Date post: | 29-Oct-2015 |
Category: |
Documents |
Upload: | sotiris-ioannou |
View: | 872 times |
Download: | 34 times |
of 359
7/15/2019 Midea 2005 Split Service Manual
1/358
CONTENTS1. DIAGNOSTIC CHART 12. The service rules of the R407C(R410a) product 53. BRIGHT STAR SERIES 84. BRIGHT ECO SERIES 45
5. GLORY (ECO)STAR SERIES 656. GLORY GIANT 1 977. GLORY GIANT 2 1158. LIGHT STAR SERIES 1279. CUTE STAR SERIES 13910. Beta GLORY R407 15711. AC INVERT SERIES 17812. MULTI INVERTER ECO 19713. Multi-system 1 to 2 214
14. Multi-system 1 to 3 22815. Alfa Glory H series (R410A) 24416. DC inverter(R410A) 27617. F1 STAR SERIES 30518. Alfa Glory H series 330
7/15/2019 Midea 2005 Split Service Manual
2/358
AFLA GLORY SERIES (R410A)
Contents
1. Features 245
2. Specification..246
3. Dimensions.. 249
4. Refrigeration cycle diagram252
5. Pressure table..253
6. Capacity table...256
7. Wiring diagram..261
8. Electronic function....265
9. Troubleshooting.273
10. Characteristic of temp. sensor278
7/15/2019 Midea 2005 Split Service Manual
3/358
1.Features
1.1 Compact design
1.2 High efficiency and quiet operation
1.3 A class energy level
245
7/15/2019 Midea 2005 Split Service Manual
4/358
2.SpecificationModel MSH-07CRN1 MSH-07HRN1 MSH-09CRN1 MSH-09HRN1 MSH-12CRN1 MSH-12HRN1
Factor Model CE-KF20GW/N1Y-H CE-KFR20GW/N1Y-H CE-KF26GW/N1Y-H CE-KFR26GW/N1Y-H CE-KF36GW/N1Y-H CE-KFR36GW/N1
Power su l Ph-V-Hz 1 220-240V~ 50Hz 1 220-240V~ 50Hz 1 220-240V~ 50Hz 1 220-240V~ 50Hz 1 220-240V~ 50Hz 1 220-240V~
Ca aci t Btu/h 7000 7000 9000 9000 12000 12000
In ut W 640 640 820 820 1120 1120
Rated current A 2 8 2 8 3 6 3 6 5 0 5 0
Cooling
EER Btu/w h 11 3 2 11 3 2 11 3 2 11 3 2 11 3 2 11 3 2
Ca aci t Btu/h 8500 11000 15000
In ut W 690 890 1180
Rated current A 3 0 3 9 5 3
Heating
COP W/W 3 6 3 6 3 6
Moisture Removal L/h 0 7 0 7 1 0 1 0 1 2 1 2
Max in ut consum tion W 850 1000 1000 1200 1550 1550
Max current A 3 8 4 5 4 5 5 3 10 10
Startin current A 15 15 22 22 30 30
Model PA82X1C-4DZ2 PA82X1C-4DZ2 PA108X1C-4FT PA108X1C-4FT PA145X2C-4FT PA145X2C-4FT
T e Rotar Rotar Rotar Rotar rotar rotar
Ca aci t Btu/h 6680 6680 8870 8870 12000 12000
In ut W 675 675 890 890 1200 1200
Rated current RLA A 3 11 3 11 4 07 4 07 5 6 5 6
Locked rotor Am LRA A 15 0 15 0 21 7 21 7 29 9 29 9
Thermal rotector UP3QE0591-T71 UP3QE0591-T71 UP3QE0591-T61 UP3QE0591-T61 UP3RE0591-T56 UP3RE0591-T56
Ca acitor uF 25 25 25 25 35 35
Compressor
Refri erant oil ml 350 350 330 330 480 480
Model RPG13H RPG13H RPG13H RPG13H RPG20D RPG20D
In ut W 36 5 36 5 36 5 36 5 51 5 51 5
Ca acitor uF 1 2 1 2 1 2 1 2 1 5 1 5
Indoor fan motor
S eed hi/mi/lo r/min 1050/9200/820 1050/9200/820 1200/950/850 1200/950/850 1250/1000/800 1250/1000/800
Number of rows 2 2 2 2 2 2
Fin t e code H dro hil ic aluminium H dro hilic a lum inium H dro hilic a luminium H dro hilic a luminium H dr0 hiliC H dr0 h il iC
Tubeoutside dia and t e mm 7 inner roove tube 7 inner roove 7 inner roove 7 inner roove 7 inner roove 7 inner roove
Indoor coil
Number of circuits 2 2 2 2 2 2
Indoor air flow Hi/Mi/Lo m3/h 450/400/350 450/400/350 500/460/410 500/460/410 680/520/420 680/520/420
Indoor noise level Hi/Mi/Lo dB A 34/32/30 34/32/30 36/34/32 36/34/32 39/33/28 39/33/28
Dimension W *H*D mm 750*250*205 750*250*205 750*250*205 750*250*205 815*280*215 815*280*215
Packin W*H*D mm 830X285X335 830X285X335 830X285X335 830X285X335 915X290X360 915X290X360
Indoor unit
Net/Gross wei ht K 8/10 8/10 8/10 8/10 10/12 10/12
Model YDK24-6T YDK24-6T YDK24-6F YDK24-6F YDK36-6 YDK36-6
In ut W 56 56 56 56 68 68
Ca acitor uF 2 5 2 5 2 5 2 5 2 5 2 5
Outdoor fan motor
S eed r/min 800 800 800 800 900 900
Number of rows 2 2 2 2 2 2
Fin t e code Unh dro hilic aluminium H dro hilic aluminium Unh dro hilic H dro hilic aluminium Unh dro hilic H dro hilic
Tubeoutside dia and t e mm 7 inner roove tube 7 inner roove tube 7 inner roove tube 7 inner roove tube 9 53inner roove 9 53inner roove
