KSIH MINI- Split Hyper DC Inverter Air Conditioner SERVICE MANUAL Model Numbers: KSIH009-H225-IW KSIH012-H222-IW KSIH018-H220-IW KSIH024-H220-IW Table of Contents 1. Precaution 2. Part Names And Functions 3. Dimension 4. Refrigerant Cycle Diagram 5. Wiring Diagram 6. Installation Details 7. Operation Characteristics 8. Electronic Function 9. Troubleshooting 10.
CONTENTS 1. Precaution .................................................................................................................................................. 1 1.1 Safety Precaution ..................................................................................................................... 1 1.2 Warning .................................................................................................................................... 1 2. Part Names And Functions ......................
Sharp edges could cause injury, be especially careful of the case edges and the fins on the condenser and evaporator. ◼ For installation, always contact the dealer or an authorized service center. ◼ Do not install the product on a defective installation stand. ◼ Be sure the installation area does not deteriorate with age. If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.
There is risk of electric shock or fire. ◼ Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives. There is risk of property damage, failure of product, or electric shock. ◼ Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.
◼ Do not drink the water drained from the product. ◼ Use a firm stool or ladder when 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 batteries. Do not dispose of batteries in a fire. They may burn of explode.
2. Part Names and Functions 2.
2.
3. Dimension 3.1 Indoor Unit W D Model W D H KSIH009-H225-IW 32.9 in (835 mm) 7.8 in (198 mm) 11.0 in (280 mm) 39.0 in (990 mm) 8.6 in (218 mm) 12.4 in (315 mm) 46.7 in (1186 mm) 10.2 in (258 mm) 13.
For KSIH009-H225-IW For KSIH012-H222-IW, KSIH018-H220-IW For KSIH024-H220-IW 7
3.2 Outdoor Unit More than 30cm(11.8in) More than 60cm(23.6in) (Service space) More than 30cm(11.8in) Fe n ob ce o sta r cle s 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. W in D in (mm) (mm) KSIH009-H225-O 31.5 13.11 KSIH012-H222-O (800) KSIH018-H220-O Model KSIH024-H220-O W1 in A in B in (mm) (mm) (mm) 21.81 34.25 20.24 13.39 (333) (554) (870) (514) (340) 33.27 (845) 14.
4. Refrigerant Cycle Diagram INDOOR OUTDOOR CAPILLARY tube LIQUID SIDE Electronic expansion valve 2-WAY VALVE HEAT EXCHANGE (EVAPORATOR) T3 Condenser temp. sensor HEAT EXCHANGE (CONDENSER) T4 Ambient temp. sensor T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE Accumulator Compressor TP Discharge temp.
Standard Max. Max. Additional Length Elevation Length Refrigerant KSIH009-H225-O 24.6 ft 32.8 ft 82.0 ft 0.16 oz/ft KSIH012-H222-IW+ (7.5m) (10m) (25m) (15g/m) KSIH018-H220-IW+ 24.6 ft 65 ft 98 ft 0.16oz/ft KSIH018-H220-O (7.5m) (20m) (30m) (15g/m) KSIH024-H220-IW+ 24.6 ft 82 ft 164 ft 0.32oz/ft KSIH024-H220-O (7.5m) (25m) (50m) (30g/m) Models 5. Wiring Diagram KSIH009-H225-IW+ (Pls refer the wiring diagram on the unit) 6 Installation Details A KSIH012-H222-O 6.
1. Air purging with vacuum pump valve. 6.5 Adding the refrigerant after running the system for many years 1) Completely tighten the flare nuts of the indoor and outdoor units, confirm that both the 2-way and 3-way valves are set to the closed position. 2) Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port. 3) Connect the charge hose of handle hi connection to the vacuum pump. 4) Fully open the handle Lo of the manifold valve.
6.6 Re-installation while the indoor unit need to be repaired 2.Air purging with vacuum pump 1. Collecting the refrigerant into the outdoor unit 1) Completely tighten the flare nuts of the indoor and outdoor units, confirm that both the 2-way and 3-way valves are set to the closed position. 2) Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port. 3) Connect the charge hose of handle hi connection to the vacuum pump. 4) Fully open the handle Lo of the manifold valve.
and securely tighten the cap of the 3-way valve. Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge. 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). 3) Put the charging cylinder onto the electronic scale and record the weight. 4).
