Commercial Air Conditioning SERVICE MANUAL
Contents
1. 4 way valve coil sensor switch OFF Refrigerant flow in cooling Comp ON Refrigerant flow in heating b Discharge temp i A sensor i oi PR Accumulator separator Capillary tube _ Unit A gas pipe temp sensor p2 7 p1 0 55in Indoor unit A Hi igh pressure Unit B gas pipe temp sensor switch Indoor Ind itB EFA Fast ndoor unit Gas Stop valve ZX 4 way valve 7 sensor exchanger _ Unit C gas pipe temp sensor temp Indoor unit C 5 8 nam sensor 27 un Unit D gas pipe temp sensor a FAN OUT od 2 Indoor unit D 1 E FANN O 0 temp 9 dbi ili sensor B JE BINE Outdoor Indoor 2000 ambient ambient Prt di temp temp 11 sensor sensor 557 Defrost Unit A liquid pipe temp sensor strainer EEVA Sensor Indoor unit A lt CD TA E PEE Distributor Unit B liquid pipe temp sensor strainer m Indoor unit B lt EM 04 Liquid stop vavle EU nam Unit C liquid pipe temp sensor strainer EEVC S 2 ui Indoor unit C IS p cavar 77 A ovu 77 Check valve Unit D liquid pipe temp sensor strainer Indoor u2. Herein C TA lt 32 F 0 8 TA232 F C 0 6 According to SW5 2 the setting is as follow in the place easy to frost it is H when out of factory it is M M out of factory b Defrosting entering condition 5 FSCxTA as28 4 F c Stop and Pause condition of compressor running accumulative time in heating mode Checking Stop running operation changes from heating to cooling Checking Pause thermostat OFF or the unit stops Cancel condition It will take the max 10 minutes from beginning defrosting to quit it Te sensor will measure the condition of outdoor heat exchanger if the temp is over 44 6 F for 60 seconds in all or is up to 53 6 F for 30 seconds in all the defrosting will be over 9 2 5Compulsory defrosting control Enter condition in heating mode after receiving the compulsory defrosting signal from indoor unit the unit will perform the compulsory defrosting operation Cancel condition Te253 6 F and keep for 1 minute or the defrosting time is over 10 minutes The manual defrosting signal of indoor unit will remain until the outdoor enters defrosting mode Note When outdoor compressor nat running the unti still can enter manual defrosting but it will comply with the 3 minute protection of compressor 32 Haier 9 2 6 Defrosting operation flow chart beginning end fiked freguency indicated FOY 60s defrosting FQY 80 Hz E 605 soft startup compressor OHZ PI
3. 2 f drain work is necessary follow the procedures below 2 Drain work 1 Use drain plug for drainage 2 If the drain port is covered by a mounting base or floor surface place additional foot bases of at least 1 1 6in 30mm in height under the outdoor unit s feet 3 In cold areas do not use a drain hose with the outdoor unit Otherwise drain water may freeze impairing heating performance 3U24GS1ERE 4U36HS1ERE Drain elbow 19 Haier Refrigerant piping work 3 Refrigerant piping work 1 Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand Then tighten them fully with the tor wrenches Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas Flare nut fightening torque Flare nut for 1 4 6 35mm 126 1521b in 14 2 17 2N m Coat here vvith refrigeration oil Torque spanner Flare nut for 3 8 9 52mm 289 353lb in 32 7 39 9N m Z Flare nut for 5 1 2 12 7mm 438 534lb in 49 5 60 3N m Flare nut for D 5 8 15 88mm 547 667lb in 61 8 75 4N m Valve cap tightening torque Service port cap tightening torque Pipe joint Liquid pipe 235 286lb in 26 5 32 3N m ipe join 96 130lb in 10 8 14 7N m Conec Gas pipe 426 528lb in 48 1 59 7N m 2 To prevent gas leakage apply refrigeration oil on both inner and outer
4. 600 Minimum power input po wo 5500 50 Maximum capacity BU 2500 3000 Maximum power input indoor outdoor J w 3100 3100 Powersouce PH 208 230V 60HZ 08 CompMode BOO O charge and type RR As Compressor Te P Typex Number J Aa Fan 5 2 g Heatexchanger row 9 in2 m about 5 6 0 52 Dimension WxDxH in mm 39 6 16 7 32 1005 423 815 Refrigerant control method PMs Defrosting method 6060600880 Automatic by reversible cycle pe ES in mm 3 01 4 6 35 Connecting method aed 32 8ft 10m ft m Between I D amp O D SOft 15m indoor unit lower than outdoor unit 50ft 15m indoor unit higher than outdoor unit Max Drop between indoor units ft m 14 115 10 46 5 75 15 24 1 above performance data are from the combination of 3U24GS1ERE 3 HSU109VHG G 2 Large drop and long piping installation will obviously reduce the total capacity Haier Function 9g Rating capacity Rated power input Indoor outdoor Rated current input indoor outdoor EER su 94122 SEER HSPF BTUW 155 9 Minimum capacity Minimum power input Maximum capacity Powrsome ai ez Mede Manadue TNE2OFLHM Ol charge and type B OCC FVBOS O Compressor we 0 O Tun Rotary DC inventen wer Typ
5. Haier Co 32002 806 4560 ur sss 2138 204 158 30143 sa ass mo sev 256 z ma 2er80 ss ss we as m z 269 14402 m s 2458 1724 m 29 s r me ie n za sm 01 mo se as wm 202 a J Ces s 4 2 35 1
6. outdoor motor ON send defrosting signal to indoor Auto OFF 4 way valve ON m Bu 450 pulse 1450 pulse 350 pulse E all EEVs auto open angle uto open angle all indoor motors ON t OFF anti cold air function Ii LI po 33 Haier 9 2 7 Frequency control when compressor discharge temp Td is too high Purpose make compressor frequency control if the discharging temp is too high to lower the discharging temp efficiently and ensure the system can run normally If keeping for 10s the unit stops 3 minutes later the unit can re startup If in 60 minutesthe unit occurs alarm for 3 times the failure can be eliminated 248 F g Reduce FQY rapidly 2HZ S T 239 F E Reduce FQY rapidly 1HZ S 230F E Reduce FQY slowly 1HZ 10S Q 221F Remain FQY Increase FQY slowly 1HZ 10S 34 Haier 9 2 8 Frequency control when there is CT over current protection 1 0 I wa ER FER E 9 2 9 High pressure protection Stop immediately if abnormal stop 3 times in 1 hour the unit will stop and alarm Reduce FQY rapidly 2HZ S Reduce FQY rapidly 1HZ S Reduce FQY slowly 1HZ 10S Remain FQY Increase FQY slowly 1HZ 10S When the input signal of pressure switch is high level 1 that shows there is no protection When the input signal of pressure switch is low level O for 1 minute that shows high pressure protection works At this time
7. x e e m E m m a wee Pari eni TL E I FE ee rm m V aa uu TT a TTENTET MAMA EN 27 Power module 0150400908 gt II at ll Power module 0150400643 28 4 4 an gt 42 4 2 m 4 N A 2 TA m me N N 4 4 WA di 1 1 _ 4 b WIND RE Re Filter board 0150400699 29 Haier Dip switch setting Outdoor main PCB 0151800075 dip switch setting SW5 definition 1 2 4 6 18 Decripton ON febo Cooling only 6666000 pump default ooo set ON if frost easily set OFF if hard to frost default 1 Max running current is 15A OFF Normal control default OFF ON OFF 3 24 ON OFF ON f 143460 p opor rc JON temperature correction valid temperature correction null default b poo rc JON QQuietopertinvalid e pr 1 jOFF jQuieto poperationeration vaild default SVV6 outdoor central control address setting A x SVV7 pre set dip svvitch Small service PCB 0151800076 dip svvitch setting SVV1 definition ON lorF OFF OFF Compulsive heating 50Hz outdoor motor 5 class standard open angle 200 the others are normal OFF ON