Coi l len thx hei htx width mm 750x508x26 74 750x508x26 74 810x508x26 74 810x508x26 74 680x550x44 680x550x44
Outdoor coil
Number of circuits 2 2 2 2 2 2
Outdoor air flow m3/h 1500 1500 1800 1800 1900 1900
Outdoor noiselevel dB A 49 49 50 50 52 52
Dimension W*H*D mm 700X535X235 700X535X235 780X540X250 780X540X250 760X590X285 760X590X285
Packin W*H*D mm 815X580X325 815X580X325 910X575X335 910X575X335 890X655X360 890X655X360
Outdoor unit
Net/Gross wei ht K 31/34 32/35 36/39 37/40 41/45 41 5/45 5
Refri erant t e R410A 800 820 900 920 1160 1170
Desi n ressure MPa 4 2 4 2 4 2 4 2 4 2 4 2
Li uid side/ Gas side mm inch 6 35/9 53 6 35/9 53 6 35/9 53 6 35/9 53 6 35/12 7 6 35/12 7
Max refri erant i e len th m 10 10 10 10 10 10
Refrigerant piping
Max difference in level m 5 5 5 5 5 5
Connection wirin No No No No No No
Plu t e 16A 16A 16A 16A 16A 16A
Thermostat t e Electrolic control Electrolic control Electrolic control Electrolic control Electrolic control Electrolic control
O eration tem 17-30 17-30 17-30 17-30 17-30 17-30
Ambient tem 18~-45 -7 -~ 45 18~-45 -7 -~ 45 18~-45 -7 -~ 45
A lication area m2 10-14 10-14 14-21 14-21 18-26 18-26
Qt er20 /40 /40'HQ set 128/268/296 128/268/296 113/252/276 113/252/276 92/195/228 92/195/228
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
7/15/2019 Midea 2005 Split Service Manual
5/358
3.Dimensions
3.1 Indoor unit
MSH-07CRN1, MSH-07HRN1, MSH-09CRN1, MSH-09HRN1
3.2 Indoor unit
MSH-12CRN1, MSH-12HRN1
247
7/15/2019 Midea 2005 Split Service Manual
6/358
3.4 Outdoor unit
MSH-07CRN1, MSH-07HRN1
3.5 Outdoor unit
MSH-09CRN1, MSH-09HRN1
248
7/15/2019 Midea 2005 Split Service Manual
7/358
3.6 Outdoor unit
MSH-12CRN1, MSH-12HRN1
530
315
290
750
110
62
590
285
249
7/15/2019 Midea 2005 Split Service Manual
8/358
4.Refrigeration cycle diagram
250
7/15/2019 Midea 2005 Split Service Manual
9/358
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 25C 30C 35C 40C 45C 50C
21C D
15C W
Pressure
( kg/cm2
)6.2 6.8 7.2 8.0 8.5 9.5
24C D
17C W
Pressure
( kg/cm2
)6.3 6.5 7.5 8.0 8.7 9.5
27C D
19C W
Pressure
( kg/cm2 ) 6.1 6.9 7.7 8.2 9.1 10.0
32C D
23C 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
ConditionsPressure 25C 30C 35C 40C 45C 50C
21C D15C W Pressure( kg/cm2
) 6.2 6.8 7.2 8.0 8.5 9.5
24C D
17C W
Pressure
( kg/cm2
)6.3 6.5 7.5 8.0 8.7 9.5
27C D
19C W
Pressure
( kg/cm2
)6.1 6.9 7.7 8.2 9.1 10.0
32C D
23C W
Pressure
( kg/cm2
)
7.0 7.3 7.8 8.3 9.2 10.1
Heating mode OUTDOOR CONDITIONS
Indoor Conditions Pressure12C D
11C W
7C D
6C W
0C D
-1C W
-4C D
-6C W
-7C D
-9C W
-15C D
-xC W
15CPressure
( kg/cm2
)24.0 23.0 21.5 21.0 20..5 /
18CPressure
( kg/cm2
)24.6 23.5 23.0 22.6 20.8 /
20CPressure
( kg/cm2
)25.0 23.8 24.0 23.0 21.0 /
22CPressure
( kg/cm2
)25.3 24.6 24.5 23.8 21.7 /
251
7/15/2019 Midea 2005 Split Service Manual
10/358
5.3 MSH-09CRN1
Cooling mode Outdoor temperature (Dry bulb temp)Indoor Conditions Pressure 25C 30C 35C 40C 45C 50C
21C D15C W
Pressure( kg/cm
2)
7.8 8.1 8.4 9.0 9.3 10.0
24C D
17C W
Pressure
( kg/cm2
)7.9 8.2 8.7 9.0 9.5 10.1
27C D
19C W
Pressure
( kg/cm2
)8.0 8.5 9.2 9.9 10.2 10.8
32C D
23C 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 25C 30C 35C 40C 45C 50C
21C D
15C W
Pressure
( kg/cm2
)7.8 8.1 8.4 9.0 9.3 10.0
24C D
17C W
Pressure
( kg/cm2
)7.9 8.2 8.7 9.0 9.5 10.1
27C D
19C W
Pressure
( kg/cm2
)8.0 8.5 9.2 9.9 10.2 10.8
32C D
23C W
Pressure
( kg/cm2
)
8.8 9.1 9.2 10.0 10.5 11.2
Heating mode OUTDOOR CONDITIONS
Indoor Conditions Pressure12C D
11C W
7C D
6C W
0C D
-1C W
-4C D
-6C W
-7C D
-9C W
-15C D
-xC W
15CPressure
k /cm2
26.5 25.0 22.0 21.5 20.5 /
18CPressure
k /cm2
27.0 26.0 23.5 22.5 20.8 /
20CPressure
k /cm2
27.5 26.5 25.0 23.0 21.0 /
22CPressure
228.5 27.0 25.5 23.9 21.5 /
252
7/15/2019 Midea 2005 Split Service Manual
11/358
5.5 MSH-12CRN1
Cooling mode Outdoor temperature (Dry bulb temp)Indoor Conditions Pressure 25C 30C 35C 40C 45C 50C
