588149

Midea Alfa inverter MSH 07HRDN1 Handleiding

20
Verklein
Vergroot
Pagina terug
1/30
Pagina verder
DC INVERTER Wall Mounted (R410A)
Contents
1. Features…………………………………………………………………277
2. Specification………………………………………………………..……278
3. Dimensions…………………………………………………………..…..279
4. Refrigeration cycle diagram…………………………………………….281
5. Pressure table…………….……………………………………….…….282
6. Capacity table…………………………………………………………....284
7. Operation Limits………………………………………………………….286
8. PCB diagram……………………………………………………………..287
9. Wiring diagram…………………………………………………..……….289
10. Electronic function………………………………………….……………291
11. Troubleshooting……………………………………………………….…298
12. Characteristic of temp. sensor………………………………………….304
277
1.Features
1.1 Powerful at cooling/heating.
1.2 Low voltage start-up function.
1.3 Anti-icing function at cooling mode.
1.4 Anti-cold air function at heating mode.
1.5 Auto-defrosting.
1.6 Outdoor electric current protection
1.7 Temperature protection of the outdoor compressor top.
1.8 Restart protection for the compressor.
1.9 Error self -diagnosis function.
1.10 Protection against over-load or too-low current inputted through alternating current.
278
2.Specification
Model
MSH-09HRDN1 MSH-12HRDN1
Power su
pp
l
y
Ph-V-Hz 1
,
220-240V~
,
50Hz 1
,
220-240V~
,
50Hz
Ca
p
acit
y
Btu/h 9000
(
2050-11260
)
12000
(
2350-14500
)
In
p
ut W 760
250-1350
)
1070
(
270-1750
)
Rated current
A
3.3
(
1.5-7.0
)
4.8
(
1.5~8.5
)
Cooling
EER Btu/w.h 11.5 11.3
Ca
p
acit
y
Btu/h 10000
(
2400-13800
)
14000
(
2800-20500
)
In
p
ut W 780
240-1550
)
1120
(
260-2050
)
Rated current
A
3.4
(
1.4-8.0
)
5.1
(
1.4-10.0
)
Heating
COP W/W 3.8 3.7
Moisture Removal L/h 1.0 1.2
Max. in
p
ut consum
p
tion W 1900 2550
Max. current
A
10.0 12
Startin
g
current
A
10.0 12.0
Model 5CS090XCC 5CS102XFE
T
yp
e Scroll Scroll
Ca
p
acit
y
Btu/h 10510 11840
In
p
ut W 1000 1150
Rated current
(
RLA
)
A
4.4 5.2
Locked rotor Am
p(
LRA
)
A
40 40
Thermal
p
rotector CS-7L N115 CS-7L N115
Ca
p
acitor uF No No
Compressor
Refri
g
erant oil ml 360 360
Model RPG13H RPG20D
In
p
ut W 36.5 51.5
Ca
p
acitor uF 1.2 1.5
Indoor fan motor
S
p
eed
(
hi/mi/lo
)
r/min 1300/1000/850 1300/1000/900
.Number of rows 2 2
T
yp
e H
y
dro
p
hi/lic aluminium/
φ
7 INNEGROOVE TUBE
f.Coil len
g
th x hei
g
ht x width mm 578X252X26.74 635X315X27.34
Indoor coil
g
.Number of circuits 2 2
Indoor air flow
(
Hi/Mi/Lo
)
m3/h 570/480/350 700/520/420
Indoor noise level
(
Hi/Mi/Lo
)
dB
(
A
)
40/34/29 42/35/29
Dimension
(
W*H*D
)
mm 750×250×205 815×280×215
Packin
g
(
W*H*D
)
mm 830×335×285 915×360×290
Indoor unit
Net/Gross wei
g
ht K
g
8.0/10.0 8.5/10.5
Model YDK24-6F YDK36-6
In
p
ut W 56 68
Ca
p
acitor uF 2.5 2.5
Outdoor fan motor
S
p
eed r/min 800 900
.Number of rows 2 2
T
yp
e H
y
dro
p
hilic aluminium
/
φ
9.53
,
inner
g
roove tube H
y
dro
p
hilic aluminium/
φ
9.53
,
inner
g
roove tube
Coil len
g
th x hei
g
ht x width mm 680x550x44 680x550x44
Outdoor coil
.Number of circuits
2 2
Outdoor air flow m3/h 1700 1900
Outdoor noise level dB
(
A
)
51 56
Dimension
(
W*H*D
)
mm 760X590X285 760X590X285
Packin
g
(
W*H*D
)
mm 890X655X360 890X655X360
Outdoor unit
Net/Gross wei
g
ht K
g
42.0/45.5 42.0/45.5
Refri
g
erant t
yp
e R410A
g
1090 1170
Desi
g
n
p
ressure MPa 4.2 4.2
Li
q
uid side/ Gas side mm
(
inch
)
Ф6.35/Ф9.53 Ф6.35/Ф12.7
Max. refri
g
erant
p
i
p
e len
g
th m 12 12
Refrigerant piping
Max. difference in level m
5 5
Connection wirin
g
No No
Plu
g
t
yp
e 25
A
25
A
Thermostat t
yp
e Electrolic control Electrolic control
O
p
eration tem
p
10 32 10 32
1 The noise date is base on hemi-anechoic chamber, during actual operation, these values are normally somewhat different as a result of ambient
condition.