8. 553 4 6102 8142 LIN cOLW 62 LOL V ENO COL 4 O NO O1 u ScNO y d31 SNO de et lane COLI LENO L L 92 LINN TOHLNOD ETES No OINONHIO3T13 M 9849Srv cl VECL UMS EMS ZMS LMS IND m voue ovAosc SABA l l l l e e IT n 3804 sms NO 9MS NO lpoyy OL g 849Svt cl uem uw 9v NO OPA GON9 9AdsA DA LMS d Sd Vd 9d N Zd l 8NOD cz 6NOD OVAOSC VGCL 0000 JOJDeay E VVVVVVN D IVA AY SVO Wy soon INDOOR Power Supply 1PH 208 230V 60Hz INDOOR Central Controller 1PH 208 230V 60Hz Power Supply Indoor Unit D ku ASS QD NS Indoor Unit C 77 77 Indoor Unit C SRE x SS SS 2 Indoor Unit B 2 Indoor Unit B WWW Z Uys f Connecting Cable 14AWG Connecting Cable 14AWG Connect the connecting wires between indoor and outdoor units and ensure the sequence numbers on terminals match with each other Indoor Unit A i E amp Power Supply Cable 10AWG N lt 5 it N o N 6 n Hn 2 S 9 c C u 2 EH O x LLI LW D i o TIO o CN 2 2 HH D ceo 3 a Ns ash 5 0 0 0 see t a s 6 2 m A 1 LE v 1 4 W f 5 Refrigerant diagram Joynquasiq JOSUSS dus 1soJjeq Josues dwo jueiquue
9. compressor stops outdoor will send the alarm signal The alarm can be resumable If in 60 minutes the failure occurs 3 times the failure can be confirmed and send failure code to indoor Meanwhiel by controling the max condensating temp Tc cooling or module temp sensor TmAVE please confirm as follow In nominal cooling dry heating mode high pressure can be controlled by limiting the max frequency 156 F 154 F Condensina temp 140 F 9 2 10 Low pressure protection Multi 144 F pf Remain FQY Keep for 5 seconds stop to alarm after 3 minute standby the unit can restartup In 60 minutes it occurs 3 times continously unit will stop to alarm and the failure can be resumed after being electrified again Reduce FQY rapidly 2HZ S Reduce FQY rapidly 1HZ S Reduce FQY slowly 1HZ 10S acrease FOY slowly 1HZ 10S 1 When compressor is running if output signal of low pressure switch is low level O for 1 minute continously compressor will stop outdoor alarms The alarm can be resumable If in 60 minutes the failure occurs 3 times the failure can be confirmed and send failure code to indoor 2 When compressor no running if output signal of low pressure switch is low level 0 for 30 seconds continously alarm will occur 35 Haier When unit stops the reason thatsystem still checks the low pressure in a long time stop make protection for the compressor on the condition of great refrigeran
10. a filter dryer 5 The drying material may dissolve and damage the system 6 A bad flare may cause refrigerant gas to leak 22 Haier Pump Down Operation In order to protect the environment be sure to pump down when relocating or disposing of the unit 1 2 3 4 O Remove the valve caps from liquid stop valve and gas stop valve Carry out forced cooling operation After five to ten minutes close the liquid stop valve with a hexagonal wrench After two to three minutes close the gas stop vaile and stop forced cooling peration liquid stop valve Hexagonal Gas stop valve Wiring work Electric wiring The air conditioner must use special circuit and wiring by the qualified electrician according to the wiring rules specified in national standard The grounding wire and the neutral wire shall be strictly separated Connect the neutral wire with grounding wire is incorrect The electric leakage breaker must be installed All the electric wire must be copper wire Power supply 1PH 208 230V 60Hz The wiring method of power line is Y connection If the power line is damaged in order to avoid risk of electric shock it must be replaced by the manufacturer or its repair center or other similar qualified person The connecting cable must be shielded Fuse T3 15A 250VAC T16A 250VAC Please check with the outdoor unit wiring diagram Please check the circuit diagram about the fuse rep
11. e After all installation is complete check to make sure that no refrigerant is leaking out The refrigerant produces a toxic gas if exposed to flames e When installing or relocating the system be sure to keep the refrigerant circuit free from substancs other than the specified refrigerant R410A such as air Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise or rupture resulting in injury e During pump down stop the compressor before removing the refrigerant piping If the compressor is still running and the stop valve is open during pump down air will be sucked in when the rcompressor is run causing abnormal pressure in the freezer cycle which will lead to breakage and even injury e Be sure to establish an earth Do not earth the unit to a utility pipe arrester or telephone earth a In complete earth may cause electrical shock or fire A high surge current from lightning or other sources may cause damage to the air conditioner e Be sure to install an earth leakage breaker Failure to install an earth leakage breaker may result in electric shocks or fire N CAUTION e Do nat install the aire conditioner in a place where there is danger of exposure to inflammable gas leakage Ifthe gas leaks and builds up around the unit it may catch fire e Establish drain piping according to the instructions of this manual Inadequate piping may cause
12. flooding e Tighten the flare nut according to the specified method such as with a torque wrench If the flare nut is tightened too hard the falre nut may crack after a long time and cause refrigerant leakage e Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals Small animals making contact with electrical parts can cause malfunctions smoke or fire Please instruct the customer to keep the area around the unit clean 14 Haier Accessories supplied with the outdoor unit No Drawing Name of parts Quantity Note 3U24GS1ERE Drainage elbow 4U36HS1ERE Rubber cushion 3U24GS1ERE 4U36HS1ERE 3U24GS1ERE Clap 4U36HS1ERE 3U24GS1ERE Adaptor 1 2 3 8 4U36HS1ERE Procedure for Selecting the Location 1 Choose a place solid enough to bear the weight and vibration of the unit where the operation noise will not be amplified 2 Choose a location vvhere the hot air discharged from the unit or the operation noise vvill not cause a nuisance to the neighbors of the user 3 Avoid places near a bedroom and the like so that the operation noise will cause no trouble 4 There must be sufficient space for carrying the unit into and out of the site 5 There must be sufficient space for air passage and no obstructions around the air inlet and the air outlet 6 The site must be free from the possibility of flammable gas leakage i
13. switch off the unit press SLEEP for about 15 seconds until the buzzer sounds 5 times on the display panel there will be digit which is indoor numbsBy this method you can check if there is repeated unit number if yes please re set the number as per the unit number setting procedure 2 Re set the unit number directly the unit with outdoor pipe A is No 1 the unit with outdoor pipe B is No 2 the unit with pipe C is No 3 Trouble 6 Indoor fan motor failure AC fan motor has not 50Hz Zero crossing detection start check if the fan no check the fan motor motor input feedback wire is no PCBis faulty connection is fixed fixed badly CN23 and replace it badly CN3 on PCB on PCB yes yes replace fan motor replace fan motor input port cut off feedback port cut off power supply and power supply and be be electrified again electrified again Trouble 7 Outdoor unit failure Check the failure code on outdoor indicator board 5 lamp 39 Haier Trouble 8 Outdoor unit alarms sensor failure start as per the wiring diagram check if no re fix the connection port sensor and between sensor and check again PCB is correct y yes check if the sensor is in open circuit or no check if the no replace sensor the connection port sensor resistor and check to PCB is in good value is correct again c
