
CN7
B2B-XASK-1-A
B2B-XAKK-1-A
CN8-1 BLACK
CN8-2 BLACK
CN7-2 GRAY
CN7-1 GRAY
ROOM TEMPERATURE THERMISTOR
HEAT EXCHANGER THERMISTOR
REMOTE CONTROL UNIT
EZ-0001HSE-R
TERMINAL BOARD
5V
3 2 1
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
C43
0.01
<F>
C16
0.01
<F>
C31
0.01
<F>
R80 10K <1/10W>
R69 10K <1/10W>
R70 10K <1/10W>
R52 10K <1/10W>
R71 1.0K <1/10W>
R72 1.0K <1/10W>
R81 1.0K <1/10W>
R51 1.0K <1/10W>
R92 10K
<1/10W>
Q7
2SC982
R91 10K
<1/10W>
Q5
2SC2712
Q6
2SC2712
5V 5V
R60
10K
<1/10W>
R61
10K
<1/10W>
JM10
12V
12V
12V
R63
15.4K (1%)
<1/10W>
R64
28K (1%)
<1/10W>
12V
R66
10K
<1/10W>
D7
DA226U
R65 390
<1/10W>
R62 4.7K
<1/10W>
I C11-2
BA10358
L2
L4
L3
DSS306-92F223Z16 x 3
CN17
B3B-XAKK-1-A REMOTE
CN17-1
CN17-3
CN17-2
UL1430 AWG22 BLACK
UL1430 AWG22 WHITE
UL1430 AWG22 RED
58
4
76
+
-
R58 10K <1/10W>
R97 10K <1/10W>
R59 10K <1/10W>
R100 10K <1/10W>
R76 10K <1/10W>
R75 10K <1/10W>
R99 10K <1/10W>
R98 10K <1/10W>
CR2 10K <1/10W>
CR3 10K <1/10W>
CR4 10K <1/10W>
CR5 10K <1/10W>
9
6
5
4
3
2
1
8
16
15
14
13
12
11
I C 1
uPD780058BGC
-078-8BT
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
RD-90EC : EZ-00302WSE-F
RD-90TC : EZ-0031HSE-F
INDOOR PRINTED CIRCUIT BOARD
CIRCUIT DIAGRAM
Models : RD-90EC
RD-90TC
72003.01.09

5V
I C7 HU2001
5V
C13
0.1
<F>
5V
5V
C15
1000P
<R>
2
3
1
5
4
18
10
14
2
1 3
41 40
X2X1
28
29
30
31
32
14
13
12
11
17
16
15
21
36
64
26
44
47
33
48
45
46
49
50
51
52
53
54
55
56
24
10
34
35
38
39
9
25
22
27
43
23
18
19
45
37
20
7
8
63
62
61
60
59
58
57
1
2
3
4
5
6
P11
P12
P13
P14
P15
P30
P31
P32
P33
P23
P34
P35
P36
RESET
P70
P01
P17
P47
P10
P71
P02
P03
P72
P73
P74
P75
P67
P66
P65
P64
VDD1
VDD0
AVREF
AVDD
XT1
GND1
AGND
GND0
I C
P24
P16
P00
P25
P20
P21
P02
XT2
P22
P56
P57
P46
P45
P44
P43
P42
P41
P40
P50
P51
P52
P53
P54
P55
X1
8.38 MHz
C23C24 C22
1000P <R> x 3
C41 C40 C39 C38
0.11 <F> x 4
R15 1.0K <1/10W>
R14 1.0K <1/10W>
R13 1.0K <1/10W>
R12 1.0K <1/10W>
R11 1.0K <1/10W>
R30 1.0K <1/10W>
R31 1.0K <1/10W>
R32 1.0K <1/10W>
R33 1.0K <1/10W>
R37 R38 R39 R43
5V
10K <1/10W> x 4
C36
0.1
<F>
NC
I C10
NM93C46
NC
R56 R57 R58
10K <1/10W> x 3
C44
0.1
<F>
C43
0.1
<F>
5V
R44 10K <1/10W>
5V
5V
R40 10K
<1/10W> I C6
PST
600C
3
2
1
1
2
3
6
8
4
7
5
CS
SK
D1
NC
VCC
D0
NC
GND
C54 C51 C52 C53
0.01 <F> x 4
5V
R47 R51 R52 R76
10K <1/10W> x 4
R80
R77
R78
R79
1.0K <1/10W> x 4
SW1
DSS804
1
2
3
45
6
7
8DEFROST
DEFROST TEMP.
