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Haier 1U71SABFRA, Service Manual

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Haier 1U71SABFRA Service Manual Download Page 49

Performance and curves diagrams

                                                                                                                   

                 

Domestic air conditioner

11.3 Cooling discharge pressure curves 

4 7

outdoor temp.

(humidity 46%)

DB/WB

21/15

27/19

35/24

10

1899

2010

2107

15

1949

2037

2141

20

1976

2064

2178

25

2079

2144

2287

30

2211

2385

2478

35

2429

2546

2674

38

2615

2734

2901

40

2940

3082

3234

43

3359

3484

3650

performance curves

cooling discharge pressure.table

indoor temp.

1000

1500

2000

2500

3000

3500

4000

10

15

20

25

30

35

38

40

43

d

isch

a

rg

e

p

re

ssu

re

(K

p

a

)

outdoor temp.(DB/WB)

cooling discharge pressure and temp. curves

21/15

27/19

35/24

Summary of Contents for 1U71SABFRA

Page 1: ...ial dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or Repair the product or products dealt with in this service information by anyone else could result in serious injury or death WARNING Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorized copyin...

Page 2: ...n 1 2 Specifications 7 3 Sensors list 8 4 Piping diagrams 9 5 Operation range 10 6 PCB Diagram 11 7 Functions and Control 8 Dimensional drawings 9 Conter of gravity 10 Service Diagnosis 11 Performance and cerves diagrams 12 Circuit diagrams 15 45 31 30 30 53 ...

Page 3: ...ame explanation 1 1 U 7 S A B F A R The maximum combination number Type of outdoor unit U normal type Nominal cooling capacity 7100W Platform of outdoor units S S platform Australia Version number Heat pump R32 refrigerant DC inverter Apply toT1 220 240V50Hz 1P h 1 ...

Page 4: ...et before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrige...

Page 5: ...e welder in an enclosed room can cause oxygen deficiency 1 2 2 Cautions Regarding Products after Repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equ...

Page 6: ...dified power cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 410A R22 in the refrigerant system If air enters the cooling system an excessively high pressure results causing equipment damage and injury If the refrigerant gas leaks be sure to lo...

Page 7: ... an electrical shock or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damaged cable and wires can cause an electrical shock excessive heat generation or fire Warning Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive heat generation or fir...

Page 8: ...e attention of the reader to specific information The meaning of each icon is described in the table below 1 2 5 Using Icons List Icon Type of Information Description Note Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution Caution A caution is used when there is danger that the reader through incorrect manipulat...

Page 9: ...CIFICATIONS PARTS g n i t a e h g n i l o o c Compressor r o s s e r p m o C y r a t o R e p y T l e d o M 1800 W t u p t u o r o t o M Oil type 0 5 L e m u l o v e g r a h c l i O Fan n a f l a i x A e p y T 93 93 W t u p t u o r o t o M 3400 h m h g i h e t a r w o l f r i A m p r w o l h g i h d e e p S Heat exchanger Type ML fin 7HI HX tube 4 1 34 2 5 h c t i f e g a t s w o R 7 GTD186UKQA8JT6...

Page 10: ...o adjust gas flowing 1 Defrosting sensor Its used for controlling outdoor defrosting at heating mode t a e h r e v o f o e s a c n i r o s s e r p m o c r o f d e s u s t I r o s n e s Discharging Conversation formulae Kcal h KW 860 Btu h KW 3414 cfm m min 35 3 8 TECHNICAL SPECIFICATIONS OTHERS Refrigerant circuit Refrigerant type R32 Refrigerant charge KG 1 45 Refrigerant control EXV Piping conne...

Page 11: ...Pinping diagrams Domestic air conditioner 4 Pinping diagrams Filter Filter ...

Page 12: ...Operation range Domestic air conditioner 5 Operation range 10 0 20 16 32 10 20 15 10 ...

Page 13: ... the module board 10 CN36 Connector for communicate between indoor and outdoor unit 11 CN15 Connector for electric expansion valves 12 CN50 Connector for DRED control 13 CN45 Connector for heating protect wire of terminal block Other Designations 1 FUSE 1 25A 250VAC FUSE 2 3 15A 250VAC 2 LED 1 Keep light representative normal if keep flash interval representative trouble Alarm 3 RV1 RV2 RV3 Varist...

