Haier HSU18VH7 User's Manual
Contents
1. OUTDOOR UNIT WIRING DIAGRAM OF OUTDOOR UNIT 0010510468 MAGNETIC B CAPACITOR 25 gt 2 Bs 2 MOTOR BR gt 2 5 ec W all Sg ES B 5 W R W G 1 2 3 4 5 6 7 Grounding line L2 N 3 L1 L TO INDOOR UNIT ER Y G YELLOW GREEN R RED BL BLUE Y YELLOW B BLACK BR BROWN Note Because of the difference of compressor W WHITE the dotted line part may not exist 21 m Ha ler air conditioner Edition 10070808 7 Thermistor resistance chart Room temperature sensor ioc 47 58 4c 9 96 zC 2 705 40 93 sm m H a ler air conditioner Edition 10070808 Indoor pipe temperature sensor 78 290 12 C 17 59 42C 5 09 72C 1 793 20C 87 42 10C 19 26 40C 5 492 70C 1 912 2 26 38 71 53 81 43 0 D2 04 3 19 6 19 5 3 12 1 12 I 0 2 44 i T 42 1 8 29 l 41 6 62 9 9 4 06 2 43 C 619 020 402 6C 41 6 24C 10 43 54C 3 283 84C 1 236 061 956 o 1 1 1 1 90 1035 E 098 4 0 C 95 Edition 10070808 air conditioner2. 1180rpm I Class of electric Shook Protection ro Compressor Manufacture Type Indoor Velocity Compressor Oil Charge 750ml Type Net Charge R410A 67 40z Refrigerant Charge if over standard pipe length 50g Noise Level dB Indoor H M L 47 46 44 47 45 44 Outdoor 60 62 Liquid Gas pipe Diameter 06 35 12 7mm Refrigerant Pipe Standard length 7m Min Max length 3 15m Net 33 6lbs Indoor Gross 4016 elg Net 116lbs Outdoor Gross 124lbs Net 8 13 16 45 15 32 12 1 8 Indoor Package 28 3 4 33 27 32 10 1 2 Dimension Net 9 13 16 40 3 8 14 1 8 Outdoor _ _ Packaae 26 3 4 32 5 8 13 15 16 left Air conditioner Edition 10070808 3 Electrical control 3 1 Basic Function Anti cold wind heat pump type When temperature of the heating pipe coil is low low fan speed or without airflow Fan speed adjustment Auto high middle low four level fan speeds Tmeswith 24hours timer on timer off on off off on When heating in high ambient temperature to protect compressor Anti freezing of the indoor unit When heating in low ambient temperature to protect system When heating in low ambient temperature to defrost for the 11 Defrosting run heat pump type High load protection heat pump type outdoor unit in order to make the system have a better efficiency Self trouble shooting Check the system trouble and give an alarm Over current protection heat pump t
3. remove the 6 screws 2 Remove the plugs the conduit plate 3 Temporarily mount the conduit tubes on the conduit plate 4 Properly connect both the power supply and inter unit wire harness to the corresponding terminals on the terminal board 5 Ground the unit in accordance local codes 6 Be sure to size each wire allowing several inches longer than the required for wiring Panel top Conduit plate 7 Use lock nuts to secure conduit tubes Plug Power supply Unit wire harness Conduit connector 17 ler air conditioner Edition 10070808 Outdoor unit Liquid Side 9 52mm 3 8 2 way valve Gas Side 4 Purging Method To use vacuum pump 2 15 88mm 5 8 3 way valve Detach the service port s cap of 3 way valve the I valve rod s cap for 2 way valve and 3 way s connect the service port into the projection of charge hose low for gaugemanifold Then connect the projection of charge hose center for gaugemanifold into vacuum pump Open the handle at low in gaugemanifold operate vacuum pump If the scale moves of gause low reach vacuum condition in a moment check 1 again Dx eee PSS Vacuumize for over 15min And check the level gauge which should read 0 1 MPa 76 cm Hg at low pressure side After the completion of vacuumizing close the handle Lo in gaugemanifold and stop the operation of the vacuum pump Check the condition of the scale
