Service Manual - Air
Contents
1. Im Ss THE unitA _ unit C o unit D L1 L2 N02 3 Na No2 3 N 2 3 alale e elle E lg ES 18 Bee Eee e To the power supply D nues lt No Ts wale 2 Ts wale 3 outdoor unit ge e i 9 31 1 1 1 H Indoor unit N 2 3 2 3 2 2 3 G B C D HANDLING After having removed the packaging check that the A Handling must be done by suitablye quipped qualified contents are intact and complete technical personnel using equipment that is suitable for The outdoor unit must always be kept up right the weight of the appliance 21 22 7 4 Check After Installation Installation Manual Check Items Problems Owing to Improper Installation Is the installation reliable The unit2. d 2 uni _ E To unit B To C ME T MAE AOL L1 L2 2 Nit 2 2 3 RS rcm co Been E To the power supply ues hole fs fel 3 2 3 unit 8 ut JG Q 9 Indoor unit 2 3 2 3 2 3 O B C connection cab tion cable connection Power cable 1 The power cable should be put in from the hole under connection cable cover 2 Ifconnecting with two indoor units the connection cable should be put in from hole A and hole B 3 If connecting with three indoor units the connection cable should be put in from hole A B and C 4 If connecting with four indoor units the connection cable should be put in from hole A B C and D All power cables and connection cables must be protected with conduits Installation Manual A16CM4H4R30 D i bl 1 Remove the handle at the right side plate of the Cuil outdoor unit ten screw C connection cable 2 Remove the cable c
3. 1 A16CM4H4R18 e TOP VIEW 1 2 3 4 5 6 7 8 9 1 Compressor interface Bl STAG d ovc poe WA C OFAN av HEAT ES 2 Unit A liquid valve 635 x o and gas valve U A Toi mt 3 Unit B liquid valve we m and gas valve C29 wc al 4 Compressor overload 10 a protector jm RI 22 S mas 11 5 Temperature sensor 625 he OFAN wt R17 09 E ud pu M x amp 6 Compressor electric v Ll heater 39c20 w U CU Yu A L 12 8 up 7 Outdoor fan 0 Ta porto a i E 8 4 way valve m LE Chassis electric p TE d 9 E os LAE Jen s heater reserved E 5 ie 10 Unit A electronic Q 2 ks ON 13 expansion valve Ki ce lt E Unit B electronic Qi 4 11 expansion valve L Communication e e a 12 interface with indoor 5 e GRawa36 A1 VI 2010 10 13 10 MARK AREA 9 mas 8 unit Tht 0111213 4 5 6 7 8 9 N2 ca 13 Communication 17 16 15 neutral wire 14 Live wire of power e BOTTOM VIEW supply 15 Neutral ire of power supply 16 Reactor interface1 u HE NNN 52 17 Reactor inter
4. A16CM4H4R18 1 Remove the handle at the right side plate of the A16CM4H4R18 outdoor unit six screw 2 Remove the cable clamp connect the connection cable and power cable f i a with the terminal at the row of connection and fix the connection The fitting line distributing must be EZ consistent with the indoor unit terminal of line bank B Wiring should meet that of indoor unit F Zi NR ront 3 Fix power connection wire by wire clamp side plate 4 Ensure wire has been fixed well IMS 5 Install the handle N i 112 2 3 2 3 g r ESI syv 2 An all pole disconnection switch having a contact Ex er qu separation of at least 3mm in all pole should be connected in fixed wiring To the power supply POWER B Wrong wire connection may cause malfunction of some 12 2 3 2 3 G5 p N electric components After fixing cable ensure that 30 IT L2 leads between connection to fixed point have some space 1 LEINE The connection pipes and the connectiong wirings of 1 23 2 3 e the unit A and unit B must be corresponding to each 5 i other respective The appliance shall be installed in accordance with national wiring regulations Note the above
5. 12 Function and Control 6 Function and Control 1 Basic functions of the system 1 1 Cooling Mode 1 1 1 Cooling conditions and process If the compressor is in stop status and start the unit for cooling operation when one of the indoor units reaches the cooling operation condition the unit start cooling operation in this case the electronic expansion valve the outdoor fan and the compressor start operation 1 1 2 Stop in cooling operation 1 1 2 1 Compressor stops The compressor stops immediately the outdoor fan stops after 1min 1 1 2 2 Some of the indoor units reach the stop condition the compressor does not stop The compressor operates immediately according to the required frequency For the indoor unit with no requirement the corresponding electronic expansion valve is closed to OP 1 1 3 Cooling mode transfers to heating mode When the unit transfers to heating mode the 4 way valve is energized after the compressor stops for 2min The other disposals are the same as stopping in cooling mode 1 1 4 4 way valve in this mode the 4 way valve is closed 1 1 5 Outdoor fan control in cooling mode The outdoor fan starts before 5s of the starting of compressor The outdoor fan will run in high speed for 3min after starting and then it will run in set speed The fan shall run at every speed for at least 80s When t
6. Unit mm 41 Og PELLET 396 Unit mm 700 Refrigerant System Diagram 4 Refrigerant System Diagram indoor outdoor filter fan gt heat exchanger A1 c 5 T C C filter AT outdoor heat exchanger 4 way valve heat exchanger B4 lt filter B2 high pressure switch Note Not available for 14K 18K is model J discharge silencer C heat exchanger C1 C3 discharge temperature filter C2 sensor e E lt Dh h 8 D3 D1 E 3 s U cs n filter D2 gas liquid separator 2 E Note Not available for 14K 18K mod A1 A unit electronic expansion valve B1 B unit electronic expansion val
7. A16CM4H4R24 A16CM4H4R30 1 Safety Precautions Installing starting up and servicing air conditioner can be hazardous due to system pressure electrical components and equipment location etc Only trained qualified installers and service personnel are allowed to install start up and service this equipment Untrained personnel can perform basic maintenance fun ctions such as cleaning coils All other operations should be performed by trained service personnel When handling the equipment observe precautions in the manual and on tags stickers and labels attached to the equipment Follow all safety codes Wear safety glasses andwork gloves Keep quenching cloth and fire extinguisher nearby when brazing Read the instructions thoroughly and follow all warnings or cautions in literature and attached to the unit Consult local building codes and current editions of national as well as local electrical codes Recognize the following safety information Incorrect handling could result in personal injury or death Incorrect handling may result in minor injury or damage to product or property N Warning All electric work must be performed by a licensed technician according to local regulations and the instructions given in this manual Before installing modifying or servicing system main electrical disconnect switch must be in the OFF position There may be more than 1 disc
