Page 1
AS-09UR4SVETE5(TF5)
AS-12UR4SVETE5(TF5)
AS-18UR4SFATE5(TF5)
AS-24UR4SDBTE5(TF5)
Hisense Corporation
Page 2
Type of contents
1. OPERATION RANGE
2. INSTALLATION
3. REFRIGERANT FLOW DIAGRAM
4. ELECTRICAL DATA
5. CONTROL MODE
6. TROUBLE SHOOTING
7. CHECKING COMPONENTS
NOTE: The figure、size and parameter of the product may not be identical
with the service manual, please take the actual product as the standard.
Page 3
1.1.OPERATING
OPERATING
RANGE
RANGE
Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp
COOLING
Maximum
32℃ D.B./23℃ W. B. 43 ℃ D.B./26℃ W. B.
Minimum
21℃ D.B./15℃ W. B. 21 ℃ D.B./15℃ W. B.
HEATING
Maximum
27℃ D.B./18℃ W. B. 24 ℃ D.B./18℃ W.B .
Minimum
20℃ D.B/≤15℃ W.B -7 ℃ D.B./-8℃ W.B .
Page 4
22..INSTALLATION
INSTALLATION
1、How to choose an air conditioner（only for reference）：
a. Choice for reference: 170W/㎡for average rooms;
b. Choice for reference: 160-200W/㎡for small size offices;
c. Choice for reference: 220-350W/㎡for restaurants;
d. Choice for reference: 200-300W/㎡for entertaining venues;
e. Choice for reference: 220-280W/㎡for the top floor.
Note:1W = 3.412btu.
2、Indoor Unit:
2.1. Distance for the indoor unit:
Note: a.The wallboard must be smooth and straight, with its supporting force
of not less than 60 kg.
2.1 Install for the installation template:
Page 5
22..INSTALLATION
INSTALLATION
Note: The installation template should be installed level.
2.3. Drilling:
Note
：
The tool need to raise 5 degrees when drilling, so that the hole of the
indoor side will be higher than the outdoor side, the water can drain smoothly.
2.4 Bend the evaporator pipe:
Note: When you bend the evaporator pipe, you should use your right hand
hold the pipe tightly at bends, and then use the left hand bend the pipe slowly.
Page 6
22..INSTALLATION
INSTALLATION
3、Outdoor Unit:
3.1. The distance of the outdoor unit:
Note: The wallboard supporting force should be able to withstand four times
the weight of the outdoor unit, and not less than 180 kg.
3.2. Fix for the outdoor unit:
Note: The outdoor unit base must be fixed with the bolts to reduce vibration
and noise, if necessary the shock pad can be used.
4. The height difference and the connection pipe length:
bolt
Shock pad
Page 7
22..INSTALLATION
INSTALLATION
When install the unit, please follow the following principle:
4.1.The height difference between the indoor unit and the outdoor unit
should not exceed 5m;
4.2.The connection pipe length should be not less than 1m;
4.3.The longest connection pipe is 15m for the unit(Recommendation:
The longest connection pipe is 10m for 9K and 12K unit and 15m for 18K,24K
and 30K unit);
4.4. Normally, the connection pipe does not exceed 5m, if the connection
pipe exceed 5m, it should add some gas for the unit, the amount of the gas
that recharged is based on the diameter and length of the liquid pipe, and the
recharged gas Xg=(the liquid pipe length -5m)*(*sheet*g/m), for example, for
one heat pump single split air conditioner, if the diameter of the liquid pipe is
Ф9.53 , and the liquid pipe length is 7m, it means that it should charge
(7m-5m)*50g/m=100g gas for the unit refer to the following sheet:
The diameter for the
connection pipe(mm)
single split air
conditioner
Liquid pipe Gas pipe
cooling only
（g/m）
heat pump（g/
m）
Ф6.35
Ф9.53 or
Ф12.7
15 20
Ф6.35 or
Ф9.53
Ф15.88 or
Ф19.05
15 50
Page 8
33..REFRIGERANT
REFRIGERANT
FLOW
FLOW
DIAGRAM
DIAGRAM
3-1. Refrigerant flow diagram ：
CAPILLARY
COMPRESSOR
CHECK VALVE ASS'Y
CAPILLARY
CONDENSER
EVAPORATOR
OUTDOOR
INDOOR
出2
Page 9
33..REFRIGERANT
REFRIGERANT
FLOW
FLOW
DIAGRAM
DIAGRAM
3
Page 10
44..ELECTRICAL
ELECTRICAL
DAT A
DAT A
4-1.Electrical wiring diagrams
NOTE: YE/GN=YELLOW/GREEN, BU=BLUE, BN=BROWN, WH=WHITE, BK=BLACK, VT=VIOLET, OG=ORANGE,
RD=RED,BRN=BROWN,BLU=BLUE,BLK=BLACK,WHT=WHITE
INDOOR：
(1) AS-09UR4SVETE5(TF5) AS-12UR4SVETE5(TF5) （indoor）：
(2) AS-18UR4SFATE5(TF5) （indoor）：
Page 11
