ksim series outdoor multizone service manual
Contents
1. DUE DUE ur ar AE AE AF Care 204 B LORE ctr 1 CT ELOY bI Ar mE TS eL AE LI AE mE OPTIONAL gt 202057190160 5 Refrigeration Cycle Diagram 8 1 Refrigeration circuit drawing of inverter binary type Axial flow fan EXVA Filter A Liquid valve Exhaust Main temp sensor Capillary Capillary A EXVB Check Filter B Coil temp Valve flow fan Evaporator 4 way sensor Capillary B valve C ross Indoor pipe out temp sensor pes valve A gt lt Compressor Indoor pipe out temp sensor B valve Indoor Unit Outdoor Unit 5 2 Refrigeration circuit drawing of inverter trinary type Axial flow fan Capillary XV A Liquid valve A NN AE Auxiliary Capilla Exhaus2. 7 Electronic control function 7 1 Abbreviation T1 Indoor ambient temperature T2 Coil temperature of indoor heat exchanger middle T2B Coil temperature of indoor heat exchanger outlet T3 Coil temperature of outdoor heat exchanger T4 Outdoor ambient temperature T5 Compressor discharge temperature Ts Setting temp 7 2 Electric control working environment 7 2 1 Input voltage 230V 7 2 2 Input power frequency 60Hz 7 2 3 Indoor fan normal working amp is less than 7 2 4 Outdoor fan Normal working amp is less than 1 5 7 2 5 Four way valve normal working amp is less than 7 2 6 Swing motor DC12V 7 3 Outdoor unit s digital display tube There is a digital display tube in outdoor PCB Digital display tube display function In standby the LED displays In compressor operation the LED display the running frequency In defrosting mode The LED displays dF or alternative displays between running frequency and dF each displays 2s In compressor pre heating The LED displays In protection or malfunction the LED displays error code or protection code 7 4 Outdoor unit point check function There is a check switch in outdoor PCB Push the switch SW1 to check the states of unit when the unit is running The digital display tube will display the follow procedure when push SW1 each time omne Coins Peng Low speed 1 speed 2
3. el rt ___ __ 6 6 _ _ _ _6 _ LI uua nn ___ _______ 330031 1 ela El _ ______ X Umm wi ET a 1 E E ___ Ef _ __ _____________ 021 O A 1 7 Oije llL hxp Co LL nn Y U NE rr nn OR SE ____ _ NE ___ _ __ ___ ___ _ _ ur a ___ 1 s HicccwX 4c A 7 0 0 nn LaL LJ 4 Wiring Diagram 4 1 KSIM20912 H216 ELECTRONIC EXPANSIVE VALVE ELECTRONIC EXPANSIVE VALVE B COMPRESSOR VALVE A VALVE B WIA DISCHARGE SENSOR M AB INDOOR PIPE OUT TEMP RECTIFILER2 RECTIFILERI R1325 RED 1502 4 2 KSIM30912 H216 ELECTRONIC EXPANS IVE VALVE A ELECTRONIC EXPANSIVE VALVE B COMPRESSOR 4 LCN26 VALVE mu tons 5 BR mann pes E 6 L1 S Is Ee um RED
4. If the current frequency is lower than COOL F4 the frequency will not be limited After 10s of the compressor start if the current ICOOL the will display the failure for 30 seconds and stop The AC will restart minutes later Heating mode Current frequency Hz Current limit value A Frequency limit HEAT F12 IHEATLMT8 Decrease the frequency to HEAT F4 and run at HEAT F4 for 3 minutes HEAT F11 IHEATLMT 7 HEAT F10 IHEATLMT6 After that the frequency will be adjusted according to the HEAT F9 5 capacity demand and rise to the upper level every 3 minutes HEAT F8 IHEATLMT4 HEAT F7 IHEATLMT3 When the frequency gt Heat F4 via capacity demand HEAT F6 IHEATLMT2 HEAT F5 1 If the current frequency is lower than HEAT the frequency will not be limited After 10s of the compressor start if the current gt IHEAT the AC will display the failure for 30 seconds and stop The AC will restart minutes later 7 5 5 Indoor outdoor units communication protection If the indoor units can not receive the feedback signal from the outdoor units for 2 minutes the AC will stop and display the failure 7 5 6 High condenser coil temp protection When 3 gt 65 for 3 seconds the compressor will stop while the indoor fan and outdoor fan will continue When T3 lt 52 protection will release and the compressor will restart after 3 minutes 7 5 7 Outdoor unit anti freezing protectio
