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Commercial Air Conditioning SERVICE MANUAL Models

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3. CRANKCASE AWAY 8 2 svi HEART FM3 j J owe CN208 CN206 CN205 32 3271 1 2 3 4 5 2 1 2 112 T J B CN303 CN308 CN307 JP301 RY203 RY202 1 3 3 cuan 1 RY2 4 2 CN202 5 5 onsiz 1 1 4 CN313 2 RY209 2 i Una CN302 1 3 gt TRY208 4 5 15 11 2 s 24 Power Supply Board Control Board 2 il 7 CN316 2 2 2 5 RY207 3 3 CN317 1 4 2 E 4 4 2 5 5 8 S 2 2 7 A cN305 CN212 8 8 1 il 0 custo 3 10 10 T3 15A 250VAC 41 4 5 CN201 12 CN306 CN309 CN304 CN204 3211 20191615218 7 4 1 112 3 45 6 7 89 1234 1 2 L 20916151211817 411 11213145167 819 CN103 CN105 R101 IPM gt R114 Pl 122 u o RY101 RECTIFIER Noise Filter 1 1 20 07 2 CN104 3 4 Anti surge relay C1 C2 8 Lmilma 11 Communication PowerSupply Y G YIG AB 2FCBIA wiring diagram Model AU242FHBIA AU482FIBIA AU48NFIBJA 0010577105 TSINK Remarks 1 CN302 CN303 are ports for controllers and will be used in maintenance 2 Parts in dashed frame are optional Symbols meaning symbol part name symbol part name CM compressor Te defrosing temp sensor FM fan motor Ta ambient temp sensor OX P oxygen bar function Ts suction temp sensor 4 WAY 4 way valve Td disc
4. 9 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Upper cover of wire 1 Remove upper cover of wire controller controller Remove upper part of wire controller by press il PCB is mounted on lower part wire Lower ever controller controller be careful not to damage it 10 2 Install the wired remote controller Please drill two holes on the wall according to the back cover screw hole position of the wire remote controller then strike the wood block to the holes respectively then align the 2 screw hole of the wire controller back cover to the wood block fasten Switch button the wire reote controller to the wall use wood Screw hole 0000 B gt screws 3 Switch setting The switchs setting as follows 1 ON 2 OFF 3 ON 4 Note Try as far as possible a flat surface for installation pem Don t use excessive force when tightening screws m or lower part might got deformed OOOO 4 Connecting method as the following chart o Back cover of the wire ol controller 0 1 A 2 B Ra 9
5. Compressor Lamp O O O O 3 TIMER Lamp TIMER OPER POWER ER OPERATION Lamp 5 Power Lamp Emergency switch Ceiling concealed unit fan inside motor inside air outlet gille drainage pipe liquid pipe evaporator 54 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Wall mounted unit signal receiver window air inlet grille air filter inside air outlet grille louver 55 T Controller functions 7 1 Wired controller YR E06 15 Commercial Conditioner 1 ON OFF button Used to turn on off unit 2 Temperature display 3 Clock display 4 Timer ON OFF display 5 Humidity display 6 Air filter cleaning display When there is too much dust collected on the air inlet the wire controller will show this display to remind theuser to clean the air inlet After cleaning and installation just press the air filter reset button 7 Super Soft operation display 8 Fan speed display EX gt Low Fan Med Fan High Fan Aut 9 Auto Swing display 10 Health state display 11 Fresh air state display 12 Humidifying state display 13 Sleep state display 14 Network control display 15 Working mode display Working Auto Cooling Dehumidifying Heating Fan mode operation
6. amp 1 5 lt 5 9 515 5 cic 6mm a O He C 7RB267H03AA SANYO SHENYANG Compressor Type x Number Running Max Running current Start Current Z 5 c 5 Q lt e 2 lt Z c 3 o gt o TyperDiameer mm mersseedeperppe 0052 Outdoor unit outdoor upper 30 outdoor lower 20 Between 1 0 amp O D m T m CO Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AUA82FIBIA lC RN AUA82FIBIA unction NENNT NEAN cooling Capacity 48000 EE N v Hz Running Max Running curent cooling heating 3040n E CA o IESU L Unit model color AU82HBIA whit pod p O otal power input 79 e HAE 5 oio Ce lt o ml 5 TD 5 212 510 ais 5 5 lt 5 Q Compressor ce Number Szos3ormiB4os4OrminSGOsSOrmin __ Heat exchanger Rownpich Temp scope Roffigerant control method Defrosting Volume of Accumulator Noise level o
7. TIMER lamp flash times Failure description Once Liquid pipe temperature sensor failure twice Gas pipe temperature sensor failure 3 times Ambient temperature sensor failure 4 times Communication abnormal between indoor and outdoor 5 times Communication abnormal with EEV box 10 times Indoor motor abnormal 11 times Float switch or pump motor abnormal 12 times Repeated indoor unit number 13 times Indoor over heat Note if indoor RUN lamp flashes that shows outdoor abnormal so no matter how many times it flashes you should check outdoor indicator flash times and the relative failure code 101 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 10 3 AU242FHBIA AU482FIBIA troubleshooting 1 Communication failure between indoor and outdoor units Wired controller E9 4 flashes of TIMER lamp Is indoor unit address B properly set Without repetition yes Are communication terminals of indoor and outdoor units securely connected no yes Is shielded wire used for communication yes Are communication wire na and power cable set separately yes Is there external signal yes interference T Is indoor mainboard poorly welded no Are communication resistance and capacitor of indoor PCB correct See NOTE yes T Check outdoor mainboard 0010450351 Make necessary replacement yes Reset address
8. heat preservation material 4 12 7 09 5 120 Refrigerant pipes between manifold pipes Total refrigerating amount of indoor unit group after the manifold pipe Less than 38220Btu h 38220 61157Btu h 61157 126137Btu h Note 1 Y shape manifold pipe can be placed in horizontal or vertical direction 2 The manifold pipes must be welded with hard solder 3 Pay attention to cut off the unnecessary part from its middle parts of each joint and to remove burr Gas side Liquid side 22 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA In the file the figure marked with is permitted and the figure marked with X is prohibited You can confirm the position according to the actual condition The refrigerant flow direction is always from the collective side to the divided side horizontal horizontal 777 floor surface 77777 floor surface vertical TI floor surface floor surface vertical floor surface floor surface 23 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 3 Instructions for the Electrical Expansion Valve Boxes The E E V B general information for the C MRV and H MRV indoor units 1 Installation position 0 x y OD 7 wiring connector 3609 AC liquid pipe in out 180 0 2 vertical direction X Y horizont
9. A Eo 9 12 Haier Commercial Air Conditioner Model AU242FHBIA AUA482FIBIA AU48NFIBJA Norminal condition indoor temperature cooling 27 CDB 19 CWB indoor temperature heating 20 CDB Outdoor temperature cooling 35 CDB 24 CWB 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 built in ceiling unit duct unit without auxiliary duct A 422 4d 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 height to the ground h unit height 1m 2 and it is 1m to each side Note is the real time analyser position 13 Haier Commercial Air Conditioner Model AU242FHBIA 3 Safety precaution AU482FIBIA AU48NFIBJA Carefully read the following information in order to
10. 5 C 63 33 8 05 6 C 173 TE 56 86 743 8 C 53 91 7 14 gC 51 13 6 86 10 C 48 51 11C 46 04 6 34 12 43 72 6 1 13 C 41 52 5 87 14 C 39 45 5 65 15 C 37 5 5 44 16 C 35 66 5 24 17 C 33 92 18 C 32 27 19 C 30 72 20 C 29 25 21 27 86 22 C 26 54 23 C 25 3 94 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 9 Wiring diagram AU242FHBIA Wiring diagram 4 Way Spray Oxygen Fan Motor vere See Parts in dashed frame are Compressor ed m M optional x Motor N y 4 Capacitor XO Des den E CN3CN7 CN4 CN6 CN22 CN23 5 Power Supply a 1 1 1PH 220v 230V 50Hz B PTC SNP B Y G B Control Board CN1015 E CN120 B is L J A gt Connected To Ind IPM B Mou ES Communication Wire R B a E RL1 CN18 Indoor unit ov R 7 Power Supply w CN102 4PH 220v 230V 50Hz ow R w Defrost Temp Sensor Discharge Temp Sensor Ambient Temp Sensor BL OR BL Y Suction Temp Sensor CN30 CN16 CN34 77 Mid Condensor Temp Sensor R Electrolytic Electrolytic 7 N M 2500 F 400V 7 100 u F 400V High pressure Low pressure B Switch Switch Electronic expansion Valve B B
11. Subsidiary insulation istud Rigid PVC pipe Drain confirmation During trial run check that there is no leakage at the pipe connection part during water draining even in winter Allowable pipe length and drop These parameters differ according to the outdoor unit See the instruction manual attached with the outdoor unit for details Pipe material and size Pipe material Phosphorus deoxidized copper seamless pipe TP2 for air conditioner Pipe size mm Liquid side side Recharge of refrigerant The refrigerant recharge shall be performed as specified in the installation instructions The adding procedure shall be aided with a measuring meter for a specified amount of supplemented refrigerant Requirement More or less refrigerant will cause compressor fault The mount of the added refrigerant shall be as specified in the instructions 51 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Conduct flared connection work to connect all refrigerant pipes e The connection of indoor unit pipes must use double spanners m e The installing torque shall be as given in the following table Connecting pipe 7 Double spanner Vacuum pumping With a vacuum pump create vacuum from the stop valve of the outdoor unit Emptying with refrigerant sealed in the outdoor unit is absolutely forbidden Open all
12. 6 CLOCK SET Te e 7 i D OC 8 gum 1 Setting Button Used to set temperature Setting ranges 16 C to 30 C 2 SWING Button If you press this button once auto swing will be activated If you press this button again the louver will fix in the p resent position 3 Power ON OFF Button Used for unit start and stop After power on the LCD of remote controller will display the previous operation state except for Commercial Air Conditioner CX G GG GG E od TIMER SLEEP and SWING state 4 Operation MODE Used to select operation mode Every time you press MODE button operation mode changes according to following sequence The function of code B X COOL DRY HEAT 5 HEALTH Button 6 CLOCK Button Used to set correct time T TIMER Button Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 FILTER Button Used to set up down function of filter 9 CODE Button Used to select Code A or B this manual is for code B 10 RESET Button Press this button by using a sharp article to resume the correct operation of the remote controller in case of need i e for example in case of malfunctions due to electromagnetic disturbance 11 LIGHT Button Used to light the control panel only for cabinet unit 12 LOCK Button Used to lock operation button and LCD display contents by pressing this button other buttons comes out of funct
13. 66 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 3 Temperature setting Press TEMP button A Every time the button is pressed temp setting increases 1degree If button is kept depressed temp setting will increase quickly Every time the button is pressed temp setting decreases 1degree If button is kept depressed temp setting will decrease quickly Set proper temperature 4 Adjust FAN button Press FAN button At each press fan speed changes as follows at lt ai antl ailli LOW MID HIGH AUTO Air conditioner will run at the selected fan speed 5 Unit stop Press ON OFF button unit stops COOL operation starts when room temp is higher than temp setting Ultra low air flow In HEAT mode warm air will blow out after a short period of time due to anti cold function On reaching temp setting 2 C unit will run in mild DRY mode Timer ON OFF Function Set clock correctly before starting TIMER operation Timer ON OFF Function 1 Unit start After unit starts select your desired operation mode Operation mode will be displayed on LCD 2 TIMER mode selection Press TIMER button on the remote controller to changeTIMER mode Every time the button is pressed display of TIMER mode changes as follows lt blank Gh TIMER ON TIMER OFF Then select TIMER mode as needed 3 Time setting Press time button Every time the butt
14. Refrigerant charging amount of outdoor system Additional refrigerant charging amount Total refrigerant charging amount of the refrigerating equipment kg Refrigerant charging amount of outdoor system Refrigerant charging amount when air conditioner leaves factory Additional refrigerant charging amount Additional refrigerant charging amount according to the site pipe length and pipe diameter 2 Calculate the minimum size of the room suitable for the indoor unit assembly m3 Calculate the concentration of refrigerant Total refrigerant charging amount of refrigerating equipment the minimum room size suitable for indoor unit assembly m3 Refrigerant concentration limit 0 3kg m3 2 Countermeasure when exceeding the concentration limit 1 Set an effective opening for yentilation and fresh air Cut an intake respectively on the upper and lower part of the door which areas are equivalent to 0 1596 grounding area or cut an intake in other part of the room 2 Reduce the total refrigerant charging amount of the refrigerating equipment Shorten the refrigerant pipe length Reduce the installation place distance between the outdoor unit and the indoor unit to shorten the refrigerant pipe length so that reduce the total refrigerant charging amount of the refrigerating equipment 3 Establish ventilation and fresh air system Establish a mechanical equipment for fresh air to keep the refrigerant concentration below the concentration
15. lt Z c 3 oO 02 D 7 Outdoor unit 3 5 o 5 vim ols 5 2 material of reduce noise crankcase heater power Net Shipping Refrigerant iquid as Connecting Method Bewe Logani aR 77 MAX Piping length p R407C 4200 99 52 liquid pipe 65g m X actual length 9 52 outdoor upper 30 outdoor lower 20 2 lt io 9 lt Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AU48NFIBJA AU48NFIBJA unction heating Total power input Max power input 3N 380 400V 50Hz Running Max Running current cooling 10 5A 13A heating 10 5 13A Start Current ARE olo ct 1 lt lt a x 2 Q c 5 lt PE e 2 Q Unit model color Compressor we Speed Heat exchanger Rowfnpnth MM 7 Outdoor unit 3 5 o 5 7 x x 9 5 o 12 Volume Accumulator Noise level material of reduce noise Weight Net Shipping kg Kg h Refrigerant Ghare EE NE crankcase heater power 12 2 a c 5 lt iquid 2952 a
16. 80 SP i E 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 Indoor side Install piping hole cover and seal it off with putty after installation Wall hole Thickness 60mm of wall 4 Drawing of pipe Section of wall hole Piping hole 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 the mark of hole for left rear piping which is marked on heat insulation materials a Insert the drain hose into the dent of heat insulation materials of indoor unit b Insert the indoor outdoor electric cord from backside of indoor unit and pull it out on the front side then connect them c 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 Heat insulation Piping material Pipe supporting plate Drain hose Indoor Outdoor Electric cable Fix with adhesive tape Indoor outdoor electric cord and drain hose must be bound with refrigerant piping by Protecting tape 45 n Haier Commercial
17. Current state is Fan OFF 2 Cool Dry mode TA gt 16 C high speed d Current state is Fan OFF TAx16 C low speed mode 2 Cool Dry mode TC 21 low speed 2 gt 37 low speed TA gt 32 C high speed urrent state is low d G Current state is low speed 815 C X TA 31 speed d d TC gt 50 C med speed gt 45 high speed med spee E TC 30 C fan off 40 C lt TC lt 44 med TC 15 fan off Current state is med speed speed Current state is med PR 4 gt 47 high speed 397 low speed speed 4 lt 40 low speed lt 15 high spee e el G Current state is high speed TC 30 fan off TC 22 low speed 41 C med speed gt 50 low speed Current state is high d low speed low speed speed 1 lt 40 lower fan off lt 36 lower fan off TC lt 39 Current state is Fan motor gt 42 lower fan startup gt 38 lower fan startup 1 med speed control 1 Startup period in heating T TA220 low speed 1 Startup period in heating ae TA 20 C high speed 1 Startup period in heating High speed 2 Running state in High speed 2 Running state in heating h atihg 2 Running state in heating TA gt 17 C oe TA gt 17 running units capacity lt running units c
18. EE sv spots ED GREEN ER ours 5 wav R323 bow zT m s 7 INS OUTS 7 EMI 2 i ix 4TuF 1C305F gt Ci nuns IN ED it o 2m o vs 1 305 u n Facia 1C304C open ses zs Number im VT n Da ur 1 2 4 5 5 1 8 82 Haief 8 6 Dip switch and the ports on PCB functions AU242FHBIA ports on PCB Commercial Air Conditioner Ports Ports name Wiring method CN1 IPM OUT IPM output control line CN2 IPM POWER To 4 way 15V power source CN3 310V GND To 310V DC power source CN4 Fan motor port To fan motor CN5 SERIAL 857 detecting serial port CN6 Four way valve port To four way valve CN7 Live line of electric heater To live line Neutral line of electric heater CN9 Live line of power source To live line CN10 neutral line source CN11 Live line of power source To live line CN12 Earthing line To earthing line CN13 Communication port To communication line CN14 Sensorpoit Including defrosting discharging ambient air return evaporating temp sensors CN15 EEV port To EEV CN16 High pressure switch port To high pressure switch CN19 SERIAL 846 detecting serial port no used CN22 Spray valve port To spray valve CN23 Oxygen generator port oxygen generator o
19. conductivity and make condition necessary replacement yes Check mainboard and make necessary replacement 111 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 IPM power module protecti 9 flashes of outdoor LED302 light Possible causes 1 Short circuit o on r overcurrent 2 Control supply is less than 13 5V 3 Module is hot with a temperature higher than 145 C Are connectors in light contact yes Is 9 pin connector between IPM or in poor contact current board in poor aN S Check and reconnect yes and low voltage board short circuit Replace cable Check point and pins of 201 power source board 1 output voltage of rectifier acceptable 530VDC at Y Replace rectifiter 380V Check point CN12 mainboard Is four way supply voltage less than 13 5V normal value 13 5 16 5VDC EYES Replace power board if the compressor is normal Is compressor winding resistance yes Is power module too hot acceptable Is it stuck Is silica gel well distributed on radiation fins Is current up to protection yes limit of power module 1 15 voltage of supply circuit too low overloaded 2 15 heat exchanger or indoor fan motor
20. rate of indoor unit group 1 1 1 0 0 9 780 90 100 110 120 air wet bulb temperature condition 2 Capacity modification under outdoor air wet bu 12 12 1 1 1 0 1 0 0 9 0 8 0 8 0 7 15 20 24 0 6 0 5 indoor air dry bulb temperature 15 10 25 0 5 10 outdoor air wet bulb temperature 4 Fall of refrigerant pipe of indoor and outdoor unit capacity compensation value of pipe length Length of refrigerant pipe corresponding length L m 5 Capacity compensation suitable Outdoor unit enjeA B o bp N H ho the max value of ha hb hc L lo the max value of la Ib Ic 126 for total capability of indoor unit group heating prepueys 20 40 60 80 100 120 135 Total capacity of indoor unit group Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com
21. OUT g eo 560 T p INE O e a T E 0 P Aca ra D wal i iw s i E m sid N dA i 1 IA 1 es lows J m f n dos lt e ph de AE 4 4 1 U e pe m 0 EN E P33 Pop sms s 5 gt Eu Part pa D E D xis Lj our pt E s HPRE t n OF 00 6 gus el ele E 36 Py XN e 1 im FRIFEPEPPE xS ps P37 ab ges 0 IE Wu ENS z k a on BT don MF E is 95 ucro y T T TT TT oet VSS m 3510078 9 m T D P40 PIE ioc 7 Jom as 5 U z a 0 T sm 7 He T Og pa 59581 TT 5 T FUP P42 x 10K 6 59554 ro or P E pem 595R EJ PST joD o imi m rh E l7 mx dud PAS 1 7 405182 D P46 m cu Ly E wi en won 0 imi Rs 0 i oh gt d LT 5 3 ERR HEATER 2400305 m AC2 IN AC_COMP CoP u w ACIN ict d Bes D emu z CUPS i 5 R A E Urs i Qim 5 T a 5 5 s m 5 Qr E hs a e TH
22. Reconnect Use shielded wire Shield layer should be grounded at single point wiring Separately Eliminate interference Replace indoor PCB no Replace indoor PCB 102 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 2 Sensor failure no Is sensor properly connected econnect yes Are resistance and BEA no temperature characteristics change sensor sensor normal yes check if PCB is defective if yes replace 3 EEPROM failure outdoor displays 10 start Is EEPROM in mainboard no inversely connected or in poor contact re set Y replace PCB 4 Over current protection 6 flashes of outdoor ALARM lamp fault readout 6 Is supply voltage good Is no wire specification correct Modify power supply circuit yes Are connectors in no good condition Check and reconnect yes 1 Check if the compressor current Is filter board in good yes Change PCB is over protection value 30A condition yes no 1 Is output voltage among V Change filter board W balanced no Replace power module 2 Disconnect all terminals Is resistance between P and N P and U V W N and U V W acceptable Check 1 Is a valve in system close yes ni 2 2 piping clogged 3 Is system overfed is there air
23. 0 8 20 0 6 The value be set according to the selection of jump wiring selection of jump wiring L M H a 12e 10e 8e INV command frequency decimalism e g 120 stands for 120HZ INV receiving frequency decimalism e g 84 stands for 84HZ Quantity of indoor units connected decimalism e g 6 stands for 6 indoor units No oi amp Back up running TS sensor 1 TE sensor 1 This function is preset and not available Back up running TA sensor 1 mid section temp sensor _1 This function is preset and not available Back up running PD sensor 1 PS sensor 1 This function is preset and not available Display compensation of capacity class 4 class 4 6 class 6 After the start up of system is over the frequency of compressor has gotten the target frequency confirmed by the request of indoor unit capacity for 5 minutes and then the unit will modulate the capacity Note class 4 and class 6 can be selected Class 4 is that the capacity class whose range is from 4 classes higher to 3 classes lower than the target frequency Class 6 is that the capacity class whose range is from 6 classes higher to 4 classes lower than the target frequency For the unit without pressure sensors there is no this function Display U shows that indefinite capacity is chose Display d shows that definite capacity is chose indoor total capacity can t be