7. Operation Characteristics Temperature Mode Room temperature Cooling operation Heating operation Drying operation 17℃～32℃ 0℃～30℃ 10℃～32℃ (62℉～90℉) (32℉～86℉) (50℉～90℉) -30°C～50°C -30°C～30°C 0°C～50°C (-22°F～122°F) (-22°F～86°F) (32°F～122°F) Outdoor temperature KSIH009-H225-IW KSIH012-H222-IW KSIH018-H220-IW KSIH024-H220-IW ΔT(℉) = 9ΔT(℃) 5 +32 CAUTION: 1.
8. Electronic Function 8.1 Abbreviation T1: T2: T3: T4: TP: Indoor room temperature Coil temperature of evaporator Coil temperature of condenser Outdoor ambient temperature Compressor discharge temperature 8.2 Display function 8.2.1 Icon explanation on indoor display board. ION indication lamp (optional function) ：This lamp illuminates when Clean Air feature is activated.
function. 8.3.7 Compressor preheating functions Preheating permitting condition: When T4(outdoor ambient temperature) ＜3°C (37.4°F), the preheating function will be activated 8.3.8 Zero crossing detection error protection If AC detects time interval is not correct for continuous 240s, the unit will stop and the LED will display the failure. The correct zero crossing signal time interval should be between 6-13ms. 8.3.9 Sensor protection at open circuit and breaking disconnection.
8.4 Operation Modes and Functions the speed can be selected as high, medium, low and auto. When the setting temp. is reached, if the compressor stops running, indoor fan motor will run in Minimum speed or setting speed. The indoor fan is controlled as below: 8.4.1 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.
When the AC run in mute mode, the compressor will run with low frequency. When the current is more than setting value, the current protection function will be activated and the compressor will stop. 8.4.3.2 Outdoor fan running rules The outdoor unit will be run at different fan speed according to T4. For different outdoor units, the fan speeds are different T1-Td+¦ T ¤ T4 E 8.4.3.4 Defrosting mode AC will enter the defrosting mode according to the value of temp. of T3 and the value range of temp.
off the machine. 8.4.6.2 In forced operation mode, all general protections and remote control are available. 8.4.6.3 Operation rules: Forced cooling mode: The compressor runs at F2 frequency and indoor fan runs as breeze. After running for 30 minutes. the machine will turn to auto mode as 24°C (75.2°F) setting temperature. Forced auto mode: The action of forced auto mode is the same as normal auto mode with 24°C (75.2°F) setting temperature.
8.4.10 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. The air conditioner will enter into the information enquiry status. You can press the LED DISPLAY or AIR DIRECTION button to check the next or front item’s information.
Enquiry Display value Meaning Remark T1, T2, T3, -1F,-1E,-1d,-1c,- -25,-24,-23,-22,-21,- 1. All the displaying temperature is actual T4, T2B, TP, 1b,-1A 20 TH, Targeted -19—99 -19—99 2. All the temperature is °C no matter Frequency, A0,A1,…A9 100,101,…109 what kind of remote controller is used. Actual b0,b1,…b9 110,111,…119 3. T1, T2, T3, T4, T2B display range : - Frequency c0,c1,…c9 120,121,…129 25~70, d0,d1,…d9 130,131,…139 TP display range: -20~130.
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. Note: The picture above is only for reference. The plug of your side may be different.
9.
9.2 Outdoor unit error display For KSIH009-H225-O, KSIH012-H222-O, KSIH018-H220-O 290-330VDC standby 210-300VDC running bridge connect to the DR module connect to reactance connect to earth fuse 250V 30A DR R141 [ V1.
+12V DC pulse wave between (+2)-GND +12V DC pulse wave between (+3)-GND +12V DC pulse wave between (+1)-GND T2B-A、T2B-B、T2B-C、T2B-D、T2B-E +12V DC +12V DC Connect to the Indoor evap.pipe out temp. sensor +12V DC pulse wave between (+4)-GND For KSIH024-H220-O external drive DC fan motor connector 6 5 4 3 2 1 connect to exhaust temp.
IPM board connect to DC fan motor 0VAC ( st andby) 10- 200VAC ( r unni ng) TO MAI N CN55 CN19 W V CN55 TO- MAIN + EU- KFR105W/ BP2T3N1- 350( 767) . D. 13.
9.3 Diagnosis and Solution 9.3.1 EEPROM parameter error diagnosis and solution(E0/F4) Error Code E0/F4 Malfunction decision Indoor or outdoor PCB main chip does not receive feedback from conditions EEPROM chip. Supposed causes ● Installation mistake ● PCB faulty Trouble shooting: Power off, then restart the unit 2 minutes later. Yes Replace the indoor/outdoor main PCB. EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.
