Midea MSH-07CRN1 User guide

CONTENTS

1. DIAGNOSTIC CHART 1

2. The service rules of the R407C(R410a) product 5

3. BRIGHT STAR SERIES 8

4. BRIGHT ECO SERIES 45

5. GLORY (ECO)STAR SERIES 65

6. GLORY GIANT 1 97

7. GLORY GIANT 2 115

8. LIGHT STAR SERIES 127

9. CUTE STAR SERIES 139

10. Beta GLORY R407 157

11. AC INVERT SERIES 178

MULTI INVERTER ECO 197

12.

13. Multi-system 1 to 2 214

14. Multi-system 1 to 3 228

15. Alfa Glory H series

(R410A) 244

16. DC inverter(R410A) 276

17. F1 STAR SERIES 305

18. Alfa Glory H series 330

AFLA GLORY SERIES (R410A)

Contents

1. Features………………………………………………………………… 245

2. Specification………………………………………………………..……246

3. Dimensions…………………………………………………………..… 249

4. Refrigeration cycle diagram……………………………………………252

5. Pressure table…………….……………………………………….……253

6. Capacity table…………………………………………………………...256

7. Wiring diagram…………………………………………………..………261

8. Electronic function………………………………………….…………...265

9. Troubleshooting……………………………………………………….…273

10. Characteristic of temp. sensor…………………………………………278

1.Features

1.1 Compact design

1.2 High efficiency and quiet operation

1.3 A class energy level

245

2.Specification

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

~

-

~

-

~

-

~

-

~

-

~

Cooling

——

——

——

Heating

——

-

-

-

-

-

-

-

-

-

-

-

-

Compressor

Indoor fan motor

Indoor coil

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

Indoor unit

-

-

-

-

-

-

Outdoor fan motor

Outdoor coil

*

*

*

*

Outdoor unit

Refrigerant piping

-

-

-

-

-

-

~-

-

-~

~-

-

-~

~-

-

-~

-

-

-

-

-

-

’

’’'

★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.

246

3.Dimensions

3.1 Indoor unit
MSH-07CRN1, MSH-07HRN1, MSH-09CRN1, MSH-09HRN1

3.2 Indoor unit
MSH-12CRN1, MSH-12HRN1

247

3.4 Outdoor unit
MSH-07CRN1, MSH-07HRN1

3.5 Outdoor unit
MSH-09CRN1, MSH-09HRN1

248

3.6 Outdoor unit
MSH-12CRN1, MSH-12HRN1

530

315

290

750

110

62

590

285

249

4.Refrigeration cycle diagram

250

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-07CRN1

Cooling mode Outdoor temperature (Dry bulb temp)

Indoor Conditions

Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D

15ºC W

Pressure

( kg/cm2 )

6.2 6.8 7.2 8.0 8.5 9.5

24ºC D

17ºC W

Pressure

( kg/cm2 )

6.3 6.5 7.5 8.0 8.7 9.5

27ºC D

19ºC W

Pressure

( kg/cm2 )

6.1 6.9 7.7 8.2 9.1 10.0

32ºC D

23ºC W

Pressure

( kg/cm2 )

7.0 7.3 7.8 8.3 9.2 10.1

5.2 MSH-07HRN1

Cooling mode Outdoor temperature (Dry bulb temp)

Indoor

Conditions

Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D

15ºC W

Pressure

( kg/cm2 )

6.2 6.8 7.2 8.0 8.5 9.5

24ºC D

17ºC W

Pressure

( kg/cm

2

)

6.3 6.5 7.5 8.0 8.7 9.5

27ºC D

19ºC W

Pressure

( kg/cm2 )

6.1 6.9 7.7 8.2 9.1 10.0

32ºC D

23ºC W

Pressure

( kg/cm2 )

7.0 7.3 7.8 8.3 9.2 10.1

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/cm2 )

24.0 23.0 21.5 21.0 20..5 /

18ºC

Pressure

( kg/cm2 )

24.6 23.5 23.0 22.6 20.8 /

20ºC

Pressure

( kg/cm2 )

25.0 23.8 24.0 23.0 21.0 /

22ºC

Pressure

( kg/cm2 )

25.3 24.6 24.5 23.8 21.7 /

251

5.3 MSH-09CRN1

Cooling mode Outdoor temperature (Dry bulb temp)

Indoor Conditions

Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D

15ºC W

Pressure

( kg/cm2 )

7.8 8.1 8.4 9.0 9.3 10.0

24ºC D

17ºC W

Pressure

( kg/cm2 )

7.9 8.2 8.7 9.0 9.5 10.1

27ºC D

19ºC W

Pressure

( kg/cm2 )

8.0 8.5 9.2 9.9 10.2 10.8

32ºC D

23ºC W

Pressure

( kg/cm2 )

8.8 9.1 9.2 10.0 10.5 11.2

5.4 MSH-09HRN1

Cooling mode Outdoor temperature (Dry bulb temp)

Indoor Conditions

Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D

15ºC W

Pressure

( kg/cm2 )

7.8 8.1 8.4 9.0 9.3 10.0

24ºC D

17ºC W

Pressure

( kg/cm2 )

7.9 8.2 8.7 9.0 9.5 10.1

27ºC D

19ºC W

Pressure

( kg/cm2 )

8.0 8.5 9.2 9.9 10.2 10.8

32ºC D

23ºC W

Pressure

( kg/cm2 )

8.8 9.1 9.2 10.0 10.5 11.2

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/cm2 )

26.5 25.0 22.0 21.5 20.5 /

18ºC

Pressure

(

kg/cm2 )

27.0 26.0 23.5 22.5 20.8 /

20ºC

Pressure

(

kg/cm2 )

27.5 26.5 25.0 23.0 21.0 /

22ºC

Pressure

2

28.5 27.0 25.5 23.9 21.5 /

252

5.5 MSH-12CRN1

Cooling mode

Outdoor temperature (Dry bulb temp)

Indoor Conditions

Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D

15ºC W

Pressure

( kg/cm

2

)

8.4 8.5 8.8 8.9 9.4 9.9

24ºC D

17ºC W

Pressure

( kg/cm

2

)

8.6 8.8 9.2 9.4 10.0 10.4

27ºC D

19ºC W

Pressure

( kg/cm

2

)

8.8 9.2 9.4 9.8 10.3 10.9

32ºC D

23ºC W

Pressure

( kg/cm

2

)

9.2 9.6 9.9 10.4 10.8 11.2

5.6 MSH-12HRN1

Cooling mode Outdoor temperature (Dry bulb temp)

Indoor Conditions

Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D

15ºC W

Pressure

( kg/cm

2

)

8.4 8.5 8.8 8.9 9.4 9.9

24ºC D

17ºC W

Pressure

( kg/cm

2

)

8.6 8.8 9.2 9.4 10.0 10.4

27ºC D

19ºC W

Pressure

( kg/cm

2

)

8.8 9.2 9.4 9.8 10.3 10.9

32ºC D

23ºC W

Pressure

( kg/cm2 )

9.2 9.6 9.9 10.4 10.8 11.2

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/cm2 )

27.4 25.9 22.2 21.4 20.0 /

18ºC

Pressure

(

kg/cm2 )

29.8 27.2 23.8 22.0 21.1 /

20ºC

Pressure

(

kg/cm2 )

