Split DC Inverter Air Conditioner SERIES SERVICE MANUAL Model Numbers: KSIQ012-H118-I, KSIQ018-H216-I, KSIQ024-H216-I, KSIQ036-H216-I Table of Contents Precaution Part Names And Functions Dimension Refrigerant Cycle Diagram Wiring Diagram Installation Details Operation Characteristics Electronic Function Troubleshooting 10. Disassembly Instructions WARNING ...
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CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution .......................... 1 1.2 Warning ............................1 2. Part Names And Functions ......................... 4 2.1 Model Names of Indoor/Outdoor units ..................4 2.2 Indoor/Outdoor units ........................5 3. Dimension ..............................6 3.1 Indoor Unit ............................. 6 3.2 Outdoor Unit ..........................
careful of the case edges and the fins on the 1. Precaution condenser and evaporator. For installation, always contact the 1.1 Safety Precaution dealer or an authorized service center. To prevent injury to the user or other Do not install the product on a ...
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Stop operation and close the window It can avoid vibration of water leakage. in storm or hurricane. If possible, remove Do not install the product where the the product from the window before the noise or hot air from the outdoor unit could hurricane arrives.
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cleaning or maintaining the product. Be careful and avoid personal injury. Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries. There is risk of fire or explosion. Do not recharge or disassemble the ...
2. Part Names And Functions 2.1 Model Names of Indoor/Outdoor units Outdoor units Series Capacity Indoor units KSIQ012-H118-I KSIQ012-H118-O KSIQ018-H216-I KSIQ018-H216-O Inverter KSIQ024-H216-I KSIQ024-H216-O KSIQ036-H216-I KSIQ036-H216-O...
3.2 Outdoor Unit More than 30cm(11.8in) More than 60cm(23.6in) (Service space) More than 30cm(11.8in) More than 60cm(23.6in) More than 70cm(27.6in) Note: The above drawing is only for reference. The appearance of your units may be different. Model 770(mm) 300(mm) 555(mm) 840(mm) 487(mm) 298(mm)
5. Wiring Diagram 6.3 Adding the refrigerant after running the system for many years (Pls refer the wiring diagram on the unit) 6 Installation Details 6.1 Wrench torque sheet for installation Coupling size Pound-force Newton Kilogram-force (last 2 part foot(1bf-ft) meter(N-m) meter(kgf-m) numbers)
1. Collecting the refrigerant into the outdoor unit Procedure 1). Confirm that both the 2-way and 3-way 1) Completely tighten the flare nuts of the indoor valves are set to the opened position and outdoor units, confirm that both the 2-way Remove the valve stem caps and confirm that and 3-way valves are set to the closed position.
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1. Evacuation for the whole system 2). Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (be careful of the liquid refrigerant).
7. Operation Characteristics Temperature Cooling operation Heating operation Drying operation Mode 17℃~32℃ 0℃~30℃ 10℃~32℃ Room temperature (62℉~90℉) (32℉~86℉) (50℉~90℉) ° C ° C ~50 °F °F ~122 ° C ° C ° C ° C Outdoor temperature ~30 ~50 ° C °...
8. Electronic Function Dispalys ‘ ’ during self clean operation (if aplicable). 8.1 Abbreviation Dispalys ‘ ’ under 8℃ heating operation (if T1: Indoor room temperature T2: Coil temperature of evaporator aplicable). T3: Coil temperature of condenser When ECO function(optional) is actived,the T4: Outdoor ambient temperature “...
8.3 Main Protection 8.3.9 Refrigerant leakage detection This function is only active in cooling mode. It 8.3.1 Three minutes delay at restart for can better prevent the compressor being compressor damaged by refrigerant leakage or compressor 1 minute delay for the 1 time stand-up and 3 overload.
The outdoor unit will be run at different fan M+(M+=M+Z) speed according to T4. M(M=M) For different outdoor units, the fan speeds are M-(M-=M-Z) different. L+(L+=L+D) L(L=L) For KSIQ012-H118-I model, L-(L-=L-D) The fan speed is controlled by T4 and The auto fan acts as below rules: compressor frequency.
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When the current is more than setting value, the current protection function will be activated 8.4.2.4 Condenser temperature and the compressor will stop. protection For KSIQ012-H118-I model, 8.4.3.2 Outdoor fan running rules The outdoor unit will be run at different fan speed according to T4.
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8.4.3.5 Evaporator coil temperature protection TEstop Decrease 8.4.3.4 Defrosting mode TEdown For KSIQ012-H118-I model, Hold AC will enter the defrosting mode according to TEH2 Resume the value of temp. of T3 and the value of temp. of T4 and also the compressor running time.