4. accumulated running time of the compressor exceeds 3 hours the continuous running time of the compressor exceeds 20 minutes indoor unit s Tp lt 38 c The continuous running time of the compressor exceeds 20 minutes the temperature of indoor coil pipe decreases 1 C every 6 minutes which lasts for more than 3 times indoor unit s Tp 38 d When the indoor unit is in the state of overload protection and the outdoor unit ceases when the rerunning time of outdoor unit exceeds10 minutes the accumulated running time of the compressor exceeds 45 minutes the continuous running time of the compressor is over 20 minutes and Tp 38 o3 Defrosting will begin 1f one of the above conditions is met Defrosting finishing condition If the defrosting time exceeds 9 for 12 models or 7 for 07 09 models minutes the original heating state will be resumed 6 Ha lef Air conditioner Edition 100070808 Note Sequence of defrosting actions 9 or 7 minutes Compressor ON min lt gt 3 2 7 Freezing prevention function Under refrigerating and dehumidifying state the air conditioner will control the outdoor fan as per the temperature Tp of the indoor coil pipe according to the following conditions Zone of return deference Compressor outdoor fan OFF after 5 minutes f Fancompressor ON 0 7 Tp C 3 2 8 3 minutes stand by time When the compressor ceases due to the sensor OFF unit On or OFF or fault it will maintain p
5. after other 3 hours it will cease MODEL PCB The SW2 select 25 OR 35 HISUTSVHT 0010403861 Ha lef Air conditioner Edition 10070808 4 Trouble shooting Before asking for service check the following first Cause orchack points The system does not restart When unit is stopped it won t restart immediately immediately until 3 minutes have elasped to protect the system e When the electric plug is pulled out and reinserted the protection circuit will work for 3 minutes to protect the air conditioner e During unit operation or at stop a swishing or gurgling noise may be heard At first 2 3 minutes after unit start this noise is more noticeable This noise is generated by refrigerant flowing in the system Normal e During unit operation a cracking noise may Performance be heard This noise is generated by the Inspection casing expanding or shrinking because of temperature changes e Should there be a big noise from air flow in unit operation air filter may be too dirty This is because the system circulates smells from the interior air such as the smell of furniture cigarettes Smells are generated Mist or steam are blown out During COOL or DRY operation indoor unit may blow out mist This is due to the sudden cooling of indoor air 5 power plug inserted Multiple Is there a power failure check fuse blown out 5 the air filter dirty
6. and hold it for 1 2min If the scale moves back in spite of tightening make flaring work again the return to the beginning of 3 Open the valve rod for the 2 way valve to an angle of anticlockwise 90 degrees After 6 seconds close the 2 way valve and make the inspection of gas leakage L4 If it does not stop gas leakage discharge whole refrigerants from the service port After flaring work again and vacuumize fill up prescribed refrigerant from the gas L cylinder ee In case of gas leakage tighten N 1 r parts of pipe connection If 7 1 leakage stops then proceed 6 Steps M 1 Detach the charge hose from the service port open 2 way oof 2 way valve and 3 way Turn the valve rod anticlockwise until hitting lightly To prevent the gas leakage turn the service port s 2 way ied cap the valve rod s cap for 2 way valve and 3 way s a little more than the point where the torque increases 3 way valve s SS XY Oey e alve rod cap 7 Valve rod cap suddenly After attaching the each caps check the gas leakage Service port cap around the caps e When connecting pipe exceeds 7 meters 23 feet 30g 1 060z refrigerant shall be added per exceeding meter Charge according to the following list 9m 30 feet
