High Wall EVHC 09 to 12 DSAAAR

Transcription

1 High Wall EVHC 09 to 12 DSAAAR SERVICE MAUAL EVHC-09 / EVHC-12 SM-EVHC-D-09-12GB

2 COTETS Safety Cautions...1 Operation of wireless remote control...4 Emergency operation...9 Product Specifications...10 Part name...12 Dimensions...13 Schematic Diagram...15 PCB function manual and operation method...2 Appending data... Refrigerant sysem diagram... Installation... Troubleshooting Guide... Disassembly... Exploded View... Replacement Parts List... Appendix

3 Safety Cautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage to properties only. Meanings of symbols used in this manual are as shown below. Be sure not to do. Be sure to follow the instruction. Earth: The ground be connected! Be sure to pull out the power plug when not using the air conditioner for a long time. If not, please ask the qualified personnel to install. Furthermore, don't connect each wire to the gas pipe, water pipe, drainage pipe, drainage pipe or any other improper places. Otherwise, the accumulated dust may cause fire or electric shock. Select the most appropriate temperature. Keep room cooer than outside about 5 degree. Don't leave windows and doors open for a long time while operating the air conditioner. It can preclude the electricity wasted. It can decrease the air conditioning capacity. 123

4 For re-installation of the installed product, always contact a dealer or an authorized service center. Do not install, remove, or re-install the unit by yourself. There is risk of fire, electric shock, explosion, or injury. There is risk of fire, electric shock, explosion, or injury. Be cautious when unpacking and installing the product. For installation, always contact the dealer or an Authorized service center. Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator. Do not install the product on a defective installation stand. There is risk of fire, electric shock, explosion, or injury. Be sure the installation area does not deteriorate with age. It may cause injury, accident, or damage to the product. If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury. 124

5 Don't place a space heater near the air conditioner. Keep combustible spray away from the units more than 1m. Or CO toxicosis may occur for imcomplete burning. The airflow direction can be adjusted appropriately.at operating, adjust the vertical airflow direction by adjusting the louvers of upward/downward direction. And then, hold two ends of left and right louver to adjust the horizontal airflow. It can cause afire or explosion. Don't insert your hands or stick into the air intake or outlet vents. Louver of left/right direction Louver of upward/ downward direction. Don't apply the cold wind to the body for a long time. Otherwise it will cause accident. Don't blow the wind to animals and plants directly. It can cause a bad influence to them. It can cause the health problems. Splashing water on the air conditioner can cause an electric shock and malfunction. Don't use the air conditioner for other purposes, such as drying clothes, preserving foods, etc. 125

6 Operation of wireless remote control ote: There is no fan display shown on the front panel of the indoor unit 126

7 Operation of wireless remote control in This DR function or Cooling only operates mode and when should unit be is environment when used to dry high indoor humidity coil to indoor mould growing the coil. prevent an To set Icon this will function be displayed press Below LCD button, controller. When this function is and remote is turned off at the remote controller the unit indoor of time fan then will will continue turn off.if to you operate press for the period fan Below is running button whilst the unit is turned off and 127

8 Operation of wireless remote control Remote control Press SWIG UP AD DOW BUTTO this button, to set up swing angle, which circularly changes as below: OFF This remote is an controller universal sends use remote the following controller. threeif kinds unit will of be: status that the swing status of main When down, the if turn guide off the louver Swing, start the to air swing guide up louver and will stop at current position. and which down indicates between the that guide all louver five positions. swings up TIMER O TIMER O BUTTO TIMER OFF Timer and display, On setting: signal Signal will ìoî conceal, will blink numerical section will become the timer the on by pressing setting status. During 5 seconds blink, or time value of numerical button section, to adjust every the press increased of that or decreased button, the 1 value minute. will Hold be pressing it quickly change, or button, the way 2 seconds of change later, During the initial 2.5 seconds, ten numbers is: change the one in place the one is constant, place of ten minute, numbers then change seconds in speed the tens and place carry. of During minute 5s at blink, 2.5 press succeeds. the Timer The Timer button, On the has timer been setting repress the timer On button, the Timer up, On Timer, will please be canceled. adjust Before the Clock setting to the the current actual time. TIMER OFF BUTTO Once TIMER press OFF this setup, key in to which enter case into the The TIMER method OFF of setting icon will is the blink. as for TIMER O. same To unit) turn on the or display off press panel(indoor button on the remote the controller. light which If the light is be function displayed a panel of the remote controller the LCD remote When pressing controller - and will + be together locked.to the together release lock again. function press - and + When button unit simultaneously isoff, press MODE to switch and - between and 128

