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Ceiling Mounted Inverter Service Manual

Contents

1. aE me 3 3 4 Install the body D Ceiling installation The only installation method for the unit with drain pump Remove the side board and the grille For models 48 and 60 do not remove the grille Side board N 2 D T 3 Grille Locate the hanging arm on the hanging screw bolt Prepare the mounting bolts on the unit 8 13 Screw nut Hangin bolt Washer INDOOR UNIT Hanging screw bolt Mounting bolt max 40mm Hanging arm 83 Indoor unit installation Hang the unit on the hanging arm by sliding backward Securely tighten the mounting bolts on both sides Hangin deni bolt N Hanging arm For some of the models 60 please securely tighten the mounting bolts on both sides Hangin install the side panels and grilles back to the main unit 2 Floor standing installation Hang the indoor unit on the hook The bottom of body can touch with floor or suspended but the body must install vertically 84 Indoor unit installation 3 4 3rd generation ceiling amp floor indoor unit installation 3 4 1 Service space for indoor unit gt 35mm 3 4 2 Bolt pitch 0 Ceiling installation
2. Microphone 7 _ gt 1m 1 5m Air outlet side Microphone WA P 2 P DP Ceiling Floor Noise level dB A Model 41 9 Accessories Installation fittings Remote controller amp Its holder Others 2 Hanging arm 4 Remote controller holder 5 Mounting screw ST2 9x10 C H 6 Alkaline dry batteries AM4 42 10 The Specification of Power Model KV24CM ARF21 1 Frequency and 220 230V 60Hz Voltage INDOOR UNIT POWER POWER WIRING 3 1 0 CIRCUIT BREAKER FUSE A 1 220 230V 60H Voltage OUTDOOR UNIT POWER POWER WIRING 3X2 fat 5 CIRCUIT BREAKER FUSE A Indoor Outdoor Connecting Wiring 3 0 5 Weak Electric Signal mm Indoor Outdoor Connecting Wiring Strong Electric Signal mm The Specification of Power 43 Field Wiring 11 Field Wiring KV24CM ARF 21 Air Condition Link Circulit 202042890198 OUTDOOR UNIT WX 4 INDOOR UNIT Power supply IN 0 1 Phase 220 240V y Use 3 core cable 25mm Wi for the models which with auxiliary electric heater PTC Use 3 core cable 3 1 0 for the others 3 core shielded cable 3 0 5mm Power supply 1 Phase 220 240V
3. 5 5 5 5 oa N 5 A O lI co co ow po M 5 5 1 5 5 5 IN 132 Troubleshooting Appendix 2 Unit Discharge temp sensor table 4 sus zm 355 amp m 124 WR 34m ar 45s s 18 35 36 4s s ms 3 e 5 s es os 335 19 1 am 7 395 a2 3 amp 6 125 294 m 69 wm 286 _ iN Oo lt gt N N N 0 wes s we s 1m _ xs s NO C1 NO w me wm e am wo ws 4 s a 4e _ 1 e xm we e om 1 na 9 3 N AAW
4. A x 1 lil DAA 0 0 0 n 6 n gp n N D A Unit mm MOE D E F H KV24ODU ARF21 KV36ODU ARF21 B 990 624 366 396 340 345 965 64 Dimensions Unit mm ____ pD 65 2 Service Space Wall or obstacle Air inlet More than 30cm More than 60cm More than 30cm NS v
5. EE GENES AE GE GR 7 RO ee r RR e e a NLIS a rame e cr mer os m md men nn 8 8 SS ee m resm e e mm men gt misi um ma mm IMS a GERE Ed ee sass a m mL NL SS EES nende a r e NEL GARD GER ER pid B Rain HR a cem er ee mmn ama 4
6. LCP INVERTER 1 1 MODELS INDOOR UNIT Four way Ceiling Cassette KV 24CC ARF21 Super slim Cassette KV 36CC ARF21B KV 48CC ARF21B Ceiling floor Mount Convertible KV 24CM ARF21 3 Generation Ceiling floor KV 36CM ARF21B KV 48CM ARF21B Floor Mounted Type KV 36FM ARF21 KV 6 21 OUTDOOR UNIT Universal Outdoor Unit KV 240DU ARF21 KV 360DU ARF21 B 480DU ARF21B KV 600DU CRF21 SERVICE MANUAL LIGHT COMMERCIAL AIR CONDITIONING 20 4 4 Contents CONTENTS Part 1 General Information 1 2 wine REM EM d 6 3 Outdoor a 63 Barts see T 75 Part 5 Electrical Control System General Information Part 1 General Information T IO 1 r a a NE 2 2 3 2 1 3 2 2 Outdoor UNITS E EE 3 3 rendir 4 a 5 Model Lists 1 Model Lists 1 1 Indoor Units R410A capacity multiplied by 1000Btu h Super slim Four way cassette 3 generation ceiling amp floor Floor standing Cooling Cd O NN NE
7. Note KV36ODU ARF21 KV360DU ARF21B have no EXV 67 Wiring Diagrams 4 Wiring Diagrams KV240DU ARF21 220075301510 202075390470 COMPRESSOR J T REACTOR R1325 REACTOR3 R2503 KV24ODU ARF21 220075301740 202075390556 OMPRESSOR BLUE Y G WO LPM RECTIFILER2 RECTIFILERI NX OF REACTOR3 R2503 Electronic expansive Valve 5 UOSNAS ANAL NOOY 1000100 408845 ANAL YGONVHOXS 1000110 MAIN BOARD CURRENT DETECTOR CN32 YOSNAS ANAL NOOY 1000110 0959 0100 LE 4000410 MAIN BOARD CN32 400 IOS BLACK BLACK E P BLACK AN NOTE PLEASE USE 3 CORE SHIELDED WIRE DO X 70 224 SEO 2 5 OUTDOOR FAN EXE L vet X OO 55 INDOOR COMM BUS RY NOTE PLEASE USE 3 CORE SHIELDED WIRE OUTDOOR FAN LNG 6 PPE 68 Wiring Diagrams KV36ODU ARF21 B 220075501730 202075590479 Electronic expansive c _ Valve E 5 BLUE 8 N 1 1 COMPRESSOR 2 NJ 1 SA a n Ems
8. e VALUE FLOOR 1 1 1 According to NN BOROSS ng 6 6 E function 555555 INDOOR POWER RRR OUTDOOR Bed COMM BUS COMM BUS actory Settn 37 Capacity Tables 5 Capacity Tables 6 1 Cooling Capacity KV24CM ARF 21 Cooling Indoor Conditions 21 15 C DB WB 24 17 C DB WB 27 19 C DB WB 32 23 C DB WB Notes Total capacity SC Sensible heat capacity Input Input power kW KW T nput T nput 00 T C Outdoor conditions DB 228 241 254 43 6 50 5 46 2 46 6 57 5 52 2 61 6 79 5 57 2 66 7 01 6 52 2 76 38 Air Velocity and Temperature Distributions Reference Data 6 Air Velocity Distributions Reference Data Discharge angle 60 CEILING Airflow velocity EE 9 1 39 Air Velocity and Temperature Distributions Reference Data Discharge angle 60 FLOOR Airflow velocity jw P 6 M ES 40 Electric Characteristics 7 Electric Characteristics Indoor Unit Power Supply Hz Voltage Min MFA KV24CM ARF21 60 220 230 Note MFA Max Fuse Amps A 8 Sound Levels
9. Ceiling amp floor DN d 45 4 _ __ 1 2 Outdoor Units Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units KV24CC ARF21 KV24ODU ARF21 Rotary DC Inverter GMCC KV24CM ARF21 KV36ODU ARF21 Rotary DC Inverter MISTUBISHI KV36FM ARF21 KV36CC ARF21B KV36ODU ARF21B Rotary DC Inverter MITSUBISHI KV36CM ARF21B KV48CC ARF21B KV480DU ARF21B Rotary DC Inverter MITSUBISHI KV48CM ARF21B KV60ODU CRF21 Rotary DC Inverter MITSUBISHI KV60FM ARF21 External Appearance Ceiling amp Floor 2 External Appearance 2 1 Indoor Units Four way Cassette Floor standing koppel Super INVERTER 2 2 Outdoor Units 4 eee eee 11 ee 70 EE UO SS NENNEN EN 0 12 ream m oT 1 gg Super INVERTER pn TT 4 7 um SE EE IG SOS I Wm iR 000 0 SS ae en e am a M 0 pss 4 2 94 n 1 1 Dou
10. WIIN a 62 53 Features 1 Features 1 1 Fashionable design more modem and elegant appearance 1 2 Air Outlet Dustproof When turned the air outlet louver af the unit can be fully closed manually ta prevent dust from entering 1 3 Simple and bright panel Adopts simple and bright panel suitable far most different spaces with good aesthetic design 1 4 Big LCD display easy to read and operate 1 5 Optional healthy filter and auto restart function 54 Dimensions 2 Dimensions ee 55 Service Space 3 Service Space Ceiling 30 cm uL LP P PU LP PP min wall or obstacle 77 min 74 4 4 Front gt 200cm o0cm min 50 Floor standing Type 56 Wiring Diagrams 4 W iring Diagrams KV36FM ARF21 MIDDLE PIPE TEMP OUTER PIPE TEMP is T2B TAY T1 d p gt ROOM TEMP lt lt LT DISPLAY e BOARD 2 Fan T shielded cable 202043790205 AUXILIARY HEATER 0 15 32 47 48 68 morsen SETTING POWER ENC1 SW1 FACTORY SETTING According to related model T2 MID
11. module protection Check whether the voltage range of P N on IPM module is normal DC277 356V for No Troubleshooting Check whether the input power supply is egulate it to correct then check whether the 24KBtu h DC277 410V for 36K 48KBtu h Yes Check whether the connecting line between main board and the IPM module is connected tightly Yes No Check whether the connecting line of the compressor is connected correctly or tightly Yes No Connect it tightly check ok or not Connect it well check ok or not eplace the IPM module correct 220 240V 1N 60Hz system can work normally No UTE onnect it correctl p pply and tightly check connected correctly or not and tightly No Check whether the lines in E part box are connected tightly Connect it tightly check ok or not Yes No check whether the system can work normally No eplace the main boar Check whether the bridge rectifiers are normal Use the multimeter to measure the resistance between each two terminals check whether there is the condition that value of resistance is 0 e Yes Replace the bridge rectifiers Check whether the connecting of every reactor is normal If the line
12. gt 5 SRA RAS ix Es E 5 S we BLACK BLACK 2 Ll p 3 Qo 55250 diu s CER y d i z 5535525 5 P2 P4 2 IPM BLACK MAIN BOARD CN3 5 Y G BLACK QI RED Y G NI DAD TN P O 2 P 1 C 4 nae YELLOW Y G Y G Y G OS KV36ODU ARF21 B 220075502120 202075590598 5 wd BLUE i Fd us i z COMPRESSOR 2 2 Gi 1 4 D gt gt SZ es 2 p BLACK 555 C3 5 1 BLACK E Bag 549246 a flo 2 OFO Ez ss D gt gt zo P2 P4 2 4 8 MAIN BOARD CNT CN3 CNT CN22 RY1 30 Y 6 IDEM BLACK m Do N A CURRENT DETECTOR p em 1 CN32 Q MG YELLOW PFC INDUCTOR 69 Wiring Diagrams KV48ODU ARF21B WIRING DIAGRAM OUTDOOR UNIT Applicable to the units 202075890647 motor only Applicable to the units radopting AC motor only cow comp COMPRESSOR CAP1 CAP2 FAN MOTOR CAPACITOR AC CURRENT DETECTOR
13. 1231 Exit low ambient cooling mode run with high fan 38 _ for 1 minute 30 27 ES Low 28 off Y 105 Electrical Control Function When T4 lt 15 and lt 30 the unit will enter into low ambient cooling mode The outdoor fan will choose speed according to T3 When T3238 or when T4220 the outdoor fan will choose the speed according to 4 again 1 3 2 3 Indoor fan operation rules In cooling mode indoor fan runs all the time and the speed can be selected as high medium low and auto The auto fan i 4 5 0 7 High we 4 0 4 3 0 7 2 0 Y Low 1 3 2 4 Evaporator low temperature T2 protection When 2 lt 2 and lasts for minutes the indoor has no capacity demand and resume till T2 7 1 3 2 5 Condenser high temperature T3 protection When T3265 for 3 seconds the compressor will shut off When T3 lt 52 the compressor will restart 1 3 3 Auto mode This mode can be chosen with remote controller and the setting temperature can be changed between 17 30 C In auto mode the machine will choose cooling heating or fan only mode according to AT AT T1 Ts AT 2 C Fan only Indoor fan will run at auto fan of the relevant mode The louver operates same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for 15 minutes and then choose mode according to 1 If the s
14. Drainage pipe Drainage pipe Drainage pipe Drain tee VEMM yum Water flow Water flow Water flow Water flow Water flow Drain tee JP Drain tee fand Mater Hon water flow Water Water flow Branch pipe 7 gt Gas Gas lt gt Pa Water flow Es Keep a certain degree ef lt Main pipe 7 Main pipe 2 44 7 gt 3 gt The correct installation will not cause converse water flow the slope of the branch pipes can be adjusted freely gt false installation will cause converse water flow the slope of the branch pipe can not be adjusted 6 2 6 Water storage pipe setting gt the indoor unit has high extra static pressure and without water pump to elevate the condensate water such as high extra static pressure duct unit the water storage pipe should be set to avoid converse flow or blow water phenomena 95 Drainage pipe installation Indoor unit Plug oS N N Md Water storage pipe 6 2 7 Lifting pipe setting of indoor unit with water pump The length of lifting pipe should not exceed the pump head of indoor unit water pump Pump head of big four way cassette 75
15. 2 4 1 4 Full water malfunction If the water level switch is inserted well Yes Y eater ever swatch Yes Replace the water level switch is broken Y If the water pump is normal gt Insert the water level switch well No v Replace the water pump Yes v Check PCB board or replace the indoor main PCB 2 4 2 For the outdoor unit 2 4 2 1 EO malfunction EO display Outdoor EEPROM malfunction Yes If the EEPROM chip is welded on PCB replace the PCB directly Otherwise check whether the EEPROM chip plugged in PCB well Yes Y Replace the outdoor main board NO Insert the EEPROM well 118 Troubleshooting 2 4 2 2 E2 malfunction E2 display Indoor outdoor units communication error Power off then turn on the unit 5 seconds later reconnect the power wire Is the error still displaying after several minutes Yes Check whether there s any interference Remove interference Such as too many lamps power Yes Increase the capacity of anti transformers Or the signal wire interference is too long Check whether the signal wire is shield cable or whether the No shield cable is earthing Yes Y Check whether the wire is Adopt
