Hisense AS-18UR4STVUH1 User manual

AS-18UR4STVUH1

Type of contents
1.OPERATIONRANGE 1
2.SPECIFICATION 2
3.INSTALLATION 6
4.ELECTRICALDATA 7
5.CONTROLMODE 13
6. TROUBLE SHOOTING 20
7.CHECKINGCOMPONENTS 25
8.PARTLIST 28

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1. . O OP PE ER RA AT TI IN NG G R RA AN NG GE E
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Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp
Maximum 32 D.B./23 W.B.℃℃ 43 D.B./26 W.B.℃℃COOLING Minimum 21 D.B./15 W.B.℃℃ 21 D.B./15 W.B.℃℃
Maximum 27 D.B./18 W.B.℃℃ 24 D.B./18 W.B.℃℃HEATING Minimum 20 D.B/℃≤15 W.B℃-7 D.B./℃-8 W.B.℃

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2-1. Unit specifications
Model No. AS-18UR4STVUH1
Type H/P,INVERTER
Ratings
Cooling Capacity Btu/h 18000(6200-20000)
Heating Capacity Btu/h 19000(6000-23000)
Rated Input-Cooling W 1550(480-2400)
Rated Input-Heating W 1540(480-2500)
Moisture Removal L/H.r 2.4
Air Circulation m3/h Max 900
EER for Cooling Btu/h.W, W/W 11.61,3.40
COP for Heating W/W 3.61
Energy Class Cooling A
Energy Class Heatling A
Refrigerant R410a
Refrigerant charge volume g 1700
High(dB (A)) 48
Indoor Unit Noise Level Low(dB (A)) 40
Outdoor Unit Noise Level dB (A) 58
Power Supply
Voltage, Frequency, Phase V 220-240V~,50Hz,1P
Cooling (A) 7.6
Rated Current Heating (A) 7.4
System
Compressor type Rotary
Compressor Model No. DA130S1C-20FZ
Compressor MFG Toshiba
Expansion Device Capillary
Evaporator Copper tube and Aluminum Fin
Condenser Copper tube and Aluminum Fin
Connecting Pipe Diameter
Liquid Pipe inch 1/4
Gas Pipe inch 1/2
Other
Indoor Unit 920x313x203
NetDimensions WxHxD
(mm) Outdoor Unit 830x637x268
Indoor Unit 12
Net Weight (Kg) Outdoor Unit 47
Indoor Unit 1007X400X310
Packing Dimensions WxHxD (mm) Outdoor Unit 980×680×400
Indoor Unit 16
Gross Weight (Kg) Outdoor Unit 52

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Loading Capacity (20'/40'/40'HC ) 70/150/175
Approvals CE, WEEE,RoHS
NOTE :Test conditions：
Cooling : Indoor: DB27℃/ WB19℃ Outdoor: DB35℃/ WB24℃
Heating: Indoor: DB20℃/ WB15℃ Outdoor: DB7℃/ WB 6℃
2-2. Major component specifications
2-2-1.INDOOR FAN MOTOR
WIRING DIAGRAM
ELECTRIC
PERFORMANCE PARAMETER
Motor model DG13G2-02
Rated power source 208V～240V；50Hz～60Hz
Poles 4
Rated load output(W) 25W
Ambient temperature(℃) -5℃～+43℃.

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2-2-2. OUTDOOR FAN MOTOR
ELECTRIC PERFORMANCE PARAMETER
Motor model DG13Z1-35
Rated power source 208~240V 50~60HZ
Poles 4
Rated load output(W) 36W
Ambient temperature( )℃-5℃～+43 .℃
WIRING DIAGRAM
2-2-3. COMPRESSOR
ELECTRIC PERFORMANCE PARAMETER
Compressor model DA130S1C-20FZ
Compressor type Rotary DC inverter
Motor type DC Brushless Motor(Revolution Variable)Motor Winding resistance（at 20℃）0.95
Number of cylinder 1
Oil type ESTER OIL VG74
Oil charge (cc) 500
Input power(W) 990W(+5%)
Current (A) 4.97A(+5%)
Ambient temperature( )℃-5℃～+43 .℃
WIRING DIAGRAM