9 Operation of wireless remote control Guide for operation- General operation 1. After powered on, press O/OFF button, the unit will start to run.(ote: When it is powered off, the guide louver of main unit will close automatically.) 2. Press MODE button, select desired running mode, or press COOL or HEAT mode to enter into the corresponding operation directly. 3. Pressing +or - button, to set the desired temperature. (It is unnecessary to set the temp. at AUTO mode.) 4. Pressing FA button, set fan speed, can select AUTO FA, LOW, MID and HIGH. 5. Pressing button, to select the swing. Guide for operation- Optional operation 1. Press SLEEP button, to set sleep. 2. Press TIMER O and TIMER OFF button, can set the scheduled timer on or timer off. 3. Press LIGHT button, to control the on and off of the displaying part of the unit (This function may be not available for some units). 4. Press TURBO button, can realize the O and OFF of TURBO function. Introduction for special function About AUTO RU When AUTO RU mode is selected, the setting temperature will not be displayed on the LCD, the unit will be in accordance with the room temp. automatically to select the suitable running About method turbo function and to make ambient comfortable. If start this function, the unit will run at super-high fan speed to cool or heat quickly so that About the ambient swing temp. up approachs and down the preset temp. as soon as possible. 1. Press swing up and down button continuously more than 2s,the main unit will swing back and forth from up to down, and then loosen the button, the unit will stop swinging and present position of guide louver will be kept immediately. 2. Under swing up and down mode, when the status is switched from off to, if press this button again 2s later, status will switch to off status directly; if press this button again within 2s,the change of swing status will also depend on the circulation sequence stated above. 129

10 Operation of wireless remote control About new function of defrosting It indicates: after starting this function by remote controller and the unit has been under defrost status, If turn off the unit by remote controller, the unit will not stop defrosting until it is finished; if change setting mode by remote controller, the function,which is set last time, won't be carried out until defrosting finished. Operation of this function on or off: If remote controller is under off status, press mode button and blow b utton simultaneously in order to enter or cancel this new function. If the unit is under defrost mode, dual eight position on remote controller will display H1.If switch to heat mode, the position will display H1, which flickers for 5s, in which case, press +/- button, H1 will disappear and setting temp. be displayed. Changing batteries and notices After remote controller is powered on, the new defrost function will be defaulted to be closed OTE: Attach the back cover of wireless remote control. (As show in figure) Fi g.1 When changing the batteries, do not use the old or different batteries, Slightly to press the place with, along the arrowhead direction to push the back cover of wireless remote control. (As show in figure) Take out the old batteries. (As show in figure) Insert two new AAA1.5V dry batteries, and pay attention to the polarity. (As show in figure) otherwise, it can cause the malfunction of the wireless remote control. If the wireless remote control will not be used for a long time, please take them out, and don't let the leakage liquid damage the wireless remote control. The operation should be in its receiving range. It should be placed at where is 1m away from the TV set or stereo sound sets. If the wireless remote control can not operate normally, please take them out, after 30s later and reinsert, if they cannot normally run, please change them. Sketch map for changing batteries Fig.2 130

11 Emergency operation Displayer indicator light control of indoor unit It's a special selective buttonfor the users,who are not accustomed to the light at sleeping. Get the displayer indicator light on: When setting the light function,the mark will display on the remote controller screen by pressing this button. In which case,the dissplayer indicator light will be on if the AC receives this signal. Get the displayer indicator light off: If cancel the light function,the mark will disapper on the remote controller screen by pressing this button. In which case, the displayer indicator light will be off if the AC receives this signal. Emergency operation If the wireless remote control is lost or broken, please use the manual switch button. At this time, the unit will run at the Auto mode, but the temperature and fan speed cannot be changed. The operation was shown as below: To open the panel, the manual switch is on the displayer box. Turn on the unit: At unit turned off, press the button,the unit will run at Auto mode immediately.the microcomputer will accord to the indoor temperature to select (Cooling, Heating, Fan) and obtain the comfortable effect. Fig.3 Manual switch Turn off the unit: At unit turned on, press the button, the unit will stop working. 131