44..ELECTRICAL
ELECTRICAL
DAT A
DAT A
(3) AS-24UR4SDBTE5(TF5)（indoor）：
OUTDOOR
(1)AS-09UR4SVETE5(TF5) AS-12UR4SVETE5(TF5) （OUTDOOR）
Page 12
44..ELECTRICAL
ELECTRICAL
DAT A
DAT A
(2)AS-18UR4SFATE5(TF5) AS-24UR4SDBTE5(TF5)（OUTDOOR）
Page 13
44..ELECTRICAL
ELECTRICAL
DAT A
DAT A
4-2. Sensor parameter
1. THE PARAMETER OF OUTDOOR DISCHARGE TEMPERATURE SENSOR FOR COMPRESSOR::
（
R
0
=187.25K±6.3%；R
100
=3.77K±2.5K；B=3979±1%
）
T(℃) R(KΩ) V(v) DEC HEX T(℃) R(KΩ ) V(v) DEC HEX T(℃) R(KΩ) V(v) DEC HEX
-30 966.1 0.1014 5 5 26 55.46 1.3252 68 44 82 6.662 3.7507 191
BF
-29 910.3 0.1075 5 5 27 53.11 1.3678 70 46 83 6.446 3.7813 193
C1
-28 858 0.1139 6 6 28 50.86 1.4112 72 48 84 6.239 3.8111 194
C2
-27 809 0.1206 6 6 29 48.72 1.4552 74
4A
85 6.039 3.8404 196
C4
-26 763.1 0.1277 7 7 30 46.68 1.4997 76
4C
86 5.846 3.8691 197
C5
-25 720 0.1351 7 7 31 44.74 1.5446 79
4F
87 5.661 3.8970 199
C7
-24 679.6 0.1429 7 7 32 42.89 1.5901 81 51 88 5.482 3.9243 200
C8
-23 641.7 0.1511 8 8 33 41.13 1.6359 83 53 89 5.309 3.9512 202
CA
-22 606.1 0.1597 8 8 34 39.44 1.6824 86 56 90 5.143 3.9773 203
CB
-21 572.7 0.1687 9 9 35 37.84 1.7289 88 58 91 4.982 4.0029 204
CC
-20 541.3 0.1782 9 9 36 36.3 1.7762 91
5B
92 4.827 4.0279 205
CD
-19 511.7 0.1881 10
A
37 34.84 1.8235 93
5E
93 4.678 4.0522 207
CF
-18 484 0.1984 10
A
38 33.44 1.8713 95
5F
94 4.534 4.0760 208
D0
-17 457.9 0.2092 11
B
39 32.11 1.9190 98 62 95 4.395 4.0992 209
D1
-16 433.3 0.2206 11
B
40 30.83 1.9673 100 64 96 4.261 4.1218 210
D2
-15 410.2 0.2325 12
C
41 29.61 2.0157 103 67 97 4.132 4.1439 211
D3
-14 388.5 0.2448 12
C
42 28.45 2.0640 105 69 98 4.007 4.1655 212
D4
-13 368 0.2577 13
D
43 27.34 2.1124 108
6C
99 3.886 4.1866 214
D6
-12 348.7 0.2712 14
E
44 26.27 2.1612 110
6E
100 3.77 4.2070 215
D7
-11 330.5 0.2853 15
F
45 25.25 2.2099 113 71 101 3.658 4.2269 216
D8
-10 313.4 0.2999 15
F
46 24.28 2.2584 115 73 102 3.549 4.2465 217
D9
-9 297.2 0.3153 16 10 47 23.35 2.3068 118 76 103 3.444 4.2655 218
DA
-8 281.9 0.3312 17 11 48 22.46 2.3552 120 78 104 3.343 4.2839 218
DA
-7 267.5 0.3478 18 12 49 21.6 2.4038 123
7B
105 3.15 4.3197 220
DC
-6 253.9 0.3651 19 13 50 20.79 2.4516 125
7D
106 3.059 4.3367 221
DD
-5 241.1 0.3830 20 14 51 20.01 2.4994 127
7F
107 2.97 4.3535 222
DE
-4 229 0.4016 20 14 52 19.26 2.5471 130 82 108 2.884 4.3699 223
DF
-3 217.6 0.4209 21 15 53 18.54 2.5947 132 84 109 2.802 4.3856 224
E0
-2 206.8 0.4409 22 16 54 17.85 2.6420 135 87 110 2.721 4.4012 224
E0
-1 196.6 0.4617 24 17 55 17.19 2.6889 137 89 111 2.721 4.4012 224
E0
0 186.9 0.4833 25 18 56 16.56 2.7352 139
8B
112 2.644 4.4162 225
E1
1 177.8 0.5056 26 19 57 15.96 2.7809 142
8E
113 2.569 4.4309 226
E2
2 169.2 0.5285 27
1A
58 15.38 2.8265 144 90 114 2.496 4.4452 227
E3
3 161 0.5525 28
1B
59 14.82 2.8719 146 92 115 2.426 4.4591 227
E3
4 153.3 0.5770 29
1C
60 14.29 2.9163 149 95 116 2.358 4.4727 228
E4
5 146 0.6024 31
1E
61 13.78 2.9603 151 97 117 2.292 4.4859 229
E5
6 139 0.6289 32
1F
62 13.28 3.0048 153 99 118 2.228 4.4988 229
E5
7 132.5 0.6557 33 21 63 12.81 3.0479 155
9B
119 2.167 4.5112 230
E6
8 126.3 0.6835 35 23 64 12.36 3.0902 158
9E
120 2.107 4.5235 231
E7
9 120.4 0.7123 36 24 65 11.93 3.1319 160
A0
121 2.049 4.5354 231
E7
10 114.8 0.7418 38 26 66 11.51 3.1736 162
A2
122 2.049 4.5354 231
E7
11 109.5 0.7722 39 27 67 11.11 3.2144 164
A4
123 1.994 4.5467 232
E8
12 104.4 0.8039 41 29 68 10.73 3.2541 166
A6
124 1.887 4.5689 233
E9
13 99.66 0.8357 43
2B
69 10.36 3.2938 168
A8
125 1.836 4.5796 234
EA
14 95.13 0.8686 44
2D
70 10 3.3333 170
AA
126 1.787 4.5899 234
EA
15 90.82 0.9024 46
2C
71 9.659 3.3717 172
AC
127 1.739 4.6000 235
EB
16 86.74 0.9369 48
2E
72 9.331 3.4094 174
AE
128 1.693 4.6098 235
EB
17 82.85 0.9723 50 32 73 9.016 3.4464 176
B0
129 1.649 4.6192 236
EC
18 79.16 1.0085 51 33 74 8.712 3.4829 178
B2
130 1.605 4.6286 236
EC
19 75.65 1.0455 53 35 75 8.421 3.5185 179
B3
20 72.32 1.0832 55 37 76 8.14 3.5537 181
B5