30.2 29.1 24.2 23.6 22.1 /

22ºC

Pressure

2

32.4 30.1 25.4 24.0 22.7 /

253

6. Capacity table

6.1 MSH-07CRN1

SUMMER OUTDOOR TEMPERATURE DRY

Indoor

Conditions

25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

Total capacity kW 2.06 1.95 1.75 1.51 1.58 1.41

Sensitive capacity kW 1.52 1.37 1.39 1.32 1.19 1.07

21ºC D

15ºC W

Input kW. 0.53 0.58 0.62 0.63 0.78 0.80

Total capacity kW 2.14 2.05 1.96 1.72 1.73 1.52

Sensitive capacity kW 1.61 1.46 1.45 1.54 1.23 1.15

24ºC D

17ºC W

Input kW. 0.60 0.60 0.66 0.65 0.78 0.83

Total capacity kW 2.31 2.24

2.10

1.90 1.73 1.67

Sensitive capacity kW 1.78 1.65

1.42

1.43 1.26 1.28

27ºC D

19ºC W

Input kW. 0.55 0.63

0.64

0.70 0.79 0.84

Total capacity kW 2.33 2.33 2.31 2.38 2.15 2.07

Sensitive capacity kW 1.83 1.67 1.65 1.64 1.57 1.53

32ºC D

23ºC W

Input kW. 0.53 0.65 0.69 0.73 0.83 0.88

6.2 MSH-07HRN1

SUMMER OUTDOOR TEMPERATURE DRY

Indoor

Conditions

25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

Total capacity kW 2.04 1.94 1.70 1.61 1.53 1.41

Sensitive capacity kW 1.52 1.41 1.39 1.32 1.19 1.07

21ºC D

15ºC W

Input kW. 0.53 0.58 0.60 0.67 0.73 0.80

Total capacity kW 2.14 2.05 1.93 1.81 1.73 1.51

Sensitive capacity kW 1.61 1.46 1.45 1.54 1.23 1.15

24ºC D

17ºC W

Input kW. 0.54 0.60 0.62 0.70 0.74 0.82

Total capacity kW 2.31 2.24

2.05

1.95 1.70 1.65

Sensitive capacity kW 1.78 1.65

1.54

1.43 1.26 1.28

27ºC D

19ºC W

Input kW. 0.57 0.62

0.64

0.71 0.75 0.83

Total capacity kW 2.33 2.36 2.31 2.25 2.15 2.03

Sensitive capacity kW 1.83 1.67 1.65 1.64 1.57 1.52

32ºC D

23ºC W

Input kW. 0.58 0.64 0.66 0.73 0.80 0.86

254

WINTER OUTDOOR CONDITIONS

Indoor

Conditions

12ºC D

11ºC W

7ºC D

6ºC W

4ºC D
3ºC W

0ºC D

-1ºC W

-4ºC D

-6ºC W

-7ºC D

-8ºC W

Capacity kW 3.01 2.73 2.47 1.76 1.65 1.58

15ºC

Input kW. 0.76 0.66 0.60 0.58 0.50 0.45

Capacity kW 2.86 2.64 2.34 1.69 1.53 1.41

18ºC

Input kW. 0.78 0.67 0.62 0.59 0.62 0.47

Capacity kW 2.77

2.49

2.28 1.62 1.59 1.33

20ºC

Input kW. 0.81

0.69

0.64 0.59 0.53 0.48

Capacity kW 2.61 2.43 2.13 1.58 1.26 1.17

22ºC

Input kW. 0.83 0.68 0.65 0.60 0.56 0.51

6.3 MSH-09CRN1

SUMMER OUTDOOR TEMPERATURE DRY

Indoor

Conditions

25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

Total capacity kW 2.42 2.37 2.23 2.03 1.87 1.75

Sensitive capacity kW 1.72 1.69 1.65 1.53 1.43 1.36

21ºC D

15ºC W

Input kW. 0.72 0.75 0.80 0.84 0.89 0.96

Total capacity kW 0.65 2.55 2.45 2.24 2.11 1.98

Sensitive capacity kW 1.83 1.73 1.70 1.63 1.63 1.57

24ºC D

17ºC W

Input kW. 0.70 0.76 0.84 0.88 0.92 1.01

Total capacity kW 2.89 2.80

2.66

2.46 2.25 2.03

Sensitive capacity kW 1.95 1.91

1.83

1.78 1.66 1.63

27ºC D

19ºC W

Input kW. 0.65 0.78

0.82

0.91 0.95 1.02

Total capacity kW 3.01 2.98 2.92 2.83 2.69 2.45

Sensitive capacity kW 2.05 1.88 1.96 1.87 1.87 1.85

32ºC D

23ºC W

Input kW. 0.64 0.80 0.88 0.98 1.03 1.10

255

6.4 MSH-09HRN1

SUMMER OUTDOOR TEMPERATURE DRY

Indoor

Conditions

25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

Total capacity kW 2.42 2.41 2.24 2.03 1.87 1.75

Sensitive capacity kW 1.72 1.69 1.65 1.53 1.43 1.36

21ºC D

15ºC W

Input kW. 0.72 0.75 0.80 0.84 0.89 0.97

Total capacity kW 0.65 2.55 2.45 2.24 2.11 1.98

Sensitive capacity kW 1.83 1.73 1.70 1.63 1.63 1.57

24ºC D

17ºC W

Input kW. 0.68 0.76 0.81 0.88 0.93 1.02

Total capacity kW 2.89 2.80

2.63

2.45 2.23 2.05

Sensitive capacity kW 1.99 1.95

1.81

1.78 1.66 1.63

27ºC D

19ºC W

Input kW. 0.65 0.78

0.82

0.92 0.96 1.03

Total capacity kW 3.03 2.98 2.92 2.83 2.69 2.46

Sensitive capacity kW 2.05 1.88 1.96 1.87 1.87 1.85

32ºC D

23ºC W

Input kW. 0.65 0.80 0.86 0.95 0.99 1.08

WINTER OUTDOOR CONDITIONS

Indoor

Conditions

12ºC D

11ºC W

7ºC D

6ºC W

4ºC D
3ºC W

0ºC D

-1ºC W

-4ºC D

-6ºC W

-7ºC D

-8ºC W

Capacity kW 3.75 3.38 3.02 1.97 1.59 1.52

15ºC

Input kW. 0.97 0.84 0.73 0.65 0.62 0.63

Capacity kW 3.52 3.26 2.94 1.84 1.60 1.49

18ºC

Input kW. 0.98 0.86 0.78 0.70 0.65 0.68

Capacity kW 3.45

3.22

2.85 1.82 1.56 1.50

20ºC

Input kW. 1.02

0.89

0.80 0.74 0.68 0.67

Capacity kW 3.18 3.13 2.72 1.73 1.58 1.42

22ºC

Input kW. 1.06 0.93 0.82 0.77 0.71 0.65

256

6.5 MSH-12CRN1

SUMMER OUTDOOR TEMPERATURE DRY

Indoor

Conditions

25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

Total capacity kW 3304 3198 3921 2856 2787 2684

Sensitive capacity kW 2607 2497 2411 2304 2242 2111

21ºC D

15ºC W

Input kW. 907 1006 1096 1184 1259 1457

Total capacity kW 3683 3511 3339 3166 3066 2960

Sensitive capacity kW 2938 2790 2745 2580 2470 2359

24ºC D

17ºC W

Input kW. 926 1035 1127 1230 1278 1380

Total capacity kW 3896 3718

3646

3387 3235 3232

Sensitive capacity kW 3076 2938

2856

2690 2580 2470

27ºC D

19ºC W

Input kW. 943 1058

1120

1265 1322 1437

Total capacity kW 4199 4009 3850 3614 3541 3370

Sensitive capacity kW 3098 2990 2745 2607 2552

32ºC D

23ºC W

Input kW. 977 1090 1190 1310 1368 1495

2900

6.6 MSH-12HRN1

SUMMER OUTDOOR TEMPERATURE DRY

Indoor

Conditions

25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

Total capacity kW 3276 3187 3105 2821 2746 2621

Sensitive capacity kW 2567 2457 2413 2287 2210 2087

21ºC D

15ºC W

Input kW. 890 1010 1082 1188 1243 1337

Total capacity kW 3663 3503 3315 3148 3076 2932

Sensitive capacity kW 2918 2766 2725 2557 2453 2334

24ºC D

17ºC W

Input kW. 915 1033 1121 1228 1278 1367

Total capacity kW 3860 3700

3626

3371 3215 3125

Sensitive capacity kW 3039 2913

2832

2645 2567 2419

27ºC D

19ºC W

Input kW. 944 1048

1120

1253 1312 1426

Total capacity kW 4215 4100 3845 3601 3501 3313

Sensitive capacity kW 3120 2939 2891 2715 2589 2503

32ºC D

23ºC W

Input kW. 969 1088 1189 1302 1349 1455

257

WINTER OUTDOOR CONDITIONS

Indoor

Conditions

12ºC D

11ºC W

7ºC D

6ºC W

4ºC D
3ºC W

0ºC D

-1ºC W

-4ºC D

-6ºC W

-7ºC D

-8ºC W

Capacity kW 4446 4264 4132 3838 3335 305

15ºC

Input kW. 1141 1106 1059 1035 895 812

Capacity kW 4380 4248 3954 3761 3258 2948

18ºC

Input kW. 1188 1153 1142 1082 953 918

Capacity kW 4261

4153

3877 3683 3189 2871

20ºC

Input kW. 1224

1180

1129 1082 976 941

Capacity kW 4106 3989 3761 3567 3045 2876

22ºC

Input kW. 1259 1212 1153 1106 1000 836

258

7. Schematic diagram and wiring diagram

7.1 Schematic diagram

1 2 3 4 5 6 78

A

B

C

D

8

7654321

D

C

B

A

C1
104

Vin

1

GND

2

Vout

3

IC3 78 05

E3

470uF/16V

E1

2200uF/25V

C4
104

D4

D3

D2

D1

Vin

1

GND

2

Vout

3

IC1 781 2

E2

1000uF/16V

C3
104

X1

4M

R7

1M

A0

1

A1

2

A2

3

GND

4

SDA

5

SCL

6

WC

7

VCC

8

IC2

24C04

C2

104

R2
10K

R1
10K

C5
104

R412K

1

2

3

IC5 KIA7 042

BUZ1
BUZZER1

R5
1K

R27
2K

Q3
9014

E4

10uF/16V

R8

8.1K/1%

C6

104

R10 2K

D6
IN4148

D5
IN4148

1

2

CN2

T1_roo m

E5
10uF/16V

R9

8.1K/1%

C7
104

R11 2K

D8

IN41 48

D7
IN41 48

1

2

CN3

T2_I.p ipe

CT1
0057h

D10
1N4148

R14

1.4K/1%

R6

1K/1%

R13
16K

E6

10uF/16V

D9
1N4148

R12 2K

C8

104

Q2

9014

R15
12K

C9
104

D11 1N4148

D12 1N4148

R16 12K

R17
12K

R18 10K

E7

10uF/16V

C10

102

R19 150

R20 1K

C11

104

R215.1K

D13
IN41 48

C12
103

+5V

1

2

3

CN4

FAN_BACK

REC

V

GND

REC1

RECEIVER_V

JR7
10K

C13
104

R23 2K

C14

1.2uF/450V

IC6 PC8 17

T1

T2

G

TR1

BT131

L2

?

C15
333

R242K

R26
1K

E9
470uF/25V

R28
11K/2W

Z1

12V

D15

IN4 007

R29
11K/2W

R25 51/1W

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

IC7

UJN2003

C19
104

1

2

3

4

5

CN12

SWING

RY2
RELAY-SPST

D21

IN4148

R33
2K

Q5
9014

RY3
RELAY-SPST

D22

IN4 148

R34
2K

Q6
9014

RY4
RELAY-SPST

D23

IN4148

R35
2K

Q7
9014

RY5
RELAY-SPST

D24

IN4148

C20
333

R36
51/1W

RY6
COMP

C21
333

R37
51/1W

1

CN14

N

SE1

3.15A/250V

FUSE2

10A

1

CN11

N

1

CN10

HEAT_L

1

CN9

HEAT_N

1

2

CN13

ZR1

10D471K

C23

0.1uF/275VAC

1

2

CN15

TRANS_IN

SW1

t

PTC
82RM

R39

5.1K

C22
104

R38
10K

Onl y For Hea t Pump

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

IC8

74HC164

R60
10K

R59

10K

C24

104

Q8

9012

Q9

9012

Q10

9012

R44

330

R45 330

R46 330

R47 330

R48 330

R49 330

R54 330

R55 330

R41
2K

R42
2K

R43
2K

LED6

自动

LED7

化霜

LED8

定时

+5V

a

b

c

d

e

f

g

h

com1

com2

DIS1
WT4021BG

LED9

运行灯

1

2

3

4

5

CN6

FAN_IN

C25
104

IN40 07* 4

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

AN10

18

AN11

19

AN12

20

AN13

21

AN14

22

AN15

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

Vpp/ IC

37

XT2

38

XT1

39

RESET

40

X2

41

X1

42

IC4

UPD789 166

C26
104

JR1
10K

JR3 10K

JR2

10K

JR5 10K

JR4

10K

C16
102

C17
102

JR6
10K

JR8
10K

JR9
10K

R41
10K

R41
10K

R41
10K

+5V

+5V

R61
2K

Q11

9014

R62
1K

IC9

PC817

SW2

R63

5.1K

Q12

9014

1

2

CN16

C23
104

E10

2200uF/25V

D19

D18

D17

D16

Vin

1

GND

2

Vout

3

IC10 7812

E11

1000uF/16V

C24
104

IN40 07* 4

1

2

3

4

CN1

TRANS

+5V+12V-a

+5V

+5V

+12V

+5V

+5V

+5V

+5V

+5V

+12V-a

+5V

+12V-a

+12V-a

+12V-a

+12V-a

+12V-a

+12V-a

+12V-a

+5V

+5V

+5V

+5V

+12V-a

+5V

+5V

+5V

+5V

+12V-a +12V-b

GNDB

+12V-b

+12V-b

GNDB

SDA

SDA

SCL

SCL

RST

RST

BUZ

BUZ

T1_roo m

T1_roo m

T2_I. pipe

T2_I. pipe

Current

Curre nt

ZERO

ZERO

A

B

B

A

REC

REC

FANSP_FEEDBAC K

FANSP_FEEDBAC K

AUTO_SELECT

AUTO_SELECT

L1

N

FAN_IN '

FAN_IN

STEP_I2

STEP_I1

STEP_I3

STEP_I4

STEP_I2

STEP_I1

STEP_I3
STEP_I4

FAN_IN '

FAN_IN

BUZ '

BUZ '

COMP

COMP

COMP '

COMP '

VALVE

VALVE

FAN_OUT

FAN_OUT

HEAT

HEAT

L(POWER_IN PORT)

LOAD_COMP

N

FU

L1

L1

FRESH

LOAD_VALVE

LOAD_FAN OUT

LOAD_HEAT L

LOAD_HEAT N

SW_TEST

SW_TEST

COM1

COM2

COM3SEG1

SEG2

SEG3

SEG4

SEG3

SEG4

COM1 COM2 COM3

COM1

COM2

COM3SEG1

SEG2

SEG3

SEG4

SCL
SDA

T1

T2
CURRENT

AUTO_SELECT SW

STEP_I1

STEP_I2

STEP_I3
STEP_I4

FAN_IN
BUZ

COMP

VALVE

FAN_OUT

ZERO

FANSP

REC

HEAT

FRESH

RST

X2

X1

FRESH

C
D

259

7.2 Wiring diagram

7.2.1 Cooling only

7.2.1.1 MSH-07CRN1, MSH-09CRN1

12

34

5

1

2345

21
2

1

21
2

1

351
35

1

32

1

321

31

1

14

DISPLAY BOARD

CN 6 CN4 CN12 CN2

CN 3

CN11

RE D

BLUE

BL ACK

CN1

TR ANSF ORME R

CN5

P

O

WER

S

U

P

P

L

Y

IND

O

O

R

M

O

T

O

R

S

T

EP

MOTOR

ROOM TEMPERATURE

SENSOR

PIPE TEMPERATURE

SENSOR

JX1

INDOOR UNIT
TO OUTDOOR UNIT

Y/G

1

2(N)

34

BROWN

Y/G

COM

P

RESSOR

REL

A

Y

CN15

8 7 6 5 4 3 21

4

CN7 CN16

21
2

1

21
21

SW2

WAT ER SWITCH

１　２（Ｎ）　

COMPRESSOR
CAPACITOR

RE

Ｄ

OＵTＤOOR

Ｕ

Ｎ

IT

OＶERＬOAＤ

REＬA

Ｙ

Y＆G

COMPRESSOR

S

C

ＢＬＵ

E

R

Ｂ

ＬACＫ

RE

Ｄ

Ｂ

ＬACＫ

INDOOR UNIT

FAN
CAPACITOR

RED

Y＆G

FAN

MOTOR

Y＆G

Ｂ

Ｌ

UE

Ｂ

ＬACＫ

RED

260

7.2.1.2 MSH-12CRN1

12

34

5

1

2345

21
2

1

21
2

1

351
35

1

32

1

321

31

1

14

DISPLAY BOARD

CN 6

CN4

CN12 CN2

CN 3

CN11

RE D

BLUE

BL ACK

CN1

TR ANSF ORME R

CN5

PO

WER

SU

PP LY

INDOOR MOTOR

STEP MOTOR

ROOM TEMPERATURE

SENSOR

PIPE TEMPERATURE

SENSOR

JX1

INDOOR UNIT
TO OUTDOOR UNIT

Y/G

1

2(N)

34

BROWN

Y/G

COMPRESSOR RELAY

CN15

8 7 6 5 4 3 21

4

CN7 CN16

21
2

1

21
21

SW2

WAT ER SWITCH

261

7.2.2 Heating/cooling

7.2.2.1 MSH-07HRN1, MSH-09HRN1

12

34

5

1

2345

21
2

1

21
2

1

351
35

1

32

1

321

2

1

14

DISPLAY BOARD

CN 6

CN4

CN12 CN2

CN 3

CN11

RE D

BLUE

BL ACK

CN1

TR ANSF ORME R

CN5

PO

WER

SU

PP LY

INDOOR MOTOR

STEP MOTOR

ROOM TEMPERATURE

SENSOR

PIPE TEMPERATURE

SENSOR

JX1

INDOOR UNIT
TO OUTDOOR UNIT

Y/G

1

2(N)

34

BROWN

Y/G

COMPRESSOR RELAY

CN15

8 7 6 5 4 3 21

4

CN7 CN16

21
2

1

21
21

SW2

WAT ER SWITCH

CN13

1 21

121

1

262

7.2.2.2 MSH-12HRN1

12

34

5

1

2345

21
2

1

21
2

1

351
35

1

32

1

321

2

1

14

DISPLAY BOARD

CN 6

CN4

CN12 CN2

CN 3

CN11

RE D

BLUE

BL ACK

CN1

TR ANSF ORME R

CN5

PO

WER

SU

PP LY

INDOOR MOTOR

STEP MOTOR

ROOM TEMPERATURE

SENSOR

PIPE TEMPERATURE

SENSOR

JX1

INDOOR UNIT
TO OUTDOOR UNIT

Y/G

1

2(N)

34

BROWN

Y/G

COMPRESSOR RELAY

CN15

8 7 6 5 4 3 21

4

CN7 CN16

21
2

1

21
21

SW2

WAT ER SWITCH

CN13

1 21

121

1

263

8 Electronic function

8.1 Electric Control working environment

8.1.1 input voltage: 175~253V

8.1.2 Input power frequency:50Hz

8.1.3 Ambient temperature: -7°C~+43°C

8.1.4 Indoor fan normal working amp is less than 1A,

8.1.5 Outdoor fan. Normal working amp is less than 1.5A

8.1.6 Four-way valve normal working amp is less than 1A.

8.1.7 Swing motor: DC12V.

8.1.8 Compressor: single-phase power supply. Its normal working amp is less than 15A

8.2 Proper symbols and their meanings:

TA: Indoor ambient temperature

TE: Indoor evaporator temperature

TS: Setting temperature through the remote controller

I

3sec

: Self-protection amp of compressor, continue three seconds until turns off the compressor.

I

5MIN

: Self-protection amp of compressor, continue five minutes until turns off the compressor.

I

FAN

: Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower wind.

I

RESTORE

: Amp self-protection return value

TH

DEFROST

: High wind, defrosting temperature difference

TM

DEFROST

: Middle wind, defrosting temperature difference

TL

DEFROST

: Low wind, defrosting temperature difference

TE1: Anti-cold wind, from Fan Off to Breeze temperature

TE2: Anti-cold wind, from Breeze to Setting Fan Speed temperature

TE3: Anti-cold wind, from Setting Fan Speed to Breeze temperature

TE4: Anti-cold wind, from Breeze to Fan Off temperature

TE5: Evaporator low temperature protection entering temperature

TE6: Evaporator low temperature protection restoring temperature

TE7: Evaporator high temperature protection, compressor off temperature

TE8: Evaporator high temperature protection, fan off temperature

TE9: Evaporator high temperature protection, restoring temperature

8.3 Functions

Remote receiving

Testing and forced running

Position set for indoor unit wind vane

LED displaying and alarm

On or off Timer

Protection for the compressor

Current protection

High temperature protection of indoor heat exchanger at heating mode

Auto defrosting and heating recovery at heating mode

Anti cold air at heating mode

Anti frozen at cooling mode

264

8.4 Protection

8.4.1 3 minutes delay at restart for compressor.

