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1. ROOM TUBE DISPLAY L4 Bi POWER TEM SENSOR TEM SENSOR Api FA EC L CN2 L1 8 8 ee TA BU N RT 1 xn X DX W1BU BU ROOM TUBE DISP 1 DISP 2 BK _ W3BN 3 BN YEGN AC L IB L OUT JUMP K4 WAYEGN e EVAPORATOR PE PGF PG SWING UD a HEALTH HEALTH N RD BU M came RS FAN MOTOR SWING MOTOR U D PE Technical Information e Outdoor Unit 2 09 C2VO 09 Service Manual TE L SENSOR
2. KE Ru RR REA 94 Appendix 3 Pipe Expanding DUO na a 95 Appendix 4 List of Resistance for Ambient Temperature Sensor 96 e Table of contents Service Manual Part Technical Information 1 Summary Indoor Unit B2VI 09 B2VI 12 Technical Information Service Manual Outdoor Unit Remote Controller YB1FA o o Technical Information Service Manual Model ProductCode IndoorUnit ProductCode OutdoorUnit ProductCode GWH12MB K3DNC9K 145003700 12 CB145N03700 GWH12MB K3DNA3K O CB171W07700 Technical Information Service Manual 2 Specifications 2 1 Specification Sheet e Technical Information Service Manual The above data is subject to change without notice please refer to the nameplate of the unit Technical Information Service Manual Model B2VI 09 B2VO 09 C2VI 09 C2VO 09 Product Code 145003600 Rated Voltage a 220 240 Power Supply Rated Frequency M Power Power Supply Mode Mode Cooling Capacity Min Max 2700 600 3200 Heating Capacity Min Max 2800 800 3600 Cooling Power Input Min Max w ME Heating Power Input Min Max w 800020 140 Cooling Power Current 3 8 Beamer E S Rated Input maa
3. 1 inductance pin2 2 inductance pin1 four wayvalve 4 compressor electricheater 5 chassis electric heater 6 neilsbed 7 10 core communication cable 8 electric expansion valve 9 overload protection CE 1 am 10 temp sensor Us o7 e Bottom view Technical Information o o o Service Manual 6 Function and Control 20 6 1 Remote Controller Introduction Buttons on Remote Controller 960 o 69 Introduction for Icons on Display Screen TIMER ON TIMER OFF Button Set fan speed Send signal X fan mode TIMER ON TIMER OFF Child lock ON OFF Button 1 AUTO A O Sam x MODE Button gt ru Button 66 FAN Button 88 885955 AY o Button CLOCK Button GO X FAN Button a D TEMP Button TURBO Button LIGHT Button D SLEEP Button Operation mode Auto mode 4 2 Cool mode SN adama Dry mode Fan mode 4 amp nS Heat mode Lie NL LILI Naane ee ae x ar a aoo Clock_ XE S Sleep mode C SI Introduction f
4. KE Service Manual B2VI 09 B2VO 09 B2VI 12 B2VO 12 C2VI 09 C2VO 09 C2VI 12 C2VO 12 GREE ELECTRIC APPLIANCES INC OF ZHUHAI Service Manual Table of Contents Part Technical Information 1 1 5 RR 1 2 Specifications 4 2 4 2 2 Operation Characteristic Curve e nn hameau 10 2 3 Capacity Variation Ratio According to Temperature 10 2 4 Cooling and Heating Data Sheet in Rated Frequency 11 2 6 Noise CPV aa aa E KE aa Ed na a a O 11 3 Outline Dimension 12 3 1 Indoor Unit Mr remonte anatomie 12 3 2 Outdoor CARS P 12 4 Refrigerant System Diagram v 14 5 Electrical Part 15 5 1 Wining Diagram cic cca Um t 15 5 2 PCB Printed Diagram ennemi a Pu TRUE T douane 18 6 Function and 20 6 1 Remote Controller Introduction meneur 20 6 2 Brief Description of Modes and Functions aaa a eaaa a anana a aee eea n naen anae 24 Part Installation and Maintenance _ 30 T Notes for Installation and 30 8 Installation
5. Malfunction of td the outdoor mainboard AP1 mainboard Voltage higher than 200V N Measure the voltage input with AC voltmeter see fig 30 Power supply is abnormal repair the power supply to restore the range between 180VAC 260VAC Voltage within 180VAC 260VAC Power on and restart the unit Y Y Shut down the power and wait 20 minutes or use DC voltmeter to measure the voltage on the two N ends of electrolytic capacitor until the voltage is lower than 20V Check the connection of reactor and connection wire Connect the f the wiring of connection Power on and reactor L is normal N wire of reactor restart the unit b the Vmalfunction las eliminated L correctly Y mainboard AP 1 N End Installation and Maintenance Service Manual 7 IPM protection H5 desynchronizing malfunction H7 overcurrent of compressor phase current P5 below means control board of outdoor unit Main detection points Is voltage input within the normal range Heat exchange of unit is not good heat exchanger is dirty and unit radiating environment is bad If the system pressure is too high If the refrigerant charging amount is appropriate If coil resistance of compressor is normal Is compressor coil insulating to copper pipe well If the work load of unit is
6. S Right side plate side plate with the valve support and the electric box Then remove the right side plate 90 Installation and Maintenance Service Manual 6 Remove electric box assy Remove the 2 screws fixing the cover of elec tric box Lift to remove the cover Loosen the wire and disconnect the terminal Lift to re move the electric box assy 7 Remove 4 way valve assy Unscrew the fastening nut of the 4 way Valve Assy coil and remove the coil Wrap the 4 way Valve Assy with wet cotton and unsolder the 4 weld spots connecting the 4 way Valve Assy to take it out Note Refrigerant should be discharged firstly Welding process should be as quickly as possible and keep wrapping cotton wet all the time Be sure not to burn out the lead out wire of compressor 4 way Valve Assy 8 Remove capillary sub assy Unsolder weld point of capillary Sub assy 2 Capillary Sub assy valve and outlet pipe of condensator Then 5 remove the capillary Sub assy Do not block the capillary when unsoldering it Note be fore unsoldering discharge refrigerants completely Installation and Maintenance 91 Service Manual 9 Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor Pull out the lead out wire and remove the motor Remove the 2 tapping screws fix
7. 7 Rated Current A Air Flow Volume SH HIMIUSL Dehumidifying Volume 08 7 HSPF W W 3 8 Application Area m 12 18 Model of Indoor Unit B2VI 09 C2VI 09 Fan Type Diameter Length DXL Fan Motor Cooling Speed SH H M L SL Fan Motor Heating Speed SH H M L SL Output of Fan Motor Fan Motor RLA Cross flow 92 645 1260 1050 900 690 1320 1 000 910 Fan Motor Capacitor Input of Heater Evaporator Form Aluminum Fin copper Tube Pipet Diameter 7 Ed w dB ES M 915X255X355 Swing Motor Model Output of Swing Motor Fuse Sound Pressure Level SH H M L SL Sound Power Level SH H M L SL Dimension WXHXD Dimension of Carton Box LXWXH Dimension of Package LXWXH o o o Technical Information Service Manual Moderof Outdoor vooon Product Gode of Outdoor Un _ Compressor Manufacturer Trademark ZHUHAI LANDA COMPRESSOR CO LD CompesorModd O O Compressor Oil FVC 68EP C veroa Proteo NES SO Two ngMehod Elcrnexpamsonvae Operation temp 16 30 Condenser Form Fin copper Tube E Fan Motor Capacitor O Defrosting Method E J PM Sound Power Level H M L dB A 63 rwa Gas Additional Charge g m 20
8. Se i s 4 L ja KE EN RS a 8 e eea ones INN ZAR de aa 1 Eme d Eyed esee m etes a or HER INS A C p Mae 6 1 gt y i i i i i i i L 3 Z 9 N wo N y da m E Ayoedeg fe e TER Do e x 4 hob D m gt CA lt O0 2 1 mn 215 5 um E gt lt raser sise Cus 1 __ a gt Je D NEES a 5661 ms Duc trial ee 2 SEE pen 85 e c gt E e E EEEE E ee dasSse2a5 qe e le8 amp uc MENS le S Hesse ee DO ee e ne E gt Lr docu Ag opo UP E 2 1 c 1 1
9. 4 s27 m 1 4e 7 s 068 44 31 41 7 653 80 1 871 119 0 592 RC CR e SUN CE 409 4s 3515 4 em 1000 122 3532 4s amp 052 7 as 4e 85 14 050 32 94 47 6 038 86 1 544 125 0 505 e mer mum cuum Gl 4 7 os 51 s sse 128 5 19 ose 15 s 9 1322 ro om posce muka man 15 23 6 54 4 625 93 1 244 132 0 422 16 2s ss oa 5 042 as os 194 own 18 20 54 857 96 1136 135 03901 19 1963 88 110 136 0382 96 e Installation and Maintenance Service Manual Resistance Table for Indoor and Outdoor Tube Temperature Sensor 20K Resistance kQ Resistance kO Resistance kQ Resistance kQ EN Lx P 8 42 al 6 0 2 E 8 Installation and Maintenance 97 98 Resistance Table of Outdoor Discharge Temperature Sensor 50K Service Manual Resistance kQ Resi
10. 9 YEGN BU EN PE Aint 1 12 ES PE CN2 Es TE XT EN N By AC L3 D LU AP2 8 Sip COM OUT BU BN py i M ACN AC N2 IU IYEGN ace ACL OFAN OVC COMP VW X Y T PE EN VIDISOLATION SHEET ELEcTRICBOX BU YE L4 en lap fy L2 2 2 WE BU YE RD Motor ground only UAV YEGN Mess YEGN M iron Shell motor COMP 2 12 C2VO 12 ME TENSENGOR YEGN nu T n AB BU BN PE A DX t2 PE AV ci uu AC L2 1 BN Wel CN3 D yy jan BU 8 ii TaN mm i M ACN YEGN OFAN te UVW Y Lg P 7 RD MIDISOLATION SHEET ELECTRIC BOX aes PEO 1 1 ER r L2 2 Or BU FAN Motor ground only UY YEGN mesate TE cour COMP o Technical Information Service Manual These wiring diagrams are subject to change without notice please refer to the one supplied with the unit Technical Information 17 5 2 PCB Printed Diagram Indoor Unit Top view HH e Bottom view 18 Service Manual Technical Information Service Manual Outdoor Unit Top view
11. mmm 32 8 1 Installation Dimension DUAN ANN S on de 32 9 2 Installation anana a aa a aga ed ta peut puto ka aaa ga aaa 34 8 3 Selection Of Installation LOCAUOM T GE d 34 8 4 Electric Connection ReQUI MEN xan sane 34 8 5 Installation Indoor ones 34 8 6 Installation OF Outdoor a ee 37 6 9 Table of contents Service Manual vacuum Pumping and Leak DetectioM 55 32 93 3 IE 38 8 8 Check after Installation and Test Operation 38 9 Maintenance 39 Emor COS 39 9 2 Troubleshooting for Main Malfunction EE oies 46 9 3 Troubleshooting for Normal Malfunction prt vbi eea eaaa anae eaaa eaaa vaa rc 61 10 Exploded View and Parts _15 63 sob eerie ene ee ere ee eer 63 102 Outdoor Nissan canis T 78 11 Removal Procedure 86 11 1 Removal Procedure of Indoor isi xm e RERO anna bie ena 86 11 2 Removal Procedure of Outdoor Unit ass nn entente 89 Appendix nuoc 94 Appendix 1 Reference Sheet of Celsius and Fahrenheit 94 Appendix 2 Configuration
12. yes Is the control terminal of PG motor n connected tightly Insert the control terminal of PG motor tightly yes 5 malfunction n yes gt tir the blade hand to see whether no the blade rotate s smoothly Reinstall the blade and motor correctly 15 malfunction ng eliminated yes gt Turn on the init again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the yes louvers are opened yes lt yes Is the motor started up T 5 malfunction 4 eliminated yes gt Replace the mainboard with the same model 4 End Service Manual 3 Malfunction of Protection of Jumper Cap C5 Gee for C5 malfunction Is there jumper cap on the mainboard Appearance of the jumper cap model Assemble the jumper cap with the same yes 15 malfunction eliminated Is the jumper cap inserted correctly and tightly Insert the jumper cap tightly yes lt no yos Y Replace the jumper cap with the same model yes Is malfunction yes gt eliminated Y Replace the mainboard with the same model C End 48 Installation and Maintenance Service Manual 4 Malfunction of Overcurrent Protection E5 Troubleshooting for E5 malfun
13. 4o 7 me 205 54 4 292 m 198 3 4 e ses 2 192 a s 188 51 4 s 2 186 ma 4 a s 1 ma s s223 14 115 a 8 e 5 15 ws 4 16 s 49 1 Note The information above is for reference only Installation and Maintenance
14. pr n Note The connection pipe applies metric diameter The above data is subject to change without notice please refer to the nameplate of the unit Technical Information Service Manual Model B2VI 12 B2VO 12 C2VI 12 C2VO 12 Product Code CB145003700 Rated Voltage 220 240 1 Power Supply Mode Cooling Capacity Min Max 3500 600 3900 Heating Capacity Min Max 4000 880 4400 m L W W W W m m r r 1170 185 1400 Rated Current Air Flow Volume SH H M L SL Dehumidifying Volume EER 1600 1 7 8 580 500 400 300 16 24 B2VI 12 Fan Motor RLA A 0 1 Evaporator Tube Swing Motor Mode Fuse A 3 15 Sound Pressure Level SH H M L SL dB A 42 40 35 30 SCS kg 12 Gross Weight 2 99 Application Area Model of Indoor Unit Fan Type w LA EN ES Uh ww ww WW ww Ea Diameter Length DXL mim rin r min W W W A A W A h AN AN AN AN 2 m min min W e Technical Information Service Manual ModeofOudowUmt Product Gode of Outdoor Un Compressor Manufacturer Trademark ZHUHAI LANDA COMPRESSOR CO LTD CompesorModd Compressor Oil FVC 68EP Overload Protector O Two ngMehod Elee
15. During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Service Manual Possible Causes Showing during middle cooling or middle heating test Refer to the malfunction analysis IPM protection loss of synchronism protection and overcurrent protection of phase current for compressor Refer to the part three charging malfunction analysis of capacitor Replace outdoor control panel AP1 During cooling operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop After the complete unit is de energized for 20mins check whether the thermal grease on IPM Module of outdoor control panel 1 is sufficient and whether the radiator is inserted tightly If its no use please replace control panel AP1 42 3 times 8 times All loads operate normally while operation frequency for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Refer to the malfunction analysis overload high temperature resistant 1 Wiring terminal