21C D
15C W
Pressure
( kg/cm2
)8.4 8.5 8.8 8.9 9.4 9.9
24C D
17C W
Pressure
( kg/cm2
)8.6 8.8 9.2 9.4 10.0 10.4
27C D
19C W
Pressure
( kg/cm2
)8.8 9.2 9.4 9.8 10.3 10.9
32C D
23C 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 25C 30C 35C 40C 45C 50C
21C D
15C W
Pressure
( kg/cm2
)8.4 8.5 8.8 8.9 9.4 9.9
24C D
17C W
Pressure
( kg/cm2
)8.6 8.8 9.2 9.4 10.0 10.4
27C D
19C W
Pressure
( kg/cm2
)8.8 9.2 9.4 9.8 10.3 10.9
32C D
23C W
Pressure
( kg/cm2
)
9.2 9.6 9.9 10.4 10.8 11.2
Heating mode OUTDOOR CONDITIONS
Indoor Conditions Pressure12C D
11C W
7C D
6C W
0C D
-1C W
-4C D
-6C W
-7C D
-9C W
-15C D
-xC W
15CPressure
k /cm2
27.4 25.9 22.2 21.4 20.0 /
18CPressure
k /cm2
29.8 27.2 23.8 22.0 21.1 /
20CPressure
k /cm2
30.2 29.1 24.2 23.6 22.1 /
22CPressure
232.4 30.1 25.4 24.0 22.7 /
253
7/15/2019 Midea 2005 Split Service Manual
12/358
6. Capacity table
6.1 MSH-07CRN1
SUMMER OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25C 30C 35C 40C 45C 50C
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 1.0721C D
15C WInput 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 1.1524C D
17C WInput 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 1.2827C D
19C WInput 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 1.5332C D
23C WInput kW. 0.53 0.65 0.69 0.73 0.83 0.88
6.2 MSH-07HRN1
SUMMER OUTDOOR TEMPERATURE DRY
Indoor
Conditions25C 30C 35C 40C 45C 50C
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 1.0721C D
15C WInput 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 1.1524C D
17C WInput 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 1.2827C D
19C WInput 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 1.5232C D23C W
Input kW. 0.58 0.64 0.66 0.73 0.80 0.86
254
7/15/2019 Midea 2005 Split Service Manual
13/358
WINTER OUTDOOR CONDITIONS
Indoor
Conditions
12C D
11C W
7C D
6C W
4C D
3C W
0C D
-1C W
-4C D
-6C W
-7C D
-8C W
Capacity kW 3.01 2.73 2.47 1.76 1.65 1.5815CInput 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 1.4118C
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 1.3320C
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 1.1722C
Input kW. 0.83 0.68 0.65 0.60 0.56 0.51
6.3 MSH-09CRN1
SUMMER OUTDOOR TEMPERATURE DRY
Indoor
Conditions25C 30C 35C 40C 45C 50C
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 1.3621C D
15C WInput 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 1.5724C D
17C WInput 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 1.6327C D
19C WInput 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 1.8532C D
23C WInput kW. 0.64 0.80 0.88 0.98 1.03 1.10
255
7/15/2019 Midea 2005 Split Service Manual
14/358
6.4 MSH-09HRN1
SUMMER OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25C 30C 35C 40C 45C 50C
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 1.3621C D
15C WInput 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 1.5724C D
17C WInput 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 1.6327C D
19C WInput 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 1.8532C D
23C WInput kW. 0.65 0.80 0.86 0.95 0.99 1.08
WINTER OUTDOOR CONDITIONS
Indoor
Conditions
12C D
11C W
7C D
6C W
4C D
3C W
0C D
-1C W
-4C D
-6C W
-7C D
-8C W
Capacity kW 3.75 3.38 3.02 1.97 1.59 1.5215C
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 1.4918C
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 1.5020C
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 1.4222C
Input kW. 1.06 0.93 0.82 0.77 0.71 0.65
256
7/15/2019 Midea 2005 Split Service Manual
15/358
6.5 MSH-12CRN1
SUMMER OUTDOOR TEMPERATURE DRY
Indoor
Conditions
25C 30C 35C 40C 45C 50C
Total capacity kW 3304 3198 3921 2856 2787 2684
Sensitive capacity kW 2607 2497 2411 2304 2242 211121C D
15C WInput kW. 907 1006 1096 1184 1259 1457
Total capacity kW 3683 3511 3339 3166 3066 2960
Sensitive capacity kW 2938 2790 2745 2580 2470 235924C D