8. SSN g Remove the screws connecting the left side pla teand the chassis and then remove the left side plateassy XN AN ANNL 45 Removal Procedure Poe 4 Remove the axial flow fan Remove the nuts fixing the blade and thenremove the axial flow fan Axial Flow Fan Remove the 4 tapping screws fixing the motor dis connect the leading wire insert of the motor and then remove the motor Remove the 2 tapping screws fixing the motor support and then pull the motor sup port upwards to remove it fan motor fixing frame fan motor 5 Remove Electric Box Assy Remove the screws fixing the electric box sub assy loosen the wire bundle pull out the wiring terminals and then pull the electric box upwards to remove it Electric Box 46 Removal Procedure Steps Procedure 6 Remove soundproof sponge Tear up the soundproof sponge carefully 7 Remove reactor Remove screws connecting reactor and middle isolation sheet and then remove the reactor 8 Remove 4 way valve Discharge the refrigerant completely unsolder the pipelines connecting the compressor and the condenser assy and then remove the 4 way valve assy 2 5 Mi 5 p 5 h p Ved 5 Ved 2 5 SCS CSCS CSCS CSS ON NN SUS CSCS US CS US D D
9. No Description 1 Air outlet grille 2 Valve Note the above figures are only intended to be a simple diagram of the appliance and may not correspond to the appearance of the units that have been purchased 16 Installation Manual 7 2 Installing The Outdoor Unit Location Use bolts to secure the unit to a flat solid floor Tighten the connections using two wrenches working When mounting the unit on a wall or the roof make in opposite directions sure the support is firmly secured so that it cannot Caution Installation Must be Performed in Accordance move in the event of intense vibrations or a strong with the NEC CEC by Authorized Personnel Only Wind Install the drain fitting and the drain hose for Do not install the outdoor unit in pits or air vents model with heat pump only Condensation is produced and flows from the outdoor unit Installing the pipes when the appliance is operating in the heating mode In order Use suitable connecting pipes and equipment for the not to disturb neighbours and to respect the environment refrigerant RA10A install a drain fitting and a drain hose to channel the conden I sate water Install the drain fitting and rubber washer on the The refrigerant pipes must not exceed the maximum outdoor unit chassis and connect a drain
10. f1 2 Famo h _ 2 jeerowrm 26 T Part Code Description NO A16CM4H4R18 12 13 14 15 16 BE a o 4 ETIN t EE EMI 45 46 ad The data above are subject to change without notice Exploded Views and Parts list 2 A16CM4H4R24 Hl gt Ki ems NE ENE SEEN SK 25 26 Exploded Views and Parts list Wr Part Code Description NO A16CM4H4R24 Qty 3 eon 1 _ gt pm _ a YC a _ oss 4 1 s pumapcomde 00230 6 pomrwoan ng _ kompressorcaset _ Separatorassy 02207 aine 3 Right sidePlate sosser fr 1 0703660 gt omme 13 puonaw big handleassy oms Terminal cover SubAssy 16 temperature Sensor 17 temperature Sensor 30 18 temperature Sensor 3900702 9 Flectic Expand VaveFiting 4399842 _ 20 EecrmeExensonvavese 0366 1 _ 2 Flectic Expand VawveFiting 22 FereexpandvaveFiting 4000 m Magnetcoi __ 4000005 2 bwayvavensy
11. W OVC CONP E 2 5 LX2 2 5 E ts WHE KERR YESS WH OG BU XTD 5 5 5 5 LX2 1 U EN 66 OG FA FG mis xe PENE YE m Main Boar OFAN TUBE A TUBE B TUBE C TUBED HC RO D SST ci x x X G WH BK YE BU WH BK RD ER VEE A WKN i nD ai WD M lu 0 am o qi RIS LAT UR 18 LIRI Gas Vahe Liquid Valve Liquid Vale Gas Valve liquid Valve Gas Vale Liquid Valve TEMSENSOR TEMSENSOR TEMSENSOR TEMSENSOR TEMSENSOR TEMSENSOR TEMSENSOR TEMSENSOR H FANMOTOR G p IN WARNING 4 BN BROWN WH WHITE COME Please don t touch any terminal when the voltage BU BLUE YE YELLOW of terminal and N DC at AP1 is higher BK BLACK RD RED than 30V to prevent the risk of electrical shock GY GRAY YEGN YELLOW GREEN These circuit diagrams are subject to change without notice please refer to the one supplied with the unit 10 Schematic Diagram 5 3 Printed Circuit Board
12. electric heater Interface of compressor electric heater belt FUSE N2 BU P Hr overload protector J Interface of chassis 2500 Vi 200 0 8 10 E rr 10 Outdoor fan interface 11 4 way valve interface 21 12 High voltage protection interface e BOTTOM VIEW 13 Interface of electronic expansion valve A Interface of electronic 9 1V3H g 1v3 mD Ya 01 81 01 o102 1 v 9cauruo 1 4 riim we T expansion valve B m m ni 9 Jag al 15 Interface of electronic p npe i expansion valve C LE ac IH Interface of electronic expansion valve D 16 Communication wire interface C Je 17 T CX caca p Communication neutral wire interface 18 cara 19 Input neutral wire interface 20 Input live wire interface I mta apa mja E GITE lt gt Je 53 24 PFC input live wire interface MARK AREA 22 PFC input neutral wire interface
13. 15 20 9 52 35 40 16 60 65 Vacuum pump 12 45 50 INDOOR 8 Secure 19 70 75 UNIT QI Refrigerant fluid direction of fiow 2 way valve 9 If the specification of outdoor unit gas valve is 3 8 3 way but curstomer needs to install 1 21 indoor unit so that it is need to use a pipe joint subassembly Code 06643008 6 Openby 1 4 turn 7 Turn to open fully to make a conversion joint with outdoor unit gas valve and Secure 7 Turn to open fully Valve connection pipe as show in following inlet Co Q 2 Turn Tum 2 Turn ns 8 Secure 8 Secure Connect to the M indoor unit A Use suitable instruments for the refrigerant R410A ponotuse any other refrigerant than R410A A Do not use mineral oils to clean the unit Installation Manual INSTALLATION DIMENSION DIAGRAM The installation must be done by trained and qualified service personnel with reliability according to this manual Contact service center before installation to avoid the malfunction due to unprofessional installation When picking up and moving the units you must be guided by trained and qualified person Ensure that the recommended spaceis left around the a ppliance A16CM4H4R18 Trt