24. Communication cable 2x 0 75 1 25mm 1 220 230 50 0 10 0 10 Unit model color 072 white ASO92FCBHA white CROSSx1 CROSSx1 1250 1050 900 Heat exchanger about 0 15 about 0 15 cooling 6 7 heating 43 60 Dimension mm 795 197 265 795 197 265 LxWxH mm 880x315x330 880x315x330 mm PVC 114 164 Phone type infrared Refrigerant control Noiselevel dB A kg kg Indoor unit m 36 33 29 7 6 10 6 37 35 30 7 6 10 6 R407C Refrigerant Type mm mm Connecting method Function 12 7 Flared AS122FCBHA Cooling Heating 12000 17000 3500 5000 1 6 3 x 0 75mm 2x 0 75 1 25mm 1 220 230 50 0 15 0 15 0 15 AS142FCBHA white CROSSx1 r min 1250 1050 900 W Ml Heat exchanger i otal area Temp scope Dimension External 928x197x265 mm 1025 309 330 mm dB A 44 41 38 kg kg 11 14 mm mm Co BTU h Dehumidifying capacity Power cable Communication cable Power source Running current Unit model color Fan x Number peed 1 e xm h D Q Q ze lt lt lt material diameter Controller type Refrigerant control Noise level et Shipping ype iquid Gas Connecting method Refrigerant TU V o 12 2 02 Q amp 2 0
25. EH 4 5 Taie 2 Fall den evo 5 eu T 27 ES E Tas ic IK IN n PMV B Inl NA noo E 1 a p zt mm We Ame T mr E 28 7 _ ms 3 E T dom Al i Mun 898 LL mom x cae gas E son PFC 19 ml ines de 0 E oo at 2 Lj eee 0 s f 0 E 4 1 NER Cu t m5 A 5 10 48 me i F RES q n e ere CT IN a 0 cus 2 i od zi al kii nre leni 104 15 1000 ju Tiv 4n 500r w os ele abe me acm OO ES s pus m n s rine nes CR DRE 80 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AU482FHBIA PCB circuit diagram 81 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AU48NFIBJA PCB circuit diagram
26. yes Is piping twisted or deformed no Adjust and maintain Do outdoor fan and PMV work properly during cooling cycle Do indoor fan and EEV work properly during heating cycle Repair fan motor and EEV 5 If the filter and heat exchanger are dirty yes es Cleaning If refrigerant circuit is leak or lack of refrigerant yes Check leakage point evacuate and recharge 107 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 9 Fault in built in overload protection of compressor Normally closed open in the event of a fault Fault readout 8 8 flashes of ALARM light z no Is CN14 in power supply reconnect drive properly connected yes Check power power 15 overload protector no source board to see if the 10th pin of CN13 open circuit p has low level If not replace it yes 1 Is resistance of Replace compressor compressor winding acceptable yes If compressor current and discharge pressure are acceptable the problem is not related to refrigeration system Check if piping is clogged ambient temperature is high or heat exchanger is soiled 10 Current transducer failure Display 7 ALARM lamp flashes 7 times check if the wiring i
27. 00 display after 3 minutes this function is preset 7 Clean abnormal function CL this function is preset 8 Outdoor PMV 1fully open close function fully open FF fully close 00 9 Outdoor PMV2 fully open close function fully open FF fully close 00 10 Indoor PMV fully open close function fully open FF 11 Outdoor rated setting F 3 0 7 Indoor communication state receiving normal 1 receiving abnormal 8 Display quantity of communicating indoor unit e g 6 shows that 6 indoor units are working 4 0 15 Indoor diagnosis code no diagnosis code this function is preset 5 0 15 Indoor new code 0 stands for 0 8 1 stands for 1HP 2 stands for 1 2 3 stands for 1 5HP 4 stands for 2HP 5 stands for 2 5HP 6 stands for 3HP 7 stands for 4HP Old code 1 stands for 1HP 7 stands for 7 6 0 15 Indoor required capacity decimalism indoor P CODE 7 0 15 Indoor PMV opening degree decimalism 8 0 15 Indoor saturation temperature decimalism 26 0 67 0 account according to outdoor suction pressure PS 9 1 16 Indoor sensor TA temperature decimalism 26 0 67 0 10 1 16 Indoor sensor TC2 temperature indoor gas pipe decimalism 26 0 100 0 11 1 16 Indoor sensor TC1 temperature indoor liquid pipe decimalism 26 0 100 0 12 1 16 Single cool trial run this function is preset 13 1 16 Single heat trial run this function is preset Combination control with outdoor switch
28. Use shielede wires for telecommunication between wire controller and indoor unit indoor unit and outdoor unit Ground the shield on one side Otherwise misoperation because of noise may occur e Signal wire is self provided by user 5 Replace the upper cover of wire controller Be careful not to hold down the wiring Hint 1 Power supply switch and signal wire should be prepaired by the user 2 Don t touch PCB with hand 63 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 7 2 Infrared controller YR H71 Please press the botton CODE to choose the program of code B There have some function buttons in the H MRV system units that they are not use The detailed information is as follow About Health functon There is NEGATIVE ION function on the WALL MOUNTED type and CABINET type indoor units the detailed information of this function please see the following There is OXYGEN GENERATING function on this H MRV system it s of an optional part system The system can generate fresh oxygen to the room space by installing this part system About Health functon If the unit has the function of both NEGATIVE ION and OXYGEN GENERATING After set the right function mode press health button remote controller displays now the indoor unit power lamp turns form orange color to green color oxygen pump or negative ion generator starts up to apply oxygen or negative ion to indoor P
29. k 2c n R338 das ms 2 1 Y DS 1C206 4 2 564 yagi 7302 2304 10309 c Das DR 7303 d ou INA QP302 X Lio KPN 22h2a D_ODITENB A x NP 3906 D E 9 NC D 5 359 8 x aoc V m i mo Vin Y 12 i en REDI 6 14 16 INC p our R326 Fl IC3o3B 2 amp LR Maor R327 n 25 Page NC m BN Vee 14 1C303A 4 P46 ADI4 4 2 1225 E PATIADIS TU m 3 co HLL po 5 Do 1 R313 P07 3 P2 1 ji c 22 B DC m M 74HCIA 14 C313 2 CNW 4n pesk 2 3 a 1 nb s mm 2 E Ti 321 22 TAA ba 1 Rais Pos A 1304F E E env XR 1 i sai ER 103 b 2 mi upon ice m R317 ca 2 18 Lous ict 18 N1 1 1 106 1 4n 1c304D mi Det ours B 87 i w4 ourat ilc mi Tal A R319 1 305 T 2 e 7 OUT7 6 6 Kb Lese oure pur TEER Oisu 106 1 m IDDE CLAMP Facia v 1c305B nais 4 CN202 T 1 E 1 16055 em E R HESS E zimi M 2
30. limit normal ventilation When can not ventilate the normally please set an alarm apparatus linked with the mechanical ventilation equipment 35 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 12 Electric cautions Power supply specs Connecting wire dal Circuit P Communication Wired controller mode ircui ower Power source wire wire breaker cable core section section area 1PH 220 230V 2 AU242FHBIA 30A 5mm 50Hz 1PH 220 230V 2 AUA82FIBIA 50A 10mm 50Hz 3PH 380 400 2 1 0 1 5mm AU48NFIBJA 20A 4mm 50Hz AE FCBKA 3 1 220 230V AS FCBHA 15A 1 5mm 3 0 75mm AB FCBIA 3 Remark 1 Must not connect the power cable and communication wire incorrectly Forbidden to connect the power cable and communication wire with one muti core cable and they must be wired separately keep proper distance between them to ensure the air conditioner run normally 2 Communication wires among indoor units should be hand in hand type and decrease the branch also the shielded layer should be connected together and be earthed on one point 3 All indoor communication wires will be connected to the communication bus wire 2 core C1 and C2 are non polar 4 Because the indoor unit adopts EEV control method when a sudden power off occurs the EEV maybe keep some angle If ind
31. material shall be overlapped Insulating material SAY SAXON AY Connecting pipe in site Insulating material arranged in site Insulating material Thickness Over 10mm 4 Pipe connection of the outdoor unit Referring to the installation diagram in page 4 connect the indoor unit outdoor unit branch pipe and electronic expansion valve together by using the pipe connection method and welding method 32 n Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 9 Test of leakage after wiring work is finished After connection of the refrigerant pipes carry out leakage test In this test ressurize to the pipes as shown in the below figure by using nitrogen tank lose the valves of the gas side and liquid side totally The nitrogen may enter the cycle system of the outdoor unit so that before pressurizing the valve rods must be fastened Both the gas side and liquid side For each of the refrigerant system pressurize from the discharge valve of gas side in procedure When doing leakage test it is absolutely forbidden to use oxygen flammable gas and poisonous gas The indoor unit expansion valve must be open Low pressure High pressure Indoor side Outdoor side Gas discharging Valve 1 tss Vacuum pump meme Outdoor unit 2 way valve Liquid side 5 vacuuming of the pipes and indoor unit using vacuum pump to vacuums it i
32. over 130 k Display o1 stands for HP Display 02 stands for HP Display H1 shows that can be connected with central communication TD sensor data decimalism TA sensor data decimalism TS sensor data decimalism TE sensor data decimalism Mid section of coil pipe sensor data decimalism Pd sensor data display corresponding saturation temperature Ps sensor data display corresponding saturation temperature Opening degree of outdoor PMV1 decimalism Opening degree of outdoor PMV2 decialism 2 way valve switched on SV ON 1 no switched Outdoor running current decimalism 88 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 11 Outdoor fan mode 1 low speed 2 med speed 3 high speed 12 Temperature sensor ON display ON _1 OFF 13 Four way valve switched 1 Four way valve not switched on OFF __ 14 Running mode selection cooling heating 2 0 1 Dispatch line check cooling CC this function is preset 2 Dispatch line check heating HH this function is preset 3 Cool trial run this function is preset 4 Heat trial run _ this function is preset 5 Swing trial run _F this function is preset 6 Indoor unit uniform start stop run 11 stop
33. 2524 Wire gt board 22 Wire Use VW 1 0 5 to 1 0 mm thick PVC tube as the insulation tube Check the Layout of the Drain Pipe and Connection Wires 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 Installation check e s power supply voltage required Is water completely drained to outdoors e Are power wire and connection wires between indoor and outdoor units correctly connected e 5 any gas leaked from the pipe connectors e Are series numbers of the terminals on the indoor and outdoor units corresponding to each other 1 the connection section of the auxiliary pipe insulated Is the indoor unit fixed firmly e 15 noise big 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 e Does the location for installation conform to requirements Winding up with Protective Plastic Tape The connection pipes drain 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
34. 5 Do set the unit in the place where destructive gas such as sulfuric acid gas or pungent gas thinner and gasoline concentrates and retains 6 Place strong enough to support the unit 7 No expensive articles such as television and piano below indoor unit 8 Enough space for maintenance 9 Place more than 1m away from television and radio to avoid disturbing television and radio 10 Easy for maintenance 2 5m Over 38 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 2 Installation Preparation 1 Position of ceiling opening between unit and suspending bolt front view of unit Overlap between ceiling and ornament panel shall be 25mm x UM P 4 Ceiling Ornament panel Suspending bolts Indoor unit 570mm Ceiling opening 650mm Ornament panel 700mm 320mm 50mm Distance between suspending bolts 535mm Indoor unit 570mm Ceiling opening 650mm Ornament panel 700mm 2 Prepare all piping refrigerant water drainage and wires connection wire of remote controller indoor unit connection wires to the indoor unit before installation in order to connect indoor unit immediately after installation 3 Install a suspending bolt To support the unit weight anchor bolt should be used in the case the existing ceiling For new ceiling use flush in typ
35. 53 9 5 5kgf m 9 52 DAS Q 5kefm 29 4 3 0kef m 15 88 78 4 8 0kefm 98 0 10 0kefm 31 a Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 3 Method of cutting and flaring pipe A Di Diameter of pipe Anny Cutting and flaring pipe mi If using pipe cutter the burs must be removed Flarer f 6 35mm 1 4 After inserting flaring machine flare pipe nozzle to be bell mouthed 9 52mm 3 8 0 8 1 5 When using branch pipes do installation work in the directions shown e 12 70mm 1 22 26 in the below figures 27 15 88mm 3 4 ET UU uw gu Slant Break Crack Partial Too outside lt gt When using branch pipe please install it as shown in the following Fig f Flow direction Flow direction Or beau anne of refrigerant of refrigerant Wrong Correct Wrong Correct Vertical direction Horizontal direction t IT CO Cutting part of branch pipe Connecting direction Cut the connection part off centrally and remove the burs For the cutting of branch pipes it is necessary to use micro cutter Heating insulation of pipes Insulation of branch pipe part after connection the attached heat insulation materials of the branch pipe with the site pipes bind them properly Insulating material Band properly with tape Arranged in site Insulating material Arranged in site When joint connecting no gap shall be left in the joint the insulating 456 Branch pipe
36. Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Other direction piping Cut away with a nipper 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 5 Fixing the indoor unit body Hang surely the unit body onto the upper notches of the mounting plate Move the body from side to verify its secure fixing In order to fix the body onto the mounting plate hold up the body aslant from the underside and then put it down perpendicularly Putty Electric wiring When connecting the cord before installing the indoor unit e Insert the cord from the back side of the unit then pull it out on the front side e Loosen the screws and insert the cord ends fully into terminal block then tighten the screws Pull the cord slightly to make sure the cords have been properly inserted and tightened e After the cord connection never fail to fasten the connected cord with the wiring cover Note when connecting the cord confirm the terminal number of indoor and outdoor units carefully wiring is not correct proper operation can not be carried out and will cause defect CAUTION After connecting the piping check the joints for gas leakage with gas leakage detec
37. Black BL Blue Reactor BR Brown R Red x d ied Rectifier Rectifier OR Orange 25A 600V 50A 600V Y G Yellow Green AUA82FIBIA Wiring diagram B RR 0010577019 us Y Current CN18 IPM B PN Detecor Sy F 101102103 en E af 1 P 5405 5804 nis a Capacitor D 01 5802 Control Board B El SW03 H CN13 CN15 H High Voltage Control CN9 3 2101 Td OD OO CM CNS CN6 CNT CNW 9 CN14CN24 OS CEO un Fuse 250VAC 13 154 M Fan fou 1 Capacitor es B VES CN 0 CNS CM CN3 mw cm AC Motor A g PR qu MC R BEN E 8 E Tom CE st Sv Valve B 8 j Jr 4 Way Unloadi ed Valve Oxygen CN2 L B Heater Generator B Earthi NW acting g ale a c D Electrolytic w Capacitor M w FSN H F E T Electrolytic Capacitor N C it 7 RP 1 Parts in dashed i Y p 3 frame are optional To indoor uint Power Supply a 2 B Black AC Contactor R Red R R R ifi Reactor W White Resistance ias Y G Yellow Green 95 Haief Commercial Air Conditioner AU48NFIBJA wiring diagram Fan capacitor 1 CN211 2 1 2 3 4 5
38. CN23 at will unit code setting The unit with remote controller is matched with receive display CN25 BR 1 Gelling concealed type CN11 must be short s Indoor control board E 2 Buet connected with float switch and 8 w pump molor g 3 Cassette type connected with float switch FUSE pump motor and swing molor T3 15A 250VAC 4 abinet 11 must be short connected 12 RO With a jump wire connected with swing motor by 1 The unit with wired controller equipped with wired receive display p controller can make remote operation on wired choice of remote B controller with remote controller such as YR H39 RL7 RS 1 controller type Short connect CN15 CN17 together with mp c NR Wire other parts are the same as remote control unit Setting method with electronic expansion valve outside iss p ewe choice of wired CE RREN Bp mum o expansion valve communication and the electronic controller type R R xpansion valve box MP3 or MP2 control indoor CN23 is disconnected CN25 is connected with electronic fan effigerant ow RN Setting method with built in electronic expansion valve Capacite 7 M ewe M M CN23 is short connected with a jump wire is earthing connected with electronic expansion valve and ung melee ening moter a
39. M L an motor output v Combination of wave cranny radiation fin and copper pipe Capillary EEV 660x570x260 hipping 710x675x360 mon 63600 Connectonmemos fed Heat exchanger 3 3 3 3 x x JE gt x x 3 3 3 3 Refrigerant control method Dimension LxWxH x AX 5 gp Weight unit panel Piping Commercial Air Conditioner ombination of wave cranny radiation fin and copper Capillary EEV 660x570x260 710x675x360 700x700x60 740x735x105 19 0 2 8 23 5 4 8 6 35 1 4 12 7 1 2 flared 17 27 remote controller Model AU242FHBIA AU482FIBIA AU48NFIBJA Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA tem model AEO72FCBKA AEO92FCBKA 11000 1 220 230 50 2 R407C R407C Fan Airflow H M L starting mothod Combination of wave cranny radiation fin and copper Refrigerant control method 74 225 450 18 aus 635 Piping i Controller type wired controller or remote controller ewm eating capacity i639 Dehumidiyngcapady IN V Hz 1PH Z20V 230V R407C Number Fan Air flow H M L 700 550 400 starting mothod Relay control Relay control Combination of wave cranny radia
40. OFF appears in TIMER OFF display area and timer off time press SLEEP button again to cancel sleep function the sleep symbol disappears In cooling dehumidifying mode One hour after sleeping operation start the temp is 1C higher than the setting one After another hour the temp rises 1C and then run continuously for another 6hrs and then close The actual temp is higher than the setting one which is to prevent from being too cool to your sleep In heating mode One hour after start up the temp decrease 2 lower than the setting one After another hour decrease by more 2 C The temperature will automatically rise by 1C after another 3hrs operation and then automatically close after 3hrs continuous operation The actral temperature is lower than the setting one which is to prevent from being too hot to your sleep Note In AUTO mode unit will run in SLEEP function according to the operation mode After setting SLEEP function it is forbidden to calibrate clock If the set sleep time does not reach 8 hours the unit will stop operation automatically after set time is complete Set TIMER OFF function first then set SLEEP and the sleep set is performance set TIMER ON function first the sleep function can only be set before TIMER ON if set theSLEEP function first the TIMER function can not be set After setting sleep function not allowed to adjust the clock Can t use the remote controller operate the AC If so please cancel the sle
41. broken 3 15 ambient temperature too high Is system 1 15 output voltage among U V and W balanced 2 Disconnect all terminals resistance between P and N P and U V W N and U V W acceptable Replace power module yes Is there any damaged component in power module driver yes Check low voltage and make necessary replacement no 112 Replace power module driving board Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 6 Discharging temperature protection 11 flashes of outdoor LED302 When is temperature protection activated discharge line is above 115 C Are stop valves in gas pipe and liquid pipe of outdoor unit open totally yes Temperature of no Open the stop valve Valve 4 Mainboard Does EEV work properly during heating cycle Check 1 Connector 2 Winding resistance 3 no Repair outdoor EEV Is actual discharging temperature detected by thermometer too high no ls discharging temperature sensor in good condition no yes yes cooling cycle Does indoor fan work properly during heating cycle Does outdoor fan work properly during replace PCB no Check fan motor and capacitor Is filter or heat exchanger dirty pro cleaning Measure balance pressure and running
42. can be used for two indoor units please confirm the MP2 quantity according to the actual indoor units MP3 can be used for three indoor units please confirm the MP3 quantity according to the actual indoor units Installation method is below which only takes MP3 as an example Please pay attention that the gas pipes installation is as the same as the condition without MP2 MP3 indoor liquid pipe indoor A outdoor liquid pipe NES indoor B indoor C MP3 indoor B2 Y shape manifold pipe indoor C2 Piping length and drop between units 26 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 1 When connected with 8 units indoor units refer to lt admissible combination examples gt 2 Total length I1 12 2 13 4 14 4 15 4 lt 100m 3 Max piping length 11 12 13 15 lt 70m 4 piping length between the indoor unit and the first branch pipe lt 30m 5 Max drop between outdoor unit and indoor unit H 30m indoor above outdoor H lt 20m indoor below outdoor 6 Max drop between the two indoor units h lt 10m 7 Expansion valve is less than 15m to its corresponding indoor unit 8 Only wall mounted types are connected with expa