Page 14: ...Connector Wiring Diagram Domestic Air Conditioner 12 PCB 1 CN1 CN2 CN36 CN24 CN10 CN9 CN22 CN11 CN17 CN50 CN47 CN23 CN25 CN28 CN3 CN15 CN7 CN6 CN45 ...

Page 15: ...CN4 CN3 CN10 CN1 CN2 CN9 CN7 CN6 CN5 CN8 CN11 Connector Wiring Diagram Domestic Air Conditioner 13 PCB 2 ...

Page 16: ...COMPRESSOR OUTDOOR UNIT WIRING DIAGRAM M AC N OUT ELECTRIC EXPANSION WARNING CAUTION AC N OUT AC L OUT AMBIENT TEMP SENSOR TEMP SENSOR COMP TEMP SENSOR TEMP SENSOR TEMP SENSOR DEFROST 1 DEFROST COMP TEMP SENSOR 2 AMBIENT BL OR CN3 CN1 CN4 CN2 AC N REACTOR GR LI AC L GR L0 MOUDLE PCB CN5 CN6 CN7 W U B V W R CN8 CN9BL CN10 P N CN11 B S V R U C W CN1 AC N FUSE1 N OUTDOOR PCB TEMP SENSOR SUCTION CS CN...

Page 17: ...uency for protection should be prior to the calculated frequency The speed of increasing or decreasing the frequency rapidly 1 1HZ second The speed of increasing or decreasing the frequency slowly 2 1HZ 10seconds 1 ǃThe minimum maximum frequency limitation AˊWhile refrigerating ˢˉ ˉ is the maximum operation frequency of the compressor ˢˉ INˉ is the minimum operation frequency of the compressor BˊW...

Page 18: ...ěKi the number of running machines The calculation of the actual output frequency when there is no healthy airflow F F ED hPhK When the healthy airflow has been set F F ED hPhK airflow speed hK healthy airflow When refrigerating it is needed to satisfy ˢˉ INˉ F ˢˉ ˉ When heating it is needed to satisfy ˢˉ INˉr F ˢˉ ˉr 7 1 2 The outdoor fan control exchange fan When the fan is changed among every a...

Page 19: ...g four way valve control see the defrosting process Four way working in other ways Under the mode of heating open the four way valve when the compressor is not started or changed to non heating mode make sure the compressor is stoped for 2 minutes and then close the four way valve Domestic air conditioner 17 17 During the compressor is started for 3 seconds the outdoor fan is controlled the airflo...

Page 20: ... one cycle of procedure run is one time and about 5ms detection method for each time continuously sampling for 8 times then order them and take the mean value of the middle 2 values take the mean value TTC ć Abnormal stop 115 Decreasing the frequency rapidly 1HZ second 110 Decreasing the frequency slowly 1HZ 10seconds 105 The frequency doesn t change 98 Increasing the frequency 1HZ 10second 95 Inc...

Page 21: ...oor environment temperature is higher than 50ć AC current protection value decreases by 3 5A Domestic air conditioner 19 7 1 5 2 TC high temperature preventing control of the indoor heating unit Tpg_indoor is the highest value of the effective indoor unit start it and it is in accord with the running state The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger If the t...

Page 22: ... ice_temp_4ć the compressor recovers Domestic air conditioner 20 7 1 5 4 Antifreezing protection of the indoor heat exchanger When refrigerating heating prevent freezing Tpg_indoor is the minimum value of the effective indoor unit start it and it is in accord with the running state 11ć ice_temp_4 2 9ć ice_temp_4 Increasing slowly 9ć ice_temp_3 2 Keeping the frequency ice_temp_3 7ć 6ć ice_temp_2 5ć...

Page 23: ...118 2434 1 91 1 73 27 138 1285 124 3392 111 8256 1 89 1 71 21 7 1 5 5 Temperature protection of the outdoor refrigerating coil When the defrosting temperature and the sensor s temperature are higher than 68ć the frequency of the compressor decreases 1hz 10seconds Keep the frequency until it decreases to the lowest frequency When the temperatures are lower than 68ć and higher than 61ć keep the freq...