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2-3. Other component specifications
2-3-1. STEPPER MOTOR
ELECTRIC
PERFORMANCE PARAMETER
Stepper Motor model DG13B1-01
Voltage(DC) 12V
Number of phase 4
Drive mode 1-2 phase excitation unipolar drive
Resistance per phase 200Ω±7%
Relative humidity(RH) 45%～85%
Temperature range(℃) -10℃～+40℃.
WIRING DIAGRAM
3 yellow ()
1blue ()
5red ()
M

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1. Indoor Unit:
For indoor unit installation, the distance between its top and the ceiling shall
not be less than 10 cm -20 cm, and the distance from the ground should be between
2m to 2.6m. Also the wallboard must be smooth and straight, with its supporting force
of not less than 60 kg.
The location for installing the indoor unit shall be far away from heat source,
the space between it and the door or window should exceed 0.6m
2. Outdoor Unit:
The air conditioner outdoor unit should not occupy public sidewalks, the
distance between the mounting bracket installed along the road (on condition that
the mounting bracket does not affect the public access, it can be installed
horizontally) and the ground must exceed 2.5m. Also we shall remember that: a. the
air flow must run freely. b. we should protect famous ancient buildings during
installation. c. the installation does not affect the traffic.
The distance between air outlet of outdoor unit and the opposite object should
be more than 1 meter, otherwise the machine would stop running because of overload
by heat yield failure.
If the outdoor unit was opposite the resident's door or window, you should
install the machine as far as possible away from the adjacent doors windows and plants,
and the distance shall not be less than the following values: for the rated cooling
capacity not more than 4.5KW, the distance should be 3m.; for the rated cooling
capacity more than 4.5KW, the distance should be 4m.
It should remember to avoid installing at places where the natural environment
is harsh, such as heavy fumes and wind, direct sunlight or high-temperature and heat,
together with the place where children easily reach.
3. The Unit:
When installing the air conditioner, the outdoor unit should be below the indoor
unit so as to facilitate circle of refrigerant and refrigeration oil .
The height difference between wall mounted indoor unit and the outdoor unit
is generally not more than 5 meters.
The connection pipe can't exceed 5 meters, and the longest is 10 meters. ⑵ when
the length exceeds 5 meters, 15g fluoride is required to be added for each exceeding
1m.

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4-1.Electrical wiring diagrams
4-1-1.INDOOR

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4-1-2. OUTDOOR
CN703
W
U
CN1 CN102
CN801
V
CN4 CN3
UR)
V（S）
W（C）
BK
BK
WH
BK
BU BN
YE/GN
FILTER
CN203
CN202
BU
BU
FAN MOTER
CN11(L1)
CN12(L2)
CN13(CAP+)
BK
GY
CN10
BN
CN7 CN6
YE/GN
CN704
CN702
CN701
N
RD
BU
BU BN
CN601
WHRD
GY BU RD BK WH YE
RD
WH
BU
YE/GN
YE/GN
WHT
BLK
YEL
RED
INPUT
OUTPUT YE/GN
FUSE
BK
BK
P
CN9

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4-2-1.THE PARAMETER OF OUTDOOR COMPRESSOR TEMPERATURE SENSOR:
（R0=187.25K±6.3%；R100=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 A37 34.84 1.8235 93 5E 93 4.678 4.0522 207 CF
-18 484 0.1984 10 A38 33.44 1.8713 95 5F 94 4.534 4.0760 208 D0
-17 457.9 0.2092 11 B39 32.11 1.9190 98 62 95 4.395 4.0992 209 D1
-16 433.3 0.2206 11 B40 30.83 1.9673 100 64 96 4.261 4.1218 210 D2
-15 410.2 0.2325 12 C41 29.61 2.0157 103 67 97 4.132 4.1439 211 D3
-14 388.5 0.2448 12 C42 28.45 2.0640 105 69 98 4.007 4.1655 212 D4
-13 368 0.2577 13 D43 27.34 2.1124 108 6C 99 3.886 4.1866 214 D6
-12 348.7 0.2712 14 E44 26.27 2.1612 110 6E 100 3.77 4.2070 215 D7
-11 330.5 0.2853 15 F45 25.25 2.2099 113 71 101 3.658 4.2269 216 D8
-10 313.4 0.2999 15 F46 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