16. icon is displayed on remote controller If you operate the remote controller it won t send signal Temperature display switchover function Under OFF status press and MODE buttons simultaneously to switch temperature display between and Technical Information Service Manual Operation Guide IE E 1 After putting through the power press ON OFF button on remote controller to turn on the air conditioner CD em 2 Press MODE button to select your required mode AUTO COOL DRY FAN HEAT gt 3 Press or button to set your required temperature Temperature can t be 3 adjusted under auto mode C33 4 Press FAN button to set your required fan speed auto low medium and high speed 5 Press SI button to select fan blowing angle Replacement of Batteries in Remote Controller 1 Press the back side of remote controller marked with of battery box along the arrow direction shown in the fig and then push out the cover 9 5 EI 2 Replace two 7 AAA 1 5V dry batteries and make sure the position of polar and polar are correct 3 Reinstall the cover of battery box Note Signal sender Battery e During operation point the remote control signal sender at the receiving window on indoor unit e The distance between signal sender and receiving window should be no more than 8m and there shoul
17. 1 AII wires of indoor unit and outdoor unit should be connected by a professional 2 If the length of power connection wire is insufficient please contact the supplier for a new one Avoid extending the wire by yourself 3 For the air conditioner with plug the plug should be reachable after finishing installation 4 For the air conditioner without plug an air switch must be installed in the line The air switch should be all pole parting and the contact parting distance should be more than 3mm 36 Service Manual 8 Bind up Pipe 1 Bind up the connection pipe power cord and drain hose with the band As show in Fig 14 2 Reserve a certain length of drain hose and power cord for installation when binding them When binding to a certain degree separate the indoor power and then separate the drain hose As show in Fig 15 3 Bind them evenly 4 The liquid pipe and gas pipe should be bound separately at the end outdoor power cor Gas A Fig 14 Connection pipe Drain pang Fig 15 Indoor power cord Note 1 The power cord and control wire can t be crossed or winding 2 The drain hose should be bound at the bottom 9 Hang the Indoor Unit 1 Put the bound pipes in the wall pipe and then make them pass through the wall hole 2 Hang the indoor unit on the wall mounting frame 3 Stuff the gap between pipes and wall hole with sealing gum 4 Fix the wall pipe As show in
18. Celsius C CF CF 32 0 55 56 55 4 13 33 8 57 58 57 2 14 35 6 59 60 59 15 37 4 61 62 60 8 16 392 4 62 6 17 41 64 65 64 4 18 428 6 66 67 66 2 19 44 6 68 69 68 20 464 8 70 71 69 8 21 48 2 71 6 22 50 10 73174 73 4 23 51 8 11 75 76 75 2 24 53 6 77 78 77 25 Appendix 2 Configuration of Connection Pipe 94 1 Standard length of connection pipe 5m 7 5m 8m 2 Min length of connection pipe is 3m 3 Max length of connection pipe and max high difference 9000 Btu h 2637 W 10 m 4 The additional refrigerant oil and refrigerant charging required after 12000 Btu h 3516 W 10m prolonging connection pipe 18000 Btu h 5274 W 10m e After the length of connection pipe is prolonged for 10m at the basis 24000 Btu h 7032 W 10m of standard length you should add 5ml of refrigerant oil for each 28000 Btu h 8204 W 10m additional 5m of connection pipe 36000 Btu h 10548 W 20m e The calculation method of additional refrigerant charging amount on 42000 Btu h 12306 W 20m the basis of liquid pipe 48000 Btu h 14064 W 20m Fahrenheit display temperature CI Service Manual Fahrenheit CF Celsius C 86 Fahrenheit display temperature 91 92 93 94 95 96 97 98 Cooling capacit Max length of Max height g capacity connection pipe difference 5000 Btu h 1465 W 5m 7000 Btu h 2051 W 5m 9 86 30 e When the length of connection pipe is above 5m add refrigerant accordi
19. For the air conditioner without plug an air switch must be installed in the circuit The air switch should be all pole parting and the contact parting distance should be more than 3mm 12 Make sure all wires and pipes are connected properly and the valves are opened before energizing 13 Check if there is electric leakage on the unit body If yes please eliminate the electric leakage 14 Replace the fuse with a new one of the same specification if it is burnt down don t replace it with a cooper wire or conducting wire 15 If the unit is to be installed in a humid place the circuit breaker must be installed Installation Safety Precautions 1 Select the installation location according to the require ment of this manual See the requirements in installation part 2 Handle unit transportation with care the unit should not be carried by only one person if it is more than 20kg 3 When installing the indoor unit and outdoor unit a suffi cient fixing bolt must be installed make sure the installation support is firm 4 Ware safety belt if the height of working is above 2m 5 Use equipped components or appointed components dur ing installation 6 Make sure no foreign objects are left in the unit after fin ishing installation Refrigerant Safety Precautions 1 Avoid contact between refrigerant and fire as it generates poisonous gas Prohibit prolong the connection pipe by welding 2 Apply specified refrigerant on
20. a O o o N 0 8 v ueuun ex 9 oneJ Ayoedeo 10 Technical Information Outdoor temp C 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outdoor temp C 10 Service Manual 2 4 Cooling and Heating Data Sheet in Rated Frequency Cooling Pressure of gas pipe Inlet and outlet pipe connecting indoor and temperature of heat Fan speed of Fan speed of Rated cooling condition C DB WB Compressor outdoor unit exchanger indoor unit outdoor unit revolution rps be Heating Pressure of gas pipe Inlet and outlet pipe Rated heatin connecting indoor temperature of heat Fan speed of Fan speed of condition C DB WB Compressor outdoor unit exchanger indoor unit outdoor unit revolution rps _ m Woh Tes Instruction T1 Inlet and outlet pipe temperature of evaporator T2 Inlet and outlet pipe temperature of condenser P Pressure at the side of big valve Connection pipe length 5 m 2 5 Noise Curve Indoor side noise when blowing Outdoor side noise when Compressor speed changed 55 09K 5 50 _12 _ o o o o z z vLIMCP 45 Supper High High Middle Low 20 30 40 50 60 70 75 Indoor fan motor rotating speed Compressor Speed rps Technical Information 11 Service Manual 3 Outline Dimension Diagram 3 1 Indoor Uni
21. mainboard terminal 2 Components on the mainboard fall down leads short circuit 3 Indoor evaporator temp sensor damaged check temp sensor value chart for testing 4 Mainboard damaged Outdoor temperature sensor hasnt been connected well or is damaged Please check it by referring to the resistance table for temperature sensor Outdoor temperature sensor hasnt been connected well or is damaged Please check it by referring to the resistance table for temperature sensor OFF 3S and blink 5 times OFF 3S and blink for 6 times OFF 1S and blink 3 times During cooling and drying operation compressor will sop after operating for about 3 mins while indoor fan will operate During heating operation the complete unit will stop after operating for about 3 mins All loads operate normally while operation frequency for compressor is decreased 1 Outdoor temperature sensor hasnt been connected well or is damaged Please check it by referring to the resistance table for temperature sensor 2 The head of temperature sensor hasnt been inserted into the copper tube Refer to the malfunction analysis overload high temperature resistant 40 OFF 1S and blink once OFF 3S and blink 8 times All loads operate normally while operation frequency for compressor is decreased The input supply voltage is too low System pressure is too high and overload Installation and
22. refrigerant leakage test heating capacity pipeline sufficient water dripping Java mes er water dripping Is the voltage of power E according to the may cause malfunction or voltage marked on the damage the parts nameplate Is electric wiring and pipeline installed correctly securely Le llow me postent 5 follow the specification damage the parts DU EN in air inlet and air outlet heating The dust and E caused It may cause malfunction or during installation are damaging the parts removed The gas valve and liquid valve of connection pipe are open completely It may cause malfunction or damage the parts It may cause insufficient cooling heating capacity 2 Test operation 1 Preparation of test operation e The client approves the air conditioner installation e Specify the important notes for air conditioner to the client 2 Method of test operation e Put through the power press ON OFF button on the remote controller to start operation e Press MODE button to select AUTO COOL DRY FAN and HEAT to check whether the operation is normal or not e the ambient temperature is lower than 16 C the air conditioner can t start cooling e 9 Installation and Maintenance Service Manual 9 Maintenance 9 1 Error Code List Malfunction pressure protection of Display Method of Outdoor Display Method of Indoor Unit Unit Indi
23. 2 Connect the charging hose of piezometer to the refrigerant charging vent of gas valve and then connect the other charging hose to the vacuum pump 3 Open the piezometer completely and operate for 10 15min to check if the pressure of piezometer remains in 0 1MPa 4 Close the vacuum pump and maintain this status for 1 2min to check if the pressure of piezometer remains in 0 1MPa If the pressure decreases there may be leakage 5 Remove the piezometer open the valve core of liquid valve and gas valve completely with inner hexagon spanner 6 Tighten the screw caps of valves and refrigerant charging vent As show in Fig 28 Liquid valve Gas valve Refrigerant chargin vent y Nut of refrigerant Charging vent Vacuum pump Inner hexagon spanner Fig 28 2 Leakage detection 1 With leakage detector Check if there is leakage with leakage detector 2 With soap water If leakage detector is not available please use soap water for leakage detection Apply soap water at the suspected position and keep the soap water for more than 3min If there are air bubbles coming out of this position there s a leakage 38 Service Manual 8 8 Check after Installation and Test Operation 1 Check after Installation Check according to the following requirement after finishing installation The unit may drop shake or installed firmly emit noise may cause insufficient cooling
24. Maintenance Service Manual Malfunction Name Decrease frequency due to Voltage for DC bus bar is too high Voltage of DC bus bar is too low Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display during Dual 8 Dlinking ON 0 55 Code 0 55 Displ BRAN Operation Cool Indicator Indicator OFF 3S and blink 9 times OFF 3S and blink 2 times during blinking ON 0 25s and OFF 0 25s during blinking ON 0 25s and OFF 0 25s during blinking ON 0 25s and OFF 0 25s Installation and Maintenance d OFF Heating Indicator OFF 3S and blink 2 times during blinking ON 0 25s and OFF 0 25s during blinking ON 0 25s and OFF 0 25s during blinking ON 0 25s and OFF 0 25s Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Yellow Red Green Indicator Indicator Indicator status All loads operate normally while operation frequency for compressor is decreased All loads operate normally while operation frequency for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Possible Causes Overload or te
25. OVC COMP is loosened In normal state the resistance for this terminal should be less than 1ohm 2 Refer to the malfunction analysis discharge protection overload Installation and Maintenance Service Manual Installation and Maintenance Display Method of Indoor Unit Indicator has 3 kinds of incicator Display during display status and during Malfunction inki NO Name Dual 8 blinking 0 55 and OFF status Possible Causes Code 0 5s f Displ Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator During cooling and drying operation compressor will stop OFF 35 OFF 15 Refer to the malfunction analysis while indoor fan will operate 34 and blink and blink Burna hai overload high temperature uring heating operation the 4 times 6 times 9 9 resistant complete unit will stop operation During cooling and dryin 9 9 Yy g Refer to the malfunction operation compressor will stop analysis IPM protection loss while indoor fan will operate 35 of synchronism protection and During heating operation the overcurrent protection of phase complete unit will stop j current for compressor operation B 1 Bad contact of DC motor feedback terminal Internal fan motor external fan 2 Bad contact of DC motor Internal motor OFF 3S motor compr