279
3.Dimensions
3.1 Indoor unit
MSH-09HRDN1
3.2 Indoor unit
MSH-12HRDN1
280
3.4 Outdoor unit
MSH-09HRDN1, MSH-12HRDN1
110
62
281
4.Refrigeration cycle diagram
282
5. Pressure table
Note:
*The pressure data is from 3 way valve, the pressure data are pressure above atmosphere.
*D: Dry bulb temp.
*W: Wet bulb temp.
5.1 MSH-09HRDN1
Cooling mode Outdoor temperature (Dry bulb temp)
Indoor
Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm
2
)
8.7 8.7 8.9 9.0 10.0 10.6
24ºC D
17ºC W
Pressure
( kg/cm
2
)
9.0 8.9 8.9 9.0 10.5 11.0
27ºC D
19ºC W
Pressure
( kg/cm
2
)
9.0 9.0 9.0 9.6 11.0 11.5
32ºC D
23ºC W
Pressure
( kg/cm
2
)
9.2 9.2 9.1 10.1 12.0 12.5
Heating mode
OUTDOOR CONDITIONS
Indoor Conditions
Pressure
12ºC D
11ºC W
7ºC D
6ºC W
0ºC D
-1ºC W
-4ºC D
-6ºC W
-7ºC D
-9ºC W
-15ºC D
-xºC W
15ºC
Pressure
( kg/cm
2
)
32.0 34.0 33.5 31.0 28.0 27.0
18ºC
Pressure
( kg/cm
2
)
34.5 34.0 35.0 32.5 29.0 27.5
20ºC
Pressure
( kg/cm
2
)
36.5 35.5 36.0 33.5 30.0 28.5
22ºC
Pressure
( kg/cm
2
)
37.5 37.0 36.5 35.0 31.5 29.0
283
5.2 MSH-12HRDN1
Cooling mode Outdoor temperature (Dry bulb temp)
Indoor
Conditions
Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
21ºC D
15ºC W
Pressure
( kg/cm
2
)
6.4 6.6 6.8 7.2 7.6 8.1
24ºC D
17ºC W
Pressure
( kg/cm
2
)
6.6 6.9 7.0 7.6 8.2 8.7
27ºC D
19ºC W
Pressure
( kg/cm
2
)
6.9 7.0 7.3 7.6 8.6 9.2
32ºC D
23ºC W
Pressure
( kg/cm
2
)
6.9 7.4 7.6 8.1 9.4 9.8
Heating mode
OUTDOOR CONDITIONS
Indoor Conditions
Pressure
12ºC D
11ºC W
7ºC D
6ºC W
0ºC D
-1ºC W
-4ºC D
-6ºC W
-7ºC D
-9ºC W
-15ºC D
-xºC W
15ºC
Pressure
( kg/cm
2
)
32.5 31.5 31.0 29.0 28.0 25.5
18ºC
Pressure
( kg/cm
2
)
34.0 33.0 31.0 30.5 28.5 26.0
20ºC
Pressure
( kg/cm
2
)
33.0 34.0 33.5 30.0 29.0 27.5
22ºC
Pressure
( kg/cm
2
)
36.0 35..0 34.5 30.0 29.0 28.0
284
6. Capacity table
6.1 MSH-09HRDN1
COOLING OUTDOOR TEMPERATURE DRY
Indoor
Conditions
21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW 2.87 3.00 2.60 2.34 1.98 1.70 1.53
Sensitive capacity kW 1.84 1.91 2.03 1.99 1.65 1.46 1.32
21ºC D
15ºC W
Input kW. 0.701 0.72 0.80 0.86 0.89 0.98 1.16
Total capacity kW 2.98 3.15 2.85 2.45 2.30 1.95 1.74
Sensitive capacity kW 1.84 2.01 2.23 2.11 1.93 1.72 1.50
24ºC D
17ºC W
Input kW. 0.72 0.73 0.82 0.90 0.92 1.01 1.17
Total capacity kW 3.13 3.20 2.98
2.58
2.60 2.34 2.03
Sensitive capacity kW 2.04 2.15 2.30
1.96
2.23 2.09 1.73
27ºC D
19ºC W
Input kW. 0.75 0.78 0.85
0.76
0.96 1.04 1.19
Total capacity kW 3.29 3.33 3.12 3.05 2.80 2.62 2.32
Sensitive capacity kW 2.17 2.15 2.43 2.56 2.38 2.33 2.05
32ºC D
23ºC W
Input kW. 0.78 0.80 0.86 1.00 1.01 1.08 1.23
HEATING OUTDOOR CONDITIONS
Indoor
Conditions
24ºC D
18ºC W
12ºC D
11ºC W
7ºC D
6ºC W
4ºC D
3ºC W
0ºC D
-1ºC W
-5ºC D
-6ºC W
-7ºC D
-8ºC W
-15ºC D