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4-2-2. THE PARAMETER OF THE OUTDOOR COILAND OUTDOOR SENSOR：（R0=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

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4-2=3.THE PARAMETER OF THE INDOOR COIL AND INDOOR ROOM SENSOR：
TEMPERATURE A/D CONVERSION TABLE
T R V ad int-ad T R V ad int-ad
-20 152.5 0.1494911 7.6240458 8 30 11.99 1.4080288 71.809467 72
-19 143.9 0.1581427 8.0652759 8 31 11.47 1.4533086 74.118738 74
-18 135.8 0.1672598 8.5302491 9 32 10.98 1.4987245 76.434949 76
-17 128.3 0.1766917 9.0112782 9 33 10.51 1.5450362 78.796844 79
-16 121.1 0.1868045 9.527027 10 34 10.06 1.5921409 81.199187 81
-15 114.5 0.1971477 10.05453 10 35 9.634 1.6394586 83.61239 84
-14 108.2 0.2081488 10.615589 11 36 9.229 1.6871276 86.043506 86
-13 102.3 0.2196262 11.200935 11 37 8.842 1.7353419 88.502437 89
-12 96.73 0.2316869 11.816031 12 38 8.474 1.7838166 90.974647 91
-11 91.51 0.2442574 12.457125 12 39 8.123 1.8326445 93.464868 93
-10 86 0.2590959 13.213892 13 40 7.789 1.8816559 95.964449 96
-9 81.97 0.2711434 13.828314 14 41 7.47 1.9309778 98.479869 98
-8 77.62 0.2854713 14.559038 15 42 7.165 1.9806153 101.01138 101
-7 73.52 0.3004347 15.322168 15 43 6.875 2.0302376 103.54212 104
-6 69.05 0.3186441 16.250847 16 44 6.597 2.0801983 106.09011 106
-5 66.01 0.3323434 16.949512 17 45 6.333 2.1299737 108.62866 109
-4 62.58 0.3492866 17.813615 18 46 6.08 2.1799629 111.17811 111
-3 58.34 0.3727792 19.011739 19 47 5.838 2.2300247 113.73126 114
-2 56.29 0.3853091 19.650762 20 48 5.608 2.2797827 116.26892 116
-1 53.41 0.4044054 20.624677 21 49 5.387 2.3297313 118.8163 119
0 50.69 0.4242643 21.63748 22 50 5.177 2.379265 121.34251 121
1 48.12 0.4449072 22.690269 23 51 4.976 2.4286895 123.86317 124
2 45.7 0.4662698 23.779762 24 52 4.783 2.4781187 126.38406 126
3 43.41 0.4884639 24.911661 25 53 4.599 2.5271535 128.88483 129
4 41.25 0.5114255 26.082699 26 54 4.423 2.575907 131.37126 131
5 39.2 0.5353075 27.300683 27 55 4.255 2.6242323 133.83585 134
6 37.27 0.5599238 28.556112 29 56 4.093 2.6725805 136.3016 136
7 35.44 0.5854509 29.857997 30 57 3.939 2.7202222 138.73133 139
8 33.71 0.6118198 31.202812 31 58 3.792 2.7673104 141.13283 141
9 32.08 0.6389342 32.585644 33 59 3.65 2.8143713 143.53293 144
10 30.63 0.6651571 33.923012 34 60 3.515 2.8606208 145.89166 146
11 29.06 0.69609 35.500592 36 61 3.385 2.9066172 148.23748 148
12 27.68 0.7257566 37.013589 37 62 3.261 2.9518905 150.54641 151
13 26.36 0.7566001 38.586607 39 63 3.142 2.9966845 152.83091 153
14 25.12 0.7880617 40.191147 40 64 3.028 3.0408903 155.0854 155
15 23.84 0.8234057 41.993693 42 65 2.918 3.0847992 157.32476 157
16 22.82 0.8539244 43.550145 44 66 2.813 3.1279116 159.52349 160
17 21.76 0.888133 45.294785 45 67 2.713 3.1701066 161.67544 162
18 20.75 0.9233792 47.092338 47 68 2.618 3.2112599 163.77426 164
19 19.79 0.9595753 48.938342 49 69 2.524 3.2530454 165.90532 166
20 18.88 0.9966073 50.826972 51 70 2.436 3.2931614 167.95123 168
21 18.03 1.0338759 52.727673 53 71 2.36 3.3286119 169.75921 170