PUMP DOWN
FAN LOW NOISE
C42
0.1
<F>
5V
R27 10K
<1/10W>
14V
R26 1.0K
<1/10W>
CR63
CR62
0.01
<F>
R50 10K
<1/8W>
D7
DA226U
14V
14V
14V D6
DA226U
R49 10K
<1/10W>
R54 1.0K <1/10W>
R55 1.0K <1/10W>
Q5
2SC2712
Q6
2SC2712
NC I C4 (7/7)
uPA2003GR
NC
NC
NC
24V
24V
R59 10 <1/10W>
R61 10 <1/10W>
R62 10 <1/10W>
R60 10 <1/10W>
CN11
B6B-XASK-1-A
CN11-1
CN11-4
CN11-6
CN11-5
CN11-3
CN11-2
ELECTRONIC
EXPANSION VALVE-A
UL1430 AWG24 ORANGE
UL1430 AWG24 YELLOW
UL1430 AWG24 WHITE
UL1430 AWG24 BLUE
UL1430 AWG24 BROWN
UL1430 AWG24 RED
K 11
K 10
CN13
B2P-VH-B
PRESSURE SWITCH A
CN13-1
CN13-2
UL1015 AWG20
UL1015 AWG20
PINK
PINK
ZCAT1518-0730
EMI FILTER
PRES.
SW
A
CN14
B5P-SHF-1AA
5V
TEST
CN9
B6B-XAKK-1-A
CN14-1
CN14-5
CN14-4
CN14-3
CN14-2
CN9-1
CN9-6
CN9-5
CN9-4
CN9-3
CN9-2
THERMISTOR
TUBE
BROWN
8
1
2
3
16
15
14
9
4
5
6
7
13
12
11
10
EEV-A
BLACK
GREEN
OUTDOOR TEMP. TH. R25 = 10.00k B25 / 50 = 3950k
PIPE TEMP. TH. R0 = 16.05k B0 / 25 = 3873k
DISCHARGE TEMP. TH. R100 = 3.43k B50 / 100 = 4012k
R19 6.65K (1%) <1/10W>
R18 14K (1%) <1/10W>
R17 38.3K (1%) <1/10W>
RJ21
RJ20
C18
C17 C19
0.1 <F> x 3
I C3 (7/7)
uPA2003GR
NC
NC
LED1 SLR-325 <RED>
LED6 SLR-325 <RED>
LED3 SLR-325 <RED>
LED5 SLR-325 <RED>
LED2 SLR-325 <RED>
LED4 SLR-325 <RED>
R23 10K <1/10W>
R24 10K <1/10W>
R25 10K <1/10W>
R34 10K <1/10W>
R35 10K <1/10W>
R36 10K <1/10W>
5V
CN4
179844-1
C57 0.22
R85 120 <1/2W>
K5
FTR-F3A
CN4-1
CN4-2
8
10 7
11 6
5
12
13
14
15
4
3
2
116
9
14V
NC
NC
NC
NC
NC
C48
0.01
<F>
C7
0.01
<F>
5V
5V
R3 4.7K
<1/10W>
Q8
DTC124EKA
R1
4.7K
<1/10W>
R82
56K
PC1
TLP621
D1
D1F60
14V
C8
0.22
K 2
K 5
K 3
K 4
K 1
Q14
DTC124EKA
C14
0.01
<F>
R7 1.0K
<1/10W>
R9
10K
<1/10W>
R5 4.7K
<1/10W>
Q3
DTC124EKA
R4 4.7K
<1/10W>
5V
R8 1.0K
<1/10W>
R10
10K
<1/10W>
5V
5V
C12
0.1
<F>
I C2
7805