43. distance between the remote controller and the receiver should be max 7m and there should be no obstacle between them Do not throw the remote controller prevent it from being damaged e When operating the remote controller in an area where electronically controlled lights are installed or wireless handsets are used please move closer to the indoor unit as the function of the remote controller might be affected by signals emitted by the above mentioned equipments Battery loading Battery loading Batteries are fitted as follows Remove the battery compartment lid Slightly press and disengage the battery compartment lid marked with S and then hold the remote controller by the upper section and then remove the battery compartment lid by pressing in the direction of the arrow as shown in the figure above Loading the battery Ensure that batteries are correctly placed in the compartment as required for positive and negative terminals Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Replacing the battery compartment lid The battery compartment lid is reinstalled in the reverse sequence Display review Press the button to see if batteries are properly fitted If no display appears refit the batteries Confirmation indicator If no indication is displayed after press ON OFF button reload the batteries If the remote controller does not operate as designed after fitting new batteries of the
44. ifthe button is continuously pressed The Read button Pressing of this button will result insimultaneous displayof dehumidifying and transmission icons black water drop and pyramid as shown inthe figure The Lock button Thisbutton canbe pressed after newcode transmissions set Whenthe button is pressedthe icon Off appearson theLCD thenexcept the Reading button all the buttons will be shielded with the receiver codelocked If the buttonis pressed again icon Off disappearsand the lock on function is inactivatedfor all the other buttons Machine number button No 1to No 6 unit Ifthe button 1 pressed a machine serial button is displayed with a flashing frequency of 1Hz Set machine number 7 8 press button 6 and within 2seconds press button 1 then loose them simultaneously 7 will display in the screen which stands for selecting unit 7 And then press button set you can set unit 7 Then press READ to confirm if the unit number is right With the same method set unit No 8 Machine number set button This button can be set when machine number flashes the LCD Machine number flashing will beset and transmitted if the buttonis pressed the machine number stops flashing and a transmissionicon the black pyramid shownin the figure will appearon the LCD e The Reset button Inset a pointedtool 2 2mm into the hole of the Reset buttonEvery press of the tool will reset theexisting setting and three seconds later initial oper
45. lack 1 there air in system 1 there leak pressure to see if the refrigerant is too much or yes Conduct leak test Evacuate and recharge no Is piping twisted or deformed Is piping yes Adjustment or replacement clogged with weld When is high if SV2 by pass circuit can work normally b Check coil and valve body of electromagnetic valve 113 L Replace TD sensor Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 7 High pressure overhigh protection 12 flashes of outdoor LED302 When is high pressure switch activated Pressure is above 3 0 MPa Are connectors of CN318 pressure switch in good condition Is high pressure switch activated Is pressure value detected by pressure gage above 3MPa Are stop valves in suction no pipe and liquid pipe of Open stop valve outdoor unit open YES Renai Is piping twisted or deformed or NO Check and reconnect ne replace PCB yes NO Replace high pressure switch if outdoor fan motor work properly during cooling cycle and if indoor fan motor and indoor EEV work properly during heating cycle 5 5 Is filter or heat exchanger dirty Is system overfed Is there air system Is rea
46. wireless remote controller Readout 8 Description Transmission error between wire controller and indoor unit mainboard Check if the wire controller is properly connected to A B and C Reconnect of indoor unit Check if the voltage between and is Replace indoor 12VDC unit mainboard Yes Check if the voltage between C and Replace the wire Note CN15 and CN17 of AE series should be short connected changes regularly controller T Models with wired controller Models with wireless remote controller Readout N A 10 flashes Description PG failure in the fan of indoor unit Check if the fan is properly connected to the mainboard Yes Check if PIN 3 and 1 of CN2 color models or CN8 regular models are up to DC 5V Check if there is pulse output Replace the indoor unit from PIN2 and 1 of CN2 or mainboard CN8 Replace the fan 118 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 Models with wired controller Models with wireless remote controller Readout E9 4 flashes of Timer light Description Transmission error with outdoor unit an alarm will be given 4 minutes after the appliance is started Check if there is repetition in the indoor unit address IDs Check if the transmission line is short circuit or open circuit if the shield wires at both ends of transmission line are earthed properl
47. 736 5392 5071 4770 4488 4225 3978 3747 ES 25 25 27 28 2 30 3 2 3 34 35 36 37 38 39 40 EFIE 42 3531 43 44 7 45 46 47 4 49 50 51 52 53 54 55 56 57 58 59 6 62 EE 421 7 402 1 PA 333 5 318 4 304 1 290 5 277 6 265 3 253 6 EA 79 18 17 16 15 14 13 12 a 5 212 3 203 2 194 5 186 3 178 4 170 9 163 7 155 9 150 4 144 2 138 3 132 7 127 3 122 1 117 2 112 5 108 103 8 99 68 10 3328 3138 2960 2793 2636 2489 2351 2221 2099 1984 1877 1775 1680 1590 1506 1426 1351 1280 1214 1151 1092 1036 983 2 933 4 886 4 P oF 722 8 687 3 a 5536 Commercial Air Conditioner 25 10 0 3 25 50 3700 3 Model AU242FHBIA AU482FIBIA AU48NFIBJA 25 10 0 3 25 50 3700 3 6 95 6 68 5 43 559 5 73 5 52 5 32 5 12 4 93 458 4 42 4 26 4 11 3 97 3 83 3 57 3 45 3 33 3 22 3 11 3 11 281 2 72 2 63 2 54 2 49 2 38 223 2 16 2 09 2 03 1 96 1 85 1 79 1 73 1 68 1 63 1 58 1 54 1 49 1 45 A w N D Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 25 23 2 5 25 23 2 5 25 50 4200 3 25 50 4200 3
48. FIBJA Set Clock correctly before starting Timer operation You can let unit start or stop automatically at following time Before you wake up in the morning or get back from outside or after you fall asleep at night TIMER ON OFF 1 After unit start select your desired operation mode WODE EAN UNE Operation mode will be displayed on LCD Power indicator lights up TEMP _ HEALTH 2 TIMER mode selection Press TIMER button to change TIMER mode Every time the amp LI button is pressed display 1 changes as follows ON EN blank 9 00 edo Select your desired TIMER mode ON OFF 3 Timer setting Press TIME Wbutton A Every time the button is pressed time increases 10min If button is kept depressed time will change quickly Every time the button is pressed time decreases 10min If button is kept depressed time will change quickly Time will be shown on LCD It can be adjusted within 24hours 4 Confirming your setting After setting correct time press SET button to confirm ON or OFF stops flashing Time displayed Unit starts or stops at x hour x min ON or OFF Timer mode indicator lights up To cancel TIMER mode Just press TIMER button several times until TIMER mode disappears According to the seting timing open close sequence can realize first open then colse the unit or first close then op
49. Haier Commercial Air Conditioning SERVICE MANUAL Models Haier AU242FHBIA AU482FIBIA AU48NFIBJA And its indoor units Features New cassette unit with 700 700 panel and new unit body New PCB for cassette indoor unit and outdoor unit much stabler Mutiple indoor unit types cassette type ceiling concealed type and wall mounted type Free combination total indoor capacity can be 50 130 of outdoor capacity Multiple control types infrared control wired control Individual operation for every indoor uint energy saving New refrigerant control device MP2A MP3A Auto restart function Long piping and high drop between indoor and outdoor Refrigerant 407 Manual code SYJS 017 05REV 0 Edition 2005 11 22 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA CONTENTS SONS 2 1 Description of products amp features 3 PETRO N T 6 Safety precaution rrn 14 4 Net dimensio Ro D PA e don 16 5 Installation instructions 21 6 Parts and 53 7 Controller functions 21 8 Electrical control 71 9 Wiring 95 10 Failure code troubles
50. High pressure Switch Yes 12 O P Resumable abnormal L U Yes After there are voltage malfunction for 3 Voltage over low protection 13 L U times 1 hour the testing board will O U Yes display the last abnormal reason P X X Voltage over high protection 14 P OU Need powered off and restart Compressor overheat Yes 15 Resumable protection Recover the parameter set no 16 P LA Need reset and restart when out of factory Clear the malfunction no Need reset and restart 17 PCT memory Need reset 18 P rE no Need reset and restart Radiator temperature sensor No use abnormal temporarily 100 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 10 2 Indoor failure code A Wired control type indoor unit the dip switch of wired controller is 1 and 3 at ON 2 and 4 at OFF Failure code Failure description EO Float switch abnormal E1 Outdoor unit failure E2 Abnormal mode operation Liquid pipe temperature sensor failure E4 Gas pipe temperature sensor failure E5 Repeated indoor unit number E5 flashes for a while and then turn to E9 7 Communication abnormal with EEV box E8 Communication abnormal between wired controller and indoor PCB E9 Communication abnormal between indoor and outdoor EB pre set not Water temperature sensor abnormal available B Infrared control type indoor unit
51. IBJA sensor name defrosting temp sensor pipe temp sensor discharging temp sensor suction temp sensor ambiet temp sensor ABO92FCBIA 0010450699 pipe temp sensor AB142FCBIA AB182FCBIA 0010451327 AE072FCBKA AE092FCBKA AE122FCBKA AE142FCBKA eee AE182FCBKA AE242FCBKA AS072FCBHA AS122FCBHA AS142FCBHA AS182FCBHA AF092FCBHA 001A3900059 AF122FCBHA ambiet temp sensor pipe temp sensor liquid pipe temp sensor coil temp sensor 92 sub 00143800082 00143800093 00143800093 00143800093 00143800096 00143800093 00143800093 00143800096 00143800093 001A3800082 001A3900004 001A3900003 001A3900004 001A3900004 001A3900003 001A3900004 sensor number characteristic R25 10KQ 3 25 50 3700 3 R25 10KQ 3 25 50 3700 3 R25 10KQ 3 25 50 3700 3 R25 10KQ 3 25 50 3700 3 R80 50KQ 3 25 80 4450 3 R25 10KQ 3 25 50 3700 3 R25 10KQ 3 25 50 3700 4 R80 50KQ 3 25 80 4450 3 25 10 3 25 50 3700 4 25 10 0 3 25 50 3700 3 25 10 3 25 50 3700 3 25 23 2 5 25 50 4200 3 R25 10K0 3 B25 50 3700K 3 R25 10K0 3 25 50 3700 3 1 R25 10K0 3 B25 50 3700K 3 2 R25 23K0 2 5 B25 50 4200K 3 Haief 80 50 3 80 50 3 25 80 4450 3 25 80 4450 3 UC Rnom KQ Rnom KQ 11600 536 6 10860 511 1 10170 pu 9529 8932 8375 7856 7372 6920 6498 6104 5
52. IG Remote controller PT ull alll LO UT MI HIG A Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA eto Unit runs at the speed displayed on LCD In HEAT mode warm air will blow out after a short period of time due to cold draft prevention function In DRY mode when room temp becomes 2 C higher than temp setting unit will run intermitte ntly at LOW speed regardless of FAN setting 5 Unit stop Press ON OFF button Only time and room temp remains on LCD indicators go out Vertical flap closes automatically Hints Wire controller can memorize each operation status When starting it next time just press ON OFF button and unit will run in previous status Auto running During the Auto running mode air conditioning running and can auto select the cooling heating fan mode according to the room temperature Fan running The AC only have air supply running no cooling and heating running at the condition AC can t have auto air supply running and can t display the setting temperature value on the LCD During the heating running after start the AC in order to prevent cooled air AC can stop for a while before send heat air During the dehumification running when the room temp setting temp not setting condition according to the air speed 57 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48N
53. PMV1 fully open closed function Outdoor PMV1 compelled fully open or close in 2 minutes set SW01 3 SW02 9 press SW04 for more than 2 seconds confirmation in 2 minutes 7 segment LED of base board will display all the time cancel the control software will recover PMV to normal open degree after 2 minutes after indoor software receives the signal of fully open from outdoor PMV will fully open only in 2 minutes 90 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Outdoor PMV2 fully open closed function Outdoor PMV2 compelled fully open or close in 2 minutes set SW01 3 SWO02 10 press SW04 for more than 2 seconds confirmation in 2 minutes 7 segment LED of base board will display all the time cancel the control software will recover PMV to normal open degree after 2 minutes after indoor software receives the signal of fully open from outdoor PMV will fully open only in 2 minutes 2 Specification for SW03 The two switches of SW03 should be ON or OFF at the same time 91 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 9 Sensor characteristic model sensor number outdoor ambient temp sensor suction temp sensor AUA82FIBIA defrosting temp sensor mid condenser temp sensor compressor discharging temp sensor AU48NF
54. The airing direction shall be from bottom to top 47 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Ceiling concealed unit Installation space The indoor unit shall be installed at locations where cold and hot air could evenly circulated The following locations should be avoided Places with rich salt seaside area Places with plenty of gas sulfides mainly in warm spring areas where the copper tube and braze weld is easy to corrosion Locations with much oil including mechanical oil and steam Locations using organic solvents Places where there are machines generating HF electromagnetic waves Positions adjacent to door or window in contact with high humidity external air Easy to generate dew Locations frequently using special aerosols The following points should be taken care of 1 Select suitable places the outlet air can be sent to the entire room and convenient to lay out the connection pipe connection wire and the drainage pipe to outdoor 2 The ceiling structure must be strong enough to support the unit weight 3 The connecting pipe drain pipe and connection wire shall be able to go though the building wall to connect between the indoor and outdoor units 4 The connecting pipe between the indoor and outdoor units as well as the drain pipe shall be as short as possible See Figure 1 5 If its necessary to adjust the filling amount of the refrigerant please refer to the in
55. ain pipe work Slant downward Heat insulation work insulation work No No gaps in the joint of heat insulation material in the No gaps in the joint of heat insulation material of heat insulation material Wiring ono control Choose the proper wire and cord wire power cord Set every set switch Should be complied with control wiring system diagram Close all the gas liquid valves Vacuum Vacuumdrying Should the vacuum pump that can reach 200Pa Should the vacuum pump that can reach 200Pa vacuity Additional Ss Write down the additional amount the outdoor unit body and record table Test run adjustment Do test run to indoor unit one by one to verify if there is wrong pipes Training of use and Explain to user simultaneously provide all the documents maintenance The above work order is general knowledge they may be changed to be complied with the specific work site 5 7 Attentive matters of safety Before installing do read this Attentive matters of safety carefully to guarantee the proper installation The below attentive matters are divided into warning and note two parts When the wrong installation occur it is very possible death and severe injury and other serious accidents will happen For those items are listed in warning part But even the items listed note part can also cause serious accidents Above all both the two parts are very important contents related to safe
56. al direction 2 Installation place The box should be installed where the place a b do have vibrations easy to piping with the indoor and the outdoor unit and the distance from the box to the indoor unit should not exceed a certain value do not have a heat or steam source nearby should be sunless and be dry should well ventilated and rainproof do not have a strict noise restriction because when working the box may make some noise 24 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 4 MP2A MP3A Installation Requirement 1 Cautions 1 1 The place should be strong enough to support this equipment no vibrantion 1 2 The place where is convenient to install the indoor unit outdoor unit and the refrigerant pipe and the length of the pipe is in the permitted range 1 3 No heat source and gas source nearby 1 4 The place has enough space for installation and maintenance 1 5 Don t installation in the place in the state of high temperature and high humidity for a long time 1 6 The place with good ventilation no direct sunshine and rain 1 7 Don t install the unit near the bedroom because of the refrigerant flow noise Please refer to the cautions and warnings in the operation manual about the other safety cautions 2 Installation Method 2 1 MP2A MP3A can be installed on the horizontal ceiling or the vertical wall by adjusting the fixing holder The
57. all health function of the indoor unit being fully canceled oxygen pump stopped CAUTION When the temperature of the outdoor unit is lower thaK4 oxygen pump is automatically stopped if press health button just then oxygen pump could not start up But if the air condi tioner has the negative ion function simultaneous when press the health button negative ion function could still be operated When the temperature of the outdoor unit is higher thanG oxygen pump could automatically resume to oxygen make function For H MRV wired type indoor unit the wired controller can be matched with the remote controller YR H71 to realize the remote control function Left picture is a wired remote controller which can be used on Series wired control units The remote controller can be purchased extrally E E Remote controlller Wire remote controlller Remote controlller is an accessory to be ordered extrally 4 S gt frc x Wired remote Controller using method 1 Use one wired remote controller See fig 1 2 Also can buy a remote controller extrally realize wired remote control remote control dual control modes 3 When the remote controller can be used on series wired remote controller units than please press the botton CODE to choose the program of code
58. alth display Calibration of clock When turning on the unit for the first time the clock should be calibrated The method of calibration is 1 Press Clock button the Clock display AM PM will flash 2 Press A orv to adjust time For each press the time will increase or decrease 1 minute If depressing the button the time will increase or decrease rapidly 3 After confirming the time press Set button AM or PM will stop flashing the clock will begin to work 56 Recommendations Use COOL in summer Use HEAT in winter Use DRY in spring autumn and in damp climate 1 Unit start Press ON OFF button unit starts Previous operation status appears on display Not Timer setting Power indicator lights up 2 Select operation mode Press MODE button For each press operation mode changes as follows AUTO COOL DRY HEAT FAN Unit will run in operation mode displayed on LCD Stop display at your desired mode 3 Select temp setting Press TEMP button A Every time the button is pressed temp setting increases 1 C If button is kept depressed temp setting will increase quickly WEvery time the button is pressed temp setting decreases 1 C If button is kept depressed temp setting will decrease quickly Unit will start running to reach the temp setting on LCD 4 Fan speed selection Press FAN button For each press fan speed changes as follows Wired controller H
59. and terminals of electrolytic capacitor Is output voltage _ Replace rectifiter of rectifier acceptable 310VDC at 220V Check point CN12 mainboard Is four way supply voltage less than 5 Replace power board 13 5V normal value 13 5 16 5VDC if the compressor is normal Is compressor winding resistance acceptable Is it stuck pe Is power module too hot Is current up to protection Is silica gel well distributed on radiation fins 1 Is voltage of supply circuit too low yes 12 15 heat exchanger or indoor fan motor broken limit of power module 3 15 ambient temperature too high Is system overloaded 1 15 output voltage among V W balanced 2 Disconnect all terminals Is resistance between P and N P and U V W N and U V W acceptable Replace power module yes Check mainboard and make necessary replacement 104 Haief Commercial Air Conditioner Model AU242FHBIA 6 Discharging temperature protection 11 flashes of outdoor ALARM light fault readout 11 When is temperature protection activated Temperature of discharge line is above 115 C Are stop valves in gas pipe and liquid no pipe of outdoor unit open totally Open the stop valve Does EEV work properly during heating cycle Ch
60. apacity x 1 running units capacity 1HP low speed will be ON low speed will be ON 1HP low speed will be and OFF in turns d OFF int an in turns ON and OFF in turns Other condition running units capacity gt Other condition TE 7 C high speed EE 1 low speed TE 7 high speed TE gt 10 C low speed 17 C gt gt 2 15 low TE gt 10 C low speed 3 TE gt 14 C lower fan off spee TE lt 12 lower fan startup 14 C gt 10 med speed TA lt 9 C high speed 2 EEV In COOL DRY DEFROST state EEV will open fully with 480 pulse 71 Haier Commercial Air Conditioner Model AU242FHBIA control AU482FIBIA AU48NFIBJA In heating mode EEV will be adjusted due to the overheating value SH TS TC 1 Adjust range according to the compressor frequency min open angle of EEV will be different high frequency 120 med frequency 110 low frequency 90 the max open angle 470 350 2 Overheating modification according to the discharging temperature modify the overheating value when Td gt 100 C overheating value will decrease 2 at the standard overheating value when Td X 70 C overheating value will add 2 at the standard overheating value 4 way valve secure operation 1 Secure operation conditions of 4 way valve After the outdoor receives the heating signal from indoor unit if the 4 way valve is not electrified before th