16. 1 2 2 Temperature protection of compressor top The unit will stop working when the compressor top temp protector cut off and will restart after the compressor top temp protector restart 1 2 3 Temperature protection of compressor discharge When the compressor discharge temp is getting higher the running frequency will be limited as below rules 1 102 C lt T5 lt 115 C decrease the frequency to the lower level every 2 minutes till to F1 f T5 gt 115 for 10 seconds the compressor will stop and restart till T5 90 1 2 4 Sensor protection at open circuit and breaking disconnection 104 Electrical Control Function 1 3 Operation Modes and Functions 1 3 1 Fan mode 1 Outdoor fan and compressor stop 2 Temperature setting function is disabled and no setting temperature is displayed 3 Indoor fan can be set to high med low auto 4 The louver operates same as in cooling mode 5 Auto fan 11 16 4 5 0 High 4 0 3 0 7 2 0 Y Low Ts 24 1 3 2 Cooling Mode 1 3 2 1 Outdoor PMW open angle control The unit is working in cooling mode with the EXV open 300P for 3 minutes then adjusting PMW open angle according to the temperature of compressor discharge every 2 minutes 1 3 2 2 Outdoor fan operation rules 141 High 27 25 N 20 Low 3 N X low temperature cooling Y Outdoor fan in low temperature cooling mode acts as follow
17. 43 6 50 5 46 2 46 6 57 5 52 2 61 6 79 5 57 2 66 7 01 6 52 2 76 Air Velocity and Temperature Distributions Reference Data 6 Air Velocity Distributions Reference Data Airflow velocity m AE AS Um SM cm n Um Lm en 3m Electric Characteristics 7 Electric Characteristics 22020 196 24 10 Note MFA Max Fuse Amps A 8 Sound Levels 1 4m KD Microphone Noise level dB A Model 9 Accessories Installation Fittings Installation paper board 1 Tubing amp Fittings Soundproof insulation sheath on 1 some models Out let pipe sheath on some 1 models 1 Drainpipe Fittings Out let pipe clasp on some models omm Drain joint on some models sawn Remote controller 4 Frame Remote controller holder Remote controller amp Its Frame Mounting screw ST2 9x10 C H Remote controller manual X _ Others Installation accessory Expansible hook The product you have might not be provided the Installation hook following accessories Orifice i 17 The Specification of Power 10 The Specification of Power FIO qup 220 230V 60Hz Voltage INDOOR UNIT POWER POWER WIRING 1 3 1 0 CIRCUIT BREAKER FUSE A 15 10 Frequency and 220 2
18. I XT E MANN SC QN Y G TO INDOOR COMM BUS NOTE PLEASE x DED WIRE POWER SUPPLY 71 5 Electric Characteristics Outdoor Unit Hz Voltage in KVMODUAREH zo zoz 9 2020 2020 _ Note MFA Max Fuse Amps A 198 198 198 198 242 242 242 242 Electric Characteristics Power Supply MFA 20 30 35 40 72 Operation Limits 6 Operation Limits Cooling operation operation Drying operation Room temperature 17 32 17 32 0 50 Outdoor temperature 15 50 0 50 models with low temperature cooling system 1 If the air conditioner is used beyond the above conditions certain safety protection features may CAUTION come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 The optimum performance will be achieved during this operating temperature zone 73 Sound Levels 7 Sound Levels Outdoor Unit Microphone d H Be 1 0m Note H 0 5
19. AUTO FAN COOL DRY HEAT V A MODE ON OFF FAN SPEED COC 70 SWING SLEEP TIMER ON TIMER OFF AIR LED DIRECTION DISPLAY TURBO OO GOO OO 1 Adjust Decrease the set temp Keeping pressing will decrease the temp with 1 0 56 2 Adjust 2 Increase the set temp Keeping pressing will increase the temp with 1 C 0 55 3 MODE Once pressing running mode will be selected in the following sequence NOTE Heating mode not applicable 4 SWING Used to stop or start horizontal louver movement The louver will swing up and down automatically if push this button 5 RESET inner located Once the recessed RESET button is pressed all of the current settings will be cancelled and the controller will return to the initial settings 6 AIR DIRECTION Press this button to change the swing angle of the louver The swing angle of the louver is 6 degree for each press When the louver swing at a certain angle which would affect the cooling and heating effect of the air conditioner it would automatically change the swing direction No symbol will appear in the display area when press this button Not applicable to units without this function 7 LED Press this button to clear the digit display in the air conditioner press it again to activate it Not available for the units without LED display window 8 FAN SPEED Fan speed will be selected in fol
20. Capacity Btu h 2 Wall mounted installation mm ae Tl imm LL LL LJ am IL LI am LT I IL am IL LL I LL I LL LJ am LJ L 21000mm 85 Indoor unit installation 3 4 3 Install the pendant bolt 0 Ceiling installation Select the position of installation hooks according to the hook holes positions showed in upper picture Drill four holes of 212 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings 2 Wall mounted installation Install the tapping screws onto the wall Refer to picture below LI aS IL LI LI am IL ILI imm LI immi LI IL IL LII LL IL L 1 m i L 3 4 4 Install the main body D Ceiling installation The only installation method for the unit with drain pump Remove the side board and the grille Hanging arm Hanging screw bolt gt 4 mr Side board H If Grille 86 Indoor unit installation Locate the hanging arm on the hanging screw bolt Prepare the
21. 32 Ceiling amp Floor Ceiling amp Floor Type url eeen neden needed 34 2 DIMENSIONS 35 Service SPACE 36 4 VV IMG DIAGrAMS nennen eneen 37 2 Capacity EAR 38 6 Air Velocity Distributions Reference Data 39 Electric scicsssuiceseruscasvatwaasbanetennccartuieeanensacsereesamccnreesiens 41 Secun 41 CCOSS ONC S 42 10 The Specification of 42 4 4 7 1 11 0 0 21 43 QM Field Wiring DET 44 33 Features 1 Features 1 1 New design more modern and elegant appearance 1 2 Convenient installation The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow It is especially useful when installation of an air conditioner in the center of the ceiling is impossible due to a structure such as lighting 1 3 Two direction auto swing vertical amp horizontal and wide angle air flow Air flow directional control minimizes the air resistance and produces wider air flow to vertical direction The range of horizontal air discharge is widened which secures wider air flow distribution to provide more comfortable air circulation no matter where the unit is set up 1 4 Three level fan speed meets different air supply requirement 1 5 Water proof by uti
22. 40 30 40 35 FUSE A Indoor Outdoor 2 Indoor Outdoor Wiring Strong Electric Signal mm Field Wiring 9 Field Wiring KV36CM ARF21B Air Condition Link Circuit 202042890198 208 UNIT MAX UU WA WM MAN Power supply 1 Phase 220 240V WAX Use 3 core cable 25mm 29 for the models which with auxiliary electric heater PTC Use Score cable 3 1 0 for the others 3 core shielded cable 3 0 5 Power 1 220 240 18K 30K 3 core cable 3 2 5 36K 60K 3 core cable 4 0mm OUTDOOR UNIT KV48CM ARF21B y NY Power supply 1 220 240 WM WW Use 3 core cable 3x2 5mm for the models which with auxiliary electric heater PTC Ilse Score cable 3x1 0mm for the others 3 core shielded cable 3 0 5mm Power suppl 1 Phase 220 240V 18K 30K 3 cable 3x 2 36K 60K 3 core cable 3x4 0mm OUTDOOR UNIT GA Floor standing Floor standing T ype UE EEUU ter tue 54 Dimensions enne nenne nnne enun 55 eService Spatie 56 WINNO DIAGrAMS ERES 57 Electric Characteristics 58 5 SOUNA ECV CNS 59 gt ACCESSOS i 60 The Specification of Power 61
23. ELECTRIC EXPANSIVE OUTDOOR DC FAN OUTDOOR AC FAN bead dg __ __ 4 WAY VALVE EXHAUST TEMPERATURE SENSOR ame NOTE Four way valve CONDENSER 2 ae TEMPERATURE SENSOR SV OUTDOOR AMBIENT TEMPERATURE SENSOR HEATSINK TEMPERATURE SENSOR OPTIONAL TH T4 T3 CLA U JED ON RORY TO INDOOR COMM BUS NOTE PLEASE USE 3 CORE SHIELDED WIRE POWER SUPPLY 70 Wiring Diagrams KV60ODU CRF21 WIRING DIAGRAM OUTDOOR UNIT A 202075890671 Applicable to the units adopting DC motor only CODE PART NAME COMP COMPRESSOR CAP1 CAP2 MOTOR CAPACITOR CT AC CURRENT DETECTOR D DIODE MODULE EE eN p PIC ES ia 1 ELECTRIC EXPANSIVE VALVE FM1 FM2 OUTDOOR DC FAN OUTDOOR AMBIENT TEMPERATURE SENSOR HEATSINK TEMPERATURE SENSOR FAN1 FAN2 OUTDOOR FAN HIGH PRESSURE SWITCH EN Lense PFC INDUCTOR YIG L PRO LOW PRESSURE SWITCH 4 WAY VALVE MAIN BOARD e B EXHAUST TEMPERATURE SENSOR E T3 CONDENSER TEMPERATURE SENSOR j TH N A E N A ZN VN RED RED T dq JE TH 14 T3 L PRO C BOE MOTI3A Ov I8
24. system is ok Judge 2 Check whether outdoor ambient temperature is higher than 50 C No Y Judge 3 Check whether the outdoor unit is bad ventilation No y Judge 4 Check whether the heat exchanger is dirty v Judge 5 The refrigerant pipe is blocked No Replace outdoor board and check whether the system can run normally No v Yes Stop the unit Yes Make the outdoor unit ventilate well Yes Clean the heat exchanger Yes Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Yes Replace the electric control box y Yes Trouble is solved 3 126 Troubleshooting 2 4 2 10 P4 malfunction When compressor discharge temperature is higher than 115 C the unit will stop and unit runs again when compressor discharge temperature is lower than 90 C P4 display Temperature protection of compressor discharge Check whether the Check whether the compressor discharge temp Yes Stop leaking and add refrigerant refrigerant is leak is more than 115 C No Check whether the wiring connection is right between compressor discharge temp No gt Correct the wiring connection sensor and PCB
25. 6 E function SW6 SW3 ENC1 Factory Setting gt LO E mW ACTIVE INACTIVE cT SWITCH FOR MAIN SLAVE SETTING 5 ii i MAIN MAIN SLAVE actory i Setting e m AS ponnar SWITCH Tot r To AN SELECT i E pes a 12 21 TO WIRE CONTROLLER OUTPUT OUTPUT 0 GO UP AND i 22 DOWN BOARD L tA MAK Factory Setting TO CCM TO OUTDOOR COMM BUS COMM BUS 27 Electric Characteristics 5 Electric Characteristics Power EAN ES AF GNE GG KV36CC ARF21B 60 220 230 198 242 KV48CC ARF21B 60 220 230 Note MFA Max Fuse Amps A 28 Sound Levels 6 Sound Levels 1 4m Microphone Noise level dB A Model KV36CC ARF21B KV48CC ARF21B 29 7 Accessories Installation Fittings l Installation paper board 1 Tubing amp Fittings Soundproof insulation sheath on 1 some models Out let pipe sheath on some models Drainpipe Fittings Drain joint on some models JE mam DS Remote controller 4 Frame Frame Mounting screw ST2 9x10 C H SD Alkaline dry batteries AM4 Others Installation manual Installation accessory The product yo
26. Co 133 3 Controller 3 1Wireless Remote Controller 3 1 1RG51Q1 BGE SET TEMPERATURE C y ADJUST MODE ON OFF FAN SPEED SWING 4 ECO TIMER ON SWING peser OFF AIR DIRECTION General Function for wireless remote controller Rated voltage 3 0V 2pieces of LRO3 7 batteries Operation condition 5 60 134 Controller Buttons and functions 1 Adjust Decrease the set temp Keeping pressing will decrease the temp with 1 C 0 58 2 Adjust 4 Increase the set temp Keeping pressing will increase the temp with 1 C per 0 58 3 MODE Once pressing running mode will be selected in the following sequence eS Stee eho NOTE Heating mode not applicable 4 VERT SWING Used to stop or start horizontal louver movement or set the desired up down air flow direction The louver changes 6 degree in angle for each press If Keep pushing more than 2 seconds the louver will swing up and down automatically 5 HORIZ SWING Used to stop or start vertical louver movement 6 AIR DIRECTION Used to set the desired up down air flow direction The louver changes 6 degree in angle for each press 7 ON OFF For turning on or turning off the air conditioner 8 FAN SPEED Fan speed will be selected in following sequence once pressing this button LOW MED 9 TIME ON For time ON setting Once pressing this button