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22 17.21 1.0725696 54.70105 55 72 2.268 3.3725603 172.00057 172
23 16.44 1.1116367 56.693472 57 73 2.189 3.4112353 173.973 174
24 15.7 1.1519608 58.75 59 74 2.114 3.4487819 175.88788 176
25 15 1.1928934 60.837563 61 75 2.041 3.4861297 177.79261 178
26 14.33 1.2348923 62.979506 63 76 1.971 3.5227102 179.65822 180
27 13.7 1.2771739 65.13587 65 77 1.905 3.5579107 181.45344 181
28 13.1 1.3202247 67.331461 67 78 1.84 3.5932722 183.25688 183
29 12.53 1.3639002 69.558909 70 79 1.778 3.6276629 185.01081 185
80 1.719 3.6610064 186.71133 187

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5. . C CO ON NT TR RO OL L M MO OD DE E
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Control mode
1.Major general technical parameters
1 Conditionings for operation: Ambient temperatures: (-7 - +45 ℃), relative humidity
(30 - 95%).
2 Remote receiver distance: 8 m.
3 Remote receiver angle: In the distance 5M, over 60 degrees.
4 Temperature control accuracy: ±1℃.
5 Time error: Less than 3%.
6 The power supply for the air conditioner is a.c 220~240V, 50Hz, with its fluctuation
in the range of (160 – 264 V).
2、Display of the indoor unit
Timer Indicator ：It lights up during the setting timer mode.
Run Indicator：It is on during operation. It flashes within 10s after the sleep mode
has been setted.
Sleep indicator：It lights up when the sleep mode is being setted and within 10s
after the sleep mode has been setted.
Compressor indicator：It lights up when compressor is running
All the displays will be Off after the sleep mode has been setted for
10s unless the sleep mode is canceled.
Displaying Scheme:
1. Timer: the timer value is displayed according to the data from the remote controller.
2.Temperature: the setting temperature value is displayed according to the data from
the remote controller. “— —” is displayed when dehumidifying mode and air blowing
mode value.
3.Display of error codes:
An error code is displayed according to the signal from the indoor CPU. The error
code will flash for 5 seconds while displayed.
Error codes will be displayed at the displaying area for setting temperature.
3. Sleep
3..1 In the heating, cooling or dehumidifying mode, press the “Sleep” button on the
remote controller to start or cancel the sleep function in turn, and at the same time
the sleep icon on the display screen will be on or off accordingly.
3.2In the heating mode, the set temperature will decrease by 1℃one hour after the
sleep function is started. After 3 more hours operation, the temperature decreases by
3℃further.
3.3 In the cooling mode, the setting temperature will rise by 1℃one hour after the
sleep function is started. After 1 more hours operation, the temperature decreases by
1℃further. If Troom t＞26℃, the setting temperature do not change.
4.1 Automatic run mode
Press the emergency button or use remote controller to set this mode. .
For heating pump machine:

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a. When Troom t＞26℃，it starts in the cooling mode, temperature being set at 26℃
b. When 23℃＜Troom≤26℃，it starts in the dehumidify run mode;
c. When 21℃＜Troom≤26℃, it starts in the ventilation mode.
d. WhenTroom≤21℃, it starts in the heating mode, temperature being set at 22℃
In this Automatic run mode , based on the automatic setting temperature ,the set
temperature can only be changed 2 ℃(up & down)
Once the machine being shutdown , after 5 minutes stopping period ,the running
mode would be set again base on the room temperature .
4.2Cooling-run mode
4.2.1 Temperature compensation
Principle for compensation: The compensation is available only if the proper
sensor is used and it is not available when it is subject to the sensor on the
remote controller.
4.2.2 Outdoor Fan
The outdoor fan’s speeds are divided into two levels which can be changed over
according to outdoor ambient temperatures.
When operating at a fixed frequency, the outdoor fan is forced to operate at the
high speed.
4.2.3 Indoor fan
When the fan speed is set at the high, medium and low fan speeds, the fan runs at a
preset speed. When the fan speed setting is automatic, the fan speed is set based on
the difference in room temperatures.
Troom-Tset Indoor fan speed
Troom-Tset≤20C Low
20C <Troom-Tset<40C Medium
Troom-Tset≥40C High
4.2.4 Prevention against condensation and insufficient heat exchange at the low
indoor fan speed.
When the indoor fan speed is set at the low fan speed, the compressor’s power is
restricted as in the low temperature cooling.
4.2.5 4-way valve
State: It is interrupted in cooling.
Switchover: When initially powered on for cooling, the 4-way valve is interrupted
immediately.
When the heating is changed to the cooling, it needs an interval of 50 seconds for the
4-way valve to change over from being activated to being interrupted.
4.2.6 Cooling-pre mode
When start machine in cooling mode, the flaps will switch to cooling-pre angle,

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blowing 15 minutes then back to original cooling angle. Default fan speed is high but
speed and flaps angle can be controlled.
4.2.7 Anti-freeze protection
4.2.7.1 Condition for anti-freeze interruption: When the indoor heat exchanger
temperature is below the Anti-freeze Interruption Temperature（2℃） and maintains
for 10 s, the system is interrupted for the anti-freeze.
Action of anti-freeze interruption: The compressor is interrupted, the outdoor fan
stops and the indoor fan remains running.
Condition for anti-freeze lift: When the indoor heat exchanger temperature rises to
the Anti-freeze Releasing Temperature(8℃), the anti-freeze interruption is lifted.
4.2.8 Compressor discharge temperature too high protection
4.2.8.1 Conditions for the compressor discharge interruption protection: The
compressor discharge temperature is above or equal to 1150C，and remains for 20 s，
the compressor discharge interruption protection is activated.
Action of the compressor discharge interruption protection: Prompts are made on the
indoor display screen and with the outdoor indicator light and the compressor stops.
Conditions for the compressor discharge interruption protection lift: When the
compressor discharge temperature drops below 920C, the compressor discharge
interruption protection is lifted.
4.2.9 Overcurrent protection in cooling:
4.2.9.1 Conditions for overcurrent protection: When the current rises above or at the
Interruption Current Value for the Cooling Current Protection（23A）and maintains for
10 s, the overcurrent protection is activated.
Action of the overcurrent protection: Prompts are shown on the screen on the indoor
unit and by the indicator light on the outdoor unit. The compressor stops.
Conditions for overcurrent protection lift: When the current drops below the Value of
the Current for the Cooling Current Protection Lift（16A,）, the overcurrent protection
is lifted.
4.3 Heating-run mode
4.3.1 Temperature compensation
Principle for compensation: The compensation is available only if the proper sensor is
used and it is not available when it is subject to the sensor on the remote controller or
line controller.
4.3.2 Indoor fan
The fan speed is set at the high, medium or low fan speed, it operates at a preset
speed (in the cold air prevention, it is forced to run at the ultra-low flowrate or stop).
When the fan speed is set in the auto-run, the fan speed setting is made according to
the room temperature differences (except for the cold air prevention).