21 69.15 1.1217 57 39 77 7.869 3.5882 183
B7
22 66.13 1.1610 59
3B
78 7.609 3.6220 185
B9
23 63.27 1.2009 61
3D
79 7.359 3.6551 186
BA
24 60.54 1.2416 63
3F 80
7.118 3.6876 188
BC
25 57.94 1.2830 65 41 81 6.885 3.7195 190
BE
Page 14
44..ELECTRICAL
ELECTRICAL
DAT A
DAT A
2. THE PARAMETER OF THE OUTDOOR COIL AND OUTDOOR AMBIENT AND INDOOR TEMPERATURE
SENSOR：（R
0
=15K±2%；B=3450±2%
）
T(℃) R(KΩ) V(v) DEC HEX T(℃) R(KΩ) V(v) DEC HEX T(℃) R(KΩ) V(v) DEC HEX
-30 67.94 0.3235 16 10 18 6.962 2.0151 103 67 66 1.297 3.9186 200 C8
-29 64.25 0.3408 17 11 19 6.688 2.0636 105 69 67 1.258 3.9443 201 C9
-28 60.79 0.3588 18 12 20 6.427 2.1120 108 6C 68 1.22 3.9696 202 CA
-27 57.53 0.3776 19 13 21 6.178 2.1603 110 6E 69 1.184 3.9939 204 CC
-26 54.48 0.3971 20 14 22 5.939 2.2089 113 71 70 1.149 4.0178 205 CD
-25 51.6 0.4174 21 15 23 5.712 2.2570 115 73 71 1.116 4.0406 206 CE
-24 48.9 0.4384 22 16 24 5.494 2.3053 118 76 72 1.083 4.0636 207 CF
-23 46.35 0.4603 23 17 25 5.286 2.3533 120 78 73 1.051 4.0862 208 D0
-22 43.96 0.4829 25 19 26 5.086 2.4014 122 7A 74 1.021 4.1077 209 D1
-21 41.7 0.5065 26 1A 27 4.896 2.4489 125 7D 75 0.9914 4.1290 211 D3
-20 39.58 0.5307 27 1B 28 4.714 2.4963 127 7F 76 0.963 4.1497 212 D4
-19 37.58 0.5558 28 1C 29 4.539 2.5436 130 82 77 0.9354 4.1701 213 D5
-18 35.69 0.5818 30 1E 30 4.372 2.5904 132 84 78 0.9088 4.1898 214 D6
-17 33.91 0.6087 31 1F 31 4.212 2.6369 134 86 79 0.8831 4.2091 215 D7
-16 32.23 0.6363 32 20 32 4.059 2.6830 137 89 80 0.8582 4.2280 216 D8
-15 30.65 0.6648 34 22 33 3.912 2.7288 139 8B 81 0.8342 4.2463 217 D9
-14 29.15 0.6942 35 23 34 3.772 2.7738 141 8D 82 0.8109 4.2643 217 D9
-13 27.74 0.7244 37 25 35 3.637 2.8188 144 90 83 0.7884 4.2818 218 DA
-12 26.4 0.7556 39 27 36 3.508 2.8631 146 92 84 0.7666 4.2988 219 DB
-11 25.14 0.7875 40 28 37 3.384 2.9070 148 94 85 0.7455 4.3155 220 DC
-10 23.95 0.8202 42 2A 38 3.265 2.9504 150 96 86 0.725 4.3318 221 DD
-9 22.82 0.8539 44 2C 39 3.151 2.9932 153 99 87 0.7053 4.3476 222 DE
-8 21.75 0.8885 45 2D 40 3.041 3.0358 155 9B 88 0.6861 4.3631 223 DF
-7 20.74 0.9237 47 2F 41 2.936 3.0775 157 9D 89 0.6676 4.3781 223 DF
-6 19.79 0.9596 49 31 42 2.835 3.1188 159 9F 90 0.6496 4.3929 224 E0
-5 18.88 0.9966 51 33 43 2.739 3.1590 161 A1 91 0.6323 4.4071 225 E1
-4 18.02 1.0343 53 35 44 2.646 3.1990 163 A3 92 0.6156 4.4209 225 E1
-3 17.2 1.0731 55 37 45 2.556 3.2387 165 A5 93 0.5993 4.4345 226 E2
-2 16.43 1.1122 57 39 46 2.471 3.2771 167 A7 94 0.5836 4.4477 227 E3
-1 15.7 1.1520 59 3B 47 2.388 3.3155 169 A9 95 0.5683 4.4606 227 E3
0 15 1.1929 61 3D 48 2.309 3.3528 171 AB 96 0.5535 4.4732 228 E4
1 14.34 1.2342 63 3F 49 2.233 3.3896 173 AD 97 0.5391 4.4855 229 E5
2 13.71 1.2765 65 41 50 2.159 3.4262 175 AF 98 0.5251 4.4975 229 E5
3 13.11 1.3195 67 43 51 2.089 3.4615 177 B1 99 0.5115 4.5093 230 E6
4 12.55 1.3623 69 45 52 2.021 3.4965 178 B2 100 0.4983 4.5207 231 E7
5 12.01 1.4063 72 48 53 1.956 3.5306 180 B4 101 0.4855 4.5319 231 E7
6 11.5 1.4506 74 4A 54 1.893 3.5644 182 B6 102 0.4731 4.5427 232 E8
7 11.01 1.4959 76 4C 55 1.832 3.5977 183 B7 103 0.461 4.5534 232 E8
8 10.55 1.5410 79 4F 56 1.774 3.6299 185 B9 104 0.4492 4.5638 233 E9
9 10.1 1.5878 81 51 57 1.718 3.6616 187 BB 105 0.4378 4.5739 233 E9
10 9.684 1.6338 83 53 58 1.664 3.6926 188 BC 106 0.4268 4.5838 234 EA
11 9.284 1.6805 86 56 59 1.612 3.7231 190 BE 107 0.416 4.5934 234 EA
12 8.903 1.7276 88 58 60 1.562 3.7528 191 BF 108 0.4055 4.6029 235 EB
13 8.54 1.7749 91 5B 61 1.513 3.7824 193 C1 109 0.3953 4.6121 235 EB
14 8.194 1.8226 93 5D 62 1.467 3.8106 194 C2 110 0.3854 4.6211 236 EC
15 7.864 1.8704 95 5F 63 1.422 3.8386 196 C4
16 7.549 1.9185 98 62 64 1.379 3.8658 197 C5
17 7.249 1.9667 100 64 65 1.337 3.8927 199 C7
Page 15
55..CONTROL
CONTROL
MODE
MODE
5-1. Major general technical parameters
5-1-1 Conditionings for operation: Ambient temperatures: (-7℃-+43℃),
5-1-2 Remote receiver distance（front of the air conditioner）:8m.