27. according to wiring diagrams Yes Y Judge The discharge temp sensor is broken Method Check whether the resistance of compressor discharge temp sensor is right refer to the Appendix 2 y No Replace the compressor discharge temp sensor b Yes v Replace outdoor main board Trouble 15 solved 127 2 4 2 11 malfunction When condenser high temp is more than 65 C unit will stop and unit runs again when outdoor pipe temp less than 52 C 5 display High temperature protection of condenser Replace the temperature sensor Check whether the condenser temperature is more than 65 C resistance of condenser temp sensor is correct refer to the Appendix 1 Yes Replace outdoor main board 50 i5 Judge 2 Check whether the heat exchanger is dirty Yes Clean the heat exchanger 1 Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Judge 3 The refrigerant pipe is blocked Judge 1 Check whether the outdoor ambient temperature is higher than Yes Stop the unit 128 2 4 2 12 P6 malfunction For single phase units P6 display
28. and 24 setting temperature when the air conditioner restarts after power failure And this may cause inconsistent displays on the wired controller and on the air conditioner You need to readjust the running status through the wired controller Installation Wiring Principle Sketch Wire Joint 5p Infraed Pipe _ fa FB li aes ase at aes aaa a ee 9 Core Shield Cable the length is decided by installation RUN bon Indoor Unit Switch Board Indoor Unit Installation Notice When the air conditioner needs the constant frequency wire controller be sure adding a wire joint with 5 terminal named A B C D E in indoor unit and fixing an infrared emitter whose anode and cathode connecting with A and near the receiver the indoor unit switch board then connecting the terminal 5 GND Run in the switch board to C D E respectively 141 While installing using Screwdriver or other tools to open the back cover from the inside Back cover of Wire Controller Front cover of Wire Controller LCD display Wood Mounting Turning cover screw M4X20 For the Terminal Group 15 standing After the back cover is out of the back cover so It 15 fastened to fix up the necessary to obligate holes and front cover first lock it is forbiden to fasten difectly to the one of the two then
29. be a dry and well ventilated place The support should be flat and horizontal Do not install the outdoor unit in a dirty or severely polluted place so as to avoid blockage of the heat exchanger in the outdoor unit If roof is built over the unit to prevent direct sunlight rain exposure direct strong wend snow and other scraps accumulation make sure that heat radiation from the condenser is not restricted More than 30cm 60 More than 30cm A Ss gt b More than 60cm e 200 11 77 3 Indoor unit installation 3 1 Cassette indoor unit installation 3 1 1 Service space for indoor unit 4 gt 1000mm gt 1000mm 7 30 60 Indoor unit installation Connecting point of Connecting point of drain pipe refrigerant pipe Liquid side eel Connecting point of 1 tha 7 refrigerant pipe Ceiling 2 Outlet Pane 880mm ceiling hole Ground gt 2500mm __ Remark R410A and 22 Cooling ARF21 R410A and 222 Cooling ARF21B 3 1 2 Bolt pitch Tubing side tm gt li 780 Hook location 840 Body 950 3 1 3 Insta
30. exceeds 10 hours pressing the button will increase the time by 1 hour Adjusting the figure to 0 00 will cancel time ON setting 10 ECO Sleep mode Select this function during the sleeping time It can maintain the most comfortable temperature and save energy This function is available on COOL HEAT or AUTO mode only NOTE While the unit is running under Energy saving mode it would be cancelled if press MODE FAN SPEED or ON OFF button 11 TIME OFF For time OFF setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjust the figure to 0 00 will cancel time ON setting 12 LOCK inner located Push this button to lock in all the current settings and the remote controller will not accept any operation except that of the LOCK Use the LOCK mode when you want to prevent settings from being changed accidentally Press the LOCK button again to cancel the LOCK function A lock symbol will appear on the remote controller display when the lock function is activated 13 RESET inner located Once the recessed RESET button is pressed all of the current settings will be cancelled and the controller will return to the initial settings 3 1 3 R51M C E Remote Controller Specifications 9 Environment Temperature Range 5 60 137 Introduction of Function Buttons on the Remote Controller SET TEMPERATURE C
31. malfunction Outdoor unit malfunction m N X off flash at5Hz flash at 0 5Hz Note Digital display is only available for 4 way cassette Timer Display digital Running lamp pris E1 For Cassette and Ceiling Floor models N Malfunction Defrosting Alarm lamp Communication malfunction between indoor 1 and outdoor units 2 Open or short circuit of T1 temperature sensor 3 4 5 Open or short circuit of T2 temperature sensor Open or short circuit of T2B temperature sensor N PCB and up down panel PCB 1 Communication malfunction between master unit and slave unit 3 Other malfunction of master unit or slave unit sx flash at5Hz O flash at 0 5Hz 7 A NO en ITI A NO Full water malfunction X X X X X 112 Troubleshooting For Floor standing models CN 113 Troubleshooting 2 3 Outdoor unit malfunction Outgoor EEPROM malfuncton 00000000 Top temperature protection ofcompressor 00000000 High pressure protection Only for 36K 52K PRO Low pressure protection Only for 36K 52K module protection High temperature protection of evaporator 114 Troubleshooting 2 4 Solving steps for typical malfunction 2 4 1 For the indoor unit 2 4 1 1 Open or short circuit of temperature sensor Check
32. shield cable Shield cable earthing v correct polarity P to P Q to Q gt Correct the connection E to E Yes Check whether the signal wire is broken Replace the signal wire No Check whether the signal wires insert on PCB well No Pull out and insert back Yes Replace indoor PCB is the error distinguished No Replace outdoor PCB 2 4 2 3 malfunction display Communication malfunction between IPM board and outdoor main board Is there least one LED in the IPM board light No Y Check the signal wire between the IPM module and the main Yes board is it connected good No v No y Replace IPM board and then check whether the system can run normally hi Replace outdoor main board and then check Yes normally Reconnect and retry Is error still display whether the system can run No Y Replace the electric control 5 Trouble 15 solved 120 Troubleshooting 2 4 2 4 E4 malfunction E4 display Judge 1 Outdoor condenser temp sensor T3 is malfunction Check whether the wiring of the condenser
33. table is for reference Reference value of inner Allowable maximum water flowrate diameter of pipe mm Slope 1 50 Slope 1 100 _ 2 39 7 For branch pipe 40 LII I 2 Attention Adopt PST or bigger pipe to be the main pipe For Vertical drainage pipe The following table is for reference PVC pipe Allowable maximum water flowrate l h diameter mm 25 For branch pipe 50 1440 PVC63 2760 Could be used for confluence pipe PVC75 67 5710 Attention Adopt PVCAO or bigger pipe to be the main pipe 94 Drainage pipe installation 6 2 3 Individual design of drainage pipe system gt The drainage pipe of air conditioner shall be installed separately with other sewage pipe rainwater pipe and drainage pipe in building gt drainage pipe of the indoor unit with water pump should be apart from the one without water pump 6 2 4 Supporter gap of drainage pipe gt general the supporter gap of the drainage pipe horizontal pipe and vertical pipe is respectively 1m 71 5m and 1 5m 2 0m gt Each vertical pipe shall be equipped with not less than two hangers gt Overlarge hanger gap for horizontal pipe shall create bending thus leading to air block LID E P p Pa Too long distance B Gas bag 6 2 5 The horizontal pipe layout should avoid converse flow bad
34. the another NOTE The connecting wire should be a little longer as to take away the switch board easily for maintenance The connecting wire should be a little longer as to take away the controller easily for maintenance specifications designs and information in this book are subject to change without notice for product improvement 142
35. the digital display tube will T3 show 9 the temp is higher than 70 degree the digital Outdoor ambient temp T4 display tube will show 70 If the indoor unit is not connected the digital display tube will show The display value is between 13 120 degree If the temp is lower than 13 degree the digital display tube will show 13 If the temp is higher than 99 degree the digital display tube will show single digit and tens digit For example the digital display tube show 0 5 it means the compressor discharge temp is 105 degree the digital display tube show 1 6 it means the compressor discharge temp is 116 degree 02 03 04 05 7 0 Compressor discharge temp Tp For KVABODU ARF21B KV60ODU CRF21 The display value is between 13 129 degree If the temp is lower than 13 degree the digital display tube will show 13 AD value of current The display value is hex number AD value of voltage Off 0 Fan only 1 Cooling 2 Heating 3 Forced cooling 4 Indoor unit running mode code For KV480DU ARF21B KV60ODU CRF21 Fan only 1 Cooling 2 Heating 3 Outdoor unit running mode code Off 0 Fan only 1 Cooling 2 Heating 3 Forced cooling 4 Actual data 4 If the value is higher than 99 the digital display tube will show EXV open angle single digit and tens digit For example digital display tube show 2 0 it means the EXV open angle is 120 4 480 Frequency lim
36. unit installation Side Discharge Unit 4 Outdoor unit installation Side Discharge Unit 4 1 Service space for outdoor unit Wall or obstacle e Air inlet r1 230cm Maintain channel N 260cm 7 Air inlet E S J Air outlet N Al Fig 6 5 Fix with bolt 4 2 Bolt pitch 4 3 Install the Unit Since the gravity center of the unit is not at its physical center so please be careful when lifting it with a sling Never hold the inlet of the outdoor unit to prevent it from deforming 90 Outdoor unit installation Side Discharge Unit Do not touch the fan with hands or other objects Do not lean it more than 45 and do not lay it sidelong Make concrete foundation according to the specifications of the outdoor units Fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong wind Fix with bolt 91 Refrigerant pipe installation 5 Refrigerant pipe installation 5 1 Maximum pipe length and height drop Considering the allowable pipe length and height drop to decide the installation position Make sure the distance and height drop between indoor and outdoor unit not exceeded the data in the following table 5 2 The procedure of connecting pipes 5 2 1 Choose the pipe size according to the specification table 5 2 2 Confirm the cross way of the pipes 5 2 3 Measure the necessary pipe length 5 2 4 Cut the select
37. unit show O If the temp is higher than 70 degree the digital display tube will show 70 If the capacity demand is 0 the Condenser pipe temp of 3 indoor unit digital display tube will show 0 If the indoor unit is not 5 connected the digital display tube will show 1 Indoor unit capacity demand code Actual 10 mE l If capacity demand code is higher than 99 the digital display 2 Indoor unit capacity demand code tube will show single digit and tens digit For example the B digital display tube show 5 0 it means the capacity demand 24 is 15 the digital display tube show 60 it means the capacity demand is 6 0 If the indoor unit is not connected the digital 3 3 Indoor unit capacity demand code display tube will show 109 Troubleshooting 2 T roubleshooting 2 1 Display board 2 1 1 Icon explanation on indoor display board Big cassette Temporary button Digital LED Infrared signal receiver Operation lamp Timer indicator Alarm indicator PRE DEF indicator cooling and heating type or fan only indicator cooling only type 2 1 2 Icon explanation on indoor display board Ceiling amp floor 10 Operation lamp OPERATION CD D TIMER DEF FAN indicator cooling and heating ALARN fan only indicator cooling only type Timer indicator NNUAL Alarm indicator 1 Temporary button Infrared sig
38. 042890195 FUNCTION OF SWITCH 51 FOR CCM UNIT ADDRESS O F of the 52 and ON OFF of the 51 mean the addresses of the different units Respectively 51 52 ADDRESS 51 52 ON 0132 ON 16 48 Al 15 1131168 17 ENC1 SWITCH FOR POWER NUMBER POWER 1400 51 SWITCH SELECT TEMP i 12 Fan motor 9919119 do stop Factory Settng INDOOR POWER 5 NET Hu E 514 A MAIN CONTROL BOARD CN4 uu 9 ERROR our SW CN23 1 1 CONTROL ha FOR TEMP COMPENSATION ON ON sw3 ON ON 12 12 12 12 VALUE 3 4 According to WHITE CC E function Fact d D S NOTE PLEASE USE SHIELD LINE 0 TO WIRE DISPLAY BOARD CONTROLLER an eee XT3 TOO Rd aie 55556 RRR we RORY RRR TO OUTDOOR CCM COMM BUS COMM BUS 13 Capacity Tables 5 Capacity Tables 5 1 Cooling Capacity KV24CC ARF21 Cooling Indoor Conditions kW 21 15 C DB WB SC Input TC 24 17 C DB WB SC nput TC 27 19 C DB WB SC C C nput T 5 32 23 C DB WB Notes Total capacity kW SC Sensible heat capacity kW Input Input power kW Outdoor conditions DB 228 241 254