R92 10K
<1/10W>
24V
I C9
7824
+C10
100/
35V
5V
14V
I O
G
I O
GC47
100/
6.3V
+C45
0.1
<F>
JM4
C46
0.1
<F>42
T1
TR-175D
SWITCHING
TRANSFORMER
D3
D2FL20U
D2
D2FL20U
R45 10K
<1/10W>
C5
1000
/25V
+
C6
1000
/50V
+
R2 10K
<1/4W>
C49
0.01
<F>
C37
100/
6.3V
+
LF1
ELF17N004A
C3
0.022
C4
0.022
VA1
470V
VA3
470V
VA2
470V
SA1
RA-362M
CN22
B2P3-VH-B-R
K10
FTR-F3A
CN23
B2P3-VH-B-E
K11
FTR-F3A
CN3
B3P5-VH-B
CN23-1
CN23-2
CN22-1
CN22-2
CN3-2
CN3-3
CN3-4
C55 0.22
R83 120
<1/2W>
K1
FTR-F3A
K2
G5S-1
CN16
B3P5-VH-B-R
C56 0.22
R84 120
<1/2W>
K3
FTR-F3A
K4
G5S-1
CN16-4
CN16-3
CN16-2
YELLOW
WHITE
RED
BLUE
BLACK
YELLOW
WHITE
RED
BLUE
BLACK
FAN CAPACITOR-1
440V
11 uF
FAN CAPACITOR-2
440V
11 uF
FAN
MOTOR
1
FAN
MOTOR
2
MAGNETIC
COMP. B
MAGNETIC
COMP. A
UL1015 AWG20 PURPLE
UL1015 AWG20 PURPLE
UL1015 AWG20 BLUE
UL1015 AWG20 BLUE
UL1015 AWG20
WHITE
RED
UL1015 AWG20
BLUE
UL1015 AWG20
UL1015 AWG20
WHITE
RED
UL1015 AWG20
BLUE
UL1015 AWG20
UL1015 AWG16 GREEN
CN7-3
CN7-2
E
W1
FH1 FH2
F1
6.3A
<BET>
CN7
B3P5-VH-B-C
AC I N
CN7-1
UL1015 AWG20
RED
UL1015 AWG20
PINK
TERMINAL
BORAD
INDOOR UNIT A
TERMINAL
BOARD
R
S
T
N
E
1
3
E
2 (N)
R46
3.3
<5W>
D14
D3SB60
C27
100/
450V
+
R68
330K
<2W>
Q9
2SC4236
R81 62K
<RS-2W>
C28
4700P
D19 1SR139-600
D23
1SR139-600
R69 100
<1/10W>
D21 D1FL20U
C35
0.047
R71 100
<1/2W>
D20
D1FL20U
D18
MTZJ5.1B
R70 330
<1/4W>
R67
1.5
<2W>
Q10
2SC1815
POWER SOURCE
415 / 380V
50 / 60Hz
UL1015
AWG12
GRN / YEL
UL1015 AWG14 RED
UL1015 AWG14 WHITE
UL1015 AWG14 BLACK
UL1015 AWG20 BLACK
UL1015 AWG20 PURPLE
UL1015
AWG20
PURPLE
E. RELAY A
CR COMP. XEB1201-TZ
RED
WHITE
BLACK
BLACK
BLACK
RED
WHITE
BLACK
E. RELAY B
CR COMP. XEB1201-TZ
BLACK
BLACK
R
RSS
TTTT
T
T
BLACK
BLACK
BLACK BLACK
COMPRESSOR B
COMPRESSOR A
CRANK CASE
HEATER
CRANK CASE
HEATER
COMP.