-16ºC
W
Capacity kW 3.5 4.11 4.10 3.80 3.49 3.12 3.01 1.72
15ºC
Input kW. 0.958 1.53 1.57 1.56 1.51 1.39 1.37 1.30
Capacity kW 3.45 4.10 4.05 3.70 3.48 3.11 2.99 1.70
18ºC
Input kW. 0.96 1.55 1.58 1.60 1.52 1.40 1.38 1.32
Capacity kW 3.44 4.05
2.87
3.69 3.47 3.00 2.86 1.69
20ºC
Input kW. 0.965 1.60
0.79
1.63 1.54 1.42 1.40 1.35
Capacity kW 3.435 4.00 3.932 3.65 3.47 2.97 2.81 1.68
22ºC
Input kW. 0.98 1.65
1.64
1.67 1.58 1.45 1.43 1.38
Capacity kW 3.4 3.95 3.85 3.60 3.43 2.89 2.79 1.67
27ºC
Input kW. 0.99 1.69 1.69 1.70 1.61 1.50 1.48 1.40
285
6.2 MSH-12HRDN1
COOLING OUTDOOR TEMPERATURE DRY
Indoor
Conditions
21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC
Total capacity kW 3.187 3.48 3.30 3.01 2.81 2.38 2.16
Sensitive capacity kW 2.23 2.40 2.38 2.28 2.25 2.10 1.90
21ºC D
15ºC W
Input kW. 0.924 1.08 1.18 1.30 1.39 1.45 1.59
Total capacity kW 3.579 3.76 3.65 3.43 2.98 2.70 2.44
Sensitive capacity kW 2.505 2.61 2.66 2.61 2.41 2.35 2.20
24ºC D
17ºC W
Input kW. 0.957 1.10 1.19 1.33 1.41 1.49 1.61
Total capacity kW 3.879 4.09 3.90
3.50
3.19 2.99 2.79
Sensitive capacity kW 2.792 2.86 2.89
2.80
2.58 2.60 2.45
27ºC D
19ºC W
Input kW. 0.979 1.11 1.20
1.07
1.45 1.51 1.60
Total capacity kW 4.087 4.32 4.02 3.80 3.62 3.40 3.28
Sensitive capacity kW 3.168 3.80 3.01 3.07 3.11 2.96 2.89
32ºC D
23ºC W
Input kW. 0.989 1.12 1.25 1.40 1.48 1.55 1.68
HEATING OUTDOOR CONDITIONS
Indoor
Conditions
24ºC D
18ºC W
12ºC D
11ºC W
7ºC D
6ºC W
4ºC D
3ºC W
0ºC D
-1ºC W
-5ºC D
-6ºC W
-7ºC D
-8ºC W
-15ºC D
-16ºC
W
Capacity kW 4.875 6.15 5.72 5.13 4.52 4.21 3.75 3.41
15ºC
Input kW. 1.568 2.07 2.20 2.09 2.01 1.99 1.80 1.76
Capacity kW 4.801 6.09 5.58 5.02 4.39 4.10 3.59 3.27
18ºC
Input kW. 1.6 2.18 2.39 2.20 2.16 2.09 1.83 1.81
Capacity kW 4.684 5.89
4.03
4.90 4.21 3.89 3.37 3.11
20ºC
Input kW. 1.658 2.21
1.11
2.35 2.27 2.15 1.99 1.92
Capacity kW 4.521 5.58
5.39
4.71 4.10 3.70 3.17 2.99
22ºC
Input kW. 1.729 2.28
2.45
2.41 2.40 2.25 2.11 2.00
Capacity kW 4.387 5.37 4.99 4.48 3.90 3.49 3.01 2.71
27ºC
Input kW. 1.804 2.39 2.61 2.55 2.51 2.38 2.27 2.13
286
7. Operation Limits
7.1 Cooling mode
Indoor temperature: 17 32
Outdoor temperature: 0 50
2.2 Heating mode
Indoor temperature: 17 27
Outdoor temperature: -15 34
2.3 Dry mode
Indoor temperature: 10 32
Outdoor temperature: 0 50
287
8 PCB diagram
8.1 Display board
1 2 3 4 56
A
B
C
D
6
54321
D
C
B
A
Scale Sheet
Size FCSM No. DWG No. Rev
0 of 0
B
LED2
FROM INDOOR PCB
1
2
3
4
5
6
7
CN1
+5
LED3LED1
+5
Q1
9012
TIME Y
DEF R
AUTO G
R1 102
R11 391
R12 391
R13 391
R14 391
R15 221
104
C1
C3
104
Q2
9013
R5
102
R6
221
R4 221
R2 102
R3 221
R9 221
R8
102
Q4
9012
Q3
9012
R16 391
R17 221
C5
104
10u/16V
E4
REC1
R10
151
47u/16V
E2
R7
221
CLK
DATA
REMOTE
+5V
GND