5. PM CN31 HI RED RED gt Qo EEDE SLI 2 APPA cn YELLOW zu di Yo FAN CAPACITOR Y G OPTIONAL HEATER ELECTRONIC EXPANSIVE YELLOW BLACK RED CN25 VALVE B UP 9 RED DISCHARGE SENSOR BLUE BLACK iP 5850 BOR ag ste 8 0 3 lt O BLUE RECT IFI RED RECTIFILERZ SE t pee NGE RE 1815 RED R1325 RED VALVE C WAIN BOARD YELLOW 4 NAYS VALVE BLACK law L1 L2 Li ERP KD lt 4 e SN aN POKER 5 amp SUPPLY 5 Y G 25 WHITE R2503 OPT IONAL HEATER 4 3 KSIM40912 H216 EISER TEE ETC EEE SCEE ECFIN SECRET ETR pir REGT IF ILER2 BLUE m p WMLVE A VELG VALVE LAIN BORD ELECTRONIC ELEC RONIG ELECTRONIG ELECTRONIG NE IME 0 FAN CAPACITOR Eu CT EL i 2 4 D d 0 L7 AE aw a uar
6. Replace the outdoor power board outdoor units communication protection 15 the LED in outdoor main PCB light Check the signal wires between outdoor PCBs is it connected good 1 15 the 5 voltage in outdoor main board Power Board CN4 Red wire and yellow GND Outdoor main PCB CZ1 2 15 3 3v voltage in outdoor main board Power Board CN1 Purple wire and yellow GND Inverter module defective Rectifier circuit is bad connection or defective when the voltage in outdoor is abnormal D and 310V DC Check the IC6 IC7 at Outdoor power PCB Normally Input voltage 5V changeable Output voltage 5V changeable Outdoor power PCB is defective Compressor top protection against temperature Off 105c 90 The trouble shooting is same with the one of indoor unit P2 protection Outdoor unit display LED STATUS es Compressor current protection Check the resistance of compressor normally U and 1 ohm U and Wis 1 ohm V and 15 The compressor is defective Turn one indoor unit only Does the compressor start after No 3 minutes Yes The compressor is defective Does the trouble occur again after compressor running some time Yes Check the refrigerant circulation volume and pressure If refrigerant circulation volume and pressure is OK change the outdoor main PCB Outdoor unit display LED STATUS PA Compressor drive malfunction
7. drive protection arose Are the U V W connected to compressor and inverter module right Yes Repair connector Replace the outdoor power board If the problem comes to again check wingding resistance of inverter compressor is it 1 ohm inverter compressor P4 LED flashes for nine times Compressor drive malfunction module protection arose Are the U V W connected to compressor and inverter module Yes No Replace the module to see if it is normal Replace the outdoor power board If the problem comes to again check wingding resistance of inverter compressor is it right inverter compressor Condenser high temperature protection When outdoor pipe temp is more than 65 C the unit will stop and unit runs again when outdoor pipe temp less than 52 C Is the outdoor pipe temp more than 65 C 15 the outdoor pipe temp sensor right according to the annex 1 Yes No Replace the outdoor main board Replace the outdoor pipe temp sensor Outdoor unit display LED STATUS Check the voltage of power supply if the voltage is about 220V turn off the power supply and turn it on again after 1 minute Does the unit work normally No Check whether the power supply of bridge rectifiers input port is normal No Replace the outdoor PCB No Replace bridge rectifiers Yes Check whether No Replace PFC Yes Check whe
8. 0 24V 2 Check the Diode Bridge component In wiring diagram rectifier Remark If this part is abnormal the LED will not light Forward Resistance Backward Resistance 14 ___ Phone 1 305 593 8358 1 305 593 8212 e mail sales klimaire com www klimaire com