61. as indoor unit control refrigerant flow itself YIG indoor fan motor Attentions The water temp sensor CN9 and indoor negative ion generator or temp sensor CN24 are unuseful now The fourth bit high voltage accumulator 2 of 4 position dial switch is used to choose the different speed of indoor fan under heating mode ON means that the speed of indoor can be choosed Lp resumable heat from middle and low OFF means that the speed of protector indoor fan can be choosed from high middle and low L electronic 80 C 10A 250VAC auxiliary heater outdoor expansion valve a communication power supply FUSE and communication TISA 250VAC NIS shot come or indoor power NOTE Must connect electronic expansion valve box ER indoor tan motor asapees reay 1PH 220 230V 50Hz Power and communication from corresponding one off heat protector Ome serisi communicatonpot RLS door tan motor Hg speed relay indoor wiring sequence must correspond with 105 C 10A 250VAC al a the label respectively other wise will cause PCB of indoor and electronic expansion valve LEDS dca mmmng md RIS pump motor reay box not work and damaged only applicable for unit with oning motor relay auxiliary electric heater a es cate gue 3 podia sati heater ray B Black BL Blue BR Brown R Red W White Y G Yellow Green AS 2FCBHA wiring d
62. ation mode will appear on the LCD 3 Testof remotecontroller ie No 3unit e Press Unit3 button the number 3 flashes with a frequency of 1Hz Press the machine number set button the selected unit number will be set and transmitted tothe receiver of theunit Press the Read button and the selectedunit starts read the set machine number If machinenumber of selected indoor unit is correctly displayed Flash number of the indoor unit power indicator implies machine number setting of machine number is successful or vice versa When setting is completed press the Lock button fornew number remote controller only and the icon Lock on appears on the LCD thenthe machine number of the indoorunit islocked Usually machine numbers do not need to be locked 4 Aslight soundmay be produced bythe indoorunit whenthe signal from the remote controller is received Note Donot set machine numbers for more than one indoor unit before a lapse of 20 seconds after completionof setting of machine number of a indoor unit 70 Haief 8 Electrical Control Functions 8 1 Outdoor control principle Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA No Item AU242FHBIA AU482FIBIA AU48NFIBJA 1 Startup period in cooling Siart iod i lina Start iod i i Startu eriod cooling Startup period in coolin mode high b P P 9 mode high mode 2 Cool Dry mode
63. d no replace PCB yes Is pressure value detected by pressure gage above 3MPa Are stop valves in suction no pipe and liquid pipe of Open stop valve outdoor unit open yes 15 piping twisted or deformed Repair or Replace high side pressure switch yes yes if outdoor fan motor work properly during cooling cycle and if indoor fan motor and indoor EEV work properly during heating cycle 5 Is filter or heat exchanger dirty DO Check fan motor or indoor EEV cleaning no T Is system overfed Is there air in system Is reading of discharging pipe pressure gauge oscillatory yes Y Evacuate and recharge 106 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 Low pressure too low protection Low pressure is lower than 0 05MPa for 3 minutes or lower than 0 05MPa for 30 seconds during halt time condition Are connectors of pressure switch in good no Check and reconnect yes Is low side pressure switch activated no Replace PCB yes Is pressure valve detected by pressure gauge lower than 0 05MPa Replace low pressure switch If outdoor stop valves of gas pipe and liquid pipe are open totally Open stop valve
64. d set Pr 00 as 1 Press quit out of data editing mode Note Data of the chip is very important the improper modification will cause the main parts damaged such as compressor So before modification please contact with us 10 After quitting from data editing mode operation board will display P which will flash After 3 minutes it will display b P 160 At this time pressing the to reset the program 11 After reset power off the outdoor For 1 2 minutes the outdoor release all the electricity plug the communication wire between outdoor and indoor to the original position the modification is over ee 87 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 8 AU482FIBHA function specification of SWO01 SW02 SW04 SW05 SW06 SW07 Table 1 SWO01 SWO02 Display of 7 segments LED LD1 LD2 LD3 0 0 FFF shows capability overloading if capability overloading function is chose Outdoor diagnosis code when without diagnosis code display 1 Outdoor running mode cooling C heating H defrosting J 2 Defrosting area set display 1 shows that is set at 12 display 2 shows that L is set at 10 display 3 shows that L is set at 8 When the following condition is available the unit enters into defrosting running TE defrosting temp ambient temp lt Note TA lt OC
65. ding of discharging pipe pressure gauge oscillatory yes Evacuate and recharge DO Check fan motor or indoor EEV cleaning 114 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 Low pressure too low protection Outdoor LED flashes 15 times Low pressure is lower than 0 05MPa for 3 minutes or lower than 0 05MPa for 30 seconds during halt time in good condition Are connectors of CN317pressure switch Check and reconnect yes Is low side pressure switch activated no Replace PCB yes Is pressure valve detected by pressure gauge lower than 0 05MPa Replace low pressure switch If outdoor stop valves of gas pipe and liquid pipe are open totally Open stop valve yes Is piping twisted or deformed Adjust and maintain no Do outdoor fan and PMV work properly during cooling cycle Do indoor fan and EEV work properly during heating cycle Repair fan motor and EEV 5 If the filter and heat exchanger are dirty 5 es Cleaning If refrigerant circuit is leak or lack of refrigerant Check leakage point evacuate and recharge 115 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 10 5 H MRV indoor un
66. door Outdoor Unit unit Liquid pipe 2 way valve Flare connection 41 n Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Installation for wall mounted unit Please read these Safety Precautions first then accurately execute the installation work The precautionary points indicated herein are divided under two headings AWARNING and those points which are related to the strong possibility of an installation done in error resulting in death or serious injury are listed in the AWARNING section However there is also a possibility of serious consequences in relationship to the points listed in the_LACAUTION section as well In either case important safety related information is indicated so by all means properly observe all that is mentioned After completing the installation along with confirming that no abnormalities were seen from the operation tests please explain operating methods as well as maintenance methods to the user ofthis equipment based on the owner s manual Moreover ask the customer to keep this sheet together with the owner s manual WARNING Please entrust installation to either the company which sold you the equipment or to a professional contractor Defects from improper installations can be the cause of water leakage electric shocks and fires Execute the installation accurately based on following the installation manual Again improper installations can resul
67. e will cause PCB of indoor and electronic expansion valve box not work and damaged 0010577029 About the PCB setting In the diagram gas pipe temp sensor liquid pipe temp sensor room temp sensor indoor fan motor float switch pump motor swing motor are necessary parts Wired controller remote receiver electronic expansion valve are parts matched with the model combined usage negative ion generator or high voltage accumulator are optional parts for health and comfort combined usage Wired controller and remote receiver only can be chosen one of type at will The setting of SW01 SW02 and 54 03 1 The former three bits of SWO1 are used to set unit number which are operated by the installer on field 2 The fourth bit of 54 01 is used to choose different indoor fan speed in heating mode ON means that fan speed can be set as middle and low level OFF means that fan speed can be set as high middle and low level 3 The first bit of SWO2 and SWO3 is used to choose wired control type or remote control type ON means that the unit with wired controller other parts are as the same as remote control unit And OFF is remote controller The unit with wired controller can make remote operation on wired controller with remote controller such as YR H71 4 The second bit of SWO2 is used to choose built in outside electronic expansion valve setting ON reans built in type CNG is connected with electronic e
68. e bolt built in type bolt or parts pretared in the field Before going on installing adjust the distance to ceiling Anchor bolt Long nut or thread 28 Suspending bilt M10 22227 Ceiling Installation Example Note All the above mentioned parts shall be prepared in feild the diameter of suspending bolt is M10 3 Installation of indoor unit In case of no ceiling Install unit temporarily Put suspending bracket on the suspending bolt to hang the unit up Be sure to use nut and washer at both end of the breaket to secure firmly After installation on the ceiling 1 Adjust unit to its right position Refer to preparation for installation 1 2 Check that unit is horizontal Water pump and floating switch is installed inside indoor unit check four corners of the unit for its lever using horizontal comparator or PVC tube with water If unit is tilting against the direction of water drainage problem may occur on floating water leakage 39 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA In the case of existing ceiling Nut Prepare in feild 1 Install unit temporarily Washer Prepared in feild Put suspending bracket on the suspending bolt to hang the unit up Be sure to use nut and washer at both end of the bracket to secure it firmly 2 Adjust the height and position of the unit gt Suspending bolts 3 Proceed with procedure 4 of In the case of no ceilin
69. e compressor starts up the unit will enter the 4 way valve secure operation After defrosting is over the unit will enter the 4 way valve secure operation 2 4 way valve secure operation control In heating mode After the outdoor receives the startup signal from indoor unit the compressor will start up fan motor shutoff EEV close and when the frequency rises up to 50Hz for 10 seconds 4 way valve will reverse meanwhile fan motor will enter the target speed EEV enters the open angle of soft startup and the unit enters soft startup period In defrosting when the defrost condition is met the compressor frequency will decrease to 50Hz 4 way valve will reverse meanwhile fan motor will enter the target speed and the unit enters soft startup period 3 4 way valve control in OFF state 4 way valve will close after compressor stops for 30 minutes Defrosting control 1 Enter condition when compressor runs for 45 minutes in al heating mode by checking TE and TA if the below conditions can 1 Enter condition when compressor runs for 45 minutes in all in heating mode by checking TE and TA if the below conditions can be met for continuous 5 minutes the unit be met for will enter defrosting operation lt X TA herein continuous 5 TA lt 0 C C 0 8 TAZO C C 0 6 m minutes the unit will setas 12 L 10 8 CH according to the M enter defro
70. e horizontal ceiling horizontal ceiling CN CN EN H SN 1 N 44 2 NS N C n J i 5 LO LO ad 214 232 B lt N N a E ecd Y 160 5 173 5 566 19 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Installation on the vertical wall adjust the installation position by fixing holder 7 ped vertical wall 2 7 137 081 7 116 80 6 oo tO 173 5 232 160 5 LO c E J _ e 20 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 Installation Instructions 5 1 Piping dimension chart mm inh mm inch 5 2 Y shape manifold pipe model FQG B120 912 7 gas side 99 52 heat preservation material 29 52 12 7 lt liquid side gt heat preservation material Dimension is the out diameter connecting to the tubing 21 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA FQG B180 15 9 12 7 9 0 9 5 15 9 19 0 S o 19 0 15 9 22 2 heat preservation materia 9 5 12 7 15 9 a 12 7 ele 9 5 liquid pipe 9 5 46 4 f
71. e power board CN310 the driving port for electronic expansion valve CN311 testing port for the radiator temperature No used at present CN312 testing port for the coil temperature Tt CN313 testing port for the defrosting temperature 314 testing port for the outdoor ambient temperature Ta CN315 testing port for the suction temperature Ts CN316 testing port for the discharging temperature Td CN317 port for the signal of compressor overheat protection initially but now for low pressure switch CN318 port for the signal of high low pressure protection but now only for high pressure switch 101 110 j is 110 j Le ET o ol CN306 a mo CN306 CN30 CN306 gt z 80 5 8 1 e 50 C R JP301 o 10 e z z t to 2 E 8 g M H 2 2 2 CN308 3 t2 9 20 a amp w E 5 E a 2 a 2 1 2 e i i e 0 0 CN311 CN313 CN315 CN317 CN310 CN311 CN313 CN3iS CN317 CN310 CN313 CN315 CN317 CN310 n oL ILLE EE IEEE oL JL 1 0 e CN318 CN314 CN316 CN318 CN314 CN316 CN318 CN314 CN316 Control board 1 Control board 2 Control board 3 Totally there are 3 types of control board because they have different appearance you will distinguish them much easier Control board 1 is the earliest edit
72. e unit number is from 1 to 8 1 Number setting for wired control type unit 1 2 3 4 Indoor unit No 0 0 0 0 1 1 0 0 0 2 0 1 0 0 3 1 1 0 0 4 0 0 1 0 5 1 0 1 0 6 0 1 1 0 7 1 1 1 0 8 Note 1 Dip switch at ON position shows 0 2 If there are not only the infrared control type unit also the wired control type unit in the whole system please set the wired control type unit number firstly and then record the numbers then set the infrared control type unit number to avoid the repeated unit number 2 Number setting for infrared control type unit Please refer to the manual of address setting controller ASC 02 5 14 The dip switch setting when out of factory AE FCBKA Unit No 3 3 fan speeds wired control type exterior EEV That is SW01 1 ON SW01 2 SW01 3 SW01 4 OFF SW02 1 SW02 2 OFF SW03 1 ON SW03 2 ON AB FCBIA Unit No 3 3 fan speeds infrared control type built in EEV That is SW01 1 SW01 2 SW01 3 ON SW01 4 OFF SW02 1 OFF SW02 2 ON SW03 1 OFF SW03 2 ON When installation the installer should adjust the setting according to the actual condition The ports functions for AB and AE unit some are optional port Corresponding parts port Corresponding parts CN4 Negative ion generator or high voltage CN5 Gas liquid pipe temp sensor accumulator CN6 EEV CN7 Pump motor CN10 Indoor motor CN11 F
73. eck 1 Connector 2 Winding resistance 3 Repair outdoor EEV Valve 4 Mainboard yes Is actual discharging temperature detected no by thermometer too high Is discharging temperature sensor in good condition yes Does indoor fan work properly during heating replace PCB cycle Does outdoor fan work properly during no cooling cycle Check fan motor and capacitor yes yes Is filter or heat exchanger dirty cleaning po Measure balance pressure and running pressure to see if the refrigerant is too much or lack Is there air in system Is there a leak m es Is piping twisted or deformed Is piping LSU clogged with weld yes Conduct leak test Evacuate and recharge Adjustment or replacement no When TD is high is refrigerant injection circuit in good condition Is injection capillary in good condition no 1 Check coil and valve body of electromagnetic valve 2 Check injection capillary 105 AU482FIBIA AU48NFIBJA no Replace TD sensor Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 7 High pressure overhigh protection 13 flashes of outdoor alarm lamp When high pressure switch is activated Pressure is above 3 0 MPa Are connectors of CN16 pressure switch in good condition Check and reconnect yes Is high pressure switch activate
74. ef Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AU48NFIBJA malfunction code LED display on Am If sent to Malfunction description Code the regulating Remarks indoor unit board Normal 0 Normal Yes Defrosting temperature Yes 1 4 Resumable sensor abnormal Ambient temperature sensor 2 Ei Yes Resumable abnormal Suction temperature sensor 3 Yes Resumable abnormal Discharging temperature 4 2 Yes Resumable sensor abnormal Coil temperature sensor 5 E5 Yes Resumable abnormal Yes After there are current malfunction for 3 times in 1 hour the testing board will Over current protection 6 display the last abnormal reason Need powered off and restart Yes After trouble shooting need powered off Current sensor abnormal 7 C T and restart Yes After there are current malfunction for 3 Overload protection 8 P OL no times in 1 hour the testing board will Yes display the last abnormal reason P X X IPM protection 9 P no Need powered off and restart Read EEPROM value no 10 P EE Need reset and restart wrongly OD Yes After there are current malfunction for 3 Discharging temperature 41 times half an hour the testing board over high abnormal P OD will display the last abnormal reason P X X Need powered off and restart
75. emperature and the ambient temperature then add all the capacity code of the running indoor unit 2 Divide the outdoor capacity into 13 capacity classes due to the frequency every capacity class is corresponding with the different indoor capacity code modify the relative indoor capacity code due to the different ambient temperature 3 Compressor will confirm its target frequency according to the sum of indoor capacity code Cooling target frequency will be confirmed due to the indoor running horse power and the outdoor ambient temperature F C1 P C2 C3 T 35 C4 Herein 1 22 C2 160 C3 64 C4 4200 Heating target frequency will be confirmed due to the indoor running horse power and the outdoor ambient temperature F C1 P C2 C3 7 T C4 C5 C6 TZ Herein C1 16 C2 160 C3 32 C4 4500 C5 300 C6 45 74 Haief Commercial Air Conditioner Model AU242FHBIA AUA482FIBIA AU48NFIBJA 8 2 Indoor electric control functions No Control item AE FCBKA AS FCBHA AB FCBIA EEV control In cooling mode the adjustment by the over heating SH TC1 gas pipe TC2 liquid pipe 1 Adjust range min angle 60 65 max angle 470 350 data will take EEPROM as standard 2 Overheat modification according to the discharging temperature modify the overheat state if Td gt 100 the overheat value will add 2 degree at the base of standard degree 3 Open modification when EEV is at min ang
76. emperature to 23 degree and switch off the temperature compensation will be 1 degree if you set the temperature to 22 degree and switch off the temperature compensation will be 2 degree and so on the max compensation can be 8 degree 16 degree if you want to cancel the compensation adjust the temperature back to 24 degree Read the temperature compensation value Infrared control type change to cooling mode the set temperature is 30 degree in high speed Press SWING SLEEP 7 times within 5 seconds the running LED will flash as the current temp compensation value Infrared control type change to heating mode the set temperature is 16 degree in high speed Press SWING SLEEP 7 times within 5 seconds the running LED will flash as the current temp compensation value 8 4 Unit debugging 1 Confirm indoor unit quantity After the unit is electrified you can check the indoor unit quantity by the outdoor dip switch or the testing board The display quantity must be in accordance with the actual quantity If not please check if there is repeated unit No or if the dip switch is broken and if the communication wire is connected correctly 2 Confirm indoor EEV FAQ 2 1 The EEV communication wire is not in accordance with the indoor unit If all the indoors are running the operation will be normal when the only one indoor unit is running and it can not cool while the EEV of the unit not running opens 2 2 The live wire a
77. en the unit Hints e Wire 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 e Wire remote controller or remote controller can memorize each working condition Next time open the unit only need to press the ON OFF key the AC can work according to last time working condition Timing Sleeping and Swing mode not included e From Timing close to timing open can setting sleep mode Please close health function first before setting Timer then you can do the TIMER ON operation Please do not use the health function when in TIMER ON state 58 n Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA MODE SWING OFF 1 PM IC UL ON OFF o X TIMER ON OFF 1 After unit start select your desired operation mode Operation mode will be displayed on LCD Power indicator lights up 2 Press TIMER button to change TIMER mode Every time the button is pressed display changes as follows ON ON gt OFF blank OFF ON t OFF Selec 3 Time setting for TIMER ON Press TIME button A Every time the button is pressed time increases 10min lf button is kept depressed time will change quickly w Every time the button is pressed time decreases 10min If button is kept depressed time will change quickly Time wil