5-1-3 Remote receiver angle: Less than 60 degrees.
5-1-4 T emperature control accuracy: ±1℃.
5-1-5 Time error: Less than 1%.
5-2. Functions of the controller
5-2-1 Display panel
I. Control functions of the remote controller (See operating and installation
manual)
II. Display of the indoor unit
Information on the screen:
Displaying Scheme:
7-segment tube
：
Display set temperature or indoor temperature , and display
fault code in trouble indicating. An error code is displayed according to the
signal from the indoor CPU. The error code will flash for 5 seconds while
displayed.
Running LED
：
It is on during operation. It is flashing when the unit defrost.
TIMER LED
：
When the timer mode works, the LED will be lighted.
Sleep LED
：
When the sleep mode works, the LED will be lighted, and after 10s,
the LED will be off.
Compressor LED
：
It lights up when compressor is running.
Remote control receiver
：
This section receives signals from the remote
control.
5-3. Control function
5-3-1 Emergency switch
If the appliance under the Stand-by state, all the Operation Mode, Air
volume, Temperature Setting , Forced Cooling function will be restored as the
last time setting when you press on the “ON/OFF” button, but lost the Air flow
direction setting.
If the appliance was connected to the power at first time, it would operate in
the auto mode, It will keep in stand-by state if you press the “ON/OFF” button
during the normal operation.
When the appliance under the Stand-by state, press and hold the
emergency switch for 5 seconds, the buzzer rings for 1 times, and it will operate
Page 16
55..CONTROL
CONTROL
MODE
MODE
in cooling mode, and the indoor fan speed is set to high-speed, it running has
nothing to do with the room temperature.
When press the emergency switch or receive the signal of the remote control,
it will exit this mode, and it will operate with the corresponding order.
5-3-2 Operator-machine communication
If the unit has I feel function, when the I feel function is set by the remote
control, the room temperature will depend on the remote control and it will be
detected by the sensor of the remote control. Normally the remote control will
automatically transmits a signal at an interval of 10 minutes（only for H1 remote
control, it is 9 minutes）, but if the room temperature changed exceed 1℃in a
short period of time, the remote control will transmits a signal within 2 minutes.
If the indoor unit has not received a remote signal within 30 minutes, the room
temperature will depend on the room temperature sensor of indoor unit.
5-3-3 Timer function
Real time of Timer setting
(1) The max Timer ranges is 24 hours.
(2) Timer ON/OFF
(3) Timer ON/OFF can be set available in turn.
(4) The Timer accurate more than 97%
(5) The Timer can be adjusted by 1 min increase.
(6) The appliance can be set the ON-Timer and OFF-Timer in the same time,
but no any timer setting indicated.
5-3-4 Sleep
(1)The Sleep mode can only be set during Cool, Heat and Dry mode.
（2）When the appliance run in the Sleep mode, it will stop after 8 hours
operation, then it will cancel the Sleep setting. When the appliance operate
under the OFF-Timer setting condition, if the OFF-Timer setting less than 8
hours, it will keep the Sleep mode till the OFF-Timer setting; if the OFF-Timer
setting more than 8 hours, it will cancel the OFF-Timer setting after the Sleep
mode OFF.
（3）
When the Sleep mode is select with Cooling mode, if the room
temperature not less than 26℃, the setting temperature will not be adjusted,
otherwise, the setting temperature will be raised by 1℃ per hour, but the max
setting temperature raise is 1℃.
（ 4 ） When the Sleep mode is select with Heat mode, the setting
temperature will be decreased by 1℃per hour during the successive 3 hour, but
Page 17
55..CONTROL
CONTROL
MODE
MODE
the max setting temperature decrease is 3℃.
（5）
When the appliance operate with Sleep mode, the indoor fan run in the
LOW setting, and the air flow direction same as the last setting and the
temperature and air flow direction can be adjusted by user. The Running
indicator will be flashed 10 times per 1 Hz frequency, then all the indicators turn
OFF except the Sleep light after 5 min elapse. Those indicators will be recovery
when the temperature or Time setting is adjusted, after the setting, the
indicators will be lit in 10 sec, then turn OFF.
5-3-5 Automatic run (SMART) mode
When the appliance operates at the smart, the air flow direction can be
adjusted.
