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KIWU09H1-1A/KOIU09H1-1 KIWU12H1-1A/KOIU12H1-1 KIWU12H2-1A/KOIU12H2-1 KIWU18H2-1A/KOIU18H2-1 KIWU24H2-1A/KOIU24H2-1 KIWU36H2-1A/KOIU36H2-1 Mark of Superior Quality IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference. For more information please visit www.klimaire.com...
Air Conditioner Service Manual Part Ⅰ Technical Information 1. Important Notice This service manual is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair the appliance may result in personal injury and property damage.
Air Conditioner Service Manual 3. Electric Diagram 3.1 Wiring diagram MODEL: KIWU09H1-1A/KOIU09H1-1_ Power Supply from Outdoor INDOOR UNIT: OUTDOOR UNIT: θ θ θ...
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Air Conditioner Service Manual MODEL: KIWU12H1-1A/KOIU12H1-1_ Power Supply from Outdoor INDOOR UNIT: OUTDOOR UNIT: θ θ θ...
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Air Conditioner Service Manual MODEL: KIWU12H2-1A/KOIU12H2-1 \ KIWU18H2-1T/KOIU18H2-1_ Power Supply from Outdoor INDOOR UNIT: OUTDOOR UNIT: θ θ θ...
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Air Conditioner Service Manual MODEL: KIWU24H2-1A/KOIU24H2-1_ Power Supply from Outdoor INDOOR UNIT: PEOPLE FEEL θ CN14 PIPE TEMPERATURE (OPTIONAL PART) θ ROOM TEMPERATURE HUMIDITY SENSOR CN19 (OPTIONAL PART) WI-FI CN16 (OPTIONAL PART) (OPTIONAL PART) DISPLAY GNYE BN(RD) AC-L (P1L) SWING MOTOR CN5-1 P2(N) YE(RD)
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Air Conditioner Service Manual MODEL: KIWU36H2-1A/KOIU36H2-1 _ Power Supply from Outdoor INDOOR UNIT: PEOPLE FEEL θ CN14 PIPE TEMPERATURE (OPTIONAL PART) θ ROOM TEMPERATURE HUMIDITY SENSOR CN19 (OPTIONAL PART) WI-FI CN16 (OPTIONAL PART) (OPTIONAL PART) DISPLAY GNYE BN(RD) AC-L (P1L) SWING MOTOR CN5-1 P2(N)
Air Conditioner Service Manual 3.2 PCB LAOUT Note: the PCB type is printed on the PCB, please inquire the PCB layout via the PCB type information. Indoor PCB 9K, 12K, 18K, 24K _ AC motor type Model PCB type: A010283 PCB type: A010268 Transformer IN ODU AC power output...
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Air Conditioner Service Manual PCB type: A010412 9K, 12K, 18K, 24K _ DC motor Model PCB type: A010270 10 11 ODU AC power output Fuse ODU AC power input DC fan motor connection IDU/ODU wiring connection --N connector Power supply --N connector Anion connector IDU/ODU communication wiring Left-Right swing connector...
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Air Conditioner Service Manual A010403 PCB type:...
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Air Conditioner Service Manual outdoor unit 9K, 12K A010332 PCB type: ODU PCB Mainly relay Fuse L, N & 1 4-way valve Heater DC fan motor connector Electronic expansion valve Discharge sensor connector/ OAT/OPT connector LED5 PCB type: A010386...
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Air Conditioner Service Manual A010331 PCB type: LED5 Discharge sensor connector/ OAT/OPT connector Electronic expansion valve AC/DC fan motor connector 4-way valve Heater Communication wiring L line Fuse N line ODU PCB Mainly relay LED1-LED4 A010350 PCB type: LED5 OAT/OPT connector Discharge sensor connector Electronic expansion...
Air Conditioner Service Manual 4. Controller Introduction RT-------Room Temperature. IPT------Indoor Pipe (Coil) Temperature. ST------Indoor Setting Temperature. OPT---Outdoor Pipe Temperature. OAT---Outdoor Ambient Temperature. ODT---Outdoor Discharge Temperature. CRT---Compensated Room Temperature. IDU--- Indoor unit ODU---Outdoor unit. Note: When AC finishing installation, because of the air ventilation and the distance of temperature test sensor to different location of the house, the temperature for IDU PCB control need compensation.
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Air Conditioner Service Manual c. to the set temperature. After compressor ceased, the fan motor stops working according to the temperature of OPT and OAT, the max delay for the motor should be less than 160s. 2). When switch on unit on cooling mode, ODU fan motor will delay 5s after compressor starts up. 4.