17C WInput kW. 926 1035 1127 1230 1278 1380
Total capacity kW 3896 3718 3646 3387 3235 3232
Sensitive capacity kW 3076 2938 2856 2690 2580 247027C D
19C WInput kW. 943 1058 1120 1265 1322 1437
Total capacity kW 4199 4009 3850 3614 3541 3370
Sensitive capacity kW 3098 2990 2745 2607 255232C D
23C WInput kW. 977 1090 1190 1310 1368 1495
2900
6.6 MSH-12HRN1
SUMMER OUTDOOR TEMPERATURE DRY
Indoor
Conditions25C 30C 35C 40C 45C 50C
Total capacity kW 3276 3187 3105 2821 2746 2621
Sensitive capacity kW 2567 2457 2413 2287 2210 208721C D
15C WInput kW. 890 1010 1082 1188 1243 1337
Total capacity kW 3663 3503 3315 3148 3076 2932
Sensitive capacity kW 2918 2766 2725 2557 2453 233424C D
17C WInput kW. 915 1033 1121 1228 1278 1367
Total capacity kW 3860 3700 3626 3371 3215 3125
Sensitive capacity kW 3039 2913 2832 2645 2567 241927C D
19C WInput kW. 944 1048 1120 1253 1312 1426
Total capacity kW 4215 4100 3845 3601 3501 3313
Sensitive capacity kW 3120 2939 2891 2715 2589 250332C D23C W
Input kW. 969 1088 1189 1302 1349 1455
257
7/15/2019 Midea 2005 Split Service Manual
16/358
WINTER OUTDOOR CONDITIONS
Indoor
Conditions
12C D
11C W
7C D
6C W
4C D
3C W
0C D
-1C W
-4C D
-6C W
-7C D
-8C W
Capacity kW 4446 4264 4132 3838 3335 30515CInput kW. 1141 1106 1059 1035 895 812
Capacity kW 4380 4248 3954 3761 3258 294818C
Input kW. 1188 1153 1142 1082 953 918
Capacity kW 4261 4153 3877 3683 3189 287120C
Input kW. 1224 1180 1129 1082 976 941
Capacity kW 4106 3989 3761 3567 3045 287622C
Input kW. 1259 1212 1153 1106 1000 836
258
7/15/2019 Midea 2005 Split Service Manual
17/358
7/15/2019 Midea 2005 Split Service Manual
18/358
7.2 Wiring diagram
7.2.1 Cooling only
7.2.1.1 MSH-07CRN1, MSH-09CRN1
1 2 3 4 5
1 2 3 4 5
2 1
2 1
2 1
2 1
3 51
3 51
3 2 1
3 2 1
3
1
1
1 4
DISPLAY
BOARD
CN6 CN4 CN12 CN2 CN3
CN11RED
BLUE
BLACK
CN1
TRANSFORMER
CN5
POWER SUPPLY INDO OR MOTOR
STEP MOTOR
R
OOM
TE
MPERAT
URE
SE
NSOR
PI
PE
TEM
PERATUR
E
SEN
SOR
JX1
INDOOR UNIT
TO OUTDOOR UNIT
Y/G
1 2(N) 3 4
BROWN
Y/G
COMPRESSOR R ELAY
CN15
8
765
4321
4
C N7 CN16
21
21
21
21
SW2
WATER SWITCH
COMPRESSOR
CAPACITOR
RE
OTOOR I T
OEROA
REA
Y G
COMPRESSOR
S
C
E
R
AC
RE
AC
I NDOOR UNIT
FAN
CAPACITOR
RED
Y G
FAN
MOTOR
Y G
UE
AC
RED
260
7/15/2019 Midea 2005 Split Service Manual
19/358
7.2.1.2 MSH-12CRN1
1 2 3 4 5
1 2 3 4 5
2 1
2 1
2 1
2 1
3 51
3 51
3 2 1
3 2 1
3
1
1
1 4
DISPLAY
BOARD
CN6 CN4 CN12 CN2 CN3
CN11RED
BLUE
BLACK
CN1
TRANSFORMER
CN5
POWER SUPPLY INDO OR MOTOR
STEP MOTOR
R
OOM
TE
MPERAT
URE
SE
NSOR
PI
PE
TEM
PERATUR
E
SEN
SOR
JX1
INDOOR UNIT
TO OUTDOOR UNIT
Y/G
1 2(N) 3 4
BROWN
Y/G
COMPRESSOR R ELAYCN15
8
765
4321
4
C N7 CN16
21
21
21
21
SW2
WATER SWITCH
261
7/15/2019 Midea 2005 Split Service Manual
20/358
7.2.2 Heating/cooling
7.2.2.1 MSH-07HRN1, MSH-09HRN1
1 2 3 4 5
1 2 3 4 5
2 1
2 1
2 1
2 1
3 51
3 51
3 2 1
3 2 1
2
1
1 4
DISPLAY
BOARD
CN6 CN4 CN12 CN2 CN3
CN11RED
BLUE
BLACK
CN1
TRANSFORMER
CN5
POWER SUPPLY INDO OR MOTOR
STEP MOTOR
R
OOM
TE
MPERAT
URE
SE
NSOR
PI
PE
TEM
PERATUR
E
SEN
SOR
JX1
INDOOR UNIT
TO OUTDOOR UNIT
Y/G
1 2(N) 3 4
BROWN
Y/G
COMPRESSOR R ELAYCN15
8
765
4321
4
C N7 CN16
21
21
21
21
SW2WATER SWITCH
CN13
1 21
1
2
11
262
7/15/2019 Midea 2005 Split Service Manual
21/358
7.2.2.2 MSH-12HRN1
1 2 3 4 5
1 2 3 4 5
2 1
2 1
2 1
2 1
3 51
3 51
3 2 1
3 2 1
2
1
1 4
DISPLAY
BOARD
CN6 CN4 CN12 CN2 CN3
CN11RED
BLUE
BLACK
CN1
TRANSFORMER
CN5
POWER SUPPLY
INDO OR MOTOR
STEP MOTOR
R
OOM
TE
MP
ERAT
URE
SE
NS
OR
PI
PE
TEM
PER
ATUR
E
SEN
SOR
JX1
INDOOR UNIT
TO OUTDOOR UNIT
Y/G
1 2(N) 3 4
BROWN
Y/G
COMPRESSOR R ELAYCN15
8
765
4321
4
C N7 CN16
21
21
21
21
SW2WATER SWITCH
CN13
1 21
1
2
11
263
7/15/2019 Midea 2005 Split Service Manual
22/358
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: -7C~+43C
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
I3sec: Self-protection amp of compressor, continue three seconds until turns off the compressor.