9. if some components blow out or be failure YES Is it breakdown between P N P W N V N W or V W of inverter moduler YES NO NO YES YES Revise the power and retest Revise the power and retest Repair or replace the modular Replace the modular Check the compressor Indoor unit display LED STATUS Is the power supply good YES Be sure the power supply is normal when using the units Replace the outdoor e box Indoor unit display LED STATUS Compressor top protection against temperature Does compressor operate YES Is the connection n good econnect and retest YES 15 protector E normal eplace the protector YES NO Check the outdoor main PCB Is there Charge refrigerant some problem Is abnormality Replace the outdoor PCB the same after gas charging Is refrigerant circulation volume normal Check refrigerant system such as clogging of capillary Indoor unit display LED STATUS The trouble shooting is same with one of outdoor unit P3 protection 8 3 2 Outdoor unit trouble shooting Outdoor unit display LED STATUS Circuit or software error on indoor Replace indoor Outdoor unit display LED STATUS No 1 Indoor units pipe temp sensor or connector of pipe temp sensor is E1 defective Is connection to connector of pipe temp sensor good Yes Check the resistance of the temp sensor according t
10. KLiMAiRE SERVICE MANUAL KLIMAIRE AIRCONDITIONER KSIM DC INVERTER MULTI TYPE KSIM20912 H216 KSIM30912 H216 KSIM40912 H216 DC MULTI OUTDOOR UNITS N ND CONTENTS General information of Outdoor 3 ELTE ttm 4 DIMENSIONS 5 WV 6 Refrigeration Cycle Diagram eee eere eere eene nnne nnn 8 UNITS ua nn ne datent 9 Electronic Control fURGUOM 10 IFOUDIESMOOUMNG cm 15 1 General information of Outdoor Units i i N ight Model name Compressor mm kg KSIM20912 H216 845x320x700 53 5 57 DA130S1C 20FZ KSIM30912 H216 845x320x700 57 60 5 DA150S1C 20FZ KSIM40912 H216 990 345 965 86 90 TNB306FPGMC L 2 Features Outdoor unit Power relay control Low noise air flow system Hydrophilic aluminum fin The hydrophilic fin can improve the heating efficiency at operation mode 4 way valve control It is only operated in the heating operation mode except defrosting operation Anti rust cabinet Valve protection cover protects the valves and prevents water from dripping Discharge pipe temperature protection Compressor crankcase heater 3 Dimensions a KSIM20912 H216 KSIM30912 H216 il
11. a oere E Inverter current Actual data EXV open angle for 14 indoor unit Actual data divide 8 open angle for 2 indoor unit Actual data divide 8 open angle for 3 indoor unit Actual data divide 8 open angle for 4 indoor unit Actual data divide 8 Power supply of outdoor unit AD data Indoor unit number The indoor unit can communicate with outdoor unit well 00 means no malfunction ee pales aes ACR Aea O The following items from 6 4 1 to 6 4 6 for the explanation of the point check functions 7 4 1 Frequency of compressor Display Frequency of compressor Hz 7 4 2 Running mode ow 7 4 3 Capacity demand Cooling mode Capacity 2000 2 2000 2 3000 3 4500 5 5000 5 5500 6 6100 7 7000 7 7500 8 gt 7500 500 500 800 000 500 100 000 500 000 Correspondi 1 2 3 4 5 7 gt 10 ng Code Heating mode Capacity 2000 2 2000 2 3000 3 4500 5 5500 6 6100 7 6100 7 7000 7 7500 8 gt 8000 500 500 800 000 100 000 000 500 000 Correspondin 1 2 3 4 5 7 9 10 gt 11 g Code Note The capacity is just for reference 7 4 4Number of indoor unit T Number of indoor unit 1 4 5 Outdoor ambient temp Display Corresponding temp Display Display csr a wu ERIS EC ss m ms 7 4 6 Opening degree of electronic expansion valve Actual ope