39. 0mm Pump head of compact four way cassette 500mm The drainage pipe should be set down inclined after the lifting pipe immediately to avoid wrong operation of water level switch Refer the following picture for installation reference 4 Flexible pipe 300mm Hanger Down incline pipe than 50mm More than 25mm A Length of horizontal pipe lt 150mm NN B Lift height pump head of water pump VN 2 pu N Ee 2 6 2 8 Blowhole setting For the concentrated drainage pipe system there should be a designed blowhole at the highest point of main pipe to ensure the condensate water discharge smoothly The air outlet shall face down to prevent dirt entering pipe gt Each indoor unit of the system should be installed it The installation should be considering the convenience for future cleaning Indoor unit Plug San Blowhole Indoor unit Plug 6 2 9 The end of drainage pipe shall contact with ground directly 96 Drainage pipe installation 6 3 Drainage test 6 3 1 Water leakage test After finishing the construction of drainage pipe system fill the pipe with water and ke
40. 18K 30K 3 core cable 3x 2 5mm 36K 60K 3 core cable 3 4 0mm 44 3rd Generation Ceiling amp Floor 3 Gener ation Ceiling amp Floor lo 46 2 DIMENSIONS NETTE TI 47 3 Service SPACE nennen 48 4 xS Vin 49 5 Electric Characteristics 50 5 Sound 50 il PIC COSS OMICS Im 51 8 The Specification of 51 9 Field VVIEIFIO 52 45 Features 1 Features 1 1 New design more modern and elegant appearance 1 2 Convenient installation The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow is especially useful when installation of an air conditioner the center of the ceiling is impossible due to a structure such as lighting 1 3 Two direction auto swing vertical amp horizontal and wide angle air flow Air flow directional control minimizes the air resistance and produces wider air flow to vertical direction The range of horizontal air discharge is widened which secures wider air flow distribution to provide more comfortable air circulation no matter where the unit is set up 1 4 Three level fan speed meets different air supply requirement 1 5 New foam drain pan
41. 2555015222 LE YX LON OFFI ALARMII To outdoor Remote Alarm Comm Bus 11 Control Output L Ceiling Floor CN29 CN28 MOTI3A To CCM Comm Bus To outdoor Comm Bus Wiring Diagrams 2020 0390580 DISPLAY TO WIRE BOARD CONTROLLER BLACK MIDDLE PIPE TEMP VV KEAV _ROOM TEMP 49 Electric Characteristics 5 Electric Characteristics KV36CM ARF21B 60 220 230V 198V 242V KV48CM ARF21B 60 220 230V 198V 242V Note MFA Max Fuse Amps A 6 Sound Levels 4 ENS Microphone 218 1m 1 5m Air outlet side 1m 3 Microphone 7 7 7 oe 2 zt Ceiling Floor Noise level dB A id Ta 50 7 Accessories 1 Remote controller Remote controller amp Its 2 Remote controller holder holder 5 5 Owner s manual 5 Owner s manual 8 The Specification of Power Model KV36CM ARF21B KV48CM ARF21B Frequency 220 230V 60 2 220 230V 60 2 and Voltage INDOOR UNIT POWER POWER 3 1 0 3 1 0 mm CIRCUIT DEN 15 10 15 10 a 220 230V 60H 220 230V 60H and Voltage OUTDOOR UNIT POWER POWER dii 3X4 0 3X4 0 mm CIRCUIT
42. 30V 60H Voltage OUTDOOR UNIT POWER POWER WIRING 2 3X2 5 CIRCUIT BREAKER FUSE A ewan Indoor Outdoor Connecting Wiring 3x0 5 Weak Electric Signal mm Indoor Outdoor Connecting Wiring Strong Electric Signal mm 11 Field Wiring KV24CC ARF 21 Field Wiring Air Condition Link Circuit 202042890198 OUTDOOR UNIT NDOOR UNIT WAX Power supply NY 1 Phase 220 240 Use 3 core cable 3 2 5 for the models which with auxiliary electric heater PTC Ilse 3 core cable 3x1 0mm for the others 3 core shielded cable 3 0 5 Power supply 1 220 240V 18K 30K 3 core cable 3x2 5mm 36K 60K 3 core cable 4 0mm Super Slim Cassette Type Super Slim Cassette Type CUI SS 21 DIMENSI N mE TIL 25 SerVICe SPACE 26 Ming 27 Electric Characteristics 28 SGUN isa max Md E 29 SAACCOSSOLIOS iuuenis REM 30 The Specification of Power 31 WINO TI T ULT 32 20 Features 1 Features 1 1 Overview gt Compact design super slim body size less space required in installation gt Each louver can be separately controlled more comfortable air blow is possible gt Auto lifting panel design more convenient to clean and maintai
43. 40 3 core cable 3x2 5mm for the models which with auxiliary electric heater PTC Use Score cable 3 1 0 2 for the others 3 core shielded cable 3 0 5mm Power supply 1 Phase 220 240V 18K 30K 3 core cable 3x 2 5mm 36K 60K 3 core cable 3x4 0mm OUTDOOR UNIT KV60FM ARF21 202043890109 Power supply 1 Phase 220 240V Use 3 core cable 3x2 5mm for the models which with auxiliary electric gt Use 3 cable 3x1 0mm2 for the others 2 3 core shielded cable 3X 0 5mm Power supply 3 Phase 220 240V 30K 60K 4 core cable 4 5 OUTDOOR UNIT 62 Outdoor Units Part 3 Outdoor Units DIMENSIONS 64 2 9801 WIGS SPACE eisai 66 5 ___________ 67 68 9 Electric CharacterisStiCS coss vega as TOO CU S GER ex 72 6 Operation AIMS meenemen UE 73 74 63 Dimensions 1 Dimensions NN NN NN 8 0 d T A Lo 0 9 nh X
44. CO TIMER ON 19 Econom oe ration 1 3 11 TIMEROFF Lock 13 1 Adjust v Decrease the set temp Keeping pressing will decrease the temp with 1 0 55 2 Adjust Increase the set temp Keeping pressing will increase the temp with 1 C per 0 55 3 MODE Once pressing running mode will be selected in the following sequence den NOTE Heating mode not applicable 4 VERT SWING Used to stop or start horizontal louver movement The louver will swing up and down automatically if push this button AIR DIRECTION Used to set the desired up down air flow direction The louver changes 6 degree in angle for each press 5 HORIZ SWING Used to stop or start vertical louver movement 6 FAN SPEED MODE Press the Mode and Fan speed button simultaneously for 2 seconds The remote 136 Controller controls into faceplate setting state and the LCD shows F2 Press the TEMPUP to control the faceplate and press the TEMP DOWN Y to control the faceplate down Press any button to exit the faceplate setting state then the LCD back to the normal display 7 ON OFF For turning on or turning off the air conditioner 8 FAN SPEED Fan speed will be selected in following sequence once pressing this button AUTO LOW MED 9 TIME ON For time ON setting Once pressing this button the time will increase by 0 5 hour When the set time
45. DISPLAY TO WIRE FUNCTION OF SWITCH BOARD Sa ENC1SWITCH FOR POWER SW4 LN RESTART NUMBER POWER 511 FOR UNIT NUMBER FOR 00 o 2200 0 BHP me CN10 i ACTIVE NACTIVE h 28008 1 OHP 0 F of the ENC2 and ON OFF 1 1 of the Swi mean the addresses ON 8 3600W 1 2HP of the different net units SW4 2 SW1 J3 SW6 SW5 SW2 SW3 ENC1 CN14 2 MAIN CONTROL BOARD ____ 46000W 6 0HF Fan motor do not stop According to E function T2B 2 gt lt MEN WIRE 5 FOR MAIN SLAVE SETTING CONTROLLER OUTDOOR Ta INDOOR UNIT POWER UP m COMM BUS COMM BUS ne 202042790257 NOTE PLEASE USE SHIELDED WIRE l WIRE CONTROLLER INDOOR UNIT o d 202042890231 32 47 ON ON ON ettin 119 d eren TES LE ili Factory WS 16 31 48 63 m FII 1 8 105004 a 120001140001 m MAIN CONTROL BOARD 10 ENC2 505 ON ON ON lii 12 1 2 1 2
46. DLE PIPE TEMP 1 ROOM TEMP ZM 2 30d 3 A X Fan Capacitor Fan AC Motor A 3 6 202043890072 57 Electric Characteristics 5 Electric Characteristics KV36FM ARF21 60 220 230V 198 242V KV60FM ARF21 60 220 230V 198V 242V Note MFA Max Fuse Amps 58 Sound Levels 6 Sound Levels Noise level dB A Model 59 7 5 Safety Lock Self tapping Screw 3 9 25 EN Flat Washers n 22 Bushing Sleeve Cover EM 02 Sound Heat Insulation Sleeves Pips hole retention En Remote Battery Connection Cables 1 60 The Specification of Power 8 The Specification of Power Frequency and Voltage 220 230V 60Hz 220 230V 60Hz INDOOR UNIT POWER 7 POWER WIRING CIRCUIT BREAKER FUSE A 15 10 15 10 Frequency and Voltage 220 230V 60H 220 230V 60H OUTDOOR UNIT POWER 7 POWER WIRING 3X4 0 4x5 0 CIRCUIT BREAKER FUSE A 4030 50 40 Indoor Outdoor Connecting Wiring Weak Electric Signal mm Indoor Outdoor Connecting Wiring Strong Electric Signal mm 61 Field Wiring 9 Field Wiring KV36FM ARF21 Air Condition Link Circuit 202042890198 INDOOR UNIT Power supply Jase 220 2
47. Maintain channel N NN AE d ve Alir inlet than Soom DJ 200 7 66 3 Piping Diagrams Piping Diagrams KV240DU ARF21 INDOOR OUTDOOR Electronic E i Ny 30000 T3 Condenser temp sensor HEAT EXCHANGE HEAT EVAPORATOR T1 Room temp T4 Ambient EXCHANGE T2 Evaporator CONDENSER temp sensor temp sensor middle T2B Evaporator temp sensor Accumulator 2097918619196 NL TU 77 3 sensor 4 PN Ee 32 gt GAS SIDE COMPRESSOR Note KV240DU ARF21 have no EXV KV36ODU ARF21 KV480DU ARF21B KV60ODU CRF21 INDOOR OUTDOOR Electronic LIQUID SIDE CAPILIARY TUBE expansion valve N 1 4 A TS OK 0900 temp sensor HEAT EXCHANGE HEAT EVAPORATOR EXCHANGE t T2 Evaporator 22 temp sensor Spee ls middle T2B Evaporator High pressure temp sensor switch outlet Oil separator Accumulator 2 2 T Discharge NLA M LA N E temp sensor GAS SIDE Low pressure C switch Oil return Capillary
48. acle Ceiling d 1Ocm min 10 Piping side Piping side min is necessary 30cm min 15 necessary 3 5 2 Installing 3 5 2 1 Anti falling To prevent the indoor unit from falling you must a Pay full attention to the unit because its long outer shape makes it easy to fall b Firmly fix the unit to the wall or in the ground to avoid accidental falling Screws Safety Lock 1 39 25 washer Screws Air Outlet 3 9 25 Ly Ly TA amp Flat washer I Screw hole A the unit 4 2 Screws A 3 9x 10 i on the unit Y 3 5 2 2 Dismounting lower front panel Please take off the lower front panel before connecting the pipes wires Pull down the two knobs on the grille take off the two screws then the air inlet grille goes free 88 Indoor unit installation 3 5 2 3 Take the Pipe Clip off before connecting the pipes and wiring fit it when these finished Use accessories to connect the pipes wires on both sides and back side Pipe wire hole position on back side Pipe wire hole position on the bottom P Wiring N Refrigerant drain Refrigerant drain Hole 35 Pipe hole L Pipe hole Pipe wire hole positions on both sides N Drain Pipe Refrigerant Pipe Reamer Joint Reamer Joint Refrigerant drain 35 Pipe hole 85 89 Outdoor
49. ate wire tube and remain at least 300mm gap Select wiring according to table in indoor part named the specification of power make sure the selected wiring is not smaller than the data shown in the table Select different colors for different wire according to relevant regulations Do not use metal wire tube at the place with acid or alkali corrosion adopt plastic wire tube to replace it There must not be wire connect joint in the wire tube If joint is a must set a connection box at the place The wiring with different voltage should not be in one wire tube Ensure that the color of the wires of outdoor and the terminal No are same as those of indoor unit respectively 101 11 Test operation 11 1 The test operation must be carried out after the entire installation has been completed 11 2 Please confirm the following points before the test operation VV VV VV VV V WV The indoor unit and outdoor unit are installed properly Tubing and wiring are correctly completed The refrigerant pipe system is leakage checked The drainage is unimpeded The ground wiring is connected correctly The length of the tubing and the added stow capacity of the refrigerant have been recorded The power voltage fits the rated voltage of the air conditioner There is no obstacle at the outlet and inlet of the outdoor and indoor units The gas side and liquid side stop valves are both opened The air condition