Page 24: ...9 6112 1 49 1 40 6 43 5912 40 5800 37 7429 1 47 1 39 5 41 4249 38 6207 35 9739 1 45 1 37 4 39 3792 36 7676 34 2983 1 43 1 35 3 37 4465 35 0144 32 7108 1 41 1 33 2 35 6202 33 3552 31 2062 1 38 1 31 1 33 8936 31 7844 29 7796 1 36 1 29 0 32 2608 30 2968 28 4267 1 34 1 28 1 30 7162 28 8875 27 1431 1 32 1 26 2 29 2545 27 5519 25 9250 1 29 1 24 3 27 8708 26 2858 24 7686 1 27 1 22 4 26 5605 25 0851 23 67...

Page 25: ... 9687 5 7007 1 21 1 18 39 6 0170 5 7454 5 4812 1 25 1 22 40 5 7997 5 5316 5 2712 1 29 1 25 41 5 5914 5 3269 5 0704 1 33 1 29 42 5 3916 5 1308 4 8783 1 37 1 33 43 5 2001 4 9430 4 6944 1 41 1 36 44 5 0163 4 7630 4 5185 1 45 1 40 45 4 8400 4 5905 4 3500 1 49 1 44 46 4 6708 4 4252 4 1887 1 53 1 47 47 4 5083 4 2666 4 0342 1 57 1 51 48 4 3524 4 1145 3 8862 1 61 1 55 49 4 2026 3 9686 3 7443 1 65 1 59 50 ...

Page 26: ... 22 2 97 84 1 3730 1 2525 1 1415 3 27 3 01 85 1 3335 1 2153 1 1066 3 32 3 06 86 1 2953 1 1794 1 0730 3 38 3 10 87 1 2583 1 1448 1 0405 3 43 3 15 88 1 2226 1 1113 1 0092 3 48 3 19 89 1 1880 1 0789 0 9789 3 53 3 24 90 1 1546 1 0476 0 9497 3 58 3 28 91 1 1223 1 0174 0 9215 3 64 3 33 92 1 0910 0 9882 0 8942 3 69 3 37 93 1 0607 0 9599 0 8679 3 74 3 42 94 1 0314 0 9326 0 8424 3 80 3 46 95 1 0030 0 9061 ...

Page 27: ...6 7474 2 90 2 42 24 9687 0270 8074 3787 6724 1389 2 88 2 41 23 9057 2314 7564 2244 6311 6413 2 87 2 41 22 8472 2852 7089 4741 5927 0206 2 86 2 40 21 7928 7217 6647 4547 5568 2222 2 84 2 39 20 7423 3626 6235 7109 5233 3554 2 83 2 39 19 6953 2930 5851 9864 4920 6791 2 82 2 38 18 6515 8375 5494 2064 4628 5894 2 80 2 37 17 6108 5393 5160 4621 4355 6078 2 79 2 37 16 5729 1413 4848 9963 4100 3708 2 77 2...

Page 28: ...65 2 24 2 02 18 807 3024 723 4134 647 6580 2 22 2 00 19 766 4212 687 8205 616 7252 2 20 1 99 20 727 8172 654 1596 587 4271 2 18 1 98 21 691 3524 622 3161 559 6694 2 16 1 96 22 656 8979 592 1831 533 3634 2 14 1 95 23 624 3328 563 6604 508 4261 2 12 1 93 24 593 5446 536 6540 484 7796 2 10 1 92 25 564 4275 511 0760 462 3510 2 09 1 90 26 536 9865 486 9352 441 1516 2 07 1 89 27 511 0105 464 0500 421 02...

Page 29: ...04 8443 99 7046 94 7315 1 28 1 23 63 100 6112 95 7939 91 1253 1 25 1 21 64 96 5692 92 0553 87 6735 1 23 1 19 65 92 7088 88 4805 84 3690 1 20 1 17 66 89 0211 85 0614 81 2048 1 18 1 15 67 85 4976 81 7908 78 1744 1 15 1 12 68 82 1303 78 6615 75 2715 1 13 1 10 69 78 9116 75 6668 72 4902 1 10 1 08 70 75 8343 72 8004 69 8249 1 08 1 06 71 72 8916 70 0561 67 2703 1 05 1 03 72 70 0770 67 4283 64 8213 1 03 ...