8.4.2 Sensor protection at open circuit and breaking disconnection

8.4.3 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 returns to

normal operation automatically.

8.4.4 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 returns to normal operation automatically.

8.4.5 The current protection of the compressor

Condition Indoor fan Compressor Outdoor fan Remark

I< I

RESTORE

On On On

On On Off Heating mode I

RESTORE

<I< I

FAN

Low speed On On Cooling mode

I

FAN

<I<I

5MIN

Off Off After 5 Minutes

Current up

I

5MIN

<I< I

3SEC

Off Off After 3 Seconds

I

5MIN

<I< I

3SEC

Off Off After 3 Seconds

I

FAN

<I<I

5MIN

Off Off After 5 Minutes

On On Off Heating mode I

RESTORE

<I< I

FAN

Low speed On On Cooling mode

Current down

I< I

RESTORE

On On On

If compressor turns off for continuously 4 times due to current protection in 5 minutes from

Compressor On, the unit stops and LED displays failure information and can’t returns to normal

operation automatically.

8.5 Fan-only mode

Fan speed is high/mid/low/ Auto

8.6 Cooling mode

The 4-way valve is closed at cooling mode.

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

Auto fan at cooling mode:

Condition

T=Indoor Temp.-Setting Temp.

Indoor fan speed

T<4℃ Low
4℃<T<5℃ Med.

Room temp. up

T>5℃ High
T> 4℃ High
1<T<℃ 4℃ Med.

Room temp. down

T<1℃ Low

265

Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. )

Condition

Temp. Time

Compressor Outdoor fan

T> TE6 On On

Evaporator Temp. up

T< TE6 >5 Minutes Off Off

T> TE5 On On

Evaporator Temp. down

T< TE5 >5 Minutes Off Off

8.7 Dehumidifying mode

8.7.1 The 4-way valve is off in dehumidifying mode

8.7.2 Compressor and Indoor Fan actions in dehumidifying mode

NO Conditions Indoor Fan Compressor and Outdoor Fan

1 TA ≥ TS+2

LOW

BREEZE

ON 6minutes

OFF 4minutes

2 TS ≤TA< TS +2

LOW

BREEZE

ON 5minutes

OFF 5minutes

3 TA < TS

LOW

BREEZE

ON 4minutes

OFF 6minutes

Repeat on and off cycle.

266

8.7.3 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 13℃.

8.7.4 At dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same as that

of cooling mode.

8.7.5 At dehumidifying mode, the action of fans of indoor is the same as that of air-only mode.

8.8 Heating mode

8.8.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode. 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.

8.8.2 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.

8.8.3 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

8.8.4 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

function prevails.

Anti-cold wind control function at heating mode

Condition

T= Indoor exchanger temp.

Indoor fan speed

T<TE1 Off

TE1<T<TE2 Breeze

Indoor exchanger temp. up

T>TE2 Setting fan speed

T> TE3 Setting fan speed

TE3<T<TE4 Breeze

Indoor exchanger temp. down

T<TE4 Off

8.8.5 Auto wind at heating mode

Condition

T=Indoor Temp.-Setting Temp.

Indoor fan speed

T<2℃ High Room temp. up

T>2℃ Med.

T> 0℃ Med. Room temp. down

T<0℃ High

267

8.8.6 Indoor evaporator high-temperature protection at heating mode

Condition

T= Indoor exchanger temp.

Compressor Outdoor fan

T<TE8 On On

TE8<T<TE7 On Off

Indoor exchanger temp. up

T>TE7 Off Off

T>TE9 Off Off Indoor exchanger temp. down

T<TE9 On On

8.8.7. The louver opens to Standard Angle ANGLHEAT when power is on for the first time

8.9 Defrosting operation (Available for heating only).

8.9.1 Defrosting condition: Defrosting starts when either of the following ①&②:

① A and B are satisfied:

A: The compressor keeps running for 40 minutes or more.

B: The temperature difference of evaporator and room temperature meets one of the following:

℃

Temp. of evaporator---room temp.

Fan speed is high ≤TH

DEFROST

Fan speed is mid ≤TM

DEFROST

Fan speed is low ≤TL

DEFROST

Breeze Meet only if it is Breeze

② Calculate from the end of latest defrost, evaporator high temp. protection only closes outdoor fan

with the compressor still running. Add up to 90 minutes.

8.9.2 Defrosting time

If the temp. difference condition ① is satisfied for less than 40 minutes, this can be regarded as

severe frosting. The defrosting time is 10 minutes.

If the temp. difference condition ② is satisfied for more than 40 minutes, the defrosting time is 6

minutes.

If the temp. difference condition ① is satisfied out of 40 minutes, generally the defrosting time is 6

minutes, after three continuous 6-minute defrost, the fourth should be 10 minutes defrost. The

circulation is as following:

→7.5-minute defrost → 7.5-minute defrost→7.5-minute defrost→10-minute defrost→

8.9.3 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 7.5 or 10 minutes.

B. The compressor current has reached to I

DEFROST

or above, I

DEROST

differs in different models.

268

8.9.4 Defrosting Actions:

Defrost 10or 6minutes

45S 25S
Compressor

4-way Valve 23S
40S
Outdoor Fan

Indoor Fan

10S

8.10 Automatic operation mode

8.10.1 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)

8.10.2 The indoor fan blows automatically in corresponding selected mode.

8.10.3 The motion of indoor fan’s blade should accord with the selected operation mode.

8.10.4 One mode should be carried out for at least 15 minutes once selected. If the compressor cannot

start for 15 minutes, reselect the operation mode according to the room temp. and set temp., or

reselect when the set temp. varies.

8.11 Forced cooling function

8.11.1 Select forced cooling function with the forced cooling button or the switch.

8.11.2 The compressor is unconditionally turned on, after 30 minutes cooling operation whose fan mode is

set as low, the A/C operates at the DRY mode with a set temp. of 24℃.

8.11.3 All protections of remote control cooling are available at forced cooling operation.

8.12 Forced Auto function

Select forced auto function with the forced auto button or the switch.

In forced auto status the A/C operates at remote control mode with a set temp. of 24℃.

8.13 Timer Function

8.14 Economic Running

8.14.1 The economic running function is available at cooling, heating or auto mode.

8.14.2 Cooling:

The set temperature rise 1℃ per hour. Two hours later, the set temperature will maintain as a

269

constant and the fan speed is kept at low speed.

8.14.3 Heating:

The set temperature decrease 1℃ per hour. Two hours later, the set temperature will maintain as a

constant and the air circulation is kept at low speed (Cold air proof function takes precedence over

all).

8.14.4 Auto:

The economic running function operates in accordance with selected running mode by auto mode.

8.15 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.

270

8.16 Models and Parameters

Model MSH-07CRN2 MSH-07HRN2 MSH-09CRN2 MSH-09HRN2 MSH-12CRN2 MSH-12HRN2

I3SEC 7.5A 7.5A 10.0

A

10.0

A

12.0A 12.0

A

I5MIN 6.2A 6.2A 7.5

A

7.5

A

8.5A 8.5

A

IFAN 5.2A 5.2A 5.5

A

5.5

A

7.5A 7.5

A

IRESTORE 4.2A 4.2A 4.5

A

4.5

A

6.5A 6.5

A

IDEFROST 3.2A 3.5

A

5.0

A

TE1 28℃ 28℃ 34℃

TE2 32℃ 32℃ 37℃

TE3 30℃ 30℃ 33℃

TE4 26℃ 26℃ 22℃

TE5 4℃ 4℃ 4℃ 4℃ 3℃ 3℃

TE6 10℃ 10℃ 10℃ 10℃ 10℃ 10℃

TE7 60℃ 60℃ 63℃

TE8 53℃ 53℃ 53℃

TE9 50℃ 50℃ 50℃

ANGLCOOL 200° 200° 200° 200° 155° 155°

ANGLHEAT 0° 0° 10°

ANGLOFF 124° 124° 124° 124° 124° 124°

TH

17°C 17°C 20°C

TM

18°C 18°C 23°C

TL

19°C 19°C 26°C

271

9.Troubleshooting

9.1 Display board

1

2

3

4

5

6

Infrared Signal
Recei ver

1: AUTO indicator

2: TIMER indicator

3: PRE.-DEF. Indicator

4: OPERATION indicator

5: SLEEP indicator

9.2 For all heat pump model

Failure phenomenon Operation lamp Timer lamp

Indoor fan speed has been out of control for over 1 minute ☆ X
Indoor room temp. or evaporator sensor is open circuit or short circuit ☆ On
Over current protection of the compressor occurs 4 times X ☆
EEROM error On ☆
No over-zero signal ☆ ☆

r Extinguish

☆ Flash at 5Hz

272

☆

9.3 Diagnostic Chart

9.3.1 After energizing, no indicator is lighted and the air conditioner can’t be operated.

A

fter energizing, the air conditione

r

can’t be operated

Yes

Yes No

No Yes

Yes

No

9.3.2 Resetting phenomenon often occurs during operation. (That is automatically entering to the status when
power is on.)

The reason is that the instantaneous voltage of main chip is less than 4.5V. Check according to the following procedure:

Yes

No Yes

No

Check if AC220V power supply outputs to Indoor PCB.

Check if AC220V exists at the primary coil of transformer.

Indoor PCB is defective

Check if AC14.5V exists at the secondary coil of transformer.

Take off the secondary plug of transformer, and then check i

f

A

C14.5V exists at the secondary coil of transformer.

The transformer is defective. Indoor PCB is defective

A

fter changing indoor fan motor, check if the failure releases.

Indoor PCB is defective

A

fter changing Indoor PCB, check if the failure releases.

Power supply circuit has problems.

Resetting phenomenon often occurs during operation.

273

9.3.3 Failure phenomenon

Failure phenomenon Operation lamp Timer lamp

Indoor fan speed has been out of control for over 1 minute ☆ X
Indoor room temp. or evaporator sensor is open circuit or short circuit ☆ On
Over current protection of the compressor occurs 4 times X ☆
EEROM error On ☆
No over-zero signal ☆ ☆

r Extinguish

☆ Flash at 5Hz

9.3.3.1 Operation lamp flashes and Timer lamp off.

Is connector connection good?

Is voltage being applied to the fan motor?

Fan motor is defective

Repair the connector

No Yes

Yes No

Indoor PCB is defective

9.3.3.2 Operation lamp flashes and Timer lamp on.

Is connection to connector good?

Replace the sensor

No

Yes

Repair connector

9.3.3.3 Operation lamp off and Timer lamp flashes

No Yes

Yes No

Indoor PCB is defective

Power supply fault Outdoor unit fault (such as the compressor)

Yes

A

fter changing the main control board, check if the failure releases.

The voltage of power supply is too low (less than 187V)?

Operation lamp off and Timer lamp flashes

9.3.3.4 Operation lamp on and Timer lamp flashes

EEROM error, indoor PCB is defective.

9.3.3.5 Operation lamp flashes, Timer lamp flashes .

This is alarm signal when the main chip can’t detect over-zero signal. When such failure occurs, the main

control board must have fault.

274

275

10. 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

228

Multi ECO SERIES

1. Features 229

2. Specification 230

3. Dimensions 231

4. Refrigeration cycle diagram 232

5. Operation limits 233

6. Wiring diagram 234

7. Troubleshooting 236

8. Electronic function 238

229

1.Features

1.1 Compact design

1.2 High efficiency and quiet operation

230

2.Specification

M

o

de

l M

S3G-30

HRN2 M

S3G

-27HRN2

Power supply Ph-V-Hz 1Ph,220-240V~,50Hz 1Ph,220-240V~,50Hz

Capacity Btu/h 9000x2+12000 9000x2+10000
Input W 1800+1300 1800+1300
Rated current A 8.2+5.8 8.2+5.8

Cooling

EER Btu/w.h 10+9.2 10+9.0
Capacity Btu/h 10000x2+13000 10000x2+13000
Input W 1750+1250 1750+1250
Rated current A 8.0+5.6 8.0+5.6

Heating

COP Btu/w.h 3.4+3.0 3.4+2.8
Moisture Removal L/h 1.0x2 +1.2 1.0x2 +1.2
Max. input consumption W 2200+1800 2200+1800
Max. current A 10.0 +8.2 10.0 +8.2
Starting current A 40+30 40+30

Model PG295X2CS-4KU1; PG295X2CS-4KU1;

Type Rotary /GD Toshiba Rotary / GD Toshiba

Capacity Btu/h 18080; 13650 18080; 13650

Input W 1760; 1310 1760; 1310

Rated A 8.5; 6.1 8.5; 6.1

Thermal protector Internal Internal

Capacitor uF 35uF/440VAC; 35uF/440VAC;

Compressor

Refri

g

erant oil ml 750; 480 750; 480
Model RPG13H RPG13H
Input W 36.5 36.5
Capacitor uF 1.2µF/450V 1.2µF/450V

Indoor fan motor

S

p

eed(hi/mi/lo) r/min 1350 1350
Indoor air flow (Hi/Mi/Lo) m3/h 550 550
Indoor noise level (Hi/Mi/Lo) dB(A

)

38/35/31 38/35/31
Dimension mm 750×250×188 750×250×188
Packing mm 830X336X280 830X336X280

Indoor unit

Net/Gross wei

g

ht K

g

8.5/10 8.5/10
Model YDK50-4G1 YDK50-4G1
Input W 107Wx2 107Wx2
Capacitor uF 4uFx2 4uFx2

Outdoor fan motor

S

p

eed r/min 1150 1150
Outdoor air flow m3/h 1450x2 1450x2
Outdoor noise level dB(A

)

57 57
Dimension(W*H*D) mm 860X830X330
Packing (W*H*D) mm 983X915X425

Outdoor unit

Net/Gross wei

g

ht K

g81/

88

Refrigerant type

g

R407C 1470+820 R407C 1470+820

Design pressure MPa 2.6 2.6

Liquid side/ Gas mm Ф6.35/Ф9.53(A
Max. refrigerant m 15(each unit

)

15(each unit)

Refrigerant piping

Max. difference in m 5

(

each unit

)

5 (each unit)
Operation temp ℃ 17~30 17~30
Ambient temp ℃ -7~45 -7~45
Application area m2

(

14-21)x2,18-26

(

14-21)x2,18-26

231

3.Dimensions

3.1 Indoor unit

3.2 Outdoor unit

232

4.Refrigeration cycle diagram

“1 drive 3 system” is made up of one “1 drive 1 system” and one “1 drive 2 system”.