(1) H/C appliance
a. When the setting temperature is 26℃, the appliance will be ran in the
Cool if the room temperature exceeds 26℃.
b. When the room temperature exceeds 23℃,butbelow26℃, it will be ran
in the Dry mode(It will turn in Automatic setting After 3 min LOW air volume
running.).
c. When the room temperature exceeds 21℃,butbelow23℃, it will be
operated in the Fan only, the air volume is set by LOW and the fan speed can be
adjusted
d. When the room temperature is not more than 21℃, it will be operated in
Heat mode, and the temperature is set to 22℃.
(2) Cool only appliance
a. When the room temperature exceeds 26℃,itwillberaninCoolmode,
and the temperature is set to 26℃.
b. When the room temperature exceeds 23℃, but not more than 26℃, it will
be operated in the Dry mode.
c. When the room temperature is not more than 23℃, it will be operated in
the Fan only, the air volume is set to LOW and the fan speed can be adjusted
After the appliance start the smart operation, the setting temperature can
be adjusted 2℃or 7℃(based on the remote mode)(the min accuracy is 1℃)
up and down base on the automatic temperature setting, also the presetting
temperature of PCB circuit.
In case of the specific operation selected, it could be re-select the other
modes after the compressor ceased for 5 min or the setting temperature
changed.
5-3-7 Cooling-run mode
Page 18
55..CONTROL
CONTROL
MODE
MODE
4-3-7-1 Outdoor Fan
The outdoor fan’s speeds except the single speed motor can be changed
according to outdoor ambient temperatures.
When operating at a fixed frequency, the outdoor fan is forced to operate at the
high speed.
4-3-7-2 Indoor fan operation
(1）When the indoor fan keep in running condition, this operation state could
be controlled by the remote control with High, Median, Low and Automatic
setting.
(2）When the appliance is set Automatic condition in the Cool mode for the
first time, the fan speed will run at Low setting. After that, temperature and fan
speed is shown as following.
Temperature fall
Temperature rise
High
The settingtemp.plus 4℃
Median
The settingtemp.plus 2℃
Low
When the difference between the setting temperature and the room
temperature equal to 2℃or 4℃, the indoor fan speed will keep in current
speed.
4-3-7-3 Air flow direction control
The louver is derived by a step motor, and it swings the horizontal louver
automatically. Press the SWING button to swing or stop the louver.
During the louver swing in normal operation, the current position will be
stored. When the appliance turn off and louver swing automatically to the
default position, it will position at the close position plus 5º.
4-3-7-4 4-way valve
State: It is interrupted in cooling.
Switchover: When initially powered on for cooling, the 4-wa y valve is
interrupted immediately.
When the heating is changed to the cooling, it needs an interval of 50 seconds
Page 19
55..CONTROL
CONTROL
MODE
MODE
for the 4-way valve to change over from being activated to being interrupted.
5-3-8 Heating-run mode
4-3-8-1 Temperature compensation
The temperature compensation is 5º in heating mode. For example, if the
set temperature is 25℃by the remote control, when the room temperature is
detected with 31℃, the compressor will turn off. The main reason is that the hot
air is condensed at the top of the house.
Note: The compensation is available only if the room temperature sensor of
indoor unit is used and it is not available when it is subject to the sensor on the
remote control.
4-3-8-2 Indoor fan motor operation
Anti-cold air system:
When the appliance run in Heat mode condition, the indoor fan motor
operation is shown as following to prevent the cooling air come out during the
appliance operation.
Temperature fall
Temperature rise
30℃
The settingair flow
The settingair flow
35℃
25℃
Low
Extra-low
Sto
p
Sto
p
When the appliance turn in the anti-cold air system in the Extra-LOW
(Tapped motor set in LOW, sic passim) during the compressor operation, the
louver swang to the Cool air protection position, the louver recovers to the
original position after the air volume change to LOW. When the room
temperature reach to the setting temperature, the compressor will be turn off,
and the air flow change to LOW, the louver swang to the Cool air protective
position to prevent the air drop into human body directly; when the indoor pipe
coil temperature drop continuously, it will turn in the Cooling air protective
system in the Extra-LOW or stop the fan motor.
The indoor fan motor is only controlled by the signal of indoor pipe coil
temperature, no matter the compressor turn ON/OFF, even the appliance turn in
Heat mode at first time.
The indoor fan motor will operate according to the different setting(High,
Page 20
55..CONTROL
CONTROL
MODE
MODE
Median, Low and Automatic) by the remote control, but the anti-cold air system
is prior.
When the appliance run in the Heat mode with the Automatic setting at first
time, the fan speed will be in the LOW setting, and the operation diagram is
shown as following
The settingtemperature
-2℃
Low
MEDIAN
The settingtemperature
-4℃
High
Temperature fall
Temperature rise
When the difference between the setting temperature and the room
temperature equal to 2℃or 4℃, the indoor fan speed will keep in current
speed.
5-3-8-3 Air flow direction control
The horizontal louver is controlled by a step motor, press the SWING button
to swing or stop the louver.
During the louver run in normal operation, the current position will be
stored. When the appliance turn off and louver swing automatically to the
default position, it will position at the default position plus 5º.
4-3-8-4 Outdoor fan
The outdoor fan speeds except single speed motor can be changed according to
outdoor ambient temperatures.
4-3-8-6 4-way valve
State: It is electrified in heating.
Switchover: When initially powered on for heating, the 4-way valve is activated
immediately.
In the change from cooling to heating, it needs an interval of 50 seconds for the
4-way valve to change over from being interrupted to being activated.
5-3-9 The super function (option)
In cooling mode, when you press the SUPER button by remote control, the unit
will operate for 15 minutes with the following setting:
a. The set temperature is 18
℃;
Page 21
55..CONTROL
CONTROL
MODE
MODE
Tset
16
0
C
b. The fan speed with highest speed;
c. The compressor runs with high frequency.