AB
COMP.
UL1015 AWG14 RED
UL1015 AWG14 WHITE
UL1015 AWG14 BLACK
BLACK
UL1015 AWG20
UL1015 AWG12 GREEN / YELLOW
UL1015 AWG20 BLUE
UL1015 AWG20 PINK
UL1015 AWG20 RED
UL1015 AWG20 BLACK
I C 1
uPD780024AGK
-C28-9ET
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
EZ-0031WUE-C
OUTDOOR PRINTED CIRCUIT BOARD
CIRCUIT DIAGRAM
Model : RO-90EPC
82003.01.09

5V
I C7 HU2001
5V
C13
0.1
<F>
5V
5V
C15
1000P
<R>
2
3
1
5
4
18
10
14
2
1 3
41 40
X2X1
28
29
30
31
32
14
13
12
11
17
16
15
21
36
64
26
44
47
33
48
45
46
49
50
51
52
53
54
55
56
24
10
34
35
38
39
9
25
22
27
43
23
18
19
45
37
20
7
8
63
62
61
60
59
58
57
1
2
3
4
5
6
P11
P12
P13
P14
P15
P30
P31
P32
P33
P23
P34
P35
P36
RESET
P70
P01
P17
P47
P10
P71
P02
P03
P72
P73
P74
P75
P67
P66
P65
P64
VDD1
VDD0
AVREF
AVDD
XT1
GND1
AGND
GND0
I C
P24
P16
P00
P25
P20
P21
P02
XT2
P22
P56
P57
P46
P45
P44
P43
P42
P41
P40
P50
P51
P52
P53
P54
P55
X1
8.38 MHz
C23C24 C22
1000P <R> x 3
C41 C40 C39 C38
0.11 <F> x 4
R15 1.0K <1/10W>
R14 1.0K <1/10W>
R13 1.0K <1/10W>
R12 1.0K <1/10W>
R11 1.0K <1/10W>
R30 1.0K <1/10W>
R31 1.0K <1/10W>
R32 1.0K <1/10W>
R33 1.0K <1/10W>
R37 R38 R39 R43
5V 10K <1/10W> x 4
C36
0.1
<F>
NC
I C10
NM93C46
NC
R56 R57 R58
10K <1/10W> x 3
C44
0.1
<F>
C43
0.1
<F>
5V
R44 10K <1/10W>
5V 5V
R40 10K
<1/10W> I C6
PST
600C
3
2
1
1
2
3
6
8
4
7
5
CS
SK
D1
NC
VCC
D0
NC
GND
C54 C51 C52 C53
0.01 <F> x 4
5V
R47 R51 R52 R76
10K <1/10W> x 4
R80
R77
R78
R79 1.0K <1/10W> x 4 SW1
DSS804
1
2
3
45
6
7
8DEFROST
DEFROST TEMP.
PUMP DOWN
FAN LOW NOISE
C42
0.1
<F>
5V
R27 10K
<1/10W>
14V
R26 1.0K
<1/10W>
CR63
CR62
0.01
<F>
R50 10K
<1/8W>
D7
DA226U
14V
14V
14V D6
DA226U
R49 10K
<1/10W>
R54 1.0K <1/10W>
R55 1.0K <1/10W>
Q5
2SC2712
Q6
2SC2712
NC I C4 (7/7)
uPA2003GR
NC
NC
NC
24V
24V
R59 10 <1/10W>
R61 10 <1/10W>
R62 10 <1/10W>
R60 10 <1/10W>
CN11
B6B-XASK-1-A
CN11-1
CN11-4
CN11-6
CN11-5
CN11-3
CN11-2
ELECTRONIC
EXPANSION VALVE-A
UL1430 AWG24 ORANGE
UL1430 AWG24 YELLOW
UL1430 AWG24 WHITE
UL1430 AWG24 BLUE
UL1430 AWG24 BROWN
UL1430 AWG24 RED
K 11
K 10
CN13
B2P-VH-B
PRESSURE SWITCH A
CN13-1
CN13-2
UL1015 AWG20
UL1015 AWG20
PINK
PINK
ZCAT1518-0730
EMI FILTER
PRES.