12 Product Specifications Product Specifications Model Function Rated Voltage Rated Frequency Total Capacity (W/Btu/h) Power Input (W) Rated Input (W) Rated Current (A) Air Flow Volume (m 3 /h) (H/M/L)** Dehumidifying Volume (l/h) EER / C.O.P (W/W) Energy Class EVHC 09 DSAAAR COOLIG HEATIG COOLIG HEATIG V V 80/50/25 80/53/25 95/68/25 95/74/ /2500/ /9000/ /2800// /9386/ /3500/ /12000/ /4000/ /13650/ /735/ /745/ /1060/ /1100/ /3.4/ /3.69/ /3.3/4.14 3/3.64/3.97 A/A EVHC 12 DSAAAR A/A Model of Indoor Unit EVKC 09 DS EVKC 12 DS Fan Motor Speed (r/min) (H/M/L) (1260)/1050/920/ 730 (1320)/1200/1100 /950 (1260)/1070/900/730 Output of Fan Motor (w) Input of Heater (w) Fan Motor Capacitor (uf) Fan Motor RLA(A) Fan Type-Piece Diameter-Length (mm) Evaporator 10 one Cross flow fan - 1 φ Aluminum fin-copper tube 20 / Cross flow fan - 1 φ92 X 645 Aluminum fin-copper tube Indoor unit Pipe Diameter (mm) Row-Fin Gap(mm) Coil length (l) height (H) coil width (L) Swing Motor Model Output of Swing Motor (W) Fuse (A) Sound Pressure Level db (A) (H/M/L) Sound Power Level db (A) (H/M/L)*** Dimension (W/H/D) ( mm) Dimension of Package(W/H/D)(mm) X264X X25.4X267 MP24AA (54)/51/48/ et Weight /Gross Weight (kg) 9 / 12 10/13 Φ7 MP24AA 1.5 PCB 3.15A (40)/37/31/23 (54)/50/46/ PCB 3.15A (41)/37/33/

13 Product Specifications Outdoor unit Connecti on Pipe Model of Outdoor Unit Compressor Manufacturer/trademark Compressor Model Compressor Type L.R.A. (A) Compressor RLA(A) Compressor Power Input(W) Overload Protector Throttling Method Starting Method Working Temp Range (ºC) Condenser Pipe Diameter (mm) Rows-Fin Gap(mm) Coil length(l) x height(h) x coil width(l) Fan Motor Speed (rpm) (H/M/L) Output of Fan Motor (W) Fan Motor RLA(A) Fan Motor Capacitor (uf) Air Flow Volume of Outdoor Unit Fan Type-Piece Fan Diameter (mm) Defrosting Method Climate Type Isolation Moisture Protection Permissible Excessive Operating Pressure for the Discharge Side(MPa) Permissible Excessive Operating Pressure for the Suction Side(MPa) Sound Pressure Level db (A) (H/M/L) Sound Power Level db (A) (H/M/L) Dimension (W/H/D) (mm) EVJC 09 DS EVJC 12 DS MITSUBISHI MITSUBISHI KB092FHBMC KB092FHBMC single-rotor single-rotor one 222KT-XH-2P-400mm Capillary throttling Capillary throttling Transducer starting Transducer starting -15ºC T 43ºC -10ºC T 43ºC Aluminum fin-copper tube Aluminum fin-copper tube X508X22 608/498/22 830±20 880± / / Axial fan -1 Axial fan Auto defrost Auto defrost T1 T1 I IP24 I IP X260X X260X X360X X360X580 35/40 36/41 R410A / 0.8 R410A / Liquid Pipe (mm) Φ6(1/4") Φ6(1/4") Gas Pipe (mm) Φ9.52(3/8") Φ12(1/2") Height (m) 5 5 Length (m) Dimension of Package (L/W/H)(mm) et Weight /Gross Weight (kg) Refrigerant Charge (kg) Length (m) Gas additional charge(g/m) Outer Diameter Max Distance

14 Part name Indoor unit Front Panel Air in Power cable Wrapping Tape Filter Guide louver Air out Wall Pipe Set Temp Cooling DR Wireless remote control LED displayer Heat Run Remote control window Air in Outdoor unit Connection pipe Drainage hose Air out 134

15 x Dimensions Dimensions Indoor Unit W Air inlet H Tube exit D Ceiling Left Right Wall-Mounting Plate W Q R S A B x H Hole, the position should be confirmed by client or the erector Hole, the position should be confirmed by client or the erector Model W( ) H( ) D( ) Mounting Plate Hole A B Q R S X EVKC 09 DS EVKC 12 DS

16 Dimensions Outdoor Unit W D2 D1 D H W2 W1 Unit:mm Over 30cm Over 60cm Over 60cm Over 30cm Bolt ut Wrench Model EVJC 09 DS EVJC 12 DS W(mm) W1(mm) W2(mm) H(mm) D(mm) D1(mm) D2(mm)