50. ation 76 2 Location selection Location selection 2 1 Indoor unit location selection WONO NONO NO NO NON NO NON ON The place shall easily support the indoor unit s weight The place can ensure the indoor unit installation and inspection The place can ensure the indoor unit horizontally installed The place shall allow easy water drainage The place shall easily connect with the outdoor unit The place where air circulation in the room should be good There should not be any heat source or steam near the unit There should not be any oil gas near the unit There should not be any corrosive gas near the unit There should not be any salty air neat the unit There should not be strong electromagnetic wave near the unit There should not be inflammable materials or gas near the unit There should not be strong voltage vibration 2 2 Outdoor unit location selection VVVV NO NO NO NON ON ON The place shall easily support the outdoor units weight Locate the outdoor unit as close to indoor unit as possible The piping length and height drop can not exceed the allowable value The place where the noise vibration and outlet air do not disturb the neighbors There is enough room for installation and maintenance The air outlet and the air inlet are not impeded and not face the strong wind It is easy to install the connecting pipes and cables There is no danger of fire due to leakage of inflammable gas It should
51. ay cause leakage Refer the following table for different pipe connection Pipe Diameter 1 4 6 35 144 176 1420 1720 3 8 9 52 333 407 3270 3990 1 2 12 7 504 616 4950 6030 5 8 15 9 630 770 6180 7540 3 4 19 990 1210 9270 11860 93 Drainage pipe installation 6 Drainage pipe installation Install the drainage pipe as shown below and take measures against condensation Improper installation could lead to leakage and eventually wet furniture and electrical devices 6 1 Installation principle gt Ensure least 1 100 slope of the drainage pipe gt Adopt suitable pipe diameter gt Adopt nearby condensate water discharge 6 2 Key points of drainage water pipe installation 6 2 1 Considering the pipeline route and elevation gt Before installing condensate water pipeline determine its route and elevation to avoid intersection with other pipelines and ensure slope is straight 6 2 2 Drainage pipe selection gt The drainage pipe diameter shall not be smaller than the drain hose of indoor unit gt Choose the suitable pipe according to the water flowrate and drainage pipe slope the water flowrate is decided by the capacity of indoor unit Relationship between water flowrate and capacity of indoor unit Capacity x1000Btu Water flowrate l h 12 18 24 30 36 42 48 Calculate the total water flowrate for the confluence pipe selection based on the above table For horizontal drainage pipe The following
52. ble fan outdoor unit 3 Nomenclature 3 1 Indoor Outdoor Unit K V 36 CM ARF21 B Revision Blank no revision First Revision B Second Revision Series Code Refrigerant RF2 R410A Power supply A 220 1 60 C 220 3 60 B 380 3 60 Model Type CC Cassette Type FM Floor mount CM Ceiling floor ODU Universal Outdoor Unit Capacity x1000Btu h Compressor type V Inverter Koppel Features 4 Features 4 1 Universal outdoor unit design Indoor unit with the same capacity as the outdoor unit can be matched 4 2 High efficiency and energy saving Thanks to the DC inverter technology and optimized piping system the EER and COP of whole series can easily reach A class 4 3 Low noise and low starting current Thanks to the DC inverter technology the system can work with low noise and very small starting current 4 4 Intelligent refrigerant adjustment technology Throttle part is made up of capillary and electronic expansion valve EXV The outdoor unit can output the most accurate capacity in any condition 4 5 Working in cooling mode under 15 Outdoor unit built in with low ambient kit it can control the outdoor unit s fan and cooling can be performed throughout the year for computer rooms banquet halls etc Wide operation range covers outdoor temperatures as low as 15 for cooling 4 6 Indoor amp ou
53. ble to connect duct pipe hence air supplying from the four sides to nearby small room For duct connecting 16 The connecting pipe and drop height is higher Max pipe length up to 50m refer to D and Max drop height up to 30m referto 2 17 Optimal design smaller Control Box Space saving and convenient for wiring Using fire resistance galvanized steel for E box material Metal box make the control part more stable and prevent damaging 18 New Panel optional 360 degree air outlet 10 Dimensions 2 Dimensions Drain side Hook ocation 9850 Panel 780 Hook ocation 940 Body 950 Pane Unit mm Connecting point of 7 refrigerant pipe Liquid side Connecting point of refnger ant pipa 1 4 1 a XX 880mm hole Pane Ground Unit mm KV24CC ARF21 230 15 9 9 52 3 Service Space AAL A gt 1000 _ gt 1000mm gt 1000 LAE BAP og CU Wiring Diagrams 4 Wiring Diagrams KV24CC ARF21 WIRING DIAGRAMING 202
54. e switch and main control board is connected well or correctly Yes Y Judge 2 Whether the high pressure protector is broken Method Short connect high pressure protector socket check whether the system can run normally No Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient temperature is higher than 50 C No Y Judge 4 Check whether the outdoor unit is bad ventilation Y Judge 5 Check whether the heat exchanger is dirty Judge 6 Check whether the refrigerant pipe is blocked Replace outdoor main board No Connect it well Yes 5 Replace high pressure protector Stop unit Yes Make the outdoor unit ventilate well Yes Clean the heat exchanger Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Yes 124 2 4 2 8 P2 malfunction Only for 36K 52K P2 display Low pressure protection Judge 1 Whether the wiring between the low pressure protector and main control board is connected well or correctly Yes Y Judge 2 Whether the low pressure protector is broken Method Short connect the low
55. e controllers enter into original state ON OFF button When in off state press this button the indicator is on the wire controller enter into on state and send setting information to indoor PCB When in on state press this button the indicator is off and send instruction If timer on or timer off has been set it cancel this setting then send instruction to stop the machine Adjust button Set indoor temperature up If press and hold on it will increase at 1degree per 0 5 second Adjust button Set indoor temperature down if press and hold on it will decrease at 1degree per 0 5 Second Swing button First press start swing function second press stop swing Match to some model with swing function Economy operation button press this button the indoor unit operates in economy mode press again exit this mode it may be ineffective for some models Fan speed button press this button consecutively the fan speed will circle as follow W Lock button hidden When you push the LOCK button current settings are locked in and wire controller does not accept any operation except that of the LOCK button Use the lock mode when you want to prevent setting from being changed accidentally or play fully Push the LOCK button again when you want to cancel the LOCK mode Name and function of LCD on the wired controller 15 Operation mode indication 4 op 3 Follow me function ON OFF
56. ed pipe with pipe cutter gt Make the section flat and smooth P X X O o7 Lean Crude Burr Z 2 Z 2 2 LP 2 5 2 5 Insulate copper pipe gt Before test operation the joint parts should not be heat insulated 5 2 6 Flare the pipe gt Insert a flare nut into the pipe before flaring the pipe gt According to the following table to flare the pipe E EM EE A mm Pipe diameter Flare shape fe gt After flared the pipe the opening must be seal by end cover or adhesive tape to avoid duct or exogenous impurity come into the pipe 5 2 Drill holes if the pipes need to pass the wall 5 2 8 According to the field condition to bend the pipes so that it can pass the wall smoothly 5 2 9 Bind and wrap the wire together with the insulated pipe if necessary 92 Refrigerant pipe installation 5 2 10 Set the wall conduit 5 2 11 Set the supporter for the pipe 5 2 12 Locate the pipe and fix it by supporter gt For horizontal refrigerant pipe the distance between supporters should not be exceed 1m gt For vertical refrigerant pipe the distance between supporters should be exceed 1 5m 5 2 13 Connect the pipe to indoor unit and outdoor unit by using two spanners gt sure to use two spanners and proper torque to fasten the nut too large torque will damage the bellmouthing and too small torque m
57. ep it for 24 hours to check whether there is leakage at joint section 6 3 2 Water discharge test 1 Natural drainage mode the indoor unit with outdoor drainage pump Infuse above 600ml water through water test hole slowly into the water collector observe whether the water can discharge through the transparent hard pipe at drainage outlet 2 Pump drainage mode 2 1 Disconnect the plug of water level switch remove the cover of water test hole and slowly infuse about 2000 water through the water test hole be sure that the water will not touch the motor of drainage pump Cover of test hole Test hole 11 23 Drain plug 2 2 Power on and let the air conditioner operate for cooling Check operation status of drainage pump and then connect the plug of water level switch check the operation sound of water pump and observe whether the water can discharge through the transparent hard pipe at drainage outlet In light of the length of drainage pipe water shall be discharged about 1 minute delay 2 3 Stop the operation of air conditioner power off the power supply and put the cover of water test hole back to the original place a After stopping the air conditioner for 3 minutes check whether there is anything abnormal If drainage pipes have not been distributed properly over back flow water shall cause the flashing of alarm indicator at remote controlled receiving board and even wate
58. er is pre heated by turning on the power 11 3 Test operation Set the air conditioner under the mode of COOLING by remote controller and check the following points Indoor unit VO VVVVV VV WV Whether the switch on the remote controller works well Whether the buttons on the remote controller works well Whether the air flow louver moves normally Whether the room temperature is adjusted well Whether the indicator lights normally Whether the temporary buttons works well Whether the drainage is normal Whether there is vibration or abnormal noise during operation utdoor unit Whether there is vibration or abnormal noise during operation Whether the generated wind noise or condensed of by the air conditioner have influenced your neighborhood Whether any of the refrigerant is leaked 102 Electrical Control Function Part 5 Electrical Control System 1 Electrical Control Function saaassnnnnnnnnnnnnnnnnnns 104 2 TroubleSnOOUING unsters 110 3 Controller eee en nnne essi 34 103 Electrical Control Function 1 Electrical Control Function 1 1 Definition T1 Indoor room temperature T2 Coil temperature of indoor heat exchanger middle T2B Coil temperature of indoor heat exchanger outlet T3 Coil temperature of condenser T4 Outdoor ambient temperature T5 Compressor discharge temperature 1 2 Main Protection 1 2 1 Time delay at restart for compressor
59. etting temperature is modified the machine will choose running function again 1 3 5 Drying mode Drying mode works the same as cooling mode in low speed All protections are active and the same as that in cooling mode 1 3 6 Timer function 1 3 6 1 Timing range is 24 hours 106 Electrical Control Function 1 3 6 2 Timer on The machine will turn on automatically when reaching the setting time 1 3 6 3 Timer off The machine will turn off automatically when reaching the setting time 1 3 6 4 Timer on off The machine will turn on automatically when reaching the setting on time and then turn off automatically when reaching the setting off time 1 3 6 5 Timer off on The machine will turn off automatically when reaching the setting off time and then turn on automatically when reaching the setting on time 1 3 6 6 The timer function will not change the AC current operation mode Suppose AC is off it will not start up firstly after setting the timer function And when reaching the setting time the timer LED will be off and the AC running mode has not been changed 1 3 6 7 The setting time is relative time 1 3 7 Economy function Sleep mode 1 3 7 1 The sleep function is available in cooling heating not applicable or auto mode 1 3 7 2 Operation process in sleep mode is as follow When cooling the setting temperature rises 1 C be lower than 30 every one hour 2 hours later the setting temperature stops