26. after rising 3 C after running for 7 hours the temperature will decrease 1 C and it will not change after that 6 Technical Information Service Manual 1 2 When the initial set temperature is 24 27 C the temperature will rise 1 C by every hour after sleep function is set the temperature will not change after rising 2 C after running for 7 hours the temperature will decrease 1 C and it will not change after that 1 3 When the initial set temperature is 28 29 C the temperature will rise 1 C by every hour after sleep function is set the temperature will not change after rising 1 C after running for 7 hours the temperature will decrease 1 C and it will not change after that 1 4 When the initial set temperature is 30 C the unit will keep on running at this temperature after running for 7 hours the temperature will decrease 1 C and it will not change after that Relationship between set temperature and running time Initial Temp Running time T O start 1 2 2 In heating mode 2 1 When the initial set temperature is 16 C the unit will keep on running at this temperature 2 2 When the initial set temperature is 17 20 C the temperature will decrease 1 C by every hour after sleep function is set the temperature will not change after decreasing 1 C 2 3 When the initial set temperature is 21 27 C the temperature will decrease 1 C by every hour after sleep function is set the temperature will not change
27. heavy If radiating of unit is good Malfunction diagnosis process H5 H7 or P5 is displayed after turning on the unit Measure if the voltage input is within 180 265V with AC voltmeter see fig 30 N Repair power supply to make the power voltage normal 5 the unit gt If the control board is well connected with compressor COMP If they are loosened If the connection sequence is correct The unit starts operation again The unit starts operation again x 4 The compressor Adjust it properly is well connected gt according to wiring Restart the unit with mainboard diagram 5 1 Y N Heat exchanger is the heat exchanger Restart the unit blocked with dirt to improve its performance N The unit starts operation again Adjust refrigerant Restart the unit charging amount Replace outdoor Does the unit The unit starts operation again mainboard AP1 work normally Replace compressor 52 e End Installation and Maintenance Service Manual 8 High temperature and overload protection E8 AP1 below means control board of outdoor unit Main detection points ff the outdoor ambient temperature is in normal range if the indoor and outdoor fan are running normally If the radiating environment of indoor and outdoo
28. pipe position In order to drain smoothly slant the piping hole on the wall slightly downward to the outdoor side with the gradient of 5 10 As show in Fig 2 Indoor Outdoor 4 5 10 Fig 2 Note 1 Pay attention to dust prevention and take relevant safety measures when opening the hole 2 The plastic expansion particles are not provided and should be bought locally 4 Outlet pipe 1 The pipe can be led out in the direction of right rear right left or rear left As show in Fig 3 2 When selecting leading out the pipe from left or right please cut off the corresponding hole on the bottom case As show in Fig 4 Rear left Fig 3 Left Right Cut off the hole Fig 4 Installation and Maintenance Rear piping hole 5 Connect the Pipe of Indoor Unit 1 Aim the pipe joint at the corresponding bellmouth As show in Fig 5 2 Pretightening the union nut with hand 3 Adjust the torque force by referring to the following sheet Place the open end wrench on the pipe joint and place the torque wrench on the union nut Tighten the union nut with torque wrench As show in Fig 6 4 Wrap the indoor pipe and joint of connection pipe with insulating pipe and then wrap it with tape As show in Fig 7 Open end wrench Union nut n Pipe joint Union nut Pipe Torque wrench RIT Fig 5 Indoor pipe Fig 6 Insulating pipe Fig 7 Refer to the follo
29. recovery If not check power connection for power plug land the buzzer can t give out sound supply circuit and make sure the power plug is connected well rong wire connection between indoor unit and outdoor unit Under normal power supply circumstances poor connection for wiring operation indicator isn t bright after energization erminals Check the circuit according to circuit diagram land connect wires correctly Make sure all iring terminals are connected firmly Make sure the air conditioner is grounded reliably Make sure wires of air conditioner is connected correctly Check the wiring inside air conditioner Check hether the insulation layer of power cord is damaged if yes place the power cord for air switch is After energization air switch trips off Select proper air switch After energization operation indicator is bright Malfunction of remote controller while no display on remote controller or buttons have no action After energization room circuit breaker trips off at Electric leakage for air conditione once Replace batteries for remote controller Repair or replace remote controller 2 Poor Cooling Heating for Air Conditioner Possible Causes Discriminating Method Air conditioner Status Troubleshooting Set temperature is improper Observe the set temperature on remote controller Adjust the set temperature Rotation Speed of the IDU fan Small wind blow Set the fan speed at high or medium
30. the drying function operating the drying button will stop the inner fans and close the guide louver 13 Memory function when interrupting the power supply Memory content mode swing function light set temperature and wind speed After interrupted the power supply the machine will start when recovering the power according to the memory content automatically If the last remote control command has not set the timed function the system will remember the last remote control command and operate according it If the last remote control command has set timed function and the power supply is interrupted before the timed time the system will remember the timed function of the last remote control command the timed time will recounted form power on If the last remote control command has set timed function the time is out and the system is start or stop according to the set time when the power supply is interrupted the system will remember the operation status before the power supply was interrupted and do not carry out timed action The timed clock will not remembered 14 Electric heating band control of outdoor unit Compressor electric heating band control a Start condition the compressor is in off status and the outdoor ambient temperatures 5 C b Stop condition the band is off when either of the below condition is met 1 The compressor is in on status 2 The compressor is in off status and the outdoor ambient temperature2 5 C c Wh
31. the malfunction eliminated type with communication 7 malfunction detector N alfunction of outdo Replace outdoor ommunication circui mainboard AP1 Replace indoor Is the malfunction mainboard AP2 15 the malfunction eliminated Installation and Maintenance Service Manual 13 Flow chart for outdoor communitcation circuit detecting 1 Test the voltage between N point of wiring board and communication cable with universal meter The voltage shall be variable Otherwise it might be malfunction of mainboard of indoor unit or malfunction of mainboard of outdoor unit or wrong wire connection of indoor and outdoor unit Please ensure that there is no malfunction of mainboard of indoor unit or wrong wire connection of indoor and outdoor unit After removing the malfunction of indoor unit remove the malfunction of outdoor unit 2 Test the voltage of pin 1 and pin 2 of U132 with universal meter voltage of both sides of R135 The voltage should be variable Test 10 Test the voltage of pin 3 and pin 4 of U132 with universal meter voltage of both sides of R1312 The voltage should be variable Test 15 Otherwise there is malfunction of mainboard of outdoor unit 3 Test the voltage of pin 3 and pin 4 of U131 with universal meter voltage of both sides of R134 The voltage should be variable test 11 Test the voltage of pin 1 and pin 2 of U132 with universal m
32. Fig 16 5 Check if the indoor unit is installed firmly and closed to the wall As show in Fig 17 annann Indoor Outdoor mud 2 Fig 16 Lower hook of wall mounting frame Note Do not bend the drain hose too excessively in order to prevent blocking Installation and Maintenance Service Manual 8 6 Installation of Outdoor Unit 1 Fix the support of outdoor unit select it according to the actual installation situation 1 Select installation location according to the house structure 2 Fix the support of outdoor unit on the selected location with expansion screws Note 1 Take sufficient protective measures when installing the outdoor unit 2 Make sure the support can withstand at least four times the unit weight 3 The outdoor unit should be installed at least 3cm above the floor in order to install drain joint As show in Fig 18 4 For the unit with cooling capacity of 2300W 5000W 6 expansion screws are needed for the unit with cooling capacity of 6000W 8000W 8 expansion screws are needed for the unit with cooling capacity of 10000W 16000W 10 expansion screws are needed Chassis Outdoor drain joirt Drain vent Drain hose El he At least 3cm above the floor 2222 Fig 18 Fig 19 2 Install Drain Joint Only for cooling and heating unit 1 Connect the outdoor drain joint into the hole on the chassis 2 Connect the drain hose in
33. a time lag of 30s 4 Fan Mode Under the mode the indoor fan will run at preset speed and the compressor the outdoor fan the four way valve and the electric heater will stop Under the mode temperature can be set within a range of 16 30 5 AUTO Mode Working conditions and process of AUTO mode a When T ambient 226 C the unit will operate in Cool mode The set temperature is 25 C b When T ambient lt 22 the heat pump unit will operate in Heat mode set temperature be 20 the cooling only unit will operate in Fan mode set temperature be 25 c When 23 CST ambient lt 25 C the unit will operate the previous state If it is energized for the first time it will operate in Fan mode d Under auto mode if its cooling mode operation frequency is same as that under cooling mode if its heating mode operation frequency is same as that under heating mode Technical Information Service Manual 26 Protection a In cooling operation protection is the same as that under the cooling mode b In heating operation protection is the same as that under the heating mode c When ambient temperature changes operation mode will be converted preferentially Once started the compressor will remain unchanged for at least 6 minutes 6 Common Protection Functions and Fault Display under COOL HEAT DRY and AUTO Modes QD Overload protection T tube measured temperature of outdoor heat exchang
34. after decreasing 2 C 2 4 When the initial set temperature is 28 30 C the temperature will decrease 1 C by every hour after sleep function is set the temperature will not change after decreasing 3 C Relationship between set temperature and running time Running time T Ota 1 2 3 4 5 6 7 8 29 28 27 27 27 27 27 6 Indoor Fan Control The Indoor Fan can be set as HIGH MED LOW by remote control and the Indoor Fan will be respectively run at high medium low speed It will also be set as AUTO and the Indoor Fan is as the followings at the automatic wind speed Technical Information 27 Service Manual Cooling mode in auto cooling mode or normal cooling mode the auto fan speed will run at below mode a When Tamb 2Tpreset 2 C the indoor fan will run at high speed b When Tpreset lt Tamb lt Tpreset 2 C the indoor fan will run at middle speed Tamb sTpreset the indoor fan will run at low speed Switches between high speed and middle speed middle speed and low speed high speed and low speed running time of 3 5 minutes must be ensured Heating mode in auto heating mode or normal heating mode the auto fan speed will run at below mode a When Tamb lt Tpreset 1 C the indoor fan will run at high speed b When Tpreset 1 C lt Tamb lt Tpreset 3 C the indoor fan will run at middle speed Tamb 2Tpreset 3 C the indoor fan will run at low speed Switches between h
35. air disappear after a few minutes conditioner Foreign objects inside the indoor Remove foreign objects Adjust all parts unit or there re parts touching There s abnormal sound fro indoor unit position of indoor unit tighten screws and stick ogether inside the indoor unit damping plaster between connected parts Foreign objects inside the outdoo Remove foreign objects Adjust all parts unit or there re parts touching There s abnormal sound fro outdoor unit position of outdoor unit tighten screws and ogether inside the outdoor unit stick damping plaster between connected parts Short circuit inside the magnetic During heating the way valve has abnormal Replace magnetic coil coil electromagnetic sound Abnormal shake of compressor Outdoor unit gives out abnormal sound Gus ok the Support foot matot compressor tighten the bolts If add too much refrigerant during maintenance Abnormal sound inside the compressor please reduce refrigerant properly Replace compressor for other circumstances Replace the compressor capacitor Abnormal sound inside the ee Installation and Maintenance 11 Removal Procedure Service Manual A Caution discharge the refrigerant completely before removal 11 1 Removal Procedure of Indoor Unit 86 Procedure 1 Remove panel Open the front panel Push the rotor shaft on both sides of the panel to make it separate from the groove Remove the panel Panel 2 Remove filter Loos
