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SERVICE MANUAL

1. 66 B H ailer Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Indoor circuit diagram 67 B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 11 3 Sensor part number and their resistor value 1 R25 10K0 3 25 50 3700 3 0010451513 001 900059 2 R25 23KQ 2 5 25 50 4200 3 1 R25 10K0 3 25 50 3700 3 coil temp sensor 001A3900059 2 25 23 2 5 25 50 4200 4 am 25 80 4
2. CIRCUIT CNS BOARD 18000 CN7 220VAC N BTU sw5 5 SW5 6 22000 ON BTU sws 5 SW5 6 TOCI PIPING TEMPERATURE SENSOR CONDENSING TEMPERATURE SENSOR Y G B TS COMPRESSOR INHALE SENSOR TA AMBIENT TEMPERATURE SENSOR N 1 2 L N vie TD COMPRESSOR VENT SENSOR DEFROSTING TEMPERATURE SENSOR OR ORANGE BLACK BL BLUE YIG YELLOW GREEN W WHITE Indoor Units To Power Supply Wall mounted unit wiring diagram A4 ION GENERATOR CN13 5 swo1 LED2 LED1 TEMPER CN24 CN25 ATURE M R LED CN11 SENSOR CN8 CN12 CN9 o CN16 CN17 CN20 CN100 FUSE1 CN2 mE 250 gt SWING 5 W CN18 CN19 21 CN22 MOTOR w w w R 2201 3 4 903 c AC FAN MOTOR ry SWING SWING SWING Y G TO OUTDOOR PIPING MOTOR MOTOR MOTOR ULTRAVIOLET FRESH UNIT TEMPER RADIATION SENSOR NOTE B BLACK BR BROWN AMBIENT WHEN THE UNIT HAS NOT THE R RED WHITE FUNCTION OF HEALTH WITHOUT TEMPERATURE BESIUE YNCLLOW SENSOR THE PARTS IN THE DOTTED LINE 65 H alier Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 11 2 Circuit diagram Outdoor circuit diagram
3. If there is the danger of the unit failing or overturning fix the unit with foundation bolts or with wire or other means If the location does not have good drainage place the unit on a level mounting base or a plastic pedestal Install the outdoor unit in a level position Failure to do so may result in water leakage or accumulation 18 B H Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Power source e Before inserting power plug into receptacle check the voltage without fail The power source is the same as the corresponded nameplate e Install an exclusive branch circuit of the power e Areceptacle shall be set up in a distance where the power cable can be reached Do not extend the cable by cutting it Matching of the indoor and outdoor units AU182XFERA Combination A B C Remark 07 12 09 12 E 12 12 07 07 07 07 07 09 07 07 12 1 3 07 09 09 07 09 12 09 09 09 09 09 12 AU222XFERA Combination A B Remark 07 14 4 2 09 12 09 14 1 12 O7 07 09 07 07 12 07 09 09 mE 1 3 07 09 12 09 09 09 09 09 12 09 12 12 WARNING Combinations those marked can not be applied where the temperature in winter is too low and in
4. 0010576926 CRANKCASE 4 WAY capacitor AC FAN MOTOR HEATER VALVE reactor CN26 LED1 capacitor M es P LED2 vie CN25 LED3 BL OR e mann I oo 1234 LEDS CN1 CN2 N L MH CN4 572 4w SW5 LEDS H onos CN3 CN6 c5 RO ooo SPDU om FUSE1 CN9 N Mm 250VAC T3 15A LT URN 9 is CONTROL 4 MY startup stop down e CN10 CIRCUIT e e BUS AAD swi sw2 en HIT m ACL LED1 BOARD SW3 SW4 R W B ON TD AR LED 12345678 Vv TE 0 wo AD SW5 ICN20CN19 18 CN17 CN16 CN15 CN14 CN13 COMPRESSOR PMV_A PMV_B PMV_C PMV_D DEBUG LED ZI CRIE CRIE LI LI SNE M Ww M POWER
5. peeds 104 950 1 1 ueuw Buneeu Jedns 104 050 Josues 1001 5 oj UBIY 00 s eunsseud ey HO IND edzes dH uonoejoJud eunjeJduue eBueuosip pue HS 104 08 yios uone naur eu ezi eeJ uiejs s ou eAuq 2 2 12 4 pinbij pue pinbij sdojs Wa sAs eu dn amp esodind 104 uo WEN Hed UIEN ie LOL oi 1 Nd LO uoneuejdxe uien 46 Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 9 Electrical Control Functions Outdoor electric control functions 1 Switch setting and functions No Item A8 Set in factory Switch function SW5 1 outdoor fan motor selection ON DC fan motor OFF AC fan motor C1 Switch function SW5 2 defrosting data setting ON 6degree OFF 8degree set when out of factory For the place where is easy to frost it is 6 degree for the place hard to frost it is 8 degree C2 Switch func
6. Pipe length when the compressor connects with two indoor units 0 30 12 Pipe length when the compressor connects with two indoor units 0 30 13 Pipe length when the compressor connects only one indoor unit 10 30 L1 L2 L3 Total liquid piping length 45 Drop between every two indoor units 5 Drop between the outdoor unit and the indoor unit 15 Drop between the outdoor unit and the indoor unit 10 El Refrigerant piping work 1 Selection of pipe e To this unit both liquid and gas pipes shall be insulated as they become low temperature in operation e Use optional parts for piping set or pipes covered with equivalent insulation material Liquid pipe 6 35 1 4 x 0 8mm Gas pipe 9 52mm 3 8 x 0 8mm 2 Connection of pipe e Apply refrigerant oil on half union and flare nut e To bend a pipe give the roundness as large as possible not to crush the pipe e Connecting the pipe of gas side firstly makes working easier 20 B H a lef Commercial Air Conditioner Model AU18 222XFERA 5072 092 122 Half union Flare nut Spanner Torque wrench Forced fastening without careful centering may damage the threads and cause a leakage of gas Pipe Diameter Fastening Torque Liquid Side 6 35mm 1 4 Gas Side 9 52mm 3 8 3 Attaching Drain Elbow e If the drain elbow is used please attach it as figure
7. ere 0621 266 052 062 ore 990 024 091 ove ove ove eve 062 266 092 062 ore 9 0 097 024 091 206 oee 981 ere 062 266 052 062 ore sso 097 022 091 952 972 ore see 0 62 956 092 062 ste 9 0 097 022 091 028 002 ooz see 062 96 052 062 ste 990 074 024 ost 082 022 022 pue 60 0 70 9 zee 062 9 6 062 062 oee 970 022 027 02 092 096 pue Bunooo zitzi 9 dee 106811 926 ose 062 022 9 0 022 022 021 9 2 Duneeu pue Durooo soe 062 9 6 092 062 oee 990 022 029 021 086 062 Duneeu pue vre 062i 926 osz 062 oge 9 0 022 069 oer 09 062 pue vL 70 V 69 020 662 092 062 081 9 0 007 699 091 292 902 502 e e 0204 28 052 062 set 9 0 002 999 ost Ove ove 581 zee 0201 128 092 oez cet 270 002 099 01 022 022 022 pue 0 0 0 22 020 092 022 061 270 089 099 02 086 082 Buneeu pue 21460 soe 020 osz 062 061 9 0 059 089 oct 062 062
8. pue 60460 MNN EEDE EEEN EEE Dugeeu pue buyooo _ amp 1 0 jurew Ajurew Ajurew jurew jurew Ajurew jurew jurew Ajurew Ajurew jurew jurew Ls eren dm Ext Leu 2i 20 20 60 20 70 5580 160 2x1 Ig 21 60 60 EI 21490100 60 60 20 2157070 M NN 6 6 6 6 eeinv 8 ozor ere osz ocez oer sso ooz oso ozr ose oee ___ 21360 60 60 2 2 0 uand e101 indu 6101 810 Ayoedeo ea erep erep erep 719977 AOH3N3 eay WM 833 uonegijddy SyunJoopul JOOPINO B H Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 13 Noise level c o Fes PP 556 885885558989 third octave band frequency Hz third octave band frequency Hz
9. Drain elbow 4 Cutting and Flaring work of piping e Pipe cutting is carried out with a pipe cutter and burs must be removed After inserting the flare nut flaring work is carried out JA Pipe diameter Size A 1 Liquid side 6 35mm 1 4 0 8 1 5 Gas side 9 52mm 3 8 1 0 1 5 Flare tooling dia Correct Incorrect Be Lean Damage of flare Crack Partial Too outside 5 On drainage Please install the drain hose so as to be downward slope without failure Please don t do the drainage as shown below 21 Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA y Less than 5 B D p 7 4 7 becomes high midway The end is immersed It waves It gap with the There is the bad in water ground ts too small smell from a ditch Please pour water in the drain pan of the indoor unit and confirm that drainage is carried out serely to outdoor In case that the attached drain hose is in a room please apply heat insulation to it without fail Purging method to use vacuum pump Liquid stop valve Detach the service port s cap of 3 way valve the valve 2 3 way Li PT Gauge maifold R410A Gas stop rod s cap for 2 way valve and 3 way valves connect the service port into the projection of charge hose low for gaugemanifold Th
10. oio a CIC c olo D ke olo oo 3E c 5 5 Qo cic Qo CIC B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Heating 7300 2000 3 65 1800 500 7500 2900 220 230V 50Hz ATA 12 9 99 5 TNB175FLBM1 MISTUBISHI 670CC MEL 56 Twin Rotary DC inverter r min 960 700 500 2 W 3 3 unction Rating capacity Power input Current input Minimum capacity Power input Maximum capacity Power input Power source Max Running current Power facor under rating power input Fuse size recommended size W W A Model Manufacture Type Q 3 n o o EZ Motor output power mm about 0 52 U M H ale 9 gt D 3 2 5 Ola zl e 9 3 3 5 a Sir lt Heat exchanger ace area Outdoor unit Dimension Refrigerant control method Defrosting method Crankcase heater power Noise level 928 288 680 1015 405 760 x I kg kg 54160 2 0 Net Shipping Refrigerant m 9 No need to recharge Oooo d O iquid as A m 2 m m dB A 55 g m m 3 06 35 m 9 52 a gt 12121 4 o 45 9 7 z 5 2 a
11. 33 723 Commercial Air Conditioner 25 23 2 5 R25 23K0 2 5 25 50 4200 3 25 50 4200 3 Room En ws me wur ETS 2925 aas 39 45 6 1 37 5 5 87 35 66 5 65 33 92 5 44 32 27 30 72 29 25 70 Model AU18 222XFERA 5072 092 122 H alier Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 12 Performance curves The data in the curves are measured with three indoor unit AS07 AS09 AS12 and AU182 Heating capacity curves 10000 9000 6 7 4 5 8000 amp _ 1 2 1 0 8 6 5 g 7000 e 7 6 E L 12 10 8 6000 16 15 5000 4000 16 10 18 12 20 14 5 21 15 22 16 24 17 26 18 indoor WB DB Power input curves in heating mode 2900 2700 6 7 0 4 5 1 2 5 2300 1 0 6 5 5 7 6 2100 12 10 16 15 1900 1700 16 10 18 12 20 14 5 21 15 22 16 24 17 26 18 indoor WB DB 71 Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Cooling capacity curves 8000 7000 6000 45 gt m 20 8 25 amp 5000 32 35 o 8 4000 e 40 3000 2000 18 12 20 14 22 16 25 18 27 19 30 22 32 24 indoor DB WB Power input curves in cooling mode 3000 2500 2000 lt 5 5 1500 wie
12. AM 12 00 AM UU The Sleep running starts The Sleep running stops In heating TIMER ON OFF operation Remote control unit TIMER operation Set Clock correctly before starting Timer operation refer to page 2 You can let unit start or stop automatically at following times Before you wake up in the morning or get back from outside or after you fall asleep at night TIMER ON OFF NU IC UU 1 After unit start select your desired operation mode Operation mode will be displayed on LCD 2 TIMER mode selection Press TIMER button to change TIMER mode Every time the button is pressed display changes as follows EN Rud 5 Remote 12 00 PM 12 00 AM 12 00 PM 12 00 controller TIMER ON TIMER OFF TIMER ON OFF Select your desired TIMER mide TIMER ON or TIMEROFF ON or OFF will flash 3 Timer setting Press HOUR A Y button Every time the button is pressed time increases 1 min If button is kept pressed time will change quickly Every time the button is pressed time decreases 1 min If button is kept pressed time will change quickly Time will be shown on LCD It can be adjusted within 24 hours 4 Confirming your setting After setting correct time press SET button to confirm stops flashing Time displayed Unit starts or stops at x hour x min TIMER ON or TIMER OFF Timer mode indicator on indoor unit lights up 43 B Ha lef Commercial Air Conditioner Model
13. 1 Safety precautions Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Carefully read the following information in order to operate the air conditioner correctly Below are listed three kinds of Safety Cautions and Suggestions WARNING Incorrect operations may result in severe consequences of death or serious injuries CAUTION Incorrect operations may result in injuries or machine damages in some cases may cause serious consequences INSTRUCTIONS These information can ensure the correct operation of the machine Be sure to conform with the following important Safety Cautions The Safety Cautions should be at hand so that they can be checked at any time when needed If the conditioner is transferred to the new user this manual should be as well transferred to the new user WARNING e Don t blow the human body with the cooling air too long and don t let the room tempera ture decrease too low either Otherwise the one will feel unpleasant or harm ones health f any abnormal phenomena is found smell of firing please cut off the power supply immediately and contact the dealer to find out the handling method In such case to continue using the conditioner will damage the conditioner and may cause electrical shock or fire hazard 5 e When you need maintenance and repairment call dealer to handle it Incorrect mainten ance and repairment may cause w
14. outdoor ambient temp 10 C 210 pulse E 3 3 5 When discharging temp Td is too high modify the EEV angle In order to cooperate the compressor discharging temp over high protection the system will enlarge the EEV open angle Within 5 minutes after compressor starts up it will not modify The detecting period is 30 seconds Cooling mode Indoor modification angle 100 C lt discharging temp 50degree 30seconds it will stop until up to the max permitted opening angle 90 C discharging temp lt 100 C Keep the angle 48 B H Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA lt 90 C 5degree 30seconds and reduce to 0 degree gradually Heating mode Indoor modification angle 50degree 30seconds it will stop until up to the max permitted 100 lt discharging temp oushifig angle 90 lt discharging temp lt 100 C Keep the angle 3 4 4 way valve control in heating Protection when 4 way valve can not reverse in heating 10 minutes later after compressor startup if indoor coil average temp is below 15degree and keeps for 1 minute the unit will stop and occur the 4 way valve protection compressor ON 4 way OFF 55 gt 2minutes and 55 3 5 Electric heater control If compressor has not run for a long time the refrigerant will deposit on the bottom of compressor and mix with the refrigeranr oil When re startup because low pressure reduce