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Air Conditioner Service Manual The compressor stops operation. 3). The compressor frequency control: Based on relation of RT & ST, and the changing speed of RT. 4). The compressor will also stop working while unit: a. switched off. b. under protection. c.
Air Conditioner Service Manual a. t1≥t2, or b. t3≤t1<t2. and also the temperature (related to OAT & OPT) tested 3 min continuously meets for defrosting. 1) Defrosting start up: Compressor stops working, and re-starts to working after 50s delay; 2) Conditions for quitting defrosting a.
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Air Conditioner Service Manual 4℃ High fan Mid fan 2℃ Low fan 4.1.6 Timer The unit has times control, when the unit meet the timer preset, it will be switched on or off automatically. 1. TIMER ON 1). TIMER ON can be set only when the air conditioner is OFF. 2).
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Air Conditioner Service Manual 3). If unit have 6 times of over load stop-working protection continuously, this protection can’t be recovered unless press ON/OFF button, and unit will show failure code. In the process of operation, once the compressor runs continuously more than 6 min, the counter of over load stop-working protection will be reset to zero and start a new counting process.
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Air Conditioner Service Manual mode. Note: If the defective failure can’t be recovered, the failure can’t eliminate even if operation mode changed. 4.1.11 Complementary 4.1.11.1 Energy saving (ECO) Function effective on Cooling and Heating mode only. On cooling mode, the set temperature range from 26℃ (79°F) to 31℃ (88°F),on heating mode, from 16℃ (61°F) to 25℃...
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Air Conditioner Service Manual 4.2 WIFI OPERATION MAUAL 4.2.1 The WIFI control logic CLOUD Internet controller Home wireless router TCL AC IDU WIFI module IDU PCB Remote controller 4.2.2 Download and installation Customer can scan the QR in the user manual or from appliance APP store to download the APP and install it in the cell phone, while installation achieved, there would be an icon as picture created on the desktop.
Air Conditioner Service Manual PART Ⅱ Installation and Maintenance 1. Notes for installation and maintenance Safety Precautions Important! Please read the safety of precautions carefully before installation and maintenance. The following contents are very important for installation and maintenance. Please follow the instructions bellow. ●...
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Air Conditioner Service Manual 6) Make sure no foreign objects are left in the unit after finishing installation. Improper installation may lead to fire hazard, explosion, electric shock or injury. Safety precautions for Installing and Relocating the unit. To ensure safety, please be mindful of the following precautions. Warnings When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.
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Air Conditioner Service Manual m1=(4m )×LFL, m2=(26m ) ×LFL, m3=(130m ) ×LFL Where LFL is the lower flammable limit in kg/m , R290 LFL is 0.038kg/m , R32 LFL is 0.306kg/m For the appliances with a charge amount m1<M<m2: The maximum charge in a room shall be in accordance with the flowing: M =2.5×(LFL) (5/4) ×h...
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Air Conditioner Service Manual It is a must to do the safety inspection before maintaining or repairing an air conditioner using combustible refrigerant in order to ensure that the fire risk is reduced to minimum. 3) Installation Safety Installation Safety Principles Site Safety Open Flames Prohibited Ventilation Necessary...
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Air Conditioner Service Manual Special tools: Tool Name Requirement(s) for Use It should be an explosion-proof vacuum pump; can ensure certain precision and its Mini Vacuum Pump vacuum degree should be lower than 10Pa. It should be a special explosion-proof filling device; have certain precision and its filling deviation should be less than 5g.
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Air Conditioner Service Manual Make sure powered supply to air conditioner is off. Before maintenance, it is necessary to cut off the power and discharge the capacitor power which used in the air conditioner. If it is a must to need the power supply during the maintenance, it is necessary to do ongoing leak detection at the most dangerous position/point in order to avoid potential danger.
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Air Conditioner Service Manual It is necessary to use nitrogen to clear the cyclic system before operating the refrigerating system and vacuumize the outdoor unit for 30 minutes at least. It is necessary to ensure that there is no cross contamination among different refrigerants when the refrigerant filling device is used.
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Air Conditioner Service Manual call, set the emergency area and prohibit irrelevant personnel and vehicles from approaching. The professional firefighters should wear anti-static clothing to handle the emergency on the site and cut off the source of leak. It is necessary to use nitrogen for blowing the site, especially the low-lying positions, clear away the ...