14. the danger of the unit falling or overturning fix the unit with foundation bolts or with wire or other means If the location does not have good drainage place the unit on a level mounting base or a plastic pedestal Install the outdoor unit in a level position Failure to do so may result in water leakage or accumulation 16 Haier Installation drawings of indoor and outdoor units Connection cautions connection priority between indoor and stop valve higher from down to up e when there is 1 indoor the prior stop C valve is when there are 2 indoors the prior C B DC stop valves are when there are 3 indoors the prior CBA stop valves are D C B w
15. the operation of Wiring Error Check After 3 minutes i stand by the unit starts for automatic wiring checking 1234 H Approximately 30 50minutes depends on how many units installed in the system after the unit starts the MIN on Errors of the wiring will be shown by the LEDs 1 to 5 1119 During this operation the digital number will alternately show the compressor working frequency e g 50 stands for the current running frequency and letter CH means checking After this operation if all the wiring is correct the digital number will show if there has wrong wiring the digital number will show EC error connection and also it will flashing The service monitor LEDs indicate the error of wiring as shown in the table below For details about how to read the LED display refer to the service manual If self checking is not possible check the indoor unit wiring and piping in the usual manner 3 5 OFF Unit not connected Automatic checking impossible ALL Flashing all units connect wrong ALL ON All units connect correctly Sia ON unit connect correctly atus FLASHING unit connect wrong ON FLASHING FLASHING ON FLASHING need to change the vviring manually betvveen 2 3 and 5 ON unit connect correctly ON FLASHING FLASHING ON ON 7 po 75 mo wine manually between 2 3 1 If the temperature is lower than 60 F it is impossible to test cooling with remote controller and also when the temperature is highe
16. tool Clutch type Clutch type Rigid type Wing nuttype Imperial type 0 1 51 0 0 5mm 3 16 1 16 1 0 1 5mm 1 16 1 8 1 5 2 0mm 8 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 Pipe diameter size A Incorrect 9 mm Lean Damage of flare Crack Partial Too outside Flare tooling die A Liquid side 1 4 6 35mm 3 16 11 16 0 8 1 5mm 3 8 9 52mm 3 16 11 16 1 0 1 5mm Gas side 1 2 12 7mm 1 3 16 11 16 1 0 1 5mm 9 On drainage Please install the drain hose so as to be downward slope without fail Please don t do the drainage as shown below 2 y J Less than ni ZA 2 in 5cm YA It becomes high The end is immersed It gap with the ground its There is the bad midway in water It waves too small smell from a ditch e Please pour water in the drain pan of the indoor unit and confirm that drainage is carried out serely to outdoor e n case that the attached drain hose is in a room please apply heat insulation to it without fail N WARNING 1 Do not use mineral oil on flared part 2 Prevent mineral oil from getting into the system as this would educe the lifetime of the units 3 Never use piping which has been used for previous installations Only use parts which are delivered with the unit 4 Do not install
17. 2 Liquid pipe 1 4 flared 26 35 Gas pipe 3 8 flared 9 52 Gas pipe 3 8 flared 20 385 A B C unit 1 2 flared 20 5 D unit 0 24 13 39 M 70 m 20 7 ev A unit connection par B unit connection an v C unit connection i 75 D unit connection 2 195 00 74 o Liquid pipe 1 4 flared 20 25 YA unit connection unit connection unit connection 3 Wiring diagram 3U24GS1ERE GSEVLSOSLO Teuondo si yed paysep sul Josueg duie e npo N uu p Josuas d l l BunsoJjeg L Josueg dwoj eDJeuosiq JOSseJdWOD PL JOSUSS dua 1ueiquuy EL JOSUSS duie uonong 10sseJduJo SL Josuas Buisuepuo 91 Josuas dwa Buidid 1109 11901 MO SA A Uu9949 9 UMOlg Mg SHUYM U99J9 MO I9A O A pay y anjg 1g peig g ARR z sseuppy_ 440 440 440 NO sHun a spun V Spun JOOPu OL Joopu OL ioopul o zidd LSOTCE EVO VIVAN EVE VIVAN EVO VIVAN MS SMS JO uoniuged E KEK MWY E M 5 3140 KEK XL 1S018Q au NO 330 430 110 y un H 8 M DugeJedo pajey 330 NO 440 440 Bui009 aaisindwoy 440 440 NO 440 bune H aaisindwog 440 440 440 NO BunesadQ JEWJON A1098 jo no USUM aje s 340 4340 4401440 LMS JO uonuged wee e gt m 403534 Bumu Y 1 SIND ZINO O91N2 SIND Nd end 1 E A q31 3 NAON LINN TOHLN
18. 3 4 in 20 mm from the foundation surface 2 Selecting a location for installation of the indoor units e he maxinum allowable length of refrigerant piping and the maxmum allowable height difference between the outdoor and indoor units are listed below The shorter the refrigerant piping the better the performance Connect so that the piping is as short as possible Shortest allowable length per room is 6ft 2m Outdoor unit capacity class 3U24GS1ERE 4U36HS1ERE Piping to each indoor unit Total length of piping between al lunits 82ft max 25m 197ft max 60m 82ft max 25m 227ft max 70m 3 4 in NE N 20mm 18 Haier Limitations on the installation Outdoor Unit Level difference Level 50ft max difference 15m 50ft max Level 15m difference 22 8ft max 7 5m If the outdoor unit is positioned higher than the indoor units If the outdoor unit is positioned higher than the indoor units If lower than one or more indoor units Indoor Unit Level difference Level max difference 15m 22 8ft max 7 5m Outdoor Unit If the Indoor unit is positioned higher than the outdoor units Refrigerant piping work 1 Installing outdoor unit 1 When installing the outdoor unit refer to Precautions for Selecting the Location and the Indoor Outdoor Unit Installation Drawings
19. A 1501480 Sul NO Buiuuni dn xoeq eyew Bunes do pajey 1440 ueo UlJ9 s S siy suonounjjeuu euJos t 330 NO SUOHOUNJ EW Jeyjo Jo eDeurep l s4s Ad ZHO9 ouenbeuJ 8uioo2 aaisjndwoy 440 130 136 ou exeuu ued sBumes Buoim suya Ims Jayjo jo s um s y eBueuo ON Od 340 ApnuBi s osje JIM Ajoedeo xew ay mq asiou Jamo yum un Buneiedo jeuuoN jo no uaym 9723S 440 430 14401440 Im uu9 S S SU GAS JO uonisod NO UuomuJjoq pf ef 2 L Bu diq eu 19s vogelado Jemo z eunjiej uoneorunuuuJoo 99 IIM 919 10 pepuods21109 aq jsnuJ syun JOOP NO 9 Joopul UsEMjeq S LA N 1 v 1ing sseJppe y 195 o jou peeu no jonpoJd 51 Buisn S ON ugy jo uonoung euJ Jo d l MOT ebeyuous jueJeBujes uonooejoud inss ld mo Ul S4AS Ae dsiq uonounileyy uo AAS JO uoniugeq LO JO UONounJJEU due Buisuepuoo uBip eouepunqeJeAo jueJeBujes uonooejoJud inss ld ublu uiejs S Ho UOIIMS 95 MO uiejs gS De HO uojA s 95 YBIY 4 15 Wecwol wrernuor 3S3TSH9ENP 1095 009 ae Pe 3761 09 Y86 wo0e aya sovene 3 HUN qoopul 10 Josues dwi9 edid pinbi jo UODUNJEIN nleA XEN njea pis jun 100pno Josuas dwo Bursuepuoo jo UONIUNJEIN O LO ol 0 o