PMV1

1 drive 2 system

SV1：Primary four-way valve SV2：Secondary four-way valve PMV1，PMV2：Electronic expansive valve
T1，T2：Indoor pipe temperature sensor

condenser

four-way valve

evaporator

compressor

1 drive 1 system

PMV2

SV2

SV1

2＃

1＃ T2

T1

refrigeration distributor

Compressor

233

5.Operation limits

5.1Cooling operation

Outdoor unit air temp. DB℃
45

40

35

30

25

20

0 25 50

Indoor air temp.

DB℃

Note : The chart is the result from the continuous operation under constant air temperature
conditions. However, excludes the initial pull-down stage.

5.2Heating operation

Indoor air temp. DB℃

30

25

20

15

10

5

-5 5 15 25

Outdoor unit air temp.

DB℃

Note : The chart is the result from the continuous operation under constant air
temperature conditions. However, excludes the initial pull-down stage.

COOLING

234

6.Wiring diagram

Indoor unit

Outdoor unit

235

PMV1-2

ELECTRONIC
ADJUSTMENT

TO INDOOR UNIT A1

WIRING DIAGRAM

TO INDOOR UNIT B

220V-240V～ 50Hz
OUTDOOR UNIT POWER

XT1 XT8

Y/G

TO INDOOR UNIT A2

Y/G

XT9

Y/G

XT10

A SYSTEM
LOW-PRESSURE
THROTTLE TEMPERATURE
SENSO

R

RT1 RT2

6

BLACK

OUTDOOR UNI

T

XT5

S.V1

WHITE

S

S

CAPA1

Y/G

FAN(A)

Y/G

BLUE
WHITE

WHITE

BLACK

CAPB1

COMP(A)

C

BLUE

R

BLACK

CAPA2

FAN(B)

WHITE

BLUE

Y/G

BLACK

Y/G

BLUE

COMP(B)

R C

BLACK

CAPB2

WHITE
WHITE

WHITE
WHITE

ON

BLUE

RED

BLUE

BLUE

RED

B

L

U

E

(

S

.

V

)

MAINBOARD

RY1

BLACK

KMA

BLACK

KMB

Y/G

BLUE
BLACK

RED

B

L

U

E

(

N

)

BLUE

BLACK

L N

BLUE

BLACK
RED

BLUE

XT4

BLUE

S.V3

S.V2

CN3

RY4

1 2

IC4

CN8

RED

BLUE(S.V)

BLUE(N)

B

L

A

C

K

RED

XT6

CN7

BLUE

BLACK

BLUE(N)

BLUE(S.V)

BLACK

BLUE(S.V)

RED

BLUE(N)

CN6

CN3

CN5

RED

RED

BLUE

RED

BLUE

BLACK

BLUE

CN5

LMFPQ1

CN4

CN10

CN9

CN8CN7

CN1

CN2

T2

T1

(WHITE)

BLUE

XT2

XT3

BLUE

BLUE

XS7 XP7

XS8 XP8

XS9 XP9

(RED)

(BLACK)

RT4

RT3B

RT3A

CN9

CN2

CN1

CN4

BLUE

6

CN6

XT7

RT1RT2

MIDDLE TERMINAL

RELAY

5-WAY TERMINAL

TRANSFORMER

3-WAY TERMINAL

KMA KMB

T1 T2

XP7-XP9

XS7-XS9

XT4

XT3A XT3B

XT8-XT10

XT1

XT3-XT7

220V-240V～ 50Hz

OUTDOOR COMPRESSOR
CAPACITOR

4-WAY VALVE
OUTDOOR FAN

CAPACITOR

FAN MOTOR

COMPRESSOR

WIRING DIAGRAM

6

CAP2

CAP1

S.V

FAN

PMV1

COMP

PMV

2

CODE PART

2

FUNCTION OF SWITCH IC4

EXPLANATION

1

1

3

ON

2

ON

1 2

ON

LEAVEING
FACTORY

RAPIDLY
CHECK

CHECK
ITSELF

A&B SYSTEM PIPE
TEMPERATURE SENSO

R

A&B SYSTEM ROOM
TEMPERATURE SENSO

R

CONNECTORS
CONNECTORS

236

7.Troubleshooting

7.1 Indoor unit

Failure phenomenon Operation lamp Timer lamp
Indoor fan speed has been out of control for over 1 minute ☆ X
Indoor room temp. sensor or evaporator temp. sensor is open circuit
or short circuit

☆ on

EEROM error on ☆
Over current protection of the compressor occurs 4 times in 1h X ☆

r Extinguish

☆ Flash at 5Hz

7.2 Outdoor unit (on mainboard)

Failure phenomenon LED1 LED2 LED3 Sensor in outdoor unit

Condenser high temperature protection ☆ ☆

RT3B or RT3A

RT3A sensor is open circuit or short circuit ☆

RT3A

RT4 sensor is open circuit or short circuit ☆

RT4

RT3B sensor is open circuit or short circuit ☆

RT3B

☆ Flash at 2Hz

Remark :

Standard by a unit working b unit working a unit and b unit working
LED1 Blinking at 0.5 Hz On Off On
LED2 Blinking at 0.5 Hz Off On On
LED3 Blinking at 0.5 Hz Off Off off

7.3 Outdoor unit (on LMFPQ1)

Standard by a or b unit working RT2 or RT1 sensor is open circuit or short circuit
LED Blinking at 0.5 Hz On Blinking at5 Hz

237

7.4 Failure and Related Causes of Remote Controller
Before requesting service or maintenance, please check the following items

Changing function can not be set

Symptom Checking Item Cause

Check if “Auto” mode is displayed When “Auto” is chosen, indoor fan will

choose “Auto” fan speed

Fan speed can not be
changed

Check if “Dehumidification” is
displayed

When dehumidification is chosen, indoor unit
automatically chooses “Auto” fan speed. Fan
speed can only be chosen under “cooling”,
“heating” and “fan” mode.

Emission signal “” does not blink
Symptom Checking item Cause
When pressing On/Off button,
remote control signal is not
emitted.

Check battery Signal can not be emitted when there is

no battery

Temperature display is dark
Symptom Checking item Cause
Temperature display is dark Check if “Fan” is chosen Under Fan mode, temperature can not be

set

Display disappears
Symptom Checking item Cause
After a while, On/Off display
disappears

Check if set time of the timer is
already finished

Because set time is reached, A/C stops

running
After a while, “Timer On” display
disappears

Check if set time of the timer is
already finished

When set time for A/C running is

reached, A/C start running automatically

and related display disappears

No sound for signal receipt
Symptom Checking item Cause
When pressing On/Off button,
A/C doesn’t give out receipt
sound

When pressing the button, make
sure that the emitter of the
remote control is directed to the
receiver of the A/C.
Check if power supply is well
connected

Direct the emitter to the receiver correctly
and press the On/Off button repeatedly
The A/C is turned off so it can not receive
signals

Button on remote control doesn’t
function

Check the remote display The button is locked

238

8 Electronic function

8.1 Electric Control working environment

8.1.1 input voltage: 175~253V

8.1.2 Input power frequency:50Hz

8.1.3 Ambient temperature: -7°C~+43°C

8.1.4 Indoor fan normal working amp is less than 1A,

8.1.5 Outdoor fan. Normal working amp is less than 1.5A

8.1.6 Four-way valve normal working amp is less than 1A.

8.1.7 Swing motor: DC12V.

8.2 Proper symbols and their meanings:

TA: Indoor ambient temperature
TE: Indoor evaporator temperature
TS: Setting temperature through the remote controller
TE1: Anti-cold wind, from Fan Off to Breeze temperature
TE2: Anti-cold wind, from Breeze to Setting Fan Speed temperature
TE3: Anti-cold wind, from Setting Fan Speed to Breeze temperature
TE4: Anti-cold wind, from Breeze to Fan Off temperature
TE5: Evaporator low temperature protection entering temperature
TE6: Evaporator low temperature protection restoring temperature
TE7: Evaporator high temperature protection, compressor off temperature
TE8: Evaporator high temperature protection, fan off temperature
TE9: Evaporator high temperature protection, restoring temperature
T3: Outdoor unit pipe sensor
T4: Outdoor temperature sensor

8.3 Systematic functions.

Remote receiving.
Testing and forced run.
Position set for indoor unit wind vane.
LED displaying and alarm.
On or off Timer.
Protection for the compressor.
High temperature protection of indoor heat exchanger under heating mode.
Auto defrosting and heating recovery under heating mode.
Anti cold air under heating mode.
Anti frozen under cooling mode.

239

8.4 Protection

8.4.1 The compressor functions protection with a delay of three minutes.

8.4.2 High temp. protection of condenser.

8.4.3 Sensor protection at open circuit and breaking disconnection

8.4.4 Temperature Fuse break protection

8.4.5 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 entire unit stops and LED displays
failure information and can’t returns to normal operation automatically.

8.5 Fan-only mode

Fan speed is high/mid/low/ Auto

8.6 Cooling mode

The 4-way valve is closed under cooling mode.
The action of the compressor and the outdoor fan:

Condition Compressor Outdoor fan

TA> Ts+1 On On Temp. up
TA<Ts+1 Off Off
TA> Ts On On Temp. down
TA<Ts Off Off

Auto fan under cooling mode:

Condition

T=Indoor T emp.-Setting Temp.

Indoor fan speed

T<3℃ Low
3<T<5℃℃ Med.

Temp. up

T>5℃ High
T> 3℃ High
1<T<3℃℃ Med.

Temp. down

T<1℃ Low

Anti-freezing control to indoor evaporator under cooling mode

Condition
Temp. Time

Compressor Outdoor fan

T> TE6 On On Temp. up
T< TE6 >5 Minutes Off Off
T> TE5 On On Temp. down
T< TE5 >5 Minutes Off Off

Condenser high-temperature protection under heating mode

T3 >65 , turn off compressor; T3<6℃ 0 ,Protection removed,Compressor turned on.℃

8.7 Dehumidifying mode

8.7.1 The 4-way valve is off in dehumidifying mode

8.7.2 Compressor and Indoor Fan actions in dehumidifying mode

Compressor run 5 minutes , and indoor fan run 5 minutes in low speed, then turn off the
compressor, indoor fan run 5 minutes in low speed. And repeat on and off cycle.

8.7.3 Low room temperature protection:

When room temperature decreases to below 10 , the compressor and the outdoor fan ℃
will stop(indoor fan is Breeze). Dehumidifying operation will be resumed when room
temperature restores to over 13 .℃

240

8.7.4 Under dehumidifying mode, the anti-freezing function of the indoor heat exchanger is

the same as that of cooling mode.

8.8 Heating mode

8.8.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode.

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.

8.8.2 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.

8.8.3 Action conditions of compressor under 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 A> Ts+3 Off Off Room temp. up
TA<Ts+3 On On
T A< Ts+2 On On Room temp. down
TA>Ts+2 Off Off

8.8.4 Indoor Fan actions under heating mode

Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but
Anti-cold wind function prevails.
Anti-cold wind control function under heating mode

Condition

TE

Indoor fan speed

TE<TE1 Off
TE1<TE<TE2 Breeze

Indoor exchanger temp. up

TE>TE2 Setting fan speed
TE> TE3 Setting fan speed
TE3<TE<TE4 Breeze

Indoor exchanger temp. down

TE<TE4 Off

8.8.5 Auto wind under heating mode

Condition

T=Indoor T emp.-Setting Temp.

Indoor fan speed

T<2℃ High Room temp. up
T>2℃ Med.
T> 0℃ Med. Room temp. down
T<0℃ High

8.8.6 Indoor evaporator high-temperature protection under heating mode

Condition Compressor Outdoor fan

TE<TE8 On On
TE8<TE<TE7 On Off

Indoor exchanger temp. up

TE>TE7 Off Off
TE>TE9 Off Off Indoor exchanger temp. down
TE<TE9 On On

241

8.9 Defrosting operation (Available for heating only).

8.9.1 Defrosting condition:

When T3<0 and compressor runs 40 minutes.℃

T3: Temp. of condenser.

8.9.2 Ending condition of defrost

If one of following conditions is satisfied, end the defrost and turn into heating:
A.The defrost time has reached to 10 minutes.
B.T3>20. ℃

8.9.3 Time sequence of the whole defrosting procedure is as follows

8.10 Automatic operation mode

8.10.1 The air conditioner automatically selects one of the following operation modes: cooling,

heating or ventilation according to the 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 (Fan-only for cooling only type)

8.10.2 The indoor fan blows automatically in corresponding selected mode.

8.10.3 The motion of indoor fan’s blade should accord with the selected operation mode.

8.10.4 One mode should be carried out for at least 15 minutes once selected. If the

compressor cannot start for 15 minutes, reselect the operation mode according to the
room temp. and set temp., or reselect when the set temp. varies.

8.11 Forced cooling function

8.11.1 Select forced cooling function with the forced cooling button or the switch.

8.11.2 The compressor is unconditionally turned on, after 30 minutes cooling operation whose

fan mode is set as low, the A/C operates under the DRY mode with a set temp. of 24 .℃

8.11.3 All protections of remote control cooling are available under forced cooling operation.

8.12 Forced Auto function

Select forced auto function with the forced auto button or the switch.
In forced auto status the A/C operates under remote control mode with a set temp. of

24 .℃

Compressor

4-way Valve

Outdoor Fan

OFF

OFF

ON

ON

ON

242

8.13 Timer Function Requirement

The maximum length of timer is 24 hours and the minimum resolving power is 15
minutes.