14. Soundproof sponge 47 Removal Procedure Steps Procedure 9 Remove electronic expansion valve and cut off valve Remove electronic expansion valve and cut off electronic expansion valve valve Unsolder the spot weld between electronic expansion valve and cut off valve as well as the spot weld of connection pipe for condenser and then remove the expansion valve Meanwhile rotate out the electronic coil and then pull it upwards to remove it LS UXU3U3SU3U3U3U3 CSS TIN 10 Remove valve support sub assy Remove screws fixing valve support and chassis lt M and then remove the valve support sub assy d COME T valve support Talk sub assy 11 Remove isolation sheet Remove screws fixing isolation sheet and then remove the isolation sheet isolation sheet
15. g Fiter Board 042 gt 01 OUTROOM TE oy BU am TEMSENSOR ES ma APT 8 MI 5 ___ E a aWe au 6BU 6 N VALVE EM om Ko DE _ HS BIA ov HE ET gh Pressure Swich 3 BU igh Pressure Switc WH COM INNER Lo XTB 100 TBU ELECTRONIC TERMINAL EXPANSION VALVE 48WH T M FA FB FC 8j OVC COMP og 5 2 pem 22 s r 3 5 5 BU rotector wm ATC WH BK RD WH 05 LX2 1 EU 5 5 5 YE AYE x UM Vo No lt FB FC lt Ma W 5 AP Main Board 5 W BYEGN GN OFAN TUBE B TUBE C HEAT C 60 7 WH gt RD 24RD 23RD RD forny KUNA RM RIS RT6 RT8 M ENG QB LI acl YCL Congres de FAN MOTOR Wie TenSensr m AAWARNING Please don t touch any terminal when the voltage of terminal P DC and N DC at 1 is higher than 30V to prevent the risk of electrical shock 3 A16CM4H4R30 POWER Li gt AN gl M EXHAUST i B RH 3 TEMSENSOR D ACL BM OUTROOH NE 580 Ne TSENSOR PPRA TEM SENSOR V gt ean RT OUTTUBE B m JBN Bi G TEM SENSOR TY RES pw GY a aw 8 2 5 WH COMENNER Lm X RD __ 20YE f E 3BN H r Hp FA FB FC FD m e T 5 BU yn
16. gt 50cm more Space to the ay 30cm or above Space to the cover A 200cmor above Air outlet side A16CM4H4R24 A16CM4H4R30 LTT rir a 50cm or more Space to the cover bh 4 30cm or above Space to the cover 200cm or above Air outlet side 30cm or above Air inlet side 4 50cm or above Space to the wall 30cm or above Air inlet side 50cm or above Space to the wall This is just the schematic plan please refer to the actual product Installation Manual 7 3 Electrical Connections
17. 2 4 Communication malfunction Detection of the quantity of installed indoor units After 3min of energizing if the outdoor unit does not receive the communication data of certain indoor unit the outdoor unit will judge that indoor unit is not installed and will treat it as it is not installed If the outdoor unit receives the communication data of that indoor unit later the outdoor unit will treat that unit as it is installed 2 5 Overcurrent Protection a Overcurrent protection of complete unit b phase wire current protection c compressor phase current protection 2 6 Compressor high pressure protection 2 6 1 When the high pressure switch is detected cut off for 3s continuously the compressor will enter high pressure protection as it stops when reaching set temperature Meanwhile the outdoor unit will send the signal of high pressure protection to the indoor units 2 6 2 After the appearance of high pressure protection when the high pressure switch is detected closed for 6s continuously the compressor can resume running only after cutting off the power and then putting through the power 2 7 Compressor overload protection If the compressor overload switch is detected having movement the indoor unit will display the corresponding malfunction as it stops when the indoor temperature reaching set temperature When the compressor stops for more than 3min and the compressor overload switch is reset the unit will resume operation st
18. Cage 25 gsm toe iC 0 Jo Tasa J J Jo ak omis ums ems m s m L Pim 40 jwelFowFan The data above are subject to change without notice 2 2 2 3 4 Exploded Views and Parts list 3 A16CM4H4R30 27 28 Exploded Views and Parts list Part Code A16CM4H4R30 CB228W01800 13 Cut off Valve Description Magnet Coil 4300040033 4 Way Valve Assy 03123415 26115004 Clapboard Assy 01233116 Temperature Sensor 3900030901 The data above are subject to change without notice ET Troubleshooting 9 Troubleshooting 9 1 Malfunction Indicator Note O off on blink When several malfunctions occur at the same time they will be displayed in circulation and every malfunction is displayed for 5s NO Malfunction description LED1 LED2 LED3 LED4 0 Normal stop 1 2 Compressor overload protection 3 Discharge protection 4 Outdoor unit overload protection 5 High pressure protection 6 Overcurrent protection 7 IMP protection 8 IMP over heating protection 9 PFC protection i
19. m Defrosting Method Automatic Defrosting Automatic Defrosting T1 o 1 Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side ing ing Air Flow Volume of Outdoor Unit Dimension WXHXD m i C C C m m m m F 35 h 3300 2900 2400 3300 2900 2400 m m m m 9 9 9 m m m 3 4 2 946 700 396 946 700 396 1029 458 750 1029 458 750 Net Weight 689 62 Gross Weight 9 Refrigerant R410A Refrigerant Charge k Length 6 2 0 r i m Dimension of Carton Box L W H m i 9 m m m The above data is subject to change without notice Please refer to the nameplate of the unit 9 52 5 7 5 1 1 2 5 0 0 Constrction Views 3 Construction Views 1 A16CM4H4R18 899 550 2 A16CM4H4R24 A16CM4H4R30 892 946 560 Xo Ao Xo 368
20. 57 18 36 75 2 206 0 678 54 31 i 2 133 115 38 862 77 204 ne 49 02 1 997 0 625 46 6 1 933 0 608 44 31 1 871 0 592 42 14 1 811 0 577 40 09 I 1 754 0 561 1 699 0 547 1 645 0 532 1 594 0 519 1454 0 505 1497 145 1408 1363 0132 1282 x24 427 dam 0136 113 42 Troubleshooting Appendix 2 Resistance Table of Outdoor and Indoor Tube Temperature Sensors 20K Temp C Resistance kQ _ Tempt Resistance k Temp C Resistance kO Resistance kO 9 tera 20 2501 so s 147 8 1 a 299 e 1386 7 22 2285 4778 100 1346 2185 62 4 1397 ds was 208 s s ma 102 2 420 108 129 ia ae 1914 65 am 1198 n2 13 2 443 398 15 444 n nes 28 1755 er 3864 1 148 mos 2 168 68 379 107 109 9 tos 30 11 69 3608 108 1009 a 70 344 109 94 32 uw n 338 10 K E 0956 34 13 59 73 0 956 0 93 0 904 0 88 0 856 0 833 0 811 0 77 0 769 0 746 0 729 Troubleshooting Appendix3 Resistance Table for Outdoor Dis
21. FB L ovccowe 3 7 lu vene xm BN BK L3 Main Board G 5 5 WH 06 R um HEATER bere TUBE A TUBE B W 5 1 WHE BK I BU ek ex Ne AEP pT TRIS UR N waRNING 4 Gas Valve Liquid Valve Gas Valve Liquid Valve vesci us awa ta OES TEMSENSOR TEMSENSOR TEMSENSOR TEMSENSOR of terminal P DC and atAP1 is higher FANMOTOR OG than 30V to prevent the risk of electrical shock Schematic Diagram 2 A16CM4H4R24 xm 218N BN BK TH NN ACT BU gr j EXHAUST u E b 281 N 9 AP2 M gt aU M TEM SENSOR PNE