15. uneasy l 4 o 9 o 9 o o A cb d N N cQ dq d DQ amp cb amp c 5 QS 9 lt lt lt eS lt lt lt 49 S lt N pew Bureau uBiu Buneey e x uBiu Bujooo pew ybiy VHAAXEELSV lene esiou pueq 5 1 ZH pueq Commercial Air Conditioner e x gt BuIjoo9 Buijooo s e Haier esiou 5 1 1 ensseJd punos 7 euynsseJd punos B Haief Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 14 Air velocity and distribution unit m s na Fig 1 1 top view flow control panel horizal 0 lourer center 1 unit m s Fig 2 1 22 P top view flow control panel horizontaf lt lourer right and left 1 DS 2 3 1 1 1 1 1 1 1 m 01 2 3 4 5 6 7 8 9 10 unit m s m Fig 3 3 top view flow control panel horizontal
16. S 2 2 8 lt IES gt 5 gt gt T ype O 3 n o 5 Air flows H M L ype Diameter ace area Heat exchanger Outdoor unit A SO ay Zi IO RES olo 5 ola AIS 5 D aia vt O15 5 sh lt BIS Dimension LxWxH Refrigerant control method Defrosting method Crankcase heater power mm m2 mm mm Automatic by reversible cycle 51 Noise level 54 60 k m R410A 2 0 ype Charge 3 121215121 o 5 0 oi 5 5 o B 5 s 5 D d 3 P 3 0 3 6 35 3 9 52 2 iquid 2 2 10 o 5 5 9 mm mm to o Connecting method Between 1 0 amp O D Piping length between 10 OU otal liquid piping length Drop between indoor units 10 indoor unit lower than outdoor unit 15 indoor unit higher than outdoor uni 1 m 1 The above performance data are from the combination of AU182XFERA 2 AS092XVERA AS122XVERA 2 Large drop and long piping installation will obviously reduce the totao capacity Max Drop between indoor units Max Piping length between IU amp Max Total liquid piping length 5 5 0 0 5 lt
17. is the real time analyser position lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 3 Safety precaution Carefully read the following information in order to operate the airconditioner correctly Below are listed three kinds of Safety Cautions and Suggestions WARNING Incorrect operations may result in severe consequences of death or serious injuries CAUTION Incorrect operations may result in injuries or machine damages in some cases may cause serious consequences INSTRUCTIONS These information can ensure the correct operation of the machine Be sure to conform with the following important Safety Cautions The Safety Cautions should be at hand so that they can be checked at any time when needed If the conditioner is transferred to the new user this manual should be as well transferred to the new user WARNING e If any abnormal phenomena is found e Don t dismantle the outlet of the e g smell of firing please cut off the outdoor unit power supply immediately and contact The exposed fan is very dangerous the dealer to find out the handling which may harm human beings method In such case to continue using the conditioner will damage the conditioner and may cause electrical shock or fire hazard e When the unit needs maintenance and repairment please call dealer to handle it After the unit being used for a long time Incorrect maintenance and repairment the base should be checke
18. 4 Inner Hexagon Spanner 11 Leakage Checker or Soap Liquid 5 Shifting Spanner 12 Measuring Tape 6 Spanner 13 Scraper or File 7 Pipe Cutter 14 Refrigeration Oil 31 m H alef Commercial Air Conditioner Model AU18 222XFERA 5072 092 122 4 Accessories for installation Self contained accessories No C D E Name of Non adhesive Adhesive Connecting Heat Gypsum Drain hose Parts Tape tape Hose 2 powder materia 5 Choose the installation place Install the indoor unit where the weight of the unit can be supported Install the indoor unit where the heat source and steam source are not close and the unit inlet and outlet are not blocked Install the indoor unit where the drainage is easy and the outdoor unit can be easily connected Install the indoor unit where its cold air and hot air can be easily sent to all the comers of the room Install the indoor unit where the power socket is near and there is sufficient space around the indoor unit Install the indoor unit where there is no T V set radio set and wireless applian ce underneath and the sunlight lamp is over one meter away If the remote controller is installed on the wall the indoor unit shall be ensured to receive the signal while the sunlight lamp is on 6 Method for Cutting and Expanding Pipes When the pipe is too long or the mouth is damaged the pipe needs to cut or expanded
19. 5 32 35 A 1000 e 40 500 0 18 12 20 14 22 16 25 18 27 19 30 22 32 24 indoor DB WB 79 B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA ENERGY C W W total current gt 2 o o 55 5 5 S o 5 Eo 49 c a N e LO 2 72 CN e gt 09 CN LO Mb e e LO A EX LO e je CN CN gt i c total power input data data min ES total cooling capacity kW rated ta data data Output kW Nom cooling Unit Unit Unit Unit min A B C D da Rated capacity Application cooling and heating mainly cooling mainly cooling mainly cooling mainly cooling mainly cooling mainly cooling mainly cooling mainly cooling mainly cooling mainly cooling mainly cooling mainly cooling Compatible indoor units 07 07 07 07 07 09 07 07 12 TRI 1x3 07 09 09 07 09 09 09 09 09 09 09 12 09 12 12 07 07 09 07 07 12 TRI 1x3 07 09 12 09412 07 09 12 09 09 09 09 09 12 BI 1x2 BI 1x2 AU1 82 XFERA AU222 XFERA 273 AU18 222XFERA Model toner Commercial Air Cond Haier AS072 092 122XVERA 156 0621 606 052 062 soe 990 0v7 024 091 092 092 002 se 062 606 092 062 soe 9 0 024 091 vez srz
20. AU18 222XFERA AS072 092 122XVERA To cancel TIMER mode Just press TIMER button several times until TIMER mode disappears Hints After replacing batteries or a power failure happens Time setting should be reset Remote controller possesses memory function when use TIMER mode next time just Press SET button after mode selecting if timer setting is the same as previous one Health amp Fresh Air operation Health operation After turning on the unit and set the desired working mode Press the Health button the LCD will display the unit begins health operation start the negative ion generation device Press the Health button again displayed on the LCD disappears health operation is cancelled turn off the negative ion generation device Note When indoor fan motor does not work the unit will automatically turn off negative ion generation device About Health operation After the start of Health operation the negative ion generator will generate large amount of negative ion which can effectively balance the amount of positive amp negative ion in the air and has the bacteria killing and accelerating the dust deposition of the room to make the room air fresh and healthy 44 Model AU18 222XFERA AS072 092 122XVERA Commercial Air Conditioner Haier 8 Refrigerant Diagram 45 AU18 222XFERA 5072 092 122 Commercial Air Conditioner Model Haier 440 10 NO ONHIH L
21. In OFF state press emergency switch until 15 seconds later the buzzer sounds 5 times the display panel will display this unit number and you can check if there are repeated numbers 18 Setting method of temperature compensation Set the temperature compensation in heating mode with the remote controller No compensation in cooling mode In 24 heating mode press SLEEP button 8 times continuously indoor buzzer sounds 5 times that shows temp compensation works Switch on the unit in heating mode by the remote controller press TEMP button to set the set temp so temperature compensation the current set temp 24 C For example if the set temp is 24 C the temp compensation is OC if the set temp is 25 the temp compensation is 1 C Please do not set the minus temp compensation that is to say the min temp compensation is 0 C If setting is finished press ON OFF button then indoor buzzer will sound 4 times that shows the unit quits the temp compensation 58 lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 10 Diagnostic information and troubleshooting Indoor failure code TROUBLE SHOOTING FAILURE CODE POSSIBLE REASONS Sensor disconnected or broken or at wrong Sensor disconnected or broken or at wrong position or short circuit Sensor disconnected or broken or at wrong Faulty temperature sensor Tai Faulty temperature sensor Tc1 Faulty temperature sensor Tc2 S
22. Used to set correct time Used to set UP DOWN air CODE selection sending and RIGHT LEFT air For this unit please set to code A sending direction Note This model does not have the following related display and function 9 9 Clock set When unit is started for the first time and after replacing batteries in remote controller clock should be adjusted as follows Press CLOCK button AM or PM flashes Press A or Vto set correct time Each press will increase or decrease 1 min If the button is kept pressed time will change quickly After time setting is confirmed press SET AM and PM stop flashing while clock starts working Remote controller s operation When in use put the signal transmission head directly to the receiver hole on the indoor unit The distance between the signal transmission head and the receiver hole should be within 7m without any obsacles as well Don t throw the controller prevent it from being damaged When electronic started type fluorescent lamp or change over type fluorescent lamp or wireless telephone is installed in the room the receiver is apt to be disturbed in receiving the signal so the distance to the indoor unit should be shorter 37 Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Loading of the battery Slightly press and push down the cover Load the batteries as illustrated 2 R 03 dr
23. ings May not use wire or any other materials replacing fuse otherwise may cause faults or fire accidents When air conditioner is co used with other heat radiator the frequent replacement of room atmosphere should be required Don t place any burning unit in the air flow of air conditioner which may cause incomplete Inefficient venti combustion lation may cause suffocation No inflammable spray fluid should be permitted to be placed or used near to After a long time use of air conditioner the airconditioner other wise may cause fire base should be checked for any damages accidents If the damaged base is not repaired the unit may fall down and cause accidents Air conditioner should be cleaned only after power supply is cut off to keep from shock or hurt Don t clean air conditioner with water No goods or nobody is permitted to placed on Otherwise may cause shock or stand on outdoor unit When use the fumigating insecticide don t open air conditioner The falling of goods and people may cause acci dents Otherwise the poisonous chemicals may settle in air conditioner which harm the health of Pets and plants should not be blowed directly chemical allergic people in the air flow Otherwise will suffer damage CAUTIONS ON INSTALLATION Please ask the dealer or specialist to install never try by the users themselves After the installation
24. 092 122 25 10 0 3 25 10 3 25 50 3700 3 B25 50 3700K 3 2021 63 10 193 64 2 49 2 38 20C 9079 34 695 19 8572 35 6 68 18 8096 36 543 17 7651 37 56 16 729 38 559 15 6841 39 573 14 6473 40 552 13 6127 41 532 12 5802 42 512 11 5497 43 493 a0 521 44 49 494 45 458 4686 46 442 7 4446 47 426 4221 48 411 5 4008 49 397 3808 5 383 3 3619 51 37 2 3441 52 357 1 3273 53 345 3114 54 333 244 55 322 2822 56 311 264 57 3 1 2561 58 29 2441 59 281 28327 60 272 222 61 263 _ 2118 62 254 249 258 23 228 2 16 209 203 1 19 185 179 1 73 168 163 158 1 54 149 145 11 1843 65 23 12 1761 66 223 13 1683 67 246 14 1609 68 209 15 1538 69 2 03 16 1471 70 196 17 1408 71 19 18 1348 72 185 19 129 73 179 1236 74 173 1 1184 75 168 2 1134 76 1 63 1087 77 158 1043 78 154 5 10 79 149 6 959 145 7 921 8 884 9 848 815 1 783 _ 32 752
25. 1 3 octave band noise level AU182XFERA 1 3 octave band noise level ASO72XVERA LO C LO LO CO LO OQ 10 O10 O 100 CO LO LO NE CO CO CN x7 x7 eunsseJd punog 75 I Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 1 3 octave band noise level AU182XFERA cooling high cooling med cooling low lt fan high cooling high cooling med cooling low lt fan high X fan med fan low 1 heating high heating med heating low heating high heating med heating low fan med e fan low 5 Jnsse4d punos einsseid punog 5 O NV Ss D SF FPP third octave band frequency Hz third octave band frequency Hz 1 3 octave band noise level AS092XVERA NNT OONWTTNANN 76 ZH ouenbeuy pueq PIU Model AU18 222XFERA AS072 092 122XVERA LN AN Y WW BD cb LN WwW SP ELLE PP YM SS Ht WW S SD S VO QS dS QS S OS AS qd d d
26. 1 cutting hose 2 Removing 3 Putonnut 4 Expand Hose pu N Expansion Size Hose dia Size mm A Yi 222 6 35 mm 1 4 0 8 1 5 9 52 mm 3 8 1 0 1 5 Not Correct d y H H dH Tilting cracks on expanded mouth burr incomplete too long 7 When the mounting plate is first fixed 1 Carry out based on the neighboring pillars or lintels a proper leveling for the plate to be fixed against the wall then temporarily fasten the plate with one steel nail 2 Make sure once more the proper level of the plate by hanging a thread with a weight from the central top of the plate then fasten securely the plate with the attachment steel nail o bU M NM 211 EH Rd m A 80mm 3 Making a Hole on the wall and Fitting the piping Hole cover Make a hole of 60mm in diameter slightly descending to outside the wall Install piping hole cover and seal it off with putty after installation 32 B H alef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 4 Drawing of pipe 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 t