8.14 Economic Running

8.14.1 The economic running function is available under cooling, heating or auto mode.

8.14.2 Cooling:

The set temperature rise 1 per hour. Two hours later, the set temperature will ℃
maintain as a constant and the air circulation is kept at low speed.

8.14.3 Heating:

The set temperature decrease 1℃ per hour. Two hours later, the set temperature will
maintain as a constant and the air circulation is kept at low speed (Cold air proof
function takes precedence over all).

8.14.4 Auto:

The economic running function operates in accordance with the selected running mode
by the auto mode.

8.15 Outdoor fan motor
Fan Speed is only one SPEED.

243

8.16 Models and Parameters(Indoor unit)

Model MS3G-30HRN2

HSPEEDH 1100

HSPEEDM 1050

HSPEEDL 1000
HSPEEDS 800
CSPEEDH 1100

CSPEEDM 1020

CSPEEDL 950
CSPEEDS 800

TE1 28℃
TE2 32℃
TE3 30℃
TE4 26℃
TE5 2℃
TE6 7℃
TE7 60℃
TE8 53℃
TE9 50℃

Multi SERIES

1. Features 215

2. Specification 216

3. Dimensions 217

4. Refrigeration cycle diagram 218

5. Operation limits 219

6. Wiring diagram 220

7. Troubleshooting 221

8. Electronic function 222

214

1.Features

1.1 Compact design

1.2 High efficiency and quiet operation

215

2.Specification

Model MS2G-18HRN2 MS2G-21HRN2

Power supply Ph-V-Hz 220-240V~,1PH, 50Hz 220-240V~,1PH, 50Hz

Capacity Btu/h 9000*2 9000+12000

Input W 1000*2 1000+1400

Rated current A 4.5*2 5+6

Cooling

EER Btu/w.h 2.4 2.4

Capacity Btu/h 10000*2 10000+13000

Input W 1000*2 1000+1400

Rated current A 4.5*2 5+6

Heating

COP W/W 2.5 2.5

Moisture Removal L/h

Max. input consumption W 1430X2 1500+1900

Max. current A 6.5*2 7.0+8.0

Starting current A 19.8 33

Model PG180X1C-4DZ3 PG225X2C-4FT

Type Rotar

y

Rotar

y

Brand GD TOSHIBA GD TOSHIBA

Capacity Btu/h 10800X2 10800+13600

Input W 1000X2 1000+1290

Rated current(RLA) A 4.4X2 4.4+5.74

Locked rotor Amp(LRA) A 19.8 33

Thermal protector INNER INNER

Capacitor uF 30 35

Compressor

Refri

g

erant oil ml 400 480

Model RPG13H RPG13H

Brand WeiLin

g

WeiLin

g

Input W 36 36

Capacitor uF 1.2 1.2

Indoor fan motor

Speed(hi/mi/lo) r/min 1330 1330

Indoor air flow (Hi/Mi/Lo) m3/h 470/440/410 470/440/410

Indoor noise level (Hi/Mi/Lo) dB(A

)

38/34/31 38/34/31

Dimension (W*H*D) mm 750×250×188 750×250×188

Packing (W*H*D) mm 830X336X280 830X336X280

Indoor unit

Net/Gross wei

g

ht K

g

8.5/10 8.5/10

Model

YDK94-6A

YDK170-4C

Input W 154 290

Capacitor uF 4 5

Outdoor fan motor

S

p

eed r/min 900/670 1110/810

Outdoor air flow m3/h 1900 2070

Outdoor noise level dB(A

)

58 58

Dimension(W*H*D) mm 895X655X345 895X655X345

Packing (W*H*D) mm 1050X720X470 1050X720X470

Outdoor unit

Net/Gross weight K

g

58/63 60/65

Refrigerant type

g

R407C/800X2 R407C/750+1000

Design pressure MPa 1.2/2.8 1.2/2.8

Liquid side/ Gas side mm(inch

)

6.35(1/4")-9.53(3/8") 6.35(1/4")-9.53(3/8")/12.7(1/2")

Max. refrigerant pipe m 15 15

Refrigerant piping

Max. difference in level m 5 5

Thermostat type Electronic control Electronic control

Operation temp

℃

17-30 17-30

Ambient temp

℃

-7-45 -7-45

Application area m2

(

14-21)X2 14-21,18-26

Qty’per 20’ /40’ /40'HQ set 54/116/132 54/116/132

216

3.Dimensions

3.1 Indoor unit

3.2 Outdoor unit

217

4.Refrigeration cycle diagram

218

5.Operation limits

5.1Cooling operation

Outdoor unit air temp.℃ DB

45

40

35

30

25

20

0 25 50

Indoor air temp.

℃ DB

Note : The chart is the result from the continuous operation under constant air temperature

conditions. However, excludes the initial pull-down stage.

5.2Heating operation

Indoor air temp. ℃ DB

30

25

20

15

10

5

COOLING

-5 5 15 25

Outdoor unit air temp.

℃ DB

Note : The chart is the result from the continuous operation under constant air

temperature conditions. However, excludes the initial pull-down stage.

219

6.Wiring diagram
Indoor unit

Outdoor unit

Ｔ

5

Ｘ

Ｔ

1

Ｒ

Ｔ

3A

Ｒ

Ｔ3Ｂ

Ｘ

Ｐ

7-9

Ｘ

Ｓ

7-9

ＦAＮ

ＣＯＭ

Ｐ

ＣAＰ

1

Ｓ.Ｖ

Ｘ

Ｔ

3--

Ｘ

Ｔ

4

ＣAＰ

1

ＣＯＭ

Ｐ︵Ｂ

︶

ＦAＮ

Ｘ

Ｔ

1

Ｘ

Ｔ

2

FROM INDOOR
UNIT(A)

Y&G

R

T

3

Ｂ

R

T

3

A

Ｘ
Ｓ

8

Ｘ
Ｓ

9

Ｘ
Ｐ

8

Ｘ
Ｐ

9

(WHITE)

(BLACK)

R

T

4

Ｘ
Ｓ

7

Ｘ
Ｐ

7

(RED)

WIRING
DIAGRAM

COM

Ｐ
︵A︶

Ｓ.Ｖ

︵B︶

AC POWER

Ｘ

T3

COMPRE

Ｓ

Ｓ

OR

FAN MOTOR

OUTDOOR FAN
CAPACITOR

4-WAY VALVE

OUTDOOR COMPRE

Ｓ

Ｓ

OR

CAPACITOR
MIDDLE TERMINAL

6-WAY TERMINAL

A&B SYSTEM PIPE
TEMPERATURE SENSOR

CONNECTORS

TRANSFORMER

CONNECTORS

Ｘ

T2

4-WAY TERMINAL

RT4

A&B SYSTEM ROOM
TEMPERATURE SENSOR

PARTCODE

S.V︵A

︶

FROM INDOOR

UNIT(B)

COMP

VALVE

FAN

N

220V 50Hz

6

OUTDOOR UNIT

P1

P2

P3

P4

P5

P6

P7

P8 P9 P10 P11 P12 P13 P14

CN2 CN3

B＿COMP

A＿COMP

CN7

CN8

RED

BLACK

RED

RED

RED

BLUE

BLACK

RED

CAP2

CAP3

CAP2 CAP3

Ｘ

T4

T5

12

SW1

A＿COMP B＿COMP

RELAY

BLACK

YELLOW

C

S

R

RED

BLACK

BLUE

C

S

R

RED

BLACK

BLUE

Y&G Y&G

Y&G

￣

BLACK

BLACK

BLACK

BLACK

BLACK

BLUE

WHITE

RED

BLACK

BLUE

WHITE

COMP

VALVE

FAN

N

Y&G Y&G

1 2

ON

1

LEAVEING
FACTORY

EXPLANATION

1

ON

2

RAPIDLY
CHECK

2

ON

3

CHECK
ITSELF

Ｆ

ＵNＣ

ＴIＯN Ｏ

Ｆ

ＳWIＴＣＨ ＳW１

BLUEBLUE

RLUERLUE

P11

P10

P9

CONNECT TO FAN(HIGH SPEED)
CONNECT TO 4 WAY VALVE

P14

P13

P12

CONNECT TO 4 WAY VALVE

CONNECT TO FAN(HIGH SPEED)

220

7.Troubleshooting

7.1 Indoor unit

Failure phenomenon Operation lamp Timer lamp

Indoor fan speed has been out of control for over 1 minute

☆

X

Indoor room temp. sensor or evaporator temp. sensor is open circuit

or short circuit

☆

on

EEPROM error on

☆

Over current protection of the compressor occurs 4 times in 1h X

☆

r Extinguish

☆ Flash at 5Hz

7.2 Outdoor unit

Failure phenomenon LED1 LED2 LED3

Stand by

☆ ☆ ☆

High temp. protect of condenser

☆ ☆

Temp. sensor in condenser 1 is open circuit or short circuit

☆

Temp. sensor in condenser 2 is open circuit or short circuit

☆

☆ Flash at 2Hz

221

8 Electronic function

8.1 Electric Control working environment

8.1.1 input voltage: 175~253V

8.1.2 Input power frequency:50Hz

8.1.3 Ambient temperature: -7°C~+43°C

8.1.4 Indoor fan normal working amp is less than 1A,

8.1.5 Outdoor fan. Normal working amp is less than 1.5A

8.1.6 Four-way valve normal working amp is less than 1A.

8.1.7 Swing motor: DC12V.

8.2 Proper symbols and their meanings:

TA: Indoor ambient temperature
TE: Indoor evaporator temperature
TS: Setting temperature through the remote controller
TE1: Anti-cold wind, from Fan Off to Breeze temperature
TE2: Anti-cold wind, from Breeze to Setting Fan Speed temperature
TE3: Anti-cold wind, from Setting Fan Speed to Breeze temperature
TE4: Anti-cold wind, from Breeze to Fan Off temperature
TE5: Evaporator low temperature protection entering temperature
TE6: Evaporator low temperature protection restoring temperature
TE7: Evaporator high temperature protection, compressor off temperature
TE8: Evaporator high temperature protection, fan off temperature
TE9: Evaporator high temperature protection, restoring temperature
T3: Outdoor unit pipe sensor
T4: Outdoor temperature sensor

8.3 Systematic functions.

Remote receiving.
Testing and forced run.
Position set for indoor unit wind vane.
LED displaying and alarm.
On or off Timer.
Protection for the compressor.
High temperature protection of indoor heat exchanger under heating mode.
Auto defrosting and heating recovery under heating mode.
Anti cold air under heating mode.
Anti frozen under cooling mode.

222

8.4 Protection

8.4.1 The compressor functions protection with a delay of three minutes.

8.4.2 High temp. protection of condenser.

8.4.3 Sensor protection at open circuit and breaking disconnection

8.4.4 Temperature Fuse break protection

8.4.5 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 entire unit stops and LED displays
failure information and can’t returns to normal operation automatically.

8.5 Fan-only mode

Fan speed is high/mid/low/ Auto

8.6 Cooling mode

The 4-way valve is closed under cooling mode.

The action of the compressor and the outdoor fan:

Condition Compressor Outdoor fan

TA> Ts+1 On On Temp. up

TA<Ts+1 Off Off

TA> Ts On On Temp. down

TA<Ts Off Off

Auto fan under cooling mode:

Condition

T=Indoor Temp.-Setting Temp.

Indoor fan speed

T<3℃ Low
3℃<T<5℃ Med.

Temp. up

T>5℃ High
T> 3℃ High
1℃<T<3℃ Med.

Temp. down

T<1℃ Low

Anti-freezing control to indoor evaporator under cooling mode

Condition

Temp. Time

Compressor Outdoor fan

T> TE6 On On Temp. up

T< TE6 >5 Minutes Off Off

T> TE5 On On Temp. down

T< TE5 >5 Minutes Off Off

Condenser high-temperature protection under heating mode

T3 >65℃, turn off compressor.

8.7 Dehumidifying mode

8.7.1 The 4-way valve is off in dehumidifying mode

8.7.2 Compressor and Indoor Fan actions in dehumidifying mode

Compressor run 5 minutes , and indoor fan run 5 minutes in low speed, then turn off the
compressor, indoor fan run 5 minutes in low speed. And repeat on and off cycle.

8.7.3 Low room temperature protection:

When room temperature decreases to below 10℃, the compressor and the outdoor fan

223

will stop(indoor fan is Breeze). Dehumidifying operation will be resumed when room

temperature restores to over 13℃.

8.7.4 Under dehumidifying mode, the anti-freezing function of the indoor heat exchanger is

the same as that of cooling mode.

8.8 Heating mode

8.8.1 Generally, the 4-way valve is open in heating mode, but it is closed in defrosting mode.

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.

8.8.2 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.

8.8.3 Action conditions of compressor under heating mode: compressor must run for 7

minutes after starting and then judge temperature. Meanwhile other protections are still
valid.

Condition Compressor Outdoor fan

TA> Ts+3 Off Off Room temp. up

TA<Ts+3 On On

TA< Ts+2 On On Room temp. down

TA>Ts+2 Off Off

8.8.4 Indoor Fan actions under heating mode

Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but
Anti-cold wind function prevails.
Anti-cold wind control function under heating mode

Condition

TE

Indoor fan speed

TE<TE1 Off

TE1<TE<TE2 Breeze

Indoor exchanger temp. up

TE>TE2 Setting fan speed

TE> TE3 Setting fan speed

TE3<TE<TE4 Breeze

Indoor exchanger temp. down

TE<TE4 Off

8.8.5 Auto wind under heating mode

Condition

T=Indoor Temp.-Setting Temp.

Indoor fan speed

T<2℃ High Room temp. up
T>2℃ Med.
T> 0℃ Med. Room temp. down
T<0℃ High

224

8.8.6 Indoor evaporator high-temperature protection under heating mode

Condition Compressor Outdoor fan

TE<TE8 On On

TE8<TE<TE7 On Off

Indoor exchanger temp. up

TE>TE7 Off Off

TE>TE9 Off Off Indoor exchanger temp. down

TE<TE9 On On

8.9 Defrosting operation (Available for heating only).

8.9.1 Defrosting condition:

When T3<0℃ and compressor runs 40 minutes.

T3: Temp. of condenser.

8.9.2 Ending condition of defrost

If one of following conditions is satisfied, end the defrost and turn into heating:
A.The defrost time has reached to 10 minutes.