60. excellent capacity 4 The adoption of the most advanced 3 Dimensional Screw fan Reduces the air resistance passing through Smoothes the air flow Makes air speed distribution to the heat exchange uniform 3 Dimensional Screw Fan 5 Fresh air makes life healthier and more comfortable Fresh Air Intake Lean over 1 50 Features 8 Different color panels to be chosen White Gray Black White Gray optional Blue optional Black optional 9 Swing angle of louver 1 Add one more swing motor one motor drive two louvers Controlling the interspace of each part minimizing the angle loss 2 The swing angle of the first louver are 40 42 degrees and the second louver are 37 38 degrees New evaporator and inner configuration design can acquire high heat exchanger effect dn 11 New outlet frame design to make phenomena of coagulation with great improvement prevent the condensing water from damaging the air guide strip 12 Adding rib on the panel of fan outlet which can avoid the air outlet flow directly to people Adding Rib 13 4 speeds available optional super high fan speed design suitable for large building over 3m high Vr NW v y 42 24 14 Adding digital tube displaying the display board LED can display the Error Code to make malfunction checking easier Features 15 Reserve spaces for air side outlet it is availa
61. height of outdoor unit Model Noise level dB A 74 Installation Part 4 Installation 1 Installation Procedure 76 2 LOCATION Selection copiii Eau aoo rs 77 Indoor unit installation 78 4 Outdoor unit installation Side Discharge Unit 97 5 Refrigerant pipe installation 92 6 Drainage pipe installation 94 7T Vacuum Drying and Leakage Checking 98 8 Additional refrigerant charge 99 9 Engineering of insulation 100 10 Engineering of electrical wiring 101 11 Test ODGFallOLD laua unius aa 102 75 Installation Procedure 1 Installation Procedure Indoor unit installation Outdoor unit installation location selection location selection Indoor unit installation Outdoor unit installation Refrigerant pipe installation and insulation Refrigerant pipe installation and insulation Drainage pipe installation and insulation Drainage pipe installation and insulation Vacuum drying and leakage checking Additional refrigerant charge Insulation the joint part of refrigerant pipe Wiring connection and electric safety checking Test oper
62. indication AUTO GOOL ORY REAT FAN ONLY k Fan speed indication Timer ON OFF Temperature display zone Operation mode indication When press MODE button the following mode be selected in circle Auto Cool Dry Heat Fan only Auto Auto Cool Dry gt Heat gt Fan only gt Auto Heat mode is not applicable 140 Controller Timer When adjust setting on time or only on time is set the ON is lighted When adjust setting off time or only off time is set the OFF is lighted If on and off timer are both set the ON and OFF are both lighted Follow me function There is a temperature sensor inside the wire controller after setting temperature it will compare the two temperatures and the space of wire controller will be the same as setting temperature It is available under cooling heating auto mode ON OFF indication When it is on the icon display otherwise it is extinguished Fan speed indication There are four fan modes low middle high auto For some models no middle fan then the middle fan is seen as high speed Lock When the LOCK button is pressed the icon appears and other buttons is unable press again the icon disappears Temperature display zone Generally it displays setting temperature it can be adjusted by press temperature button AandY fan mode no display here Remark The wired controller will reset to factory setting with auto mode auto fan
63. is broken the resistance of the two ports is for 18K 24K 30KBtu h Check whether the PFC module broken for 36K 48KBtu h E check whether the system Yes can work normally No eplace the compressor check whether the system Yes can work normally Replace the connecting line or reactor or replace the PFC module v Trouble is solved 129 2 4 2 13 P6 malfunction For three phases units P6 display module protection Check whether the voltage range of P N on IPM module is No normal DC 350 650V Check whether the connecting line between main board and the IPM module is connected tightly Connect it tig Yes No Check whether the connecting line of the compressor is connected correctly or tightly check ok Yes No eplace the IPM module check whether the system check ok or not Connect it well Check whether the input power supply is correct 380 415V 3N 50Hz Regulate it to correct then check whether the system can work normally htly heck whether th power supply line is connected correctly and tightly No onnect it correctly No and tightly check ok or not No or not connected Check whether the lines in E part box are Co
64. it Bit7 caused by IGBT radiator 10 11 12 13 4 1 The display value is hex Frequency limit number For example caused by PFC the digital display tube m Bit5 Frequency limit show Bit5 1 Frequency limit symbol caused by 14 Bit3 1 Bit1 1 Frequency limit It means frequency limit caused by T2 caused by 4 and Bit3 Frequency limit current caused by T3 Frequency limit 5 108 Electrical Control Function caused by Frequency limit Bit1 caused by current Frequency limit caused by voltage DC fan motor speed The display value is between 13 120 degree If the temp is lower than 13 degree the digital display tube will show 13 If the temp is higher than 99 degree the digital display tube show single digit and tens digit For example the digital display tube show 0 5 it means the IGBT radiator temp is 105 degree the digital display tube show 1 6 it means radiator temp RESERNEG IGBT radiator temp is 116 degree For KV48ODU ARF21B 8 KV60ODU CRF21 The display value is between 30 120 degree If the temp is lower than 30 degree the digital display tube will show 30 If the temp is higher than 99 degree Indoor unit number The indoor unit can communicate with outdoor unit well Condenser pipe temp of 1 indoor unit If the temp is lower than 0 degree the digital display tube will Condenser pipe temp of 2 indoor
65. k whether the system can run normally v Check the power supply Y 356V for 24KBtu h DC277 410V for 36K 48KBtu h Y Replace bridge rectifiers and then check whether the system can run normally Replace IPM board and then check whether the system can run normally Check whether the voltage range of P N on IPM module is normal DC277 N v Replace outdoor main board Yes Yes gt 15 solved 122 Troubleshooting 2 4 2 6 PO malfunction PO display Temperature protection of compressor top y Whether compressor Whether the connection is No No Reconnect and retest operates good Yes Yes Whether refrigerant circulation volume is normal 2 ROn b Replace the protector protector is normal resistance 0 Charge refrigerant Yes Y Replace the outdoor main PCB Whether abnormality is the same after gas charging NO v Check refrigerant system such as clogging of capillary etc 123 2 4 2 7 P1 malfunction Only for 36K 52K P1 display High pressure protection Judge 1 Whether the wiring between the high pressur
66. lizing the absorbent plastic film on water collector 1 6 Easy operation 1 7 Remote control and optional wired control method 34 Dimensions 2 Dimensions a Wall mounting installation A D Connecting point of refrigerant pipe E Connecting point of refrigerant pipe E Liquid side b Ceiling installation D Connecting point of refrigerant pipe D gas side Connecting point of refrigerant pipe E Liquid side Drain point weyGuy 8 35 3 Service Space gt 2 35mm gt 35mm 36 Wiring Diagrams 4 Wiring Diagrams KV24CM ARF21 T1 T2B 202044490396 Fu FUNCTION OF SWITCH 51 switch SOR CCM UNIT 6 WAY CONNECTOR 52 ADDRESS N20 0 of the 52 and ON OFF of the S1 mean the addresses of the different units Respectively WIRING DIAGRAMING wa Ooi or E TAPOWER S NET S ON hal 52 94 1 e MAIN CONTROL BOARD SWITCH POWER ON OFF 12 12 1 SWITCH 5 E D 2 SW1 SW3 5 2 5 4 E 8 BLACK WHITE ON OFF ON OFF E 10500 9 140004 RY 16000 di Apes Memory ves FOR TEMP COMPENSATION SW Bes XT E L T 12 12 12 12 Y G TO WIRE pem CONTROLLER
67. ll the pendant Drain side Foo 950 Panel P mu c co ae Unit mm Select the position of installation hooks according to the hook holes positions showed in upper picture 78 Indoor unit installation Drill four holes of 212 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings 3 1 4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it Adjust the hexangular nuts on the four installation hooks evenly to ensure the balance of the body Use a leveling instrument to make sure levelness of the main body is within 1 Adjust the position to ensure the gaps between the body and the four sides of ceiling are even The body s lower part should sink into the ceiling for 10 12 mm In general is half of the screw length of the installation hook Ceiling 7 Locate the air conditioner firmly by wrenching the nuts after having adjusted the body s position well 79 Indoor unit installation 3 1 5 Install the panel Remove the grille HL i Hf lj Wh HE Remove 4 corner covers Hook pane Le S SO JUN Water receiver AS LY Cross screwdriver 80 I
68. lowing sequence once pressing this button AUTO LOW HIGH 9 ON OFF For turning on or turning off the air conditioner 10 TIME ON For time ON setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjusting the figure to 0 00 will cancel time ON setting 138 Controller 11 SLEEP Press this button to go into the Energy Saving operation mode Press it again to cancel This function is only can be used on COOL HEAT and AUTO mode and maintain the most comfortable temperature for you 12 TIME OFF For time OFF setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjust the figure to 0 00 will cancel time OFF setting 13 LOCK inner located Push this button to lock in all the current settings and the remote controller will not accept any operation except that of the LOCK Use the LOCK mode when you want to prevent settings from being changed accidentally Press the LOCK button again to cancel the LOCK function A lock symbol will appear on the remote controller display when the lock function is activated 14 TURBO Push this button to activate cancel the Turbo function which enables the unit to reach the preset temperature in the shortest time On cooling mode the unit will blow stro
69. luid infusion apparatus to weight refrigerant to be recharged Be sure to avoid extra refrigerant charged it may cause liquid hammer of the compressor or protections Use supplementing flexible pipe to connect refrigerant cylinder pressure gauge and outdoor unit And The refrigerant should be charged in liquid state Before recharging The air in the flexible pipe and manifold gauge should be exhausted After finished refrigerant recharge process check whether there is refrigerant leakage at the connection joint part Using gas leakage detector or soap water to detect 99 Engineering of insulation 9 Engineering of insulation 9 1 Insulation of refrigerant pipe 9 1 1 Operational procedure of refrigerant pipe insulation Cut the suitable pipe insulation except joint section flare the pipe piping layout and connection vacuum drying insulate the joint parts 9 1 2 Purpose of refrigerant pipe insulation gt During operation temperature of gas pipe and liquid pipe shall be over heating or over cooling extremely Therefore it is necessary to carry out insulation otherwise it shall debase the performance of unit and burn compressor gt Gas pipe temperature is very low during cooling If insulation is not enough it shall form dew and cause leakage gt Temperature of gas pipe is very high generally 50 100 during heating Insulation work must carried out to prevent hurt by carelessness touching 9 1 3 Ins
70. mounting bolts on the unit m Screw nut 20 25m Washer Hanging screw bolt Put the side panels and grilles back D Connecting point of refrigerant pipe D gas side E Connecting point of refrigerant pipe side MY Drain point Downward declicity lower between 1 2 100 2 Wall mounted installation Hang the indoor unit by insert the tapping screws into the hanging arms on the main unit The bottom of body can touch with floor or suspended but the body must install vertically gt LAC IL Li LJ LI IL Jl m LL 1 LI ae LI aa an T LA 1 LI umi IL IL LI am L 87 Indoor unit installation 3 5 Floor standing indoor unit installation 3 5 1 Service space for indoor unit a A place which provides the spaces around the indoor unit as required above in the diagram b A place where is no obstacle near the inlet and outlet area c Aplace which can bear the weight of the indoor unit d Aplace which allows the air filter to be removed downward e Aplace where the reception range is not exposed to direct sunlight f In the center of the room where possible 3 5 1 1 Please stand the unit in hard and flat ground Please reserve space for installation and maintenance wall or obst