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Tset-Troom Indoor Fan Speed
Tset-Troom≤20C Low
20C <Tset-Troom<40C Medium
Tset-Troom≥40C High
4.3.3 Cold air prevention
In the heating-run, to prevent the indoor fan from blowing cold air, the indoor fan
speed is controlled as illustrated below:
35℃ Set fan speed
Down Set fan speed Up
30℃ low fan speed
ultra-low speed
25℃ stop
stop
4.3.4 Residual heat blowing off
When the compressor is turned off in the heating run, the indoor fan does not stop at
once, continue running for 30 seconds at last.
4.3.5 Outdoor fan
The outdoor fan speeds are divided into three levels which can be changed over
according to outdoor ambient temperatures.
4.3.6 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.
4.3.7 Overload control
4.3.7.1 Conditions for the system to be interrupted on overload: When the indoor heat
exchanger temperature is higher than or equal to the Interrupting Temperature for
Overload Protection 65℃, and maintains for 10 s, the overload control is activated to
interrupt the system.
Action of the overload interruption: The compressor is interrupted, the outdoor fan
stops and the indoor fan keeps running or operates for cold air prevention.
Conditions for overload interruption lift: When the indoor heat exchanger temperature
drops below the Temperature for Overload Protection Lift 47℃, the overload control

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Tset
interruption is lifted.
4.3.8 Overcurrent protection in heating
Same as cooling.
4.3.9 The compressor discharge temperature too high protection
Same with the cooling-run mode.
4.3.10 Defrost
4.3.10.1 Conditions for the judgment for frosting
Condition 1: The compressor has been kept operating for a certain time (50 minutes)
Condition 2:
When Toutdoor ambient≥3℃, Toutdoor condenser ≤-3℃, and maintains for 5 minutes.
When Toutdoor ambient< 3℃, Toutdoor ambient-Toutdoor condenser ≥7℃, and maintains for 5
minutes.
If both conditions set out above are met at the same time, then it is judged that
frosting has taken place.
4.3.10.2 Defrosting operation
The outdoor fan stops;
The compressor’s operating frequency drops , the 4-way valve is closed, and then
goes up at a certain frequency for operation.
4.3.10.3 Conditions for the Completion of Defrosting
The defrosting run lasts for more than a certain time(12 minutes).
The outdoor coils temperature ≥120C
If either of the above conditions is met, it judges that frosts have been cleared off.
4.310.4 Operations to end defrosting
The compressor frequency goes down at a rate, and the compressor get interrupted;
50 s later the 4-way valve opens up, and 10 s more both the compressor and the
outdoor fan restarts in normal operation.
4.4 Dehumidifying mode
In this mode, the fan speed being set at low and the function of fan speed changing
not active.
The dehumidifying mode is illustrated as follows:
Indoor Ambient Temperature

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160C
Dehumidifying area I: Operation at the frequency in the range (25 – 80 Hz) according
to ∆t (Tindoor ambient-Tset).
∆t(℃) f(Hz)
0 25
0.5 30
1 40
1.5 50
≥2 60
Efficient 80
Dehumidifying area II: The compressor stops for 5 minutes and operates for 5
minutes at the lowest frequency.
Dehumidifying area III: The compressor stops.
4.5. Air Blowing mode
The outdoor unit does not work while the indoor fan runs with the fan speed
selectable at the auto, low, medium and high speeds.
When being auto, the fan speed is determined in the cooling mode
The high, medium and low fan speeds are same with that in the cooling mode.
4.6 Compressor operating state indication
When the compressor is in operation, The 3 LED indicator lights on the control
panel of the outdoor unit indicates the causes of the restriction on the
compressor’s current operating frequency.
Symbols for indicator light:: ★: ON Ο: flashing ×: OFF
LED2 LED3 LED4 The cause of the restriction on the compressor’s current operating
frequency
Time
I II III