7. causing vibration where the body can be supported Place which is less affected by rain or direct sunlight and is sufficiently sufficiently ventilated Place not affected by heat or steam generated in the vicinity where Place possible to bear the unit where vibration and noise are not inlet and outlet of the unit are not disturbed increased Place possible to drain easily where piping can be connected with the Place where discharged wind and noise do not cause a nuisance outdoor unit to the neighbors Place where cold air can be spread in a room entirely Place where a distance marked gt is available as illustrated in 9 Place nearby a power receptacle with enough space around Refer the above figure to drawings Place where the distance of moer than 1m from televisions radios wireless apparatuses and fluorescent lamps can be left e In case of fixing the remote controller on a wall place where the indoor unit can receive signals when the fluorescent lamps in the room are lightened Power Source Bofore inserting power plug into receptacle check the voltage without fail The power source is the same as the corresponded name plate e Install an exclusive branch circuit of the power A receptacle shall be set up ina distance where the power cord can be reached Do not extend the cord by cutting it Selection of Pipe 9 To this unit both liquid and gas pipes shall be insulated as HSU
8. 12m 40 feet Piping length 7m 23 feet Gas pipe 015 88mm Gas pipe 15 88mm Additional amount 609 2 1207 1509 5 290z ic lef air conditioner Edition 10070808 1 Power Source Installation e The power source must be exclusively used for air conditioner Over 10A e n the case of installing an air conditioner in a moist place please install an earth leakage breaker e For installation in other places use a circuit breaker as far as possible Cutting and Flaring Work of Piping e Pipe cutting is carried out with a pipe cutter and burs must be removed e After inserting the flare nut flaring work is carried out A NENNEN Pipe diameter Size A mm Liquid side 9 5211 3 8 1 0 1 8 Gas side 15 88mm 5 8 1 2 2 0 Flare tooling die Correct Incorrect d Lean Damage of flare Crack Partial Too outside 3 On Drainage e Please install the drain hose so as to be downward slope without fail e Please don t do the drainage as shown below MEE 2 It becomes high midway The end is immersed It waves The gap with the ground There is the bad smell in water is too small from a ditch e Please pour water in the drain pan of the indoor unit and confirm that drainage is carried out surely to outdoor n case that the attached drain hose is in a room please apply heat insulation to it without fail Check for Installation and Test Run e Please kindly explain to our customers how to operate thr
9. 18VC7 HSU24VC7 they become low temperature in operation HSU18VH7 HSU24VH7 e Use optional parts for piping set or pipes covered with Liquid 1 4 6 35mm x1 32 0 8mm 9 52mm 3 8 X0 8mm equivalemt in sulation material Gas pipe 7 1 212 Tmmpx1 327 0 6mm 45 88mm 5 8 X0 8mm 13 H lef Air conditioner Edition 10070808 Indoor unit 1 Fitting of the Mounting Plate and Positioning of the Wall Hole When the mounting plate is first fixed 1 Carry out based on the neighboring pillars or lintels a proper leveling for the plate to be fixed against the wall then temporarily fasten the plate with one steel nail 2 Make sure once more the proper level of the plate by hanging a thread with a weight from the central top of the plate then fasten securely the plate with the attachment steel nail 3 Find the wall hole location A using a measuring tape Holes for fixing the mounting plate Fit the level line Amm inch Bmm inch HSU18VC7 HSU18VH7 9 2 75 HSU24VC7 HSU24VH7 150 5 9 70 2 75 When the mounting plate is fixed to side bar and lintel Fix to side bar and lintel a mounting bar Which is separately sold and then fasten the plate to the fixed mounting bar e Refer to the previous article When the mounting plate is first fixed for the position of wall hole 2 Making a Hole on the Wall and Fitting the Piping Hole Cover Make a hole of Bmm in diameter Thinkness slig
10. 2 JQIA P 12V lt 27 p 1 po re 3 P 4 S 20 2K 4 DH o 3 NEN K4 4 49s 23 2K 5 a 12 rom ES e R D od s as Cok i 7 CN12 19 O 4 SHINE m 12V OUT FA ULN2003A 1 2 TON 12V 25