27. 2 Do not use dirty pipe 3 Always flow nitrogen during welding work lt drain piping work lt a o i lt insulation work lt remote controller installation lt electric wiring work 1 Do not connect the power supply lt outdoor unit foundation work lt outdoor unit installation lt refrigerant piping connection lt 1 Charge the nitrogen to the set pressure test 2 24 hours later check if the pressure in the pipe has reduced lt 1 purging refrigerant is prohibited seriously 2 Use a special vacuum pump with reverse check mechanism evacuat on and drying lt additional refrigerant charging 1 Calculate the refrigerant additional charging amount and charge a suitable amount lt gas leakage check lt maintenance panel installation lt trial running and adjustment a hand over 13 B H alef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA BPiping material 1 Use the correct refrigerant piping and materials for 2 Forthe pipe wall thickness see the table below Pipe diameter 6 35 9 52 12 7 15 88 19 1 Pipe wall thickness 0 8 0 8 0 8 1 0 1 2 Note Always observe and comply with the local regulations when installing the refrigerant piping T
28. 22 10 05027 lourer center unitm s Fig 4 top view flow control panel vertical 15 lourer center Condition Fan speed high Operation mode fan Voltage 230V 50Hz 78 B H alef Commercial Air Conditioner Model AU182XFERA AS072 092 122XVERA Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com
29. 250VAC or T 25A 250VAC Please check the circuit diagram about the fuse replaced 4 The wiring method should be in line with the local wiring standard 5 The power cable and connecting cable are self provided The requirement of the power cable to the outdoor unit HOSRN F 3G 4 0mm Cable type HOSRN F 3G 4 0mm AU182XFERA AU222XFERA All the cables shall have got the Local authentication certificate 6 The breaker of the air conditioner should be all pole switch and the distance between its two contacts should be no less 3mm Such means for disconnection must be incorporation in the fixed wiring 7 The waste battery shall be disposed properly To ensure proper installation please read this safety precautions carefully before the installation After installation start the unit correctly and ensure that you show the customer how to operate and maintain the units WARNING CAUTION cause serious consequences Incorrect operations may result in severe consequences of death or serious injuries Incorrect operations may result in injuries or machine damages in some cases may 15 Haier Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Z WARNING Installation work must be carried out by professional qualified people do not install the unit by yourself Incorrect installation will cause water leakage electric shock and potentially fire e Install the unit as per the manual Inco
30. Connecting method Between 1 0 amp O D Drop between IU amp OU Piping length between IU amp OU 3 2 5 lt 1 10 indoor unit lower than outdoor unit 15 indoor unit higher than outdoor Drop between indoor units Max Drop between IU amp OU Max Drop between IU amp OU Max Drop between indoor units Max Piping length between TU amp Max Total liquid piping length m 1 The above performance data are from the combination of AU222XFERA ASO092XVERA 2 AS122XVERA 2 Large drop and long piping installation will obviously reduce the total capacity i m m m m Automatic by reversible cycle W k m m it 1 5 5 0 0 5 5 o E 5 D 5 5 5 B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA unction Heating Capacity BTU Capacity Power cable EET Communication cable ________ 2 075 125mm must be shielded Fan TypexNumber_ _ 680359 crossa ___ Heat exchanger ee oe a Dimension extemal _ mm 70511971265 LxWxH Package 88031630 Drainage pipe _ diameter mm 11 4 16 4 Controllertype Reffigerant contra PMV on outdoor uni d Refrigerant mme ____ mm 835 635 m os 98 Connecting method Flared W Dehumiiymgcapady Powe
31. If it occurs 3 times in 1 hour it will always alarm and stop electrify again and failure will be cleared 45 In heating confirm through defrosting temp Te 30C Normal operation 35 C 40 C SV2 OFF amp 20HZ i ee Keep for 5 seconds unit stops alarm occurs 3 minutes later restart up If it occurs 3 times in 1 hour it will always alarm and stop electrify again and failure will be cleared 50 C If the failure is not confirmed as the permanent protection outdoor will not send failure code to indoor and indoor will not alarm 54 lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Indoor electric control functions Note The following functions are applicable for the unit in normal state 1 Parameter input 1 1 Analog data input 1 1 1 Indoor temperature sensor input TA 1 way 23K at 25 C 1 1 2 Indoor coil outlet temp inlet temp TC1 gas pipe TC2 liquid pipe 2 way 10K at 25 C 1 1 3 Indoor middle coil temp Tm 1 way 10K at 25 C 1 2 Functional switch setting 1 2 1 Central control address setting and indoor communication address setting 8 way SW01 the detailed definition is as follow 0 1 ON AS072 AS122XVERA 501 description 1 2 3 4 5 6 7 8 0 0 0 0 0 0 0 Central control address 1 0 0 0 0 0 0 1 Central control address 2 1 1 1 1 1 1 0 Central control a
32. after you hear the Pi sound twice release your finger from the switch the cooling operation starts with the air flow speed Hi Removal of the restriction of emergency or test operation Press the emergency operation switch once more or manipulate through the remote controller the Pi sound the emergency or test operation is stopped When the remote controller is manipulated it gets the system back to the normal operation mode Disconnect power supply before clean the unit Don t touch it with wet hand Don t wash with hot water or solvent to clean the unit Air filter and outdoor cleaning 1 Open the inlet grill 2 Detach the Air filters 3 Use water or vacuum cleaner to clean it If it is extremely dirty wash it with neutral detergent or soap water 4 Wash it with clean water and install it after complete dry 5 Close the inlet grill Caution e Do not use hot water over 40 C as this may cause damage to air filter e Wipe air filter carefully e Clean it with warm and wet cloth or with neutral detergent then wipe it dry with clean and soft cloth e If air conditioner is very dirty clean it with cloth soaked in neutral detergent then wipe off the detergent with clean water Don t use insecticide or other chemical detergents 3 Preparation for installation Installation tools 1 Screw Driver flat head wabbler triangle 8 Pipe Expander 2 Steel Saw 9 Knives 3 60mm Drill 10 Clippers
33. air conditioner In no case should children be allowed to sit on the outdoor unit Specifications The refrigerating circuit is leak proof The machine is adaptive in following situation 1 Applicable ambient EEN Cooling Commercial Air Conditioner Heating 2 If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similar qualified person 3 If the fuse on PC board is broken please change it with the type of T 3 15A 250VAC Model AU18 222XFERA AS072 092 122XVERA 4 The wiring method should be in line with the local wiring standard 5 The power cable and connecting cable are self provided The requirement of the connecting cable Connecting cable sheilded wire 5072 AS092XVERA AS122XVERA HOSRN F 3G 2 5mm2 HO5RN F 2X1 5mm2 the cables shall have got the Local authentication certificate 6 The breaker of the air conditioner should be all pole switch and the distance between its two contacts should be no less than 3mm Such means for disconnection must be incorporation in the fixed wiring 7 The waste battery shall be disposed properly 8 The indoor unit installation height is at least 2m 9 The appliance is not intended for ase young children or infirm persons without super vision 10 Young children should be super vised to ensure that they do not play with the applience 27
34. continously compressor will stop outdoor alarms The alarm can be resumable If in 60 minutes the failure occurs 3 times the failure can be confirmed and send failure code to indoor 2 When compressor no running if output signal of low pressure switch is low level 0 for 30 seconds continously alarm will occur When unit stops the reason that system still checks the low pressure in a long time stop make protection for the compressor on the condition of great refrigerant leakage The reason that low pressure switch action time is 30 seconds when compressor stops low pressure does not change so it will be shorter than the set time in operation 3 When compressor starts up in 8 minutes low pressure switch signal will be shielded 4 In defrosting low pressure switch will be shielded 5 In oil return procedure low pressure switch will be shielded 6 In the refrigerant discharging procedure after the oil return in cooling is over low pressure switch will be shielded In addition the system will control low pressure through the evaporator temp TE to realize the low pressure protection function 53 B H Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA In cooling confirm through Tc2AVE 25C L Normal operation 30 C Min running FQY 20HZ TinAVE 35 C SV2 OFF amp 20HZ VCOA SAN amp 20HZ Keep for 5 seconds unit stops and alarm occurs 3 minutes later restart up
35. different two sides of the terminal to the same side diameters X X 23 B Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Crimp connection method for connection wire After connection the wire must be fastened by wire cover The wire cover shall press on the protection coat of the connection wire as shown in right top figure Note When connecting the wiring confirm the terminal number of indoor and outdoor units carefully Incorrect wiring will damage the controller of air conditioner or the unit can not operate 3 Wiring method of outdoor unit Power line Remove the repair board of the outdoor unit and loosen the wire cover A then put the live wire neutral wire and grounding wire through the wire cover and connect them to terminal block correspon dingly After connection fasten wire cover to its previous state Communication wire of indoor unit Loosen wire cover put the communication wire through the wire cover B and connect them to terminal block correspondingly After connection fasten wire cover B to its previous state Note Power line and communication wire are provided by consumers themselves Terminal block Wire cover A Wire cover B Valve cover 4 Wiring method of indoor unit Loosen wire cover and connect the power line and communication wire of indoor unit to the terminal correspondingly Note When connec
36. hands Otherwise will be shocked e Only use correctly typed fuse May not use wire or any other materials replacing fuse other wise may cause faults or fire accidents Use discharge pipe correctly to ensure efficient discharge Incorrect pipe use may cause water leaking Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 4 Net dimension of indoor and outdoor AU18 222XFERA Wall mounted unit 305 lt a Nie 12 B H alef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 5 Installation Instructions ER410A The working pressure of R410A is approximately 1 6 times higher than R22 Because the oil in the refrigerant is different please do not mix them Refrigerant R22 single R410A mixed R407C mixed Oil Mineral oil SONTEX 200LT Synthetic oil POE oil Synthetic oil POE oil Pressure ratio 1 Approx 1 6 Approx 1 1 Operation flow prepare work schedule refrigerant inspection oO operation chart preparation 1 Always inspect the used refrigerant 2 Always use the specified refrigerant indoor unit installation lt B 1 Use piping material of the specified thickness refrigerant piping work v
37. otherwise images may be disturbed or noises be created Commercial Air Conditioner Model AU18 222XFERA 5072 092 122 As required take measures against heavy snow Wiring e Air conditioner should be equipped with special power supply wire Operating noise Chose the following locations a Capable of supporting air conditioner weight don t increase operating noise and vibration b Hot vapour from outdoor unit outlet and ope rating noise don t disturb neighbour e No obstacles around the outdoor unit outlet 30 B Haier Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 2 Emergency and Test Operation Emergency operation Use this operation only when the remote controller is defective or lost When the emergency operation switch is pressed Pi sound is heard once which means the start of this operation n this operation the system automatically selects the operation modes cooling or heating according to the room temperature When machine is running in emergency the set value and wind speed of temperature could not be altered meanwhile it can not operate for dehumidifying or under timing mode Test operation Test operation switch is the same as emergency switch Use this switch in the test operation when the room temperature is below 16 c do not use it in the normal operaion Continue to press the test operation swich for more than 5 seconds