20. BE uono p Sunjel Jewod Josues duiej ejnpouu jo uonounj elN CO en eA Xew y UCU sse eq p nous u Buel Buidid p nb l 630 au jeu Suns ayeu 1nq en eA pJepuejs eui sp x yy Bua Buidid 1210 ou uaym Jejeuu Jed 1ue1eBuje1 ppyz HUN qoopul 107 Josues duiej edid seb jo uonounjje N 3 un J00pUI JO Josues d l edid seb jo uonouniley q un Joopul 104 Josuas dus edid seb jo uonounj e v VOL yy 1 sn snul Wass SIU g hun J0J Josues d l edid 566 uonounlIEIy Buippy 104 apoy suoljne291d sisouBeiq uonouny elw Jojeoipu 14617 JeeuuinN ou Buisn sisoubeiq V HUN JOOPUI 104 Josues due edid seb Jo uonounj e w un soopul JOJ JOSUSS dus edid pinbi jo UONDUNJEIN 7 yun JOOPUI 104 JOSUSS dus edid pinbi jo UONDUNJEIN g Jun Joopur Joj Josues d l edid pinbi jo UONDUNHEIN V HUN JOOPUI JO JOSUSS due edid pinbi jo uonounileyy UONOUNJJEW JIN9119 199 9p jueuno 1ndui lmpoyy JUSJINDJBAO mdul sjnpoy 3 N 18J ues JossaJdWOD PEOH AO IEUL U Joopu peojlano Jeuueui Joopu uonoejep uisiuoJuou s jo sso sine Burgos eA eA em p DuiDJeuosip Jo Jo 1987 HUN Joopjnoxs4oopui U99M9Q eunjrej uoneorunuJuJo Josues dua aSBIeyosip 10sseJdujoo Jo UONDUNHEIN Josues dwa jueiquue jo uonounjje N Josues d l uonon
21. Haier 2 Dimension 3U24GS1ERE Air inlet LO i s f i Air inlet a B ce Cy ae x 1 n 152 Air outlet 1 B 00 te 00 I EE ee D B zn co o o FX 293 813 73 7 24 22 84 7 24 Air inlet C Yo 7 Air inlet m S 1 co e Air outlet 37 32 Handle Indoor and outdoor 1 7j connect wiring hole YE a 30748 Handle r mm a co 1 o i se BS 11 1 EE eo co 12 26 1 11 146 Handle Liquid pipe 1 4 flared 26 35 Gas pipe 3 8 flared 29 52 Liquid pipe 1 4 flared 26 35 Gas pipe 3 8 flared 9 5
22. Haier Commercial Air Conditioning SERVICE MANUAL milin q l H M ri M Up Contents opecification Dimension Wiring diagram Wiring connection Refrigerant diagram Limitation values on pipe instalaltion oound pressure level Instalaltion Outdoor unit PCB photo dip switch setting and function 10 Diagnostic code 11 Trouble shooting 3U24GS1ERE CO 1 O OF WN gt 4U36GS1ERE SYJS 08 2014REV B Edition 2014 08 SAN Contents o T T UU UT 1 2 DIM NSION LU OL OLU z Wing dadan bb m E EE 4 A WINGI UA bab a a 6 o inenideolan dlad al b SD 7 6 Limitation values on pipe instalaltion nnne 9 T SOUNG Pressure level naa dee a Pros E PUT d SO CUR aa 11 aM Inicie TEM TT LL Y LL T M 13 9 Outdoor unit PCB photo dip switch setting and function 26 TO TIAGO SUNG co00 ED T O 37 T TOUDE a ta dl 38 APPENDIX Sensor Resistance Tabl 5 rr a a ALAR daa aaa ADA 3 adada ds adnd d d saal 42 Haier 1 Specification Function Cooling He Rated capacity BU 2200 22600 Rated power input indoor outdoor Ww 2200 18682 Rated current input indoor outdoor A 96 86 EER BTUW 1600 SEER HSPF BTUW 160 085 80 Minmumcapacty BTU 500
23. JoopinQ 3U24GS1ERE 09 CT CHE gt lt gt gt yun Joopu 2 A44 JUPAS Josuss edid pinbi 2 Wun E Mi MPMI h lAPA 0015 pinbr DET 1 ulE S amp i C9 5 S gt g Hun 100puI O A33 9A33 josues dwa edid gun do s pinbr 5 222 29 VU ID y Hun Joopu C VA33 ULAS josues dua edid pinbi y wun i e Ae doys pinbr7 351 i J0SU8S dual m pur ZEN d 9 Josuas ib AN dual 4 Lal 6 4 y bupu x 71 i ye 2 un qoopul NENW 205 Josuas dwa ME 75 05 JoopinQo sid i seb Duun i SE 3 eb m A E gt q n Mu us nan m pee Suet Josuas dwe Behov AJLA e 7 7 i Jobueu xe TEE guun ajaen 0015 50 yeau 7 yms Joopu ANM SS __lainssoid YBIH gt V yun Joopuj i 169 0 LOL 6 Josues dWa aqm gt joyesedas edid seb y yun lAPA 0015 ser pi JOyejnuun22 y n d m 5 Josuas il yo N I dwa efjeuosiq Buneau ul Moy NO ov 408881 D dwo Buljoo gt ul Moy 3 pl bly Y 440 yams osu s Ne 0 gt 102 SALA Kem p ainssaid MOT duia uon n S Low pressure Suction temp
24. OD JINOYLOsA 13 8293T Zl VECL YMS EMS ZMS LMS vsieLowaosz Mamm MAMAN l l e l l e NO 9MS NO 8293T l 9NO ca Enn nn ZMS YSLVSH ASVOMNVYO NV4 Od f 4U36HS1ERE 9Sev 490910 81967 2 euondo s Wed peusep ay kannan pinbr1 p q e spun Joopu 10 4 S H OC Av Josuas dwe Buisuapuo a p 9 q e 291 a SHUN SHUN d SHUN V SHUN SLOGVETC edi4 seo a p 9 q e Spun Joopu JO Joopu OL JOODpU OL JOOPU OL JOOPU OL Josuas Buisuapuo a p 9 q e 191 JOSUSS dwe e npo N WL Josuas BunsoJjeq s k SA VEYEY YT Y SA rENVeWV AVrN 9 mew 24 FNeY4VrN Josuas duie efueuosiq JosseJduio2 PL E A MOMMY a M Xe Xe b E Ce X GA 4 ES e KOK 2 7 LMS 8 SMS JO uote 150g awit NO 430144014 40 Bunesado 141401 NO 1101110 anisindwod 1410 4110 NO 110 BunesH eNsinduuoo 1101110110 NO me 7 110 1101204120 LMS jo uonuyeq fp LMSE LMSIC IMSIL LAMS Josueg duie jueiquuy EL d M Y M Josuas duel 5 JOSSOIGWOZD S E 7 Josuas Sulsu puo 2 91 Josu d l l edig I09 1901 UMOJg 48 MOJA A SHUYM M O A pay Y U9819 49 nig 18 xoejg g eBuelQ ar sseppy NO NO NO No e I 1 sequeg Z SSSIPPY _ 440 440 440 NO 031002 2 lvielelv QMS Jo UoluN q JOMOd Hi gt ENT M po
25. OFF OFF Compulsive cooling 60Hz outdoor motor 7 class standard open angle 200 the others are normal O 30 Haier 9 2 Outdoor unit control 9 2 1 Outdoor frequency control A Compressor running frequency range 20 95RPS 10 2 2 Electronic expansion valve EEV control A EEV specification Max open angle 500 pulse Driving speed B Start up control In Cool Dry mode standard open angle outdoor ambient temp 268 F 250 pulse E Outdoor ambient temp lt 68 F 210 pulse E In Heat mode standard open angle outdoor ambient temp 250 F pulse E outdoor ambient temp lt 50 F 210 pulse E E In order to cooperate the compressor discharging temp over high protection the system will enlarge the EEV open angle Within 5 minutes after compressor starts up it will not modify The detecting period is 30 seconds Cooling mode Indoor modification angle 212 F discharging temp 50 it will stop until up to the max permitted opening angle 194 F lt discharging temp lt 212 F EEV hold control lt 194 F 5 degree 30seconds and reduce to 0 degree gradually Heating mode Indoor modification angle 212 F lt discharging temp 50 it will stop until up to the max permitted opening angle 212 F lt discharging temp lt 212 F the angle lt 194 F 5 degree 30seconds and reduce to O degree gradually 9 2 3 4 way valve control in heating Protection when 4 way valve can not reve
26. cting parts After inspecting all the connection and loosening then retightening thenuts reqeat steps 2 4 57 Remove covers from liquid stop valve and gas stop valve Turn the liquid stop valve s rod 90 degrees counterclockwise with a hexagonal wrench to open valve Close it after 5 seconds and check for gas leakage Using soapy water check for gas leakage from indoor unit s flare and outdoor unit s flare and valve rods After the check is complete wipe all soapy water off Disconnect charging hose from gas stop valve s service port then fully open liquid and gas stop valves Do not attempt to turn valve rodj beyond its stop Tighten valve caps and service port caps for the liquid and gas stop valves with a torque wrench at the specified torques See 3 Refrigerant piping on page 6 for details 20 Haier Refrigerant piping work 5 Refilling the refrigerant Check the type of refrigerant to be used on the machine namiplate Precautions when adding R410A Fill from the liquid pipe in liquid form It is a mixed refrigerant so adding it in gas form may cause the refrigerant composition to change preventing normal operation 1 Before filling check whether the cylinder has a siphon attached or not It should have something like liquid filling siphon attached displayed on it Filling a cylinder with an attached siphon Filling other cylinders Stand the cylinder upright w