SW
A
CN14
B5P-SHF-1AA
5V
TEST
CN9
B6B-XAKK-1-A
CN14-1
CN14-5
CN14-4
CN14-3
CN14-2
CN9-1
CN9-6
CN9-5
CN9-4
CN9-3
CN9-2
THERMISTOR
TUBE
BROWN
8
1
2
3
16
15
14
9
4
5
6
7
13
12
11
10 EEV-A
BLACK
GREEN
OUTDOOR TEMP. TH. R25 = 10.00k B25 / 50 = 3950k
PIPE TEMP. TH. R0 = 16.05k B0 / 25 = 3873k
DISCHARGE TEMP. TH. R100 = 3.43k B50 / 100 = 4012k
R19 6.65K (1%) <1/10W>
R18 14K (1%) <1/10W>
R17 38.3K (1%) <1/10W>
RJ21
RJ20
C18
C17 C19
0.1 <F> x 3
I C3 (7/7)
uPA2003GR
NC
NC
LED1 SLR-325 <RED>
LED6 SLR-325 <RED>
LED3 SLR-325 <RED>
LED5 SLR-325 <RED>
LED2 SLR-325 <RED>
LED4 SLR-325 <RED>
R23 10K <1/10W>
R24 10K <1/10W>
R25 10K <1/10W>
R34 10K <1/10W>
R35 10K <1/10W>
R36 10K <1/10W>
5V
CN4
179844-1
C57 0.22
R85 120 <1/2W>
K5
FTR-F3A
CN4-1
CN4-2
8
10 7
11 6
5
12
13
14
15
4
3
2
116 9
14V
NC
NC
NC
NC
NC
C48
0.01
<F>
C7
0.01
<F>
5V
5V
R3 4.7K
<1/10W>
Q8
DTC124EKA
R1
4.7K
<1/10W>
R82
56K
PC1
TLP621
D1
D1F60
14V
C8
0.22
K 2
K 5
K 3
K 4
K 1
Q14
DTC124EKA
C14
0.01
<F>
R7 1.0K
<1/10W>
R9
10K
<1/10W>
R5 4.7K
<1/10W>
Q3
DTC124EKA
R4 4.7K
<1/10W>
5V
R8 1.0K
<1/10W>
R10
10K
<1/10W>
5V 5V
C12
0.1
<F>
I C2
7805 R92 10K
<1/10W>
24V
I C9
7824
+C10
100/
35V
5V
14V
I O
G
I O
GC47
100/
6.3V
+C45
0.1
<F>
JM4
C46
0.1
<F>42
T1
TR-175D
SWITCHING
TRANSFORMER
D3
D2FL20U
D2
D2FL20U
R45 10K
<1/10W>
C5
1000
/25V
+
C6
1000
/50V
+
R2 10K
<1/4W>
C49
0.01
<F>
C37
100/
6.3V
+
LF1
ELF17N004A
C3
0.022
C4
0.022
VA1
470V
VA3
470V
VA2
470V
SA1
RA-362M
CN22
B2P3-VH-B-R
K10
FTR-F3A
CN23
B2P3-VH-B-E
K11
FTR-F3A
CN3
B3P5-VH-B
CN23-1
CN23-2
CN22-1
CN22-2
CN3-2
CN3-3
CN3-4
C55 0.22
R83 120
<1/2W>
K1
FTR-F3A
K2
G5S-1
CN16
B3P5-VH-B-R
C56 0.22
R84 120
<1/2W>
K3
FTR-F3A
K4
G5S-1
CN16-4
CN16-3
CN16-2
YELLOW
WHITE
RED
BLUE
BLACK
YELLOW
WHITE
RED
BLUE
BLACK
FAN CAPACITOR-1
440V
11 uF
FAN CAPACITOR-2
440V
11 uF
FAN
MOTOR
1
FAN
MOTOR
2
MAGNETIC
COMP. B
MAGNETIC
COMP. A
UL1015 AWG20 PURPLE
UL1015 AWG20 PURPLE
UL1015 AWG20 BLUE
UL1015 AWG20 BLUE
UL1015 AWG20
WHITE
RED
UL1015 AWG20
BLUE
UL1015 AWG20
UL1015 AWG20
WHITE
RED
UL1015 AWG20
BLUE
UL1015 AWG20
UL1015 AWG16 GREEN
CN7-3
CN7-2
E
W1
FH1 FH2
F1
6.3A
<BET>