38. please be sure of the following conditions e Please call dealer to install the air conditioner Incorrect installation may cause water leaking shock and fire hazard CAUTION e Air conditioner can t be installed in the Connect earthing wire envi ronment with inflammable gases Earthing wire should not be connected to the gas because the inflammable gases near to pipe water pipe lightning rod or phone line in air conditioner may cause fire hazard correct earthing may cause shock e Installed electrical leaking circuit breaker Use discharge pipe correctly to ensure efficient It easily cause electrical shock without circuit discharge breaker Incorrect pipe use may cause water leaking QD Earthing 29 Location Air conditioner should be located in well vented and easily accessible place e Air conditioner should not be located in the following places a Places with machine oils or other oil vapours b Seaside with high salt content in the air c Near to hot spring with high content of sulfide gases d Area with frequent fluctuation of voltage e g factory etc e In vehicles or ships f Kitchen with heavy oil vapour or humidity g Near to the machine emitting electric magnetic waves e h Places with acid alkali vapuor TV radio acoustic appliances etc are at least 1 m far away to the indoor unit outdoor unit power supply wire connecting wire pipes
39. unit At this time the controller should be changed from OFF to ON and then the LCD display board will display number 010 That is to say the address setting is enabled G Press the button on the controller the times you press it stands for the address you want to set detailed as following Press button SLEEP one time the address is 010 and the LCD display board shows 010 Press button two times the address is 020 and the LCD display board shows 020 Press button SLEEP three times the address is 030 and the LCD display board shows 30 H Use the remote controller to turn off the unit At this time the controller should be changed from ON If you want to change the address please repeat the above steps from E 10 J After setting all the addresses please power off the system and then power on again Otherwise the system will not start to work K Once the addresses are successfully set please do not change it any more to avoid confusion 3 Address setting procedure when using the DIP switches SW01 and SW02 A The DIP switches SW01 5 02 on the indoor unit PCB B Before carrying out the address setting work the system must be powered off C Take off the front panal and the filters then take off the flaps and also the front cover disconnect the swing motor connectors from the PCB and then take out the lower part of the PCB D Change the position of DIP 1 of SW01 from OFF t
40. 18 222XFERA AS072 092 122XVERA check the terminal no block and the power supply no check if fuse burnt y Y and check replace the fuse re fix the sensor and check again check if sensor resistor value is correct yes Y PCB is faulty and repalce it check again is no PCB is faulty 7 replace es again no replace sensor and check again B H Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Trouble 3 Communication failure between indoor and outdoor start as per the wiring diagram check if DO re wiring and communication check again wiring is correct Yes check if the communication port no ifthe power cable and the no PCB is faulty communication wire _ replace and connecting to the cc indoor outd PCBi too close resulting in the check again M dL add wrong commission data in open circuit yes yes replace the adjust the communication distance and connection wire check again check again Trouble 4 Indoor PCB EEPROM data is wrong 1 If the failure occurs when being electrified for the first time that shows EEPROM 8 bit pin not fixed firmly or damaged 2 If the failure occurs when running that shows EEPROM is faulty and need to be replaced Trouble 5 Indoor repeated unit number 1 Firstly query the unit number switch off the unit press SLEEP for a
41. 2XFERA AS072 092 122XVERA 7 ntroller 65 TIMER 4 TEMP emote Controle Used to select TIMER ON Used to set temp temp range 16 amp TIMER 0 TIMER ON OFF 5 Timer ON OFF display LOCK Used to lock buttons and LCD ess air sending play display a4 ab all O LOW MID HIGH AUTO aoe Used to reset the controller back 7 Swing direction display 6 to normal condition 8 Room temperature display HOUR Sleep state display D Used to set clock and timer 60 Health display setting Display when set Health SLEEP operation function Used to select sleep mode Electric Heating display o OSET Fresh Air state display Used to confirm Timer and Clock 3 Battery Capacity display setting Display when the electric power gLIGHT of the battery is insufficient Control the light up and out of state display the control panel s background Temperature display light source and control the Used to display the set switch of the buzzer temperature HEALTH 6 Clock display Used to set Health operation 7 Humidifying display Power ON OFF Dn 28 Sterilize display Used for unit start and stop FAN This function is optional p QMODE Used to select fan speed AUTO DSTERILIZE Used to select AUTO run COOL at ROME ENN This function is optional DRY HEAT and FAN operation i 60 HEALTHAIRFLOW CLOCK 43 SWING Used to set healthairflow
42. 450 3 AU222XFERA R25 10K0 3 68 amp 80 50 3 R80 50KQ 3 25 80 4450 3 25 80 4450 3 30 11600 24 536 6 29 10860 25 5114 28 10170 26 486 9 27 464 26 8932 28 4423 25 8375 29 4217 24 786 30 4021 23 7372 31 3836 22 366 21 6498 33 3493 20 6104 34 3335 49 5736 35 3184 _ 18 5392 36 3041 17 5071 37 2905 16 470 38 2776 15 4488 39 2653 14 4225 40 2536 13 3978 41 2425 12 3747 42 232 11 3531 43 2219 10 3328 44 2123 3138 45 2032 8 2960 46 1945 7 2793 47 1863 6 2636 48 1784 5 2489 49 1709 4 2351 50 1637 221 51 1559 2 2099 52 1504 1 1984 53 142 187 54 1383 1 1775 55 1327 2 1680 56 1273 1590 57 1221 4 1500 58 1172 5 1426 59 1125 6 13591 60 108 7 1280 61 1038 8 1214 62 9968 9 1151 10 1092 11 1036 12 9832 9334 14 8864 15 8419 16 800 17 7608 18 7228 19 6873 20 6538 21 62 22 592 23 553 6 Commercial Air Conditioner 69 Model AU18 222XFERA 5072
43. Haier Commercial Air Conditioning SERVICE MANUAL 4 Models gt AS072XVERA m AS092XVERA Lo at AS122XVERA AU182XFERA AU222XFERA Features High energy efficiency Newly designed V appearance for wall mounted unit step or stepless air flow control New outdoor unit with valve cover plate also the grille is changed from metal one to plastic one Adjustable heating temperature compenstation Free combination multiple connection types with different types of indoor unit total indoor load can be up to 135 than the standard match Infrared control type Central control and full automation if connected with a central controller New friendly refrigerant R410a zero ODP environment protection Advanced technology DC inverter control function Health airflow and sterilize function for wall mounted unit more healthy Weekly timer standard Group control function Auto restart function Low ambient temperature heating 15 degree function Room card function Manual code SYJS 013 05REV 3 Edition 2007 04 14 B H alef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA CONTENTS TERRE 2 1 Description of products 4 5 3 2 SUSCIIC ANON 6 Safety 2 1 7 10 4 Net dimension of indoor and 12 5 I
44. O In heat air will blow out after a short period of time due to cold draft prevention function Press ON OFF button Unit stops running and when entering this mode for the next time it will show the previous setting Up and down Side from side Position 1 Position 1 Position 2 m Position 2 Position 3 FE Position 3 Position 4 Position 4 Position 5 Ur N ICOOL DRY FA Position 5 N AUTO COOL HAVE NOT Position 6 Position 6 Position 7 Position 8 41 H lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Fixed position gt Side from side Press the SWING again to fix the vertical louvers at your desired position Swing Swing C4 Press SWING the vertical louvers move from side to side Press SWING C4 gt the horizontal louvers move from up to down Fixed position Press the SWING C amp D again to fix the horizontal louvers at your desired position Note Put louvers at up position in cooling and down position in heating mode This will be helpful to keep an even room temp Notice In cooling or dry operation don t put horizontal louvers at downward position for a long time or outlet grill might get frosted Don t expose your skin to cool or warm air for a long time Sleep op
45. UTO COOL DRY FAN HEAT Select Fan operation shows Fan operation starts 9 Press FAN button For each press fan speed changes as follows afl ill LOW MID HIGH Unit runs at the speed displayed on LCD Press ON OFF button Unit stops running and when entering this mode for the next time it will show the previous setting Note In this mode temp can t be selected temp setting will not be shown in LCD display In Fan operation mode AUTO fan speed is not available Operation cycles are as follows LOW MID HIGH Heating operation Note For cooling only type this function is invalid Press ON OFF button Unit starts running The previous status appears on the display except TIMER SLEEP mode Press MODE button For each press operation mode changes as follows AUTO COOL DRY FAN HEAT Select Heating operation 2 appears and Heating operation starts 40 Air flow adjustment Swing louvers Vertical louvers Horizontal louvers Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 3 Select temp button Press TEMP button AEvery time the button is pressed temp setting increases 1 C Y Every time the button is pressed temp setting decreases If the button is kept pressed setting will increase or decrease quickly Press FAN button For each press fan speed changes as follows CL all tll LOW MID HIGH AUT
46. al All indoor units have auto restart function When the power supply cut off suddenly the unit will automatically recover the previous running mode once the power supply is on Self diagnostic function In the course of operation if the failure occurs the failure code will display on the wired controller or on the operation panel Then according to the failure code chart you can eliminate the failure soon Central control function if connected with a detector and a central controller That is convenient for building management Weekly timing function if connected with a detector and a weekly timer Adjustable heating temperature compensation In heating mode the temperature compensation can be adjusted by the remote controller If you do not want the compensation you can set the compensation as 0 degree P When room card function is available indoor will be controlled as below figure When room is disconnected When room card is connected lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 2 Specification Here 7000 1800 1800 500 7400 7300 220 230V 50Hz ATR 102 Power facor under rating power input 99 use size recommended size A r min 850 700 500 about 3000 DC i about 0 52 928 288 680 1015 405 760 5 1 5 unction Ul 7 70 m U 5 5 5 sle 3 3 9 3 5 51515 8 955 28
47. ast 50mm 6 After installation please fill in the following table for easy daily maintenance Indoor unit NO Room name Model of indoor unit Serial No A B C B rest running Before starting the test running please confirm the following works have been done successfully 1 Correct piping work 2 Correct wiring work 3 Correct match of indoor and outdoor unit 4 Proper recharge of refrigerant if needed 5 Correct indoor unit addresses setting e Make sure that all the stop valves are fully open e Check the voltage supplied to the outdoor and indoor units please cinfirm that is 230V 25 lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA e Test running 1 If the temperature is lower than 16 C it is impossible to test cooling with remote controller and also when the temperature is higher than 30 C it is impossible to test heating 2 To test cooling set the lowest temperature at 16 C To test heating set the highest temperature at 30 3 Please check both cooling and heating operation of each unit individually and then also check the simultaneous operation of all indoor units 4 After ruuning the unit for about 20 minutes check the indoor unit outlet temperature 5 After the unit is stopped or working mode changed the system will not start again for about 3 minutes 6 During cooling operation frost may ocur on the indoor unit or pipes this
48. ater leak electrical shock and fire hazard Please let the dealer be responsible for installing the conditioner Incorrect installation may cause water leak elec trical shock and fire hazard Don t put fingers or any other things into the inlet outlet and swing louver while the condi tioner is in operation Because the highspeed fan is very dangerous and may cause injuries Call the dealer to take measures to prevent the refrigerant from leaking If conditioner is installed in a small room be sure to take every measure in order to prevent suffoca tion accident even in case of refrigerant leakage When conditioner is deinstalled or reinstalled dealer should be responsible for them Incorrect installation may cause water leaking electrical shock and fire hazard CAUTIONS Conditioner should not be used for any othe purpose other than airconditioning Don t use air conditioner for any other special purposes e g the preservation and protection of food animals plants pecision apparatus as well as work of art otherwise the qualities of these stuffs may be damaged Don t operate the air conditioner with damp hands Otherwise will be shocked 28 B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA e Don t dismantle the outlet of the outdoor unit Only use correctly typed fuse The exposure of fan is very dangerous which may harm human be