Page 30: ...7 108 20 3091 19 1582 18 0563 1 89 1 81 109 19 6899 18 5564 17 4723 1 93 1 85 110 19 0924 17 9761 16 9098 1 98 1 89 111 18 5157 17 4166 16 3680 2 02 1 93 112 17 9590 16 8769 15 8458 2 06 1 96 113 17 4214 16 3564 15 3427 2 10 2 00 114 16 9023 15 8542 14 8577 2 15 2 04 115 16 4010 15 3696 14 3902 2 19 2 08 116 15 9167 14 9020 13 9394 2 23 2 12 117 15 4489 14 4506 13 5047 2 27 2 16 118 14 9968 14 014...

Page 31: ...901 8 7441 8 0495 3 05 2 84 135 9 2322 8 4993 7 8175 3 09 2 88 136 8 9824 8 2623 7 5931 3 14 2 92 137 8 7404 8 0329 7 3760 3 19 2 96 138 8 5059 7 8108 7 1660 3 24 3 00 139 8 2787 7 5958 6 9629 3 29 3 04 140 8 0584 7 3875 6 7664 3 33 3 09 Domestic air conditioner 29 ...

Page 32: ...Dimensinal drawings Domestic air conditioner 8 Dimensional drawings 9 Center of gravity 920 1018 762 385 385 920 12 7 3 4 920 288 762 374 385 132 30 ...

Page 33: ...B is broken Operation sometimes stops Check the power supply A power failure of 2 to 10 cycles can stop air conditioner operation Equipment operates but does not cool or does not heat only for heat pump Check for faulty operation of the electronic expansion valve Set the units to cooling operation and compare the temperatures of the liquid side connection pipes of the connection section among room...

Page 34: ... 5 Compressor overload F19 6 Power voltage is too high or low F27 7 Compressor blocked F4 8 Overheat protection for Discharge temperature F8 9 Outdoor DC fan motor fault F21 10 Defrost temperature sensor failure F7 11 Suction temperature sensor failure F6 12 Ambient temperature sensor failure F25 13 Discharge temperature sensor failure F30 14 Suction temp of compressor is too high F13 16 Less gas ...

Page 35: ...normal Indoor Display E4 indoor EEPROM error Outdoor display F12 Outdoor EEPROM error Outdoor LED1 flash 1 times 10 10 10 10 10 10 10 10 3 3 10 10 10 10 10 10 10 Indoor AC fan motor malfunction Indoor display E14 This is caused by indoor motor or indoor PCB fault ...

Page 36: ...10 3 4 Outdoor DC fan motor fault Outdoor display F8 LED1 flash 9 times Seivice diagnosis Domestic air conditioner 34 ...

Page 37: ...n Outdoor display Seivice diagnosis Domestic air conditioner 35 Under this error please ensure the refrigerating system pressure is normal and no block then replace power module F1 LED1 flash 2 times F22 LED1 flash 3 times ...

Page 38: ...10 3 6 Over current of the compressor Outdoor Display Domestic air conditioner 36 Seivice diagnosis F2 F23 LED1 flash 24 or 25 times ...

Page 39: ...10 3 7 The communication fault between IPM and outdoor PCB Outdoor display Seivice diagnosis Domestic air conditioner 37 F3 LED1 flash 4 times ...

Page 40: ...10 3 8 Power Supply Over or under voltage fault Outdoor display Domestic air conditioner 38 Seivice diagnosis F19 LED1 flash 6 times ...

Page 41: ...10 3 9 Overheat Protection For Discharge Temperature Outdoor display Seivice diagnosis Domestic air conditioner 39 F4 LED1 flash 8 times ...

Page 42: ...10 3 10 The communication fault between indoor and outdoor Indoor display E7 Outdoor display LED1 flash 15 times Domestic air conditioner 40 Seivice diagnosis ...

Page 43: ...Seivice diagnosis Domestic air conditioner 41 ...

Page 44: ...Seivice diagnosis Domestic air conditioner 42 ...

Page 45: ...Seivice diagnosis Domestic air conditioner 43 ...

Page 46: ...nosis Domestic air conditioner 44 10 3 11 Outdoor Display F11 LED1 flash 18 times 10 3 12 Outdoor Display F28 LED1 flash 19 times Compressor loss of synchronism detection Compressor position detection circuit fault ...