CN7
B3P5-VH-B-C
AC I N
CN7-1
UL1015 AWG20
RED
UL1015 AWG20
PINK
TERMINAL
BORAD
INDOOR UNIT A
TERMINAL
BOARD
R
S
T
N
E
1
3
E
2 (N)
R46
3.3
<5W>
D14
D3SB60
C27
100/
450V
+
R68
330K
<2W>
Q9
2SC4236
R81 62K
<RS-2W>
C28
4700P
D19 1SR139-600
D23
1SR139-600
R69 100
<1/10W>
D21 D1FL20U
C35
0.047
R71 100
<1/2W>
D20
D1FL20U
D18
MTZJ5.1B
R70 330
<1/4W>
R67
1.5
<2W>
Q10
2SC1815
POWER SOURCE
415 / 380V
50 / 60Hz
UL1015
AWG12
GRN / YEL
UL1015 AWG14 RED
UL1015 AWG14 WHITE
UL1015 AWG14 BLACK
UL1015 AWG20 BLACK
UL1015 AWG20 PURPLE
UL1015
AWG20
PURPLE
E. RELAY A
CR COMP. XEB1201-TZ
RED
WHITE
BLACK
BLACK
BLACK
RED
WHITE
BLACK
E. RELAY B
CR COMP. XEB1201-TZ
BLACK
BLACK
R
RSS
TTTT
T
T
BLACK
BLACK
BLACK BLACK
COMPRESSOR B
COMPRESSOR A
CRANK CASE
HEATER CRANK CASE
HEATER
COMP.
AB
COMP.
UL1015 AWG14 RED
UL1015 AWG14 WHITE
UL1015 AWG14 BLACK
BLACK
UL1015 AWG20
UL1015 AWG12 GREEN / YELLOW
UL1015 AWG20 BLUE
UL1015 AWG20 PINK
UL1015 AWG20 RED
UL1015 AWG20 BLACK
I C 1
uPD780024AGK
-C28-9ET
CONTROLLER PCB ASSEMBLY ( MAIN PCB )
EZ-0031WUE-C
Model : RO-90TPB
BLACK
BLACK
4-WAY VALVE A
4WV.
A
2004.01.09 9

To stop test running, press the START/STOP button.
For the operation method, refer to the operating manual and
perform operation check.
Check that there are no abnormal sounds or vibration
sounds during test running.
When EE : EE blinks at the current time display, there is an
error inside the air conditioner. If the SET TIME button ( )
and TEMP./DAY button ( ) are pressed simultaneously for
more than three seconds, the self diagnosis check will start
and the error contents will be displayed at the current time
display. When the operation lamp lights, press the
START/STOP button and after operation lamp goes off,
perform the same operation. Process the error contents by
referring to (Table 1).
NON STOP
CLOCK
TEMP
AUTO
TIMER
MODE
SET
START/STOP
CLOCK ADJUST
SET TIME TEMP./DAY FAN
CONTROL
MASTER
CONTROL
21
HIGH
COOL
DEFROST
DAY OFF
AUTO
TIMER
MODE
SET
START/STOP
CLOCK ADJUST
SET TIME TEMP./DAY FAN
CONTROL
MASTER
CONTROL
21
DAY OFF
ENERGY SAVE ENERGY SAVE
ZONE
Stop operation.