22. is connected correctly Reconnect according to yes Connected correctly Eliminate the malfunction the wiring diagram De energize change the communication wire of the well communicated indoor unit and malfunction indoor unit then energize the unit and wait for 3min The malfunction indoor unit Replace outdoor resumes normal mainboard Replace the mainboard of the malfunction indoor unit 37 Troubleshooting All the indoor units appear communication malfunction De energize check the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly Reconnect according to Connected correctly Eliminate the malfunction the wiring diagram De energize check if the connection wire betwee the outdoor mainboard and the filter board according to the wiring diagram Reconnect according to the wiring diagram Eliminate the malfunction Connected correctly Replace the gt liminate the malfunction The connection wire is broken connection wire Check if there is power input bewtween the netrual wire and live wire of the outdoor mainboard Replace the filter board of yes There is power input the outdoor unit Eliminate the malfunction Replace the outdoor mainboard Replace indoor mainboard Resume communication Troubleshooting 8 Compressor overload diacharge protection malfunction Main checking
23. temperature sensor malfunction 36 Unit C gas pipe temperature sensor malfunction 37 Unit D liquid pipe temperature sensor malfunction 38 Unit D gas pipe temperature sensor malfunction 39 Unit A mode conflict 40 Unit B mode conflict 41 Unit C mode conflict 42 Unit D mode conflict 29 Troubleshooting 43 Communication failure with Unit A e 44 Communication failure with Unit B 45 Communication failure with Unit C 46 Communication failure with Unit D e 47 Unit A freeze protection e 48 Unit B freeze protection 49 Unit C freeze protection 50 Unit D freeze protection 51 Unit A overheating prevention protection 52 Unit B overheating prevention protection e 9 9 e 53 Unit C overheating prevention protection 54 Unit D overheating prevention protection 55 Unit A communication wire misconnection or expansion valve malfunction 56 Unit B communication wire misconnection or expansion valve malfunction 57 Unit C communication wire misconnection or expansion valve malfunction 58 Unit D communication wire misconnection or expansion valve malfunction e 9 2 Malfunction Checking a
24. with the same model resistance table Eliminate the malfunction Replace the controller with the same model Troubleshooting 6 Start failure malfunction Main checking points If the connection wire of the compressor is connected properly If the stop duration of the compressor is sufficient If the compressor is broken I the refrigerant charging amount is too much Flow chart no The stop duration of the unit is not enough the high and low pressure of the system is not balanced restart it after 3min Energize and start the unit If the stop duration of the compressor is longer than 3min yes If the connection wire of the compressor is connected well and correctly f the refrigerant charging amount is too much Charge the refrigerant according to the service manual no mainboard Eie te ran gt gt econnecttheconnectionwire ofthe compressor according to the wiring diagram Eliminate the malfunction 36 Troubleshooting 7 Communication malfunction Main checking points If the connection wire between the indoor unit and outdoor unit is connected well if the wires inside the unit is connected well If the indoor mainboard or outdoor main board is broken Flow chart Communication malfunction of some indoor units De energize check the connection wire of indoor and outdoor unit and the wire of the eletric box
25. atus automatically If the protection appears for more than 6 times if the running time of the compressor is longer than 30min the protection times record will be cleared the unit can not resume operation status automatically but can resume running only after cutting off the power and then putting through the power 2 8 Compressor Phase lacking Protection When the compressor starts if one of the three phases is detected open the compressor will enter phase lacking protection The malfunction will be cleared after 1min the unit will restart and then detect if there is still has phase lacking protection If the phase lacking protection is detected for 6 times continuously the compressor will not restart but can resume running only after cutting off the power and then putting through the power If the running time of the compressor is longer than 7min the protection times record will be cleared 2 9 IPM Protection 2 9 1 When the IMP module protection is detected the unit will stop as the indoor temperature reaching set temperature PFC is closed display IMP protection malfunction After the compressor stops for 3min the unit will resume operation status automatically if the IMP protection is detected for more than 6 times continuously If the running time of the compressor is longer than 7min the protection times record will be cleared the system will stop and send the signal of module protection to indoor unit The unit can not resume o
26. b Service Manual MODEL A16CM4H4R18 A16CM4H4R24 A16CM4H4R30 Refrigerant R410A Table of Contents Table of Contents Summary and Features ses 1 1 Safety Precautions 1 1 e 2 2 Specifications lc M unu 3 3 Construction Views aaa 7 4 Refrigerant System Diagram 8 5 Schematic Diagram SSS S S DE 9 5 1 Electrical rara U aaa aaa 9 5 2 Electrical VIN entes d En EN 9 5 3 Printed Circuit e rer tm ce br tr err re e 11 6 Function and Control 121 a 13 7 Installation Manwual sss 16 7 1 Installation Dimension Diagram eee 16 7 2 Installing The Outdoor ni err rtt niet pneri eun 17 7 3 Electrical Connections ela bera cic ed od avenida dnte oT x dei 19 7 4 Check After Installation scc tern eut endete 22 8 Exploded Views and Parts List 23 9 Troubleshooting RENE MMC 29 0 1 Malfunction Indicator 29 9 2 Malfunction Checking and Elimination 1 i 30 10 Removal Procedure _ 44 10 1 Removal Procedure TN 44 10 2 Removal Procedure 24K 30K seen 50 Summary and Features Summary and Features Outdoor Unit A16CM4H4R18