DIGI
8LED
Dsa
1
Dsb
2
Q0
3
Q1
4
Q2
5
Q3
6
GND
7
CP
8
MR
9
Q4
10
Q5
11
Q6
12
Q7
13
Vcc
14
IC1
74HC164
+5
+5
+5
+5
ddpe
f
g
dig.2
dig.1
c
b
a
C6
102
DISP1
DISP2
8.2 Indoor main PCB
1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
IC 6
PC817
3
4
DZ2
24V
C13
473
IC 1 0 P C8 5 1
N
L
1
2
CN10
1
2
CN9
VSS0
1
VDD0
2
P25
3
P26
4
P00
5
P01
6
P02
7
P03
8
P04
9
VSS1
10
P05
11
P50
12
P51
13
P52
14
P53
15
AVDD
16
AVREF
17
AN1 0
18
AN1 1
19
AN1 2
20
AN1 3
21
AN1 4
22
AN1 5
23
AVSS
24
P10
25
P11
26
P30
27
P31
28
P32
29
P33
30
P20
31
VDD1
32
P21
33
P22
34
P23
35
P24
36
Vp p/IC
37
XT2
38
XT1
39
RESET
40
X2
41
X1
42
IC 8
UPD789166
X1
2.5M
R10
105
RST
R11
10K
R12
10K
C11
104
+5V
R13 103
1
2
3
IC 9
7042
RST
+5V
LED_ C
DATA
TXD
CLK
DIGI_C
BUZZ
ZERO
RXD
REMOTE
SDA
SCL
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WC
7
VCC
8
IC11 24C04
+5V
C19 104
R29
103
R28
103
SDA
SCL
E11
47uF/16V
R41
8061
C24
223
R42 202
+5V
1
2
CN14
T1_ roo m
T1_ roo m
E16
47uF/16V
R36
8061
C17
223
R27 202
+5V
1
2
CN11
T2_ pip e
T2_ pip e
E10 100uF/16V
T2_pipe
T1_ room
+5V
SW1
C21
104
R35
103
+5V
SW_KEY
SW_KEY
STEP1
STEP2
STEP3
STEP4
FAN_BACK
INDOORFAN
+5V
E7
100uF/16V
C10
223
Q3
9014
R38
123
C22
223
D1 3 1 N414 8
D1 4 1 N414 8
R37 123
R39
123
R40 512
+5V
ZER O
B
A
C23
223
E8
47uF/16V
IN1
1
IN2
2
IN3
3
IN4
4
IN5
5
IN6
6
IN7
7
VSS
8
VDD
9
OUT7
10
OUT6
11
OUT5
12
OUT4
13
OUT3
14
OUT2
15
OUT1
16
IC 4
IC/ULN2003
C7
104
+12V
1
2
3
4
5
CN3
STEP1
STEP2
STEP3
STEP4
BUZZ
INDOORFAN
B1
R8
102
+12V
IC 5
PC817
R7
102
R6
202
Q1
9014
R9
512
IS O+ 12 V
ISOGND
C25
1.2(1.5)uF/450V
T1T2
G
TR1
BT131
L1
C2
333/250VAC
R12K
+5V
R3
561
E2
470uF/25V
R4
11K/2W
DZ1
12V
D5
IN4007
R5
11K/2W
L
N
R2 51/1W
INDOORFAN'
1
2
CN9
N
ZR1
14D681K
C5
333/250VAC
1
2
CN2
TRANS_ IN
t
PTC1
82RM
1
2
3
4
5
CN1
FAN_I N
IC 1 PC 81 7
FUSE1
3.15A/250V
C8
104
E5
2200uF/25V
ISOGND
D8
D9
D7
D6
Vin
1
GND
2
Vo ut
3
IC12 7812
IS O+ 12 V
E6
1000uF/25V
C9
104
IN4007*4
1
2
3
4
CN5
TRANS_ OUT
14. 5VAC 350mA
14. 5VAC 200mA
C3
104
E1
2200uF/25V
D3
D4
D2
D1
Vin
1
GND
2
Vo ut
3
IC 2 7 81 2
+12V
E3
1000uF/25V
C4
104
IN4007*4
Vin
1
GND
2
Vo ut
3
IC 3 7 80 5
+5V
E4
470uF/16V
C6
104
CHUCHEN
CHUCHEN
INDOORFAN'
1
2
CN6
R33
103
+5V
SELECT3
SELECT1
TXD
RXD
R26202
R25
512
R24
681
R19
100K
R20
11K/2W
R21
11K/2W
R22
123
R23
512
R18
5.1K
R17
2K/2W
C15
103
C16
471/250V
C14
103
D1 0
D1 1
E9
100uF/35V
POWER CIRCUIT
COMMUNICATE CIRCUIT
CORTROL CIRCUIT
R31
103
+5V
+5V
SELECT1
+5V
Q2
9014
SELECT2
R34512
D1 5
IN4148
C20
103
+5V
1
2
3
CN13
FAN_BACK
+12V
FAN_BACK
DISP LAY
C18
102
+5V
REMOTE
R30 101
R14
103
R15
103
R16
103
+5V
1
2
3
4
5
6
7
CN7
DIGI_C
DATA
CLK
LED_ C
A
B
1
2
CN12
IS O+ 12 V
1
2
CN10
L
IN4007
1
CN8
S
IN4007
R32
103
+5V
SELECT2
J2 J3 J1
SELECT3
1
2
3
CN4
288
8.3 Outdoor main PCB