36. art and short circuit continuously measured failure in 30S Technical Information Service Manual F2 Indoor evaporator sensor start and short circuit continuously measured failure in 30S F3 Outdoor ambient sensor start and short circuit continuously measured failure in 30S F4 Outdoor condenser sensor start and short circuit continuously measured failure in 30S and dont measure within 10 minutes after defrosted F5 Outdoor exhausting sensor start and short circuit continuously measured failure in 30S after the compressor operated 3 minutes H3 Overload protection of compressor H5 Module protection PH High voltage protection PL Low voltage protection P1 Nominal cooling and heating P2 Maximum cooling and heating P3 Medium cooling and heating PO Minimum cooling and heating 12 Drying Function You may start or stop the drying function under the modes of cooling and dehumidify at the starting status The modes of automatism heating and air supply do not have drying function When you start the drying function after stop the machine by pressing the switch button you should keep running the inner fans for 2 minutes under low air damper The swing will operate as the former status within 2 minutes cooling indicator is on for 0 5s and then off for 10s in drying and other load is stopped then stop the entire machine When you stop the drying function press the switch button will stop the machine directly When you start
37. ater time will change quickly Release this button when reaching your required time Press CLOCK button to confirm the time D icon stops blinking Note e Clock time adopts 24 hour mode e The interval between two operation can t exceeds 5s Otherwise remote controller will quit setting status Operation for TIMER ON TIMER OFF is the same 7 TIMER ON TIMER OFF Button e TIMER ON button TIMER ON button TIMER ON button can set the time for timer on After pressing this button D icon disappears and the word ON on remote 274 Technical Information 21 Service Manual controller blinks Press or button to adjust TIMER ON setting After each pressing or button TIMER ON setting will increase or decrease 1min Hold or button 2s later the time will change quickly until reaching your required time Press TIMER ON to confirm it The word ON will stop blinking icon resumes displaying Cancel TIMER ON Under the condition that TIMER ON is started up press TIMER ON button to cancel it e TIMER OFF button TIMER OFF button can set the time for timer off After pressing this button D icon disappears and the word OFF on remote controller blinks Press or button to adjust TIMER OFF setting After each pressing or button TIMER OFF setting will increase or decrease 1min Hold or button 2s later the time will change quickly until reaching your req
38. cator Display during Dual 8 blinking ON 0 5s and OFF Indicator has 3 kinds of display status and during status During cooling and drying operation except indoor fan operates all loads stop operation During heating operation the complete unit stops Possible Causes Possible reasons 1 Refrigerant was superabundant 2 Poor heat exchange including filth blockage of heat exchanger and bad radiating environment Ambient temperature is too high protection of compressor blink 9 times and blink 7 times During cooling and drying operation compressor and outdoor fan stop while indoor fan operates The Dual 8 Code Display will show FO and the complete unit stops During cooling and drying operation compressor and outdoor fan stop while indoor fan operates During heating operation all loads stop 1 Poor air return in indoor unit 2 Fan speed is abnormal 3 Evaporator is dirty 1 In defect of refrigerant 2 Indoor evaporator temperature sensor works abnormally 3 The unit has been plugged up somewhere Please refer to the malfunction analysis discharge protection overload Overcurrent protection Communi cation Malfunction resistant protection EEPROM malfunction Malfunction protection of jumper cap and blink 15 times Installation and Maintenance Q and blink During cooling and drying operation compressor and outdoor fan stop while i
39. connection wire between reactor mainboard N and situation of connection econnect the wire or y replace the connection wire according to the wiring diagram If there is short circuit or the connection wire is loose Power on and restart the unit Is the malfunction eliminated Check the surface of reactor coil N Power on and restart the unit Is the malfunction eliminated If it is damaged Y Replace the reactor N Replace outdoor N mainboard AP1 End Installation and Maintenance Service Manual 12 Communication malfunction E6 Main detection points Check if the connection wire and the built in wiring of indoor and outdoor unit are connected well and without damage f the communication circuit of indoor mainboard is damaged If the communication circuit of outdoor mainboard AP1 is damaged Malfunction diagnosis process If the unit operates normally before malfunction 4 Check built in wiring of indoor and outdoor unit Replace the wire T N Y Is the malfunction If the wiring is damaged Check the connection wire according to the wiring diagram If the connection wire is connected well N Y Reconnect the wire or replace the connection wire according to the wiring diagram Check
40. cooling and dehumidifying mode in which case the compressor and the outdoor fan will operate and the indoor fan will run at low speed If T preset 2 ST amb T preset the compressor remains at its original operation state If T amb lt T preset 2 the compressor will stop the outdoor fan will stop with a time lag of 30s and the indoor fan will operate at low speed Protection Protection is the same as that under the cooling mode Q Technical Information Service Manual 3 HEAT Mode Working conditions and process of heating If Tamb lt Tpreset 2 C the unit enters heating mode in which case the four way valve the compressor and the outdoor fan will operate simultaneously and the indoor fan will run at preset speed in the condition of preset cold air prevention If T amb 2Tpreset 5 C the compressor will stop the outdoor fan will stop with a time lag of 30s and the indoor fan will stop after 60 second blow at low speed If Tpreset 2 C lt T amb lt Tpreset 5 C the unit will maintain its original operating status Under this mode the four way valve is energized and temperature can be set within a range of 16 30 C The operating symbol the heating symbol and preset temperature are revealed on the display Condition and process of defrost When duration of successive heating operation is more than 45 minutes or accumulated heating time more than 90 minutes and one of the following conditions is reached t
41. ction 15 the supply voltage unstable with big fluctuation no yes voltage on the nameplate Normal fluctuation is within 10 of the rated no Malfunction is eliminated Is the supply voltage too low with overload no Adjust the supply voltage to maintain it within normal range no Malfunction is eliminated s the indoor outdoor heat exchanger too dirty or the air inlet and outlet blocked gt Clean the indoor and outdoor heat exchangers and remove the blockage of air inlet and outlet no Malfunction is eliminated no 4 The fan is abnormal Fan speed is too low or fan doesn t rotate yes the fan run normally Check the motor and reinstall the motor to have no Malfunction is eliminated no 4 Measure the current of live wireon the main board with a clamp ampere meter Is the current higher than the value of the overcurrent protection yes Replace the mainboard with the same model Malfunction is eliminated 15 there blockage inside the system Filth blockage ice plug greasy blockage the Y valve hasn t been opened completely no Flush the heat exchangers with high pressure nitrogen no IS the compressor running abnormally 15 there abnormal sound o
42. ctual one 2 Fix the power connection wire with wire clip 3 Fix the stopper on handle with screw A Note 1 After tightening the screw pull the power cord slightly to check if it is firm 2 Never cut the power connection wire to prolong or shorten the distance 6 Neaten the Pipes 1 The pipes should be placed along the wall bent reasonably and hidden possibly Min semidiameter of bending the pipe is 10cm 2 If the outdoor unit is higher than the wall hole you must set a U shaped curve in the pipe before pipe goes into the room in order to prevent rain from getting into the room As show in Fig 24 The drain hos can t raise upwards Fig 25 Fig 24 Note 1 The through wall height of drain hose shouldn t be higher than the outlet pipe hole of indoor unit As show in Fig 25 2 Slant the drain hose slightly downwards The drain hose can t be curved raised and fluctuant etc As show in Fig 26 37 3 The water outlet can t be placed in water in order to drain smoothly As show in Fig 27 Y 0 x x The drain hose can t be fluctuant The water outlet The drain hose x ps Y can t be fluctuant The water outlet can t be fluctuant Fig 27 Fig 26 8 7 Vacuum Pumping and Leak Detection 1 Use Vacuum Pump 1 Remove the valve caps on the liquid valve and gas valve and the nut of refrigerant charging vent
43. d connection diagram Measure the capacity of fan capacitor with an Capacity of compressor is universal meter and find that the capacity is out off damaged he deviation range indicated on the nameplate of an capacitor Power voltage is a little low or Use universal meter to measure the power supply A high oltage The voltage is a little high or low 99 ge reg Use universal meter to measure the resistance Coil of compressor is burnt out d Repair or replace compressor between compressor terminals and it s O Cylinder of compressor is blockedCompressor can t operate Repair or replace compressor 6 Air Conditioner is Leaking Discriminating method air conditioner status Troubleshooting Drain pipe is blocked ater leaking from indoor unit the foreigmobjects We drain Drain pipe is broken ater leaking from drain pipe Replace drain pipe rapping is not tight ka ad al fromthe pipe connectionplace or rap it again and bundle it tightly 7 Abnormal Sound and Vibration Discriminating method air conditioner status Troubleshooting hen turn on or turn off the unit he panel and Amer parts will There s the sound of PAPA Normal phenomenon Abnormal sound will expand and there s abnormal disappear after a few minutes sound hen turn on or turn off the unit here s abnormal sound due Normal phenomenon Abnormal sound will AC ater running sound can be heard flow of refrigerant inside
44. d be no obstacles between them e Signal may be interfered easily in the room where there is fluorescent lamp or wireless telephone remote controller should be close to indoor unit during operation Cover of e Replace new batteries of the same model when replacement is required e When you don t use remote controller for a long time please take out the batteries e f the display on remote controller is fuzzy or there s no display please replace batteries Reinstall Remove Technical Information 23 24 Service Manual 6 2 Brief Description of Modes and Functions 1 Temperature Parameters Indoor preset temperature T prose Indoor ambient temperature T amb 2 Basic Functions Once energized in no case should the compressor be restarted within less than 3 minutes In the situation that memory function is available for the first energization if the compressor is at stop before de energization the compressor will be started without a 3 minute lag if the compressor is in operation before de energization the compressor will be started with a 3 minute lag and once started the compressor will not be stopped within 6 minutes regardless of changes in room temperature 1 COOL mode Q The condition and process of cooling If Tamb ZTpreset COOL mode will act the compressor and outdoor fan will run and the indoor fan will run at the set speed If Tamb STpreset 2 C the compressor will stop the
45. do not use the fuse only for protect the circuit 8 5 Installation of Indoor Unit 1 Choosing Installation location Recommend the installation location to the client and then confirm it with the client 2 Install Wall mounting Frame 1 Hang the wall mounting frame on the wall adjust it in horizontal position with the level meter and then point out the screw fixing holes on the wall 2 Drill the screw fixing holes on the wall with impact drill the specification of drill head should be the same as the plastic expansion particle and then fill the plastic expansion particles m e Installation and Maintenance Service Manual in the holes 3 Fix the wall mounting frame on the wall with tapping screws ST4 2X25TA and then check if the frame is firmly installed by pulling the frame If the plastic expansion particle is loose please drill another fixing hole nearby 3 Install Wall mounting Frame 1 Choose the position of piping hole according to the direction of outlet pipe The position of piping hole should be a little lower than the wall mounted frame As show in Fig 1 Wall Wall Mark in the middle of it Level meter SN Space I Space to 22 55 gt Le to the all all above bove 150mm 150m N qe Left Right 55 55 Rear piping hole 2 Open a piping hole with the diameter of 55 on the selected outlet