27. ector shut check if the no replace outdoor be electrified again off and be electrified outdoor motor motor and check re check again re check has power input again 40 Haier Failure 11 Low pressure switch failure Reason 1 Too low system pressure causes that the unit stops and the compressor protection works the failure can be resumed 2 Pressure switch wire is not fixed well or in open circuit start check if the connector check if the 2 if indoor fan motor replace main between pressure no Straight lugs on no cannot startup normally no control board switch and PCB is the pressure in heating mode except and check again fixed badly or damaged switch work badly for defrost CN20 on PCB yes yes yes replace pressure switch replace pressure check if the n replace indoor connector shut off and switch connector shut indoor motor has motor and check be electrified again off and be electrified power input again re check again re check 41 Haier Appendix Sensor characteristic R77 10KQ 3 77777 1B25 50 3700K43 R77 10KQ 3 il 3U24GS1ERE WOES B25 50 3700K 3 4U36HS1ERE R77 10KQ43 R122 17K42 42 Haier R77 10K0 3 B25 50 3700K 3 es ewm ss wm ws ss ue zs Ces eur ssa em ws sm wm 29 De fae TT
28. es replace power wiring and check again no replace sensor check if 5 ae no check if sensor a d resistor value is 5507 goo correct condition yes yes replace PCB is faulty sensor and and repalce it check again check again and check again 38 check the terminal block and the power supply check if fuse is burnt yes replace the fuse and check again no PCB is faulty replace Haier Trouble 3 Communication failure between indoor and outdoor start 1 as per the wiring diagram check if NO re wiring and communication check again wiring is correct yes check ifthe if the power cable and the communication port no no PCB is faulty Communication wire are replace and connecting to the too cl itina in th indoor outdoor PCB is Misi kaama NE check again M ditas wrong commission data in open circuit yes yes 1 replace the adjust the communication distance and connection wire check again check again Trouble 4 Indoor PCB EEPROM data is wrong 1 If the failure occurs when being electri amp d for the first time that shows EEPROM 8 bit pin not fixed firmly or damaged 2 If the failure occurs when running thabhovvs EEPROM is faulty and need to be replaced Trouble 5 Indoor repeated unit number 1 Firstly query the unit number
29. ex Number alt Air flows H M L Type Diameter Heat exchanger rov A A AA Dimension External in mm 37 3 13 4 33 948 340 840 WxDxH Package in mm 41 17 39 4 1040 430 1000 Refrigerant control method PMVs Automatic by reversible cycle Defrosting method Crankcase heater power NONE Sound pressure level Weight O1 O dB A Net Shipping Ib kg 168 76 192 87 Type Charge OZ kg R410A 113 3 2 ft m 131 40 Recharge OZ ft g m 0 2 20 Liquid in mm 4 01 4 6 35 Gas in mm 3 3 8 9 52 1 01 2 12 7 Flared 2 o 2 O Refrigerant No need to recharge Connecting method Drop between IU amp OU ft m lt 24 6ft 7 5m outdoor wa than anyone indoor Piping length between IU fi m lt 32 8ft 10m Total liquid piping length lt 131ft 40m Drop between indoor units lt 3 3ft 1m Max Drop between IU amp OU Max Drop between IU amp 50ft 15m indoor unit lower than outdoor unit Between I D amp O D ft m 50ft 15m indoor unit higher than outdoor unit Max Drop between indoor ft m 16 5ft 5m Max Piping length between IU amp OU Max Total length ft m 82ft 25m ft m 22Tft 70m F CC 14 115 10 46 Heating 1 CE 5 75 15 24 1 The above performance data are from the combination of 4U36HS1ERE 4 HSU109VHG G 2 Large drop and long piping installation will obviously reduce the total capacity Cooling working temperature c o C
30. hen filling There is a siphon pipe inside so the Turn the cylinder upside down cylinder need not be upside down when filing to fill with liquid 2 Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering Au Outdoor Unit Standard total liquid Max total liquid piping 1 This system must use refrigersant R410A piping length length 2 Add refrigerant 0 21 oz per foot when the total piping length exceeds the standard value but make sure that the total liquid 3U24GS1ERE 98ft 30m 197ft 60m piping length should be less than the max value 4U36HS1ERE 131ft 40m 227ft 70m Notes 1 When using this product you need not to set the address But the L N wires between indoor amp outdoor units must be corresponded or there will be communication failure 2 Quiet Operation Setting Set the DIP 8 to ON position of SW5 the system will run with lower noise but the max capacity will also reduce slightly 3 Do not change the settings of other switchs wrong settings can make the system damage or other malfunctions 7 Precautions for Running Refrigerant Piping e Cautions on pipe handling 1 Protect the open end of the pipe against dust and moisture 2 All pipe bends should be as gentle as possible Use a pipe bender for bending Bending radius should be 1 1 4 to 1 3 4 30 to 40mm or larger e Selection of copper and heat insulation mate
31. hen there are 4 indoors the prior D CBA stop valves are Note For better oil return and more reliable system please execute as the above when connecting indoor unit 17 Haier Outdoor Unit Installation Guideline Where a wall or other obstacle is in the path of outdoor unit s intake or exhaust airflow follow the installation guidelines below For any of the below installation pattems the wall height on the exhaust side should be 47 in 1200mm or less Wall facing one side More than 2 in 50mm More than 12 in 300mm 47 in 1200mm or less Side view Wall facing two sides S More 2 N B5 p More than 12 in 1 2 N than 4 in 300mm gt S 100mm 7 N Ab N More J a Y than 4 in 7 100mm More Y Side view than 2 in 50mm Limitations on the installation 1 Precautions on installation Wall facing three sides More than 6 in 150mm lt gt More than More 2 MMMM Lf 5 5 d 50mm SN Side view e Check the strength and level of the installation ground so that unit will not cause any operating vibration or noise after installation e n accordance with the foundation drawing in fix the unit securely by means of the foundation bolts e t is best to screw in the foundation bolts unit their length are
32. laced Wiring method Wiring method of orbicular terminals e gt For the connection wire with orbicular terminals its wiring method is as shown in N the right figure remove the connecting screw put the screw through the ring on hw GS the end of the wire then connect to the terminal block and fasten screw Wiring method of straight terminals Wiring Method for Ring Terminal Block For the connection wire without orbicular terminals its wiring method is loosen the connection screw and insert the end of the connection wire completely into the Terminal block then fasten the screw Correct Pressing Wrong Pressing Slightly pull the wire outwards to confirm it is firmly held 72017 BE PER PLR am na UR FEER Crimp connection method for vvires vvithout terminals onde block 99 i El E LJ Connect the wire with Do not connect the Do not connect the VE same diameter to the wire with same diameter wire with different Pressing two sides of the terminal to the same side diameters 7 Clamps YA 7 Y ee ee O x X Crimp connection method for connection wire After connection the wire must be fastened by wire cover The wire cover shall press on the protection coat of the connection wire as shown in right top figure No