Page 47: ...104 6020 5776 4 5390 5180 4956 4610 27 19 6804 6720 6454 6370 6098 4 5740 5460 5180 4830 30 22 7084 7000 6762 6552 6300 5950 5740 5524 4 5220 32 23 7504 7420 7308 6888 6650 6440 6126 4 5824 5570 35 24 8072 7840 7798 7336 7000 6720 6412 6160 5950 performance curves cooling value temerature table outdoor temp 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 cooling capacity W cooling capacity and i...

Page 48: ...1753 1840 1935 2048 2135 2200 2240 27 19 1681 1731 1780 1860 1973 2105 2185 2257 2297 30 22 1738 1784 1852 1926 2030 2162 2275 2332 2372 32 23 1780 1840 1905 1980 2086 2257 2389 2472 2512 35 24 1815 1897 1995 2096 2143 2313 2427 2534 2570 performance curves power consumption temp table outdoor temp 1500 1700 1900 2100 2300 2500 power consumption w indoor tempe DB WB power consumption and temp curv...

Page 49: ... 1949 2037 2141 20 1976 2064 2178 25 2079 2144 2287 30 2211 2385 2478 35 2429 2546 2674 38 2615 2734 2901 40 2940 3082 3234 43 3359 3484 3650 performance curves cooling discharge pressure table indoor temp 1000 1500 2000 2500 3000 3500 4000 10 15 20 25 30 35 38 40 43 discharge pressure Kpa outdoor temp DB WB cooling discharge pressure and temp curves 21 15 27 19 35 24 ...

Page 50: ...1 15 27 19 35 24 10 9 2 0 1 6 8 8 7 5 7 15 0 4 0 1 5 9 8 5 6 7 20 0 5 0 1 3 1 9 2 7 7 25 2 7 0 1 2 2 9 3 1 8 30 2 8 0 1 1 7 9 6 5 8 35 9 3 1 1 1 8 9 4 6 8 38 910 1011 1163 40 1001 1112 1279 43 1101 1201 1394 indoor temp performance curves cooling suction pressure table suction pressure Kpa cooling suction pressure and temp curves ...

Page 51: ...7 5158 7 8 7920 7181 6289 2 1 9780 8722 7663 7 6 9629 8477 7481 12 11 9417 8268 6892 18 16 7209 6537 5727 24 20 5941 5252 4698 performance curves heating capacity and indoor outdoor temp table indoor temp humidity 46 3000 4000 5000 6000 7000 8000 9000 10000 conoling capacity w outdoor tempe DB WB heating capacity and indoor outdoor temp curves 10 C 20 C 27 C ...

Page 52: ...50 outdoor temp DB WB 10 20 27 15 1972 2141 2277 10 2216 2366 2515 7 8 2424 2669 2800 2 1 2578 2804 2988 7 6 2303 2535 2660 12 11 1894 2021 2149 18 16 1515 1617 1719 24 20 985 1084 1205 performance curves power consumption value temp table indoor temp humidity 46 500 1000 1500 2000 2500 3000 consumption w 10 20 27 ...

Page 53: ...3 1 1 4 3 9 5 2 3 2 1 3 8 8 3 8 9 6 3 1 6 4 3 7 6 2 7 6 3 0 9 5 3 9 0 4 3 12 11 6 0 6 3 2 8 4 3 6 4 3 3 18 16 1 5 3 3 3 7 2 3 8 9 0 3 24 20 3 2 9 2 2 8 7 2 8 3 6 2 performance curves heating discharge pressure table indoor temp 1000 1500 2000 2500 3000 3500 4000 15 10 7 8 2 1 7 6 12 11 18 16 24 20 discharge pressure Kpa outdoor temp DB WB heating discharge pressure and temp curves 10 20 27 ...

Page 54: ... 5 2 3 5 2 9 4 2 1 0 7 6 1 5 6 1 1 6 7 6 3 0 8 4 8 7 4 4 7 12 11 4 0 9 4 8 8 4 4 8 18 16 1011 1051 1071 24 20 1197 1237 1257 performance curves heating suction pressure table indoor temp 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 15 10 7 8 2 1 7 6 12 11 18 16 24 20 suction pressure Kpa outdoor temp DB WB heating suction pressure and temp curves 10 20 27 ...