Table 1
Error cord Error contents
Communication error
(indoor unit remote controller)
Communication error
(indoor unit outdoor unit)
Room temperature sensor open
Room temperature sensor shortcircuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor
shortcircuited
Outdoor heat exchanger temperature sensor
open
Outdoor heat exchanger temperature sensor
shortcircuited
Power source connection error
Float switch operated
Outdoor temperature sensor open
Outdoor temperature sensor shortcircuited
Discharge pipe temperature sensor open
Discharge pipe temperature sensor shortcircuited
Outdoor high pressure abnormal
Discharge pipe temperature abnormal
Model abnormal
Indoor fan abnormal
Outdoor signal abnormal
Outdoor EEPROM abnormal
1. REMOTE CONTROLLER 2. OUTDOOR UNIT
When the outdoor temperature drops, the outdoor unit's fans
may switch to low speed, or one of the fans may stop
intermittently.
ERROR : Heat & Cool model (Reverse cycle) only
The LED lamps operate as follows (Table 2) according to the
error contents.
The LED lamps are on the outdoor unit board.
Error contents LED1 LED2 LED3 LED4 LED5 LED6
Signal abnormal
Indoor unit abnormal
Discharge pipe
temperature abnormal
Outdoor heat exchanger
temperature abnormal
Outdoor temperature
abnormal
Power source
connection error
EEPROM abnormal
Outdoor high pressure
abnormal
Discharge pipe
temperature abnormal
: 0.5s ON / 0.5s OFF (flash) : OFF
: 0.1s ON / 0.1s OFF (flash) : Indefinite
ERROR LED DISPLAY LAYOUT
When the fault is cleared, the LED lamp goes off.
However, for discharge pipe temperature abnormal and high
pressure abnormal, the LED lamp lights continuously for 24
hours, as long as the power is not turned off.
Table 2
102003.12.15
ERROR CONTENTS

112003.12..15
Models : RD-90EC / RO-90EPC
REFRIGERANT SYSTEM DIAGRAM
Models : RD-90TC / RO-90TPB
Cooling
Heating
Dryer
Check Valve
Pressure SW
4Way Valve
Accumulator
Condenser
Tandem
Compressor
Evaporator
FlangeRefrigerant Pipe
28.58 mm (1-1/8")
Electronic
Expansion
Valve
Charging Valve
Strainer
FlareCapillary TubeFlange
Refrigerant Pipe
12.7 mm (1/2")
Dryer
Check Valve
Pressure SW
Accumulator
Condenser
Tandem
Compressor
Evaporator
FlangeRefrigerant Pipe
28.58 mm (1-1/8")
Electronic
Expansion
Valve
Charging Valve
Strainer
FlareFlange
Refrigerant Pipe
12.7 mm (1/2")
Cooling

122003.12.15
Models : RO-90EPC
RO-90TPB
527
45
45
39
41
653
42
761
164
356
355
167
176
226
132
134
133
100
12
361
289
762
166
160
9
477
4
2
117-3
949-2
949-1
DISASSEMBLY ILLUSTRATION

Model : RO-90EPC
132003.11.06
2

142003.11.06
Model : RO-90TPB
187
678
829
450
810
918
245
86
343
344
15
85
354
825
272
809
966
964
327
333
87
55
363
816
26
646
347 46
172
334
21
82
16-2
16-1
184-1
196-1
652-1 919-2
69-3
320-1
790-1
790-2
195

152003.11.06
Models : RO-90EPC
RO-90TPB
32
34
236
405
185
376
407
791
942
381-2
381-3
196-2
815-1
815-2
880-1
982-2
982-1

162003.11.06
Models : RD-90EC
RD-90TC
996
995
967
64
405
146
468
273
287
468
495 625
234
674
86
329
235
735
761
324
69
287
514
468
10
995
468
160
51
184-1
652-1
653-2

172003.11.06
Models : RD-90EC
RD-90TC
75
495
468
126
477
164
477
109
477
468
109
477
56-1
653-2
45-1
56-2

182003.11.06
Models : RD-90EC
RD-90TC
287
943
380
875
187
223
287
466
287
195
791
236
240
233-1
320-1
381-4
824-3
815-3
815-1
815-2
233-1
982-2
982-1
982-1
982-2

192003.12.15
Ref.