5-3-10 Dehumidifying mode
The dehumidifying mode is illustrated as follows:
Dehumidifying area I: Operation at the frequency in the range (30–60Hz)
according to t(T
indoor ambient-Tset
).
t(℃)
f(Hz)
030
0.5 30
140
1.5 50
≥260
Dehumidifying area II: The compressor stops for 5 minutes and operators for 5
minutes at the lowest frequency.
Dehumidifying area III: The compressor stops.
Time
III III
IndoorAmbient Temperature
Page 22
55..CONTROL
CONTROL
MODE
MODE
5-3-10 Fan Only Mode Operation
During the appliance run in this mode, the compressor and outdoor fan stop,
the indoor fan operate under the pre-setting of air volume, and the louver swing,
and the indoor fan speed same as the Heating Mode.
Page 23
6. TROUBLE SHOOTING
1.Indication on the outdoor unit:
When the unit has the following trouble and the compressor stops running, The LED of outdoor
control board will show the error sequence automatically:
NOTE:
★：LIGHT
：FLASH：OFF
Error
code
Outdoor Failure
Description
LED1 LED2 LED3
the root cause my be one of the
following
Normal
Outdoor coil temperature
sensor in trouble
★
★
a.the outdoor coil sensor connect
loose;
b.the outdoor coil temperature
sensor is failure;
c.the outdoor control board is
failure
Compressor exhaust
temperature sensor in trouble
★
a.the compressor exhaust
temperature sensor connect loose;
b.the compressor exhaust
temperature sensor is failure;
c.the outdoor control board is
failure
Communication failure
between the indoor unit and
outdoor unit
a.the communication cable connect
loose;
b.the communication cable is
failure;
c.the connection between the filter
board and the outdoor control
board is incorrect or loose;
d.the connection between the filter
board and the terminal is incorrect
or loose;
e.the indoor control board is
failure;
f.the PFC board is failure;
g.the power board is failure;
h.the outdoor control board is
failure.
Current overload protection
★
a.the fan motor run abnormally;
b.the condensor and evaporator is
dirty;
c.the air inlet and outlet is
abnormally
Maximum current protection
★
★
a.the outdoor control board is short
circuit;
b.the drive board is short circuit;
c.the other components is short
circuit
Page 24
6. TROUBLE SHOOTING
Communication trouble
between outdoor unit and
driver
★★
a. the connection wires connect
loose
b.the outdoor board or drive
board is failure;
Outdoor EEPROM in trouble
★★★
a.the EEPROM chip is loose;
b.the EEPROM chip inserted with
opposite direction;
c.the EEPROM chip is failure
Compressor exhaust
temperature too high
protection
★
a.the compressor exhaust
temperature sensor is failure;
b.the refrigerant of the unit is not
enough
Outdoor ambient
temperature sensor in trouble
★★
a.the outdoor ambient temperature
sensor connect loose;
b.the outdoor ambient temperature
sensor is failure;
c.the outdoor control board is
failure
Compressor shell
temperature too high
protection
★
a.the compressor exhaust
temperature sensor connect loose
b.the refrigerant of the unit is not
enough
Anti-freeze protection with
cooling or overload protection
with heating in indoor unit
a.the indoor coil temperature
sensor connect loose;
b.the indoor coil temperature
sensor is failure;
c.the indoor control board is failure
d. the refrigerant system is
abnormal.
Compressor drive in trouble
a.the outdoor drive board is failure;
b.the compressor is failure
c. the outdoor control board is
failure
Outdoor fan motor locked
rotor protection
★
a.the connection of the outdoor fan
motor is loose;
b.there are something block the
outdoor fan;
c.the fan motor is failure;
d.the outdoor control board is
failure
Page 25
6. TROUBLE SHOOTING
Outdoor coil anti-overload
protection with cooling
★
a.the refrigerant is too much;
b.the outdoor fan motor is failure;
c.the outdoor fan is broken;
d.the condensor is dirty;
e.the air inlet and air outlet of the
indoor unit and the outdoor unit is
not normally
IPM module protection
a.The IPM board is failure;
b.The outdoor fan is broken;
c.The outdoor fan motor is failure;
d.The outdoor fan has been
blocked ;
e.The condenser is dirty;
f.The outdoor unit has been
installed without standard.
PFC protection
a.the PFC is failure;
b.the outdoor drive board is failure
Compressor pre heating
process
★
it is normal mode in cold weather
Chip in outdoor board in
trouble
★
a. Using the wrong drive board;
b. Using the wrong compressor.
AC voltage higher or lower
protection
★★
a.the supply voltage is higher or
lower than normal;
b.the inner supply voltage of the
unit is higher or lower than normal
DC compressor start failure
a.the outdoor drive board is failure;
b.the compressor is failure
Page 26
6. TROUBLE SHOOTING
2.Indication by the indoor unit:
2.1.The LED of indoor display board will show the error sequence automatically when the unit has the
following trouble:
Error
code
Power Timer Running Sleep
Remark
：
★Light o Flash x OFF
1 2 3 4 Content Remark
Therootcauseismaybeone
of the following
E2
When the evaporator
pipe temperature is
higher than 63 ℃,the
error code will display
a. It is normally for protection, When
the indoor pipe temperature between
53℃<T<63℃, the outdoor fan motor will
stop running. When the indoor coil
temperature is higher than 63℃,the
error code will display. After the indoor
pipe temperature is lower than 49℃,the
air conditioner will restart normally.
b. The indoor coil temperature sensor is
loose;
c. The indoor coil temperature sensor is
failure;
d. The indoor control board is failure.