49. ation 2 1 The set temperature in cooling TS the set temp on remote controller 2 2 After cooling startup indoor unit will send the frequency code to outdoor according to the temp difference between the set temp and the ambient temp 3 Heating operation 3 1 In heating operation the set temp TS the set temp on remote controller 3 2 After heating startup indoor unit will send the frequency code to outdoor according to the temp difference between the set temp and the ambient temp 4 Dry operation Room temp set temp tolerance 2 C indoor operation is identical to the cooling operation and sends the cooling operation signal to outdoor Room temp set temp tolerance 2 indoor unit sends the dry operation signal to outdoor Room temp lt 16 indoor unit stops running and sends stop unit signal to outdoor 5 Fan operation Indoor fan motor will run as the fan speed set on the remote controller and indoor unit will send the stop unit signal to outdoor 6 Auto operation If the unit enters Auto mode for the first time the system will adjust the operation mode according to the room temp and the set temp When room temp set temp entering cooling mode When room temp set temp entering heating mode Mode conversion will be confirmed after compressor has stopped for 15 minutes 7 Abnormal operation When outdoor modes from the request of indoor unit conflict the one entering firstly will take priority A
50. between the TIMER clock and the present clock In TIMER state TIMER indicator will be ON 15 SLEEP function In cooling dry mode after running for 1 hour the set temp will increase 1 C another 1 hour later the set temp will increase 1 C again then 6 hours later it will stop In heating mode after running for 1 hour the set temp will reduce 2 C another 1 hour later the set temp will reduce 2 C again then 3 hours later the set temp will increase 1 C and another 3 hours it will stop 16 Auto restart function In 5 seconds press SLEEP button 10 times continuously the buzzer will sound 4 times and enter auto restart function In 5 seconds press SLEEP 10 times continuously the buzzer will sound twice and quit auto restart function If no SLEEP button press SWING as the same method 17 Setting indoor unit number In OFF state press emergency switch until 15 seconds later the buzzer sounds 4 times indoor will enter the indoor unit number setting state the set method is as follow 57 f Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Press ON OFF button from OFF mode to ON mode the times of SLEEP button to be pressed is the set unit number then press ON OFF button to quit unit number setting state at this time indoor unit is at OFF state the display panel will display this unit number For example press SLEEP button once it is No 1 unit press twice it is No 2 unit and so on
51. bout 15 seconds until the buzzer sounds 5 times on the display panel there will be digit which is indoor number By this method you can check if there is repeated unit number if yes please re set the number as per the unit number setting procedure 2 Re set the unit number directly the unit with outdoor pipe A is No 1 the unit with outdoor pipe B is No 2 the unit with pipe C is No 3 Trouble 6 Indoor fan motor failure AC fan motor has not 50Hz zero crossing detection start check if the fan no check the fan motor motor input _ feedback wire is no PCB is faulty connection is fixed fixed badly CN23 and replace it badly CN3 on PCB on PCB yes yes 1 replace fan motor replace fan motor input port cut off feedback port cut off power supply and power supply and be be electrified again electrified again 62 Model AU18 222XFERA AS072 092 122XVERA Commercial Air Conditioner Trouble 7 Outdoor unit failure Check the failure code on outdoor indicator board 5 lamp Trouble 8 Outdoor unit alarms sensor failure start as per wiring diagram check if no re fix the connection port sensor and between sensor and check again PCB is correct yes check if the sensor is in open circuit no check if the no replace sensor the connection port sensor resistor and check to PCB is in good value is correct again conditi
52. check no 63 motor cannot 7 startup normally in cooling mode no yes check if the outdoor motor has power input no replace main control board and check again replace outdoor motor and check again Haier Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Failure 11 Low pressure switch failure Reason 1 Too low system pressure causes that the unit stops and the compressor protection works the failure can be resumed 2 Pressure switch wire is not fixed well or in open circuit start check if the connector between pressure switch and PCB is fixed badly or damaged CN20 on PCB no check if the 2 straight lugs on no the pressure switch work badly if indoor fan motor cannot startup normally in heating mode except for defrost yes yes yes 1 replace pressure switch replace pressure check if the connector shut off and switch connector shut indoor motor has be electrified again off and be electrified power input re check again re check 64 replace main control board and check again replace indoor motor and check again a Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 11 Electric data 11 1 Wiring diagram Outdoor unit wiring diagram
53. d for any may cause water leak electrical shock damages and fire hazard If the damaged base is not repaired the unit may fall down and cause accidents 10 Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA WARNING e Installed electrical leaking circuit breaker It easily cause electrical shock without circuit breaker e Air conditioner can t be installed in the environment with inflammable gases because the inflammable gases near to air conditioner may cause fire hazard e Please let the dealer be responsible for installing the conditioner Incorrect installation may cause water leak electrical shock and fire hazard e Call the dealer to take measures to prevent the refrigerant from leaking If conditioner is installed in a small room be sure to take every measure in order to prevent suffocation accident even in case of refrigerant leakage When conditioner is removed or reinstalled dealer should be responsible for them Incorrect installation may cause water leaking electrical shock and fire hazard e Connect earthing wire Earthing wire should not be con nected to the gas pipe water pipe lightning rod or phone line in correct earthing may cause shock D Earthing 11 Nothing nobody is permitted to placed on or stand on outdoor unit The falling of goods and people may cause accidents e Don t operate the air conditioner with damp
54. ddress 127 1 1 1 1 1 1 1 Central control address 128 0 Indoor communication address set by remote controller 1 Indoor communication address set by dip switch 502 description 0 0 ES 072 capacity selection 0 1 ES 22 092 capacity selection 4 0 AS122 capacity selection 0 0 LCD display board LCD remote receiver 1 1 LED display board LED remote receiver 0 Room card function valid Room card function unavailable 1 1 11 1 1 1 1 1 1 1 1 1 1 Indoor communication address 1 Indoor communication address 2 Indoor communication address 3 Indoor communication address 4 Indoor communication address 5 Indoor communication address 6 Indoor communication address 7 1 1 1 1 OO Indoor communication address 8 55 f Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Note The above dip switches are correlative to the system security so please confirm the conformity between the unit and the dip switch The incorrect dip switch setting will result in the system wrong operation or the wrong failure diagnosis 2 Cooling oper
55. ection If the power line is damaged in order to avoid risk of electric shock it must be replaced by the manufacturer or its repair center or other similar qualified person The connecting cable must be shielded Fuse 15 250VAC 25 250VAC Please check with the outdoor unit wiring diagram e Please check the circuit diagram about the fuse replaced 2 Wiring method e Wiring method of ring terminals EN For the connection wire with ring terminals its wiring method is shown in lt P the right figure remove the connecting screw put the screw through the ring on the m end of the wire then connect the terminal block and fasten screw al M Wiring Method for Wiring method of straight terminals Ring Terminal Block For the connection wire without orbicular terminals its wiring method is loosen the connection screw and insert the end of the connection wire completely into the Terminal block then fasten the screw Slightly pull the wire outwards to confirm it is firmly held Correct Pressing Wrong Pressing P Terminal P block 9 Oo 9 D D Jl IL IL li Pressing S Clamps 2 Crimp connection method for wires without terminals Connect the wire with Do not connect the Do not connect the same diameter to the wire with same diameter wire with
56. en connect the projection of charge hose center for gaugemanifold into vacuum pump 2 the handle at low gaugemanifold operate vacuum pump If the scale moves of gause low reach vacuum condition in a moment check Dagain 3 Vacuumize for over 15min And check the level gauge which should read 0 1MPa 76 cm Hg at low pressure side After the completion of vacuumizing close the handle Lo in the vacuum pump Check the condition of the scale and hold it for 1 2min If the scale moves back in spite of tightening make flaring work again then return to the beginning of 3 4 the valve rod for the 2 way valve to and an angle of anticlockwise 90 degree After 6 seconds close the 2 If it does not stop gas leakage discharge way valve and make the inspection of gas leakge whole refrigerants from the service port After flaring work again and vacuumize fill In case of gas leakage tighten 5 No gas leakage parts of pipe connection If gt up prescribed refrigerant from the gas M leakage stops then proceed cylinder Osteps 6 Detach the charge hose from the service port open 2 way valve and 3 way Turn the valve rod anticlockwise until hitting lightly 7 prevent the gas leakage turn the service ports cap Y XO G Valve rod the valve rodis cap for 2 way valve and 3 wa
57. ensor disconnected or broken or at wrong position or short circuit Faulty indoor unit PCB Faulty temperature sensor Tm Faulty EEPROM on indoor between indoor and outdoor unit PCB or faulty power supply Indoor unit address repeated Wrong setting of indoor unit address Central control address repeated Wrong setting of centralized control indoor unit Fan is blocked or the terminal is disconnected from the PCB or faulty indoor unit PCB Faulty indoor unit PCB Faulty indoor unit fan motor Faulty driver of indoor unit Check the outdoor unit Abnormalcommunication rm Wrong connection or the wires be disconnected 6 wrong address setting of indoor units or faulty e Malfunction on outdoor unit Note 1 Please contact the installers or distributors when trouble happens 2 Turn the power off and power on again if the failure code recurs please change the indoor unit PCB 3 Failrue codes maked with are resumable 59 B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Outdoor trouble shooting FAILURE STATE OF TROUBLE CODE LED 5 4 3 2 1 SHOOTING OOOO Faulty defrost sensor Te Sensor disconnected or broken or short circuit EN Faulty sensor Sensor disconnected or broken or short circuit 3 oooee Faulty sensor Ts Sensor disconnected or broken or short circuit OO600 Faulty sensor Td Sensor disconnected or broken or short circuit Over cur
58. eration Remote control unit Before go to bed you can press the Sleep button the air conditioner will operate in comfortable sleep mode to make The Sleep running starts The Sleep running stops your sleep more comfortable Usage of the Sleep function About 6 hours After starting set the Run mode and press the Sleep button Run mode 1 In cooling and dry After starting of the Sleep operation the temperature will Glose down be raised for 1 C higher than the set temperature 1 hour temperature later and be raised for 1 C after another hour It continues under that condition for 6 hours then the machine will be switched off The temperature is higher than the set temperature so as to avoid catching cold in sleeping In cooling and dry 2 In heating the single cooling conditioners do not have the function After the Sleep running starts the temperature will drop for 2 C after another one hour The temperature will raise for 1 C after 3 hours running under the above temperature and the conditioner will be closed down after running for 3 hours The temperature is lower than the set temperature so as to avoid uneasiness in sleeping 3 In automatic running The conditioner will run under automatically selected working mode of sleeping 4 In Fan running The Sleep function is invalid 42 Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Set the Close down temperature the machine
59. ess ON OFF button Unit starts running The previous status appears on the display except TIMER SLEEP mode Press MODE button For each press operation mode changes as follows Remote 17 3 controller AUTO COOL DRY FAN HEAT Select Drying operation shows amp Dry operation starts Select temp button Press TEMP button A Every time the button is pressed temp setting increases 1 C w Every time the button is pressed temp setting decreases 1 If the button is kept pressed setting will increase or decrease quickly Press FAN button For each press fan speed changes as follows Remote d gt all ill controller LOW MID HIGH AUTO 39 B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Unit runs at the speed displayed on LCD In DRY mode when room temp becomes 2 C lower than temp setting unit will run intermittently at LOW speed regardless of FAN setting Press ON OFF button Unit stops running and when Temp setting 2 C entering this mode for the next Temp setting V time it will show the previous setting On reaching 2 C lower than temp setting unitwill run in mild DRY mod Fan operation Press ON OFF button Unit starts running The previous status appears on the display except TIMER SLEEP mode 2 Press MODE button For each press operation mode changes as follows Remote 6 controller A