Air Conditioner Service Manual 2 Installation 2.1 Installation Dimension Diagram Space to the wall at least 15 cm at least 15 cm (6") (6") Space to the wall Space to the obstruction Space to the floor Space to the obstruction Space to the obstruction Space to the wall...
Air Conditioner Service Manual 2.4 Position 1) Must follow the electric safety regulations when Indoor unit installing the unit. 2) According to the local safety regulations, use Install the indoor unit level on a strong wall that is qualified power supply circuit and air switch. not subject to vibrations 3)...
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Air Conditioner Service Manual 9K(800T) The hole must slope downwards towards the exterior. Note: Keep the drain pipe down towards the direction of the wall hole, otherwise leakage may occur. 4.2.1 Electrical connections---Indoor unit 1).Lift the front panel. 2).Take off the cover as indicated in the picture (by removing a screw or by breaking the hooks).
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Air Conditioner Service Manual Wrap the insulation material around the connecting portion. Overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there is no gap. Shape the connection pipe 4.2.2 Connecting the pipes.
Air Conditioner Service Manual 1) Fasten the drain port in the 25mm hole placed in the part of the unit as shown in the picture. 2) Connect the drain port and the drain pipe. Pay attention that water is drained in a suitable place.
Air Conditioner Service Manual 2.8 Vacuum and gas leakage test 2.9 Final test 1. Use vacuum Pump 1 Preparation of test operation. 1) Air and humidity left inside the refrigerant circuit can The client approves the air conditioner cause compressor malfunction. After having connected installation.
Air Conditioner Service Manual 3. Maintenance 3.1 Failure code Code Reason Remark IDU & ODU Communication failure The IDU & ODU wiring connection correct? IDU Room Temperature sensor failure.(IDU IDU sensor and PCB. RT failure) IDU Coil temperature sensor failure.(IDU IPT IDU sensor and PCB.
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Air Conditioner Service Manual Cooling system gas flow abnormal Please check the troubleshooting for detail. PROTECTION.. PFC PROTECTION Please check the troubleshooting for detail. The Compressor lack of phase / Anti-phase Please check the troubleshooting for detail. PROTECTION. IPM Module temperature PROTECTION Please check the troubleshooting for detail.
Air Conditioner Service Manual 3.2 Trouble shooting 3.2.1 E0 ---IDU & ODU communication failure Start Display E0 IDU wiring Check and re- E0 disappear? connection correct? connect Check communication Replace/ re- E0 disappear? wiring and the connection, connect in good condition? ODU wiring Check and re- E0 disappear?
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Air Conditioner Service Manual 3.2.2 E1, E2 ---IDU Room temperature sensor and/or coil temperature sensor failure. Start Display E1or E2 Is the sensor well Re-connect connected to PCB E1/E2 disappear? Multi-meter check the Replace the sensor sensor, is it open or short circuit? The malfunction eliminated?
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Air Conditioner Service Manual 3.2.3 E4 --- AC Cooling system abnormal (Gas not enough) Start Display E4 Check the pressure AC pressure correct? Check the sensor short or (cooling:0.8-1.3Mpa,/ open? heating 2.0-3.6Mpa) Replace the sensor Check the valves open or Replace the main PCB Open the valves Lower than 0.8 Mpa in...
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Air Conditioner Service Manual 3.2.4 E6----IDU ventilation failure (PG and DC fan motor only) Start Display E6 Turn the fan blades by hand while power-off condition Adjust the motor and blade Can the fan blades run assembly so that rotor can smoothly? run smoothly.
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Air Conditioner Service Manual 3.2.5 E3, E7 or E8----ODU Coil temperature sensor, Ambient temperature sensor or Discharge temperature sensor failure. When any of the sensor resistance open or short circuit , unit will display failure code as E3/E7 or E8, IDU and ODU turns off.
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Air Conditioner Service Manual 3.2.6 E9---ODU IPM /Compressor drive fault If unit have 6 times stopping works for IPM protection (P0) continuously, it will display E9 error, and unit can’t be recovered to operation, except press ON/OFF button. Display E9 Display F9 or FA first Replace ODU PCB then E9...
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Air Conditioner Service Manual 3.2.7 EF---ODU DC fan motor failure Shut off Check the fan blade by Re install the DC motor hand, can it rotate freely Works normal? Fan motor well Re-connect connect to PCB Works normal? 1. For built-in control (5pins) motor: check the V =310V? =15V?