9.3.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code E1 Malfunction decision Indoor unit does not receive the feedback from outdoor unit during 110 conditions seconds and this condition happens four times continuously. Supposed causes ● Wiring mistake ● Indoor or outdoor PCB faulty Trouble shooting: Power Power off, off, then then restart restart the the unit unit 22 minutes minutes later. later.
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. If the outdoor unit has malfunction, the voltage will move alternately with positive value. While if the indoor unit has malfunction, the voltage will be a certain value.
9.3.3 Zero crossing detection error diagnosis and solution (E2) Error Code E2 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 Trouble shooting: Check if the connections and power supply is normal? No Correct the connections. Turn on the unit when the power supply is good. Yes Indoor main PCB is defective. Replace indoor main PCB.
9.3.4 Fan speed has been out of control diagnosis and solution(E3) Error Code E3/F5 Malfunction decision When indoor fan speed keeps too low (300RPM) for certain time, the conditions unit will stop and the LED will display the failure. Supposed causes ● Wiring mistake ● Fan assembly faulty ● Fan motor faulty ● PCB faulty Trouble shooting: Power off, then restart the unit 2 minutes later No The unit operates normally. No Find out the cause and have it solved No Correct the connections.
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. DC motor voltage input and output (voltage: 220-240V~) NO. Color Signal Voltage 1 Red Vs/Vm 280V~380V 2 --- --- --- 3 Black GND 0V 4 White Vcc 14-17.5V 5 Yellow Vsp 0~5.
9.3.5 Open circuit or short circuit of temperature sensor diagnosis and solution (E5) Error Code E4/E5/F1/F2/F3 Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, the conditions LED will display the failure. Supposed causes ● Wiring mistake ● Sensor faulty ● PCB faulty Trouble shooting: Check the connection between temperature sensor and PCB.
9.3.6 Refrigerant Leakage Detection diagnosis and solution (EC) Error Code EC 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 ＜ Tcool－2°C(Tcool－35.6°F) does not keep continuous 4 seconds and this situation happens 3 times, the display area will show “EC” and AC will turn off.
9.3.6 Overload current protection diagnosis and solution(F0) Error Code F0 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 Trouble shooting: Check the power supply. Is it normal? No Stop the unit.
9.3.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution (P0) Error Code P0 Malfunction decision When the voltage signal that IPM send to compressor drive chip is conditions abnormal, the display LED will show “P0” and AC will turn off. Supposed causes ● Wiring mistake ● IPM malfunction ● Outdoor fan assembly faulty ● Compressor malfunction ● Outdoor PCB faulty Trouble shooting: For 9K~18K: Check if the wiring between main PCB and compressor .
For example: Note: The photos below are only for reference, it’s may be not same totally with the ones on your side.
P-W N-U 39
N-V N-W 40
For 24K: 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 Check whether whether the the power power voltage voltage is is normal. normal.
9.3.8 Over voltage or too low voltage protection diagnosis and solution (P1) Error Code P1 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 ● PCB faulty Trouble shooting: Check the power supply No Stop the unit No Correct the connections or replace the wires.
9.3.9 High temperature protection of IPM module diagnosis and solution (P2) Error Code P2 Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Supposed causes ● PCB faulty Trouble shooting: Check Check ifif the the fastening fastening screws screws on the PCB and on the PCB and IPM IPM radiator radiator are are fixed fixed tightly. tightly. Yes No Tighten Tighten the the screws screws and and apply apply silicon silicon grease. grease.
9.3.10 Inverter compressor drive error diagnosis and solution (P4) Error Code P4 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.
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.
For 24K: 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 Check whether whether the the power power voltage voltage is is normal. normal.
9.3.11 Low pressure protection diagnosis and solution(P6) Error Code P6 Malfunction decision When the pressure of system reaches 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 ● Pressure protector faulty ● Fan motor faulty ● PCB faulty ● System problems.
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.
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 -20 -4 115.266 20 68 12.6431 60 140 2.35774 100 212 0.62973 -19 -2 108.146 21 70 12.0561 61 142 2.27249 101 214 0.61148 -18 0 101.517 22 72 11.5 62 144 2.19073 102 216 0.59386 -17 1 96.3423 23 73 10.9731 63 145 2.11241 103 217 0.57683 -16 3 89.5865 24 75 10.4736 64 147 2.03732 104 219 0.56038 -15 5 84.
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 -20 -4 542.7 20 68 68.66 60 140 13.59 100 212 3.702 -19 -2 511.9 21 70 65.62 61 142 13.11 101 214 3.595 -18 0 483 22 72 62.73 62 144 12.65 102 216 3.492 -17 1 455.9 23 73 59.98 63 145 12.21 103 217 3.392 -16 3 430.5 24 75 57.37 64 147 11.79 104 219 3.296 -15 5 406.7 25 77 54.89 65 149 11.38 105 221 3.