33. m yourself the dismantling of the air conditioning system treatment of the refrigerant of oil and of other part must be done by a qualified installer in accordance with relevant local and national legislation Air conditioners must be treated at a specialized treatment facility for reuse recycling and recovery By ensuring this product is disposed of correctly you will help to prevent potential negative cons equences for the environment and humen health Please contact the installer or local authority for more information Battery must be removed from the remote controller and dis posed of separately in accordance with relevant local and nation legislation IMPORTANT INFORMATION REGA RDING THE REFRIGERANT USED This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do not vent into the atmosphere Refrigerant type R410A GWP value 1975 GWP Global Warming Potential Please fill in with legible ink 1 The factory refrigerant charge of the product 2 The additional refrigerant charge of the product 1 2 the total refrigerant charge on the refrigerant charge label supplied with the product The filled out label muset be adhered in the proximity of the product charging port e g onto the inside of the stop value cover A contains fluorinated greenhouse gases covered by the Kyoto Protocol B fatory refrigerant charge of the product see unit name plate C additional refrigerant amount charged in the field D t
34. method 1 Set the unit 1 the unit is placed on therubber whose thickness is 5mm 2 if the height between the air outlet and ground is less than 1m block the unit up to 1m far from ground 2 Test position After setting the unit the tesposition for the noise is 1m far from the front panel 11 12 ZH pueg ave po p lu v N N N O7 PL D LR AGA A cU GU ow AN o SPD LE PL dq D EN HD SY A D 9 RE A LE ow WwW S S QW d PPP PP PH d d HM PP LP LM PP D dou xw Mo buneau SO A TTP OP PT GH s uS uS CN uo pau Bureau 0 0 ubiu bunesy TE MOI Ue OSL 5 007 pau ur e OSC 0102 D ublu ue pse 2 Mo a paw bulloo 009 a ubiu 2 a 7 D oso Y 0702 0 SZ 1 9 9 anssald punos ZH pueq aneyo ply 00000009 DOSZ D000 10008 00 9 000S 000 0512 0092 0007 0091 0521 0001 008 069 00S O0 SLE OSZ 002 091 SZL 001 08 69 OF SLE SC 88 CL Ar Guneay Re Ob S vy 2 gy 2 ubiu Dulloo e cS 96 X g JYALSOVCNE PAP oinssold punos Haier 8 Installation DISPOSAL REQUIREMENTS Your air conditioning product is marked with this symbol This means that electrical and electronic products shall not be mixed with unsorted household waste Do not try to dismantle the syste
35. n a nearby place Locate the unit so that the noise and the discharged hot air will not annoy the neighbors 7 Install units power cords and inter unit cables at least 10ft away from television and radio sets This is to prevent interference to images and sounds Noises may be heard even if they are more than 10ft away depending on radio wave conditions 8 In coastal areas or other places with salty atmosphere of sulfate gas corrosion may shorten the life of the air conditioner 9 Since drain flows out of the outdoor unit do not place under the unit anything which must be kept away from moisture NOTE Cannot be installed hanging from ceiling or stacked 15 Haier Installation drawings of indoor and outdoor units 1 Connect indoor and outdoor piping when installing unit Do not leave piping connected to only one unit 2 You must connect 2 units minimum Installation figure please refers to 4U36HS1ERE ele 5 9 3 RAN E P4 o Arrangement of piping directions I Rear left SS Left Y K Rear right S Y 12 M I i i Right E a Below Wrap the insulation pipe with the finishing tape Attention must be from bottom to top paid to the rising up of drain hose N Cut thermal insulation pipe to an appropriate length and wrap it with tape making sure that no gap is left in the insulation pipe s cut line Ey If there is
36. nch Size of the gas side connection pipe 0 375 ft ft ft Haier 4U36HS1ERE Dgasppe 15hmN 0551772X 3 one way ft Max piping length between IU and OU of the way L1 L2 L3 L4 Total liquid piping length h Drop between every two indoor units when the location of the outdoor unit is at one side of indoor 1s0 3 lt 2 2 units Drop between the outdoor unit and the indoor unit Drop between every two indoor units when the ft r lt 0 3 lt 4 5 location of the outdoor unit is among indoor units ft t t H Drop between the outdoor unit and the indoor unit ft when the location of outdoor unit is among the lt 1 5 lt 2 2 H indoor units Drop between the outdoor unit and the indoor unit Bm the location of outdoor unit is at one side of indoor units 10 Haier 7 Sound level 1 Testing illustration Nazan t y 2 Testing condition a Unit running in the nominal condition b Test in the semi anechoic chamber c Noise level varies from the actual factors such as room structure etc 3 Test
37. ner on a solid base that can support the unit s weight An inadequate base or incomplete installation may cause injury in the event the unit falls off the base e Electrical work should be carried out in accordance with the installation manual and the national electrical wiring rules or code of practice Insufficient capacity or incomplete electrical work may cause electrical shock or fire e Be sure to use a dedicated power circuit Never use a power supply shared by another appliance e For wiring use a cable long enough to cover the entire distance with no connection Do not use an extension cord Do not put other loads on the power supply use a dedicated power circuit Failure to do so may cause abnormal heat electric shock or fire e Use the specified types of wires for electrical connections between the indoor and outdoor units Firmly clamp the interconnectiong wires so their terminals terminals receive no external stresses Incomplete connections or clamping may cause terminal overheating or fire e After connectiong interconnecting and supply wiring be sure to shape the cables so that they do not put undue force on the electrical covers or panels Install covers over the wires Incomplete cover installation may cause terminal overheating electrical shock or fire e If any refrigerant has leaked out during the installation work ventilate the room The refrigerant produces a toxic gas if exposed to flames
38. nit D CD Q 4U36HS1ERE Haier 6 Limitation values on pipe installation 3U24GS1ERE E AAA Maximum A B C liquid pipe Size of the liquid side connection pipe ft Max piping length between IU and OU of the way 3 1 s7 6 Max piping length between IU and OU of the way s3 1 s7 6 L1 one way m Max piping length between IU and OU of the way s3 1 s7 6 ft pen a e b lt 4 5 location of the outdoor unit is among indoor units Drop between every two indoor units when the ft location of the outdoor unit is at one side of indoor lt 0 3 2 2 units H ft Drop between the outdoor unit and the indoor unit s1 51 s4 5 Drop between the outdoor unit and the indoor unit ft when the location of outdoor unit is among the 1 5 2 2 indoor units Drop between the outdoor unit and the indoor unit ft when the location of outdoor unit is at one side of lt 1 5 lt 4 5 indoor units nit inch A B C gas pipe i