I5MIN: Self-protection amp of compressor, continue five minutes until turns off the compressor.
IFAN: Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower wind.
IRESTORE: Amp self-protection return value
THDEFROST: High wind, defrosting temperature difference
TMDEFROST: Middle wind, defrosting temperature difference
TLDEFROST: 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 receivingTesting 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
7/15/2019 Midea 2005 Split Service Manual
23/358
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 cant 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 cant returns to normal operation automatically.
8.4.5 The current protection of the compressor
Condition Indoor fan Compressor Outdoor fan Remark
I< IRESTORE On On On
On On Off Heating modeIRESTORE
7/15/2019 Midea 2005 Split Service Manual
24/358
Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. )
Condition
Temp. Time
Compressor Outdoor fan
T> TE6 On OnEvaporatorTemp. up
T< TE6 >5 Minutes Off Off
T> TE5 On OnEvaporatorTemp. 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+2LOW
BREEZE
ON 6minutes
OFF 4minutes
2 TS TA
7/15/2019 Midea 2005 Split Service Manual
25/358
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 OffRoom temp. up
TTs+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
7/15/2019 Midea 2005 Split Service Manual
26/358
8.8.6 Indoor evaporator high-temperature protection at heating mode
Condition
T= Indoor exchanger temp.
Compressor Outdoor fan
T
7/15/2019 Midea 2005 Split Service Manual
27/358
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).
TATS Operation mode
TATS>2 Cooling
-1 TA -TS+2 Fan-only
TA-TS
7/15/2019 Midea 2005 Split Service Manual
28/358
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
7/15/2019 Midea 2005 Split Service Manual
29/358
8.16 Models and Parameters
Model MSH-07CRN2 MSH-07HRN2 MSH-09CRN2 MSH-09HRN2 MSH-12CRN2 MSH-12HRN2
I3SEC 7.5A 7.5A 10.0A 10.0A 12.0A 12.0A
I5MIN 6.2A 6.2A 7.5A 7.5A 8.5A 8.5A
IFAN 5.2A 5.2A 5.5A 5.5A 7.5A 7.5A
IRESTORE 4.2A 4.2A 4.5A 4.5A 6.5A 6.5A
IDEFROST 3.2A 3.5A 5.0A
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
THDEFROST 17C 17C 20C
TMDEFROST 18C 18C 23C
TLDEFROST 19C 19C 26C
271
7/15/2019 Midea 2005 Split Service Manual
30/358
9.Troubleshooting
9.1 Display board
1 2 3 4 5 6InfraredSignalReceiver
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
7/15/2019 Midea 2005 Split Service Manual
31/358
9.3 Diagnostic Chart
9.3.1 After energizing, no indicator is lighted and the air conditioner cant be operated.
After energizing, the air conditionercant 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 if
AC14.5V exists at the secondary coil of transformer.
The transformer is defective. Indoor PCB is defective
After changing indoor fan motor, check if the failure releases. Indoor PCB is defective
After changing Indoor PCB, check if the failure releases.
Power supply circuit has problems.
Resetting phenomenon often occurs during operation.
273
7/15/2019 Midea 2005 Split Service Manual
32/358
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 5Hz9.3.3.1 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
NoYes
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
NoYes
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
After 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 cant detect over-zero signal. When such failure occurs, the main
control board must have fault.