Appendix 3: °C °F °C °F °C °F °C °F °C °F -5 23 21 69.8 51 123.8 82 179.6 113 235.4 -4 24.8 22 71.6 52 125.6 83 181.4 114 237.2 -3 26.6 23 73.4 53 127.4 84 183.2 115 239 -2 28.4 24 75.2 54 129.2 85 185 116 240.8 -1 30.2 25 77 55 131 86 186.8 117 242.6 0 32 25.5 77.9 56 132.8 87 188.6 118 244.4 0.5 32.9 26 78.8 57 134.6 88 190.4 119 246.2 1 33.8 27 80.6 58 136.4 89 192.2 120 248 1.5 34.7 28 82.4 59 138.
Appendix 4 Normal voltage of P and N 208-240V (1-phase, 3-phase) 380-420V (3-phase) In standby around 310VDC With passive PFC module >200VDC around 530VDC In operation With partial With fully active PFC active PFC module module >310VDC >370VDC 52 / >450VDC
2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASM98D32UFZ ATM115D43UFZ2 ATM150D23UFZ ATF235D22UMT ATF250D22UMT 2.25Ω 1.87Ω 1.72Ω 0.75Ω 0.
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 (+) Red Normal resistance value (-) Black (+) Red N P Digital tester U ∞ V (Several MΩ) V (-) Black U ∞ N W W Normal resistance value (Several MΩ) (+) Red 4: Indoor AC Fan Motor Measure the resistance value of each winding by using the tester.
5: Pressure on Service Port Cooling chart: °F(° C) ODT IDT 75 85 95 105 115 (23.89) (29.44) (35) (40.56) (46.11) BAR 70/59 8.2 7.8 8.1 8.6 10.1 BAR 75/63 8.6 8.3 8.7 9.1 10.7 BAR 80/67 9.3 8.9 9.1 9.6 11.2 75 85 95 105 115 (23.89) (29.44) (35) (40.56) (46.11) °F(° C) ODT IDT PSI 70/59 119 113 117 125 147 PSI 75/63 124 120 126 132 155 PSI 80/67 135 129 132 140 162 75 85 95 105 115 (23.89) (29.44) (35) (40.56) (46.
Heating Chart: °F (°C) ODT IDT 57/53 47/43 37/33 27/23 17/13 (13.89/11.67) (8.33/6.11) (2.78/0.56) (-2.78/-5) (-8.33/-10.56) BAR 55 30.3 28.5 25.3 22.8 20.8 BAR 65 32.5 30.0 26.6 25.4 23.3 BAR 75 33.8 31.5 27.8 26.3 24.9 57/53 47/43 37/33 27/23 (- 17/13 (13.89/11.67) (8.33/6.11) (2.78/0.56) 2.78/-5) (-8.33/-10.
10 Disassembly Instructions Note: This part is for reference, the photos may have slight difference with your machine. 10.1 Indoor unit No. Parts name Procedures Remarks 1 Front panel How to remove the front panel. Overview: 1) Pull the below side of the panel and release the clips. Then remove the front panel. 2) Remove the filter and horizontal louver. 3) Remove the four fixing screws. 4) Remove the cover (one screw).
2 Electrical parts How to remove the electrical parts. 1) After remove the front panel from procedure 1, pull out the room temp. sensor and evaporator coil sensor. Remove the grounding screws. 2) Pull out the clip toward the left side and open the cover. Room temp. Grounding screws sensor Swing motor 3) Remove the fixing screw and open the electrical box cover. . Clip for electronic Evaporator coil control box cover temp. sensor 4) Pull out the connectors of the swing motor and fan motor.
3 Evaporator How to remove the evaporator. 1) After remove the front panel assembly and electrical parts following procedure 1 and procedure 2, remove the pipe holder at the rear side of the unit. 2) Remove the two screws on the evaporator at the base bearing side. 3) Remove two screws on the evaporator at the fixed plates and then lift the evaporator assembly.
4 Fan and motor How to remove the fan and motor. 1) After remove the evaporator assembly following procedure 1, procedure 2 and procedure 3, remove the three screws fixing the cover 2) Remove the screw fixing the motor and then pull out the motor.
10.2 Outdoor unit KSIH009-H225-O, KSIH012-H222-O No. Part name Procedures Panel plate How to remove the panel plate. 1) Remarks Screws of top panel (3 screws, 1 screw is under the big handler) Stop operation of the air conditioner and 3 screws of the big handler turn “OFF” the power breaker. 6 screws of front panel 2 ○ 3) Remove the big handle first, and then remove the top panel (3 4 ○ screws).