B.T3>20. ℃

8.9.3 Time sequence of the whole defrosting procedure is as follows

Compressor

4-way Valve

Outdoor Fan

OFF

OFF

ON

ON

ON

8.10 Automatic operation mode

8.10.1 The air conditioner automatically selects one of the following operation modes: cooling,

heating or ventilation according to the 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 (Fan-only for cooling only type)

8.10.2 The indoor fan blows automatically in corresponding selected mode.

8.10.3 The motion of indoor fan’s blade should accord with the selected operation mode.

8.10.4 One mode should be carried out for at least 15 minutes once selected. If the

compressor cannot start for 15 minutes, reselect the operation mode according to the
room temp. and set temp., or reselect when the set temp. varies.

225

8.11 Forced cooling function

8.11.1 Select forced cooling function with the forced cooling button or the switch.

8.11.2 The compressor is unconditionally turned on, after 30 minutes cooling operation whose

fan mode is set as low, the A/C operates under the DRY mode with a set temp. of 24℃.

8.11.3 All protections of remote control cooling are available under forced cooling operation.

8.12 Forced Auto function

Select forced auto function with the forced auto button or the switch.
In forced auto status the A/C operates under remote control mode with a set temp. of

24℃.

8.13 Timer Function Requirement

The maximum length of timer is 24 hours and the minimum resolving power is 15
minutes.

8.14 Economic Running

8.14.1 The economic running function is available under cooling, heating or auto mode.

8.14.2 Cooling:

The set temperature rise 1℃ per hour. Two hours later, the set temperature will

maintain as a constant and the air circulation is kept at low speed.

8.14.3 Heating:

The set temperature decrease 1℃ per hour. Two hours later, the set temperature will

maintain as a constant and the air circulation is kept at low speed (Cold air proof
function takes precedence over all).

8.14.4 Auto:

The economic running function operates in accordance with the selected running mode
by the auto mode.

8.15 Outdoor fan motor

T4: Outdoor temp.

T4 Outdoor fan motor

T4>27℃ High speed Cooling mode
T4<25℃ Low speed
T4>13℃ Low speed Heating mode
T4<11℃ High speed

226

227

8.16 Models and Parameters(Indoor unit)

Model MS2G-18CR MS2G-18HR

HSPEEDH 1100

HSPEEDM 1050

HSPEEDL 1000

HSPEEDS 800

CSPEEDH 1100 1100

CSPEEDM 1020 1020

CSPEEDL 950 950

CSPEEDS 800 800

TE1 28℃
TE2 32℃
TE3 30℃
TE4 26℃
TE5 4℃ 4℃
TE6 7℃ 7℃
TE7 60℃
TE8 53℃
TE9 50℃

197

MULTI INVERTER ECO

1. Product features 198

2. Specification 199

3. Dimensions 203

4. Refrigeration cycle diagram 204

5. Operation limits 205

6. Capacity table 206

7. Wiring diagram 208

8. Electric control functions 210

198

1. Product Features

Both indoor units can be operated either simultaneously or separately through the utilization of the advanced

converter technique and microcomputer control.

The flowing volume of refrigerant is adjustable through the electronic expansion valve.
High Cooling and Heating capacity is facilitated through the famous-brand frequency converter compressor.
Indoor noise is minimized through the optimization of the air flow system design, a four-folded evaporator and a

big diameter Cross Flow Fan.

The system is operable under low-voltage.
Effective and prompt defrosting correlates into no cold feelings.
High heating effects under extremely low temperatures.
The systems purging function improves the quality of the air in the room.
Wireless remote controlled function:

---A Manual Switch can operate the air conditioner when the remote controller is misplaced and the batteries are
exhausted.

---Horizontal and vertical louvers can swing automatically and the customized setting flows the air as desired.

---Grounding's have been connected and are safe to use.

---Compressor protection function enabled.

Indoor unit:

1) 4-Bend heat exchanger.

2) Trapeziform innergroove copper.

3) Hydrophilic Aluminum Fin.

4) Two-direction air vane technology.

5) Sleep mode.

6) Anti-rust cabinet.

7) Easy-cleaned panel.

8) Self-diagnosis auto-protection function.

199

2. Specification

Model M2OA-18HRIN2

Indoor unit 7000Btu/h 9000Btu/h 12000Btu/h

Power supply Ph-V-Hz 1Ph, 220-240V~, 50Hz

Capacity Btu/h single: 7000-12000; Twin:16000-24000
Input W single: 1000W-1350W; Twin:2570W-2900W
Rated current A single: 4.8A-6.7A; Twin:11.7A-13.8A

Cooling

EER Btu/w.h single: 7.0-8.9; Twin:6.2-8.3
Capacity Btu/h single: 10000-14000; Twin:24000-27000
Input W single: 1300W-1650W; Twin:2100W-2800W
Rated current A single: 6.3A-8.0A; Twin:11.0A-13.5A

Heating

COP Btu/w.h single: 7.7-8.5; Twin:11.4-9.6
Moisture Removal L/h 0.7 0.9 1.2
Max. input consumption W single: 1800W; Twin:3200W
Max. current A single: 13A; Twin:20A
Starting current A 10

Model

BG240X2CS-20KU

Type Rotary inverter

Brand GD Toshiba

Capacity Btu/h 18000

Input W 1690

Rated current(RLA) A 11.6

Locked rotor Amp(LRA) A 60

Thermal protector Internal

Capacitor uF 85UF/250V

Compress
or

Refrigerant oil ml RB68AF/α68TF/T-68 750 ml

Model

RPG13H RPG13H RPG13C

Brand

Welling Welling Matsushita

Input W

36

36

50

Capacitor uF

1.2uF/≥450VAC 1.2uF/≥450VAC 1.5uF/≥450VAC

Indoor
fan motor

Speed(hi/mi/lo) r/min 1050/950/750 1100/1000/800 1060/900/800

Number of rows 2 2

2

Tube pitch(a)x row pitch(b) mm 21×13.37 21×13.37

21×13.37

Fin spacing mm 1.5 1.5

1.3

Fin type (code)

Hydrophilic

aluminium

Hydrophilic

aluminium

Hydrophilic

aluminium

Tube outside dia.and type mm

φ7, innergroove

tube

φ7, innergroove

tube

φ7, innergroove

tube

Coil length x height x width mm 578×252×27.34 578×252×27.34

635×315×27.34

Indoor
coil

Number of circuits 2 2

2

200

Indoor air flow (Hi/Mi/Lo) m3/h 500/410/320 520/430/330

560/460/380

Indoor noise level (Hi/Mi/Lo) dB(A) 35/32/26 36/32/26

36/32/26

Dimension (W*H*D) mm

750*250*188 750*250*188 815*280*195

Packing (W*H*D) mm

830*336*280 830*336*280 915*360*275

Indoor
unit

Net/Gross weight kg

8.5/11 8.5/11 11/14

Model YDK53-6M

Brand Welling

Input W 148

Capacitor uF 3.0

Outdoor
fan motor

Speed r/min 775

Number of rows 1.5

Tube pitch(a)x row pitch(b) mm 25.4×22

Fin spacing mm 1.7

Fin type (code) Hydrophilic aluminium

Tube outside dia.and type mm φ9.53 innergroove trube

Coil length x height x width mm 776×660×22

Outdoor
coil

Number of circuits 2
Outdoor air flow m3/h 2500
Outdoor noise level dB(A) 60

Dimension(W*H*D) mm 845X695X335

Packing (W*H*D) mm 975X772X405

Outdoor
unit

Net/Gross weight kg 71/74
Refrigerant type R407C g 2200
Design pressure(Hi/Lo) MPa 2.8/1.2

Liquid side/ Gas side mm Ф6.35/Ф9.53 Ф6.35/Ф9.53

Ф6.35/Ф12.7

Max. refrigerant pipe length m 10 10 10

Refrigera
nt piping

Max. difference in level m 5 5 5
Connection wiring No
Plug type No
Controller Remote
Operation temp ℃ 17~30
Ambient temp ℃ 18~43(cooling); -15~24(heating)
Application area m2

14-18 18-24 20-30

Notes: 1. Nominal cooling capacities are based on the following conditions:

Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 8m(horizontal)

2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 8m(horizontal)

3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an
anechoic room.

201

Model M3OA-27HRIN2

Indoor unit 7000Btu/h 9000Btu/h 12000Btu/h

Power supply Ph-V -Hz 1Ph, 220-240V~, 50Hz

Capacity Btu/h single: 7000-12000; Twin:16000-24000; Three:24000
Input W single: 1000W-1350W; Twin:2570W-2900W; Three:2900W
Rated current A single: 4.8A-6.7A; Twin:11.1A-13.8A; Three: 13.8A

Cooling

EER Btu/w.h single: 7.0-8.9; Twin: 6.2-8.3; Three: 8.3
Capacity Btu/h single: 10000-14000; Twin: 24000-27000; Three: 27000
Input W single: 1300W-1650W; Twin: 2100W-2800W; Three: 2800W
Rated current A single: 6.3A-8.0A; Twin: 11.0A-13.5A; Three: 13.5A

Heating

COP Btu/w.h single: 7.7-8.5; Twin: 11.4-9.6; Three: 9.6
Moisture Removal L/h 0.7 0.9 1.2
Max. input consumption W 3200
Max. current A 20
Starting current A 10

Model

BG240X2CS-20KU

Type Rotary inverter

Brand GD Toshiba

Capacity Btu/h 18000

Input W 1690

Rated current(RLA) A 11.6

Locked rotor Amp(LRA) A 60

Thermal protector Internal

Capacitor uF 85UF/250V

Compress
or

Refrigerant oil ml RB68AF/α68TF/T-68 750 ml

Model

RPG13H RPG13H RPG13C

Brand

Welling Welling Matsushita

Input W

36

36

50

Capacitor uF

1.2uF/≥450VAC 1.2uF/≥450VAC 1.5uF/≥450VAC

Indoor
fan motor

Speed(hi/mi/lo) r/min 1050/950/750 1100/1000/800 1060/900/800

Number of rows 2 2

2

Tube pitch(a)x row pitch(b) mm 21×13.37 21×13.37

21×13.37

Fin spacing mm 1.5 1.5

1.3

Fin type (code)

Hydrophilic

aluminium

Hydrophilic

aluminium

Hydr0philiC

aluminium

Indoor
coil

Tube outside dia.and type mm

φ7, innergroove tube φ7, innergroove tube

φ7, innergroove tube

202

Coil length x height x width mm 578×252×27.34 578×252×27.34

635×315×27.34

Number of circuits 2 2

2

Indoor air flow (Hi/Mi/Lo) m3/h 500/410/320 520/430/330

560/460/380

Indoor noise level (Hi/Mi/Lo) dB(A) 35/32/26 36/32/26

36/32/26

Dimension (W*H*D) mm 750*250*188 750*250*188 815*280*195

Packing (W*H*D) mm

830*336*280 830*336*280 915*360*275

Indoor
unit

Net/Gross weight Kg

8.5/11 8.5/11 11/14

Model YDK53-6M

Brand Welling

Input W 148

Capacitor uF 3.0

Outdoor
fan motor

Speed r/min 775

Number of rows 1.5

Tube pitch(a)x row pitch(b) mm 25.4×22

Fin spacing mm 1.7

Fin type (code) Hydrophilic aluminium

Tube outside dia.and type mm φ9.53 innergroove trube

Coil length x height x width mm 776×660×22

Outdoor
coil

Number of circuits 2
Outdoor air flow m3/h 2500
Outdoor noise level dB(A) 60

Dimension(W*H*D) mm 845X695X335

Packing (W*H*D) mm 975X772X405

Outdoor
unit

Net/Gross weight Kg 72/76
Refrigerant type R407C g 2400
Design pressure(Hi/Lo) MPa 2.8/1.2

Liquid side/ Gas side mm Ф6.35/Ф9.53 Ф6.35/Ф9.53

Ф6.35/Ф12.7

Max. refrigerant pipe length m 10 10 10

Refrigera
nt piping

Max. difference in level m 5 5 5
Connection wiring No
Plug type No
Controller Remote
Operation temp ℃ 17~30
Ambient temp ℃ 18~43(cooling); -15~24(heating)
Application area m2

14-18 18-24 20-30

Notes: 1. Nominal cooling capacities are based on the following conditions:

Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. Piping: 8m(horizontal)

2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. Piping: 8m(horizontal)

3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an
anechoic room.

203

3 Dimensions

1. Indoor unit 7/9K

2. Indoor Unit 12K

3. Outdoor unit

204

4 Refrigeration Cycle Diagram

Refrigeration circuit drawing of inverter trinary type

2

heat
exchanger

filter

heat
exchanger

filter

filter

indoor unit

heat
exchanger

filter

high-pressure
switch 1

4-way
valve

down part

condenser

3

capillary

capillary

filter

up part

oil separator

low-pressure
switch 2

low-pressure oil tank

capillary

discharge
sensor

outdoor unit

inverter compressor

Refrigeration circuit drawing of inverter binary type

2

heat
exchanger

filter

heat
exchanger

filter

high-pressure

switch 1

4-way

valve

condenser

down part

3

capillary

capillary

filter

up part

oil separator

low-pressure
switch 2

low-pressure oil tank

capillary

discharge
sensor

outdoor unit

inverter compressor

205

5 Operation Limits

5.1 Cooling operation

Outdoor unit air temp.℃
60

50

40

30

20

10

10 17 25 30 35 40

Indoor air temp.

℃

Note :the chart is the result from the continuous operation under constant air temperature
conditions. however, excludes the initial pull-down stage.

5.2 Heating operation

Indoor air temp. ℃

30

20

10

5

-5

-15

-15 -5 5 15 25 30

Outdoor unit air temp.

℃

Note :the chart is the result from the continuous operation under constant air
temperature conditions. however, excludes the initial pull-down stage.