12. l Check the wiring on outdoor PCB comparing with wiring plate Is the connection good No Correct the connection Indoor unit display LED STATUS Yes Replace outdoor e box Is power supply and connection of connectors good Be sure the power supply is good and correct the connection YES Indoor is defective the indoor PCB Indoor unit display LED STATUS 15 the indoor fan motor connector and connection good Repair the connector and reconnect 15 voltage being applied to the fan motor Indoor PCB is defective rang 90v 160v between Replace the indoor PCB mid pin and N on CN1 Replace the indoor fan motor Indoor unit display LED STATUS Outdoor units temp sensor or connector of temp sensor is defective Is the outdoor temperature sensor connector and connection good Repair the connector and reconnect Replace the sensor and check if E5 display again Indoor unit display LED STATUS Replace outdoor e box Indoor units temp sensor or connector of temp sensor is defective Is the indoor temperature and evaporator sensor connector and connection good Replace the sensor and check if E6 display again Indoor unit display Repair the connector and reconnect Replace the indoor PCB LED STATUS 15 voltage normal YES YES right YES Check the modular
13. n When 2 lt 0 for 250 seconds the indoor unit capacity demand will be zero and resume to normal when T2B gt 10 7 5 8 Oil return Running rules 1 compressor frequency keeps lower than RECOILINFRE for 2hours the AC will rise the frequency to RECOILFRE for 3mins and then resume to former frequency RECOILINFRE KSIM30912 H216 KSIM40912 H216 2 During the oil return process the EXV and indoor units keep the current running mode the frequency will not be limited by the compressor discharge temp and the current 7 5 9 Compressor preheating functions Preheating permitting condition If T4 outdoor ambient temperature lt 3 newly powered on or if T4 lt 3 compressor has stopped for over 3 hours the compressor heating cable will work Preheating mode A weak current flow through the coil of compressor from the wiring terminal of compressor then the compressor is heated without operation Preheating release condition 4 gt 5 compressor starts running preheating function will stop 7 5 10 Compressor crankcase heater When T4 3 and the compressor is not running the crankcase heater will be active When 4z5 orthe compressor starts up the crankcase heater will stop work 8 Troubleshooting 8 1 Indoor unit error code explanation Vertu series outdoor units temp sensor or connector ftemp sensor ete _ ee indoor unts temp sensor or co
14. ning degree equals the display data divided 8 7 5 Protection 7 5 1 Three minutes delay at restart for compressor 7 5 2 Temperature protection of compressor discharge When the compressor discharge temp is getting higher the running frequency will be limited as below rules f 102 T5 115 decrease frequency to the lower level every 2 minutes till to F1 T5 gt 115 for 10 seconds the compressor will stop and restart till T5 lt 90 7 5 3 Low voltage protection VOLTAGE No limit VOLREL1 VOLLIMT1 VOLFRE1 VOLLIMT2 Pd VOLFRE2 ue VOLRELS VOLLIMT3 Off VOLLIMTi VOLLIMT2 VOLLIMT3 VOLREL1 VOLREL2 VOLREL3 VOLFRE1 VOLFRE2 KSIM20912 H216 Note if the low voltage protection occurs and not resumes within 3min it will keep the protection always after restart the machine 7 5 4 Compressor current limit protection If the compressor current exceeds the current limit value for 10 seconds the compressor frequency will be limited as below table Cooling mode Current frequency Hz Current limit value A Frequency limit COOL F10 ICOOLLMT6 Decrease the frequecny to COOL F4 and run at COOL F9 ICOOLLMT5 COOL F4 for 3 minutes COOL F8 ICOOLLMT4 After that the frequency will be adjusted according to the COOL F7 ICOOLLMT3 Capacity demand and rise to the upper level every 3 COOL_F6 ICOOLLMT2 nue When the frequency gt COOL F4 via capacity demand COOL_F5 ICOOLLMT1