71. n the filter optional ng 840mm Be pw 1 Li z k a 4 ix z B a 4 3 840mm Old Cassette New Slim Cassette Reduction 36K 48K 840 300 840 840 245 840 18 1 2 Fresh air intake function gt Fresh air fulfills more healthy and comfortable air quality gt Ventilation motor is optional to increase the effect of fresh air 21 Features 7 New air intake 1 3 Optional ionizer generator gt lonizer generator is optional to get cleaner refreshing air to your room lonizer generator Ventilation motor connector connector lonizer can be switched on or off by remote controller When pressing the Clean Air button on the remote controller lonizer will work and the indicator light on display board will light 22 Features 1 4 External air duct design gt Reserve external air duct for more flexible air supply design 1 5 Built in drain pump gt Due to the improvement of structure is it more convenient to repair or replace the drain pump 2 4 P 1 Drain Pump gt With built in drain pump to make sure that condensed water will drain out reliably Max 750mm Ceiling 1 6 Terminals for alarm lamp and long distance on off controller connection are standard 23 Features gt Reserve terminals for the con
72. nal receiver 2 1 3 Icon explanation on indoor display board 3TR 4TR Ceiling amp floor MANUAL OPERATION TIMER DEF FAN ALARM Infrared signal receiver NOTE DEF indicator cooling and heating type or FAN indicator cooling only type 2 1 4 Display board of auto lifting panel of 4 way cassette Digital 88 Display Check Button Running LED Timer LED Defrost LED Alarm LED 110 Troubleshooting 2 1 5 Display board of Floor standing Unit Control Panel Room lemp Set Temp Set Timer display as 20 Y h dios os T AUXILIARY MODE FAM SPEED ADJUST Y FUNCTION indicators Swing operation display GL Auto operation display sleep operation display Cooling operation display ah Turbo operation display Dry operation display TIMERON timer operation display m timer operation display Heating operation display not applicable 6 Lock operation display Fan operation display BERE ran speed display 111 Troubleshooting 2 2 Indoor unit malfunction Running Timer Defrosting Alarm Display nixie Malfunction lamp lamp lamp lamp tube Communication malfunction between indoor and outdoor units NO 2 Open or short circuit of T1 temperature X sensor 3 Open or short circuit of T2 temperature 1 m m N m Open or short circuit of T2B temperature sensor m IT Full water malfunction EEPROM
73. ndoor unit installation Tighten the screws under the panel hooks till the panel closely stick on the ceiling to avoid condensate water D Loosen upper nut ES Gap not allowed j CD Q Adjust lower nut Leakage i e Water condensation oo Pollution 5 Hang air in grill to panel then connect lead terminator of the swing motor and that of the control box with corresponding terminators on the body respectively Install the 4 corner covers back Installation 5 rope 4 4 Screw 4 Slide the four sliders in the corresponding channel when installing the cover Note The panel shall be installed after the wiring connected 81 Indoor unit installation 3 Ceiling amp floor indoor unit installation 3 3 1 Service space for indoor unit 2 35mm 3 3 2 Bolt pitch 1 Ceiling installation Drain point KV24CM ARF21 505 907 200 2 Floor standing installation Indoor unit installation 3 3 3 Install the pendant bolt 1 Ceiling installation Select the position of installation hooks according to the hook holes positions showed in upper picture Drill four holes of 212 45 50mm deep at the selected positions on the ceiling Then embed the expansible hooks fittings 2 Floor standing installation Hook Tapping a z IL IL
74. nection of alarm lamp and long distance on off controller more human control interface 47 hi d 1 7 Standard touch screen wired controller gt gt gt Touch screen wired controller is standard with error code indication function Better man machine conversation interface Undated structure design 4 way wire layout design no raised part at backside more convenient to place the wires and install the device Remote controller is optional without auto lifting panel function 24 Dimensions 2 Dimensions Tubing side Drain side a m 2 S gt SS Unit mm Connecting point of mE m refrigerant pipe Connecting point of drain pipe Liquid side Connecting point of 5 refrigerant pipe E NANA Ceiling TK panel E oua 880mm Ceiling hole Ground 25 Service Space 3 Service Space _ gt 1000 _ gt 1000mm gt N 1000mm N i E l 1 26 Wiring Diagrams 4 Wiring Diagrams KV36CC ARF21B om Rr can se ae eco on ar oa ie a a a a ethaan ach WIRING DIAGRAM INDOOR UNIT
75. ng cooling air with super high fan speed On heating mode applicable to the unit adopts PTC only the PTC will bring fast heating operation 3 2 Wired Remote Controller 3 2 1 KJR 12B Name and functions of buttons on the wire controller oS oo oy O TIMER ON BUTTON TIMER OFF BUTTON 8 FOLLOW ME BUTTON ELECTRICAL HEATER BUTTON 6 A RESET BUTTON ADJUST BUTTON A 9 ADJUST BUTTON Y SWING BUTTON 1 ECONOMY BUTTON 2 FAN SPEED BUTTON 13 LOCK BUTTON 1 Mode button When press this button the operation mode change as the following sequence 139 10 11 12 13 Remark the heating mode is not applicable Timer on button Press this button timer on function is active Then every press the time increase 0 5 after 10h 1h increasement after each press If cancel this Function just set it to 0 0 Timer off button Press this button timer off function is active Then every press the time increase 0 5h after 10h 1h increasement after each press If cancel this function just set it to 0 0 Follow me button When under cool heat and auto mode press this button follow me function is active Press again this function is ineffective Electrical heater button If press this button in heat mode electrical heater function become ineffective Reset button hidden Use a 1mm stick to press in the little hole then the current setting is canceled The wir
76. nnect it tightly 2 tightly check ok or not No Yes C Trouble is solved 2 can work normally Check whether the bridge rectifiers are normal Use the multimeter to measure the resistance between each two terminals check whether there is the condition that value of No resistance is 0 Yes No eplace the main board Yes Y check whether the system Yes Replace the bridge rectifiers can work normally Check whether the 3300uF 400V electrolytic capacitor is normal No No eplace the compressor Replace this electrolytic check whether the system Yes gt Capacitor can work normally Y 130 2 4 2 14 7 malfunction P7 display High temperature protection of evaporator Whether compressor Troubleshooting Whether the operates ND Yes Check whether the heat exchanger is dirty the air outlet is blocked and the indoor fan is running normal No Y Clean the heat exchanger and the air outlet Check whether the indoor fan is running normal Check refrigerant system such as clogging of capillary etc connection is good Reconnect and retest Yes Check the esistance value of the sensor via Appendix 1 5 it normal No Replace the temperature
77. perating including the pump and LED remain alarming after 3 minutes 1 3 10 Point Check Function There is a check switch in outdoor PCB Press the switch SW1 to check the states of unit when the unit is running 107 Electrical Control Function Press the switch N times it will display the content corresponding to No N After getting into the check function it will display No N with 1 5s meanwhile the low bit decimal of digit display flashing indicated to get into the check function display After 1 5s it will display the content corresponding to No N the digital display tube will display the following when push SW1 each time N Display Remark Normal display Display running frequency running state or malfunction code Actual data HP 10 If capacity demand code is higher than 99 the digital display tube will show single digit and tens digit For example the Indoor unit capacity demand code digital display tube show 5 0 it means the capacity demand is 15 the digital display tube show 60 means the capacity demand is 6 0 Amendatory capacity demand code The frequency after the capacity requirement transfer The frequency after the frequency limit The frequency of sending to 341 If the temp is lower than O degree the digital display tube will Indoor unit evaporator temp T2 show O If the temp is higher than 70 degree the digital display tube will show 70 If the temp is lower than 9 degree
78. pressure protector socket check whether the system can run normally No Y Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient temperature is too low No Judge 4 The refrigerant of the system is leakage Method Connect the pressure gauge to the gauge joint of the system check whether the pressure 15 lower than 0 14MPa No Judge 5 The refrigerant pipe is blocked No No Connect it well Yes Replace low pressure protector Yes Stop the unit Yes Leak hunting Charge nitrogen or refrigerant to the system if the leakage is serious there will be distinct gas leakage sound if the leakage is slight use the suds mixture of water and abluent is also ok if it can make bubble or electronic leak detector Yes Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Troubleshooting 125 2 4 2 9 malfunction P3 display Current protection of compressor Judge 1 Check whether the input current of the power supply wire is more than 20A For 36K amp 48K with 1 phase it is 30A Yes Check whether the refrigerant
79. r shall run over the water collector b Continuously infusing water until water level alarmed check whether the drainage pump could discharge water at once If water level does not decline under warning water level 3 minutes later it shall cause shutdown of unit When this situation happens the normal startup only can be recovered by turning down power supply and eliminating accumulated water Note Drain plug at the main water containing plate is used for eliminating accumulated water in water containing plate when maintaining air conditioner fault During normal operation the plug should be inserted to prevent leakage 6 4 Insulation work of drainage pipe Refer the introduction to the insulation engineering parts 97 Vacuum Drying and Leakage Checking 7 Vacuum Drying and Leakage Checking 7 1 Purpose of vacuum drying gt Eliminating moisture in the system to prevent the phenomena of ice blockage and copper oxidation Ice blockage shall cause abnormal operation of system while copper oxide shall damage compressor gt Eliminating the non condensable gas air in system to prevent the components oxidizing pressure fluctuation and bad heat exchange during the operation of system 7 2 Selection of vacuum pump gt The ultimate vacuum degree of vacuum pump shall be 756 or above gt Precision of vacuum pump shall reach 0 02mmHg or above 7 3 Operation procedure for vacuum drying Due to different construction environmen
80. rising and the indoor fan is fixed at low speed When heating not applicable the setting temperature decreases 1 C be higher than 17 every one hour 2 hours the setting temperature stops rising and indoor fan is fixed at low speed Anti cold wind function has the priority 1 3 7 3 Operation time in sleep mode is 7 hours After 7 hours the AC quits this mode but doesn t turns off 1 3 7 4 Timer setting is available 1 3 8 Auto Restart function The indoor unit is equipped with auto restart function which is carried out through an auto restart module In case of a sudden power failure the module memorizes the setting conditions before the power failure The unit will resume the previous operation setting not including Swing function automatically after 3 minutes when power returns 1 3 9 Drain pump control Adopt the water level switch to control the action of drain pump Main action under different condition every 5 seconds the system will check the water level one time 1 When the A C operates with cooling including auto cooling dehumidifying and forced cooling mode the pump will start running immediately and continuously till stop cooling 2 Once the water level increase and up to the control point LED will alarm and the drain pump open and continue checking the water level If the water level fall down and LED disalarmed drain pump delay close 1 minute and operate with the last mode Otherwise the entire system stop o