17 Schematic Diagram Schematic Diagram Indoor Unit 137

18 138 Schematic Diagram Outdoor Unit

19 Schematic Diagram Printed Circuit Board Connector Wiring Diagram IDOOR UIT TOP VIEW BOTTOM VIEW 139

20 Schematic Diagram TOP VIEW Serial o. ame of circuit Testing contents 1 Commutating filter wave circuit Before commutating, voltage: AC current; After commutated, voltage: DC current Communication circuit Stabilized voltage supply circuit Buzzer circuit Displaying board displaying circuit Sensor detection temperature circuit Jumper cap ciruit Fan motor feedback and driving circuit Crystal oscillatory circuit Reset circuit Communication voltage and communication wave shape Chip power supply 5V; relay power supply 12V Buzzer sound Displaying the numerical design correctness Input IC pin voltage value Whether jumper cap is installed or whether it is correctly installed Impulse waveform and impulse voltage Waveform and voltage Reset pin voltage and waveform BOTTOM VIEW ote: unnoted that the pins are suspending PI Definition Indoor unit pin definition PI 1 5V power supply Vcc 22 2 AD referrence voltage 23 3 AD referrence ground 24 4 PWM output 25 5 Reset output 26 6 Motor feedback input 27 7 Remote control receiving 28 8 Buttons input 29 9 Buzzer output Relay control Communication sending Communication receiving Display board code control S Display board code control S Ground 36 Display board code control B 16 Display board code control S3 37 Display board code control A 17 Display board code control S4 38 IIC Bus data port 18 Reset input 39 IIC 19 Surge signal input Surge singal output Ground 42 Definition Retain the swing motor control Pin1 in advance Retain the swing motor control Pin2 in advance Retain the swing motor control Pin3 in advance Retain the swing motor control Pin4 in advance Upper and lower swing motor control Pin 1 Upper and lower swing motor control Pin 2 Upper and lower swing motor control Pin 3 Upper and lower swing motor control Pin 4 Cooling/heating selection port Display board code control G Display board code control F Display board code control E Display board code control D Display board code control C Bus clock port Indoor ambient temperature sampling port Indoor tube temperature sampling port Quick test port (retain the temperature sampling port) 140

21 Schematic Diagram Outdoor Unit TOP VIEW BOTTOM VIEW 141

22 Schematic Diagram TOP VIEW Serial o. ame of circuit Testing spot Testing content 1 Commutating filter circuit Before commutating voltage AC current; After commutating voltage DC current 2 PFC 3 4 circuit Indicator circuit Fan motor s four-way valve control circuit 5 Current of power on testing PTC circuit R212 underneath multimeter black pen contact with U406 radiator multimeter red pen contact with R212 underneath R407right side multimeter black pen contact with U404 radiator multimeter red pen contact with R407 right side Bus bar voltage, working voltage 15V Indicator on/off times Output voltage:12v temperature 6 Strong current filter cuircuit Voltage of R101 both sides After filtered the waves, the voltage AC normal value is power supply voltage red meter contacts with 7 Switch power supply circuit IPM15V 8 Compressor driving circuit The pen of multimeter black meter contacts with U404 radiator The pen of multimeter D304 negative port The pen of multimeter red meter contacts with C405 underneath The pen of multimeter red meter contacts with Pins 7,8 of U4 R201 left side The pen of multimeter black meter contacts with U404 radiator The pen of multimeter red meter contacts with R201 right side Chips power supply:5v Chips power supply: 3.3V Bus bar voltage The normal value is power supply voltage X Sensor detecting temperature circuit Crystal oscillatory circuit Reset circuit R407 right side The pen of multimeter black meter contacts with U404 radiator The pen of multimeter red meter contacts with R407 right side Both sides of R3 The pen of multimeter black meter contacts with U404 radiator The pen of multimeter red meter to test the upper side and lower side voltage of R3 C17 underneath The pen of multimeter black meter contacts with U404 radiator The pen of multimeter red meter contacts with C17 lower side Input IC pin voltage value Waveform and voltage Reset voltage and wave normal value: once power on, instantly there is 200 millisecond lower voltage, after that is 3.3V all along 12 Communication circuit C503 underneath The pen of multimeter black meter contacts with U404 radiator The pen of multimeter red meter contacts with C503 underneath Communication receiving signal detection ormal value: in this point, there is inerratic change for voltage C524 underneath The pen of multimeter black meter contacts with U404 radiator The pen of multimeter red meter contacts with C524 underneath Communication sending singal detection ormal value: in this point, there is inerratic change for voltage 142