46. e method in details Malfunction of the ODU fan motor The ODU fan motor can t operate point 4 of maintenance method for Malfunction of compressor Compressor can t operate oe point 5 of maintenance method for 3 Horizontal Louver Can t Swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting Refrigerant is leaking Connect wires according to wiring diagram to rong wire connection or poor Check the wiring status according to circuit a 9 g make sure all wiring terminals are connected connection diagram irmly tepping motor is damaged Stepping motor can t operate Repair or replace stepping motor Main board is damaged areali normal While nonzontallouver Replace the main board with the same model can t operate Installation and Maintenance 62 Service Manual 4 ODU fan Motor Can t Operate Discriminating method air conditioner status Troubleshooting Connect wires according to wiring diagram to make sure all wiring terminals are connected rong wire connection or poor Check the wiring status according to circuit diagram he deviation range indicated on the nameplate of capacitor Change compressor oil and refrigerant If no better replace the compressor with a new one Connect wires according to wiring diagram to rong wire connection or poor Check the wiring status according to circuit M make sure all wiring terminals are connecte
47. e detailed installation steps in this section Installation and Maintenance Finish installation 33 8 2 Installation Parts checking Name Indoor unit 8 Sealing gum Outdoor unit 9 Wrapping tape Connection pipe m Drainage pipe Fixing screw Wall mounting 12 Drainage plug cooling frame and heating unit Connecting Owner s manual 6 13 cable power cord remote controller 7 pipe _ N Note 1 Please contact the local agent for installation 2 Don t use unqualified power cord 8 3 Selection of Installation Location 1 Basic Requirement Installing the unit in the following places may cause malfunction If it is unavoidable please consult the local dealer 1 The place with strong heat sources vapors flammable or explosive gas or volatile objects spread in the air 2 The place with high frequency devices such as welding machine medical equipment 3 The place near coast area 4 The place with oil or fumes in the air in the air 5 The place with sulfureted gas 6 Other places with special circumstances 2 Indoor Unit 1 There should be no obstruction near air inlet and air outlet 2 Select a location where the condensation water can be dispersed easily and won t affect other people 3 Select a location which is convenient to connect the outdoor unit and near the power socket 4 Select a location which is out of reach for children 5 The locat
48. e sheet below n 6 6 35 1 4 Outer diameter mm 9 52 3 8 12 12 70 1 2 16 15 88 5 8 F Inspection Smooth surface e Check the quality of expanding port If there is any blemish expand the port again according to the steps above lt gt leaning damaged crack uneven surface thickness The length is equal Installation and Maintenance 95 Service Manual Appendix 4 List of Resistance for Ambient Temperature Sensor Resistance Table for Indoor and Outdoor Ambient Temperature Sensors 15K Tempo Resistance Temp C Resistancekay Temp C Resistance Temp Resistance ka 49 2 so 9 0 48 2 9 109 2 o o 1o 16 115 23 16 39 62 3 454 101 0 98 Eme HN 16 amp 327 095 oa 26 1 oss 2 2 008 105 083 ss e 1 08998 10 82 75 29 12 6 68 2 797 107 0 825 8 ans at s 2m 9 om 3 os 2 o n mo ors 5 es ws 7 m orr 5 m om 4 60 23 35 9 779 74 2 28 113 0 697 EMEN REM MEM AM 2 s 215 s 4 s 204 m ooz
49. en outdoor ambient temperature sensor is in malfunction status the electric heating band stops operation Condenser electric heating band control 1 When Toutdoor ambients1 C the electric heating band starts working 2 When enter defrosting and defrosting is finished the chassis electric heating band starts working for 3min as the compressor starts After the compressor starts for 3min and Toutdoor ambient23 C the electric heating band stops operation 3 When Toutdoor ambient23 C the condenser electric heating band doesn t work 4 When 1 C lt Toutdoor ambient lt 3 C the condenser electric heating band keeps the previous status When outdoor ambient temperature sensor is in malfunction status the electric heating band stops operation the electric heating band can work again after 2min of last stop Technical Information 29 Service Manual Part I Installation and Maintenance T Notes for Installation and Maintenance Safety Precautions Important Please read the safety precautions carefully before installation and maintenance The following contents are very important for installation and maintenance Please follow the instructions below eThe installation or maintenance must accord with the instructions eComply with all national electrical codes and local electrical codes ePay attention to the warnings and cautions in this manual eAll installation and maintenance shall be performed by distrib
50. en the clasp of the filter Push the filter inward and then draw it upward to remove it 3 Remove horizontal louver and front case Remove axial sleeve of horizontal louver Bend the louver outwards and then remove the louver Loosen the screws of the electric box cover2 with screwdriver Remove the electric box cover2 Open the screw cap on the front case Remove the screws fixing the front case Loosen the six clasps of the front case Remove the front case Front Case we Horizontal Louver Installation and Maintenance Service Manual Steps Procedure 4 Remove electric box assy Remove the screws of the electric box assy Remove the screws at the joint of the earthing wire and evaporator Loosen the clasp at the joint of the electric box cover and the electric box Remove the 2 screws of the display Remove the electric box assy 5 Remove evaporator Pipe Clamp Remove the screws of the press plate of connecting pipe Remove press plate of connecting pipe Re Evaporator Remove the 3 screws at the joint of the evaporator and rear case Adjust slightly the pipe on the evaporator Remove the evaporator Installation and Maintenance 87 Service Manual 5 i 6 Remove motor axial flow blade Remove screws of step motor and then Remove the screw of the motor press plate and then remove the press plate Remove the screws at the joint
51. er temperature indicator on indoor unit displays set temperature When selecting 5 with remote controller temperature indicator on indoor unit displays indoor ambient temperature When selecting TJ with remote controller temperature indicator on indoor unit displays outdoor ambient temperature Note e Outdoor temperature display is not available for some models At that time indoor unit receives signal while it displays indoor set temperature e 5 defaulted to display set temperature when turning on the unit There is no display in the remote controller e Only for the models whose indoor unit has dual 8 display 10 TURBO Button Under COOL or HEAT mode press this button to turn to quick COOL or quick HEAT mode icon is displayed on remote controller Press this button again to exit turbo function and 6 icon will disappear 11 SLEEP Button Under COOL HEAT mode press this button to start up sleep function G icon is displayed on remote controller Press this button again to cancel sleep function and icon will disappear 12 LIGHT Button Press this button to turn off display light on indoor unit 5 icon on remote controller disappears Press this button again to turn on display light 55 icon is displayed Function Introduction for Combination Buttons Child lock function Press and simultaneously to turn on or turn off child lock function When child lock function is on
52. er under cooling mode and measured temperature of indoor heat exchanger under heating mode 1 Cooling overload a If T tube lt 52 C the unit will return to its original operation state b If T tube255 C frequency rise is not allowed c If T tubez58 C the compressor will run at reduced frequency d If T tube262 C the compressor will stop and the indoor fan will run at preset speed 2 Heating overload a If T tube lt 50 C the unit will return to its original operation state b If T tube253 C frequency rise is not allowed c tubez56 C the compressor will run at reduced frequency d If T tube260 C the compressor will stop and the indoor fan will blow residue heat and then stop Exhaust temperature protection of compressor If exhaust temperature gt 98 frequency is not allowed to rise If exhaust temperature gt 103 the compressor will run at reduced frequency If exhaust temperature 2110 C the compressor will stop If exhaust temperature lt 90 and the compressor has stayed at stop for at least 3 minutes the compressor will resume its operation 3 Communication fault If the unit fails to receive correct signals for durative 3 minutes communication fault can be justified and the whole system will stop 4 Module protection Under module protection mode the compressor will stop When the compressor remains at stop for at least 3 minutes the compressor will resume its operation If module protecti
53. essor and electric control end 37 motor do and blink heater stop operation guide li not operate 11 times louver stops at present s FAR EDGESE Stale location 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit During cooling and drying Refer to the malfunction Desynchro operation compressor will Stop analysis IPM protection loss while indoor fan will operate 38 2 of of synchronism protection During heating operation the compressor complete unit will stop overcurrent protection of phase operation current for compressor During cooling and drying operation compressor will stop 39 while indoor fan will operate Refer to the malfunction analysis During heating operation the complete unit will stop operation Outdoor DC OFF 3S Outdoor DC fan motor DC fan motor malfunction or 40 fan motor and blink malfunction lead to compressor system blocked or the connector malfunction 23 times stop operation loosed compressor stop operation and ower OFF 3S Outdoor fan motor will stop To protect the electronical 41 P and blink 30s latter 3 minutes latter components when detect high protection y 20 times fan motor and compressor will power restart Indoor unit OFF 3S and outdoor compressor and Outdoor fan Indoor unit and outdoor unit doesn t 42 1 and blink unit doesn t motor can t work match 19 times match During cooling and drying operation compressor w
54. et fan speed circularly as auto AUTO low 4 medium 44 high adl Auto 4d gt df Note e Under AUTO speed the IDU fan motor will adjust the fan speed high medium or low speed according to ambient temperature e Fan speed under dry mode is low speed 5 Button Pressing this button can select up amp down swing angle Fan blow angle can be selected circularly as below E312 i no display f gt fe 4 gt l zl 1 stops at current position When selecting 3I air conditioner is blowing fan automatically Horizontal louver will automatically swing up amp down at maximum angle e When selecting OE air conditioner is blowing fan at fixed position Horizontal louver will stop at the fixed position e When selecting E 2 4M air conditioner is blowing fan at fixed angle Horizontal louver will send air at the fixed angle Hold 51 button above 2s to set your required swing angle When reaching your required angle release the button Note 20 2 24 may not be available When air conditioner receives this signal the air conditioner will blow fan automatically 6 CLOCK Button Press this button to set clock time D icon on remote controller will blink Pess or button within 5s to set clock time Each pressing of or button clock time will increase or decrease 1 minute Hold or button 2s l
55. eter voltage of both sides of C134 The voltage should be variable test 12 Otherwise there is malfunction of mainboard of outdoor unit 4 Test the voltage between pin 1 of R135 white and pin 1 of U4 The voltage should be variable Test voltage between pin1 of R131 white and pin 1 of U4 with universal meter The voltage should be variable Otherwise there is malfunction of mainboard of outdoor unit Installation and Maintenance 59 Service Manual Start t Measure voltage at the Test 10 position as shown in the diagram with a voltmeter Value jumping 4 2 Measure voltage the Test 15 position as shown in the diagram with a voltmeter Value jumping N gt Fault with outdoor unit 4d End Measure voltage at the Test 11 position as shown in the diagram with a voltmeter 84 Value jumping N gt Measure voltage at the Test 12 position as shown in the diagram with a voltmeter Eu 1 Value jumping The communication circuit of the outdoor unit is normal 60 Installation and Maintenance Service Manual 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Can t be Started Up Possible Causes Discriminating Method Air conditioner Status Troubleshooting Confirm whether it s due to power failure If yes power supply or poor After energization operation indicator isn t bright for power