81. ry gas vacuum damage could achieve the effect of vacuum drying but this method could not achieve drying thoroughly when there is too much moisture Therefore special attention shall be drawn to prevent the entering of water and the formation of condensate water 3 Vacuum drying again for half an hour If the pressure reached 755mmHg start to pressure leakage test If it cannot reached the value repeat vacuum damage and vacuum drying again for 1 hour 4 Leakage test After the vacuum degree reaches 55mmHg stop vacuum drying and keep the pressure for 1 hour If the indicator of vacuum gauge does not go up it is qualified If going up it indicates that there is moisture or leak source 98 Additional refrigerant charge Additional refrigerant charge After the vacuum drying process is carried out the additional refrigerant charge process need to be performed The outdoor unit is factory charged with refrigerant The additional refrigerant charge volume is decided by the diameter and length of the liquid pipe between indoor and outdoor unit Refer the following formula to calculate the charge volume Diameter of liquid pipe mm 06 35 9 52 V Additional refrigerant charge volume L The length of the liquid pipe m Note Refrigerant may only be charged after performed the vacuum drying process Always use gloves and glasses to protect your hands and eyes during the charge work Use electronic scale or f
82. sensor Yes hether the indoor PCB is normal NOCT Replace the indoor PCB 131 Appendix 1 Temperature Sensor Resistance Value Table kom c Kom Kom 2 622156 790 04756 __ rean 15068 oss 72 153668 m2 044690 692 7 ms 04302 ese 66855 14948 omoa 3s 75 ns omea sooo etos 76 9400 sr 1208 osor 56261 me oss 39 79 1216 36054 zone 5 34507 90 130 0270 0869 920 ss soos 8 0277 sa 29566 9 97673 1 92525 ss 28 ormo 8 9252 se 21363 7 4 136 92946 5 sr 929 13940 se 25913 138 9276 5 2467 9 19 022231 NINININ 1 Mh D gt amp Ph NIN NIO O N A N N
83. sulate the joint parts 9 2 2 Purpose of drainage pipe insulation The temperature of condensate drainage water is very low If insulation is not enough it shall form dew and cause leakage to damage the house decoration 100 gt gt gt Engineering of electrical wiring 9 2 3 Insulation material selection for drainage pipe The insulation material should be flame retardant material the flame retardancy of the material should be selected according to the local law Thickness of insulation layer is usually above 10mm Use specific glue to paste the seam of insulation material and then bind with adhesive tape The width of tape shall not be less than 5cm Make sure it is firm to avoid dew 9 2 4 Installation and highlights of insulation construction gt gt The single pipe should be insulated before connecting to another pipe the joint part should be insulated after the drainage test There should be no insulation gap between the insulation material 10 Engineering of electrical wiring 10 1 Highlights of electrical wiring installation All field wiring construction should be finished by qualified electrician Air conditioning equipment should be grounded according to the local electrical regulations Current leakage protection switch should be installed Do not connect the power wire to the terminal of signal wire When power wire is parallel with signal wire put wires to separ
84. t two kinds of vacuum drying ways could be chosen namely ordinary vacuum drying and special vacuum drying 7 3 1 Ordinary vacuum drying 1 When conducting first vacuum drying connect pressure gauge to the infusing mouth of gas pipe and liquid pipe and keep vacuum pump running for 1hour vacuum degree of vacuum pump shall be reached 55mmHg 2 Ifthe vacuum degree of vacuum pump could not reach 755 after 1 hour of drying it indicates that there is moisture or leakage in pipeline system and need to go on with drying for half an hour 3 If vacuum degree of vacuum pump still could not reach 55mmHg after 1 5 hours of drying check whether there is leakage source 4 Leakage test After the vacuum degree reaches 55mmHg stop vacuum drying and keep the pressure for 1 hour If the indicator of vacuum gauge does not go up it is qualified If going up it indicates that there is moisture or leak source 7 3 2 Special vacuum drying The special vacuum drying method shall be adopted when 1 Finding moisture during flushing refrigerant pipe 2 Conducting construction on rainy day because rain water might penetrated into pipeline 3 Construction period is long and rain water might penetrated into pipeline 4 Rain water might penetrate into pipeline during construction Procedures of special vacuum drying are as follows 1 Vacuum drying for 1 hour 2 Vacuum damage filling nitrogen to reach 0 5Kgf cm2 Because nitrogen is d
85. tdoor unit s power supply is separate 4 7 All indoor units have network control function 4 8 All indoor units have Auto restart function Indoor Units Part 2 Indoor Units Four way Cassette 7 Super Slim Cassette 20 Ceiling amp Floor deti ea pv su 33 3 Generation Ceiling amp Floor 45 Floor standing Type eee eese 53 Four way Cassette Four way Cassette T ype UN LA ee 8 2 11 Del 12 4 VIrIng Diagram 13 5 Capacity Tables __ _ ____ 14 6 Air Velocity Distributions Reference Data 15 7 Electric Characteristics 16 LGV GIS f EN 16 DPACC OSS 17 10 TNE OF POWOF Pe haberi ema paci 18 Ts TG NGI VIERING erp RR 19 Features 1 Features 1 Low operation noise Streamline plate ensures quietness Creates natural and comfortable environment 2 Efficient cooling Equal fast and wide range cooling 3 Excellent performance The optimal evaporator amp sufficient airflow volume guarantees
86. temp sensor T3 is Yes Connect the wiring well broken off No Y Check whether the resistance of condenser temp sensorT3 is wrong Yes Replace condenser temp sensor T3 refer to the Appendix 1 No Judge 2 Outdoor ambient temp sensor T4 is malfunction Check whether the wiring of the outdoor ambient temperature Yes Connect the wiring well sensor T4 is broken off No Check whether the resistance of outdoor ambient temperature vie Replace outdoor ambient sensor T4 is wrong refer to the temperature sensor T4 Appendix 1 No Judge 3 Compressor discharge temp sensor 5 is malfunction Check whether the wiring of the compressor discharge temperature Yes Connect the wiring well sensor T5 is broken off No Check whether the resistance of compressor discharge temp sensor Yes T5 is wrong refer to the Appendix 2 No Replace outdoor main PCB Replace compressor discharge temperature sensor T5 121 2 4 2 5 5 malfunction For single phase units E5 display protection Check voltage of outdoor unit power supply whether the voltage between L 1 and N is about 220 240VAC No Y Replace the power board then chec
87. the connections between temperature sensor and PCB Are the connections good No gt Correct the connections Yes v Check the resistance value of the sensor via Appendix 1 Yes Replace indoor or outdoor PCB Y Replace the sensor 115 2 4 1 2 Outdoor unit malfunction Outdoor unit malfunction Whether the outdoor main board has error display No Whether the outdoor unit is power on Yes Refer to corresponding solving steps Yes Check whether the communication wire between the indoor and outdoor unit is connected correctly gt v Replace outdoor main board Check if the errors happen again Yes Y Check whether the power is Connect the wiring well or replace the communication wire No Replace the indoor PCB v Trouble is solved 116 Troubleshooting 2 4 1 3 Indoor EEPROM malfunction Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes If the EEPROM chip is welded on PCB replace the PCB directly Otherwise No gt Insert the EEPROM well check whether the EEPROM chip plugged in PCB well Yes Replace the indoor PCB
88. the time will increase 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjusting the figure to 0 00 will cancel time ON setting 10 ECO Sleep mode Activate or turn off economic operation mode It is suggested to turn on this function when sleeping Only available when remote controller is used with corresponding unit 11 TIME OFF For time OFF setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjust the figure to 0 00 will cancel time OFF setting 12 C H inner located Press this button with a needle of 1mm to shift the mode between Cooling only and Cooling amp Heating according to the feature of the machine not applicable for this models 13 RESET inner located Press this button with a needle of 1mm to cancel the current setting and reset remote controller 135 3 1 2 RG51C E Remote Controller Specifications Reaching Distance 8m when using 3 0 voltage it can get 11m Environment Temperature Range 5 60 Introduction of Function Buttons on Remote Controller SET TEMPERATURE AUTO gt FAN COOL HIGH DRY MED HEAT LOW Adus 02 EEUU TAS 7 ONOFF ADJUST A _ _ Mode seting 3 gt 8 Fan speedse ting SWINGT E
89. u have following accessories 30 The Specification of Power 8 The Specification of Power Model KV36CC ARF21B KV48CC ARF21B Phase 1 phase 1 phase a and 220 230 60Hz 220 230V 60Hz INDOOR UNIT POWER POWER WIRING 3x10 3x1 0 CIRCUIT BREAKER FUSE A 15 10 15 10 Phase 1 phase 1 phase on and 990 230V 60H 220 230V 60H OUTDOOR UNIT POWER POWER WIRING min 3X4 0 3 4 0 FUSE A 4030 40 35 Indoor Outdoor Connecting Wiring 3x05 3x05 Weak Electric Signal mm Indoor Outdoor Connecting Wiring Strong Electric Signal mm 31 Field Wiring 9 Field Wiring KV36CC ARF21B Air Condition Link Circuit OUTDOOR UNIT KV48CC ARF21B OUTDOOR UNIT INDOOR UNIT Power supply Y 1 Phase 220 240v AY Use 3 core cable 3x2 5mm for the models which with Use 3 core cable 3x1 0mm 2 for the others 3 core shielded cable 3 0 5 Power supply 1 Phase 220 240V 18K 30K 3 core cable 3x2 5mm 36K 60K 3 core cable 3x4 0mm M Power supply N MA Y 1 Phase 220 240V A Use core cable 3x2 5mm LD for the models which with auxiliary electric heater PTC Use Score cable 3 1 0 2 for the others 3 core shielded cable 3 0 5mm Power supply 1 Phase 220 240V 18K 30K 3 core cable 3x2 5mm 36K 60K 3 core cable 3x4 0mm 202070390575 auxiliary electric heater PTC
90. ulation material selection for refrigerant pipe gt burning performance should over 120 C gt According to the local law to choose insulation materials gt thickness of insulation layer shall be above 10mm lf in hot or wet environment place the layer of insulation should be thicker accordingly 9 1 4 Installation highlights of insulation construction gt Gas pipe and liquid pipe shall be insulated separately if the gas pipe and liquid pipe were insulated together it will decrease the performance of air conditioner Liquid pipe Insulation meterial Gas pipe The insulation material at the joint pipe shall be 5 10cm longer than the gap of the insulation material The insulation material at the joint pipe shall be inserted into the gap of the insulation material The insulation material at the joint pipe shall be banded to the gas pipe and liquid pipe tightly The linking part should be applied with adhesive to paste together Be sure not to bind the insulation material over tightly it may extrude out the air in the material to cause bad insulation and cause easy aging of the material 9 2 Insulation of drainage pipe 9 2 1 Operational procedure of refrigerant pipe insulation Select the suitable pipe insulation except joint section piping layout and connection drainage test in
91. with plastic sprayed inner surface Foam case Plastic spraying surface 1 6 Eas y operation 1 7 Remote control and optional wired control method 46 Dimensions 2 Dimensions 2 233 Wiring connection port 2 40 Drain discharge port 2120 Fresh air intake Hanging arm al dc fag Capacity eum 8 6 9 36K 1285 675 235 1200 48K 1650 675 235 1565 47 3 Service Space gt 35mm gt 1000 48 4 Wiring Diagrams KV36CM ARF21B KV48CM ARF21B I Duct Ceiling Type mum BLACK P2 1 POWER SETTING o 07 61 3 23 S3 a 3 23 8 4 5 NI re Setting According to related model 1 7 CN23 1 CN33 2

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