60. et of the unit are not disturbed e Place possible to drain easily where piping can be connected with the outdoor Place where cold air can be spread in a room entirely e Place nearby a power receptacle with enough space around Refer to drawings e Place where the distance of more than 1m from televisions radios wireless apparatuses and fluorescent lamps can be left e In the case of fixing the remote controller on a wall place where the indoor unit can receive signals when the fluorescent lamps in the room are lightened 17 B H alier Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Installation drawings of indoor and outdoor units 1 Do not connect the embedded branch piping and the outdoor unit when only carrying out piping work without connecting the indoor unit in ordor to add another indoor unit later Make sure that no dirt or mositure gets into eigher side of the embedded branch piping 2 It is impossible to connect the indoor unit for one room only Be sure to connect at least 2 rooms Arrangement of piping directions Rear left Attention must be paid to the rising up of drain hose Wrap the insulation pipe with the S finishing tape from bottom to top LR Cut thermal insulation pipe to an appropriate length and wrap it with iw tape making sure that is left Kt CD the insulation pipe s cut line TL A
61. fter indoor receives the ON command from remote controller it will firstly confirm the outdoor current operation mode If they are the same mode indoor unit will run as the request of remote controller If they are different modes the system will forbid to operate and indoor will keep the OFF mode After setting on remote controller if the buzzer sounds two times that shows abnormal operation Indoor will run until the outdoor mode and the requested mode of remote controller are the same 8 Compensation control for discontinuous operation After the unit starts up in cooling heating mode in 3 minutes the compressor run stop will not be controlled by the room temp but after changing the set temp if compressor stop condition can be met the system will stop compressor immediately 9 Anti cold air control In heating mode after compressor startup the system will control indoor fan motor according to indoor coil temperature At the beginning of startup the indoor fan motor can run only when indoor mid coil temp is over 28 C 2 C When indoor mid coil temp goes down to 18 C 2 C indoor fan motor will stop running 56 f Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA In defrosting period indoor fan motor will stop running In heating mode if unit shutoff indoor fan motor will stop after running for 30 seconds at super low speed Note The above temp point has taken fuzzy control and has to
62. he mark of hole for left rear piping which is marked on heat insulation materials 1 Insert the drain hose into the dent of heat insulation materials of indoor unit 2 Insert the indoor outdoor electric cord from backside of indoorunit and pull it out on the front side then connect them 3 Coat the flaring seal face with refrigerant oil and connect pipes Cover the connection part with heat insulation materials closely and make sure fixing with adhesive tape E E 4 Outdoor side Indoor side Wall hole Thickness tomm of wall Section of wall hole Piping hole pipe Heat insulation material ZS Drain hose EC En Indoor outdoor Lid for left piping electric cable Indoor outdoor electric cord and drain hose must Fix with adhesive tape be bound with refrigerant piping by protecting tape signal wire Piping Lid for right piping Lid for under piping Change for fresh air tube 8 Other direction piping e Cut away with a the lid for piping according to the piping direction and then bend the pipe according to the position of wall hole When bending be careful not to crash pipes Connect beforehand the indoor outdoor electric cable and then pull out the connected to the heat insulation of connecting part specially e Hang surely the unit body onto the upper notches of the mounting plate Move the body from side to verify its secure fix
63. in PCB and SPDU connected or faulty main PCB or faulty SPDU 26 eeoeo Compressor locked rotor Faulty compressor or SPDU 727 eeoee Compressor heavy vibration Faulty compressor 28 _ _eeeoo Compressor ose poston SPDU 28 eeeoe compressor start Faulty compressor or SPDU 31 _ Compressor broken Faulty compressor or SPDU Take off the plastic valve cover you can find the LEDs near to the communication terminal Symbol means the LED is ON SymbolO means the LED is OFF 60 Troubleshooting Commercial Air Conditioner Trouble 1 No display on the operation panel PCB is faulty replace it no start check if display Trouble 2 Sensor failure replace display panel and the LM panel and check unit matched again well yes if the red diode if the power and green diode no terminal block is on indoor PCB 220V input flash in turn yes yes check if display check if power panel is 12V wiring is in open power supply circuit yes yes display panel replace power circuit is damaged wiring and replace it check again start as per the wiring diagram check the connection between sensor and PCB is correct no yes 1 check if sensor is open circuit or PCB port is not in good condition no yes replace sensor and check again 61 Model AU
64. ing order to fix the body onto the mounting plate hold up the body aslant from the underside and then put it down perpendicularly 9 Indoor unit communication addresses setting CAUTION FAIL TO DO THIS THE UNIT WILL NOT WORK 1 There are two methods to set the communication address A Use the remote controller default status in first installation B Use dip switches on the indoor unit PCB 2 Address setting procedure when using the remote controller A Set the addresses only after the successful installation of the refrigerant pipes and connecting cables and open all the stop valves B Please confirm that the indoor units and the outdoor unit in the same system use the same power source C Power on the units but put all the indoor units in the status of STANDBY D Please note that the address must be set as following Indoor unit that connect to valve A the address must be 1 Indoor unit that connect to valve B the address must be 2 Indoor unit that connect to valve the address must be 3 E Example set unit Ato address 1 33 H aler Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Continuously press the emergency switch for about 15 seconds the buzzer will sound 4 times PI PI PI PI and then leave go of the switch At this time the indoor unit has entered the address setting procedure But the LCD display board is blank F Use the controller to turn on the indoor
65. is normal 7 Operate the unit according to the operation manual Please kindly explain to our customers how to operate through the instruction manual Items to confirm Check items for test run put mark int Gas leakage from pipe connection Heat insulation treatment of pipe connection Are the connection wiring of indoor and outdoor unit firmly inserted into the terminal block O Is the connection wiring of indoor and outdoor firmly fixed O Is drainage securely arranged Is the ground wire securely and firmly connected LJ Is power supply voltage abided by electric code Is there any noise 0 Does cooling perform normally 0 Does room temperature regulator operate normally 26 Haier Indoor unit installation Cautions All electrical repairs must be carried out by qualified electricians Inadequate repairs may result in a major source of danger for the user of the air conditioner e Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the air conditioner s tubes with sharp or pointed items crushing or twisting any tubes or scraping the coatings off the surfaces If the refrigerant spurts out and gets into eyes it may result in serious eye injuries e Do not obstruct or cover the ventilation grille of the air conditioner Do not put fingers or any other things into the inlet outlet and swing louver e Do not allow children to play with the
66. ld and charging hose 14 5 1 Outdoor Installation Cautions All electrical repairs must be carried out by qualified electricians Inadequate repairs may result in a major source of danger for the user of the air conditoiner Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the air conditioner s tubes with sharp or pointed items crushing or twisting any tubes or scraping the coatings off the surfaces If the refrigerant spurts out and gets into eyes it may result in serious eye injuries e Do not obstruct or cover the ventilation grille of the air conditioner Do not put fingers or any other things into the inlet outlet and swing louver e Do not allow children to play with the air conditioner In no case should children be allowed to sit on the outdoor unit Specifications The refrigerating circuit is leak proof The machine is adaptive in following situation 1 Applicable ambient temperature range Maximum D B W B 32 C 22C ing 11999 uinimumD BW B 18014 Cooling amen a 5 cem asenso 10 C 6C Heating Minimum D B 20 C mm Safety precautions Commercial Air Conditioner Model AU18 222XFERA 5072 092 122 2 If the supply cord is damaged it must be replaced by the manufacturer or its service agentor a similar qualified person 3 If the fuse on PC board is broken please change it with the type of T 3 15A
67. lerance 2 C according to the different state 10 Fan motor control in defrosting 10 1 On receiving outdoor defrosting signal indoor unit will stop after blowing remaining heat at slow speed for 20 seconds 10 2 In defrosting period indoor fan motor stops running 10 3 Defrosting is over and indoor motor will run as anti cold air state 11 Blowing remaining heat operation When the unit shuts off in heating mode or the thermostat is OFF indoor motor will stop running after running at super low speed for 30 seconds 12 Anti freezed protection invalid in heating mode When compressor has run for over 5 minutes to prevent indoor evaporator freezing in cooling dry mode if indoor mid coil temp is below 0 degree compressor will stop When indoor mid coil temp is over about 10 degree the unit can run After compressor has stopped for 3 minutes the unit can re start up Note The above temp point has taken fuzzy control and has tolerance 1 according to the different state 13 Overload protection in heating mode is valid only in heating mode if indoor mid coil temp is over about 65 degree continuously for 10 seconds indoor will stop while when indoor mid coil temp is below 52 degree indoor will resume Note The above temp point has taken fuzzy control and has tolerance 1 C according to the different state 14 Timer operation TIMER ON TIMER OFF TIMER ON OFF Timer will count according to the time difference
68. ling concealed type U stands for outdoor unit Air Conditioner 1 2 Brief Introduction for T1 T2 T3 working condition Climate type Type of Air T1 T2 T Conditioner Cooling Only 18 C 43 C 10 C 35 C 21 C 52 C Heat pump 7 7 C 35 C 7 C 52 C Electricity Heating 43 C 935 C 52 C 1 3 Operating Range of Air Conditioners Working temperature range Rated Maximum Minimum Cooling Indoor DB C 27 32 18 19 23 14 outdoor 35 43 10 WB C 24 26 6 Heating Indoor DBC 20 27 15 WB C 14 5 L outdoor n 24 5 WB C 6 18 L B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 1 4 Product features High efficienct universal outdoor unit The outdoor unit can match with wall mounted type duct and cassette type indoor unit One set outdoor can match with multiple indoor units up to 3 sets Even when you have already installed the air conditioner if you want to add or reduce one unit go ahead freely as long as your operation complies with our design Greatly convenient for designer and installer Total indoor load can be up to 135 than the standard match The total capacity of all indoor units can be 13596 more than the mominal cooling capacity but the total indoor cooling capacity will not be increased Newly designed V appearance indoor unit The wall mounted type indoor unit adopts the
69. m 3 1 Refrigerant diagram 47 B H Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Te Tc X TinB Tocil L Tma Taic Taib Taia MST HPSW TouC TouB TouA 751 3 2 Outdoor frequency control 3 2 1 Compressor running frequency range 20 90RPS 3 2 2 Defination of high efficiency operation and its frequency control In order to meet the cooling request at high ambient temperature and the heating request at low ambient temperature we set the high efficiency operation Entering condition cooling mode Tao 33 C E heating mode Taox 5 C E 3 3 Electronic expansion valve EEV control 3 3 1 Electronic characteristic Max open angle 500 pulse Driving speed PPS 3 3 2 Initialization of EEV EEV driving speed open direction 32MS close direction 32MS 3 3 3 Open angle limitation of EEV Unit stop Adjustable upper Thermostat ON Thermostat Adjustable lower limitation OFF limitation Cool dry 5 450 standard open 5 80 E angle tolerance heat 60 E 450 E standard open 60 80 E angle tolerance 3 3 4 Standard open angle control In Cool Dry mode standard open angle outdoor ambient temp 220 C 250 pulse E Outdoor ambient temp 20 C 210 pulse E In Heat mode standard open angle outdoor ambient temp 10 C pulse E