56. fectual only on condition that setting the swinging order and the inner fan is running The indoor fan and compressor may get the power when air deflector is on the default location heating angle 0 cooling angle 0 L1 L A1 1 C1 D1 D 10 Display D Operation pattern and mode pattern display All the display patterns will display for a time when the power on the operation indication pattern will display in red under standby status When the machine is start by remote control the indication pattern will light and display the current operation mode the mode light includes Cooling heating and dehumidify If you close the light key all the display patterns will close Double 8 display According to the different setting of remote control the nixie light may display the current temperature the temperature scope is from 16 to 30 and indoor ambient temperature The set temperature displayed in auto cooling and fan mode is 25 and the set temperature displayed in auto heating mode is 20 Under heating mode nixie tube displays H1 or heating indicator is off 0 55 and blinks 10s in defrosting If you set the fahrenheit temperature display the nixie light will display according to fahrenheit temperature 11 Protection function and failure display E2 Freeze proofing protection E4 Exhausting protection E5 Overcurrent protection E6 Communication failure H4 Overload protection F1 Indoor ambient sensor st
57. he unit will enter the defrost mode after 3 minutes 1 T outdoor ambient gt 5 C T outdoor tubes 2 C 2 2 outdoor ambient lt 5 C T outdoor tubes 6 C 3 5 CST outdoor ambient lt 2 C T outdoor tubes 8 C 4 10 outdoor ambient lt 5 C T outdoor tube T compensatory lt T outdoor ambient 3 C 5 T outdoor ambient lt 10 C outdoor tube T compensatory lt outdoor ambient 3 C after energizing T compensatory 0 C during the first defrosting if it is not the first defrosting T compensatory is confirmed by T outdoor tube of quitting last defrosting a when T outdoor tube gt 2 C T compensatory 0 C b when T outdoor tube lt 2 C T compensatory 3 C At that time the indoor fan stops and the compressor stops and after 30 seconds the outer fan will stop and then after 30 seconds the four way valve will stop After 30 seconds the compressor is initiated for raising the frequency to defrost frequency When the compressor has operated under defrost mode for 7 5 minutes or T outdoor ambient 2 10 C the compressor will be converted to 46Hz operation After 30 seconds the compressor will stop And after another 30 seconds the four way valve will be opened and after 60 seconds the compressor and the outer fan will be started the indoor fan will run under preset cold air prevention conditions and H1 will be displayed at temperature display area on the display panel Defrost frequency is 85H
58. he wiring terminal FA of electronic expansion valve is well connected Y Y EKV coil of electronic expansion valve N Connect wire according to wiring diagram Check the situation of refrigerant if there is leakage please charge refrigerant according to the service manual Is the malfunction eliminated N Compressor overload protection terminal is not connected well with the mainboard reconnect them correctly N Is the malfunction eliminated eat exchange of unit is not good heat exchanger is dirty and unit radiating environment is bad improve the radiating environment and clean the heat exchanger N Is the malfunction eliminated Too much load of the system causes high temperature of compressor after working for a long time decrease the load for operation 15 the malfunction eliminated Replace outdoor mainboard AP1 v End Installation and Maintenance Service Manual 11 PFC correction for power factor malfunction outdoor unit malfunction Main detection points Check if power plug is connected well with the socket Check if the reactor of outdoor unit is damaged Malfunction diagnosis process If power plug is connected well with the socket Connect the plug correctly Is the malfunction eliminated Check the
59. igh speed and middle speed middle speed and low speed high speed and low speed running time of 3 5 minutes must be ensured Fan mode is the same as cooling mode 7 Buzzer Control The buzzer will send a Di sound when the air conditioner is powered up or received the information sent by the remote control or there is a button input the single tube cooler doesnt receive the remote control ON signal under the mode of heating mode 8 Auto button If the controller is on it will stop by pressing the button and if the controller is off it will be automatic running state by pressing the button swing on and light on and the main unit will run based on the remote control if there is remote control order 9 Up and Down Swinging Control When power on the up and down motor will firstly move the air deflector to counter clockwise close the air outlet After starting the machine if you dont set the swinging function heating mode and auto heating mode the up and down air deflector will move to D clockwise under other modes the up and down air deflector will move to L1 If you set the swinging function when you start the machine then the wind blade will swing between L and D The air deflector has 7 swinging states Location L Location A Location B Location C Location D Location L to Location D stop at any location between L D the included angle between L D is the same The air deflector will be closed at O Location and the swinging is ef
60. ill stop 43 while indoor operate Refer to the malfunction analysis During heating operation the complete unit will stop operation 43 44 Malfunction Name Malfunction of phase current detection circuit for compressor Malfunction of voltage dropping for DC bus bar Malfunction of complete units current detection Zero crossing malfunction of outdoor unit Frequency limiting power Compressor running Frequency limiting module temperature Display Method of Indoor Unit Service Manual Display Method of Outdoor Unit Indicator has 3 kinds of Indicator Display during Dual g Dlinking 0 55 and OFF Code Displ AE Operation Cool Heating Yellow Red Indicator Indicator Indicator Indicator Indicator Indicator and blink 13 times OFF 3S and blink and blink 18 times display status and during 0 5s OFF 3S and blink 13 times OFF 3S and blink 20 times and blink once blinking ON 0 5s and OFF status Possible Causes Green During cooling and drying operation compressor will stop while indoor fan will operate outdoor control panel 1 During heating operation the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate voltage is unstable During heating operation the complete unit will stop During cooling and drying operation the c
61. inds of Indicator Display during Dual g Dlinking ON 0 55 and OFF display status and during blinking ON 0 5s and OFF Malfunction Name Green Indicator OFF 3S and blink once OFF 3S and blink twice OFF 3S and blink 3 times 6 times OFF 3S and blink 4 times status When the outdoor unit receive signal of Gathering refrigerant system will be forced to run under cooling mode for gathering refrigerant During cooling and drying operation indoor unit operates while other loads will stop during heating operation the complete unit will stop operation AC stops operation once reaches the setting temperature Cooling drying internal fan motor stops operation while other loads stop operation heating AC stop operation During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation During cooling and drying operation compressor stops while indoor fan will operate During heating operation the complete unit will stop operation Service Manual Possible Causes Nominal cooling mode 1 Loosening or bad contact of indoor ambient temp sensor and mainboard terminal 2 Components in mainboard fell down leads short circuit 3 Indoor ambient temp sensor damaged check with sensor resistance value chart 4 Mainboard damaged 1 Loosening or bad contact of Indoor evaporator temp sensor and
62. ing the motor support Lift motor support to re move it 10 Remove clapboard sub assy Clapboard Sub Assy STI Loosen the screws of the Clapboard Sub Assy The Clapboard Sub Assy has a hook on the lower side Lift and pull the Clapboard Sub Assy to remove 92 Installation and Maintenance Service Manual mel O O 1 11 Remove Compressor Remove the 2 screws fixing the gas valve Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve Note it is necessary to warp the gas valve when unsoldering the welding spot Remove the 2 screws fixing liquid valve Unsolder the weld ing spot connecting liquid valve and remove the liquid valve Remove the 3 footing screws of the compressor and remove the compressor Installation and Maintenance Liquid valve Gas valve Compressor 93 Appendix Appendix 1 Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree Tf Tcx1 8 32 Set temperature Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit CE Celsius CC temperature Celsius 60 8 62 6 64 4 66 2 0 68 2 Ambient temperature Fahrenheit Fahrenheit display Fahrenheit Te display Fahrenheit 5 temperature CF Celsius CC temperature CF
63. ion should be able to withstand the weight of indoor unit and won t increase noise and vibration 6 The appliance must be installed 2 5m above floor 7 Don t install the indoor unit right above the electric appliance 8 The appliance shall not be installed in the laundry 3 Outdoor unit 1 Select a location where the noise and outflow air emitted by the outdoor unit will not affect neighborhood 2 The location should be well ventilated and dry in which the outdoor unit won t be exposed directly to sunlight or strong wind 3 The location should be able to withstand the weight of outdoor unit 4 Make sure that the installation follows the requirement of installation dimension diagram 5 Select a location which is out of reach for children and far away from animals or plants If it is unavoidable please add fence for safety purpose 34 Service Manual 8 4 Electric Connection Requirement 1 Safety precaution 1 Must follow the electric safety regulations when installing the unit 2 According to the local safety regulations use qualified power supply circuit and air switch 3 Make sure the power supply matches with the requirement of air conditioner Unstable power supply or incorrect wiring may result in electric shock fire hazard or malfunction Please install proper power supply cables before using the air conditioner Air conditioner Air switch capacity 12K 16A 4 Properly connect the live
64. l connected and compressor COMP and the connection sequence is correct connect it according to wiring diagram gt Does the unit start up normally If the refrigerant charging 4 N amount is too much Charge the refrigerant according to service manual Does the unit y start up normally gt N Replace outdoor mainboard AP1 Is the malfunction gt eliminated N Replace the compressor Installation and Maintenance Service Manual 10 Overload and high discharge temperature malfunction Main detection points If the electronic expansion valve is connected well Is the electronic expansion valve damaged If the refrigerant is leaked The compressor overload protection terminal is not connected well with the mainboard If the overload protector is damaged Heat exchange of unit is not good heat exchanger is dirty and unit radiating environment is bad Too much load of the system causes high temperature of compressor after working for a long time Malfunction of discharge temperature sensor gt Installation and Maintenance 55 Service Manual 56 protector C H3 or E4 is displayed D 30min after power off the unit If the overload protector SAT well connected Under ambient temperature est the resistance of overload protector with ohmmeter resistance value should 10000hm If t
65. le e When selecting fan mode the air conditioner will only blow fan no cooling and no heating All indicators are OFF Operation indicator is ON Press FAN button to adjust fan speed Press 51 button to adjust fan blowing angle e When selecting heating mode the air conditioner operates under heat mode Heat indicator X amp on indoor unit is ON Press or button to adjust set temperature Press FAN button to adjust fan speed Press 21 button to adjust fan blowing angle Cooling only unit won t receive heating mode signal If setting heat mode with remote controller press ON OFF button can t start up the unit Note e For preventing cold air after starting up heating mode indoor unit will delay 1 5minutes to blow air actual delay time is depend on indoor ambient temperature e Set temperature range from remote controller 16 30 C Fan speed auto low speed medium speed high speed 3 or Button e Press or button once increase or decrease set temperature 1 Holding or button 2s later set temperature on remote controller will change quickly On releasing button after setting is finished temperature indicator on indoor unit will change accordingly Temperature can t be adjusted under auto mode e When setting TIMER ON TIMER OFF or CLOCK press or button to adjust time Refer to CLOCK TIMER ON TIMER OFF buttons 4 FAN Button Pressing this button can s