1 2 3 4 56
A
B
C
D
6
54321
D
C
B
A
Title
Number RevisionSize
B
Date: 2-Feb-2004 Sheet of
File: G:\ \ R312\CE-KFR26(35)GW-BP2N1Y-OUTDOOR.DDB
Drawn By:
R42
220K
R41
220K
R40
220K
R38
47K
R35
47K
R32
47K
C26
2.2uF
C27
2.2uF
C25
2.2uf
C22
2.2uF
C23
2.2uF
C24
2.2uF
IN1 +
5
IN1 -
4
IN2 +
6
IN2 -
7
IN3 +
9
IN3 -
8
IN4 +
11
IN4 -
10
OUT1
2
OUT2
1
OUT3
14
OUT4
13
V+
3
GND
12
U4
LM139
R43
10K
R37
10K
R34
10K
C34
472
C33
472
C32
472
PIO6 /CLKOUT
1
PIO5/RFS1
2
PIO4
3
PIO3
4
PIO2
5
PIO1
6
PIO0
7
CLKIN
8
XTAL
9
VDD
10
PWMTRIP
11
IS EN SE
12
V2
13
V1
14
XAUX0
15
XAUX1
16
VAUX2
17
IC ONS T
18
GND
19
RSET
20
CH
21
CL
22
BH
23
BL
24
AH
25
AL
26
PIO8 /AUX0
27
PIO7
28
U1
ADMC3 28
Y2
10M
C31
20PF
C30
20PF
U+
V-
V+
W-
W+
C28
104
U-
POS1POS0
POS2
+5V
U
V
W
POS0
POS1
POS2
R39
100K
R36
100K
R33
100K
+15V
+15V
TXD
+15V
R55
R54
R53
R52
R51
R50
6*100
+15V
R47
2K
R46
2K
R45
2K
+15V
+15V
+15V
R58
560
R57
560
R56
560
+5V
+5V
+5V
C38
472
C37
472
C36
472
1
2
3
CN11
W-
W+
V-
V+
U-
U+
+12V
+5V
1
2
3
4
5
6
7
8
9
10
CN5
1
2
J1
+15V
RXD
DISPLAY
4-WAY
OUT FAN
C29
330
CURRENT SAMPLE
VOLTAGE SAMPLE
R17
4.3k
R14
5.1k
1
2
CN4
R15
5.1k
R18
2k
R29
2k
C17
224
C18
104
C19
104
+5V
T_OUTSIDE
T_PIPE
T_YJ
T_OUTSIDE
T_PIPE
T_YJ
R49
10K
C35
224
C41
101
SW1
REST
REST
R30
10k
C20
103
ALRAM
C21
101
ALRAM
R44 5.1K
1
2
J4
+5V
1
2
J3
+5V
1
2
J2
+12V
C2
47uF
C3
47uF
C4
103
C5
47UF/16v
+5V
R2
1k
R3 5.1K
R4
16K
C6
223
C7
47uf
CT2
0057W
CURRENT TE ST
AC-IN
D8
LED
R6
390
+5V
D1
4007
R1
16K
R7
5.1K
C1
102
R5
1K
VDD
1
GND
2
RESET
3
IC 1
7042
+5V
R8
103
C8
101
D4
D5
D6
D7
4007
D2
D3
U8
U7
U2
Q1
9013
R16
4.3k
1A
1
1Y
2
2A
3
2Y
4
3A
5
3Y
6
GND
7
VCC
14
6A
13
6Y
12
5A
11
5Y
10
4A
9
4Y
8
IC 3 7 4HC 0 4
Q3
9013
Q4
9013
R10
2K
R11
2K
R12
2K
Q2
9013
R9
2K
+5V
POWER RLY
C9
220uf/25v
FAN RLY
4-WAY RLY
R13
12K
1
2
3
4
CN3
D9 D1 0 D11
C10
10uf/16v
S1
+5V
+12V +12V +12V
+5V
CURRENT SAMPLE
VOLTAGE SAMPLE
289
9 Wiring diagram
9.1 MSH-09HRDN1 indoor unit
RED
9.2 MSH-09HRDN1 outdoor unit
~
~
-
+
~
~
-
+
290
9.3 MSH-12HRDN1 indoor unit
RED
9.4 MSH-12HRDN1 outdoor unit
~
~
-
+
~
~
-
+
Model
Powe r supply
Input Ra ted Amp
(Switch/Fuse )
9000Btu/h
Pow e r Cord Size
25A
12 000Btu/h
25A
1.5mm
2
1.5mm
2
220-240V~ 50Hz
291
10 Electronic function
10.1 Electric Control working environment.
10.1.1 Input voltage: 175~253V.
10.1.2 Input power frequency:50Hz.
10.1.3 Indoor fan normal working amp is less than 1A.
10.1.4 Outdoor fan. Normal working amp is less than 1.5A.
10.1.5 Four-way valve normal working amp is less than 1A.
10.1.6 Swing motor: DC12V.
10.2 Display board
1
22
3
4
5
6
10.2.1 AUTO indicator
This indicator illuminates when the air conditioner is in AUTO operation.
10.2.2 TIMER indicator
This indicator illuminates when TIMER is set ON/OFF.