274
7/15/2019 Midea 2005 Split Service Manual
33/358
275
10. Characteristic of temp. sensor
Temp. Resistance K Temp. Resistance K Temp. Resistance K
-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
7/15/2019 Midea 2005 Split Service Manual
34/358
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
7/15/2019 Midea 2005 Split Service Manual
35/358
229
1.Features
1.1 Compact design
1.2 High efficiency and quiet operation
7/15/2019 Midea 2005 Split Service Manual
36/358
230
2.Specification
Model MS3G-30HRN2 MS3G-27HRN2
Power su l 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. in ut consum tion W 2200+1800 2200+1800
Max. current A 10.0 +8.2 10.0 +8.2
Startin 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
Refrigerant oil ml 750; 480 750; 480
Model RPG13H RPG13H
Input W 36.5 36.5
Capacitor uF 1.2F/450V 1.2F/450V
Indoor fan motor
Speed(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 750250188 750250188
Packing mm 830X336X280 830X336X280Indoor unit
Net/Gross weight Kg 8.5/10 8.5/10
Model YDK50-4G1 YDK50-4G1
Input W 107Wx2 107Wx2
Capacitor uF 4uFx2 4uFx2
Outdoor fan motor
Speed 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 983X915X425Outdoor unit
Net/Gross weight Kg 81/88
Refri erant t e R407C 1470+820 R407C 1470+820Desi n ressure MPa 2.6 2.6
Liquid side/ Gas mm 6.35/9.53(A
Max. refrigerant m 15(each unit) 15(each unit)Refrigerant piping
Max. difference in m 5 (each unit) 5 (each unit)
O eration tem 17~30 17~30
Ambient tem -7~45 -7~45
A lication area m2 (14-21)x2,18-26 (14-21)x2,18-26
7/15/2019 Midea 2005 Split Service Manual
37/358
231
3.Dimensions
3.1 Indoor unit
3.2 Outdoor unit
7/15/2019 Midea 2005 Split Service Manual
38/358
232
4.Refrigeration cycle d iagram
1 drive 3 system is made up of one 1 drive 1 system and one 1 drive 2 system.
PMV1
1 drive 2 system
SV1Primary four-way valve SV2Secondary four-way valve PMV1PMV2Electronic expansive valve
T1T2Indoor pipe temperature sensor
condenser
four-way valveevaporator
compressor
1 drive 1 system
PMV2SV2 SV1
21T2
T1
refrigeration distributor
Compressor
7/15/2019 Midea 2005 Split Service Manual
39/358
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
7/15/2019 Midea 2005 Split Service Manual
40/358
234
6.Wiring diagram
Indoor unit
Outdoor unit
7/15/2019 Midea 2005 Split Service Manual
41/358
7/15/2019 Midea 2005 Split Service Manual
42/358
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
7/15/2019 Midea 2005 Split Service Manual
43/358
237
7.4 Failure and Related Causes of Remote Controller
Before requesting service or maintenance, please check the following itemsChanging 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
changedCheck 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 darkSymptom 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 doesnt 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 doesnt
function
Check the remote display The button is locked
7/15/2019 Midea 2005 Split Service Manual
44/358
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
C8.1.4 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 temperatureTE3: 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.
7/15/2019 Midea 2005 Split Service Manual
45/358
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 protection8.4.5 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 cant 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 OnTemp. up
TATs On OnTemp. down
TA
7/15/2019 Midea 2005 Split Service Manual
46/358
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 indehumidifying 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 OffRoom temp. up
TA
7/15/2019 Midea 2005 Split Service Manual
47/358
241
8.9 Defrosting operation (Available for heating only).
8.9.1 Defrosting condition:
When T320.
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 settemp. (TS).
TATS Operation mode
TATS>2 Cooling
-1 TA TS+2 Fan-only
TATS
7/15/2019 Midea 2005 Split Service Manual
48/358
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.
7/15/2019 Midea 2005 Split Service Manual
49/358
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
7/15/2019 Midea 2005 Split Service Manual
50/358
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
7/15/2019 Midea 2005 Split Service Manual
51/358
1.Features
1.1 Compact design
1.2 High efficiency and quiet operation
215
7/15/2019 Midea 2005 Split Service Manual
52/358
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+6Heating
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 Rotary Rotary
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
Refrigerant oil ml 400 480
Model RPG13H RPG13H
Brand WeiLing WeiLing
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 750250188 750250188
Packing (W*H*D) mm 830X336X280 830X336X280Indoor unit
Net/Gross weight Kg 8.5/10 8.5/10
Model YDK94-6A YDK170-4C
Input W 154 290
Capacitor uF 4 5Outdoor fan motor
Speed r/min 900/670 1110/810
Outdoor air flow m3/h 1900 2070
Outdoor noise level dB(A) 58 58Dimension(W*H*D) mm 895X655X345 895X655X345
Packing (W*H*D) mm 1050X720X470 1050X720X470Outdoor unit
Net/Gross weight Kg 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 15Refrigerant 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
Qtyper 20 /40 /40'HQ set 54/116/132 54/116/132
216
7/15/2019 Midea 2005 Split Service Manual
53/358
3.Dimensions
3.1 Indoor unit
3.2 Outdoor unit
217
7/15/2019 Midea 2005 Split Service Manual
54/358
4.Refrigeration cycle diagram
218
7/15/2019 Midea 2005 Split Service Manual
55/358
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 airtemperature conditions. However, excludes the initial pull-down stage.
219
7/15/2019 Midea 2005 Split Service Manual
56/358
6.Wiring diagram
Indoor unit
Outdoor unit
5
1
3A 3
7-9
7-9
A
A 1
.