66. ly Never have it mixed with any other refrigerant Never have air remain in the refrigerant line as it may lead to rupture or other hazards 3 Make sure no refrigerant gas is leaking out when installation is completed 4 If there is refrigerant leakage please take sufficient measure to minimize the density of refrigerant 5 Never touch the refrigerant piping or compressor without wearing glove to avoid scald or frostbite Improper installation may lead to fire hazard explosion electric shock or injury e 9 Installation and Maintenance Service Manual Main Tools for Installation and Maintenance 1 Level meter measuring tape 2 Screw driver 4 Electroprobe 7 Electronic leakage detector 8 Vacuum pump 10 Pipe pliers pipe cutter 11 Pipe expander pipe bender Installation and Maintenance 3 Impact drill drill head electric drill 6 Torque wrench open end wrench inner hexagon spanner 9 Pressure meter 12 Soldering appliance refrigerant container 31 Service Manual 8 Installation 8 1 Installation Dimension Diagram Installation dimension diagram a E n _ SS ee 1 Space to the _ 00cm Above cm bove Air outlet side Space to the wall Space to the floor The dimensions of the space necessary for correct installation of the applia
67. motor is set too low Filter of indoor unit is blocked Check the filter to see it s blocked Clean the filter Installation position for indoor ck whether the installation postion is proper Adjust the installation position and install the RENE according to installation requirement for air outdoor unit is improper conditlinaf rainproof and sunproof for outdoor unit Discharged air temperature during cooling is higher than normal discharged wind temperature Discharged air temperature during heating is Find out the leakage causes and deal with it lower than normal discharged wind temperature Add refrigerant Unit s pressure is much lower than regulated range Malfunction of 4 way valve blow cold wind during heating Replace the 4 way valve Discharged air temperature during cooling is higher than normal discharged wind temperature Discharged air temperature during heating is Malfunction of capillary lower than normal discharged wind temperature Replace the capillary Unit t pressure is much lower than regulated range If refrigerant isn t leaking part of capillary is blocked Flow volume of valve is Pressure at the valve is much lower than the Open the valve completely insufficient regulated rangei Malfunction of horizontal louver Horizontal louver can t swing f point sot maintenance method for Malfunction of the IDU fan motor The IDU fan motor can t operate Refer to troubleshooting for H6 for maintenanc
68. mperature is too high Refrigerant is insufficient Malfunction of electric expansion valve EKV Poor air return in indoor unit or fan speed is too low 1 Measure the voltage of position L and N on wiring board XT if the voltage is higher than 265VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacitor C on control panel AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 1 Measure the voltage of position L and N on wiring board XT if the voltage is higher than 150VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacitor C on control panel AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 Showing during min cooling or min heating test Showing during nominal cooling or nominal heating test Showing during max cooling or max heating test 41 sensor circuit Display Method of Outd Display Method of Indoor Unit BRAY ni Indicator has 3 kinds of Indicator Display during display status and during blinking ON 0 5s and OFF 0 5s during blinking ON 0 25s during blinking ON 0 25s status During cooling and drying operation compressor will stop while indoor fan will operate
69. nce including the minimum p permissible distances to adjacent structures A Space to the obstruction i MES DADA 5 D a NG 10161 side YA LA A J gt 2 IN Above F Space to the wall Sp ace to the wall 2 E 50 Above gt Air outlet side 32 Installation and Maintenance Service Manual Installation procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit installation location Select outdoor unit installation location Install wall frame drill Ge the support of outdoor unit y n wall holes select it according to the actual situatio Ce pipes of D unit and drai nage pipe Connect wires Fix outdoor unit of indoor unit Ga drainage joint of outdoor unit only for coolin g and heating unit Bind up pipes and hang the indoor unit Make the bound pipes pass through the wall hole and then connect outdoor unit Connect pipes of outdoor unit Connect wires of outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Note this flow is only for reference please find the mor
70. ndoor fan operates During heating operation all loads stop During cooling operation compressor stops while indoor fan motor operates During heating operation the complete unit stops 1 Supply voltage is unstable 2 Supply voltage is too low and load is too high 3 Evaporator is dirty Refer to the corresponding malfunction analysis and blink 6 times During cooling operation compressor will stop while indoor fan will operate During heating operation the complete unit stops During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop All loads operate normally while operation frequency for compressor is decreased Wireless remote receiver and button are effective but can not dispose the related command Refer to the malfunction analysis overload high temperature resistant Replace outdoor control panel AP1 Discharging after the complete unit is de energized for 20mins check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly If its no use please replace control panel AP1 1 No jumper cap insert on mainboard 2 Incorrect insert of jumper cap 3 Jumper cap damaged 4 Abnormal detecting circuit of mainboard 39 Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 k
71. nexansonvae Operation temp 16 30 Condenser Fom E Fan Motor Capacitor OOOO O o eem OS Defrosting Method O emae M Moisture O Permissible Excessive Operating Pressure for the EE Permissible Excessive Operating Pressure for the en weet Sound Power Level H M L dB A 63 Refrigerant rwa Gas Additional Charge g m 20 oo Note The connection pipe applies metric diameter The above data is subject to change without notice please refer to the nameplate of the unit Technical Information Service Manual Heating 2 2 Operation Characteristic Curve Cooling N 2 eS t __ OzEg 1 5 P gt 81 0 NEN 2 See Tc ue EN EA ee kasas gt SAS 25523 LATE g Bie OD GT UO Bees x 4 2 SERES We i n Le Les 21 COS MUN ANN SING SEE ee ere eS
72. ng to the prolonged length of liquid pipe The additional refrigerant charging amount per meter is different according to the diameter of liquid pipe See the following sheet e Additional refrigerant charging amount prolonged length of liquid pipe X additional refrigerant charging amount per meter Additional refrigerant charging amount for R22 R407C R410A and R134a Diameter of connection pipe Outdoor unit throttle Liquid pipe mm Gas pipe mm Cooling only g m Cooling and heating g m 9 9950912 15 06 or 09 5 16 19 15 15 15 30 50 350 919 or 22 2 25 4 or 031 8 222 7 390 E 2 2 250 350 Installation and Maintenance Service Manual Appendix 3 Pipe Expanding Method A Note Improper pipe expanding is the main cause of refrigerant leakage Please expand the pipe according to the following steps Y 90 the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit e Cut the required pipe with pipe cutter B Remove the burrs e Remove the burrs with shaper and prevent the burrs from getting into the pipe C Put on suitable insulating pipe D Put on the union nut Union pipe e Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the pipe Pipe E Expand the port e Expand the port with expander Note e A is different according to the diameter please refer to th
73. of the cross flow blade and the motor Take down the motor remove the motor Motor Press Plate Remove the cross flow blade Cross Flow Blade Installation and Maintenance 88 Service Manual 11 2 Removal Procedure of Outdoor Unit Warning Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal Procedure 1 Remove big handle Before disassamble Remove 1 connection screw fixing big handleand then removethe big handle big handle 2 Remove top cover top cover Remove 3 connection screws among top cover plate front panel and right sideplate Then remove top cover plate Installation and Maintenance Service Manual Sew 3 Remove grille and front panel Remove connection screws between the front grille and the front panel Then remove the front grille Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel 4 Remove axial flow blade Axial flow blade Remove the nut fixing the blade and then remove the axial flow blade 5 Remove right side plate Remove connection screws connecting the right
74. ompressor will ae Theres circuit malfunction on stop while indoor fan will outdoor units control panel AP1 operate please replace the outdoor units During heating operating 8 Fe 9 control panel the complete unit will stop operation During cooling operation compressor will stop while indoor fan will operate during Replace outdoor control panel AP1 heating the complete unit will stop operation OFF 1S and blink 13 times OFF 1S and blink 8 times OFF 1S and blink 11 times 1 Supply voltage is lower than If this malfunction occurs AC175V during 2 Wiring terminal 4V is loosened or heating operation the complete broken unit will stop operation 3 4V is damaged please replace AV Installation and Maintenance Service Manual Display Method of Indoor Unit Indicator Display during Dual 8 blinking ON 0 55 and OFF Malfunction Name Display Operation Heating Normal communica tion Defrosting Installation and Maintenance Indicator Indicator Indicator during blinking ON 10s and OFF 0 55 Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Yellow Indicator OFF 1S and blink twice Red Green Indicator Indicator OFF 0 5S and blink once status Possible Causes Defrosting will occur in heating mode Compressor will Its the normal state operate while ind
75. on occurs six times in succession the compressor will not be started again Overload protection If temperature sensed by the overload sensor is over 115 C the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds If temperature is below 95 C the overload protection will be relieved C DC bus voltage protection If voltage on the DC bus is below 150V or over 420V the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds When voltage on the DC bus returns to its normal value and the compressor has stayed at stop for at least 3 minutes the compressor will resume its operation Faults of temperature sensors 3 Other Controls 1 ON OFF Press the remote button ON OFF the on off state will be changed once each time you press the button 2 Mode Selection Press the remote button MODE then select and show in the following ways AUTO COOL DRY FAN HEAT AUTO 3 Temperature Setting Option Button Each time you press the remote button TEMP or the setting temperature will be up or down by 1 C Regulating Range 16 30 C the button is useless under the AUTO mode 4 Time Switch You should start and stop the machine according to the setting time by remote control 5 SLEEP State Control 1 In cooling mode 1 1 When the initial set temperature is 16 23 C the temperature will rise 1 C by every hour after sleep function is set the temperature will not change
76. oor fan will stop operation 45 Service Manual 9 2 Troubleshooting for Main Malfunction 1 Malfunction of Temperature Sensor F1 F2 Troubleshooting for UN c F1 F2 malfunction Is the wiring terminal between the temperature sensor andthe controller loosened or poorly contacted Insert the temperature sensor tightly no Is there short circuit due to trip over of the parts Make the parts upright no NM ix eliminated ye Is the emperature sensor normal accordin to the Resistance no Table Replace it with a temperature sensor with the same model yes 4 15 malfunction remove v Replace the mainboard with the same model yes End 46 e Installation and Maintenance Service Manual 2 Malfunction of Blocked Protection of IDU Fan Motor H6 Troubleshooting for H6 malfunction Stir the blade with a tool to see whether the blade rotates n Tighten the screw reassemble the blade motor Measure the voltage of this foot to neutral wire on the mainboard Installation and Maintenance and shaft bearing rubber base sub assy to make yes sure there is no foreign object between them no
77. or Buttons on Remote Controller Note After putting through the power the air conditioner will give out a sound Operation indictor 1 is indicator After that you can operate the air conditioner 1 ON OFF Button by using remote controller Press this button can turn on or turn off the air conditioner After turning on the air conditioner operation indicator b on indoor unit s display is ON green indicator The colour is different for different models and indoor unit will give out a sound 2 MODE Button Press this button to select your required operation mode AUTO COOL DRY FAN HEAT C 3 64 9 HJ Technical Information Service Manual e When selecting auto mode Air conditioner will start auto operation according to indoor ambient temperature Set temperature can t be adjusted and will not be displayed as well Press FAN button can adjust fan speed Press 31 button can adjust fan blowing angle e After selecting cool mode air conditioner will operate under cool mode Cool indicator on indoor unit is ON Press or button to adjust set temperature Press FAN button to adjust fan speed Press 21 button to adjust fan blowing angle e When selecting dry mode the air conditioner operates at low speed under dry mode Dry indicator on indoor unit is ON Under dry mode fan speed can t be adjusted Press 31 button to adjust fan blowing ang