Page 55: ...Circuit diagrams Domestic air conditioner 12 Circuit diagrams 12 1 Outdoor unit control board Circuit Diagrams 53 ...

Page 56: ...Circuit diagrams Domestic air conditioner 54 ...

Page 57: ... 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 IC1 R5F562T7DDFK 5V R020 10K R021 10K R010 4 7K R025 10K 5V 5V 1 2 3 JP2 5V R001 10K TR4 MMBT9012 2SA1037AK R027 10K R028 2K R026 2K P N VUFB VP UN VVFB VWFB WP UP VP1 VN1 WN VNC VN FO CIN VNC VNO U V W 2 3 4 5 6 7 8 9 10 11...

Page 58: ...s Domestic air conditioner Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China_ Http www haier com Edited by Signed by Approved by Zhen Lingyun He Shiquan Zhang Jing Zhang Xianqiang ...

Page 59: ...rs in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or Repair the product or products dealt with in this service information by anyone else could result in serious injury or death WARNING 2014 Qingdao Haier Air Conditioner General corp Ltd All rights reserved Unauthorized copying an...

Page 60: ...nditioner 1 Removal of Outdoor panel Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the panels 1 Loosen the 8 screws and lift the top panel ...

Page 61: ...Removal of procedure 2 Domestic air conditioner Step Procedure Points 2 Loosen the screws of the panel pull and remove the front panel ...

Page 62: ...r conditioner 2 Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the fixing screws Than lift the electrical box ...

Page 63: ...re Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Loosen the fixing screw and remove the fan Put the head wire through the back of the motor when assembling so as not to be entangled with the propeller fan ...

Page 64: ...Removal of procedure 5 Domestic air conditioner Step Procedure Points 2 Loosen the fixing screws and remove the fan motor ...

Page 65: ...ner 4 Removal of fan motor bracket and partition Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Loosen the fixing screws and remove the fan motor bracket ...

Page 66: ...re 7 Domestic air conditioner Step Procedure Points 2 Loosen the fixing screws the partition plate has a hook on the lower side than lift and pull the proof plate When assembling fit the lower hook into the bottom frame ...

Page 67: ... of compressor and heat exchanger Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Cut down the concenting pipe and put out the compressor and remove the valve bracket ...

Page 68: ...Removal of procedure 9 Domestic air conditioner Step Procedure Points 2 Loosen the marked fixing screws and remove the heat exchanger ...

Page 69: ...means for disconnection must be incorporated in the Make sure installation is done according to local wiring regulation by professional persons A leakage explosion proof breaker must be installed Make sure ground connection is correct and reliable Read the precautions in this manual carefully before operating the unit This appliance is filled with R32 Do not use means to accelerate the defrosting ...

Page 70: ...oller on a wall place where the indoor unit can receive signals when the uorescent lamps in the room are lightened Outdoor Unit Place which is less affected by rain or direct sunlight and is suf ciently ventilated Place possible to bear the unit where vibration and noise are not increased Place where discharged wind and noise do not cause a nuisance to the neighbors Place where a distance marked i...

Page 71: ...plate rst xed for the 2 Making a Hole on the Wall and Fitting the Piping Hole Cover G Drawing of pipe 3 Installation of the Indoor Unit Rear piping Draw pipes and the drain hose then fasten them with the adhesive tape Left Left rear piping In case of left side piping cut away with a nipper the lid for left piping In case of left rear piping bend the pipes according to the piping direction to the m...

Page 72: ...ce port into the projection of charge hose Iow for gaugemanifold Then connect the projection of charge hose center for gau gemanifold into vacuum pump Open the handle at Iow in 2 gaugemanifold operate vacuum pump If the scale moves of gause Iow reach vacuum condition in a moment check 1 again Vacuumize for over 15min And check the level gauge which should read 0 1MPa 3 76 cm Hg at Iow pressure sid...

Page 73: ...pe Rigid type Wing nut type Imperial type A 0 0 5mm 1 0 1 5mm 1 5 2 0mm rth leakage breaker 4 Flare pipe Lean Damage of are Crack Partial Too outside t c e r r o c n I t c e r r o C On Drainage It becomes high midway The gap with the ground is too smal There is the bad smell from a ditch It waves The end is imm ersed in water Please install the drain hose so as to be downward slope without fail Pl...

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