E4
When the indoor fan
speed is lower than
200 rpm, the error
code will display
Only
9k/12k/18
K
a. There are something block
the indoor fan motor;
b. The fan motor cord connect loose;
c. The fan motor is failure;
d. The indoor control board is failure
EA
the error code will
display when the
communication
between display
board and control
board have in trouble
a. The connection between the
display board and control board is loose;
b. The indoor control board is failure.
c.The wiring of the display board is
failure.
Page 27
6. TROUBLE SHOOTING
2.2.When the unit has the following trouble and the compressor stops running, press the sleep button on
the remote controller for 4 times and the 7-segment tube of the display board will show the error code as the
following, if two malfunction happened at the same time, it need press the sleep button for 4 times again, the
LED will show the other error code.
NOTE: If the troubleshooting inquiry display by 7-segment tube, then the error code will be displayed,
otherwise only the LED of the display board can show.
Error
code
Power Timer Running Sleep
Remark：★Light
o Flash x OFF
12 3 4Content Remark
The root cause is may be one of the
following
1xoxx
The failure for
temperature sensor of
outdoor coil
Heat pump
a. The outdoor temperature sensor loose;
b. The outdoor temperature sensor is
failure;
c. The indoor control board is failure
33 o x x
★
The failure for
temperature sensor of
indoor room
a. The indoor room temperature sensor
loose;
b. The indoor room temperature sensor is
failure;
c. The indoor control board is failure.
34 o x
★
x
The failure for
temperature sensor of
indoor coil temperature
a. The indoor coil temperature sensor
loose;
b. The indoor coil temperature sensor is
failure;
c. The indoor control board is failure.
38 o
★★★
Indoor EEPROM failure
a. The EEPROM chip loose;
b. The indoor control board is failure
39 o x
★★
Indoor fan motor run
abnormally
7k,9k,12k,
18K
a. There are something block the indoor fan
motor;
b. The fan motor cord connect loose;
c. The fan motor is failure;
d. The indoor control board is failure
41
★★
x
★
The failure for Indoor
grounding protective
The indoor control board is failure
42 o o x
★
Overcooling protection
7k,9k=-1℃
12k=-7℃
a. It is normally for protection, When the
indoor pipe temperature below
T<-1℃(-7℃).Outdoor fan motor and
compressor will stop running. When the
Indoor pipe temperature is higher than
-1(-7℃),the unit will restart normally
b. The indoor coil temperature sensor is
loose;
c. The indoor coil temperature sensor is
failure;
d. The indoor control board is failure.
Page 28
6. TROUBLE SHOOTING
43 o o
★
x Overheating protection
a. It is normally for protection, When the
indoor pipe temperature between
53℃<T<63℃, the outdoor fan motor will stop
running. When the indoor coil temperature is
higher than 63℃, the error code will display.
After the indoor pipe temperature is lower
than 49℃, the air conditioner will restart
normally.
b. The indoor coil temperature sensor is
loose;
c. The indoor coil temperature sensor is
failure;
d. The indoor control board is failure.
The failure is detected when the room temperature sensor broken or shorted over 5 sec.
The failure is detected when the temperature sensor of heater exchange broken or shorted over 5 sec.
The failure is detected when each setting data is not match after the EEPPOM self-check two times.
The failure is occur when the grounding signal is not detected after the appliance power ON.
Page 29
66TROUBLE
TROUBLE
SHOOTING
SHOOTING
6-1. Service flow chart
No
No
Yes
No
Yes
Yes
No
Yes
No
Check the input voltage and output
voltage correct or not
The input voltage(power input):220V
The output voltage(IC902):
Pin1-pin2:12V
PIN3-PIN2:5V
Switch on the power
supply
Are the wires poorly
connected?
Make sure all wires
are connected
correctly
No
Replace
the
display
board
Indoor control board is fault
Replace it.
Does it receive the
remote controller
signal?
Yes
Is the remote
controller
setting right?
Is the remote
controller in good
condition?
Replace the batteries
Retry remote operation.
If not good, replace
remote
controller
Replace the
display board
Replace the indoor
control board
Yes
Is the fuse
( 3.15A/250V) blown?
Does the screen display
normally?
Yes
Check the error
code
Page 30
66TROUBLE
TROUBLE
SHOOTING
SHOOTING
Yes
Error code 6
Voltage of power supply is abnormal
Is the voltage of power
supply normal of AC
198~253V?
Yes
Normal
protection
No
Outdoor IPM board fault,
replace it.
Error code 34
Indoor Coil sensor
trouble
Error code 33
Indoor temperature
sensor
Does the resistance
of the sensor have
the characteristics
on part 6-3
Replace the the
sensor
No
Replace the
indoor pcb board
Take out the red connector
sensor ,Measure the
resistance of sensor
Take out the white connector
sensor ,Meaure the
resistance of sensor
Error code 14
Outdoor temperature
sensor in trouble
Error code 1
Outdoor coil sensor
in trouble
Take out the yellow
connector sensor ,Meaure
the resistance of sensor
Take out the black
connector sensor ,Meaure
the resistance of sensor
Does the resistance
of the sensor have
the characteristic on
part 6-3 (SENSOR
PARAMETER)
Replace the the sensor
No
Yes
Replace the
outdoor board
Error code 2
Outdoor Compressor
exhaust
temperature sensor
Take out the black
connector sensor ,Meaure
the resistance of sensor
Page 31
66..TROUBLE
TROUBLE
SHOOTING
SHOOTING
Erro r c o d e 3 9
Ind o o r fa n motor tro u b le
Is indoor fan motor running?
Set the air conditioner operate
in fan mode
D o e s fa n moto r s to p follow in g th e
remote controller order？
Check the connector of
indoor motor connected
tightly or not
Check the each pin to “GND”pin
shorted or not
Indoor control board faulty
and replace it
With power on check“Vdc”pin
to“GND”pin 310Vdc or not;
“Vcc”pin to“GND”pin 15V or
not
Replace the indoor fan
motor
no
yes
yes
yes
no
yes
no
no
Page 32
66..TROUBLE
TROUBLE
SHOOTING
SHOOTING
Erro r c od e 7、 36
Com m unication trouble
Are all the lead wires connected
between indoor and outdoor unit?