11. E left Air conditioner Edition 10070808 Haier Inspired living Domestic Air conditioner HSU18VH7 CAUTION e READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE e THIS MANUAL IS USED BY QUALIFIED Haief APPLIANCE e HAIER DOES NOT ASSUME ANY RESPONSIBILITY FOR PROPERTY DAMAGE OR PERSONAL INJURY FOR IMPROPER SERVICE PROCEDURES DONE BY ONE UNQUALIFIED PERSON C O Aa A O N E H C lef Air conditioner Edition 10070808 CONIENIS GENERAL INFORMATION ccccsececseeeseeeeeeeeeeeeeseeeeseeeeeeeeseeeenaes 1 POE EMP IG 49 3 ELECTRICAL CONTROLS 4 TROUBLE SHOOTING 0 ccccseeeceeeeceeeeeeeseeeeseeseneeessaeeneeeenees 10 TION 12 ors rates 20 THERMISTOR RESISTANCE 22 COMPRESSOR PERFORMANCE 24 SCHEMATIC DIAGRAM OF PCB eene 29 E H lef Air conditioner Edition 10070808 1 General information This Service Manual describes the operation disassembly troubleshooting and repair of Haier Room Air Conditioners etc It is intended for use by authorized services who troubleshoot and repair these units It is assumed that users of this manual are familiar with the use of tools and equipment used to tro
12. Maier 8 COMPRESSOR PERFORMANCE DIAGRAM HSU18VH7 uff it ood n TT 100 001 UN LU bbb _ AA AOT AAA A TT LL LLL A LUE LL dp ibl jl CUZ ALTA AAC I 1 HF 2100 1900 1700 1500 LENT 1300 a S E E S S a 60 55 5 7 5 6 5 Me ud amm 6000 5500 S000 500 4000 5900 ALOT S000 2900 24 u Haief rcondtoner Eation 10070808 SCHEMATIC DIAGRAM OF PCB CIRCUIT DIAGRAM 5 a CN5 CN3 CN20 5 DOOR S R71 10K R92 10 yrp2g5 1 SW cw 45 1 o 10M 8 OOMHz gt C27 102 R76 6 L E16 R74 10K 1 7 E 1E ze uw n R32 100UF 25V 1 C29 1 ae 22K i RST PTC2 MCLK 4 I PTFO TACH2 PTCI 2M 102 PTF1 TACH3 PTCO p 7 PTF2 TBCH2 05 1 g PTF3 TBCH3 0SC2 0 PTF4 TBCHO CGMXFC A NC VSSA C24 VR Ww C31 rs ho 5 T 5 TBCHI VREFH 104 102 oscoil2 NUN 104 3 7 PIDS TILK 2 PTE2 TACHO PTD4 TBCL 9 PTE3 TACHI PTH1 KBD4 R94 lt 17 2 3181 PTE PTHO KBD3 10K P
13. Normally it should be cleaned every 15 days e Are there any obstacles before intel and outlet e 15 temperature set correctly e Are there some doors or windows left open e 15 there any direct sunlight through the window during the cooling operation Use curtain e Are there too much heat sources or too many people in the room during cooling operation 10 a H C lef Air conditioner Edition 10070808 Table for Wrong Codes Wrong express Ways means solutions tools power timing operating indoor ambient Check the sensor of indoor ambient temperature temperature if the resistance value 15 sensor see the following flow chart Multimeter the sensor is abnormal abnormal Check the sensor of indoor coilpipe Lu i m Af the resistance value is 0 or see the following flow chart 1 Multimeter co the sensor is abnormal abnormal Indoor fan Check whether indoor PCB or motor motor don t see the following flow chart 2 Multimeter is abnormal feed back Data error or no Check whether the EEPROM is EEPROM installed proper Change the indoor PCB flash M off chart 1 SENSOR MALFUNCTIONS Firstly check whether Terminal CN8 on the indoor mainboard contact well or not Pull out the terminals on the indoor mainboard and reinsert them YES Pull the sensor out of the mainboard 1 measure the value of resistance between its t
14. TES MISO TD3 PTE6 MOSI PTD2 PTET SPSCK VSS VREFL VSS VDDAREF 5V 1 PTDI PTGO KBDO PTDO PTGL KBDI PTB7 ATD7 1 2 PTG2 KBD2 PTB6 ATD6 m oT RE 1 vss 5 m P TB5 ATDS A2 5 14 PIAA 5 1 PTA2 PTB3 ATD3 as Y 1 TEST up as SW3 aye PTB2 ATD2 os PTAA 1 1 24001A TAS PTBO ATDO un TAG PTAT 1851270 i MC908AB32 CFUE s 4 TUF 50v EY E m 8 CNB a 1 2 E a 127 4 TUF 50V 3 a 4 T 6 5 4 3 2 C3 1 0 1UF 275VAC 300v CN2 C9 104 TLP421 e A057R A057 T ATOUE 25V E21 4 TUF 50V NTC D8 FR102 e BOVAC XTY 15V 0 luF 275VAC C7 L 05 o 2 18V 0 5W 6 4 5 BCK 6 FE1901 CN4 182271 C8 1 222 250VAC X1 1 S14K350 550NR 14D N D10 12V IC7 5 Dus C10 C13 C1 o g 1000UF 25V 9 100UF 25V T premer 3 5 1008 50 Pa D13 753 3865 30 1 R64 330 12V 0 5W E RES 20 R67 330 les Ru 330 i IC9 TLP421 R11 102 5 ue 15 6 7 4 TUF 50V J 100UF 25V LED BOARD r ae 12V CN17 1 NI e 2502412 K2 juo PPL a 7M 14 TW CN18 1 15 IN4148 GAA 1A E 12VDC CONE 1 6 FUSE 29 ye 12V 3 15A250VAC c 38 ms ak 12 j MN R22 2K 3 DH o 14