78. ent discharge Incorrect pipe use may cause water leaking Earthing 15 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 4 Net dimension AU242FHBHA Lu 948 Power wiring terminal 840 70 ke i 55 Y n i i 1 340 380 184 580 184 AU48 70 1250 340 Screw Hole 4xM 10 16 a Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AB Cassette unit overlaped distance between the ceiling and the panel 25mm nit dimen ension 700mm panel dimension 570mm indoor u 650mm ceiling opening dim 535mm between suspension poles x 570mm indoor unit dimension 650mm ceiling opening dimension 700mm panel dimension AE Ceiling concealed unit Le ol FR A 25 zs mI 122 Haier Commercial Air Conditioner AS series Model AU242FHBIA AU482FIBIA AU48NFIBJA model a b C AS072FCBHA AS092FCBHA 795 AS122FCBHA 265 197 AS142FCBHA AS182FCBHA 928 18 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Dimensions for MP2A MP3A Installation on th
79. ep function first After setting sleep function can t set the timing function TEMP HEALTH CLOCK SET TIMER SLEEP FILTER RESET _ S SLEEP RUN BEGINS SLEEP RUN STOPS SETTING T SHUT DOWN about 6 hrs SETTING T SHUT DOWN SLEEP RUN BEGINS SLEEP RUN STOPS Heat mode Cooling mode 60 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Auto restart function to be applied for a necessary situation After the auto restart function is set if power failure suddenly occurs while the air conditioner is working it will resume the previous working state when the power is supplied again Setting Method When the remote controller is on excluding timer mode and fan mode press the SLEEP button on the remote controller 10 times within 5 seconds and after the buzzer rings 4 times the air conditioner will enter the state of auto restart function Cancel Method Press the Sleeping button on the remote controller 10 times within 5 seconds and after the buzzer rings 2 timer the power failure compensation mode will be cancelled Notes When a power failure suddenly occurs during the air conditioner is working after the power failure compensation is set if the air conditioner will not be used for a long time please cut off the power supply to prevent its operation from being resumed after the power is supplied again or press the Switch On Off bu
80. er 30 degree indoor fan speed will turn into low speed from stop when liquid pipe temp is over 35 degree indoor motor will enter the set speed take the data in EEPROM as standard 75 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 3 Temperature compensation adjustment only for indoor unit with new PCB AB FCBIA For infrared control type unit the temperature compensation can be adjusted But for wired control type unit there is no temperature compensation Set the EEPROM by SWING or SLEEP button For example Infrared control in heating mode press ON OFF button to switch on the unit Take the 24 degree set temperature as the base point press SWING SLEEP within 5 seconds it will sound 2 times the unit will enter the heating temperature compensation mode at this time if you set the temperature to 25 degree and switch off the temperature compensation will be 1 degree if you set the temperature to 26 degree and switch off the temperature compensation will be 2 degree and so on the max compensation can be 6 degree 30 degree if you want to cancel the compensation adjust the temperature back to 24 degree Infrared control in cooling mode press ON OFF button to switch on the unit Take the 24 degree set temperature as the base point press SWING SLEEP within 5 seconds the unit will enter the cooling temperature compensation mode at this time if you set the t
81. er Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Check the sensor resistance with a multimeter R25 C 10K0N 3 B 25 50 3741K 70K Check if the sensor is properly connected to the mainboard Yes Replace the mainboard No Reconnect Replace the sensor 4 Models with wired controller Models with wireless remote controller Readout E5 6 flashes of Timer light Description Transmission error between indoor unit 846 chip and 808 chip What to do Replace the mainboard 5 Models with wired controller Models with wireless remote controller Readout E7 5 flashes of Timer light Description Transmission error with electronic expansion valve driver Check if the electric control of indoor unit and the electric control of expansion valve share the same supply and if live wire and null wire are properly connected Check if the internal wiring of indoor unit and expansion valve is properly done For AE FCBKA mainboard a jumper wire is used to select the function of wire controller Check if the mainboard is noticeably damaged and if the control panel works properly after Replace the replacement mainboard Check if the PCB CN23 of AC series is short connected Remove the short wire 117 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 6 Models with wired controller Models with
82. er Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 7 Testing board for AU48NFIBJA Press button mode the display will change over in the following sequence State Display Frequency Current output XX X Run Stop Defr Cool Heat Voltage on DC side U xxx Ambient temp 1 Discharging temp 2 Suction temp 3 XX Ny Defrosting temp 4 xx uu Ru LE Coil temp 5 XX aode NO ie Indoor unit quantity 6 xx EN 7 Note Please connect the wire on power Insert the testing board on the 302 of the outdoor PCB The part number is 0010451601 In addition we set a testing port CN303 which can be connected to the computer through another testing device part number 0010451800 The distributor can get the testing device and the testing software from us Testing procedure 1 After the unit powered off connect the wire of testing board to CN302 port and then pull down the communication wire between outdoor and indoor unit Check if the wiring is right If yes power on the outdoor unit On the operation panel of the testing board the relative data can be modified Press enter data editing mode Set data Pr 00 as 0 then data can be edited Press Enter to confirm The other data can be set according to the requirement like this way After all the data be modifie
83. erant tank and turn to the refrigerant charging procedure 5 10 Charging of refrigerant 1 Calculation of additional charging amount of refrigerant After finishing vacuuming work replace the vacuum pump with refrigerant tank and turn to the refrigerant additional charging procedure Calculation of additional charging amount of refrigerant Before the air conditioner leaving factory the refrigerant charging amount does not include the refrigerant in the site pipe part Calculate the refrigerant amount for the site pipe first then do the additional refrigerant charging work Refrigerant charging amount when air conditioner leaves factoryR407C 4200g Calculation method According to the liquid pipe dimension of site pipe and actual length to calculate the additional refrigerant charging amount Calculation formula Site refrigerant charging amount Length of liquid pipe x additional refrigerant charging amount m For example additional charging amount R kg L1x0 030kg m L2x0 065kg m 11 Total length of liquid pipe diameter 6 35mm L2 Total length of liquid pipe diameter 9 52mm 2 Charging of refrigerant Close all valves of outdoor unit and charge refrigerant from air discharge valve of gas side When can not charge the specified amount firstly open all the valves both liquid side and gas side of outdoor unit then switch the valve of gas side to close state a little Under this condition do cooling operation and charge refrigerant
84. es Table 2 function summary Method of set cancel Cool trial run Indoor trial run in cooling set mode the function is the SWO01 2 SWO2 03 press SWO4 for more same as trial run with remote controller the indoor unit which trials run fixes the temp difference as max temp and send it to outdoor the other control is similar with normal than 2 seconds after set of trial run success LD will always display C until the function is cancelled cancel in trial run state SW01 02 SWO2 03 press SW05 Heat trial run Indoor trial run heating mode the function is the same as trial run with remote controller the indoor unit which trials run fixes the temp difference as max set SWO01 2 SWO02 04 press SW04 for more than 4 seconds after set of trial run success LD will always display H until the function is cancelled cancel in trial run state 01 02 SWO02 03 press 89 Haier Commercial Air Conditioner Model AU242FHBIA AUA82FIBIA AU48NFIBJA mode the control is the same as swing trial run with remote controller temperature and send it to SWO05 outdoor the other control is similar with normal Swing trial run Indoor trial run in swing set SW01 02 SWO02 05 press SW04 for more than 2 seconds after set of trial run success LD will always display F until the function is cancelled cancel in trial ru
85. for dispersing heat be spare heat CN310 EEV port To outdoor electronic expansion valve CN311 Radiator temp sensor port To radiator temp sensor blank temporarily CN312 m e mid condenser temp sensor CN313 Defrosting temp sensor port To defrosting temp sensor CN314 Ambient temp sensor port To ambient temp sensor CN315 Suction temp sensor port To compressor suction temp sensor CN316 Discharging temp sensor port To discharging temp sensor CN317 Low pressure switch port To low pressure switch CN318 High pressure switch port To high pressure switch 84 B Haier Commercial Air Conditioner Model AU242FHBIA AUA482FIBIA AU48NFIBJA Below we will comment for the functions of some ports and some changes of PCB 0010451530 and 0010451531 1 Control Board 0010451530 Herein the control board we are concerned is the board without CPU Functions for every port are as follows 301 port for power supply connected with CN202 of the power board CN302 connected to testing board CN303 connected to the computer serial port through the testing device CN304 HBUS communication port CN305 the driving port for relay connected to CN203 of the power board CN306 the driving port for IPM connected to CN105 of the power board CN307 CN308 port for the heat emitting fan No used at present CN309 port for the main relay and for testing current connected to CN104 of th
86. from the discharge valve of gas side At this time adjust the valve of the refrigerant tank to make the refrigerant in Gas State when it is absorbed by system When refrigerant leakage making refrigerant lack in system occurs the intrinsic refrigerant of the system shall be recovered and recharge it according to specified amount 3 Opening of the refrigerant pipe Open all the valves of outdoor unit 34 a Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 11 Refrigerant MRV central air conditioner uses refrigerant R407C This refrigerant itself is innocuous non combustible safety refrigerant But then when arranging the air conditioner equipment it is necessary to take some steps to take recautions against in case of the indoors refrigerant leakage Such as the room size shall be taken into account to avoid making the concentration of the refrigerant not exceed the concentration limit and other relevant steps The concentration limit is the concentration that is not harmful to human body and can take emergency steps to treat the concentration of Freon Concentration limit of R407C 0 3kg m3 safety refrigerant Indoor unit In the room refrigerant leaks all the refrigerant leaks out 1 Sequence of refrigerant concentration affirmance Calculate the refrigerant concentration according to the following sequence 1 Calculate the total refrigerant charging amount of each of the refrigerating system kg
87. g Fasten double nuts c Insert Washer fixing pad prepared in feild secure the washer firmly leveler 4 Installation of water drainage pipe 1 Install water drainage pipe Pipe diameter shall be equal or larger than that of connecting pipe Pipe of polythene size 25mm 32mm Drainpipe should be short with a downward slope at least 1 100 to prevent air bag from forming If downward slope of drainpipe cannot be made lifting pipe shall be installed Keep a distance of 1 1 5m between suspending bolts to make water hose straight Use the drainage hose and clip provided with unit Insert water pipe into water plug until it reaches the white tape Tighten the clip until head of the screw is less than 4mm from hose Wind the drainage hose to the clip using seal pad for heat insulation e Insulate drainage hose in the room Large size seal pad Clip S oA Tape white Draingage hose 4mm below 5 Cautions for the water drainage lifting pipe e Installation height of water drainage lifting pipe shall be less than 280mm There should be a right angle with unit 300mm from unit Suspending bracket 280mm unter 500mm below 500mm below Clip 220mm 40 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA lt Note gt e The slope of water drainage hose shall be within 75mm make the dra
88. harging temp sensor Sv solenoid valve Low pressure switch HEAT heater High pressure switch W P water pump TSINK radiator temp sensor EEV Electronic expansion valve current transducer mid condenser temp sensor Color symbol Eymbol symbol B black BL blue R red w white y yellow G green Y G ellow green AT EV electronic M M fan capacitor M expansion valve Sok Builtin EEV type swing motor fan motor egoo N CN3 gas pipe temp sensor Eus CN8 liquid pipe temp sensor L E m El serial 00 5 CN16 float switch m B 1 Indoor control board cus Room temp sensor 24 5403 00 sw01 FUSE T3 15A 250VAC ue Gamesa unit code settin gt 9 cou Remote receiver CN19 CN20 CN14 CN1 CN4 Q Remote control type GG GE d R R Wired controller m pump motor TTE negative ion generator or high mes voltage accumulator communication WB R Y G electronic expansion valve Outside EEV t Wired control type power Supply communication indoor power Beene 1PH 220 230V 50Hz NOTE Must connect electronic expansion valve box power and communication from corresponding RBS indoor wiring sequence must correspond with WOW the label respectively other wis
89. he gradient of the condensate water pipe shall keep over 1 The condensate water pipe shall be thermal insulated When installing the ceiling Concealed type indoor unit the air return duct must be designed and installed as figure shown 48 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Building roof of installation KKKK air return box 21 0m use white motor plug 25 0m use red motor plug Air outlet grill Air supply There should b no obstacles within 1m unit IN air return J E air return box air supply air return Note When connecting the short ducts use the low static terminals which color is white The distance L from the air outlet of the duct to the air outlet of the sir conditioner shall be no more than 1 m NN NN NN NNNNNN N x CT 5 EN Suspending hook N Drain pipe Air out duct Air return duct Air return blind Transition duct Air distributary The sketch map of long duct Tie in of air distributary Note When connecting the long ducts use the middle static terminals which color is red The distance L from the air outlet of the duct to the air outlet of the sir conditioner shal be no more than 5 m M8 wide expansion bolt M8 suspender screw Air conditioner 8 wide lock washer 8 screw nu
90. he wiring of telephone interphone etc 1 Fix the receive display with screws 2 Place the panel onto the fixed frame pay attention on the selected place that the four claws must be placed into the Connecting wiring method of receiver corresponding four poles on the frame Refer the indoor unit wiring diagram Safety cautions see the electrical wiring part FTT CD Emergency switch Running lamp When the compressor working this lamp bright re lamp When the unit been setting Timing running this lamp bright o Power lamp After open the unit this lamp bright when the unite enter health running the lamp change from orange to blue lamp 5 Indoor temp sensor Test the room temperature 69 a Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 7 4 Address set controller ASC 02 1 Initialconnection of power supply Three seconds after the remote controller is connectedto power supply default symbol 1 ofthe unit model willbe displayed on the LCD and the new icon 7 shall be transmitted 2 Operationof remotecontroller e The SELECT Button n is displayed when the buttonis first pressedand the function for transmission of previously set code is set If the same button is pressed again the icon 77 appears for setting of new code The function icon will be switched for display
91. hooting 99 T LNOISS xe tin c 121 12 Performance CLIE Ve 124 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 1 DESCRIPTION OF PRODUCTS amp FEATURES 1 1 Products code explanation 14 2 1 2 Brief Introduction for T1 T2 Climate type T1 see table 1 Design number stands for design sequence frequency type inverter Product type A stands for heat pump type refrigerant is R22 B stands for heat pump type refrigerant is RA07C M stands for cool only type refrigerant is R22 N stands for cool only type refrigerant is RA07C Appearance code Product series F stands for MRV Applicable voltage 2 stands for 220 230V 50Hz 4 stands for 220V 60Hz stand for 380 400V 50Hz ooling Heating capacity 14 14000BTU h Product type stands for cassette type C stands for convertible type D stands for duct S stands for split type Q stands for chiller system E stands for ceiling concealed type stands for outdoor unit Air Conditioner 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 L C 43 C 7 C 35 C 7 C 52 C Electricity Heating 43 C 35 52 C 1 3 Operating Range of Air Conditioners Working tempera
92. iagram 0010573625 VIEW A TRANSFORMER Display 2 4 Wow VIEW A ELECTROMAGNETIC VALVE BOX GNI CN13 A CN10 X B CN1 N XB1 CN12 XB2 sw2 EMERGENCY SWITCH Control Board LIQUID PIPE TEMP swo1 SENSOR ON CN7 ROOM TEMP SENSOR CN8 GAS PIPE TEMP SENSOR CN5 ae M CN6 STEPPING MOTOR EARTHING R RED Note B BLACK 1 SW01 is the dip switch to set w B YiGG c2 W WHITE unit number BL BLUE BR BROWN 2 CN6 is a serial port for some Supply Earthing Communication Y G YELLOW GREEN device 1PH 220 230v 50Hz Wire Wire 97 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA MP3A wiring diagram MP3A wiring diagram 0010577068 FUSE T3 15A 250VAC 2 CN1 gt CN2 Control board D CN3 electronic 1 O D CN7 M eN g CN8 electronic CN6 g Kd CN9 expansion valve2 10 772 SERIAL CN10 CN11 OC CN12 c CN13 1615121312117 expansion valve1 B W BRB BR Y G L1 X N1 C1 L2 N2 C2 L3 N3 indoor 1 indoor 3 indoor 2 NOTE Power supply communication wire must be connected with the corresponding indoor units Wiring sequence must be B Black correspondent respectively L and N must not be connected reversel
93. ial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA WARNING e Installed electrical leaking circuit Nothing nobody is permitted to breaker placed on or stand on outdoor unit It easily cause electrical shock without The falling of goods and people may circuit breaker cause accidents 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 e Don t operate the air conditioner with installing the conditioner damp hands 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 Otherwise will be shocked room be sure to take every measure in order to prevent suffocation accident even in case of refrigerant leakage Only use correctly typed fuse May not use wire or any other materials When conditioner is removed or replacing fuse other wise may cause reinstalled dealer should be responsible faults or fire accidents 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 Use discharge pipe correctly to ensure earthing may cause shock effici
94. inage plug not to bear excessive force several water hoses join together of as per following procedures Slope below 1 100 Connection drainage hose with a T joint 100mm over Specifications of the selected drainage hoses shall meet the requirements for the unit running 6 Installation of Ornament Panel Install ornament panel on indoor unit 1 Check whether indoor unit is horizontal with leveler or polythene pipe filled with water and check that the dimension of the ceiling opening is correct Take off the lever gauge before installing the ornament panel 2 Fasten the screws to make the height difference between the two sides of indoor unit less than 5mm 3 Firstly fix it with screws temporarily 4 Fasten the two temporarily fixing screws and other two and tighten the four screws 5 Connect the wires of synchro motor 6 Connect the wire of signal 7 If no response of remote controller check whether the wiring is correct restart remote controller 10 seconds after shut off power supply Electric control box Panel limitation board installation 1 Install the panel board in the direction shown in the figure 2 The incorrect direction will result in water leakage meanwhile swing and signal receiving are displayed that cannot be connected Piping Connection Flare connection 3 way valve Gas pipe C b In
95. ine shall be connected with earth wire Power supply wire parameters HOBRN F 3 G 1 0 1 5 mm Signal wire parameters HOSRN F 2X 0 75 1 5 mm User shall self provide signal wire Note The singnal wire and connection wire should be provided for oneself The singnal wire must be shielded wire WARNING BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION FAILURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH EQUIPMENT MALFUNCTION AND OR PROPERTY DAMAGE BE SURE TO READ INSTALLATION MANUAL FOR INDOOR UNIT WITH THIS MANUAL Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 1 Accessories Confirm accessories shown below are attached in the bag with this Installation manual Accessories Delivered with Your Air Conditioner Please check if your unit is delivered with the following accessories Remote Batteries 4x25 screw Expansion Cement Piping hole Screw Plastic controller lt bushing steel nail cover supporting EE Qs plate 1 2 1 1 Indoor Unit 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 ai