206

6 Capacity Table

6.1 Capacity table of Inverter Binary Eco type
Indoor units can be combined by
7000Btu/h+9000 Btu/h；
7000Btu/h+12000 Btu/h
9000Btu/h+9000 Btu/h
9000Btu/h+12000 Btu/h
12000Btu/h+12000 Btu/h
Cooling

Indoor unit a (W) Indoor unit b (W)
7000Btu/h 2800

9000Btu/h 3000
12000Btu/h 3400
7000Btu/h+7000 Btu/h 2300 2300
7000Btu/h+9000 Btu/h 2500 2500
7000Btu/h+12000 Btu/h 2200 2800
9000Btu/h+9000 Btu/h 2500 2500
9000Btu/h+12000 Btu/h 2400 3200
12000Btu/h+12000 Btu/h 3200 3200

Heating

Indoor unit a (W) Indoor unit b (W)
7000Btu/h 3400

9000Btu/h 3600
12000Btu/h 4000
7000Btu/h+7000 Btu/h 2800 2800
7000Btu/h+9000 Btu/h 3000 3000
7000Btu/h+12000 Btu/h 2600 3400
9000Btu/h+9000 Btu/h 3000 3000
9000Btu/h+12000 Btu/h 3000 3900
12000Btu/h+12000 Btu/h 3900 3900

6.2 Capacity table of Inverter Trinary Eco type
Indoor units can be combined by
7000Btu/h*2+9000 Btu/h；
7000Btu/h*2+12000 Btu/h
7000Btu/h*3
9000Btu/h*2+7000 Btu/h
9000Btu/h*2+12000 Btu/h
9000Btu/h*3
12000Btu/h*2+7000 Btu/h
12000Btu/h*2+9000 Btu/h
7000Btu/h+9000Btu/h+12000 Btu/h

207

Cooling
Indoor unit a (W) Indoor unit b (W) Indoor unit c (W)

7000Btu/h 2800
9000Btu/h 3000
12000Btu/h 3400
7000Btu/h+7000 Btu/h 2300 2300
7000Btu/h+9000 Btu/h 2500 2500
7000Btu/h+12000 Btu/h 2200 2800
9000Btu/h+9000 Btu/h 2500 2500
9000Btu/h+12000 Btu/h 2400 3200
12000Btu/h+12000 Btu/h 3200 3200
7000Btu/h*2+9000 Btu/h 2200 2200 2200
7000Btu/h*2+12000 Btu/h 2000 2000 2600
7000Btu/h*3 2200 2200 2200
9000Btu/h*2+7000 Btu/h 2200 2200 2200
9000Btu/h*2+12000 Btu/h 2100 2100 2600

9000Btu/h*3 2200 2200 2200
12000Btu/h*2+7000 Btu/h 2000 2400 2400
12000Btu/h*2+9000 Btu/h 2000 2400 2400
Heating

Indoor unit a (W) Indoor unit b (W) Indoor unit c (W)
7000Btu/h 3400
9000Btu/h 3600
12000Btu/h 4000
7000Btu/h+7000 Btu/h 2800 2800
7000Btu/h+9000 Btu/h 3000 3000
7000Btu/h+12000 Btu/h 2600 3400
9000Btu/h+9000 Btu/h 3000 3000

9000Btu/h+12000 Btu/h 3000 3900
12000Btu/h+12000 Btu/h 3900 3900
7000Btu/h*2+9000 Btu/h 2600 2600 2600
7000Btu/h*2+12000 Btu/h 2300 2300 3200
7000Btu/h*3 2400 2400 2400
9000Btu/h*2+7000 Btu/h 2700 2700 2700
9000Btu/h*2+12000 Btu/h 2500 2500 3200
9000Btu/h*3 2700 2700 2700
12000Btu/h*2+7000 Btu/h 2400 3200 3200
12000Btu/h*2+9000 Btu/h 2400 3200 3200

208

7. Wiring Diagram

7.1 Indoor unit 7/9K

7.2 Indoor unit 12K

209

7.3 Outdoor unit M2OA-18HRIN2

Outdoor unit M3OA-27HRIN2

210

8. Electric Control Functions

8.1 Control system

The control system adopts modular design, that is, all indoor units communicate with outdoor units, ref. to the
following figures for the control structure between indoor units and outdoor units. In the structure, the indoor control
board receives the information from users (for exam. set temp., fan speed etc.) and environment (ex, indoor coil
temp., indoor temp. etc.) ,and organize it to control the action of relevant parts, then transmits the signals to outdoor
control board through the following communication circuit. Outdoor control board can deal with the information
from indoor unit and figure out the best running mode, then transfer the instruction to indoor units to carry out it.
Indoor unit receive the user’s remote control signals.
Indoor unit Outdoor unit

T

2B

T1、T2、Ts T3、 T4、T3
Fan Speed Pressure switch
Pressure switch

4-way valve

Fan Fan motor
通讯 Co Compressor
Swing motor EXV

1、 T1 Indoor ambient temp.
2、 T2 Indoor evaporator middle part temp
3、 T2B Indoor evaporator outlet temp.
4、 Ts Indoor setting temp.
5、 T3 Outdoor heat-exchanger outlet temp.
6、 T4 Outdoor ambient temp.

8.2 Protection function

8.2.1 AC Volt Protection

a. Over-voltage protection

 When AC voltage ≤ 260V for 30 seconds, Outdoor Unit resumes operation.
 When AC voltage ≥ 270V for 30 seconds, Outdoor Unit stops operation and alarms.

Note: Voltage sampling precision is

±3%.

b. Lack-voltage protection

ote control

211

Volt increase (Resume)

198
190 MAX=78Hz 190
180
172 MAX=70Hz 172
167
Stop

Volt decrease (Limited Frequency)

8.2.2 AC Amp Protection
The outdoor control board checks the compressor current and do over-current protection.
If the compressor current is over the scheduled value, the system will stop and all indoor units will display
malfunction code.

Note: 1. In order to prev ent protect ion due to too big LRA when compressor starts, the outdoor control board begin s

to check the compressor current after 10 seconds.

2. If current protection happens, the compressor will stop and restart 3 minutes later.

8.2.3 High-pressure Protection and Low-pressure Protection
The High-pressure switch and Low-pressure switch are installed at suction pipe and discharge pipe separately. And
users can select to install. Normally, the high-pressure switch is cut down when higher than

425Psi (3.3Mpa Cut
down, 2.4Mpa Resume). While the low-pressure switch is cut down when lower than 7Psi (0.05Mpa
On, 0.15Mpa Resume).
Under high-pressure protection or low-pressure protection, the compressor will stop and restart 3
minutes later.

8.2.4 Outdoor Unit communication protection

8.2.4.1 Communication protection between indoor unit and outdoor system chip
If the outdoor unit can’t receive the indoor signal for 30 seconds, then the indoor units are judged as no starting and
there is no alarm signal. If the indoor units send signal to system chip for 2 minutes and no feedback signal is
received, then judge as communication malfunction.

8.2.4.2 Communication protection between outdoor system chip and inverter chip
If can’t receive signal or receive wrong signal for over 2 minutes, Indoor/Outdoor Unit stops operation. When the
signal is right, Indoor/Outdoor Unit restarts.

8.2.5 Outdoor condenser high temperature protection
Under cooling mode, if

T3〉65℃ for 3 minutes, the compressor will stop. When T3〈52℃, the protection
is not valid.
When protection is released, the compressor restarts 3 minutes later.

Volt(V)

212

8.2.6 T emperature Sensor short/open protection
When the outdoor condenser pipe temperature T3, outdoor ambient temperature T4, indoor evaporator outlet
temperature

T2B are checked out of range 0.05～4.95V, it think temperature sensor short/open
protection. The compressor, four-way valve and outdoor fan motor will stop and send malfunction
signal to indoor units.
When the volt is resumed to the range 0.05～4.95V, then resume signal to indoor units and control
on-off of the compressor, four-way valve and outdoor fan motor by indoor size.

8.2.7 Outdoor low temperature protection
If the outdoor temperature is lower than -15℃ for 1hour, the compressor and fan motor will stop. And
any operation is not valid.
If the outdoor temperature is higher than -12℃ for 10 minutes and the compressor stops operation
for 1h, or the outdoor temperature is higher than 5℃ for 10 minutes, then restart and enter into the
prior operation mode.
If any indoor unit sends out this protection request, the outdoor unit will stop compressor until all
indoor units have not this protection request.

8.2.8 Compressor pre-heating function
When the outdoor temperature is lower than 3℃ and the compressor stops operation for more than 3
hours, or the outdoor temperature is lower than 3℃ and the power is just put on, the compressor
enters into pre-heating condition.

8.3 Display function

8.3.1 Checking function
The indoor and outdoor operation condition can be examined by check button.

Normal display Operation mode Capacity request Number of indoor units ambient temp.

Outdoor pipe temp. Compressor current No.1 PMV opening No.2 PMV opening

No.3 PMV opening

8.3.2 Explanation of display function

1. “－－”: Standing-by

2. When the compressor is in operation, the compressor operation frequency will be displayed on
the digital pipe.

3. “ｄＦ”: Defrosting

4. Under standing-by, display“－－” when pre-heating and display “11.” When pre-heating after

turning on the AC.

5. Under malfunction protection:

213

Display contents Malfunction or Protection

Ｅ 0 EEPROM Parameter Malfunction
Ｅ１ No.1 Indoor unit Evaporator outlet temp. sensor malfunction
Ｅ２ No.2 Indoor unit Evaporator outlet temp. sensor malfunction
Ｅ３ No.3 Indoor unit Evaporator outlet temp. sensor malfunction
Ｅ４ Outdoor temp. sensor malfunction
Ｅ５ Compressor volt protection
Ｅ６ Obligate
Ｅ 7 Outdoor inverter communication malfunction
Ｐ 0 Top temp. protection
Ｐ１

High-pressure protection

Ｐ２

Low-pressure protection

Ｐ３

Compressor current protection

Ｐ４ Module protection
Ｐ５ Outdoor low-temperature protection
Ｐ６ Condenser high-temperature protection
Ｐ 7 Obligate

178

AC INVERTER SERIES II

1. Features 179

2. Specification 180

3. Dimensions 182

4. Refrigeration cycle diagram 184

5. Operation limits 185

6. Wiring diagram 186

7. Troubleshooting 189

8. Electronic function 190

179

1.Features

1.1 Powerful at cooling/heating, 1.3 times and 1.6 times relatively higher than normal same type of
models.

1.2 Low voltage start-up function, even at 160 V it can normally start.

1.3 Anti-icing function at cooling mode.

1.4 Anti-cold air function at heating mode.

1.5 Auto-defrosting and heating recovering function at heating mode.

1.6 Outdoor whole electric current protection

1.7 Temperature protection of the outdoor compressor top.

1.8 Restart protection for the compressor.

1.9 24 hours on/off mode time setting.

1.10 Error self diagnosis function.

1.11 Protection against over-load or too-low current inputted through alternating current.

180

2. Specification

Model MSG-09HRI MSG-12HRI

Power supply Ph-V-Hz 220-240V, 50HZ 220-240V, 50HZ

Capacity Btu/h 9000(2730-10600) 12000(3070-12300)
Input W 1080(270-1470) 1260(310-1710)
Rated current A 6(1.45-7.60) 7.2(1.60-8.80)

Cooling

EER Btu/w.h 8.3 9.52
Capacity Btu/h 12000(2730-14000) 15000(3070-17060)
Input W 1350(270-1800) 1790(300-2380)
Rated current A 7.2(1.45-9.30) 8.4(1.60-12.30)

Heating

COP W/W 2.6 2.5
Moisture Removal L/h 1 1.2
Max. input consumption W 2300 2600

Model 2PV132N7BC02 2PV132N7BC02
Type Rotary Rotary
Brand MATSUSHITA MATSUSHITA
Capacity Btu/h 8900 8900
Input W 855 855
Rated current(RLA) A 5.1 5.1
Locked rotor Amp(LRA) A 16 16
Thermal protector CS-7LN120 CS-7LN120

Compressor

Refrigerant oil ml 350 350
Model RPG13F RPG20A
Input W 36.5 35
Capacitor uF 1.2UF/450VAC 1UF/450VAC

Indoor fan motor

Speed(hi/mi/lo) r/min 1100/1000/900 1100/1000/900
Indoor air flow (Hi/Mi/Lo) m3/h 500 540
Indoor noise level (Hi/Mi/Lo) dB(A) 36/32/26 38/34/28

Dimension (W*H*D) mm 750X250X188 875X270X176

Packing (W*H*D) mm 870X336X280 1000X355X265

Indoor unit

Net/Gross weight Kg 8.5/11 11/14

Model YDK20-6g YDK25-6-3

Input W 70 75

Capacitor uF 2.5 2.5

Outdoor fan motor

Speed r/min 800 900
Outdoor noise level dB(A) 50 53

Dimension(W*H*D) mm 780X540X240 780X540X240

Packing (W*H*D) mm 910X575X335 910X575X335

Outdoor unit

Net/Gross weight Kg 36/39 40/43
Refrigerant type g 870 1120
Design pressure MPa 2.6 2.6

Liquid side/ Vapor side mm(inch) Ф6.35/Ф9.53 Ф6.35/Ф12.7

Max. refrigerant pipe length m 10 10

Refrigerant piping

Max. difference in level m 5 5

A

pplication area m2 18-24 20-30

★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.