Connect the indoor and
outdoor unit again according
to th e w irin g d ia g ra m
Is there power output between
indoor T/B 1 and 2 AC 220V ?
Indo or c on tro l
board in trouble
replace the indoor
board
Does the power
indicator(LED) of outdoor
co n tro l bo a rd(P C B) lig h t
up?
Replace the
outdoor control
board and start up
again
Is the 3.15A fuse(F01) of outdoor
PCB blown?
Is the 20A fuse(F03) of outdoor PCB
blown?
Is the s y s tem in
good condition?
Outdoor control
board trouble
Indoor control board
fault, replace it.
Replace fuse
The control system of outdoor
unit has short circuit trouble,
check the connection wire,
IPM , rectifie r( in th e PF C
model) and electrolyse
capacitor
The switch power
circuit broke and
change the outdoor
control board
Replace fuse
yes
no
no
yes
yes
yes
no
no
yes
no
yes
Check if there are some
short circuit
behiand“ F01” and
between “ F01”“DC-”
no
no
no
yes
1.IPM 、 r e c tifie r( in th e PF C
model)shorted change the
drive board
2.other shorted change the
outdoor control board
Replace the outdoor control
board
yes
Page 33
66..TROUBLE
TROUBLE
SHOOTING
SHOOTING
Error code 13
Compressor over heat
protection
Is the surface of
compressor very hot?
No
Normal protecton，
maybe lack of
refrigerant
Yes
Is the resistance of
compressor discharge
sensor correct?
Replace the
sensor
No
Yes
Outdoor control board
faulty, replace it
Error code 8
Current overload
protection
Is the air inlet and
outlet of indoor/outdoor
unit abnormally
No
Cleanup the inlet and
outlet of indoor/outdoor
unit
Yes
Is the condensor and
evaporator dirty;
Cleanup the condensor
and evaporator
yes
no
The outdoor drive board
fault ,replace the board
Page 34
66..TROUBLE
TROUBLE
SHOOTING
SHOOTING
Error code16（cooling mode）
Anti-freeze protection indoor unit
Is indoor heat exchanger
iced up?
no
yes
refrigeration system
protection,check the air inlet
and outlet of indoor unit
Error code16（heating mode）
Overload protection indoor unit
Is indoor heat exchanger
overheating?
Yes
Error code21(cooling
mode)
Outdoor coil anti-
overload protection
Is the outdoor condensor
overheating?
no
yes
Change the
outdoor control
board
Check the coil sensor of
outdoor unit right or not
yes
no
refrigeration system
protection,check the
air inlet and outlet of
outdoor unit
Change the coil
sensor
Error code11
Outdoor EEPROM in
trouble
Refix the EEpromno
Change the
EEprom
yes
Check the coil sensor
right or not
no Change the indoor board
yes
Change the coil sensor
refrigeration system
protection,check the air inlet
and outlet of indoor unit
no
Check the coil sensor of
indoor unit right or not
yes Change the indoor board
no
Change the coil sensor
Check the EEprom
fixing right or not
Page 35
66..TROUBLE
TROUBLE
SHOOTING
SHOOTING
Error code 9
Maximum current
protection
Is the windings of the
conpressor right or
not(eath winding and
windingtotheearth)
yes
Compressor fault ,replace
the compressor
no
The outdoor drive board
fault ,replace the board
Error code 10
Communication trouble
between outdoor control board
and drive board
Check the wires
between control board
and drive board
connect tightly or not
yes
Reconnect the wires
no
control board fault ,replace
the board
yes
Drive board fault ,replace
the board
no
If the driver borad
has the +5V、+15v
Page 36
66..TROUBLE
TROUBLE
SHOOTING
SHOOTING
Error code 15
Compressor shell temperature
too high protection
Is the protector plug
connected to the CN10
of the control board
tightly or not
yes
Reconnect the plug
no
Normal protecton，maybe
lack of refrigerant or the two
valves that connecting to
indoor unit are not opening
yes
The protector fault ,replace it.
Or the protector connecting
wire in the conpressor is
loosen,check it
no
Stop the machine for a
while then check the pins
of the protector plug if it
is short or not
Page 37
66..TROUBLE
TROUBLE
SHOOTING
SHOOTING
Error code 20
Outdoor fan motor locked
rotor protection
Is the fan moror
connection plug
connected to the
control board
yes
Reconnect the plug
no
yes
no
Is something
block the fan
yes
Cleanup it
Check the
fan speed
ri
g
ht ornot
no
Check the
capacitor of
the motor on
the control
board is right
no
The control
board is
fault,replace
the board
Check the coil
sensor and
ambient sensor
right or not
The fan motor
is fault,replace
yes
The control board
is fault ,replace it
Replace the
fault sensor
yes
no
no
DC
FAN
AC
FAN
Replace the
fan motor ok
or not
The control board
is fault,replace the
borad
yes
no
Motor fault
Page 38
66..TROUBLE
TROUBLE
SHOOTING
SHOOTING
Error code 19
Compressor drive in trouble
Is the wires between
control board and drive
board connecting tightly?
yes
Reconnect the wires
no
yes
no
Change the
drive board and
check ok or not
yes
Drive board is fault
Disconnect the
wires of CN6 and
check the +5V
again
yse
Check the compressor:
1. the resistance of the
windings right or not
2. the resistance between
the windings and
grand right or not
no
The compressor
is fault,change
the compressor
Is there +5V
in the CN6 ?
The error appeared by
accident,keep operating
and watching the air-con
yes
no
no
Change the control
board
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