96. ion because this board is rather big and it will cover the fixing screw which supports the electric control box also taken into consideration the convenient installation and service we modified and designed the Control board 2 Control board 2 is the second edition because there are electric parts on both sides of this board and 85 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA hard to be installed we designed the Control board 3 Contro board 3 the current edition Now the part number of control PCB is 0010451971 instead of 0010451530 The new control board 0010451971 also can be used as 0010451530 but the connector OH must be shorted 2 Power board 0010451531 There are two types of power board and they have the same dimensions but have the different voltage testing parts That is easy to distinguish The newly power board adopts the voltage sensor to test the voltage On the board there is a black square type voltage sensor The old board adopted the LM331 to test the voltage which is an inserted part IC with 8 feet However both the new or old power boards can match any of the control board but the CPU diagrams are different 3 Filter board 0010451536 Originally the electric control box has not any filter board In order to avoid the exterior interference and result in the bad communication the second edition current edition are all added the filter board 86 Hai
97. ion and lock state display appears if you press it again lock state will be no more active and lock state display will disappear 13 HOUR Adjustment Used to set clock and timer setting 14 HIGH SO Button Used to select HIGH or SOFT operation 15 SET Button Used to confirm TIMER and CLOCK settings when or cooling heating 16 FRESH Button Used to set fresh mode the unit will draw in fresh air 17 SLEEP Button The clock must be corrected before setting sleep function Used to set sleep mode 18 FAN Button Used to select fan speed LOW MID HIGH AUTO 19 TIMER OFF Display 20 TIMER Display 21 FILTER Display When the filter need be cleaned the sign will appear automatically 22 TEMPERATURE Display 23 AUTO SWING Display 24 HIGN SO Run Display 25 Code A display 26 SIGNAL SENDING Display 27 Code B display 28 Fresh Display 29 Auxiliary ELECTRICAL HEATING Display 30 HEALTH Display Displays when healthy run function is set 31 Operation MODE Display 32 SLEEP State Display 33 BATTERY Energy Display Notify the user when it is time to change the batteries 34 LOCK State Display Used to select TIMER mode TIMER ON TIMER 35 FAN SPEED Display LOW MID HIGH OFF Note if time of TIMER ON is the same as TIMER OFF AUTO 65 36 TIMER ON Display Remote Controller Operation e When in use direct signal transmission head to the receiver placed on the indoor unit e The
98. it troubleshooting 1 Models with wired controller Models with wireless remote controller Fault code readout EO 11 flashes of Timer light Fault description The float switch or pump motor is broken Check if the switch and pump connector are in good condition Check if the float switch Check if the pump is Check if the drain is open running system is clogged or the float switch is stuck Replace the indoor PC board Check if the Clean the drain system pump is power and reconnect the on switch Replace the pump 2 Models with wired controller Models with wireless remote controller Fault code readout E1 The Operation light flashes Check in accordance with the list of outdoor fault codes Fault description Failure in outdoor unit Faults in models with remote controller can be identified by the number of flashes made by fault indicator of outdoor unit Check in accordance with the list of fault codes 3 No Models with wired controller Models with wireless remote controller 1 Readout E3 1 flash of Timer light 2 Readout E4 2 flashes of Timer light 3 N A 3 flashes of Timer light 1 Description Liquid line temperature sensor Ti is short circuit or open circuit 2 Description Suction line temperature sensor TO is short circuit or open circuit 3 Description Ambient temperature sensor is short circuit or open circuit 116 Hai
99. l Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 7 3 Remote receiver RE 01 If the unit is wired type and it is without the remote receiver you can use the remote receiver RE 01 and the remote controller YR H71 to realize the remote function The installation of remote receiver and usage function are as follows The right figure is a remote controller which can be used on series remote control units and the matching remote control receiver 1 Remote control receiver using method Use remote controller control the remote control window of the remote s uor control receiver 2 Series remote controller units please press the botton CODE to choose the program of code B Remote receiver Remote controlller Installation of receive display Because of the temperature sensitive device do not install the receive display at straight sunlight place either in front of air outlet grill for it is effected greatly from cool air and heat air the receive display is at least 20mm distance to the air outlet grill Since there is light sensitive device which receives wireless remote signal so do not installed behind the window curtain or other obstacles in order not to obstruct the signal Must fix the remote control wire far from strong electricity such as the wiring of electric light air cond itioner etc and weak electricity such as t
100. l be shown on LCD It can be adjusted within 24hours AM refers to morning and PM to afternoon 4 Time confirming for TIMER After time setting press TIMER button to confirm ON stops blinking While OFF starts blinking Time displayed Unit starts at Xhour X min 5 Time setting for TIMER OFF Follow the same procedures in Time setting for TIMER ON 6 Time confirming for TIMER OFF After time setting press SET button to confirm OFF stops flashing Time displayed Unit stops at X hour X min To cancel TIMER mode m Just press TIMER button several times until TIMER mode disappears m According to the Time setting sequence of TIMER ON or TIMER OFF either Start Stop or Stop Start can be achieved 59 a Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA SLEEP Note Before using this function must adjust the clock or the sleep function will be disordered MODE FAN SWING Comfortable Sleep At night before going to bed you can press down the SLEEP button on the controller and the air conditioner will run by the comfortable sleeping mode to make you sleep more comfortable Press SLEEP button once to make the air conditioner have dE C the pre set sleep time first power on is 1h the sleep symbol will appear Press time button A W you can shoose the time in 1 8 hours Each press A F the time increases reduces 1hour and xh appear in the humidity setting area
101. lace the fan 120 AU242FHBIA ZH pueq Model AU482FIBIA AU48NFIBJA Bugeeu e uej m uBiu e punos ZH pueq Commercial Air Conditioner UE L AW A S 49 lt S Ve D S e e eS gv e Bugeeu 00 e 0 0L Buiooo 0 02 Buneeu 20 0 0 uej o o uiu oos u amp iu 0 09 00 9 esiou 11 Noise level Haief eansseJd punos 121 eansseJd punos Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA noise level AU482FIBIA cool 89Hz heat 89Hz ONOM ONOM ON TOW STE SE SE SE 0000 0000 00 1848 eunsseJd punos third octave band frequency Hz noise level AE242FCBKA cool 89Hz heat 89Hz BO Bees ee oO RNIN NON OWOWLOLOLOD ST TTOOMOONNNNN EE 7 7 7 1818 eu
102. le the unit will measure the difference between Tliquid and Ta at the interval of 5 minutes if the difference is within 5 degree the valve will be back to base open angle and modify the open angle due to the overheat state In heating mode adjust the open angle according to the conformity of liquid pipe temperature 1 Adjust range indoor unit startup min open angle 100 max open angle 470 indoor unit standby open angle 60 2 The indoor EEV open angle will depend on the temperature difference between indoor liquid pipe temp and average liquid temp of all running indoor units if lower than average temp the valve will open if high than average temp the valve will close Fan motor control Anti freeze control in cooling mode eWhen liquid pipe temp is below 7 degree for 40 minutes or when liquid pipe temp is below 4 degree for 10 minute the unit will enter anti freeze function At this time the current indoor EEV will close and the fan motor will turn into low speed from the current speed eAfter the anti freeze function has worked for 10 minutes and liquid pipe temp is over 7 degree the unit will quit anti freeze control take the data in EEPROM as standard Anti cold air control in heating mode eWhen liquid pipe temp is below 33 degree indoor fan speed will turn into low speed from the set speed when liquid pipe temp is below 25 degree indoor motor will stop eWhen liquid pipe temp is ov
103. lectric shock fire and other accidents will happen Using the specified cable to do wiring work and connecting firmly and properly Fix the connecting part of the terminals to prevent it from the external force Improper connection and fixing will cause heating and fire etc accidents Wiring shall be kept in correct shape avoiding extrusion After installation the electric box cover and the external panel shall not nip the wire Improper installation will cause heating and fire etc accidents When setting or moving the air conditioner do not let the air and things alike get into the refrigeration system except the specified refrigerant If air and other things enter abnormal high pressure will occur which easily cause break and body injuries etc When installing do use the accessories or specified parts If not using the parts specified by our company water leakage electric shock fire and refrigerant leakage will occur Do not lead the drainpipe to drain where the sulfur gas may be involved Otherwise the poisonous gas will enter into the indoor During installation if refrigerant leakage occurs do the ventilation work immediately As soon as the refrigerant gas meets fire poisonous gas will be produce If the refrigerant gas enters into room and meet the air blowing heater heater or stove etc fire source the poisonous gas may be produced After installation confirm there is no leakage of refrigerant Do
104. loat switch CN12 Swing motor CN13 Remote receiver CN14 Wired controller CN18 Neutral line of terminal block CN19 Auxiliary electric heating CN20 Live line of terminal block CN22 Auxiliary electric heating CN24 Room temp sensor AE unnecessary CN25 Communication of EEV box CN9 Pre set 37 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Cassette unit installation Installation Tools The following parts mentioned in this manual Installation tools are the installation accessories we prepared The installation tools listed in the following sheet can be used as required Symbol Parts Name 1 Screw driver 2 Hacksaw A Adhesive tape 3 Drill with a diameter of 60mm 4 Inner hexagon spanner shifting B Pipe clamp spanner 5 Spanner 14 17 19 24 27 Connecting hose 6 Pipe cutter 7 Pipe expander 8 Knife D Drainage hose 9 Pincers E Non hydroscopic 10 Leakage detector or soapy water heat insulating material 11 Band tape 12 Scraper F Gypsum powder 13 Refrigerant oil Installation Procedures 1 Selection of Installation Place 1 Place above the ceiling where it is enough space to arrange the unit Place where the drainage pipe can be arranged well 2 3 Place where inlet and outlet air of indoor and outdoor unit will not be blocked 4 Do not expose the unit to the place with heavy oil or moisture e g kitchen and workshop
105. maintenance plate should be installed on the place easy to maintain and near the place there should be checking hole with 6 00mm 600mm adjust the fixing holder as below figure vertical wall A A 2 2 The equipment has been dealt with the EPS heat insulation material so the drainage pipe needs not any other treatments 2 3 The pipe connected to indoor is led from the branch pipe of the equipment The gas pipe diameter can realize to match with different diameters by the changing pipe according to the indoor pipe diameter request 2 4 In installation the equipment gradient should be in the range of 5 or it may cause electronic expansion valve body in the equipment leakage or the other bad control failure 2 5 Bolt screw cap and gasket to fix the equipment will not be supplied by factory 3 Wiring Connection 3 1 The wire and refrigerant pipe must be connected to the corresponding place refer to marks on the equipment and the terminal block as 1 2 3 3 2 Wiring diagram is sticked on the back of cover plate and the wiring must be performed according to the wiring diagram or the control will be bad or indoor and the equipment will be damaged 3 3 After wiring the wires must be fixed with the wire clip firmly in case that the electric control parts are damaged or occurs person injury 25 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 5 Connecting figure MP2
106. mproper placement of earth wires can result in electric shock An electric leakage breaker must be installed otherwise electric shock or other accidents would occur After completion of the installation the air conditioner shall be electrified to check for electric leakage Preparation for installation Installation Tools Screw Driver flat head wabbler triangle Steel Saw 60mm Drill Inner Hexagon Spanner Shifting Spanner Spanner Pipe Cutter Pipe Expander 9 Knives 10 Clippers 11 Leakage Checker or Soap Liquid 12 Measuring Tape 13 Scraper or File 14 Refrigeration Oil Self contained Accessories No A B Name Non adhesive Adhesive Gypsum Drain hose Parts Tape tape Hose insulation powder material Electrical Requirements Power supply voltage Single Phase 1PH 220 230V 50Hz A specialized power supply wire which shall be installed by a competent person as per the rules of the national standard Power supply must be grounded effectively An electric leakage breaker shall be installed Layout of power supply wiring shall be Y connection If the power supply wire is damaged it must be replaced by the manufacturer or its service center or professional person the power supply wire shall be self contained For connection of the power supply plug L shall be connected with the live wire N shall be connected with netural l
107. n state SW01 02 SWO2 05 press SWO05 Uniform running Indoor is uniform running The indoor running mode is corresponding with the setting set SW01 02 SW02 05 press SW04 for more than 2 seconds after set of trial run success LD will or memory of remote display FF for 5 seconds controller cancel cancel according to operation remote controller Uniform stop Indoor uniform stops set SW01 02 SWO2 06 press SWO05 for 2 seconds after set success LD will display FF for 5 seconds cancel cancel according to operation of remote controller Indoor PMV Indoor PMV fully open set fully open compelled in 2 minutes SWO01 2 SWO2 10 press SW04 for more than compelled 2 seconds confirmation in 2 minutes 7 segment LED of base board will display all the time cancel the control software will recover PMV to normal open degree after 2 minutes after indoor software receives the signal of fully open from outdoor PMV will fully open only in 2 minutes Rated running Set the unit rated running set SWO01 02 SW02 11 press SW05 for more than 2 seconds after setting success LD will display F shows that the unit may enter rated running mode afterwards you can set 54 06 SWO07 SWO06 is used for increasing frequency while SWO7 is used for decreasing frequency cancel cancel according controller to operation of remote Outdoor
108. nd the neutral wire of the EEV power cable is not in accordance with those of indoor unit power cable E7 failure occurs 2 3 The coil temperature sensor is not in original place or not fixed well which cause EEV not work properly The efficiency will be bad or outdoor unit will be liquid return 2762 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Only No 1 unit in cooling If the refrigerant of the unit not running not flow if yes If No 1 unit in cooling If No 1 unit in cooling if yes OK Short connect the corresponding terminal open the EEV compulsorily If it can open check if the EEV communication wire is in accordance with that of indoor unit and modify If the refrigerant flows check if the EEV communication wire is in accordance with that of indoor unit and modify YMS Check if EEV is installed properly tap the EEV body or reset Replace EEV PCB Replace EEV 77 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 3 Confirm cooling operation Once outdoor stops the unit Set the unit in cooling mode and begin to run must run again 2 minutes and a half later Confirm compressor state Confirm the louver direction Make all indoor units running If temp drop between air outlet indlet is normal indoor unit blows cold air If air circulation i
109. not install the unit in a place where the combustible gas may be leaked In any case the combustible gas leaks and accumulated around the unit fire accident will occur Do heat insulation work to the refrigerant gas pipes and liquid pipes to reach the purpose of heat preservation If the heat insulation measure 15 not sufficient water generated by condensing dew will drip leading to wet the floor and indoor articles not damage the power line or change it arbitrarily to avoid occurrence of fire or electric shock Do not extend the power line or using other electric appliance in the same power receptacle to avoid fire or electric shock Note Do grounding work Do not connect the grounding wire to gas pipe tap lighting rod or telephone line Improper grounding will cause electric shock In some places the electric leakage breaker shall be installed If do not install the breaker electric shock may occur After installation power on to do electric leakage detecting test 30 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 8 Special Work and Main Points in Installation Warning During installation if refrigerant After finishing installation confirm leakage occurs take ventilation the refrigerant gas does not leak measurement immediately If the refrigerant gas leaks in the As soon as the leaked refrigerant room once it meets heater burner gas meets fire poiso
110. nous gas will and gas stove etc fire source the generate poisonous gas will generate A Choosing of pipes B According to the following indoor unit and outdoor unit installation diagram to choose the material and size of pipes and branch pipes Connection of pipes 1 Method of pipe connection a The pipe shall be as short as possible to guarantee efficiency b Daub the refrigerant oil on the connection and flare nut c When bending the pipes give the roundness as large as possible to avoid crashing the pipes d To connect the pipe fit the center and screw the nut with hand then use spanner or torque wrench to tighten it The fastening torque as shown in below table As shown in figure e Be careful alien matters such as sands S 25 gt anner water etc shall not enter the pipes pum Forced fastening without Joint careful centering may damage the threads and cause gas 2 Welding of pipes a In welding the nitrogen shall be used to Sppanner avoid oxidation of the pipe inner part b The refrigerating pipe shall use clean new pipes When working it shall take steps to prevent water and dust from entering c When loosening and tightening the nuts two spanners shall be used If using one spanner it can not reach the desired degree of tightness Nu Using the specified fastening torque to fasten nuts Pipe diameter mm Installation torque N M 6 35 11 8 1 2kgf m 13 7 1 4kgf m 12 1 49 0 5 0kgf m
111. nsion valves 9 The expansion valves of different indoor models are different 10 The first branch pipe must use FQG 180 the others use less than it Combination example 8 by 1 Note 1 AU24 can connect with max 5 indoor units and AU48 can connect with max 8 indoor units but pay attention that the total indoor capacity can not exceed 130 of outdoor cooling capacity 2 The ceiling concealed unit must connect with the outdoor unit through the MP2A or MP3A the wall mounted unit must connect with the outdoor unit through the exterior EEV box while for the cassette unit because it has the built in EEV so it need not anything and it can connect to outdoor directly 27 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 6 by one 509 or other 9000BTU units 509 or other 9000BTU units 509 or other 9000 units AU48 509 or other 9000BTU units 509 or other 9000BTU units 509 other 9000BTU units 28 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 6 The Order of Installation Work Before installation Work division to ascertain the person responsible for installation of pipes and wiring Make installation to ascertain the pipe installation dimension and position of electronic expansion valve to make control wiring system diagram outdoor unit Refrigerant pipe work Pay attention to dry clean and seal Dr
112. nssaJd punos third octave band frequency Hz 122 AU242FHBIA Model AU482FIBIA AU48NFIBJA Commercial Air Conditioner Haie ZH pueq 2 06 1009 ZHO6 e VMgIodcrcv Ie e esiou eunssaJd punos ZH pueq S D f 3 lt gt RS es lt lt N N N 0 lt SG qd er E 59 9 9 e gt 2 06 1009 ZH06 e VraIiN8 nv 1848 esiou eunssaJd punos 123 Haief 12 Performance curves MAU242FHBIA 11 00 10 00 9 00 8 00 7 00 6 00 5 00 4 00 3 00 2 00 1 00 0 00 heating capacity kW SE EE TETTE LETTE ELI cooling capacity kW PTT TTT TTT PTT ETT TTT TTT TT ENA PETE TTT TT TT TT YT PET TTT TTT LU PETE TTT TT TTT PET TTT TTT TT ANNEE PET TTT TTT Commercial Air Conditioner outdoor temp Model AU242FHBIA AU482FIBIA AU48NFIBJA eee PET TTT TTT TY FETT TET ETE YET YT 23 28 outdoor temp 33 124 38 43 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AU48 1 Calculation method Calculation method of
113. on is pressed time increases hour lf the button is kept pressed time will changes quickly Every time the button is pressed time decreases an hour lf the button is kept pressed time will changes quickly It can be adjusted with in 12 hours at will AM refers to morning and PM refers to afternoon 4 Timer confirming After time setting press SET button to confirm time 5 Canel TIMER mode Just press TIMER button several times until TIMER mode disappears According to the time setting sequence of TIMER ON and TIMER OFF either start stops or stops start can be realized After replacing batteries or if apower failure occurs TIMER setting must be reset Remote controller has memory function When you use TIMER mode next time just press SET button after mode selection if timer setting is the same as the previous one 67 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 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 the 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 autom atically turn off negative ion generati on device About Health operation After the start of heal