39. ondition yes yes replace sensor PCB is faulty and check and repalce it again check again Trouble 9 AC current over current protection or current transducer damaged or compressor blocked rotor compressor great vibration compressor ahormal startup state detecting curcuit abnormal or compressor damaged The former twice failure can be resumed automatically if outdoor board occurs this failure always and can not be resumed for a long time that shows 1 Power module SPDU damaged please replace the power module then re wiring as per the wiring diagram 7096 possibility 2 Short circuit in power board reults in the power module damaged 15 possibility 3 Damaged compressor results in this failure 10 possibility 4 Main control board is faulty replace it 5 possibility Trouble 10 High pressure failure Reasons 1 Over high system pressure results that the unit stop and the cmpressor protection will work The failure can be resumed 2 Pressure switch wire is not fixed well or in open circuit start if outdoor fan check if the connector no Check ifthe 2 straight H merca replace main between pressure lugs on the pressure bord switch and PCB is switch are in good li y and check aqain fixed badly or damaged condition 9 yes pe yes replace pressure switch replace pressure connector shut off and switch conn
40. otal refrigerant charge E outdoor unit F refrigerant cylinder and manifold for charging 13 Haier Safety Precautions e Read these Safety Precautions carefully to ensure correct installation This manual classifies the precautions into WARNING and CAUTION e Be sure to follow all the precautions bellow they are all important for ensuring safety A WARNING Failure to follow any of WARING is likely to result in such grave consequences as death or serious injury N CAUTION Failure to follow any of CAUTION may in some cases result in grave consequences e The following safety symbols are used throughout this manual D Be sure to observe this instruction e Be sure to establish an earth connection Q Never attempt e After completing installation test the unit to check for installation errors Give the user adequate instructions conceming the use and cleaning of the unit according to the Operation Manual N WARNING e Installation should be left to the dealer or another professional Improper installation may cause water leakage electrical shock or fire e Install the air conditioner according to the instructions given in this manual Incomplete installation may cause water leakage electrical shock or fire e Be sure to use the suplied or specified installation parts Use of other parts may cause the unit to cometo lose water leakage electrical shock or fire e Install the air conditio
41. r than 80 F it is impossible to test heating 2 To test cooling set the lowest temperature at 60 F To test heating set the highest temperature at 86 F 3 Please check both cooling and heating operation of each unit individually and then also check the simultaneous operation of all indoor units 4 After ruuning the unit for about 20 minutes check the indoor unit outlet temperature 5 After the unit is stopped or working mode changed the system will not start again for about 3 minutes 6 During cooling operation frost may ocur on the indoor unit or pipes this is normal 7 Operate the unit according to the operation manual Please kindly explain to our customers how to operate through the instruction manual Test running e Seven segment numeric display 1 When unit is runing this seven segment numeric will display the frequency of compressor For ca example di means compressor running frequency is 40 Hz HH means compressor running frequency is 108Hz 2 When a fault happens seven segment numeric will flash and display some numbers this number is failure code For example a flashing 4 g means No 32 failure that is indoor and outdoor communication error e Communication LED 5 green LED means 5 indoor units If one LED keep lighting that means the corresponding indoor unit has good communication with outdoor unit If one LED is not lighting that means there is no communication between indoor and o
42. rials When using commercial copper pipes and fittings observe the following 1 Insulation material Polyethylene foam Heat transfer rate 0 035to 0 045kcal mh C 0 041 to 0 052W mk Refrigerant gas pipe s surface temperature reaches 230 F max Choose heat insulation materials that will withstand this temperature 2 Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below Gas pipe Gas pipe insulation O D 3 8 9 52mm 1 2 12 7mm D 1 2 3 5 12 15mm 1 2 12 7mm Thickness 3 95 0 8mm Thickness 1 2 13mm min Liquid pipe Liquid pipe insulation O D 1 4 6 35mm D 6 19 2 5 8 10mm Thickness 3 95 0 8mm Thickness 2 5 10mm min 21 Haier Refrigerant Piping Work 3 Use separate thermal insulation pipes for gas and liquid refrigerant pipe Inter unit wiring SEER Basiret Wall 7 place a cap Liquid pipe i Rain If no flare cap is available cover the Liquid pipe flare mouth with tape to keep dirt or water insulation insulation but m Finishing tape Drain hose Check Flare s inner The pipe end surface must b must be evenly flaw free flared in a perfect Cut exactly at right Remove burrs circle QU a ee angles Make sure that the flare nut is tight Set exactly at the position shown below JA 77 Flare tooling die Flare tool for R410A Conventional flare
43. roper contact will cause heat generation e Do not connect the power line with different dimensions to the same grounding wire end Improper contact will affect protection e Do not connect the power line to the connecting end of communication wire Incorrect connection will cause damage to the connected unit 5 Example wiring diagram Wiring diagram please refers to 4U36HS1ERE R li CEE Shape the wires so that Secure the branch wiring firmly using the 4 there is no lifting of the included screws as shown in the figure service hatch or other Secure firmly making sure no outside structural parts pressure is exerted on the terminals Use the specified wires and connect them securely pl Yoz eoot G001 24 Haier Test running e Before starting the test running please confirm the following works have been done successfully 1 Correct piping work 2 Correct wiring work 3 Correct match of indoor and outdoor unit 4 Proper recharge of refrigerant if needed e Make sure that all the stop valves are fully open e Check the voltage supplied to the outdoor and indoor units please cinfirm that is 208 230V e Wiring Error Check This product is capable of automatic checking of wiring error CIO TITO Switch on all the 4 dip switches on the outdoor unit small service PC board as shown on the right Then power cki H ON SW off the unit and power on again the system will enter