3--4
A 1
A
1 2
FROM INDOOR
UNIT(A)
Y&G
RT3 RT3A
8
9
8
9
(WHITE)
(BLACK)
RT4
7
7
(RED)
WIRING
DIAGRAM
COM A
. B
AC POWER
T3
COMPREOR
FAN MOTOR
OUTDOOR FAN
CAPACITOR
4-WAY VALVE
OUTDOOR COMPREOR
CAPACITOR
MIDDLE TERMINAL
6-WAY TERMINAL
A&B SYSTEM PIPE
TEMPERATURE SENSOR
CONNECTORS
TRANSFORMER
CONNECTORS
T2 4-WAY TERMINAL
RT4A&B SYSTEM ROOM
TEMPERATURE SENSOR
PARTCODE
S.V A
FROM INDOOR
UNIT(B)
COMP
VALVE
FANN
220V 50Hz
6
OUTDOOR UNIT
P1
P2
P3
P4P5
P6
P7
P8 P9 P10 P11 P12 P13 P 14
CN2 CN3
BCOMP
ACOMP
CN7
CN8
RED
BLACK
RED RED
RED BLUE
BLACK
RED
CAP2
CAP3
CAP2 CAP3
T4
T5
1 2
SW1
A COMP BCOMP RELAY
BLACKYELLOW
C
S R
RED
BLACK
BLUE
C
S R
RED
BLACK
BLUE
Y&G Y&G
Y&G
BLACK
BLACKBLACK
BLACK
BLACK
BLUE
WHITE
RED
BLACK
BLUE
WHITE
COMP
VALVE
FANN Y&G Y&G
1 2
ON
1LEAVEING
FACTORY
EXPLANATION
1
ON
2RAPIDLY
CHECK
2
ON
3CHECK
ITSELF
N I N WI W
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
7/15/2019 Midea 2005 Split Service Manual
57/358
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
7/15/2019 Midea 2005 Split Service Manual
58/358
8 Electronic function
8.1 Electric Control working environment
8.1.1 input voltage: 175~253V
8.1.2 Input power frequency:50Hz8.1.3 Ambient temperature: -7C~+43C
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 temperatureTE2: 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
7/15/2019 Midea 2005 Split Service Manual
59/358
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 disconnection8.4.4 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 cant 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 OnTemp. up
TA Ts On OnTemp. down
TA65, 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
7/15/2019 Midea 2005 Split Service Manual
60/358
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 mode8.8.1 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 OffRoom temp. up
TATs+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 modeCondition
TE
Indoor fan speed
TE
7/15/2019 Midea 2005 Split Service Manual
61/358
8.8.6 Indoor evaporator high-temperature protection under heating mode
Condition Compressor Outdoor fan
TE
7/15/2019 Midea 2005 Split Service Manual
62/358
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 speedCooling mode
T413 Low speedHeating mode
T4
7/15/2019 Midea 2005 Split Service Manual
63/358
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
7/15/2019 Midea 2005 Split Service Manual
64/358
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
7/15/2019 Midea 2005 Split Service Manual
65/358
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.
7/15/2019 Midea 2005 Split Service Manual
66/358
199
2. Specification
Model M2OA-18HRIN2
Indoor unit 7000Btu/h 9000Btu/h 12000Btu/h
Power supply Ph-V-Hz 1Ph, 220-240V~, 50HzCapacity 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-13.8ACooling
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-13.5AHeating
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/68TF/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 2113.37 2113.37 2113.37
Fin spacing mm 1.5 1.5 1.3
Fin type (code)Hydrophilic
aluminium
Hydrophilic
aluminium
Hydrophilic
aluminium
Tube outside dia.and type mm7, innergroove
tube
7, innergroove
tube
7, innergroove
tube
Coil length x height x width mm 57825227.34 57825227.34 63531527.34
Indoor
coil
Number of circuits 2 2 2
7/15/2019 Midea 2005 Split Service Manual
67/358
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*275Indoor
unitNet/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 25.422
Fin spacing mm 1.7
Fin type (code) Hydrophilic aluminium
Tube outside dia.and type mm 9.53 innergroove trube
Coil length x height x width mm 77666022
Outdoorcoil
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 975X772X405Outdoor
unitNet/Gross weight kg 71/74
Refrigerant type R407C g 2200
Design pressure(Hi/Lo) MPa 2.8/1.2
Liquid side/ Gas side mm 6.35/9.53 6.35/9.53 6.35/12.7
Max. refrigerant pipe length m 10 10 10Refrigera
nt pipingMax. difference in level m 5 5 5
Connection wiring No
Plug type No
Controller Remote
Operation temp 17~30Ambient 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: 27CDB, 19CWB; Outdoor temp: 35CDB; Equivalent ref. Piping: 8m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20CDB; Outdoor temp: 7CDB, 6CWB; 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.
7/15/2019 Midea 2005 Split Service Manual
68/358
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: 13.8ACooling
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: 13.5AHeating
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/68TF/T-68 750 ml
Model RPG13H RPG13H RPG13CBrand 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 2113.37 2113.37 2113.37
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 7, innergroove tube 7, innergroove tube7, innergroove tube
7/15/2019 Midea 2005 Split Service Manual
69/358
202
Coil length x height x width mm 57825227.34 57825227.34 63531527.34
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*195Packing (W*H*D) mm 830*336*280 830*336*280 915*360*275
Indoor
unitNet/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 25.422
Fin spacing mm 1.7
Fin type (code) Hydrophilic aluminium
Tube outside dia.and type mm 9.53 innergroove trube
Coil length x height x width mm 77666022
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 975X772X405Outdoor
unitNet/Gross weight Kg 72/76
Refrigerant type R407C g 2400
Design pressure(Hi/Lo) MPa 2.8/1.2
Liquid side/ Gas side mm 6.35/9.53 6.35/9.53 6.35/12.7
Max. refrigerant pipe length m 10 10 10Refrigera
nt pipingMax. difference in level m 5 5 5
Connection wiring No
Plug type NoController 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: 27CDB, 19CWB; Outdoor temp: 35CDB; Equivalent ref. Piping: 8m(horizontal)
2. Nominal heating capacities are based on the following conditions:
Indoor temp: 20CDB; Outdoor temp: 7CDB, 6CWB; Equivalent ref. Piping: 8m(horizontal)
3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from ananechoic room.