10.2.3 PRE.-DEF. Indicator (For Cooling & Heating models only)
This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air
control feature is activated in heating mode.
10.2.4 TEMPERATURE indicator
Usually it displays the temperature settings. When change the setting temperature, this indicator begins
to flash, and stops 20 seconds later.
It displays the room temperature when the air conditioner is in FAN only operation.
When the unit stops operation, it returns to original factory settings.
Displays the malfunction code or protection code.
10.2.5 OPERATION indicator
This indicator flashes after power is on and illuminates when the unit is in operation.
10.2.6 FREQUENCY indicator
This indicator appears only when the compressor is in operation and indicates the current operating
frequency.
292
10.3 Protection
10.3.1. 3 minutes delay at restart for compressor.
10.3.2. Temperature protection of compressor top, compressor stops when the temp. of top of compressor is
more than 115 , compressor runs when the temp. of top of compressor is less than 100 .
10.3.3. Voltage protection, unit stop when the voltage is more than 260V and less than 175V.
10.3.4. Inverter module Protection , Inverter module Protection itself has a protection function against current,
voltage and temperature.
10.3.5. Sensor protection at open circuit and breaking disconnection
10.3.6. Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High Fan+300RPM)or
too low(lower than 400RPM), the unit stops and LED displays failure information and can’t return to
normal operation automatically.
10.3.7. Cross Zero signal error warning. If there is no Cross Zero signals in 4 minutes, the unit stops and LED
displays failure information and can’t return to normal operation automatically.
10.4 Fan-only mode
Fan speed is high/mid/low/ Auto
10.5. Cooling mode
10.5.1 The 4-way valve is closed at cooling mode.
10.5.2 The action of the compressor and the outdoor fan:
Condition
T=Indoor Temp.
Ts=Setting Temp.
Compressor Outdoor fan
T> Ts+1 On On Room temp. up
T<Ts+1 Off Off
T> Ts On On Room temp. down
T<Ts Off Off
10.5.3 Auto fan at cooling mode:
Condition
T=Indoor Temp.-Setting Temp.
Indoor fan speed
T<1.5 Low
1.5 <T<4 Mid.
Room temp. up
T>4 High
T> 3 High
1<T<3 Mid.
Room temp. down
T<1 Low
10.5.4 Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. )
Evaporator Temp. Compressor
0 <T< 4 Decrease frequency of compressor
T< 0 Off
293
10.5.5 Current protection
Model Current Compressor
I>12 A Off
10.5A<I<12A
Decrease frequency of compressor
Current up MSH-12HRDN1
I< 10.5A On
I>11.5 A Off
8.5A<I<11.5A
Decrease frequency of compressor
Current down MSH-09HRDN1
I< 8.5A On
11.5.6 Rated capacity test
Set mode to cooling mode
Set temp. to 17°C
Set fan speed to high speed
Push turbo button 5 times in 10 seconds.
Using special remoter controller
After 5 hours, cancel rated capacity test
Turbo function
Increasing frequency of compressor
After operating 30 minutes, return automatically to the mode and temp. previously selected.
10.6. Dehumidifying mode
10.6.1. The 4-way valve is off
10.6.2. the indoor fan is fixed in breeze speed
10.6.3. Compressor run in low frequency
10.6.4. Low room temperature protection:
When room temperature decreases to below 10 , compressor and outdoor fan will stop(indoor fan
is Breeze). Dehumidifying operation will be resumed when room temperature restores to over 12 .
10.6.5. At dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same as that of
cooling mode.
10.7. Heating mode
10.7.1. Generally, the 4-way valve is open at heating mode, but it is closed at defrosting. 4-way valve must
delay 2 minutes compared with compressor if the compressor changed into non-heating mode or
turned off. 4-way valve doesn't delay in dehumidifying mode.
10.7.2. Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except
for the defrosting mode or the end of defrost.
10.7.3. Action of compressor and outdoor fan motor at heating mode: compressor must run for 7 minutes
after starting and then judge temperature. Meanwhile other protections are still valid.
Condition Compressor Outdoor fan
T> Ts+3 Off Off Room temp. up
T<Ts+3 On On
T< Ts+2 On On Room temp. down
T>Ts+2 Off Off
10.7.4. Indoor Fan actions at heating mode
Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind
294
function prevails.
Anti-cold wind control function at heating mode
Condition
T= Indoor exchanger temp.
Indoor fan speed
T<34
Off
34 <T<37
Breeze
37 <T<44
Low speed
Indoor exchanger temp. up
T>
44
Setting fan speed
T> 38
Setting fan speed
33 <T<38
Low sped
18 <T<33
Breeze
Indoor exchanger temp. down
T<18
Off
10.7.5. Auto wind at heating mode
Condition
T=Indoor Temp.-Setting Temp.
Indoor fan speed
T<1.5 High
1.5 <T<2.5
Med.
Room temp. up
T>2.5 Low
T<1.0 High
1.0 <T<2.0
Med.
Room temp. down
T>2.0 Low
10.7.6 Indoor evaporator high-temperature protection at heating mode
Condition
T= Indoor exchanger temp.