27. charge Temperature Sensor 50K Temp C Resistance kQ mH Temp C Resistance kQ Resistance kQ Resistance kO 4 835 10 134 2 8 108 47 18 s so 9 25 4 190 49 Note The information above is for reference only 43 Removal Procedure 10 Removal Procedure 10 1 Removal Procedure 18K N Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly Procedure 1 Remove top cover and handle Before disassembly Twist off the screws used for fixing the handle pull the handle upward to remove it Handle Top panel Twist off the screws used for fixing the top cover pull the top cover upward to remove it 44 Removal Procedure 2 Remove front grille and front panel Remove the screws connecting the front grille and the front panel Remove the front grille Twist off the screws fixing the panel pull it upward loosen the clasp on the right side rotate it to the left and then remove the front panel 3 Remove right side plate Remove the screws connecting the right side plate with the chassis the valve support and the electric box and then remove the right side plate assy NS right side plate AN
28. e domestic waste This product has to be disposed at an authorized place for recycling of electrical and electronic appliances The temperature of refrigerant circuit will be high please keep the interconnection cable away from the copper tube OUTDOOR UNIT No Description 1 Air outlet grille 2 Valve Note the above figures are only intended to a simple diagram of theappliance and may not correspond to the appearance of the units that have been purchased A16CM4H4R24 A16CM4H4R30 Warning If the supply cable is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard Be sure to cut off the power supply before cleaning the air conditioner otherwise electric shock might happen Wetting of air conditioner may cause the risk of electric shock Make sure not to wash your air conditioner in any case Volatile liquids such as thinner or gasoline will cause damage to the appearance of air conditioner Only use soft dry cloth moist cloth clean the air conditioner cabinet Do not dispose this product as unsorted municipal waste Collection of such waste separately for special treatment 1 is necessary 9 The temperature of refrigerant circuit will be high please keep the interconnection cable away from the copper tube OUTDOOR UNIT
29. face2 CI tg ce i 9614 HH IE 16981 1 celu LOL IL JL 00886146618 HY e rir mun mm 01 81 01 0102 W Scenruo MARK AREA Q J FI LILI K 11 Schematic Diagram 2 A16CM4H4R24 A16CM4H4R30 e TOP VIEW 1 Compressor interface Temperature sensor 2 interface of unit A liquid 13 valve and gas valve 14 Temperature sensor 3 interface of unit B liquid 15 valve and gas valve Temperature sensor 16 4 interface of unit C liquid valve and gas valve Temperature sensor 5 interface of unit D liquid 17 valve and gas valve 024 044 206 Temperature sensor D mn ect 4 LES jCOM INNER 18 M prc N Interface of compressor
30. figures are only intended to be a simple diagram of the appliance and may not correspond to the appearance of the units that have been purchased All power cables and connection cables must be protected with conduits A16CM4H4R24 1 Remove the handle at the right side plate of the outdoor unit ten screw 2 Remove the cable clamp connect the connection cable and power cable with the terminal at the row of connection and fix the connection The fitting line distributing must be consistent with the indoor unit terminal of line bank Wiring should meet that of indoor unit 3 Fix power connection wire by wire clamp 4 Ensure wire has been fixed well 5 Install the handle An all pole disconnection switch having a contact separation of at least 3mm in all pole should be connected in fixed wiring Wrong wire connection may cause malfunction of some A electric components After fixing cable ensure that leads between connection to fixed point have some space The connection pipes and the connectiong wirings of the unit A unit B and unit C must be corresponding to each other respective The appliance shall be installed in accordance with national wiring regulations Do not install the outdoor unit where it is exposed to the sunlight Note the above figure are only intended to be a simple diagram of the appliance and may not correspond to the appearance of the units that have been purchased 20 Installation Manual
31. he quantity of running indoor unit is changed the unit will enter the control described in 1 3 5 1 and 1 3 5 2 When the compressor stops the outdoor fan runs at present speed and stops after 1min 1 2 Dry Mode 1 2 1 The dry conditions and process are the same as those in cooling mode 1 2 2 The status of 4 way valve closed 1 2 3 The temperature setting range 16 30 C 1 2 4 Protection function the same as those in cooling mode 1 2 5 In dry mode the maximum value A of the capacity requirement percentage of single unit is 90 of that in cooling mode The open condition of the electronic expansion valve outdoor fan and compressor is the same as those in cooling mode 1 3 Heating Mode 1 3 1 Cooling conditions and process When one of the indoor units reaches the heating operation condition the unit starts heating operation 1 3 2 Stop in heating operation 1 3 2 1 When all the indoor units reach the stop condition the compressor stops and the outdoor fan stops after 1min 1 3 2 2 Some of the indoor units reach the stop condition The compressor reduces the frequency immediately and operates according to the required frequency 1 3 2 3 Heating mode transfers to cooling mode dry mode fan mode a The compressor stops b the power of 4 way valve is cut off after 2min c the outdoor fan stops after 1min d the status of 4 way valve energized 13 Function and Control 1 3 3 Outdoor fan control in heating mode The o
32. hose to it as shown lengths in the figure Models m 18K 24K 30K Max connection pipe length 20 70 Drain water hole Max connection pipe length 40 20 Simple one indoor unit Bottom frame heights 5m 18K 10m 24K 30K Wrap all the refrigerant pipes and joints Hose available commercially inner dia 16mm The refrigerant pipes must not exceed the maximum gt Drain plug d Humid air left inside the refrigerant circuit can cause com pressor malfunction After having connected the indoor and outdoor units bleed the air and humidity from the e e refrigerant circuit using a vacuum pump E 7 1 Unscrew and remove the caps from the 2 way and 3 L E way valves Eu VEL 2 Unscrew and remove the cap from the service valve 3 Connect the vacuum pump hose to the service valve 4 Operate the vacuum pump for 10 15 minutes until an absolute vacuum of 10 mm Hg has been reached 5 With the vacuum pump still in operation close the low pressure knob on the vacuum pump coupling Stop the vacuum pump 6 Open the 2 way valve by 1 4 turn and then close it after 10 seconds Checkall the joints for leaks using liquid soap or an electronic leak device 7 Turn the body of the 2 way and 3 way valves Discon nect the vacuum pump hose 8 Replace and tighten all the caps on the valves Vacuum pump Diameter mm Twisting moment N m