70. mes in 1 hour the 101 unit will stop and alarm 0 951 Reduce FQY rapidly 2HZ S 0 931 Reduce FQY rapidly 1HZ S 0 901 Reduce FQY slowly 1HZ 10S 0 881 Remain FQY 0 851 Increase FQY slowly 1HZ 10S 52 lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 3 10 High pressure protection When the input signal of pressure switch is high level 1 that shows there is no protection When the input signal of pressure switch is low level 0 for 1 minute that shows high pressure protection works At this time compressor stops outdoor will send the alarm signal The alarm can be resumable If in 60 minutes the failure occurs 3 times the failure can be confirmed and send failure code to indoor Meanwhile by controling the max condensate temp Tc cooling TmAVE heating please confirm as follow In nominal cooling dry heating mode high pressure can be controlled by limiting the max frequency Keep for 5 seconds stop to alarm after 3 minute standby the unit can restartup In 3 minutes it occurs 3 times continously unit will stop to alarm and the failure can be resumed after being electrified again Reduce FQY rapidly 2HZ S 70 68 C 66 C Reduce FQY rapidly 1HZ S 64 C Reduce FQY slowly 1HZ 10S Condensing temp 62 C Remain FQY 60 C 1HZ 10S 3 11 Low pressure protection 1 When compressor is running if output signal of low pressure switch is low level 0 for 1 minute
71. newly designed V appearance more fashion more beautiful The unit is designed with the health airflow and sterilize function which will make the air more healthy Also the air blow direction can be set as step or stepless control much convenient to control Newly designed guarding plate of valve In order to protect the valve against the dust the rain or the snow etc we add a guarding plate to the valve Adopt the much friendlier refrigerant R410a The air conditioner system adopts the greatly friendly refrigerant R410a which is protective for the ozone layer and is good to avoid the earth getting warmer Benefit for the environment Adopt the advanced DC inverter technology The system adopts the advanced DC inverter technology which can consume less power energy to realize the equal efficiency saving money for you With air inlet filter enhance the air quality The high efficiency filter can collect the dirt and remove the bacterium which can be installed on the easy to unload place convenient to be cleaned Convenient infrared remote controller This remote controller YR H65 can realize the healthy air flow and sterilize function it is mobile type appearance so smart and compact And the infrared controller can be equipped with the controller holder convenient to fix the remote controller B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Auto restart function option
72. nstallation instructions 13 6 Parts and 36 7 Remote controller 65 37 8 Refrigerant 2 1 45 9 Electrical control 47 10 Diagnostic information and trouble shooting 59 ane toene beans 65 12 Performance 71 13 Noise level 15 14 Air velocity distribution 78 2 B H alef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 1 Description of products amp features 1 1 Products code explanation 0182 ER A Climate type T1 see table 1 Design number R stands for design sequence DC inverter type Product type A stands for heat pump type refrigerant is R22 B stands for heat pump type refrigerant is R407C E stands for heat pump type refrigerant is R410A N stands for cool only type refrigerant is R407C Appearance character Product series X stands for multi split series Applicable voltage 2 stands for 220 230V 50Hz 4 stands for 220V 60Hz N stand for 380 400V 50Hz Cooling Heating capacity 18 18000BTU h Product type stands for cassette type stands for convertible type D stands for duct S stands for wall mounted type E stands for cei
73. o ON if fail to do this the addresses set by SW02 will not work E Use SW02 to set the addresses as following DO NOT CHANGE OTHER DIP SWITCHES swol SWo2 INDOOR UNIT ADDRESS 112345678 11213145678 ON ON OFF OFF 1 ON OFF 2 7 ON OFF 3 4 How to check the addresses necessary procedure When finish all the above works please power off and power on again to the whole system but set all the indoor units in STANDBY Then continously press the emergency switch until you hear the buzzer sound 5 times Pi Pi Pi Pi Pi and then the LCD display board will show the address of this indoor unit Press any key on the remote controller it will exit the address checking precedure 10 Installation check and trial operation Check the Layout of the Drain Pipe and Connection Wires and also the piping and address setting The drain pipe should be placed underneath and the connection wires should be placed upside and the drain pipe especially the section inside the machine and indoors must be wound up with insulating material to preserve heat The drain pipe shall be sloped and no concave and convex shall occur along the whole pipe And the cases as the right figure indicates shall not occur 10 1 Installation check e 15 power supply voltage required e 5 water completely drained to outdoors Are power wire and connection wires between indoor and outdoor units correctly c
74. on es yes d replace sensor PCB is faulty and check and repalce it again check again Trouble 9 AC current over current protection or current transducer damaged or compressor blocked rotor compressor great vibration compressor abnormal startup state detecting curcuit abnormal or compressor damaged The former twice failure can be resumed automatically if outdoor board occurs this failure always and can not be resumed for a long time that shows 1 Power module SPDU damaged please replace the power module then re wiring as per the wiring diagram 70 possibility 2 Short circuit in power board results in the power module damaged 15 possibility 3 Damaged compressor results in this failure 10 6 possibility 4 Main control board is faulty replace it 5 possibility Trouble 10 High pressure failure Reasons 1 Over high system pressure results that the unit stop and the compressor protection will work The failure can be resumed 2 Pressure switch wire is not fixed well or in open circuit start if outdoor fan check if the connector between pressure switch and PCB is fixed badly or damaged yes replace pressure switch connector shut off and be electrified again re check no check if the 2 straight _ lugs on the pressure switch are in good condition yes replace pressure switch connector shut off and be electrified again re
75. onnected s any gas leaked from the pipe connectors e Are series numbers of the terminals on the indoor and outdoor units corresponding to each other e the connection section of the auxiliary pipe insulated Is the indoor unit fixed firmly 15 noise big 34 lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 10 2 Trial operation The person who has completed this installation shall be requested to conduct a test operation for check 5 the temperature adjuster working normally eDoes the location for installation conform to requirements Winding up with Protective Plastic Tape The connection pipe and the connection wires shall be wound up with PVC tape Notes The connection pipes shall also be wound up with insulating material to preserve the temperature The airing direction shall be from bottom to top 35 lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 6 Parts and Functions Top cover Terminal block Wire cover A Wire cover B Valve cover ble Stop valve Air inlet grille inlet grille L Front panel Air inlet grille 2 NS L O Display board 36 B H Commercial Air Conditioner Model AU18 22
76. ools R410A work requires a number of special tools symbol Since the tools used R22 work cannot be used for R410A provide the tools separately Tool name Process and application Pipe cutter Piping cutting Refrigerant piping work Flaring tool Pipe flaring work Torque wrench Flare nut connection Expander Expansion at pipe connection Pipe bender Pipe bending work Nitrogen gas Pipe oxidation prevention Air tightness test Welder Pipe brazing Gauge manifold Vacuum evacuation refrigerant Air tightness test Charging hose charging operation check Refrigerant additional charging Vacuum pump with Vacuum drying adapter Electronic scale Refrigerant additional Gas leakage detector Gas leakage test charging B Work precautions Refrigerant check Before work check the used refrigerant and prepare materials matched to the refrigerant Refrigerant piping Observe the basics of refrigerant piping to avoid the unnecessary problems In addition when performing the welding work seal in the nitrogen gas to the pipes and prevent it from the oxidation Leak pressure detection Perform seal detection and make sure there is no refrigerant leakage Vacuum drying If the vacuum pump has not the reverse flow check mechanism use the pump together with a reverse flow check adapter Additional refrigerant Charge a suitable amount of refrigerant with a special R410A gauge manifo
77. pue Aouenbau azo ey JOOPU BU JO jeprno pue eu ejyejnojeo OL SCONES eu YM enjeA sedns jee au ejejnojeo 01 ScOMOL eunsseJd ypy pue 9578 JosseJduuoo JO SAN 24 UI Jedns y ejejnojeo OL 84400 uomoejoud eunsseJd pue Kouenbauj JosseJduJoo azo 42618 JO SAN eu Buneeu Jedns y ejejnojeo OL 54400 ey Jo dn eui pue pue HS ejejnojeo OL 99200 0 dosuas sy pinbij UOIJINS ul pinbij ou ojeJedeg FAL wajs s 12910 44 snoues ulejs s 10 00 BiNnsseid uomons USUM ulejs s ey IND 0 50 0 een LL lt pue Buij009 HS 1eBJej pue uionnquisip 519009 uoneJedo 1soJjep 104 050 Josues ei 4ejeau pue 1 ouenbou 10 4 OSzOMEZ
78. r cable ER Communication cable 24075 125mm must be shielded 1 220 230 50 Fan x Number CROSSx1 1250 1150 1050 27 H Function mm mm mm H M L B A 36 33 30 38 34 31 9 mm mm h W 3 h Motor output power w 7o o eat exchanger en _ Dimension LW Controller RR Refrigerant control Refrigerant fye RA Comedigmehod B H Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Norminal condition indoor temperature cooling 27 CDB 19 CWB indoor temperature heating 20 C DB Outdoor temperature cooling 35 CDB 24 C WB outdoor temperature heating 7 CDB 6 CWB The noise level will be measured in the third octave band limited values using a Real Time Analyser calibrated sound intensity meter It is a sound pressure noise level The detailed method please refer to the following information Installation state the unit should be placed on the flat floor or be mounted in horizontal direction Testing method mounting on wall unit outdoor unit 1 air outlet from side the noise level is the average sound pressure level measured from front left right directions 2 air outlet from top the noise level is the average sound pressure level measured from front back left right directions measured point H height to the ground 7 h unit height 1m 2 and it is 1m to each side Note
79. r to avoid electric shock e Arrange water drainage according to this manual Cover pipe with insulation materials to prevent condensation occuring Improper installation of water drainage will cause water leakage To maintain good picture or reduce noise keep the unit at least 1m from T V or radio e When installing the communication wire and power supply If the radio wave is relatively strong 1m is not enough to reduce the interference e Do not install the unit in following places a Oil mist or oil gas exists such as kitchen or plastic parts may age or water leakage b Where there is corrosive gas Copper tube and welded part may be damaged due to corrosion causing leakage c Where there is strong radiation It will affect the unit s control system causing malfunction of the unit d Where there are flammable gas dirt and volatile matter thinner gasoline exist these items will cause a fire risk 16 Haier Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Installation accessories The following accessories are supplied together with the outdoor unit No Drawing Name of parts Quantity 1 E Drainage elbow 1 2 lt Rubber cushion 4 3 mmm Clamp 1 Choose the installation place e Place robust not causing vibration where the body can be supported sufficiently e Place not affected by heat or steam generated in the vicinity where inlet and outl
80. rent of the system or broken of the current Input overcurrent sensor or malfunction with indoor or outdoor fan motors or faulty PCB Abnormal communication Wrong connection or the wires be disconnected or between indoor and outdoor wrong address setting of indoor units or faulty PCB or faulty power supply POSSIBLE REASONS High pressure switch is disconnected or high System high pressure pressure switch worked or Tc too high and faulty protection outdoor fan motor when cooling or faulty indoor fan motors when heating or refrigerant overabundance Low pressure switch is disconnected or low System low pressure pressure switch worked or Te too low and faulty protection outdoor fan motors when heating or faulty indoor fan motor when cooling or refrigerant shortage IPM over current or short circuit or IPM IPM protection temperature too high or IPM input voltage too low or faulty SPDU Serious lack of refrigerant of the system or the ambient temperature too high or PMVs be blocked Fan is blocked or the terminal is disconnected from the PCB Faulty 4 way valve Coil of 4 way valve is disconnected or faulty switching on outdoor PCB Dr peer Faulty sensor Tc Sensor disconnected or broken or short circuit Faulty sensor Toci Sensor disconnected or broken or short circuit Over hot protection of compressor DC fan motor fault Abnormal communication A os Communication cables broken not well between ma