Compressor
T<48
On
53 <T<63 Decrease frequency of compressor
T>63
Off
10.7.7 The current protection
Model Current Compressor
I>14.0 A Off
12.0.A<I<14.0A
Decrease frequency of compressor
MSH-12HRDN1
I< 12.0A On
I>12.0 A Off
10.0A<I<12.0A
Decrease frequency of compressor
Current up
MSH-09HRDN1
I< 8.5A On
I>14.0 A Off
10.5A<I<14.0A Decrease frequency of compressor
MSH-12HRDN1
I< 10.5A On
I>12.0 A Off
8.5A<I<12.0A Decrease frequency of compressor
Current down
MSH-09HRDN1
I< 8.5A On
295
10.8. Defrosting operation (Available for heating only).
10.8.1 Defrosting condition:
10.8.1.1 When outdoor temp. is more than 0 ,
Defrosting starts when meeting one of the following conditions,
a. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than
40 minutes, and the temperature remains consecutively -6°c for more than 3 minutes,
b. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than
80 minutes, and the temperature remains consecutively -4°c for more than 3 minutes
10.8.1.2 When outdoor temp. is less than 0 ,
Defrosting starts when meeting one of the following conditions,
a. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than
40 minutes, and the temperature remains consecutively -6°c for more than 3 minutes,
b. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than
40 minutes, and the temperature remains consecutively -6°c for more than 3 minutes,
c. The temperature of indoor unit pipe decreases 5°c than before
10.8.1.3 The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than
120 minutes, and the temperature remains consecutively -2°c for more than 3 minutes
10.8.2 Ending condition of defrosting
If one of following conditions is satisfied, end the defrost and turn into heating mode:
a. The defrost time has reached to 10 minutes.
b. When the temperature of outdoor heat exchanger rises up to 8°C and this continues for more
than 80 seconds.
c. When the temperature of outdoor heat exchanger rises up to 12°C
10.8.3 Defrosting Actions:
max. 10 minutes
60s
ON 10s 30s
Com. OFF
ON ON
4 way valve OFF
ON ON
Outdoor fan OFF
ON ON
Indoor fan OFF
breeze
296
10.8.4 Rated capacity test
Set mode to cooling mode
Set temp. to 30 °C
Set fan speed to high speed
Push turbo button 5 times in 10 seconds.
Using special remoter controller
After 5 hours, cancel rated capacity test
10.9 Outdoor low temperature protection (optional)
Factory standard unit has not this function.
Unit stops when outdoor temp. is low than -15°C and lasting time more than 60 minutes, and unit runs
again when outdoor temp. more than -12°C.
10.10. Automatic operation mode
The air conditioner automatically selects one of the following operation modes: cooling, heating or fan
only according to the temp. difference between room temp. (TA) and set temp. (TS).
TA—TS Operation mode
TA—TS>2 Cooling
-1 ≤TA-TS≤+2 Fan-only
TA-TS<-1 Heating (air-only for cooling only type)
10.11. Manual switch
10.11.1 Mode changes when push this button .
Cooing modeÆ Auto modeÆUnit offÆ Cooing mode
10.11.2. At Cooing mode, after 30 minutes cooling operation whose fan speed is set as low, the A/C operates
with a setting temp. of 24 .
10.11.3. At auto mode, the A/C operates with a set temp. of 24
10.12. Timer Function
10.12.1. The maximum length of timer is 24 hours and the minimum resolving power is 15 minutes.
10.12.2. Timer on: first turn off the A/C, the A/C will be automatically on at the set time.
10.12.3. Timer off: first turn on the A/C, the A/C will be automatically off at the set time
10.12.4. Timer on/off function( on time is earlier than off time): first turn off the A/C, it will be automatically on
at set time, and later be off at the set time, then unit turns on at set time.
10.12.5. Timer off/on function( off time is earlier than on time): first turn on the A/C, it will be automatically off
at set time, and later be on at the set time, then unit turns off at set time.
10.13. Sleep mode
10.13.1 It is available at cooling, heating or auto mode.
10.13.2 Cooling:
The set temperature rise 1 per hour. Two hours later, the set temperature will maintain as a
constant and the fan speed is kept at low speed.
10.13.3 Heating:
The set temperature decrease 1 per hour. Two hours later, the set temperature will maintain as a
297
constant and the air circulation is kept at low speed (Cold air proof function takes precedence over
all).
10.13.4 Auto:
The Sleep Mode running function operates in accordance with selected running mode
by auto mode.
10.13.5 After 7 hours, unit cancels this modes automatically.
10.14 Auto restart function
In case of a sudden power failure, this function automatically sets the unit to previous settings
before the power failure when power returns.
8.15 Plasma
Plasma turns on when the indoor fan runs.
Plasma turns off automatically when front panel is opened.
298
11.Troubleshooting
11.1 Indoor Unit Error Display
Display LED STATUS
E0 EEPROM error
E1 Indoor / outdoor units communication protection
E2 Zero-crossing examination error
E3 Fan speed beyond control
E4
E5 Open or short circuit of outdoor temperature sensor
E6 Room temperature or evaporator temperature sensor open or short circuit of
P0 Module protection
P1 Over load or too low voltage protection
P2 Compressor top protection against temperature
P3 Outdoor low temp. protection
P4 Inverter compressor error
Note: E4: Reserved function
11.1.1
Display LED STATUS
E0 EEPROM error
Yes
Temporarily turn off the power supply and turn it on again in about 1 minutes
Does the trouble occur again?