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time, and then turn off automatically when ΔT=T1-Ts Running mode reaching the setting “off” time. ΔT>2℃ Cooling 8.4.7.5 Timer off/on. The machine will turn off automatically when reaching the setting “off” -2≤ΔT≤2℃ Fan-only time, and then turn on automatically when reaching the setting “on”...
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minutes and turn to auto mode as 24℃ setting temp. 8.4.14 Follow me (optional) If AC is off before power off and AC is required If the indoor PCB receives the signal which to start up now, the compressor will have 1 results from pressing the FOLLOW ME button minute delay when power on.
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8.4.16 Point check function Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two seconds.
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Enquiry Display value Meaning Remark information T1,T2,T3,T4, -1F,-1E,-1d,-1c,- -25,-24,-23,-22,-21,-2 1. All the displaying temperature is actual T2B,TP,TH, 1b,-1A value. Targeted 2. All the temperature is °C no matter what -19—99 -19—99 Frequency, kind of remote controller is used. A0,A1,…A9 100,101,…109 Actual 3.
9. Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.
9.1 Indoor Unit Error Display Operation Timer lamp Display LED STATUS lamp ☆ 1 time Indoor unit EEPROM parameter error ☆ 2 times Indoor / outdoor units communication error ☆ 3 times Zero-crossing signal detection error Indoor fan speed has been out of control ☆...
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Trouble shooting: Use the remote controller. If the unit does not respond to the remote, the indoor PCB needs to be replaced; if the unit does respond, then the display board needs to be replaced.
9.2 Outdoor unit error display(TBD) For KSIQ012-H118-O, connect to PFC Capacitor when is on, 100-130V AC output connect to reactor when is on, 100-130V AC output US-KFR-35W/BP3N1-(115V+RX62T+41560).D.13.WP2-1 CN4_1CN4_2 CN4_3CN4_4 connect to Ground bridge connect to N-line REACTOR DSA1 (100-130VAC INPUT) connect to L-line (100-130VAC INPUT) CN16...
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For KSIQ018-H216-O, KSIQ024-H216-O, 290-330VDC standby connect to the DR module 210-300VDC running bridge connect to reactance connect to earth fuse 250V 30A [V1.8] 2015-01-16 CN22 R141 CN6-1 PTC1 DSA1 R154 N-IN R155 R153 power supply 208-230V AC connect to the terminal L-IN FUSE1 65T 250V30A...
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For KSIQ036-H216-O, Connect to the Indoor evap.pipe out temp. sensor T2B-A、T2B-B、T2B-C、T2B-D、T2B-E external drive DC fan 6 5 4 3 2 1 motor connector Electric Expansion Electric Expansion Electric Expansion Electric Expansion Electric Expansion testPort external drive DC fan external drive DC fan Value C Value E communication...
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IPM board, connect to DC fan motor TO MAIN 0VAC (standby) CN19 CN55 10-200VAC (running) EU-KFR105W/BP2T3N1-350(767).D.13.MP2-1 202302141237 IPM2 CN57 Debug connect to the compressor 0VAC (standby) 10-200VAC (running) CAPACITOR Voltage IPM1 290-330VDC (standby) 210-300VDC (Running) C N 54 L -I N2 EARTH PFC-L1 [ 1.
9.3 Diagnosis and Solution 9.3.1 EEPROM parameter error diagnosis and solution(E0/F4) E0/F4 Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes Installation mistake ● PCB faulty ● Trouble shooting: Power off, then restart the unit 2 minutes later.
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9.3.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions 110 seconds and this condition happens four times continuously. Supposed causes Wiring mistake ● Indoor or outdoor PCB faulty ●...
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Remark: Use a multimeter to test the DC voltage between 2 port and 3 port of outdoor unit. The red pin of multimeter connects with 2 port while the black pin is for 3 port. When AC is normal running, the voltage will move alternately between -25V to 25V.
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9.3.3 Zero crossing detection error diagnosis and solution (E2) Error Code Malfunction decision When PCB does not receive zero crossing signal feedback for 4 conditions minutes or the zero crossing signal time interval is abnormal. Supposed causes Connection mistake ● PCB faulty ●...
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9.3.4 Fan speed has been out of control diagnosis and solution(E3) E3/F5 Error Code Malfunction decision When indoor fan speed keeps too low (300RPM) for certain time, conditions the unit will stop and the LED will display the failure. Supposed causes Wiring mistake ●...
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Index 1: 1:Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced.
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9.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5) E4/E5/F1/F2/F3 Error Code Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. Supposed causes Wiring mistake ●...
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9.3.6 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 5 minutes after the compressor starts up, if T2 ° C ( °F) Tcool-35.6 does not keep continuous 4...