2 Fan assembly 1 ○ How to remove the fan assembly. 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove 2 ○ the fan. 2) Unfix the hooks and then open the electronic compressor T3,T4,T5 sensor control box cover.
3) Disconnect the 3 ○ connector for fan motor from the electronic control board. 4 ○ 4) Remove the four fixing screws of the fan motor. Then remove the fan motor. 3 Electrical parts How to remove the 1 ○ electrical parts. 1) After finish work of item 1 and item 2, remove the connectors for the compressor. 2 ○ 2) Pull out the two blue wires connected with the four-way valve.
3) Pull out connectors of 3 ○ the condenser coil temp. sensor(T3), outdoor ambient temp. sensor (T4) and discharge temp. sensor (TP). 4) disconnect the 4 ○ electronic expansion valve wire 5) Remove the grounding screw. 5 ○ 6) Remove the wires (1,2,3) then remove the electronic control box.
4 Four-way valve How to remove the fourway valve. 1) Perform work of The picture of four-way valve may be different from the one on your side. 3 4 ○ ○ Item 1,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil. 4) Detach the welded parts of four-way valve and pipe. 1) Then the four-way valve assembly can be removed 5 Compressor 2 ○ How to remove the compressor. 1) After perform work of Item 1,3.
KSIH018-H220-O No. Part name Procedures Panel plate How to remove the panel Remarks plate. 1) Stop operation of 3 screws of top panel the air conditioner and turn “OFF” the power 3 screws of breaker. big handle 2) Remove the top panel (3 screws).
2 Fan assembly How to remove the fan 1 ○ assembly. 1) After remove the panel plate following procedure 1, remove the hex nut fixing the fan and then remove the fan. 2 ○ 2) After remove the top cover. Unfix the hooks and then open the electronic control box cover.
3) Disconnect the 3 ○ connector for fan motor from the electronic control board. 4) Remove the four fixing 4 ○ screws of the fan motor. Then remove the fan motor. 3 Electrical parts How to remove the 1 ○ electrical parts. 1) After finish work of item 1 and item 2, remove the connectors for the compressor and reactor.
2 ○ 2) Pull out the two blue wires connected with the four-way valve. ○,3 3 ○ 3) Pull out connectors of the condenser coil temp. sensor(T3), outdoor ambient temp. sensor(T4) and discharge temp. sensor (TP).
5 ○ 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.
4 Four-way valve How to remove the fourway valve. 1) The picture of four-way valve may be different from the one on your side. Perform work of ④ 3 ○ Item 1, 3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil. 4) Detach the welded parts of four-way valve and pipe. 2) Then the four-way valve assembly can be removed 5 Compressor 2 ○ How to remove the compressor.
KSIH024-H220-O No. Part name Procedures 1 Panel plate How to remove the panel Remarks 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 Fan assembly How to remove the fan assembly. fan Electronic control box 1) After remove the panel plate following procedure 1 compressor 2 ○ 2) Remove the nut fixing the fan and remove the fan. 3 ○ 3) Unfix the hooks and remove the screws, then open the electronic control box cover.
T3,T4,T5,sensor Pressure switch Compressor wire ○,5 Electronic expansion 4 way valve 4) Disconnect the 4 ○ connector for fan motor from the electronic control board. 5) Remove the four fixing screws of the fan motor, 5 ○ then remove the motor.
3 Electrical parts How to remove the 1 ○ electrical parts. 1) After finish work of item 1 and item 2, remove the connector for the compressor 2 ○ 2) Pull out the two blue wires connected with the four-way valve. 3) Pull out connectors of 3 ○ the, condenser coil temp. sensor (T3), outdoor ambient temp. sensor (T4) and discharge temp. sensor (TP).
4)Disconnect the pressure switch connector. ○,4 5) Disconnect the electronic expansion valve 5 ○ wire from the control board 6 ○ 6) Remove the ground wires. 7) Remove the wires (1, 2, 3 or L1, L2, S). Then remove the electronic control box.
4 Four-way valve How to remove the fourway valve. 1) Perform work of item The picture of four-way valve may be different from the one on your side. 1,3. 2) Recover refrigerant from the refrigerant circuit. 3) Remove the screw of the coil and then remove the coil. 4) Detach the welded parts of four-way valve and pipe. 5) Then the four-way valve assembly can be removed 5 Compressor 3 ○ 4 ○ 2 ○ How to remove the compressor.
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