15. nnector attemp sorde _ is mad pot 9A series E MALFUNCTION DEF TIMER AUTO a EEPROM error Indoor outdoor units communication protection ENEN EN ii indoor fan speed out of contra jo X EC 8 e 8 x B 6 indoor units emp sensor or connector o tmp sensor is defective _ overvotage or oo inder vonage weno 9 m _ Tener ofeompressorton o X x e Lm ojee meem 8 2 Outdoor unit error code explanation pe 8 3 Trouble shooting 8 3 1 Indoor unit trouble shooting Indoor unit display LED STATUS Circuit or software error on indoor PCB Replace indoor PCB Indoor unit display LED STATUS Disconnect the power supply after 1 minute connect the power supply turn on the unit with remote controller Does the unit work normally NO Check the wiring between indoor and outdoor unit Is the connection of L 5 and GND good 15 the GND connection on outdoor PCB 9004 NO gt Reconnect and retest again Yes Is the LED4 red on outdoor PCB bright and LED1 yellow blinking Replace indoor PCB and repower on 15 the failure cleared The power supply for outdoor PCB is fai
16. o Annex 1 No Replace the sensor Outdoor unit display LED STATUS No 2 Indoor units pipe temp sensor or connector of pipe temp sensor is defective Is connection to connector of pipe temp sensor good Yes Check the resistance of the temp sensor according to Annex 1 No Replace the sensor Outdoor unit display LED STATUS No 3 Indoor units pipe temp sensor or connector of pipe temp sensor is defective Is connection to connector of pipe temp sensor good Yes Check the resistance of the temp sensor according to Annex 1 Replace the sensor No No 4 Indoor units pipe temp sensor or connector of pipe temp sensor is defective Is connection to connector of pipe temp sensor good Yes No Repair connector Check the resistance of the temp sensor according to Annex 1 Replace the sensor Outdoor unit display LED STATUS Outdoor units temp sensor or connector of temp sensor is defective Is connection to connector of pipe temp sensor good Yes No Repair connector Check the resistance of the temp sensor according to Annex 1 Replace the sensor Outdoor unit display LED STATUS Check voltage of power supply if the voltage is about 220V turn off the power supply to indoor unit and turn it on again after 1 minute Does the trouble occur again Yes Check the voltage of secondary of T3 transformer in outdoor power board is this voltage 12 14V AC No
17. t Main ove Filter A temp sensor Capillary Capillary B XV B Liquid valve B Check Filter B Condenser Coil temp Valve Capillary C XVC Liquid valve C flow fan Evaporator duy sensor Value Filter C Cross Indoor pipe out temp sensor A as valve A Indoor pipe out Compressor temp sensor B Gas valve B Indoor pipe out temp sensor C Gas valve Outdoor Unit 8 3 Refrigeration circuit drawing of inverter quadplex type een Axial flow fan Exhaust temp sensor He Check Condenser Coiltemp valve Sensor Auxiliar y PR Main Capilla Compressor Po Outdoor Unit Indoor Unit CapilaryA lem valve A __ c Filter A Capillary B LEXY Liquid valve i Filter E Capillary C Liquid valve e Filter C Capillary D Liquid valve D Sh bl 5 Filter D sa m a LLI 2 Indoor pipe temp sensor Gas valve bl Indoor pipe temp sensor B Gas valve Indoor pipe 3 7 temp sensor as valve bl Indoor pipe temp sensor D valve EX Indoor Unit 6 Indoor units combination 6 1 Indoor unit combination for KSIM20912 H216 9 99941 12 6 2 Indoor unit combination for KSIM30912 H216 6 3 Indoor unit combination for KSIM40912 H216 9 9 12 9494949 9 9 9 12 9 9 12 12 12 122 _
18. ther the power supply of bridge rectifiers output port is 325VDC the PFC inductance Is normal Yes Replace the inductance Check whether the voltage between P and N port in IPM is 380V Check whether the wiring between PCB and PFC module is normal Replace outdoor e box 1 Characteristic of temp sensor wc remt remt sm w me e ww w mms e wm wxe m www sem s ex m vem e sme _ ame _ ETIN 35 2024 9 1245 2 959 ame me 2 sss _ 9 ee mee a ven s sr _ s mem 2 s me e sea 5 em m sr _ or we ess a 225 _ zee s aw 9 mm __ eme e _ o omne sme amp _ mew sex c _ x Rs wm 0 572 _ Cu lw a KE ee s eme e ms c vos _ 6 sees e ms _ 2 1 Reference voltage data a Rectifier Input 220 230V AC output 310V DC b Inverter module W E OV Photo couple PC817 PC851 Control side lt 5V AC side lt 24 d S terminal and changeable from
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