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9.3.6 Overload current protection diagnosis and solution(F0) Error Code Malfunction decision An abnormal current rise is detected by checking the specified conditions current detection circuit. Supposed causes Power supply problems. ● System blockage ● PCB faulty ● Wiring mistake ● Compressor malfunction ●...
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9.3.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0) Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip conditions is abnormal, the display LED will show “P0” and AC will turn off. Supposed causes Wiring mistake ●...
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For example: Note: The photos below are only for reference, it’s may be not same totally with the ones on your side.
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For 30K~36K: At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise, please follow the procedure below: Check whether the power voltage Restart the unit when the power supply Check whether the power voltage...
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9.3.8 Over voltage or too low voltage protection diagnosis and solution(P1) Error Code Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Supposed causes Power supply problems. ● System leakage or block ●...
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9.3.9 High temperature protection of compressor top diagnosis and solution(P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Supposed causes Installation mistake ● Power supply problems. ● System leakage or block ●...
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9.3.10 Inverter compressor drive error diagnosis and solution(P4) Error Code Malfunction decision An abnormal inverter compressor drive is detected by a special conditions detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. Supposed causes Wiring mistake ●...
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IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red (-)Black...
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For 30K~36K: At first test the resistance between every two ports of U, V, W of IPM and P, N. If any result of them is 0 or close to 0, the IPM is defective. Otherwise, please follow the procedure below: Check whether the power voltage Restart the unit when the power supply Check whether the power voltage...
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9.3.11 Low pressure protection diagnosis and solution(P6) Error Code Malfunction decision When the pressure of system reach a certain value, the low conditions pressure protector will switch off. After the pressure resume to normal ,the protection code will disappear. Supposed causes Wiring mistake ●...
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Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(TP) sensor. Measure the resistance value of each winding by using the multi-meter.
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Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (° C --K) ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249...
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Appendix 2 Temperature Sensor Resistance Value Table for TP (°C --K) ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm ° C ° F K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595...
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Appendix 3: 9ΔT(℃) ΔT(℉) = ° C ° F ° C ° F ° C ° F ° C ° F ° C ° F 69.8 123.8 179.6 235.4 24.8 71.6 125.6 181.4 237.2 26.6 73.4 127.4 183.2 28.4 75.2 129.2 240.8 30.2...
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Appendix 4 Normal voltage of P and N 208-240V(1-phase,3-phase) 380-420V(3-phase) In standby 310VDC around 530VDC around In operation With passive PFC With partial active With fully active module PFC module PFC module >200VDC >310VDC >370VDC >450VDC...
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2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASN98D22UFZ ASM135D23UFZ ATF235D22UMT ATF250D22UMT Blue - Red 1.75 Ω 0.75 Ω 0.75 Ω 1.57Ω Blue - Black Red - Blue...
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3. IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red...
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5: Pressure On Service Port Cooling chart: °F ° C (23.89) (29.44) (35) (40.56) (46.11) 70/59 10.1 75/63 10.7 80/67 11.2 °F ° C (23.89) (29.44) (35) (40.56) (46.11) 70/59 75/63 80/67 °F ° C (23.89) (29.44) (35) (40.56) (46.11) 70/59 0.82 0.78...
10 Disassembly Instructions Note: This part is for reference, the photos may have slight difference with your machine. 10.1 Indoor unit Parts name Procedures Remarks Front panel How to remove the front panel. 1) Pull the below side of the panel toward you and remove screw of the cover.
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Electrical How to remove the electrical parts parts. ② 1) Remove the front panel from procedure 1. 2) Pull out the room temp. sensor (T1). Remove the two ③ screws for the ground connection. 3) Remove the fixing screw. 4) Pull out the coil temp. ④...
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Evaporator How to remove the evaporator. After remove the electrical parts from procedure 2, disassemble the pipe holder at the rear side of the unit. ② ① Remove the screw on the evaporator at the fixed plate. Remove the two screws on the evaporator at the base ③...
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Fan motor How to remove the fan motor. and Fan 1) Remove the front panel, electrical parts and evaporator following procedure 1-3. 2) Remove the two screws and remove the fixing board of ② fan motor. 3) Remove the fixing screw . 4) Pull out the fan motor and fan ass’y from the side direction.
10.2 Outdoor unit Note: This part is for reference, the photos may have slight difference with your machine. KSIQ012-H118-O, Part name Procedures Remarks Panel plate How to remove the panel Screws of top panel (3 screws,1 screws is under the big handle) plate.
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Fan ass’y How to remove the fan ○ ass’y. After remove the panel plate following procedure 1. 2) Remove the nut fixing the fan, and remove the fan. ○ 3) After remove the top cover .Unfix the hooks and then open the electronic control box cover.