81. ressor not running the unti still can enter manual defrosting but it will comply with the 3 minute protection of compressor 50 3 7 4 Defrosting operation flow chart Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 4 way valve ON Spray valve SV2 OFF 11 45d puise auto open angle all EEVs 11 fixed frequency indicated FQY 60 OHZ 4 Ps outdoor motor ON end defrosting FQY 80 Hz E 350 pulse E all indoor motors ON anfi cold air f nction 1450 uto open angle eeepc 51 B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 3 8 Frequency control when Td is too high Purpose make compressor frequency control if the discharging temp is too high to lower the discharging temp efficiently and ensure the system can run normally If keeping for 10s the unit stops 3 minutes later the unit can re startup If in 60 minutesthe unit occurs alarm for 3 times the failure can be eliminated Q 120 C He a Reduce FQY rapidly 2HZ S 115C Reduce rapidly 1HZ S 110 Reduce slowly 1HZ 10S 105C Remain FQY 100 C Increase FQY slowly 1HZ 10S 95 3 9 Frequency control when there is over current protection Stop immediately if abnormal stop 3 ti
82. rrect installation will cause water leakage electric shock or fire risk e Be sure to use specified accessories and parts Otherwise water leakage electric shock fire risk or unit falling down may occur e Mounting position must be strong enough to hold the unit Or the unit will potentially fall down causing injuries e When installing the unit take in consideration storms and high winds Incorrect installation may cause the unit to fall down e All electric work should be carried out by experienced personnel as per current regulations and this manual Incorrect installation or undersized electric cable may cause electric shock or fire risk e All circuits must be earthed Ensure that no external forces will affect the terminal block and electric cable Poor wiring and installation may cause fire risk e Arrange wire connection between connecting the indoor and outdoor power supply correctly Fix terminal cover firmly to avoid overheating electric shock or even fire risk In the case of a refrigerant leakage during unit installation keep the room well ventilated e Check the unit upon installation Be sure there is no leakage Refrigerant will induce a poisonous gas subject to heat solate power supply before touching terminal block N WARNING e All units shall be earthed The earth must not be connected to a gas pipe water pipe or telephone line Poor earthing could cause electric shock e Be sure to install a circuit breake
83. s refrigerant will be segregated from the refrigerant oil and cause soam in the oil which will make compressor exhaust a lot of oil Therefore please stop heating the compressor bottom to ensure the low pressure in startup period should not go down greatly Ambient temp TA lt 27degree when compressor stops the electric heater will be electrified When TAZ32degree or compressor running the electric heater will be off OFF Ambient temp 27 32 3 6 Control of liquid spray valve SV2 According to the compressor discharging temp open or close the SV2 Control condition A In every mode including defrosting and oil return operation the control can work B In 3 minutes after compressor startup ignore the abnormal compressor suction and discharging value 3 minutes later after compressor startup according to the discharging temp the following procedure will be taken Td lt 90 C SV2 close Td gt 110 C SV2 open In 150 seconds when compressor stops in order to keep the system in balanc please open the liquid spray valve SV2 150 seconds later after compressor stops SV2 close 3 7 Control of defrosting in heating In heating mode defrosting temp sensor will check the frosting condition of outdoor heat exchanger and make defrosting control 3 7 1 Enter condition In heating mode if the compressor has run for 10 minutes continously and run for 45 minutes in all the system will measure the defrosting
84. summer is too higher to avoid bad heating or cooling effect Bl Limitations on the installation 1 Precautions on installation Check the strength and level of the installation ground so that unit will not cause any operating vibration or noise after installation n accordance with the foundation drawing in fix the unit securely by means of the foundation bolts t is best to screw in the foundation bolts unit their length are 20 mm from the foundation surface 2 Selecting a location for installation of the indoor units The maxinum allowable length of refrigerant piping and the maxmum allowable height difference between the outdoor and indoor units are listed below The shorter the refrigerant piping the better the performance Connect so that the piping is as short as possible Shortest allowable length per room is 3m 19 B Ha lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 3 Limitations data on the piping work The piping length information please refer the following table Item i Descriptions Standard Maximum A B C liquid pipe Size of the liquid side connection pipe 6 35 I A B C Gas pipe Size of the gas side connection pipe 9 52 1
85. temperature sensor Te and outdoor ambient temp sensor TA if the below condition can be met for continous 5 minutes the unit will enter defrosting operation 49 B H a lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Herein C 0 8 TAZOC 0 6 According to SW2 the setting is follow in the place easy to frost it is H when out of factory it is Jumper M out of factory H selection 8 6 Defrosting entering condition 15 C lt C X TA a lt 2 C Stop and Pause condition of compressor running accumulative time in heating mode Checking Stop running operation changes from heating to cooling Checking Pause thermostat OFF or the unit stops 3 7 2 Cancel condition It will take the max 10 minutes from beginning defrosting to quit it Te sensor will measure the condition of outdoor heat exchanger if the temp is over 7 C for 60 seconds in all or is up to 12 C for 30 seconds in all the defrosting will be over 3 7 3 Compulsory defrosting control Enter condition in heating mode after receiving the compulsory defrosting signal from indoor unit the unit will perform the compulsory defrosting operation Cancel condition gt 12 and keep for 1 minute or the defrosting time is over 10 minutes The manual defrosting signal of indoor unit will remain until the outdoor enters defrosting mode Note When outdoor comp
86. ting power line to power supply terminal please pay attention to the following items Do not connect the power line with different dimensions to the same connection wire end Improper contact will cause heat generation Do not connect the power line with different dimensions to the same grounding wire end Improper contact will affect protection Keep a proper distance between the communication wire and the power line Otherwise abnormal communication will occur because of disturbance e Do not connect the power line to the connecting end of communication wire Incorrect connection will cause damage to the connected unit 24 B H a lef Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA 5 Example wiring diagram Indoor unit C Indoor unit B Indoor unit A 1 L 2 N T 1020 5 aes IE 1PH 220 230V 50Hz Outdoor unit Power supply cable HOSRN F 36 4 0mm h i im Communication cable Shield wire HOBRN F 2X1 5mm Connecting cable Shield wire 3G 2 5mm Please refer to the indoor unit installation manual to find detailly how to set and check the communication address Incorrect address setting will cause abnormal to the system The distance between the signal wires and the power cabes should be at le
87. tion SW5 3 SW5 4 piping length selection the set data is M when out of factory SW5 3 OFF SW4 ON L SW5 3 ON SW4 OFF SW5 3 ON SW4 ON SW5 3 OFF SW4 OFF C3 Switch function SW5 5 SW5 6 outdoor horse power selection for different outdoor the current limitation is different too The corresponding selection must be taken or the module protection will occur 2HP SW5 5 OFF SW5 6 ON 2 5HP SW5 5 ON SW5 6 OFF 3HP SW5 5 ON SW5 6 ON 3 5HP SW5 5 OFF SW5 6 OFF C4 Switch function SW5 7 SW5 8 SW5 7 pre set set as OFF when out of factory SW5 8 silent operation function ON available OFF not available set when out of factory When it is ON the max fan speed is Class 6 and the max running frequency is 10 2 C8 Set in factory 2 Defination of 4 bit dip switch SW5 on failure indicator board 1 2 3 4 Defination OFF OFF OFF OFF State when out of factory normal state Compulsory cooling frequency 60HZ outdoor fan motor Class 7 fixed open angle OFF ON OFF OFF 300 the others are in normal state BN Compulsory heating frequency 50HZ outdoor fan motor Class 5 fixed open angle 300 the others are in normal state Rated operation auto changeover for cool heat max frequency 53HZ E in cooling OFF OFF ON OFF and max frequency 72HZ E in heating the frequency is set automatically in other states 3 Main control functions 3 1 Refrigerant diagra
88. tl controller LOW MID HIGH AUTO Unit runs at the speed displayed on LCD When fan speed is AUTO it is changed automatically according to the indoor temperature 9 Press ON OFF button Unit stops running Note During Auto run operation temp setting will be shown in LCD display unit will select heating cooling or fan operation according to the room temp 38 Haier Cooling operation Dry operation Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA Press ON OFF button Unit starts running The previous status appears on the display except TIMER SLEEP mode Press MODE button For each press operation mode changes as follows Remote Vk 6 3 controller AUTO COOL DRY FAN HEAT Select cooling operation Shows cooling operation starts 9 Select temp button Press TEMP button A Every time the button is pressed temp setting increases 1 C Every time the button is pressed temp setting decreases 1 C If the button is kept pressed setting will increase or decrease quickly Press FAN button For each press fan speed changes as follows Remote d gt al ii controller LOW MID HIGH AUTO Unit runs at the speed displayed on LCD When fan speed is AUTO it is changed automatically according to the indoor temperature 5 Press ON OFF button Unit stops running and when entry this mode for the next time it will show the previous setting Pr
89. y batteries cylinder Be sure that the loading is in line with the pole request as illustrated Put on the cover again Confirmation indicator In disorderation reload the batteries or load the new batteries after 5 mins Note The waster batteries should be disposed properly use two new same type batteries when loading If the remote controller can function normally or doesnt work at all use a sharp pointed item to press the reset key Hint Remove the batteries in case unit wont be in usage for a long period If there are any displays after taking out just need to press reset key When throw away the waste batteries please perform in accordance with the local regulation 2R 03 dry batteries Auto operation D Press ON OFF button Unit starts running The previous status appears on the display except TIMER SLEEP mode Press MODE button For each press operation mode changes as follows Remote 1 D 3 ON controller AUTO COOL DRY FAN HEAT DFA 5 S Select Auto run lt gt lt gt V7 appears and auto run starts Select temp button Press TEMP button Every time the button is pressed temp setting increases 1 C Every time the button is pressed temp setting decreases TC If the button is kept pressed setting will increase or decrease quickly 9 Press FAN For each press operation mode changes as follows Remote afl aul uii gt u
90. y s a little oe Dvalve rod cap more than the point where the torque increases suddenly D service port cap SIN 22 B H aler Commercial Air Conditioner Model AU18 222XFERA AS072 092 122XVERA CAUTION 2 way valve Gre To indoor unit A If the refrigerant of the air conditioner leaks it is necessary way valve dn to make all the refrigerant out Vacuumize first then charge Bu de NU 34 m To indoor unit B the liquid refrigerant into air conditioner according to the e ce 3 way valve 4 ET e9 52mm 373 amount marked on the nameplate 6 9 8 2 fig 06 351 i D To indoor unit C 29 52mm 3 8 wiring work 1 Electric wiring Note e The air conditioner must use special circuit and wiring by the qualified electrician according to the wiring rules specified in national standard e The grounding wire and the neutral wire shall be strictly separated Connect the neutral wire with grounding wire is incorrect The electric leakage breaker must be installed All the electric wire must be copper wire When wiring there shall keep a proper distance between the power line and communication wire to avoid twist together Otherwise signal disturbance will occur and the air conditioner can not operate normally Power supply 220 230V 50Hz e The wiring method of power line is Y conn

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