78. outdoor fan will delay 30 seconds to stop and the indoor fan will run at the set speed If Tpreset 2 C lt Tamb STpreset the unit will keep running in the previous mode In this mode the reversal valve will not be powered on and the temperature setting range is 16 C 30 C Tamb Start cooling Tpreset Original operating status Tpreset 2 e gt 6 min gt 3 min 26min Stop cooling Compressor Outdoor fan Indoor fan Setting fan ZF Stop Protection function Overcurrent protection If total current is high the compressor will run in limited frequency If total current is too high the compressor will stop the outdoor fan will delay 30 seconds to stop indoor unit will display E5 and outdoor yellow light will blink 5 times Antifreezing protection When the antifreezing protection is detected the compressor will stop the outdoor fan will stop after 30 seconds and the indoor fan and swing motor will keep running in the original mode When antifreezing protection is eliminated and the compressor has stopped for 3 minutes the compressor will resume running in the original mode During antifreeze protection Compressor 23min f Outdoor fan 4 Indoor fan Preset speed PA CRON in Stop 2 Dehumidifying Mode Working conditions and process of dehumidifying If T amp gt T presa the unit will enter
79. r oil leakage is the temperature of the shell too high etc gt Replace the mainboard with the same model Malfunction is eliminated Replace the mainboard with the same model yes yes lt End Installation and Maintenance 50 5 Malfunction of Zero crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Troubleshooting for U8 malfunction Re energize1 minute after de erergization U8 is still displayed Yes The zero cross detection circuit of the mainboard is defined abnormal Replace the mainboard with the same model End No gt The unit returns to normal Conclusion U8 is displayed due to instant energization afte de energization while the capacitor discharges slowly Service Manual Installation and Maintenance Service Manual 6 Capacity charging malfunction outdoor unit malfunction AP1 below means control board of outdoor unit Main detection points Detect if the voltage of L and terminal of XT wiring board is between 210VAC 240VAC by alternating voltage meter Is reactor L well connected Is connection wire loosened or pulled out Is reactor L damaged Turn on the unit and wait 1 minute Use AC voltmeter to measure the voltage on the two ends of electrolytic capacitor see fig 30
80. r unit is good E8 is displayed If the outdoor ambient temperature is higher than 53 C Normal protection please Y use it after improving the outdoor ambient temperature Improve the radiating environment Y of unit clean the heat exchanger and remove surrounding chetaies If the radiating of indoor and outdoor unit is good normally If the indoor and outdoor fan are running normally Connect normally Y Replace outdoor Fan capacitor is broken mainboard N Motor is broken voe Renace mor N End Unit restarts normally Unit restarts Adjust the connection capacitor Installation and Maintenance Service Manual 54 9 Start up failure LC AP1 below means control board of outdoor unit Main detection points f the compressor wiring is correct If the stop time of compressor is sufficient f the compressor is damaged If the refrigerant charging amount is too much ue on the unit The stop time is not sufficient and If the stop time of compresso the high and low pressure of system N 7 gt is more than 3min is not balanced please start the uni after 3min Check the connection situation the compressor wire of outdoor mainboard AP1 and COMP UVW is wel
81. stance kQ Resistance kQ 29 853 5 10 49 18 34 88 4 754 8 11 93 42 17 65 4 609 12 89 07 16 99 4 469 703 8 13 84 95 16 36 4 334 eoe i75 2 420 ar mem _ 16 mes 5 3058 95 z 9 a 1 oa s 1 s 199 Das assa 20 5 122 42m 2 sm 9 17 9 z 9 6 3 sn o m 328 25 4919 9 10 26 6 108 gt 27 6 106 mn 29 asie o eR 8 e f essa 108 95 3841 96 378 97 3619 98 3514 99 100 335 1001 322 4 3629 24 63 102 3129 109 304 104 295 105 2872 106 2792 107 2715 108 264 3 841 3 728 3 619 3 514 3 413 3 315 3 22 3 04 2 955 2 872 2 792 2 715 2 64 2 568 8 245 6 37 96 8 555 109 7 232 6 36 38 8 268 110 2 498 2 431 6 220 5 34 88 7 991 111 5 33 45 7 726 112 2 365 es Ts ve 74 3 232 E was 3 6908 ms 22 3 amp 5 7 me 29 1 75 m 2
82. t 845 180 GLZ 3 2 Outdoor Unit 2 09 2 09 B2VO 12 C2VO 12 257 714 paso L JL J eS Unit mm 12 e Technical Information Service Manual Technical Information 13 14 4 Refrigerant System Diagram Cooling and heating model Indoor unit Service Manual Outdoor unit Gas pipe side JE Valve Heat Compressor evaporator Heat i m exchanger Liquid pipe 4 condenser side cw A Valve Strainer Electron Strainer expansion valve Connection pipe specification Liquid pipe 1 4 6mm Gas pipe 3 8 9 52mm 4 COOLING HEATING Technical Information Service Manual 5 Electrical Part 5 1 Wiring Diagram elnstruction Symbol Symbol Color Symbol Symbol Color Symbol mb Re w O bomme Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model e Indoor Unit
83. to the drain vent As show in Fig 19 3 Fix Outdoor Unit 1 Place the outdoor unit on the support 2 Fix the foot holes of outdoor unit with bolts As show in Fig 20 Foot holes Screw handle Foot holes Fig 21 Fig 20 4 Fix Outdoor Unit 1 Remove the screw on the right handle of outdoor unit and then remove the handle As show in Fig 21 2 Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe As show in Fig 22 Liquid valve Liquid pipe Pipe joint E gas pipe RD BO Union nut gas valve Fig 22 3 Pretightening the union nut with hand 4 Tighten the union nut with torque wrench Installation and Maintenance Refer to the following table for wrench moment of force Hex nut diameter mm Tightening torque N m 00 15 20 09 52 30 40 45 55 60 65 70 75 5 Connect Outdoor Electric Wire 1 Let the connection wire sleeve go through the two holes of baffle tighten the connection joint of sleeve and baffle remove the wire clip connect the power connection wire to the wiring terminal according to the color fix them with screws As show in Fig 23 yellow 7 green Connect to indoor unit Groundin ri 9 Wiring boad gt Wire clip Handle Fig 23 Note the wiring connect is for reference only please refer to the a
84. uired time Press TIMER OFF to confirm it The word OFF will stop blinking icon resumes displaying Cancel TIMER OFF Under the condition that TIMER OFF is started up press TIMER OFF button to cancel it Note e Under on and off status you can set TIMER OFF or TIMER on simultaneously e Before setting TIMER ON or TIMER OFF please adjust the clock time e After starting up TIMER ON or TIMER OFF set the constant circulating valid After that air conditioner will be turned on or turned off according to setting time ON OFF button has no effect on setting If you don t need this function please use remote controller to cancel it 8 X FAN Button Press this button under cool and dry mode to start up x fan function and 4 icon on remote controller will be displayed Press this button again to cancel x fan function and lt gt icon will disappear Note e When x fan function is on if the air conditioner is turned off indoor fan will still operate at low speed for a while to blow the residual water inside the air duct e During x fan operation press X FAN button to turn off x fan function Indoor fan will stop operation immediately 9 TEMP Button By pressing this button you can see indoor set temperature indoor ambient temperature or outdoor ambient temperature on indoor unit s display The setting on remote controlleris selected circularly as below Ca When selecting or no display with remote controll
85. utor or qualified person eAll electric work must be performed by a licensed technician according to local regulations and the instructions given in this manual eBe caution during installation and maintenance Prohibit incorrect operation to prevent electric shock casualty and other accidents N Warnings Electrical Safety Precautions 1 Cut off the power supply of air conditioner before checking and maintenance 2 The air condition must apply specialized circuit and prohibit share the same circuit with other appliances 3 The air conditioner should be installed in suitable location and ensure the power plug is touchable 4 Make sure each wiring terminal is connected firmly during installation and maintenance 5 Have the unit adequately grounded The grounding wire can t be used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire and grounding wire of power supply must be corresponding to the live wire neutral wire and grounding wire of the air conditioner 8 The power cord and power connection wires can t be pressed by hard objects 9 If power cord or connection wire is broken it must be replaced by a qualified person 30 10 If the power cord or connection wire is not long enough please get the specialized power cord or connection wire from the manufacture or distributor Prohibit prolong the wire by yourself 11
86. wing table for wrench moment of force Hex nut diameter mm Tightening torque N m 15 20 09 52 30 40 45 55 60 65 70 75 6 Install Drain Hose 1 Connect the drain hose to the outlet pipe of indoor unit As show in Fig 8 2 Bind the joint with tape As show in Fig 9 Drain hose Outlet pipe Tap K t Drain hose utle Fig 8 MU i Note 1 Add insulating pipe in the indoor drain hose in order to prevent condensation 2 The plastic expansion particles are not provided As show in Fig 10 a 2 hose CN Insulating pipe Fig 1 0 35 7 Connect Wire of Indoor Unit 1 Open the panel remove the screw on the wiring cover and then take down the cover As show in Fig 11 Panel Screw FEH Fig 11 Wiring cover 2 Make the power connection wire go through the cable cross hole at the back of indoor unit and then pull it out from the front side As show in Fig 12 Fig 12 3 Remove the wire clip connect the power connection wire to the wiring terminal according to the color tighten the screw and then fix the power connection wire with wire clip As show in Fig 13 Cooling and heating unit yellow green Note The wiring connect is for reference only please refer to the actual one Fig 13 4 Put wiring cover back and then tighten the screw 5 Close the panel Note
87. wire neutral wire and grounding wire of power socket 5 Be sure to cut off the power supply before proceeding any work related to electricity and safety 6 Do not put through the power before finishing installation 7 For appliances with type Y attachment the instructions shall contain the substance of thefollowing If the supply cord is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard 8 The temperature of refrigerant circuit will be high please keep the interconnection cable away from the copper tube 2 Grounding requirement 1 The air conditioner is first class electric appliance It must be properly grounding with specialized grounding device by a professional Please make sure it is always grounded effectively otherwise it may cause electric shock 2 The yellow green wire in air conditioner is grounding wire which can t be used for other purposes 3 The grounding resistance should comply with national electric safety regulations 4 The appliance must be positioned so that the plug is accessible 5 An all pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring 6 Including an air switch with suitable capacity please note the following table Air switch should be included magnet buckle and heating buckle function it can protect the circuit short and overload Caution please
88. z Protection Cold air prevention The unit is started under heating mode the compressor is ON In the case of T indoor amb lt 24 C if T tube lt 40 C and the indoor fan is at stop state the indoor fan will begin to run at low speed with a time lag of 2 minutes Within 2 minutes if T tube gt 40 C the indoor fan also will run at low speed and after 1 minute operation at low speed the indoor fan will be converted to operation at preset speed Within 1 minute low speed operation or 2 minute non operation if T tube gt 42 C the fan will run at present speed In the case of T indoor amb 224 C if T tube lt 42 C the indoor fan will run at low speed and after one minute the indoor fan will be converted to preset speed Within one minute low speed operation if T tube gt 42 C the indoor fan will be converted to preset speed Note T indoor amb indicated and 0 refers to under initially heating mode the indoor ambient temperature before the command to start the compressor is performed according to the program or after the unit is withdrawn from defrost the indoor ambient temperature before the defrost symbol is cleared Total current up and frequency down protection If the total current Itotals6A frequency rise will be allowed if Itotal27A frequency rise will not be allowed if Itotal28A the compressor will run at reduced frequency and if Itotal29A the compressor will stop and the outdoor fan will stop with

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