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4) Disconnect the connector for fan motor from the electronic control board. ④ ○ 5) Remove the four fixing screws of the fan motor, then remove the motor.
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Electrical How to remove the parts electrical parts. After finish work of item 1 and item 2, remove the connector for the compressor . ○ Pull out the two blue wires connected with the four way valve. ○ ○ 3) Pull out connectors of the condenser coil temp.
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4) Disconnect the electronic expansion valve ④ wire from the control board 5) Remove the ground ○ ○ wires . 6) Remove the wires(1,2,3). 7) Then remove the electronic control box.
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Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. ④ 1)Perform work of item ○ 1,3. 2)Recover refrigerant from the refrigerant circuit. 3)Remove the screw of the coil and then remove the coil.
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KSIQ018-H216-O, Part name Procedures Remarks Panel plate How to remove the panel plate. Screws of top panel (3 screws, 1 screw is under the big handler) 1) Stop operation of the air conditioner and 3 screws turn “OFF” the power of the big handler breaker.
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Fan ass’y ○ How to remove the fan ass’y. 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove ○ the fan. 2) Unfix the hooks and compressor T3,T4,T5 sensor then open the electronic control box cover.
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3) Disconnect the ○ connector for fan motor from the electronic control board. ○ 4) Remove the four fixing screws of the fan motor. Then remove the fan motor. Electrical How to remove the parts ○ electrical parts. 1) After finish work of item 1 and item 2, remove the connectors for the compressor.
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○ 3) Pull out connectors of the condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp. sensor(TP). 4) Disconnect the ○ electronic expansion valve wire 5) Remove the grounding screw. ○ ○ 6) Remove the Wires (1,2,3). Then remove the electronic control box.
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Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. ○ ○ 1) Perform work of item1,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil.
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KSIQ024-H216-O, Part name Procedures Remarks Panel plate How to remove the panel plate. 1) Stop operation of 3 screws of top panel the air conditioner and turn “OFF” the power 3 screws of breaker. big handle 9 screws of front panel 2) Remove the top panel(3 screws).
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Fan ass’y How to remove the fan ass’y. ○ 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove the fan. ○ 2) After remove the top cover . Unfix the hooks and then open the electronic control box cover.
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3) Disconnect the ○ connector for fan motor from the electronic control board. 4) Remove the four fixing ○ screws of the fan motor. Then remove the fan motor. Electrical How to remove the parts ○ electrical parts. 1) After finish work of item 1 and item 2, remove the connectors for the compressor and reactor.
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2) Pull out the two blue ○ wires connected with the four way valve. ○ ○ 3) Pull out connectors of the condenser coil temp. sensor(T3),outdoor ambient temp. sensor(T4) and discharge temp. sensor(TP). 4) Disconnect the ○ electronic expansion valve wire...
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5) Remove the electric ○ heaters. 6) Remove the grounding screw. 7) Remove the Wires (1,2,3 or L1,L2,S).Then remove the electronic control box. ⑥ ○...
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Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. 1) Perform work of ④ ○ item1,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil.
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KSIQ036-H216-O, Part name Procedures Remarks Panel plate How to remove the panel 4 screws of big handle plate. Screws of top panel(3screws,1screws is under the big handle) 1) Stop operation of the air conditioner and turn “OFF” the power breaker. 2) Remove the big handle Screws of front panel(11 screws) first,then remove the top...
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Fan ass’y How to remove the fan ass’y. Electronic control box 1) After remove the panel plate following procedure 1 2) Remove the nut fixing the fan,and remove the fan. compressor ○ 3) Unfix the hooks and remove the screws, then open the electronic control ○...
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Compressor T3,T4,T5,sensor Pressure switch wire ○ Electronic expansion Motor wire 4 way valve 4) Disconnect the connector for fan motor ○ from the electronic control board. 5) Remove the four fixing screws of the fan motor, then remove the motor. ○...
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Electrical How to remove the parts ○ electrical parts. 1) After finish work of item 1 and item 2, remove the connector for the compressor ○ 2) Pull out the two blue wires connected with the four way valve. 3) Pull out connectors of ○...
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4)Disconnect the pressure ○ switch connector. 5) Disconnect the electronic expansion valve ○ wire from the control board ○ ○ 6) Remove the ground wires . 7) Remove the wires(1,2,3 or L1,L2,S). Then remove the electronic control box.
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Four-way How to remove the valve The picture of four-way valve may be different from four-way valve. the one on your side. 1) Perform work of item 1,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil.
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Fax (305) 675-2212 www.klimaire.com sales@klimaire.com The Klimaire logo is a registered Trademark of Klimaire Products inc. Copyright 2017 Klimaire Products Inc. The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details.