44. rse in heating 10 minutes later after compressor startup if indoor coil average temp is below 59 Fand keeps for 1 minute the unit will stop and occur the 4 way valve protection compressor ON rr 4 way valve ON OFF 15S B 2 minutes and 55s AAA 31 Haier 9 2 4 Electric heater control lf compressor has not run for a long time the refrigerant will remain on the bottom of compressor and mix with the refrigeranr oil When re startup because low pressure reduces refrigerant will be migrated from the refrigerant oil and cause foam in the oil this can cause oil be pumped out of compressor Therefore please stop heating the compressor bottom to ensure the low pressure in startup period should not go down greatly Ambient temp TAS80 6 F when compressor stops the electric heater will be electrified When TA289 6 F or compressor running the electric heater will be off OFF Ambient temp TA F 80 6 89 6 3 2 5 Control of defrosting in heating In heating mode defrosting temp sensor will check the frosting condition of outdoor heat exchanger and make defrosting control A Enter condition a In heating mode if the compressor has run for 10 minutes continously and run for 45 minutes in all the system will measure the defrosting temperature sensor Te and outdoor ambient temp sensor TA if the below condition can be met for continous 5 minutes the unit will enter defrosting operation
45. s JO uonounj elwN Josues dula BunsoJjep Jo uonounj elN JOJOU UB OQ 24 Jo uonounjje N p yoolq SAW 10 uBiu oo juerquue jueJeBujaJ Jo 3oe 7 6uneeuje o BuiDueuosiq uBiu JO moj SNPOIN pEOH AO ajnpon 103 pue anpoy usamaq anje uoneoiunuJul02 INDIO HOYS JO JUSJINIISAO Ndl WOHdI3 Jun soopino jo yney sisoubeig 4 04 04 SISONSVIG LONGOUd N e o oO WA QJ N N 9 LO N ceo ix N o N N co 0p09 UOIJ9UNJJEIN 37 Haier 11 Trouble shooting Trouble 1 No display on the operation panel replace it start check if display panel and the unit matched well no yes if the red diode and green diode no on indoor PCB flash in turn yes PCB is faulty no panel and check replace display again if the povver terminal block is no 220V input yes check if display panel is 12V power supply yes 1 display panel circuit is damaged replace it Trouble 2 Sensor failure Start as per the wiring diagram check the connection between sensor and PCB is correct yes no re fix the sensor and check again check if power wiring is in open no circuit y
46. surfaces of the flare Use refrigeration oil for R410A 4 Purging air and checking gas leakage When piping work is completed it is necessary to purge the air and check for gas leakage N WARNING 1 Do not mix any substance other than the specified refrigerant R410A into the refrigeration cycle 2 When refrigerant gas leaks occur ventilate the room as soon and as much as possible 3 R410A as well as other refrigerants should always be recovered and never be released directly into the environment 4 Use a vacuum pump for R410A exclusively Using the same vacuum pump for different refrigerents may damage the vacuun pump or the unit Pull vacuum down to 300 microns e Use a hexagonal wrench 3 19 to operate the stop valve rod e All refrigerant pipe joints should be tightened with a torque wrench at the specified tightening torque Connect projection side of charging hose Which comes from gauge manifold to gas stop valve s service port Fully open gauge manifold s low pressure valve Lo and completely close its high pressure valve Hi High pressure valve subsequently requires no operation Apply vacuum pumping Check that the compound pressure gauge reads 30 PSI Evacuation for at least 30 minutes Close gauge manifold s low pressure valve Lo and stop vacuum pump Leave as is for 4 5 minutes and make sure gauge doesn t move If it doesgo up this indicates the presence of moisture or leaking from conne
47. t leakage e The reason that low pressure switch action times 30 seconds when compressor stops low pressure does not change so it will be shorterthan the set time in operation 3 When compressor starts up in 8 minutes low pressure switch signal will be shielded 4 In defrosting low pressure switch will be shielded 5 In oil return procedure low pressure switch will be shielded 6 In the refrigerant discharging procedure after the oil return in cooling is over low pressure switch will be shielded In addition the system will control low pressurahrough the evaporator tempTE to realize the low pressure protection function In cooling confirm through Tc2AVE Normal operation T nAVE Keep for 5 seconds unit stops and alarm occurs 3 minutes later restart up f it occurs 3 times in 1 hour it will always alarm and stop electrify again and failure will be cleared Normal operation Te WA A P 31 F 40T 49T Keep for 5 seconds unit stops and alarm occurs 3 minutes later restart up f it occurs 3 times in 1 hour it vvill alvvays alarm and stop electrify again and failure vvill be cleared 58 F If the failure is not confirmed asthe permanent protetion outdoor will not send failure code to indoor and indoor will not alarm 36 f 10 Diagnostic code 3U24G51ERE 4U36HS1ERE VSEVLSOSLO OAJEA PSJEMPON ASIN AMNd HUN J04U09 CBINNON HUN JONUOD luon l n29 i PIT
48. te When connecting the wiring confirm the terminal number of indoor and outdoor units carefully Incorrect wiring will damage the controller of air conditioner or the unit can not operate 3 Wiring method of outdoor unit e Power line Remove the repair board of the outdoor unit and loosen the wire cover A then put the live wire neutral wire and grounding wire through the wire cover and connect them to terminal block correspon dingly After connection fasten wire cover to its previous state Communication wire of indoor unit e Loosen wire cover put the communication wire through the wire cover B and connect them to terminal block correspondingly After connection fasten wire cover B to its previous state Note Power line and communication wire are provided by consumers themselves 23 Haier Wiring work Wire coverA Wire cover C N N Wire cover B Terminal block ES Valve cover E E N m m x 4 Wiring method of indoor unit 5 Ri LT ununu VVire cover D VVire cover B Valve cover t Loosen wire cover and connect the power line and communication wire of indoor unit to the terminal correspondingly Note When connecting power line to power supply terminal please pay attention to the following items e Do not connect the power line with different dimensions to the same connection wire end Imp
49. utdoor 25 Haier 9 Dip switch setting outdoor unit PCB photo and function 9 1 Dip swith setting and Outdoor unit PCB photo 0151800075 3U24GS1ERE 0151800076 0150400643 0150400699 0151800075 4U36HS1ERE 0151800076 0150400908 0150400699 Dip switch setting Outdoor main PCB 0151800075 dip switch setting SW5 definition 4 5 je 7 eee E cem ee 85 5 8 Decripion jCooingony 6660008 x set ON if frost easily set OFF if hard to frost default _ Max running current is 15A x Normal control defauli x 13022 022 2O2 O ON OFF x 144946 22C2 x JON temperature correction valid OFF temperature correction null default JON Qulet operation valid 000000 ON SVV7 pre set dip svvitch Small service PCB 0151800076 dip svvitch setting SVV1 definition EE KA Definition 0U 0 OFF State when out of factory TT2 13 i O ONI OFF O OFF Compulsive heating 50Hz outdoor motor 5 class standard open angle 200 the others are normal O O others are normal mu a te F F ON OFF Rated operation ON N ofr Compulsive cooling 60Hz outdoor motor 7 class standard open angle 200 the 3 F F O 4 FF FF ON 26 SWO5 is E Wa EF LT S a NL TH DELL dl LAT AL A E
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