15. ause for 3 minutes 3 2 9 Overload protection during heating running Temperature protection of indoor coil pipe Under heating state the air conditioner will control the running of the fan as per the temperature Tp of the indoor coil pipe and according to the following conditions 58 CSTp outdoor fan ceases Tp lt 54C outdoor fan resumes the time from ceasing to resuming 1s about 45 seconds 68 C X Tp outdoor fan of compressor ceases after 5 seconds Tp lt 47C compressor resumes after 3 minutes Current protection different models have different protection currents When 13 0A current of compressor outdoor fan cease current of compressor lt 11 7A outdoor fan resume 3 2 10 Compensatory function of power failure If the unit is suddenly off during running due to power failure or closed for maintenance or troubleshooting it will restart to run after the power resumes with the original condition before the unit 1s off Note a Function setting Pressing the SLEEP button on the remote control unit for 10 times until hearing 4 sounds from the buzzer on the panel b Memory content Running mode setting wind speed setting Ape Ha left Air conditioner Edition 10070808 temperature sleep state flap state C Cancellation of function Pressing the SLEEP button on the remote control unit for 10 times until hearing 2 sounds from the buzzer on the panel 3 2 11 Trial run function When the air conditioner is in OFF state
16. be used as current carrying conductors The standard accepted color coding for ground wires is green or green with a yellow stripe Electrical components such as the compressor and fan motor are grounded through an individual wire attached to the electrical component and to another part of the air conditioner Grounding wires should not to be removed from individual components while servicing unless the component is to be removed and replaced It is extremely important to replace all removed grounding wires before completing service B H lef Air conditioner Edition 10070808 MODEL HSU18VH7 Product Features TEMP SIGNAL SENDING e FAN SPEED e SLEEP HEALTH ov mu Pater T iii TT SI Hit Main Specification Cooling Capacity 18000 17800 BTU Rated Power Current cooling 1580 1560W 7 7 5A SEER 13 0 13 0 Heating Capacity 18000 18000 BTU Rated Power Current heating 1520 1480W 6 7 7 2A HSPF 7 7 7 7 Air Volume 500 CFM Power 1PH 230 208V 60Hz m H C lef Air conditioner Edition 10070808 2 specification HSU18VH7 1 PH 230 208V 60Hz Climate Type Cooling Capacity 18000 17800 BTU Rated Power Current 1580 1560W 7 7 5A Cooling Max Power Current SEER 13 0 13 0 Heating Capacity 18000 18000 BTU Rated Power Current 1520 1480W 6 7 7 2A Heating Max Power Current HSPF 7 7 7 7 1350rpm 1260rpm 1180rpm
17. dification 3 2 3 1 Tr Ts 2 C compressor outdoor fan run continuously indoor fan runs as per setting wind speed State 1 3 2 3 2 Ts 2 C 2 2 Ts compressor outdoor fan run intermittently with 10 minutes ON 6 minutes OFF Compressor and outdoor fan are synchronous indoor fan runs in fixed lower wind speed and will cease at the stand by time of 3 minutes State 2 3 2 3 3 Tr TS compressor outdoor fan ceases indoor fan runs in lower wind speed State 3 Ha ier Air conditioner Edition 10070808 State 1 State2 State3 Ts 1 Ts Ts 2 Tst 3 3 2 4 Warm start preventing cold wind when heating running begins applicable to fan coil model When heating running begins indoor fan will conduct the following fan control If the temperature of indoor coil pipe is 2 23 C start lower wind speed If the temperature of indoor coil pipe is 38 C or the running time of compressor 4 minutes turn to setting wind speed 3 2 5 Control of indoor fan under heating OFF state applicable to fan coil model Under heating state the compressor will cease if the indoor coil pipe s temperature Tp 223 indoor fan will run in lower wind speed 3 2 6 Defrosting control applicable to fan coil model Defrosting beginning condition a After the state of lt 16 is continued for 5 minutes the accumulated running time of the compressor exceeds 45 minutes the continuous running time of the compressor exceeds 20 minutes b The