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Air Conditioner Service Manual 3.2.8 EU---ODU voltage test sensor failure After power relay works, when tested voltage effective value less than 50V for 3s continuously, unit will display EU. Start Display EU Test voltage btw ODU Check while voltage terminal L/N, more than become normal 50V~? Unit works?
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Air Conditioner Service Manual 3.2.9 P0---IPM protection When overheat or overcurrent for IPM, AC unit will display P0protection. Display P0 Restart unit. It works normal? Wiring connection Re-connect U/V/W correct? P0 disappear? ODU fan motor no Replace ODU Can compressor works or too slowly? fan motor start up?
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Air Conditioner Service Manual 3.2.10 P1--- Over / under voltage protection 1. Test voltage between L &N, When the power supply V>AC260V or V<AC150V, AC will display P1 protection, unit will recover back to previous status while V>AC155V. 2. Test voltage on the big size electrolytic capacitor of ODU PCB, When DC busbar voltage V>DC420V or V <DC150V, unit will recover back to previous status while DC190V<V<DC410V Display P1 Wait until the AC...
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Air Conditioner Service Manual 3.2.11 P2---Over Current protection When the AC unit running current more than I , it will stop and display P2 protection. Note: for different AC model, I has difference valve. Display P2 ODU fan motor Replace fan motor works? P2 disappear? IDU filter or ODU...
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Air Conditioner Service Manual 3.2.12 P4 ---ODU Discharge temperature overheating protection Display P4 ODU temperature Normal protection higher than 60℃? Adjust ODU ODU location Enough space for Unit operate? acceptable? installation ventilation? Condenser too Clean IDU filter or P4 disappear? dirty? or filter ODU condenser.
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Air Conditioner Service Manual 3.2.13 P5---Sub-cooling protection on Cooling/Dry mode On Cooling or Dry mode, when IDU evaporator coil temperature IPT<1℃ (34°F) continuously for 3 min after compressor start up for 6 min, CPU will switch off outdoor unit and show P5 failure code. Display P5 Switch on unit after minutes...
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Air Conditioner Service Manual 3.2.14 P6---Overheating protection on Cooling mode On Cooling or Dry mode, when ODU condenser coil temperature OPT≥62℃ (144°F) , MCU will switch off outdoor unit and show P6 failure code. Display ODU fan motor Replace fan motor Fan motor works normal? broken?
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Air Conditioner Service Manual 3.2.15 P7---Overheating protection on Cooling mode ℃ (144ºF), ODU PCB will switch off outdoor unit On heating mode, when IDU evaporator coil temperature IPT≥62 and show P7 failure code. Display P7 ODU fan motor Fan motor Replace fan motor works normal? broken?
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Air Conditioner Service Manual 3.2.16 P8---Outdoor Overtemperature/Under-temperature protection When environment temperature as below condition, the compressor will stop working, after 200s delay, the IDU will show P8 failure code. (1). On Cooling or Dry mode: ODU ambient temperature: OAT<-20℃ ( 6 8 º F ) or OAT>63℃ (145ºF); (2).
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Air Conditioner Service Manual 3.2.17 P9---The compressor driving protection (the compressor load abnormal) When compressor start up or in the process of operation, if: (1). MCU can’t test the feedback signal from compressor, or (2). Tested a abnormal signal from compressor, or (3).
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Air Conditioner Service Manual 3.2.18 F4---Cooling system Gas flow abnormal protection When compressor startup, unit will check the variation of IDU coil temperature. If there is mistake installer forgetting to open the 2-way or 3-way valve on ODU, the gas can’t flow in the cooling system, it will show F4 protection. Start Display F4 Check the 2-way...
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Air Conditioner Service Manual 3.2.19 F5---PFC Protection PFC Overcurrent protection F5 Code Check the power supply, Display F5 by is it abnormal? (this is random? normal protection) Display F5 frequently Switch off the unit for 3 Still F5? minutes and re-switch on Still F5? Replace ODU PCB...
Air Conditioner Service Manual 3.2.20 F6 The Compressor Lack of phase / Anti-phase protection. If ODU PCB can’t test one, or even three phase of compressor current, it will show F6 protection. Display F6 Check compressor Re-connect wiring connector, is it well connected? Problem solved? The Compressor...
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Air Conditioner Service Manual 3.2.21 F7---Module temperature protection. IPM overtemperature protection, when IPM temperature more than 95℃, it will show F7. Display F7 Clean or adjust the gap IPM well contact Any dust or gap btw btw IPM and heat sink to heat sink? IPM &...