Check indoor model responding to right outdoor model
Replace the indoor PCB
299
11.1.2
Display LED STATUS
E1 Indoor / outdoor units communication protection
Is the LED in outdoor main PCB light?
Is the +5 voltage in outdoor main board?
Outdoor main PCB: CN5 between No7(Blue) and
No8(Yellow)
Main chip(ADMCF328): between No10 and No19
Check the PC817,PC851 (indoor PCB and Outdoor main PCB)
Is PC817 or PC851 normal?
Inverter module defective.
Rectifier defective
No
Yes
No
Yes
If PC817 or PC851 are defective, change indoor PCB or outdoor power PCB .
Yes
1. check the signal wire between, is it
connected good.
2. replace the PCB of indoor unit ,is the
unit ok?
3. replace the PCB of power suppl
y
board ,is the unit ok?
4
300
11.1.3
Display LED STATUS
E2 Zero-crossing examination error
11.1.4
Display LED STATUS
E3 Fan speed beyond control
11.1.5
Display LED STATUS
E5 Open or short circuit of outdoor temperature sensor
yes No
Is power supply right?
Is connector connection good?
Indoor PCB is defective
Yes
Yes
Is connector connection good?
Is voltage being applied to the fan motor?
(
ran
g
90v-160v between mid
p
in and N on CN2
Indoor fan motor is defective
Repair the connector
Indoor PCB is defective
No
Yes
Yes
No
Is connection to connector good?
Replace the sensor
Repair connector
301
11.1.6
Display LED STATUS
E6 Room temperature or evaporator temperature sensor open or short circuit of
yes No
11.1.7
Display LED STATUS
P0 Module protection
yes No
Yes
No Yes
Is connection to connector good?
Replace the sensor
Repair connector
Is connection to connector good?
Is the wires to compressor right
Check the outdoor inverter module.
Is it breakdown between P-N,P-U,P-V;N-W,N-U,N-V
A
t inverter module
Check compressor
Inverter module is defective
Repair connector
302
11.1.8
Display LED STATUS
P1 Over load or too low voltage protection
11.1.9
Display LED STATUS
P2 Compressor top protection against temperature
Off: 120c; On: 105c
No
Is the power supply right?
Check the outdoor power board
Replace the outdoor power board
Yes
Does compressor operate?
Is refrigerant circulation volume normal?
Gas charging
Is abnormality the same after gas charging
Check refrigerant system (such as clogging of capillary, etc)
Is protector normal?
Check the outdoor main PCB.
Replace protector
No
Yes
Yes
No
No
303
11.1.10
Display LED STATUS
P3 Outdoor low temp. protection
This is optional, factory standard unit has not this function.
Unit stops when outdoor temp. is low than -15°C and lasting time more than 60 minutes, and unit runs
again when outdoor temp. more than -12°C.
11.1.11
Display LED STATUS
P4 Inverter compressor error
Is the outdoor temp. low than -15°C?
Is the outdoor temp sensor right according to the table in clause 12
Replace the outdoor main board
No
Yes
A
re the U,V,W connected to compressor and inverter module right?
A
re the connectors CN6 and CN 11 right?
Is there +15 voltage between CN6
Yes
Yes
Replace inverter module
No
Yes
Replace outdoor main PCB
If the problem comes to again, check wingding resistance of inverter compressor, is it 0.64 ohm?
Replace inverter compressor
No
304
12. Characteristic of temp. sensor
Temp. Resistance KΩ Temp. Resistance KΩ Temp. Resistance KΩ
-10 62.2756 17 14.6181 44 4.3874
-9 58.7079 18 13.918 45 4.2126
-8 56.3694 19 13.2631 46 4.0459
-7 52.2438 20 12.6431 47 3.8867
-6 49.3161 21 12.0561 48 3.7348
-5 46.5725 22 11.5 49 3.5896
-4 44 23 10.9731 50 3.451
-3 41.5878 24 10.4736 51 3.3185
-2 39.8239 25 10 52 3.1918
-1 37.1988 26 9.5507 53 3.0707
0 35.2024 27 9.1245 54 2.959
1 33.3269 28 8.7198 55 2.8442
2 31.5635 29 8.3357 56 2.7382
3 29.9058 30 7.9708 57 2.6368
4 28.3459 31 7.6241 58 2.5397
5 26.8778 32 7.2946 59 2.4468
6 25.4954 33 6.9814 60 2.3577
7 24.1932 34 6.6835 61 2.2725
8 22.5662 35 6.4002 62 2.1907
9 21.8094 36 6.1306 63 2.1124
10 20.7184 37 5.8736 64 2.0373
11 19.6891 38 5.6296 65 1.9653
12 18.7177 39 5.3969 66 1.8963
13 17.8005 40 5.1752 67 1.830
14 16.9341 41 4.9639 68 1.7665
15 16.1156 42 4.7625 69 1.7055
16 15.3418 43 4.5705 70 1.6469
305
… 20 …

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