18. e back side of the unit then pull it out on the front side e Fasten the unit wire harness to the conduit holder using the lock nut igr e Position the Conduit holder to its original state using screw NI unit wire Lock nut harness Note When connecting the cord confirm the total number of indoor and outdoor units Conduit holder Cut the 6 slit sear HSU18VC7 HSU18VH7 FOr LiSU24VC7 SU24VH7 Grounding line ina li eee gt O Grounding line ee ee Power supply Power supply Indoor unit Outdoor unit Indoor unit Outdoor unit Connecting wiring AWG12X5 Connecting wiring AWG12X4 AWG18X2 Power Cable AWG12X3 Power Cable AWG12X3 16 Ha lef air conditioner Edition 10070808 Outdoor unit 1 Installation of Outdoor Unit Install according to Drawing for the installation of indoor and outdoor units Connection of Pipes e Apply refrigerant oil on half union and flare nut e o bend a pipe give the roundness as large as possible not to crush the pipe e Connecting the pipe of gas side first makes working easier Half union Flare nut Forced fastening without careful centering ay damage the CERO theads and cause a leakage of gas Pipe Diameter 2 Fastening Torque Spanner Torque Wrench Liquid Side 1 4 6 35mm Gas Side 1 2 12 7mm 50N m Be careful that foreign matters such as wastes of mands etc shall not enter the pipe 3 Connection 1 To take off the panel top
19. htly descending to outside the wall Bim of wall nstall piping hole cover and seal it off with putty sfter installation Section of wall hole Piping hole pipe 14 left Air conditioner Edition 10070808 Indoor unit 3 Installation of the Indoor Unit Drawing of pipe Rear piping e Draw pipes and the drain hose then fasten them with the adhesivs tape Left Left rear piping e Incase of left side piping cut away with a nipper the lid for left piping e 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 1 Insert the drain hose into the dent of heat insulation materials of indoor unit 2 Insert the indoor outdoor electric cord from backside of indoor unit and pull it out on the front side then connect them 3 Coat the flaring seal face with refrigerant oil and connect pipes Cover the connection part with heat insulation materials closely and make sure fixing with adhesive tape Piping Heat insulation material Pipe supporting lat Indoor Outdoor Electric cable Lid for right pipi Q 2 ue Q Lid for under piping uA Re Fix with adhesive tape e ndoor outdoor electric and drain hose must be bound with refrigerant piping by protecting tape Other direction piping e Cut away with a nipper the lid for piping according to the
20. ough th instruction manual Check Items for Test Run C Put check mark J in boxes Gas leaks from pipe connecting Is drainage securely carried out 0 Is the lamp normally lightening 1 Heat insulation of pipe connecting Is the earth line securely connected Are cooling and heating When Are the connecting wirings of indoor J Is the indoor unit securely fixed in heatpump performed normally and outdoor firmly inserted to the Is power source voltage abided 015 the operation of room temperature terminal block the code regulator normal 115 the connecting wiring of indoor Is there any noise and outdoor firmly fixed 19 Haier air conditioner Edition 10070808 6 WIRING DIAGRAM INDOOR UNIT CN4 z FUSE T315A250VAC NOTING DOTTED LINE 2 THE DASHED UNIT IS OPTIONAL UNIT 1 ONLY COOLING TYPE DOESN T HAVE THE WIRING DIAGRAM OF INDOOR UNIT LOUVER MOTOR FAN MOTOR ML CONTROLLER tas H Mt nin H CN3 ae 1 1 2 13 45 WiWiWiWiw BENE TO OUTDOOR UNIT ROOM TEMP THERMISTOR O PIPING TEMP THERMISTOR SWI CN8 CN9 0010551709 R RED W WHITE B BLACK BL BLUE BR BROWN 20 Haier air conditioner Edition 10070808