No. Description
RD-90EC RD-90TC RD-90EC RD-90TC
Ord.
Q'ty
Part No.
When you order parts, please make a photocopy of this page
and fill the number of the parts in the "Order" column.
10 Front Panel Assy 9364635002 9364635002
45-1 Bracket (Motor) Assy 9364630007 9364630007
51 Nut 0700005091 0700005091
56-1 Sirocco Fan-R
Sirocco Fan-L
9364665016 9364665016
56-2 9364665023 9364665023
64 Left Panel 9364650005 9364650005
69 Right Panel 9364649009 9364649009
75 Fan Panel 9364629001 9364629001
86 Gasket 9363272000 9363272000
109 Casing Assy 9364660004 9364660004
126 Motor Plate Assy 9364632001 9364632001
146 Evaporator Assy 9370825015 9370825015
160 Drain Pan Assy 9364652023 9364652023
164 Fan Motor Assy-In 9601004004 9601004004
184-1 Thermo. Spring-A 313728262708 313728262708
187 Clamp No.1219 313361271706 313361271706
195 Clamp SKB-100 313361275805 313361275805
223 Control Box Metal 9365185001 9365185001
233-1 Plate (Box) 9365146002 9365146002
234 Thermistor Assy-Room 9703299056 9703299056
235 Thermistor Assy-Pipe 9703297021
9704557520
9703297021
236 Controller PCB Assy 9704557377
240 Remote Control Unit 9703173066 9371438030
273 Rear Panel Assy 9364642000 9364642000
287 Cap (Power) 9352173011 9352173011
320-1 Wire Clamp Metal 313483219905 313483219905
324 Top Plate 9364634005 9364634005
IN DO OR U N IT
Ref.
No. Description Ord.
Q'ty
Part No.
329 Coupling Pipe Assy 9365347003 9365347003
380 Locking Spacer KGLS-6S 313209391403 313209391403
381-4 Locking Spacer KGPS-6S 0600118075 0600118075
405 Panel Side 9364648002 9364648002
466 Clamp NK-4N 313714328805 313714328805
468 Nut-A M8 9356998009 9356998009
477 Bellmouth 9364664002 9364664002
495 Clamp No.2U46 9352715006 9352715006
514 Control Box Cover Metal 9365186008 9365186008
625 Cord Bushing 9359240006 9359240006
652-1 Therm. Holder Pipe 313806262805 313806262805
653-2 Bolt HLSJ8025ZV 0700190018 0700190018
674 Bolt LSM10045 0700145117 0700145117
735 Distributor Assy 9365343005 9365343005
761 Side Panel-R Assy 9365147009 9365147009
791 Magnetic Relay 9900002015 9900002015
815-1 Terminal 3P 9356488005 9356488005
815-2 Terminal 3P 9363276046 9363276046
815-3 Terminal 3P 9703345012 9703345012
824-3 Fuse 0600222512 0600222512
875 Filter PCB Assy 9704561145 9704561145
943 Wire Clamp 0600231019 0600231019
967 Bonnet-B 313045417959 313045417959
982-1 Cord Clamp 9356857009 9356857009
982-2 Cord Clamp-B 9356858006 9356858006
995 Beam 9364647005 9364647005
996 Drain Pan (S) Assy 9364893013 9364893013
PA R T S LIS T