7/15/2019 Midea 2005 Split Service Manual
70/358
203
3 Dimensions
1. Indoor unit 7/9K
2. Indoor Unit 12K
3. Outdoor unit
7/15/2019 Midea 2005 Split Service Manual
71/358
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-pressureswitch 1
4-wayvalve
down part
condenser
3
capillary
capillary
filter
up part
oil separator
low-pressureswitch 2
low-pressure oil tank
capillary
dischargesensor
outdoor unit
inverter compressor
Refrigeration circuit drawing of inverter binary type
2
heat
exchanger
filter
heatexchanger
filter
high-pressure
switch 1
4-wayvalve
condenser
down part
3
capillary
capillary
filter
up part
oil separator
low-pressureswitch 2
low-pressure oil tank
capillary
dischargesensor
outdoor unit
inverter compressor
7/15/2019 Midea 2005 Split Service Manual
72/358
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.
7/15/2019 Midea 2005 Split Service Manual
73/358
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 34007000Btu/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 34009000Btu/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
7/15/2019 Midea 2005 Split Service Manual
74/358
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 22009000Btu/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 360012000Btu/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 32007000Btu/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
7/15/2019 Midea 2005 Split Service Manual
75/358
208
7. Wiring Diagram7.1 Indoor unit 7/9K
7.2 Indoor unit 12K
7/15/2019 Midea 2005 Split Service Manual
76/358
209
7.3 Outdoor unit M2OA-18HRIN2
Outdoor unit M3OA-27HRIN2
7/15/2019 Midea 2005 Split Service Manual
77/358
210
8. Electric Control Functions8.1 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 coiltemp., 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 users remote control signals.
Indoor unit Outdoor unit
T2B
T1T2Ts T3 T4T3
Fan Speed Pressure switch
Pressure switch
4-way valve
Fan Fan motor
Co Compressor
Swing motor EXV
1 T1 Indoor ambient temp.
2 T2 Indoor evaporator middle part temp3 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
7/15/2019 Midea 2005 Split Service Manual
78/358
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 prevent protection due to too big LRA when compressor starts, the outdoor control board begins
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 cant 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 cant 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, ifT365 for 3 minutes, the compressor will stop. When T352, the protection
is not valid.
When protection is released, the compressor restarts 3 minutes later.
Volt(V)
7/15/2019 Midea 2005 Split Service Manual
79/358
212
8.2.6 Temperature 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 0.054.95V, it think temperature sensor short/open
protection. The compressor, four-way valve and outdoor fan motor will stop and send malfunctionsignal to indoor units.
When the volt is resumed to the range 0.054.95V, 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-by2. When the compressor is in operation, the compressor operation frequency will be displayed on
the digital pipe.
3. : Defrosting
4. Under standing-by, displaywhen pre-heating and display 11. When pre-heating after
turning on the AC.
5. Under malfunction protection:
7/15/2019 Midea 2005 Split Service Manual
80/358
213
Display contents Malfunction or Protection
0 EEPROM Parameter Malfunction
No.1 Indoor unit Evaporator outlet temp. sensor malfunction
No.2 Indoor unit Evaporator outlet temp. sensor malfunction
No.3 Indoor unit Evaporator outlet temp. sensor malfunction
Outdoor temp. sensor malfunction
Compressor volt protection
Obligate
7 Outdoor inverter communication malfunction
0 Top temp. protection
High-pressure protection
Low-pressure protection
Compressor current protection
Module protection
Outdoor low-temperature protection
Condenser high-temperature protection
7 Obligate
7/15/2019 Midea 2005 Split Service Manual
81/358
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
7/15/2019 Midea 2005 Split Service Manual
82/358
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.
7/15/2019 Midea 2005 Split Service Manual
83/358
180
2. SpecificationModel 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/450VACIndoor 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 1000X355X265Indoor unit
Net/Gross weight Kg 8.5/11 11/14
Model YDK20-6g YDK25-6-3
Input W 70 75
Capacitor uF 2.5 2.5Outdoor 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 910X575X335Outdoor 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) 6.35/9.53 6.35/12.7
Max. refrigerant pipe length m 10 10Refrigerant piping
Max. difference in level m 5 5
Application 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.
7/15/2019 Midea 2005 Split Service Manual
84/358
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 TOSHIBA MIDEA TOSHIBA MIDEA TOSHIBA
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 460Air 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 63Outdoor 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*275Indoor 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*335Outdoor 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.
7/15/2019 Midea 2005 Split Service Manual
85/358
182
3. Dimensions
3.1 Indoor Unit(MSG-09HRI, MSG-07/09HRIN2)
3.2 Indoor Unit(MSG-12HR1)
7/15/2019 Midea 2005 Split Service Manual
86/358
183
3.3 Indoor Unit (MSG-12HRIN2)
3.4 Outdoor Unit
7/15/2019 Midea 2005 Split Service Manual
87/358
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
7/15/2019 Midea 2005 Split Service Manual
88/358
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 condi