21. piping direction and then bend the pipe according to the position of wall hole When bending be careful notto crash pipes e Connect beforehand the indoor outdoor electric cable and then pull out the connected to the heat insulation of connecting part specially Fixing the indoor unit body e Hang surely the unit body onto the upper notches of the mounting plate Move the body from side to verify its secure fixing order to fix the body onto the mounting plate hold up the body aslant P from the underside and then put it down perpendicularly i 4 Connecting the indoor outdoor Elcetric Cable Removing the wiring cover 15 Ha ler air conditioner Edition 10070808 Indoor unit 1 Remove the front panel Release the hooks Hold this concave section and pull the bottom forward to remove the Screw caps CQ Remove the screw caps 2 Remove three or four screws 6 Pull the bottom 2 Remove the electrical cover D Remove two screws electrical cover ts AS When connecting the cable after installing the indoor unit N X REN 1 Insert from outside the room cord into left side of the NN wall hole in which the pipe has already existed 2 Pull out the cord on the front side and connect the cable making a loop for easy connection later When connecting the cord before installing the indoor unit nsert the cord from th
22. press the emergency switch for 5 seconds till hearing 2 sounds of click from the buzzer then the air conditioner will turn to the trial run state The unit will run in the refrigerating mode and the indoor fan will run in high wind speed mode 3 2 12 Emergency running mode When the air conditioner is in stand by state press the emergency switch till hearing a sound from the buzzer then the air conditioner will turn to the emergency run state The rules of emergency run are as follows a Tr 23 running refrigerating mode Ts 26 b Trx23 running heating mode Ts 23 3 2 13 Temperature compensation There 1s the function of automatic temperature compensation when heating with heating temperature setting Ts remote setting 4 3 2 14 Sleeping function a After setting the sleeping function the refrigerating mode and dehumidification mode will run as per the following rules 6hours Ts Sleep OFF t hour b After setting the sleeping function the heating mode will run as per the following rules TCC Ts 3hours 3hours As shown in the above diagram after running for 1 hour under refrigerating mode and dehumidification mode the setting temperature will increase 1C after 8 Ha Air conditioner Edition 10070808 running for 1 hour under heating mode the setting temperature will decrease 2 C after another 1 hour it will decrease the 2 C again and after 3 hours it will increase 1 C and
23. tional parts for piping Noneadhesive tape Saddle L S with screws i Connecting electric cable Mounting plate for indoor and outdoor 1 2 1 P Drain hose 1 Heat insulating material 6 4 Attention must be paid to the rising up of drain hose Piping hole cover Main pipes D4X50 Steel nail cement gt 4x25 Plastic cap Screw Cover n 4 Arrangement of piping directions Cushion Rear left 17 7 X The marks from toG in the figure are the parts numbers X The distance between the indoor unit and the floor should be more than 2m 12 Haier Air conditioner Edition 10070808 HSU18VC7 HSU24VC7 HSU18VH7 HSU24VH7 13 3 8 340 4 15 32 113 5 4 15 32 113 5 25 635 1 4 15 32 113 5 r _ _ uJ Uns 4 15 32 113 5 22 15 16 583 Ts Floor fixing dimensions of the Floor fixing dimensions of the outdoor unit outdoor unit Unit inch mm Unit inch mm e Fix the unit to concrete or block with bolts g10mm and nuts firmly and horizontally Fixing of outdoor unit e When fitting the unit to wall surface roof or rooftop fix a supporter surely with nails or wires in consideration of earthquake and strong wind e If vibration may affect the house fix the unit by attaching a vibration proof mat Indoor Unit EEY Y Outdoor Unit Place robust not