33. in conflict with heating mode and the heating mode is the basic mode No matter which indoor unit operates first the unit will run in heating mode 2 2 Overload protection function When the tube temperature is a little low the compressor raises the operation frequency when the tube temperature is a little high the compressor frequency is restricted or lows down the operation frequency when the tube temperature is too high the compressor protection stops running If the discharge temperature protection continuously appears for 6 times the compressor can t resume running The compressor can resume running after cutting off the power and then putting through the power if the running time of the compressor is longer than 7min the protection times record will be cleared 2 3 Discharge Protection Function When the discharge temperature is a little low the compressor raises the operation frequency when the discharge temperature is a little high the compressor frequency is restricted or lows down the operation frequency when the discharge temperature is too high the compressor protection stops running If the discharge temperature protection continuously appears for 6 times the compressor can t resume running The compressor can resume running after cutting off the power and then putting through the power if the running time of the compressor is longer than 7min the protection times record will be cleared 14 Function and Control
34. is cut off or the Replace the induction or wiring is loose reconnect the loose wire Malfunction is eliminated Replace the outdoor mainboard 33 4 Anti high temperature and overload malfunction Main checking points e outdoor ambient temperature is within the normal range e outdoor fan is running normally e indoor and outdoor radiation environment is good Flow chart If the outdoor ambient temperature is above 53 If the indoor and outdoor radiation is insufficient If the outdoor fan is working normally Replace outdoor mainboard It is a normal protection please operate the unit after the outdoor ambient temperature has changed Improve the radiation environment of the unit Check if the terminal of the fan is connected well if the fan is broken Replace fan capacitor Replace outdoor fan Troubleshooting 34 Troubleshooting 5 Temperature sensor malfunction Main checking points If the temperature sensor is damaged or broken If the terminal of the temperature sensor is loosended or not connected the mainboard is broken Flow chart Check whether the wiring terminal between emperature sensor and controller is loosened or poorly yes contacted Insert the temperature sensor tightly Eliminate the malfunction Check whether the Replace the temperature senso temperature senspr is normal according to
35. lamp connect the connection cable and power cable with the terminal at the row of connection and fix conn ction cable the connection The fitting line distributing must be consistent with the indoor unit terminal of line bank connection cable AC Wiring should meet that of indoor unit 3 Fix power connection wire by wire clamp 4 Ensure wire has been fixed well 5 Install the handle An all pole disconnection switch having a contact separation of at least 3mm in all pole should be connected in fixed wiring Power cable 1 The power cable should be put in from the hole under connection cable cover 2 Ifconnecting with two indoor units the connection cable should be put in from hole A and hole B The connection pipesandthe connectiong wirings of 3 If connecting with three indoor units the connection cable the unit A unit B unit C and unit D must be corresponding should be put in from hole A B and C to each other respective 4 If connecting with four indoor units the connection cable The appliance shall be installed in accordance with should be put in from hole A B C and D national wiring regulations A Wrong wire connection may cause malfunction of some electric components After fixing cable ensure that leads between connection to fixed point have some space All power cables and connection cables must be protected with Do not install the outdoor unit where it is exposed conduits to the sunlight
36. may drop vibrate or make noises Has the gas leakage been checked May cause unsatisfactory cooling heating effect Is the thermal insulation of the unit sufficient May cause condensation and water dropping Is the drainage smooth May cause condensation and water dropping Does the power supply voltage accord with the rated voltage specified on the nameplate The unit may bread down or the components may be burned out Are the lines and pipelines correctly installed The unit may bread down or the components may be burned out Has the unit been safely grounded Risk of electrical leakage Are the models of lines in conformity with requirements The unit may bread down or the components may be burned out Are there any obstacles near the air inlet and outlet of the indoor and outdoor units The unit may bread down or the components may be burned out Have the length of refrigerating pipe and refrigerant charge amount been recorded It is not easy to decide the charge amount of refrigerant Exploded Views and Parts list 8 Exploded Views and Parts List 1 A16CM4H4R18 23 24 Exploded Views and Parts list 7 18 19 m Resm oww _ poxememuy m we 23 Motor Suppor supa 01732 m 1 25
37. n is completed Should there be refrigerant leakage the density of refri gerant in the air shall in no way exceed its limited value or it may lead to explosion Keep your fingers and clothing away from any moving parts Clear the site after installation Make sure no foreign ob jects are left in the unit Always ensure effective grounding for the unit N Caution Never install the unit in a place where a combustible gas might leak or it may lead to fire or explosion Make a proper provision against noise when the unit is installed at a telecommunication center or hospital Provide an electric leak breaker when it is installed in a watery place Never wash the unit with water Handle unit transportation with care The unit should not be carried by only one person if it is more than 20kg Never touch the heat exchanger fins with bare hands Never touch the compressor or refrigerant piping without wearing glove Do not have the unit operate without air filter Should any emergency occur stop the unit and discon nect the power immediately Properly insulate any tubing running inside the room to prevent the water from damaging the wall Specifications 2 Specifications 16 4 4 18 CB228W01600 Rated Voltage 208 230 Som Rated Frequency i i m 60 Supply Rated Frequency Hz pases Cooling Capacity Min Max Btu h 18000 7000 21000 Heating Capacity Min Max 19000 8530 22600 Cooling P