114. oor unit and outdoor unit connect to power supply separately when some indoor units running in cooling mode when powered off because the EEV does not reset the indoor units maybe drop water or ice up We recommend that the indoor unit connect to power supply from the outdoor unit or use one power supply with the outdoor unit If the indoor unit need connect power supply individually the personnel must explain to the customer that he she must switch off the unit with wired controller or remote controller then he she can shut off the indoor unit If there is accidental power failure please firstly power on all the indoor units after power on in order to reset the indoor EEV 5 When wiring the MP2A or MP3A please ensure that the power source and the communication wires of MP2A or MP3A must correspond with the relative indoor units 6 AS FCBHA and the cassette unit will not be connected with the MP2A or MP3A 7 If the ceiling concealed indoor unit is with the electric heater the circuit breaker will vary accordingly 36 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 13 Indoor unit number setting Indoor unit has two kinds of control type infrared control and wired contrl so the corresponding unit address setting will vary as the following for the infrared control type unit set with the address setting controller for the wired control type unit set with the dip switch and th
115. 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 If any abnormal phenomena is found e g 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 After the unit being used for a long time the base should be checked for any damages If the damaged base is not repaired the unit may fall down and cause accidents e Don t dismantle the outlet of the outdoor unit The exposed fan is very dangerous which may harm human beings e When the unit needs maintenance and repairment please call dealer to handle it Incorrect maintenance and repairment may cause water leak electrical shock and fire hazard 14 Haier Commerc
116. or LED302 flashes 6 times 15 supply voltage good no Lack of phase Modify power supply circuit yes Are connectors in no good condition Check and reconnect yes Is actual compressor current detected no Wrong report Replace by ammeter or test board 0010451601 0010451971 or 0010451530 above protection limit 16 9A 1 Is output voltage among U V and W balanced 2 Disconnect all terminals Is resistance between P and N P and U V W N and U V W acceptable no Replace power module Check 1 Is a valve in system close 2 15 piping clogged 3 Is system overfed is there air in system Is pressure acceptable 4 Cooling cycle Is condenser dirty Does outdoor fan motor run at low speed or stop 5 Heating cycle Is evaporator or filter dirty Does indoor fan motor run at low speed or stop yes yes Is compressor good condition 15 compressor winding resistance acceptable Is it stuck yes 1 Check if resistance between rectifier L1L2L3 and 111213 Is 3 phase rectifier in good no complies with diode characteristics condition 2 Measure and terminals of CN201 Measure voltage between P and N which should be 530VDC at 380VAC 5 Is electrolytic capacitor no Check capacitance and for filtration in good
117. pperation operation operationjoperation Wire controlle 16 Electric heating display 17 Operation mode button Used to set working mode Auto Cooling Dehumidifying Heating Fan 18 Fan speed button Used to set fan speed Low Fan Med Fan High Fan Auto 19 Swing button Used to set Auto Swing or Fixed air sending direction 20 Temperature Setting button Used to set temperature temperature range 16 C 30 C 21 Clock button Used to calibrate the time of timer and clock Model AU242FHBIA AU482FIBIA AU48NFIBJA 22 Setting button Used to confirm the time of timer and clock 23 Sleep button Used to set Sleep state 24 Time Adjusting button Used to adjust the time of timer and clock 25 Reset button When the wire controller appears abnormal condition use a sharp pointed article to press this button to make the wire controller resume normal 26 Air Filter Reset button After cleaning the air inlet press this button the unit can start to operate 27 Timer button Used to set the mode of timer 28 Lock state display 29 Health Used to control the generating oxygen function and negative ion function 30 Remote control window Used to receive the remote control signal Note 1 This model does not have the following related display and function sy e 7922 14 16 26 2 The outdoor unit no oxygen bar function or no negative ion unit no health function and he
118. ptional CN27 Indicator board To exterior testing device showing failure code CN30 CONI pressor compressor current detecting board detecting CN32 15V GND CN34 Low pressure switch port To compressor low pressure switch CN35 Unloading port To unloading valve 83 Model AU242FHBIA AU482FIBIA AU48NFIBJA Haief AU48NFIBJA PCB ports name and functions Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Ports Ports name Wiring method 5 Power supply ports To power of 3 PH 380V 50Hz U V W Compressor ports To motor pay attention to phase sequence E Grounded port Grounding less than 100 than 1 6mm If 3 phase it is connected to neutral wire if 1 N Neutral wire port M phase it is blank L1 L2 Reactance port To wire of reactance non polar CN102 Current transducer port To current transducer CN211 CN212 Fan motor port To fan motor CN205 Water pump port To water pump be spare CN206 Electric heater port To electric heater CN207 Solenoid valve port To solenoid valve CN208 Solenoid valve port To solenoid valve CN209 Four way valve port To four way valve CN210 Oxygen generator port To oxygen generator blank temporarily CN303 Testing board port Ma T to modify check data for CN304 Communication port To C1 C2 of communication block CN307 CN308 Fan motor port for dispersing To fan motor
119. r 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 e Install the indoor unit where there is no T V set radio set and wireless appliance Underneath and the sunlight lamp is over one meter away e f the remote controller is installed on the wall the indoor unit shall be ensured to receive The signal while the sunlight lamp is on Method for Cutting and Expanding Pipes When the pipe is too long or the mouth is damaged the pipe needs to cut or expanded 1 cutting hose 2 Removing burr 3 Put on nut 4 Expand Hose Expansion Size HH 6 35 mm 1 4 0 8 1 5 12 7 1 2 1 0 2 0 Hose Expander Correct Not Correct Tilting cracks on expanded mouth burr incomplete too long 44 n Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA When the mounting plate is firstly 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 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 n
120. refrigerating capacity Refrigerating capacity to be known Refrigerating capacity x 1 x 2 x 3 x 4 x 5 W 1 Capacity compensation value of indoor Capacity compensation value of outdoor air dry bulb air wet bulb temperature condition temperature condition 2 1 2 3 Capacity modification value under airflow variation rate of indoor unit group only for airflow type unit 1 1 5 0 5 10 15 indoor air wet bulb temperature 4 Fall of refrigerant pipe of indoor and outdoor unit capacity compensation value of pipe length 20 25 30 35 40 43 outdoor air dry bulb temperature 1 0 0 9 80 90 100 110 120 Capacity modification value airflow variation rate 5 Capacity compensation suitable for total capability of indoor unit Outdoor unit 120 group cooling Length of refrigerant pipe corresponding length L m prepueys 40 60 80 100 120 135 Total capacity of indoor unit group 2 Calculation method of heating capacity Heating capacity to be known Heating capacity 1 x 2 x 3 x 4 x 5 x 6 W 1 Capacity modification under indoor b temperature condition 3 Capacity modification value under airflow variation
121. ress the button again the sign disappeared and negative ion generator stops working after all health function of the indoor unit being fully canceled oxygen pump stopped About Health functon only has oxygen pump fancton After set the right function mode press health button remote controller displays now the indoor unit power lamp turns form orange color to green color oxygen pump generator starts up to apply oxygen to indoor Press the button again the sign disappeared after all health function of the indoor unit being fully canceled oxygen pump stopped NOTE For the indoor Wall Mounted and Cabinet units Some functions of this controller maybe not available according to the corresponding PCB s functions such as 8 302 8020563620869636263 which are optional for different unit NOTE For the Convertible and Cassette and console indoor units Some functions of this controller maybe not available according to the corresponding PCB s functions such as 5X8X13260602036302 68369656263 which are optional for different unit NOTE For the Duct and Ceiling concealed indoor units Some functions of this controller maybe not available according to the corresponding PCB s functions such as 2 5X8X13020802 50302 06869636263 which are optional for different unit 64 Remote controller D m GO 5 Ga 86 5 see
122. rmal insulated The connection part between the drain pipe and the indoor unit shall be insulated so as to prevent dew generation The drain pipe shall be slant downwards greater than 1 100 The middle part shall not be S type elbow otherwise abnormal sound will be produced The horizontal length of the drain pipe shall be less than 20 case of long pipe supports shall be provided every 1 5 2m to prevent wavy form Central piping shall be laid out according to the following figure Take care not to apply external force onto the drain pipe connection part 1 5m 2m p 98 Support uil ibd 4 Insulation S type elbow supplied by the user apoye 1 100 To the largest app 10cm NS Wall VP30 Down slope above 1 100 Pipe and insulation material n Pipe Rigid PVC pipe VP31 5mm internal diameter Loa o gt gt OO Pa 9 o c TD D a Insulation PE with thickness above 7 mm Hose Drain pipe size 3 4 PVC pipe The hose is used for adjusting the off center and angle of the rigid PVC pipe Directly stretch the hose to install without making any deformation e The soft end of the hose must be fastened with a hose clamp e Please apply the hose on horizontal part Hose Hose clamp Insulation treatment e Wrap the hose and its clamp until to the indoor unit without any clearance with insulating material as shown in the figure
123. s Connecting Method tare MAX Dro outdoor upper 30 outdoor lower 20 Between LD 80 0 pg L A m 9 52 liquid pipe 65g m X actual length m m m m gt X JU o E Q 5 e Haief AB092FCBIA 9000 11000 W 2800 W 3200 10 xm h 220V 230V Cooling capacity ap i ing capacity mid g capacity ing current exchanger 50HZ 1 R407C 42 centrifugal fanx1 700 Power source n tarting current Refrigerant Noise level H M L ype x Number Air flow H M L 55 Deh ifyin Fan Heat exchan 660x570x260 710x675x360 700x700x60 740x735x105 19 0 2 8 23 5 4 8 6 35 1 4 12 7 1 2 flared 12 23 n starting mothod Heat exchanger Shipping Panel dimension LxWx kg kg Gas uited area Refrigerant control method Dimension LxWxH Shipping Weight unit panel ghi Shipping kg kg Liquid Piping Connection method Controller type AB182FCBIA 17000 19000 5000 5500 Cooling capacity Heating capacity Cooling capacity Heating capacity Dehumidifying capacity did 10 xm h V Hz 1PH 220V 230V 50HZ Running current tarting current Refrigerant Noise level e o o c o R407C 421 I centrifugal fanx1 700 ajnaj 5 o 3 9 E o o H M L ype x Number ir flow H
124. s installers distributors etc when making installation please make sure when the power is shut down whether artificially or accidentally the whole system including outdoor unit and all the indoor units must be off If you do not make the installation as our indication Haier will not be responsible for any problem resulting from this User Caution About the remote cnotrol operation above only take wired remote controller and remote controller as a example about the remote controller and remote receiver use method it is the same remote controller please use refer to above method No sleep function when use remote and remote receiver 61 Haier Commercial Air Conditioner Model AU242FHBIA About health function MODE SWING TEMP HEALTH CLOCK TIMER SLEEP FLTERRESET ON OFF On the Health mode if you want to setting timing open mode should close the health first On the timing open mode please don t use health function AU482FIBIA AU48NFIBJA 1 How to use the health function only for units with this function After set the right function mode press health button remote controller or wire controller displays 9 oxygen pump or negative ion generator starts up to apply oxygen or negative ion to indoor unit Press the button again the sign disapp eared and negative ion generator stops working After
125. s OK If the operation voltage is OK Check power voltage and power 230V 10 circuit If the running current is 15 of the nominal value at max frequency Check indoor outdoor temp Check piping length refrigerant charge Check compressor running frequency and if there is abnormal working pressure is normal noise normal 78 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 4 Confirm heating operation td t th it Set the unit in heating mode and begin to run Hessen can work only 2 minutes and a half later Confirm compressor state If blowing warm air Confirm the louver direction If air circulation is OK Make all indoor unit running If temp drop between air outlet indlet is normal If the operation voltage is OK Check power voltage and powe 230V 3 1026 circuit If the running current is 1596 of the nominal value at max frequency Check indoor outdoor temp Check piping length refrigerant charge Check compressor running If working pressure is normal frequency and if there is abnormal noise normal 79 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 8 5 PCB information AU242FHBIA PCB circuit diagram
126. s no correct according to reconnect wiring diagram yes Is rectifier in good condition Is AC if compressor is ins contactor activated Is contact running good Is power module in good condition yes Is compressor current Is connection between acceptable Is DC voltage TO iter board CN1 and O reconnect between both ends of 4 mainboard CN4 normal acceptable yes yes Check connection mainboard Replace filter and make necessary replacement 108 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 10 4 AUA8NFIBJA troubleshooting 1 Communication failure Note For outdoor units before December 2004 in the event of 3 IPM or high current faults outdoor unit will stop signal transmission to indoor unit Indoor unit will display communication fault Normally testing board will indicate number of indoor units The number is fixed Wired controller display E9 4 flashes of indoor TIMER light of models with remote control Is number of indoor units yes indicated by testing board Communication normal correct Changeable p Is indoor unit address properly set Without Reset address repetition n Are communication terminals of T indoor and outdoor units Reconnect securely connected yes Is shielded wire no Use shielded wire Shield layer used for should be grounded at
127. s strictly forbidden to use refrigerant purging a Choose of vacuum pump it shall choose those that can reach a good vacuity over 200Pa and have a large air discharge amount over 40L min b After finishing the airtight quality test and the nitrogen discharging connect the instrumental diverter to the 3 way discharge valve then connect the vacuum pump according to the below figure Low pressure High pressure meter 3 way valve close Indoor side Outdoor side Instrument distributor Welding part Pressure reducing valve Indoor unit assembly Outdoor unit 2 way valve Liquid side 33 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA c Vacuumize 2 3 hours according to the length of the pipe When vacuuming confirm the gas side and liquid side of the 2 way valve and 3 way valve shall be in full close state d When it is not lower than 200Pa after 2 hours or more vacuuming vacuums for another 1 hour If after more than 3 hours vacuuming it is still not lower than 200Pa the leak part shall be found e When it is lower than 200Pa after more than 2 hours vacuuming close both the valve VL and VH of the diverter then close the vacuum pump Place it there to observe if the vacuity changes If it changes it indicates leakage exists so the leak part shall be found f After finishing the above vacuuming work replace the vacuum pump with refrig
128. same type press the Reset button marked with a pointed article Note It is recommended that the batteries be removed from the compartment if the remote controller is not used for an extended period The remote controller is programmed for automatic test of operation mode after the batteries are replaced When the test is conducted all icons will appear on the screen and then disappear if the batteries are properly fitted When the display become weak this display no power in the battery please change the battery Clock Set clock should be adjusted as follows When unit is started for the first time and after replacing batteries in remote controller 1 Press CLOCK button clock indication of AM PM flashes 2 Press A or w to set correct time Each press will increase or decrease 1 min If the button is kept pressed time will increase or decrease quickly 3 After time setting is confirmed press SET AM or PM stop flashing while clock starts working Note AM means morning and PM means afternoon COOL HEAT and DRY Operation 1 Unit start Press ON OFF button unit starts Previous operation status appears on LCD except for TIMER SLEEP and SWING setting 2 Select operation mode Press MODE button At each press operation mode changes as follows follows COOL DRY HEAT Then select COOL operation or select operation or select HEAT operation
129. single communication point yes T Are communication wire and power cable set wiring Separately separately yes Is there external signal yes interference Eliminate interference no T Is indoor mainboard poorly welded Replace indoor PCB no T Are communication resistance and no capacitor of indoor PCB correct See Replace indoor PCB NOTE yes Check outdoor mainboard Make necessary replacement NOTE 1 49 50 resistor AS072 182FCBHA circuit and R40 R41 resistor in AE072 242FCBKA circuit have a resistance of 100 K instead of 47K AS models and C28 C30 of AE models use 104 polyester resistors 109 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 2 Sensor failure Are connectors of sensor properly no Reconnect connected yes Are resistance and temperature no characteristics of sensor Replace sensor acceptable yes Check and replace 3 EEPROM failure Is CPU chip installed firmly 7 Reinstallin right direction yes 1 Is fault corrected after yes JP301 is reset Normal no 5 If chip is broken Replace chip no Is it normal after replacing chip no Check PCB and replace 110 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 4 Over current protection outdo
130. spension screws 4 prepared in the field when the suspension screwheight exceeds 0 9m M10 size is the only choice These screws shall be installed as follows with space adapting to air conditioner overall dimensions according to the original building structures Wooden structure A square wood shall be supported by the beams and then set the suspension screws New concrete slab To set with embedded parts foundation bolts etc J J Suspension screw Iron reinforcement Foundation bolt Knife embedded part Guide plate embedded part Pipe suspension foundation bolt Original concrete slad Hanging bolt Use hole hinge hole plunger or hole bolt Steel reinforcement structure Use steel angle or new support steel angle directly i i Suspension scre Support steel angle Hanging of the indoor unit Fasten the nut on the suspension screw and then hang the suspension screw in the T slot of the suspension part of the unit Aided with a level meter adjust level of the unit within 5mm In order to drain water normally the drain pipe shall be processed as specified in the installation manual and shall be heat insulated to avoid dew generation Improper hose connection may cause indoor water leakage 50 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Requirements e The indoor drain pipe shall be the
131. stallation manual attached with the outdoor unit 6 The connecting flange should be provided by the user himself 7 The indoor unit has two water outlets one of which is obstructed at the factory with a rubber cap Only the outlet not obstructed liquid inlet and outlet side will be generally used during installation If applicable both the outlets should be used together com Note The access hole must be provided during installation of indoor unit for maintenance After selecting the installation space proceed the following steps 1 Drill a hole in the wall and insert the connecting pipe and wire through a PVC wall through tube purchased locally The wall hole shall be with a outward down slope of at least 1 100 See Figure 2 2 Before drilling check that there is no pipe or reinforcing bar just behind the drilling position Drilling shall avoid at positions with electric wire or pipe 3 Mount the unit on a strong and horizontal building roof If the base is not firm it will cause noise vibration or leakage 4 Support the unit firmly SG Fig 2 5 Change the form of the connection pipe connection wire and drain pipe so that they can go through the wall hole easily Each of the air sending duct and air return duct shall be fixed on the prefabricated panel of the floor by the iron bracket The recommended distance between the edge of the air return duct and the wall is over 150mm T
