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SERVICE MANUAL Mini-Split Air Conditioner YWHJZH009/12BAMKAFX Read this manual before installation and operation Make sure that it is well kept for later reference MYHJZHAMQ-120305...
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Installing, starting up, and servicing air conditioner can be Make sure the outdoor unit is installed on a stable, level hazardous due to system pressure, electrical components, surface with no accumulation of snow, leaves, or trash and equipment location, etc. beside.
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YWHJZH009BAMKAFX Please ignore this column YWHJXH009BAMK-FX Please ignore this column...
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YWHJYH009BAMKA-X Please ignore this column...
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Please ignore this column YWHJZH012BAMKAFX YWHJXH012BAMK-FX...
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Please ignore this column YWHJYH012BAMKA-X...
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Cooling Heating Condition Condition Indoor:DB20 Indoor:DB27 WB19 Outdoor:DB7 Outdoor:DB35 WB24 Indoor air flow:Super High Indoor air flow: Super High Pipe length: 5m Pipe length: 5m Compressor speed (rps) Compressor speed (rps) Cooling Heating Condition Condition Indoor:DB20 Indoor:DB27 WB19 Indoor air flow:Super High Indoor air flow: Super High Pipe length: 5m Pipe length: 5m...
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Indoor Unit Outdoor Unit Super High High Middle Quiet Indoor fan motor rotating speed (rps) Compressor speed (rps)
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DC fan Microswitch Electrostatic precipitation Up&down small swing interface Left and right swing Up&down big swing interface Display interface Ambient temp. sensor Tube temp. sensor Outdoor unit live wire Indoor unit live wire input interface Health Fuse Indoor and outdoor unit neutral wire interface Indoor and outdoor unit communication interface...
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Input of neutral Interface 1 of Neutral wire of electric Live wire of 4-way 13 Temp sensor wire of power electric reactor heater of chassis valve Input of live Interface 2 of Neutral wire of electric Live wire of electric U,V,W three phases wire of power electric reactor...
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Input of neutral Interface 1 of Neutral wire of electric Live wire of 4-way 13 Temp sensor wire of power electric reactor heater of chassis valve Input of live Interface 2 of Neutral wire of electric Live wire of electric U,V,W three phases wire of power electric reactor...
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Signal transmitter FAN button Press this button, Auto, Low , Medium-low Medium, Medium-high, High speed can be circularly selected. After powered on, Auto fan speed is default. Under DRY mode, Low fan speed only can be set up. Remote control AUTO Medium-low fan Low fan...
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Note: Besure that there are no obstructions between receiver and remote controoler; Don't drop or throw the remote control; Don't let any liquid in the remote control and put the remote control directly under the sunlight or any place where is very hot. X-FAN X-FAN button ●...
This wireless remote control is universal, and it could be used for many units, some buttons of this control which are not available to this unit will not be described below. TIMER ON TIMER ON BUTTON Timer On setting: Signal “ON”will blink and ●...
Press this button, can select Sleep 1 ( ), Sleep 2 ( ● Sleep 3 ( ) and cancel the Sleep, circulate between these, after electrified, Sleep Cancel is defaulted. Sleep 1 is Sleep mode 1, in Cool, Dehumidify modes: sleep status ●...
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(3) Under the initial presetting temperature 21 27 , after Sleep function started up, the temperature will decrease 1 in every hour, after 2 decreased, this temperature will be maintained. (4) Under the initial presetting temperature 28 , after Sleep function started up, the temperature will decrease 1 every hour, after 3 decreased, this temperature will be maintained.
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Guide for operation- general operation 1. After powered on, press ON/OFF button, the unit will start to run. (Note: When it is powered on, the guide louver of main unit will close automatically.) 2. Press MODE button, select desired running mode. 3.
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About switch between Fahrenheit and Centigrade Under status of unit off, press MODE and - buttons simultaneously to switch℃ and ℉. Combination of " TEMP" and "CLOCK" buttons : About Energy-saving Function Press “TEMP” and “CLOCK” simultaneously in COOL mode to start energy-saving function.Nixie tube on the remote controller displays “SE”.
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● Indoor Unit 1Temperature Parameters Indoor preset temperature (Tpreset) Indoor ambient temperature (Tamb.) 2 Basic functions (The temperature in this manual is expressed by Centigrade. If Fahrenheit is used, the switchover between them is Tf=TcX1.8+32.) Once the compressor is energized, there should be a minimum interval of 3 minutes between two start-ups. But if the unit is de-energized and then energized, the compressor can restart within 3 minutes.
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Start heating Tpreset +5 ˚C Previous running status Tpreset +2 ˚C Tamb. Start heating 6 min. 3 min. 6 min. Compressor Blow residual Outdoor unit Blow residual heat heat 2 min. Indoor unit 2 min. 4-way valve Stop 2.3.2 Defrosting and Oil Return When receiving the signal of defrosting and oil return, the horizontal louver(big one) will rotate to the position where the angle is minimum and the other horizontal louver(small one) will close.
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When 9 Tindoor amb. 11 , indoor unit will operate at medium speed; When Tindoor amb.≥11 indoor fan will operate at low speed; When changing among low high, medium, and low speeds, the minimum operation time is 210 seconds. 2.6.5 If the unit has memory function, 8 heating function will be memorized. Tamb.