38. ncluding overheating protection 10 Phase current protection e 11 Over voltage protection 12 Insufficient voltage protection 13 Start failure 14 Compressor desynchronizing 15 Compressor phase lacking protection 16 Compressor phase current detection malfunction 17 Memory chip mistake 18 DC power supply circuit short 19 Defrosting 20 Oil return 21 Complete unit frequency restriction protection 22 Complete unit frequency dropping protection 23 Unit A frequency restriction or frequency dropping protection 24 Unit B frequency restriction or frequency dropping protection 25 Unit C frequency restriction or frequency dropping protection 26 Unit D frequency restriction or frequency dropping protection 27 Outdoor ambient temperature sensor protection 28 Outdoor tube temperature sensor protection 29 Discharge temperature sensor protection 30 IPM thermal resistance malfunction 31 Unit A liquid pipe temperature sensor malfunction 32 Unit gas pipe temperature sensor malfunction 33 Unit B liquid pipe temperature sensor malfunction 34 Unit B gas pipe temperature sensor malfunction 35 Unit C liquid pipe
39. nd Elimination Note discharge the position in below pictures with discharge resistance after open the top cover and check if the voltage is below 20V with universal meter then begin to check 18K 30 r LXt 1 0 enerne Pump r r n 7 mannan LL L L LL LL L LAL KANM P DC ar T3 34 d abad Leid amp prergreranr LN 4 Lud 4 mmi 1 IPM protection malfunction Main checking point If the input voltage of the unit is within normal range If the connection wire of compressor is connected well Is it loose If the connection sequence is correct If the resistance of compressor coil is normal If the isolation of compressor coil with copper pipe is good If the unit is overloaded If the heat radiation of the unit is good If the refrigerant charge is suitable Flow chart 24 30K Troubleshooting Energize the unit Please check 1 ifthe indoor and outdoor heat exchanges are dirty if there is obstacle to affect the radiation 2 if the indoor and outdoor fans are running normally 3 if the pressure of the system is too high 4 if the refrigerant is too much which causes the high level of pressure yes If the above cases are existed no Correct according to the service manual and then energize the unit to operate no If the wire of compressor is connected well and correctly yes Reconnect the wire of the compressor according t
40. o the the resistance between correct wiring method the three phases no If the resistance is normal Test the isolation impedance betweenthe three phases ofthe compressor and thecopper pipe If the resistance is above 500M Replace the compressor Malfunction is eliminated Replace the outdoor mainboard End 31 Troubleshooting 2 PFC protection malfunction Main checking points e Ifthe power supply is normal e Check if the connection wire of induction is connected well and if the induction is broken Flow chart Check If the power supply is normal Turn on the unit after the Power supply is abnormal power supply resumes to normal situation Check if the outdoor induction is broken The induction is broken Replace the induction Malfunction is eliminated Replace the outdoor mainboard 32 Troubleshooting 3 Capacity charging malfunction Main checking points e wiring of the induction is connected well and if the induction is broken e mainboard is broken Flow chart Energize the unit and wait for 1min estthe voltage betweenthe two ends of the electrolytic capacitor ith the DC shift of the universal The detection circuit of Replace the out The voltage is above 100V the outdoor mainboard door mainboard has malfunction Check ifthe induction wiring is loose orthe induction is cut off The induction
41. onnect switch Lock out and tag switch with a suitable warning label Never supply power to the unit unless all wiring and tub ing are completed reconnected and checked This system adopts highly dangerous electrical voltage Incorrect connection or inadequate grounding can cause personal injury or death Stick to the wiring diagram and all the instructions when wiring Have the unit adequately grounded in accordance with local electrical codes Have all wiring connected tightly Loose connection may lead to overheating and a possible fire hazard All installation or repair work shall be performed by your dea ler or a specialized subcontractor as there is the risk of fire electric shock explosion or injury Safety Precautions Make sure the outdoor unit is installed on a stable level surface with no accumulation of snow leaves or trash beside Make sure the ceiling wall is strong enough to bear the weight of the unit Make sure the noise of the outdoor unit does not disturb neighbors Follow all the installation instructions to minimize the risk of damage from earthquakes typhoons or strong winds Avoid contact between refrigerant and fire as it generates poisonous gas Apply specified refrigerant only Never have it mixed with any other refrigerant Never have air remain in the refrigerant line as it may lead to rupture and other hazards Make sure no refrigerant gas is leaking out when install atio
42. ood Flow chart The unit appears desynchronizing as soon as energizing and starting The stop duration of the compressor is longer than 3min The wiring of the compressor is Reconnect the wire properl connected properly yes Eliminate the malfunction Replace the eletric expansion valve The eletric expansion valve is broken Eliminate the malfunction Replace outdoor mainboard Eliminate the malfunction Replace the compressor 40 Troubleshooting Appendix 1 Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units 15K Temp C Resistance ka Resistance ka _ Temp C Resistance ka Resistance ka m ws m ws s s as vas z e om e 1030 1 22 wa 6 38798 10 1009 ns 23 139 100 os L o lo 108 e 02 _ 1029 25 15 3207 19 095 974 2 1430 65 3 105 104 088 9222 2 1374 298 10 0873 eras 28 1310 67 286 106 oss 8275 2 s 68 277 107 085 843 30 127 2 10 082 wee tos 029 705 32 no 288 dens z us 6346 3 102 z 238 om 8025 s 200 n os _