132. sting actual condition At the easily defrosting place set as H at operation the not easy defrosting place set as L when out of factory set as M Temperature limitation 15 CEx TEx2 CE Ge When Ta lt 2 C TA TE Z9 C for continuous 2 minutes Te lt 12 C for continuous 5 minutes Ge When 22 Te lt 5 C for continuous 5 minutes T2 Haief Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 2 Defrosting control When defrosting condition is met compressor frequency will go down to the min frequency and 4 way valve will be powered off and turn into cooling mode fan motor off EEV in soft startup open angle compressor frequency rises up to 78Hz and begins to defrosting operation 3 Quit condition TE is over 7 for 60 seconds in all or is up to 12 C defrosting is over Defrosting accumulative time is up to 10 minutes defrosting is over Electric 1 When TAx27 C if the compressor stops running electric heater will electrified heater 2 When TAZ27 C or when compressor starts up electric heater will be off and temp control difference is 5 C 1 To balance pressure it will open 1 minute before compressor starts up and keep open Unloading in soft startup period after compressor starts up until the soft startup is over in the valve SV1 remaining operation and 10 minutes later after shutoff SV1 will open control 2 Impro
133. system 4 Cooling cycle Is condenser dirty Does outdoor fan motor run at low speed or stop 5 Heating cycle Is evaporator or filter dirty Does indoor fan motor run at low speed or stop 6 Is ambient temperature too high Is system overloaded Is pressure acceptable yes compressor winding resistance Is compressor in good condition acceptable Is it stuck 1 Check diode characteristics of rectifier AC Is rectifier in good condition 2 Measure voltage between P and N which should be 310VDC at 220VAC yes T Is electrolytic capacitor no Check capacitance and for filtration in good conductivity and make condition necessary replacement Check mainboard and 103 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 5 IPM power module protection 9 flashes of outdoor ALARM light fault readout 9 Possible causes 1 Short circuit or overcurrent 2 Four way control supply 15VDC is less than 13 5V 3 Module is hot with a temperature higher than 145 C Are connectors in low voltage PCB in poor Y8 Check and reconnect contact yes Is 10 pin connector between IPM and mainboard short circuit or in m Replace cable poor contact no Measure
134. t Installation of indoor unit duct 1 Installation of air sending duct e This unit uses rounded duct the diameter of the duct is 180mm e The round duct needs to add a transition duct to connect with the air sending duct of indoor unit then connect with respective separator As Fig 1 shown all the fan speed of any of the separator s air outlet shall be adjusted approximately the same to meet the requirement for the room air conditioner Indoor unit flexible joint Transition duct Rounded duct a Tie in of air p E distributary i Air distributary Fig 1 Unit mm 2 Installation of air return duct Use rivet to connect the air return duct on the air return inlet of the indoor unit then connect the other end with the air return blind As Fig 2 shown 49 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Air return blind Air return duct Indoor unit rivet Fig 2 3 Thermal insulation of duct e Air sending duct and air return duct shall be thermally insulated First stick the gluey on the duct then attach the heat preservation cotton with a layer of tinfoil paper and use the gluey nail cap to fix Finally use the tinfoil adhesive tape to seal the connected part As Fig 3 shown luey heat preservation lue i cotton tinfoil Bil cab adhesive tape Fig 3 Installing the suspension screw Use 8 or M10 su
135. t in water leakage electric shocks and fires Please install your air conditioner on a wall or any place which can holder the weight of the air conditioner And it cannot be installed on a non professional metal structure such as a burglary resisting net Otherwise injury would occur due to a falling of the unit Execute the prescribed installation construction to prepare for earthquakes and the strong airs of typhoons and hurricanes etc Improper installations can result in accidents due to a violent falling over of the unit e Wiring shall be done with the specified cable and the connection shall be firm and reliable And the terminal connector shall be fixed firmly and reliably not to let external force exercise on the cables Any improper connection or fixing would cause heat fire and other accidents e Wiring shall be done in a correct shape not to make any section rise upward and accurately install the air conditioner The cable shall not be clamped by the lid or outer plate Any improper installation would lead to fire heat or other accidents When setting up or moving the location of the air conditioner do not mix air etc or anything other than the designated refrigerant R407C within the refrigeration cycle for such mixing would result in rupture and injury caused by abnormal high pressure Always use accessory parts and authorized parts for installation construction Using parts not authorized by this company can res
136. th 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 makethe room air fresh and healthy Fresh Air operation After turning on the unit and set the desired working mode the remote controller LCD and control panel LCD display the working mode RESET CODE LIGHT LOCK ee Press the Fresh air button of the remote controller the LCD displays amp and the unit begins continuous fresh air operation press the button again the 2 in flashes and begin automatic fresh air operation press the button for the third time to cancel fresh air function Continuous fresh air operation That is to say if there is no intervention the fresh air operation will continuously run and not stop Automatic fresh air operation That is to say the fresh air operation runs intermittently After 20 minutes operation the fresh air operation will stop for 20 minutes runs for another 20 minutes it will stop for another 20 minutes repeatedly runs Note Either in ON or OFF state the fresh air operation can be independently set to run About Fresh air operation The ventilation device of this air conditioner can discharge the indoor air to outdoors while the outdoor fresh air supplement to indoors so that fulfills the fresh air function 68 Haier Commercia
137. tion fin and copper Refigerantcontroimethod 635 Piping Connection method Suedaeca 12 23 Controller type wired controller or remote controller 10 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA ism model Cooling capacity Heating capacity 20000 28000 Dehumidifying capacity 10 xm3 h 2 4 220 230 50 2 R47C 7 dB A Fan Heat exchanger Combinationofwavecrannyradiationfin and _ Refrigerant control method Capillary EEV Capillary EEV Liquid fmm 952 982 O Piping Gas fmm 588 E wired controller or remote wired controller or remote Controller type controller controller Function Cooling Heating 2 0 N V Hz Fan Speed Speed W mih Heat exchanger Dimension Drainage pipe material diameter dB A kg m m Connecting method Indoor unit 3 mm mm mm m m 11 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AS092FCBHA Heating 10000 3200 _ AS072FCBHA Function CCC ling Cooling Capacity BTU h 7000 9500 9000 Capacity 2000 2800 2600 ower 50 Dehumidifying capacity 10 xm h 1 0 3 x 1 0 1 5mm
138. tor HOW TO CONNECT WIRING TO THE TERMINALS A For solid core wiring or F cable Fig 17A 1 Cut the wire with a wire cutter or wire cutting pliers then strip the insulation to about 25mm of the exposed solid wire 2 Using a screwdriver remove the terminal screw s on the terminal board 3 Using pliers bend the solid wire to form a loop suitable for the terminal screw 4 Shape the loop wire properly place it on the terminal board and tighten securely with the terminal screw using a screw driver B For strand wiring Fig 17B 1 Cut the wire with a wire cutter or wire cutting pliers then strip the insulation to about 10mm of the exposed strand wiring 2 Using screwdriver remove the terminal screw s on the terminal board 3 Using round terminal fastener or pliers securely clamp a round terminal to each stripped wire end 4 Position the round terminal wire and replace and tighten the terminal screw using a screw driver Fig 17 A Solid B Strand wire Round E terminal 5 Loop E i 2 gt gt e Insulation After passing the connection cord and power cable through the insulation tube fasten it with the cord clamp as shown in Fig 18 46 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Fig 18 Screw with A Insulation tube special washer YU Screw with Cord clamp special washer terminal Round terminal PA A ermina
139. tton after the power comes again If the controller no sleep key use the swing key instead the sleeping on setting the auto restart function Concerning MRV Auto Restart function for H MRV models Haier Auto Restart function when the unit power drops down suddenly the unit microprocessor will store the previous working condition and when the power is on again the unit will run as this memory Auto Restart function is designed basically on the MRV whole system but it is suitable for each indoor unit individually If some of indoor units power cut down but the outdoor unit and the other indoor units still work maybe problems will happen such as freezing at cooling mode and overload protection at heating mode on those indoor units without power Reason When one or some indoor units power drops down and the other indoor units are still work the indoor units without the power will keep the previous working condition before the power is off And expansion valve keeps open at a kind of opening rate condition as the previous requirement so there is refrigerant flowing in the exchanger but the indoor fan stops working If the units work at cooling mode the indoor units without the power will maybe make freezing If the unit works at heating mode maybe the outdoor unit compressor will stop because of the pressure or temperature protection This is our design basically on Auto Restart function currently Haier Herewith solemnly informs our customer
140. ture range Rated Maximum Minimum Cooling DBC 27 32 18 Indoor WBC 19 23 14 DBC 35 43 5 outdoor WBC 24 26 Heating DBC 20 27 15 Indoor WBC 14 5 DBC 7 24 15 outdoor WBC 6 18 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 1 4 Product features Af New designed panel 700 700 with the 600 600 cassette unit New designed swing louver with the non smooth surface which can hold back the condensant water New designed filter lock which will fix the filter more firmly than before Adopts the stepping motor give the louver a larger swing angel New fan with bigger diameter fan blade sending out larger air flow The cassette indoor unit adopts the panel whose dimension is identical to that of ceiling after installation the unit will be accordant with the decoration decor Free combination total indoor capacity can be 50 130 of that of outdoor capacity The outdoor unit can match with all types of indoor unit with the allowable capacity such as the cassette type the ceiling concealed type the wall mounted type etc Af Optional control types infrared remote controller and wired controller The unit can be controlled by the smart infrared remote controller YR H71 which can realize many functions such as heating cooling fan swing fresh health filter up down electric heating etc Furthermore the remote controller can be compatible with many old controllers more con
141. ty so they must be obeyed After installation do test run to verify everything is normal after that please explains the use method and maintenance method to the user according to the operation manual Additionally give the installation manual together with operation manual to the user and ask them to keep them properly Warning The distributing shop where you bought the air conditioner or the specified shops shall do the installation work If you do the installation work by yourself the improper installation will cause water leakage electric shock fire and other accidents The installation work shall be in line with what the installation manual specified If installation 15 not proper water leakage electric shock fire and other accidents will occur Install the air conditioner to a place where can definitely stand its weight Places not firm enough will cause drop down of unit resulting in body hurt The installation work shall be preventive to typhoon and earthquake If the installation 29 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA work is not met with the requirements overturn of the unit will occur resulting in accidents The wiring work shall be done by a qualified person and referred to the technical standard of electric equipment indoor wiring regulation and what the manual specified Do use special circuit If the capacity of the circuit is not enough or bad work e
142. ult in water leakage electric shock fire and refrigerant leakage The drain pipe must not be placed or connected into the sewage tank where harmful gas such as sulphurous gas and etc would exist otherwise the harmful gas would enter the room During installation if the refrigerant is leaked please immediately take measures of ventilation otherwise a harmful gas would be generated whenever the refrigerant meets fire After installation please ensure that the refrigerant is not leaked because the leakage of refrigerant would produce a harmful gas if it meets fire or heating stoves Don t install the air conditioner where flammable gas would be probably produced otherwise in case the flammable gas is leaked and exists around the unit fire would be caused For the drain pipe follow the installation manual to insure that it allows proper drainage and thermally insulate it to prevent condensation Inadequate plumbing can result in water leakage and water damage to interior items The refrigerant gas pipe and liquid pipe shall all be thermally insulated to preserve the temperature Any improper insulation would make the unit moist and the water would drop onto the floor or wet the indoor items 42 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA PRECAUTION Execute proper grounding Do not connect the earth wire to a gas pipe water pipe lightening rod or a telephone ground wire I
143. valves Open all the valves on the outdoor unit Gas leakage detection Check with a leakage detector or soap water that if there is gas leakage at the pipe connections and bonnets Insulation treatment Operate insulation treatment on both the gas side and liquid side of pipes respectively During cooling operation both the liquid and gas sides are cold and thus shall be insulated 50 as to avoid dew generation The insulating material at gas side shall be resistant to a temperature above 120 degree The indoor unit pipe connection part shall be insulated The notch upward Attached detail view RU Field piping side Subsidiary insulation tube Indoor unit Heat insulation sheathing Screw cap 52 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 6 Parts and Functions AU242FHBIA air inlet air outlet grille ompressor inside of unit stop valve AU482FIBIA AUA8NFIBJA air inlet air outlet compressor inside of unit stop valve 53 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Cassette unit Swing louver Air flow direction can be adjusted by using the SWING button on the remote controller Operating Control Panel Air Filter Inside of the Inlet Grille CD Remote receiver
144. ve low pressure in heating mode when TS TE min valuex 13 C SV1 open temp difference is 3 C Spray valve SV2 Adjust the SV2 according to the discharging temperature when 115 C SV2 will open when TD lt 110 C SV2 will close control High pressure switch protection When input level of pressure switch is 1 it shows there is no protection When input level of pressure switch is 0 for a while it shows high pressure beginning compressor stops and the unit alarms The alarm can be resumable the unit will alarm in 3 minutes when compressor is standby Pressure Low pressure switch protection switch When input level of pressure switch is 1 it shows there is no protection control When compressor is running if low pressure switch has acted for 3 minutes continuously the unit will alarm When compressor stops if low pressure switch has acted for 30 seconds continuously the unit will alarm When compressor starts up low pressure switch will be shielded within 3 minutes Qn defrosting and in 6 minutes after defrosting is over low pressure switch will be shielded 73 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Compress or capacity output control In cooling mode frequency will be calculated according to the horse power of the running indoor units 1 Every indoor unit will confirm 8 capacity codes according to the difference between the set t
145. venient for utilizing If the unit is with wired controller YR E06 which can realize remote control type by adding an infrared controller YR H7 1 amp Auto check function The unit can display the malfunction codes on the control board by using advanced auto check technology convenient for user find and dwell with the abnormal running E Auto restart function optional 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 New refrigerant control device MP2A MP3A The new refrigerant control device MP2A and MP3A replace the previous device MP2 and MP3 The new device includes gas pipe and liquid pipe more convenient for installation than before B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA Total unit outdoor units appearance model refrigerant m AU482FIBIA AUA8NFIBJA indoor units AB092FCBIA Four way cassette AB142FCBIA AB182FCBIA AE072FCBKA 092 AE122FCBKA Ceiling concealed AE142FCBKA AE182FCBKA AE242FCBKA AS072FCBHA AS092FCBHA Wall mounted AS122FCBHA colorful screen AS142FCBHA AS182FCBHA Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 2 SPECIFICATION AU242FHBIA AU242FHBIA 90 15 5 5 3 E 9 9 amp
146. xpansion valve and indoor unit control refrigerant flow itself OFF means outside type 25 is connected with electronic expansion valve communication and the electronic expansion valve box MP3A control indoor refrigerant flow Attentions The CN9 is available So the second bit SW03 is must be set ON And CN19 CN22 is not available CN16 is a serial communication port for service The dip switch setting when out of factory 96 B Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA AE 2FCBKA wiring diagram Indoor unit wiring diagram 0010573324 electronic M NOTE The dashed in indoor controll board is expansion valve PCB inner wiring for built in EEV type About control board outer connector In the diagram gas pipe temp sensor liquid pipe ia temp sensor indoor fan motor transformer are necessary parts Wired controller receive CNB display electronic expansion valve float CNguiter temperate Switch pump motor swing motor parts matched gas pipe temp sensor with the model combined usage Auxiliary liquid pipe temp sensor L B electric heater negative ion generator high voltage accumulator are optional parts for health comfort combination usage arbitrary Wired 0000 H transformer 27 controller and receive display only choose one ambient te mus jesas float Switch indoor temp 5 sensor
147. y if the earth wire of outdoor unit is properly earthed Disconnect the indoor unit transmission lines from the control panel and connect them to the outdoor unit Check if the number of indoor units is steady through the outdoor unit mainboard or the test kit Check if the transmission resistor and capacitor in indoor unit mainboard are in good condition See flow chart of troubleshooting for outdoor unit 119 a H 1 f Commercial Air Conditioner Model AU242FHBIA AUA482FIBIA AU48NFIBJA Models with wired controller Models with wireless remote controller N A 8 flashes of Timer light Description Fault with 12V supply of heavy current board in expansion valve Check if there are noticeable burns or hot components in the mainboard Use a multimeter to check if the 12V supply in 7805 chip of mainboard is in good condition Measure the central and the left pins of the chip Check if the mainboard is properly connected Replace the mainboard Models with wired controller Models with wireless remote controller N A 9 flashes of Timer light Description Fault with polarity of indoor unit to be determined Check if the null wire and the live wire of indoor unit are properly connected Check if the mainboard and the fan wire are noticeably damage 5 recommended to bring spare parts of fan Connect the fan to see if there is any alarm If yes replace the mainboard If no rep
148. y otherwise it will cause the unit not work and demaged BR Brown On running indoor 1 must be electrified always or air conditioner does not work normally When the system is equipped with MP2A W White the installer should use the corresponding two way electronic expansion valve communication wiring and its driver port Y G Yellow Green 98 Haier Commercial Air Conditioner Model AU242FHBIA AU482FIBIA AU48NFIBJA 10 Failure code and troubleshooting 10 1 Outdoor failure code AU242FHBIA AU482FIBIA check indoor mainboard LED1 or outdoor mainboard LED1 Failure code Failure description 01 Outdoor defrosting temperature sensor TE circuit failure 02 Ambient temperature sensor TA circuit failure 03 Suction temperature sensor TS circuit failure 04 Discharging temperature sensor TD circuit failure 05 Outdoor mid condenser temperature sensor failure 06 Over current abnormal 07 Current mutual inductor failure 09 IPM protection 10 EEPROM on PCB incorrect 11 Discharging temperature protection action 13 Pressure switch circuit abnormal 14 Pressure switch circuit abnormal 19 Discharging temperature protection action when in low frequency 20 Communication abnormal when chip 857 receives signal from chip 846 21 Compressor over current failure 22 Communication abnormal when chip 846 receives signal from indoor unit 23 Chip 846 EEPROM chip 857 EEPROM failure 99 Hai

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