181

Model Item MSG-07HRIN2 MSG-09HRIN2 MSG-12HRIN2

Power source 220-240V~ 50Hz 220-240V~ 50Hz 220-240V~ 50Hz

Capacity BTU/H 7000(2700~9000) 9000(2730~10600) 12000(3070~12300)
Input W 820(250~1200) 1080(270~1470) 1400(310~1710)
Running current A 4.8(1.35~6.2) 6.0(1.45~7.6) 7.5(1.6~8.8)

Cooling

EER BTU/W.H 8.3 8.3 8.6
Capacity BTU/H 9000(2700~11000) 12000(2730~14000) 14000(3070~17000)
Input W 1010(250~1300) 1400(270~1800) 1790(300~2380)

Heating

Running current A 5.6(1.35~6.7) 7.2(1.49~9.3) 10.5(1.6~12.3)

Max. input consumption W 2100 2300 2600

Model BG130X1C-20FZ BG130X1C-20FZ BG130X1C-20FZ
Type Rotary Inverter Rotary Inverter Rotary Inverter
Brand MIDEA T OS HIBA MIDEA TOSHIBA MIDEA TOS HIBA
Refrigerant oil ml 370 370 370

Compressor

Refrigerant oil type R407C R407C R407C
Refrigerant R407C g 800 800 1150
Design pressure MPa 2.6 2.6 2.6

Input W RPG13H 36 RPG13H 36 RPG13C 50

Capacitor uF 1.2uF/≥450VAC 1.2uF/≥450VAC 1.5uF/≥450VAC

Speed level 3 3 3

Hi speed( rpm) 1100 1100 1060

Mid speed( rpm) 1000 1000 900

Indoor fan
motor

Low speed( rpm) 800 800 800

High fan m3/h 500 520 560

Middle fan m3/h 430 430 460

Air flow
(indoor)

Low fan m3/h 330 330 380
Noise level
(indoor)

dB(A) 35/32/26

36/32/26 36/32/26

Input W YDK23-6G 63 YDK23-6G 63 YDK23-6G 63 Outdoor fan
motor

Capacitor uF 2.5uF/≥450VAC 2.5uF/≥450VAC 2.5uF/≥450VAC
Noise

(outdoor)

High dB(A) ≤51 ≤51 ≤53

dimension(W*H*D) 750*250*188 750*250*188 815*280*195

Packing (W*H*D) 830*336*280 830*336*280 915*360*275

Indoor unit

Net weight kg 8.5 8.5 11

dimension(W*H*D) 780*520*240 780*520*240 780*520*240

Packing (W*H*D) 910*575*335 910*575*335 910*575*335

Outdoor unit

Net weight kg 37 37 40

★1 The noise date is base on anechoic chamber, during actual operation, these values are normally somewhat different as a result of ambient
condition.

182

3. Dimensions

3.1 Indoor Unit(MSG-09HRI, MSG-07/09HRIN2)

3.2 Indoor Unit(MSG-12HR1)

183

3.3 Indoor Unit (MSG-12HRIN2)

3.4 Outdoor Unit

184

4. Refrigeration Cycle Diagram

Indoor unit outdoor unit

Valve

Sensor of room temp Heat exchanger

. 4 way valve

Sensor

Heat exchanger Sensor of temp

Sensor of heat exchanger temp

. Sensor of heat exchanger temp

Compressor

Valve Capillary

185

5. Operation Limits

5.1 Cooling operation

Outdoor unit air temp.℃
60

50

40

30

20

10

10 17 25 30 35 40

Indoor air temp.

℃

Note :the chart is the result from the continuous operation under constant air temperature
conditions. however, excludes the initial pull-down stage.

5.2 Heating operation

Indoor air temp. ℃

30

20

10

5

-5

-15

-15 -5 5 15 25 30

Outdoor unit air temp.

℃

Note :the chart is the result from the continuous operation under constant air
temperature conditions. however, excludes the initial pull-down stage.

186

6.

Wiring Diagram

Indoor unit（MSG-09HRI MSG-07HRIN2 MSG-09HRIN2）

Indoor unit （MSG-12HRI）

CN4

CN7

CN12

CN11

TRANSFORMER

INDOOR

FAN

OUTDOOR

2(N)

L N S

1

RED

BLACK

WHITE

4

YELLOW

3

Y&G

YELLOW

BLUE

BLACK

Y&G

CN9

BROWN/RED

2

CN14

CN15

CN01

CN4

CN21

9

CN2

CN20

CZ3

2

3

2

M

3

3

5

M

LOUVER
MOTOR

SWITCH
BOARD

DISPLAY
BOARD

OVERHEAT

PROTECTER

AMBIENT
SENSER

HEAT EXCHANGE
SENSER

187

Outdoor unit （MSG-09HRI，MSG-12HRI）

S
NL

188

Indoor unit(MSG-12HRIN2)

Outdoor unit (MSG-07HRIN2 / MSG-09HRIN2 / MSG-12HRIN2)

NL

S

189

7.Troubleshooting

7.1 Indoor Unit Error Display Function

LED4 operation LED2 defrosting LED1 timer LED4 auto

LED2

defrost

LED1
Timer

LED3

Auto

LED4

operation

LED STATUS

X X O ☆ Mold protection

O X X ☆ Compressor top protection against temperature

X O X ☆ Open or short circuit of outdoor temperature sensor
X O O ☆ Over load or too low voltage protection

O O O ☆

Room temperature or evaporator temperature sensor open
or short circuit of

O O ☆ ☆ Fan speed beyond control

☆ X O ☆ Zero-crossing examination error
☆ O X ☆ Temperature fuse protection

X X ☆ ☆ EEPROM data error

☆ O X ☆ Types doesn't match

☆ ☆ ☆ ☆ Indoor / outdoor units communication protection

O (on) X (off) ☆ (flash)

7.2.Outdoor Unit Error Self-diagnosis Display

Outdoor Unit Error： if L4 flashes at 1Hz.
Outdoor unit works: L4 on
Outdoor unit Stand by: if L4 flashes at 0.5Hz

190

8 .Electronic Function

8.1 General Protection

8.1.1 Temperature Protection of Compressor Top

8.1.2 3 minutes Delayed Starting Protection of the Compressor

8.1.3 Voltage Protection

8.1.4 The frequency Up-Down speed at which the compressor starts, operates and shuts off will be

subject to the following principles (outdoor chip):

8.1.5 Frequency Converter Mold Protection (outdoor chip):

The Frequency Converter Mold itself has a protection function against current, voltage and
temperature, if there are 4 times of above mentioned protection functioning within 1 hour (when
the compressor's consecutive operation lasts more than 10 minutes, the fore-mentioned 4
counts will be cleared), the whole machine will shut off and the mold protection gives an alarm.

8.2 Fan-only Mode Function Requirement

8.2.1 The compressor, 4 way valve and outdoor fan are off at Fan-only mode.

8.2.2 Temperature setting function is cancelled, the set temperature can not be displayed, nor

adjusted.

8.2.3 The rotational speed of indoor fan can be optionally chosen by remote control as

High/Mid/Low/Auto.

8.2.4 The indoor fan vanes at Fan-only mode perform the same as those at cooling mode.

HZ

1HZ/S
92Hz 2HZ/S

57Hz 1HZ/S

1HZ/S

6HZ/S

time
50 Sec
2 min

191

8.2.5 Performance at Auto mode at Fan-only status is the same as that at Auto mode at cooling status,

provided that the set temperature is 24°c.

8.3 Cooling Mode Function Requirement

8.3.1 At cooling mode the 4 way valve is off.

8.3.2 Anti-icing Control for Indoor Evaporator

When the temperature of indoor heat exchanger drops to ≤ 4°c, the frequency will reduce one
step down (including F0) and last for 1 minute every time until the temperature is kept between 4

- 7°c. If the temperature rises to ≥ 7°c, the limitation then will be removed.
When the temperature of indoor heat exchanger drops to < 0°c, shut off the compressor and it
will resume when the temperature rises up to > 5°c.

8.3.3 Outdoor Unit Current Control When Cooling:

Note: The frequency down at the diagram is in accordance with the present frequency dropping

down, to determine every 2 seconds whether the frequency is keeping going down or is
recovering.

°C

27.5 High

27.0

25.5 Mid

25.0
Low

Shut off the compressor
(10.2A) 8.0 A

frequency down

(8.8A) 6.8 A
frequency unchanged
(7.4A) 5.4 A

resume to normal

192

8.3.4 Indoor fan operates in accordance with the following principles:

8.3.4.1 When indoor fan is in operation, it can be remote controlled to High/Mid/Low/Auto modes.

8.3.4.2 The fan speed at Auto mode in cooling status is subject to the following:

8.3.5 Indoor fan vanes at cooling mode will swing in accordance with the following:

When just plugged in for cooling, the vanes will open to the standard angle 50°.
The vane angle can be set by remote control at any angle between 50° and 105° (every setting

can adjust 6°) or set swinging (swinging angle will be 25°).

8.4 Dehumidifying Mode Requirements

8.4.1 At dehumidifying mode, the 4 way valve is shut off

8.4.2 At dehumidifying mode, the indoor fan is fixed in Breeze status and not adjustable.

8.4.3 At dehumidifying mode, the compressor operates in accordance with the following principles:

8.4.4 Too-low room temperature protection

During dehumidifying, when room temperature drops down < 10°c, the compressor will shut off,
and when the room temperature rises up than 12°c, the compressor resumes operation.

8.4.5 At dehumidifying mode, the anti-icing function of indoor heat exchanger applies.

°C room temperature - set temperature

+4.0 High
+3.0
+1.5 Mid
+1.0
Low

Room temperature - set temperature

2.5 F3

2.0

1.5 F2

1.0

0.5 F1

0.0
F1

193

8.4.6 At dehumidifying mode, the power voltage and outdoor temperature limitation to the highest

frequency when compressor starts and operates is the same as that at cooling mode.

8.5 Heating Mode Function Requirement

8.5.1 At heating mode, the 4 way valve is on, during defrosting operation, it is off.

8.5.2 Outdoor fan usually turns on or off in accordance with the action of compressor, except for

defrosting and ending of the defrost.

8.5.3 Indoor fan action:

Anti-cold air control

8.5.4 Indoor fan can be set by remote control to any mode like High/Mid/Low/Auto, however anti-cold

air function comes first.

Auto fan

Temperature of heat exchanger

37°c
Set rotational speed
34°c
33°c

breeze
18°c
fan off

Room temperature - set temperature

-0.5
Low

-1.0

-1.5 Mid

-2.0
High

194

8.5.5 Outdoor Unit current control when heating
Note:
The frequency in the table
goes down in accordance
with the present frequency,
determine every 2 seconds
whether it keeps going
down or it is recovering.

8.5.6 Indoor evaporator protection against high temperature

When the temperature of indoor heat exchanger is higher than 53°c, the frequency will reduce one
step and last for 20 seconds every time until the temperature drops down lower than 53°c. If the
temperature drops down < 48°c, the limitation then will be removed (the frequency will not going
down further when reaching 35Hz).
When the temperature of indoor heat exchanger is higher than 63°c, shut off the compressor.

8.5.7 Indoor fan vanes at heating mode will swing in accordance with the following:

When just plugged in for heating, the vanes will open to the standard angle 220°.
The vane angle can be set by remote control at any angle between 0° and 220° (every setting can
adjust 6°) or set swinging (swinging angle will be 25°).

8.5.8 Defrosting operation

8.5.8.1 Defrosting precondition:

Defrosting starts when meeting one of the three conditions:
① The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than

40 minutes, and the temperature remains consecutively Ti1 for more than 3 minutes.

Model Ti1:
MSG-09HRI : -4°c
MSG-12HRI : -6°c
MSG-09HRIN2 : -9°c

MSG-09HRIN2 : -9°c

Compressor off
(11.5A) 10.0A

frequency down

(10.5A) 8.8A
frequency unchanged
(9.2A) 7.4A

195

② The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than

80 minutes, and the temperature remains consecutively Ti2 for more than 3 minutes.

-

-

°

-

-

°

-

-

°

-

-

°

③ The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than

120 minutes, and the temperature remains consecutively Ti3 for more than 3 minutes.

-

-

°

-

-

°

-

-

°

-

-

°

Note: The time period starts to count when outdoor heat exchanger temperature is lower than

3°c, the defrosting operation starts when the exchanger temperature remains lower than the
starting temperatures which are Ti3, Ti2, Ti1.

8.5.8.2 Conditions of defrost ending

Defrosting ends when meeting any of the following three conditions and it turns to normal

heating operation.

① When the temperature of outdoor heat exchanger rises up to 12°c.
② When the temperature of outdoor heat exchanger rises up to 8°c and this continues for more

than 80 seconds.

③ When defrosting action continues for 10 minutes.

8.5.8.3 Defrosting Action

Max 10 mins
30 sec.
ON 10 sec. ON 30 sec
Compressor OFF
ON ON
4 way valve OFF
ON ON
Outdoor fan OFF
ON ON
Indoor fan OFF

The indoor fan operates in anti-

cold air mode when it recovers

196

8.5.9 Set Function Test

When it is detected that the outdoor temperature is between 5 - 9°c and room temperature is
between 18 - 22°c, provided that the heating operation remains consecutively more than 30
minutes, the compressor's highest operational frequency is FMAX=F8=96HZ. If any of the above
conditions is not met, it will quit from set frequency operation.

8.6 Auto Mode Function

Using remote control to choose auto mode, under which the set temperature can be adjusted in a
range of 17 - 30°c.

8.6.1 When entering auto mode, the A/C will choose cooling, heating or fan only according to the

difference between room temperature (TA) and set temperature (TS).

TA - TS Operation status

TA -TS > 1°c Cooling

-1°c ≤TA - TS≤+1°c Fan only
TA - TS < -1°c Heating

8.6.2 At auto mode, the indoor fan will choose auto fan in corresponding mode.

8.6.3 At auto mode, the vane action of indoor fan is the same as that of chosen mode.

8.6.4 Once a mode is chose, it will take 5 minutes after shutting off the compressor to re-choose

another mode according to the difference between room temperature and set temperature, or
you can re-choose mode when set temperature is changed.

8.7 Forced Operation Function

8.7.1 Forced operation is controlled by the switch on switch board and divided into forced cooling and

forced auto. Remote control doesn't work at forced operation control.

8.7.2 At forced operation status, all protection functions in general protection fore-mentioned apply.

8.7.3 At forced cooling mode, the compressor operates at a fixed frequency of F2=42HZ, indoor fan is

Breeze, anti-icing control and general current control of cooling outdoor unit work; forced
operation will transfer to auto mode whose set temperature is 24°c automatically after 30
minutes.

8.7.4 At forced auto mode, the remote control controls in a set temperature of 24°c.

8.8 Timer Function Requirement

8.8.1 The maximum length of timer is 24 hours and the minimum resolving power is 15 minutes.

8.8.2 Timer on function: first turn off the A/C, the A/C will be automatically on at the set time.

8.8.3 Timer off function: first turn on the A/C, the A/C will be automatically off at the set time.

8.8.4 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.

8.8.5 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.

8.8.6 Timer function execution is applicable upon one operation only.

8.8.7 Timer error is less than 1 min/h.

Beta Glory R407c SERIES

1. Features 158

2. Specification 159

3. Dimensions 160

4. Refrigeration cycle diagram 163

5. Operation limits 164

6. Wiring diagram 165

7. Troubleshooting 169

8. Electronic function 169

157