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Timer Change Although timer has been set, the unit still can be turned on/off by pressing ON/OFF button of the remote controller. You can also set the timer once again, and then the unit will operate according to the last setting. If timer ON and timer OFF are set at the same time during operation of the unit, the unit will keep operating at current status till OFF time reaches.
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Tamb. Tpreset +3 Tpreset Tpreset -2 High Med. Mute Fan s eed 3.8 Vertical Swing 3.8.1 Small Horizontal Louver After energization, vertical swing motor will firstly have the horizontal louver rotate anticlockwise to position O to close air outlet. If swing function has not been set after startup of the unit, horizontal louver will turn clockwise to position D1 in HEAT mode.
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This position is start point 3.10 Display 3.10.1 Operation and Mode Icons Upon energization, the unit will display all icons within 3 seconds. Under standby state, LED lamp of standby is on. If the unit is turned on by remote controller, LED lamp of operation is on; meanwhile, the mark of current running mode will be displayed. If the light button is turned off, no mark will be displayed.
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● Outdoor Unit 1. Compensation function of input parameters According to the structure of wall-mounting unit, considering the comfortability for operation, indoor ambient temperature when the compressor is at OFF status is higher than set temperature under heating mode. 2. Control of detecting the availability of parameters For ensuring the safety and reliability of operation, please insert the outdoor discharge temperature sensor into the corresponding temperature sensor bushing to make sure that the control system can detect system discharge temperature accurately.
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11.2 Under cooling or drying mode, if T <6, the operation frequency of compressor may increase or decrease; inner tube 11.2.1 If the unit is stopped because of freeze protection for 6 times successively, it can’t resume operation automatically and the malfunction will be displayed continuously, which can only be resumed by pressing ON/OFF button.
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Space to the ceiling 15cm Above Space to the wall 15cm Above 15cm Above Space to the wall 300cm Above Above Air outlet side Space to the floor The dimensions of the space necessary for proper ● installation of the unit include the minimum permissible distances to adjacent parts.
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Wall Wall Mark on the middle of it Gradienter Space Space to the to the wall wall above above Right Left Ф55 Ф55 (Rear piping hole) (Rear piping hole) Outdoor Indoor Wall pipe Seal pad outlet pipe of indoor unit outlet pipe of indoor unit drain hose...
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External connection Gas side pipe electric wire Liquid side piping Tailing 2 Gas side piping Tailing 1 Liquid side insulation Piping insulation Finally wrap it Fig.3 Water drainage pipe with tape Left Left rear Right Right rear Fig.4 Fixing hook Mounting plate Mounting...
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Start Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted? Insert the temperature sensor tightly M alfunction is eliminated. Is there short circuit due to tri-pover of the pa rts? Make the parts upright Malfunction is eliminated.
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Start Pull the blade by hand under de-energization status Adjust the motor and Whether the blade assembly to let blade can operate the motor can operate smoothly smoothly Is malfunction eliminated Check whether the Reinsert the wiring wiring terminal between terminal of indoor fan indoor fan and main board is loose...
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C5 is displayed on the unit. Install a matching Is there jumper cap on the jumper cap . controller? Is the malfunction eliminated? Re-insert the jumper Is the jumper cap inserted incorrectly or improperly? Is the malfunction eliminated? Replace the jumper Is the malfunction eliminated?
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Indoor unit communication indicator sketch:...
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Poor contact of any line may lead to communication malfuntion. Is there incorrect match between the main board and the display panel or between the indoor and outdoor boards? Is there incorrect connection? Notice: 1. Please make sure the mainboard is qualified before replacement. Please take following test before maintenance: a.
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Turn on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor Fault with the voltage Replace the control testing circuit on Voltage higher than 200V? panel AP1 control panel AP1 Measure the AC voltage between terminal L and N on wiring board XT(power supply)
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Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring terminal L and N machine has run for restore it to board XT is within a period of time?
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Anti-high temperature, overload protection Normal protection, please use If the outdoor ambient temperature is it after improve the outdoor higher than 53 ºC? ambient temperature After the unit de- energized for 20min Improve the If the radiating of outdoor radiating environment of and indoor unit is well? unit...
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Energize the unit and start it If the stop time is not enough and the If the stop time of compressor high and low pressure of system is not is more than 3min? balance , please start it after 3min Improve the connection situation If the compressor wire COMP(UVW) is of control board AP1 and...
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Synchronism Synchronism after energize the unit occurred during and start it operation Check if the fan Replace fan If the stop time of If the outdoor fan works terminal OFAN is capacitor C1 compressor is more than normally? connected well 3min Replace Improve the radiating...
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After the unit de-energized for 20min If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmic Connect wire If the wiring terminal FA of electron well with wiring expansion is well connected? diagram The resistance value of firs t 4 l e ad fo ot an d th e...
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Start Check the connection wire of reactor (L) of outdoor unit and PFC capacity Replace connection If there is damaged If the malfunction is wire with circuit short circuit removed? diagram Remove PFC capacity and test resistance of two terminals Capacity is Re-energize short...
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Start If the unit is operation normal before malfunction Check connection wire of indoor and outdoor unit with circuit diagram Check built- in wiring of Connection indoor and correct? outdoor unit Malfunction of Check connection circuit is If the wiring is wire of indoor and detected with outdoor unit with...
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