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Air Conditioner Service Manual 3.2.22 F8---4-Way Value Reversing abnormal On heating mode, if IDU Coil temperature tested lower than Room temperature 5℃ or even more after compressor works for 8min, unit will show F8 code. Display F8 the 4-way valve Re-connect wiring connection correct?
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Air Conditioner Service Manual 9.2.23 Fy--- Gas leakage protection After compressor works in high frequency for 9 min, if the temperature on IDU evaporator & ODU condenser has only a little variation comparing previous, but, the compressor discharge temperature on high level, then the unit will show Fy failure code.
Air Conditioner Service Manual 4. Disassembly IDU & ODU 4.1. IDU Disassembly Steps Reference photo 1. Before disassembly The original status. 2. Disassemble Front Panel, Display Board. Display A. Open front panel. B. Remove one screw and take the display box out from panel. C.
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Air Conditioner Service Manual 5. Disassemble the Bottom Plate. Force apart the bottom plate left and right sides with hands towards as RED arrow, you can easily disassemble the bottom plate. (Note: there’re buckles on bottom plate) 6. Disassemble the Flap Assembly Force apart the flap assembly from base plate, you can take the it out.
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Air Conditioner Service Manual 8. Disassemble the Mid Frame Buckles A. unfix 2 screws between mid frame and base plate. B. Apart 4 buckles upside mid frame from base plate. C. Apart air outlet the upper Hooks at air outlet upper side side and lower side hooks from base plate shown as picture.
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Air Conditioner Service Manual A. Unfix screw btw mounting plate and base plate. B. Press buckles shown as RED arrow, you can loose the mounting plate from Clip unit base. Clip C. Press pipes cover on locker points and force upwards by hand to take the cover out from base.
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Air Conditioner Service Manual After remove the motor cover, you can take both the cross fan and motor out in the same time. 14. Disassemble Cross Fan and Motor. Unfix the lock screw btw cross motor, separate the both parts. 4.2 ODU Assembly Step Reference picture...
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Air Conditioner Service Manual Unfix screws btw the top cover with front panel, left and right plate, then you can take the top cover out. step2:Disassemble the Fan Guard and Front Panel Unfix screws on front panel with fan guard. ODU middle separate plate and base plate, uplift...
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Air Conditioner Service Manual Unfix screws btw Right Plate and the Electric Box assembly, Valve Plate , Base Plate, then you can take the Right plate out. Unfix screws btw Left Plate, Base plate and Condenser plate, you can take the left plate out.
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Air Conditioner Service Manual Unfix screw btw Electric Box and motor supporter etc. loosen the wiring clamp, then you can take the control box out. step6:take out the noise cotton Shown as picture to take the cotton out step7:Disassemble the separate plate Unfix the screw btw separate plate and unit, and take it out...
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Air Conditioner Service Manual Unfix screw btw Valve plate and base, you can take the 2-way and 3-way valve out by welding. Note: 1). The welding can only place while no gas in the unit. 2). Pay attention to the fire to prevent any injury.
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Air Conditioner Service Manual Unfix screws btw fan motor with supporter, and supporter with base plate. Note: Pay attention to the motor wiring, it can’t be taken out by force.
Air Conditioner Service Manual 3. Appendix Pipes Flaring Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure. A. Cut the pipes and the cable. 1) Use the piping kit accessory or the pipes purchased locally. 2) Measure the distance between the indoor and the outdoor unit.
Air Conditioner Service Manual 4.Appendix THERMISTOR TEMPERATURE CHARACTERISTICS 1). Indoor unit and outdoor exchange temperature and outside air temperature sensor temperature characteristics TEMP. Resistance Voltage of TEMP. Resistance Voltage of TEMP. Resistance Voltage of ℃ ℃ ℃ (k Ohm) resistance (k Ohm) resistance (k Ohm)
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Air Conditioner Service Manual TH1: indoor room temperature sensor and outside air temperature sensor TH2: indoor exchange temperature sensor and outside exchange temperature sensor Before measuring resistance, disconnect connectors as shown above. Outdoor unit sensor temperature characteristics TEMP. R min R(t) R max TEMP.
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Tel: (305) 593 - 8358 www.klimaire.com customerservice@klimaire.com The Klimaire logo is a registered Trademark of Klimaire Products Inc. Copyright 2023 Klimaire Products Inc. The design and specifi cations are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details.
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