24. ubleshoot and repair electrical mechanical and refrigeration systems and understand the terminology used to describe and discuss them Haier urges you read and follow all safety precautions and warnings contained in this manual Failure to comply with safety information may result in severe personal injury or death Related Publications This is a base service manual covering a range of similar models It is intended to be used in conjunction with the Parts Manual and Technical Sheet covering specific model being serviced NOTE General Precautions and Warnings WARNING To avoid risk of personal injury or death due to electrical shock disconnect electrical power to unit before attempting to service the unit NWARNING To avoid risk of personal injury or death due to electrical shock DO NOT under any circumstances alter the grounding plug Air conditioner must be grounded at all times Do not remove warning tag from power cord If a two prong non grounding wall receptacle is encountered contact a qualified electrician and have the receptacle replaced with a properly grounder wall receptacle in accordance with the National Electrical Code NWARNING To avoid risk of heat exposure which may cause death or severe illness air conditioner must be monitored when malfunctions or shuts down Z WARNING To avoid risk of personal injury or death due to electrical shock grounding wires and wires colored like grounding wires are NOT to
25. wo jumpers YES 2 measure the temperature at the room temperature sensing head Replace with new sensor Check the specifications of the sensor to decide whether the sensor is damaged or not NO YES The Indoor PCB is broken Replace with new indoor PCB chart 2 Indoor fan motor malfunction YES Check whether Terminal CN2 on the indoor mainboard is well inserted or not Pull out and reinsert the terminals Electrify the machine again and turn it on in the Cool state with the remote controller YES Measure the voltage between 1 and 4 of Terminal CN2 about DC150 380V Measure the voltage between 5 and 4 of Terminal CN2 on the indoor mainboard about DC13 16 5V Measure the voltage between 7 and 4 of Terminal CN2 about 1 6 5v the motor of the indoor unit is damaged and needs replacing the PCB ofthe indoor unit is damaged and needs replacing 11 u Ha lef Air conditioner Edition 10070808 5 Installation e Read this manual before installation e Explain sufficiently the operating means to the user according to this manual 1 Driver 5 Spanner 14 17 19 and 24mm 9 Knife 12 Measuring tape 2 Hacksaw 6 Torque wrench 17mm 22mm 24mm 10 Nipper 13 Reamer 3 Hole core drill 7 Pipe cutter 11 Gas leakage detector or 4 Hexagon wrench 5mm 8 Flaring tool soapeandewater solution Drawing for the installation of indoor and outdoor units The appearance is different by models Accessory parts Number of articles Op
26. ype When working in high power to protect system Ha lef Air conditioner Edition 10070808 3 2 Introduction to electrical control functions Including brief introduction to air conditioners of series models and electric control function Brief introduction to electric control function 3 2 1 Automatic running applicable to fan coil model When the running mode is turned to automation after starting the system the system will first determine the running mode according to the current room temperature and then will run according to the determined mode Tr in the following selection conditions means room temperature Ts means setting temperature Tp means temperature of indoor coil pipe Tr223 C running refrigerating mode Ts 26C b Tr lt 23 C running heating mode Ts 23 C After turning to the automation mode the running mode can be switched between refrigerating mode fan mode and heating mode according to the change of the indoor ambient temperature But the automatic conversion between refrigerating mode and heating mode must be conducted after 15 minutes 3 2 2 Indoor temperature control Compressor OFF Heating Compressor ON Heming 1 1 Compressor OFF Refrigerating Setting temperature Setting temperature Compressor ON 3 2 3 Dehumidification running The compressor outdoor fan and indoor fan will run as per the following working pattern so as to realize the refrigerating running of dehumi
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