43. ower Input Min Max 1650 680 2800 Heating Power Input Min Max 1640 680 2800 Specifications MITSUBISHI ELECTRIC GUANGZHOU COMPRESSOR CO LTD Cons see Commressero pp vers pp Oed pms rn ean vane Condenser Fom _ uiputofFanMoor w 6 Fame Aa Beresi mera AwemaeDesng cimae pm SSS s mmen pp Mose een mm __ Permissible Excessive Operating Pressure for Permissible Excessive Operating Pressure for Refigernt ppm _ Maxine Height Max Compressor Manufacturer Trademark Specifications cmzewooo power Rated Frequency m EC _ Cooling Capacity Min Max Btu h 26000 7500 33000 29000 7500 34000 Heating Capacity Min Max Btu h 29000 7500 35000 30500 7500 36000 Cooling Power Input Min Max 3050 650 4500 3450 650 4500 Heating Power Input Min Max 2850 980 3950 Specifications MITSUBISHI ELECTRIC MITSUBISHI ELECTRIC GUANGZHOU COMPRESSOR GUANGZHOU Compressor Manufacturer Trademark CO LTD COMPRESSOR CO LTD p w en CS 7C 1595 CS 7C 1595 mbient temp mbient temp heating 9 i A A Rows fin Gap m Fan Motor RLA A 0 59 3 m m Coil Length LXDXW m Axial flow Axial flow 520 520 Pipe Diameter m Fan Type
44. peration status automatically but can resume running only after cutting off the power and then putting through the power 2 9 2 IMP module overheating protection 2 9 2 1 When Timp gt 85 C prohibit to raise frequency 2 9 2 2 When gt 90 C the operation frequency of compressor lows down by 15 every 90s according to the present capacity requirement of the complete unit It will keep 90s after lowing down the frequency After lowing down the frequency if Timp2 90 C the unit will circulate the above movement until reaching the minimum frequency if 85 C lt Timp lt 90 C the unit will run at this frequency when Timp lt 85 the unit will run at the frequency according to the capacity requirement 2 9 2 3 When Timp2 95 C the compressor stops After the compressor stops for 3min if Timp lt 85 C the compressor and the outdoor fan will resume operation 15 Installation Manual 7 Installation Manual 7 1 Installation Dimension Diagram A16CM4H4R18 Warning Be sure to cut off the power supply before cleaning the air conditioner otherwise electric shock might happen Wetting of air conditioner may cause the risk of electric shock Make sure not to wash your air conditioner any case 9 Volatile liquids such as thinner or gasoline will cause damage to the appearance of air conditioner Only use soft dry cloth moist cloth clean the air conditionercabinet This product must not be disposed together with th
45. points eletric expansion valve is connected well or it is broken If there is refrigerant leakage If the overload protector is broken Flow chart no If the overload protector is connected well yes no Check the resistance between the two ends of the overload protector in ambient temperature if the resistance is below 1k yes If the wiring of the eletric expansion valve no Reconnect according is coonected well to the wiring diagram Replace the Check the coil of the eletri overload protector expansion valve replace it if itis broken yes Eliminate the malfunction Check the refrigerant status if there is refrigerant leakage recharge it according to the service manual liminate the malfunction no Replace outdoor mainboard End Noted the detection method of the coil of the eletric expansion valve there is five pieces of the coil of the eletric expansion valve the resistance of one of them the leftmost or the rightmost one is almost the same as the resistance of other terminal within 100 Q Judge the condition of the electronic expansion valve through detecting these resistance 39 Troubleshooting 9 Compressor desynchronizing malfunction Main checking points If the pressure of the system is too high If the eletric expansion valve is working normally or it is broken If the radiation of the unit is g
46. utdoor fan starts before 5s of the starting of compressor and then it will run in high speed for 40s The fan shall run at every speed for at least 80s When the compressor stops the outdoor fan stops after 1min 1 3 4 Defrosting function When the defrosting condition is met the compressor stops the electronic expansion valve of all indoor units open in big angle the outdoor fan stops after 40s of the stop of compressor meanwhile the 4 way valve reverses the direction after the 4 way valve reverses the direction the compressor starts then begin to calculate the time of defrosting the frequency of the compressor rises to reach the defrosting frequency 1 3 5 Oil returned control in heating mode 1 3 5 1 Oil returned condition The whole unit is operating in low frequency for a long time 1 3 5 2 Oil returned process in heating mode The indoor unit displays H1 1 3 5 3 Oil returned finished condition in heating mode The duration reaches 5min 1 4 Fan Mode The compressor the outdoor fan and the 4 way valve are closed temperature setting range is 16 30 2 Protection Function 2 1 Mode Conflict Protection of indoor unit When the setting mode is different of different indoor unit the unit runs in below status a The mode of the first operating indoor unit is the basic mode then compare the mode of the other indoor units to see if there is a conflict Cooling mode dry mode is in conflict with heating mode b Fan mode is
47. ve C1 C unit electronic expansion valve D1 D unit electronic expansion valve A2 A unit gas pipe temperature sensor B2 B unit gas pipe temperature sensor C2 C unit gas pipe temperature sensor D2 D unit gas pipe temperature sensor A3 A unit liquid pipe temperature sensor B3 B unit liquid pipe temperature sensor C3 C unit liquid pipe temperature sensor D3 D unit liquid pipe temperature sensor Schematic Diagram 5 Schematic Diagram 5 1 Electrical Data Meaning of marks Symbol Color symbol Symbol Color symbol Symbol WH WHITE GN GREEN SAT OVERLOAD YE VELLOW BROWN COMP COMPRESSOR RD RED BU fe PROTECTIVE EARTH YEGN VELLOWGREEN BK Black 7 ___ vr Moer oo jmwc O 5 2 Electrical Wiring 1 A16CM4H4R18 POWER L1 15 BU LI RT Rr IM SENSOR p ap 02 gt AGL 1 OUTROOM e 8 ge gt TSENSOR gt gt 9 Ire sensor 12 312 OUTTUBE SYEGNCN 2 j RS S TEMSENSOR 8 3BU BN 28 t 2 gt i 15 BIT kand AV TM COM INNER TY E 4BU 8 FA
Download Pdf Manuals
Related Search