23 Schematic Diagram BOTTOM VIEW PI Definition PI 1 JTAG pin 49 2 Memory 50 3 Digital ground 51 25/35 Models selection port V 53 5 Fan motor PWM output V 6 Module protection signal input 56 7 Memory 58 8 Phase-locked loop V 9 Phase-locked loop V 61 JTAG Pin 12 Power supply control output 62 JTAG Pin 13 Auxiliary heat control output Four-way valve control output V Zero crossing detection signal input Outdoor unit pin definition Communication sending Communication receiving Digital ground V Indicator output PFCProtection signal input PFC driving level output Indicator output Electronic expansion valve driving signal PWM Signal output Digital ground V V V 31 PWMSignal output Electronic expansion valve driving signal PWM Signal output Digital ground V PWM Signal output V 37 PWM Signal output Electronic expansion valve driving signal 94 JTAG Pin 39 PWM Signal output 96 JTAG Pin V 97 Quick test 46 Digital ground V V 99 JTAG Pin 48 Fan motor control singal output 100 JTAG Pin Definition Overload protection singal input Digital ground Fan motor speed feedback input Digital ground Electronic expansion valve driving signal Digital ground U phase current sampling input W phase current sampling input V phase current sampling input Air exhaust sampling input Ambient temperature sampling input Air intake sampling input Tube temperature sampling input Current sampling input Bus voltage sampling input Electronic valve temperature sampling input Digital ground Digital ground Indicator output Crystal oscillatory pin input Crystal oscillatory pin input Digital ground Reset signal Digital ground 143

24 PCB function manual and operation method PCB function manual and operation method 1. Temperature Parameters Indoor preset temperature (T preset ) Indoor ambient temperature (T amb. ) 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag; if the compressor is in operation before de-energization, the compressor will be started with a 3-minute lag; and once started, the compressor will not be stopped within 6 minutes regardless of changes in room temperature; (1) Cooling Mode Working conditions and process of cooling When T amb.t preset, the unit will enter cooling operation, in which case the indoor fan, the outdoor fan and the compressor will work and the indoor fan will run at preset speed. When T amb.t preset -2, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will run at preset speed. When T preset -2< T amb.< T preset +1, the unit will remain at its previous state. Under this mode, the four-way valve will be de-energized and temperature can be set within a range from 16 to 30. If the compressor is shut down for some reason, the indoor fan and the swing device will operate at original state. T preset T preset -2 T amb 6 minutes 3 minutes 6 minutes Start cooling Original working state Stop cooling Compressor Outdoor fan Indoor fan Preset wind speed Run Stop Protection Antifreeze protection Under cooling and dehumidifying mode, 6 minutes after the compressor is started: If T evap.2, the compressor will operate at reduced frequency. If T evap.-1 is detected for durative 3 minutes, the compressor will stop, and after 30 seconds, the outdoor fan will stop; and under cooling mode, the indoor fan and the swing motor will remain at the original state. If T evap. 6 and the compressor has remained at OFF for at least 3 minutes, the compressor will resume its original operation state. Total current up and frequency down protection If I total A, frequency rise will be allowed; if I total B, frequency rise will not be allowed; ifi total C, the compressor will run at reduced frequency; and if I total D, the compressor will stop and the outdoor fan will stop with a time lag of 30s. (2) Dehumidifying Mode Working conditions and process of dehumidifying If T amb.t preset, the unit will enter cooling and dehumidifying mode, in which case the compressor and the outdoor fan will operate and the indoor fan will run at low speed. If T preset -2T amb.t preset, the compressor remains at its original operation state. If T amb.< T preset -2, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will operate at low speed. 144

25 Operation Protection Protection is the same as that under the cooling mode. (3) Heating Mode Working conditions and process of heating If T amb. T preset +2, the unit enters heating mode, in which case the four-way valve, the compressor and the outdoor fan will operate simultaneously, and the indoor fan will run at preset speed in the condition of preset cold air prevention. If T amb. T preset +5, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will stop after 60-second blow at low speed If T preset +2<T amb.< T preset +5, the unit will maintain its original operating status. Under this mode, the four-way valve is energized and temperature can be set within a range of The operating symbol, the heating symbol and preset temperature are revealed on the display. Condition and process of defrost When duration of successive heating operation is more than 45 minutes, or accumulated heating time more than 90 minutes, and one of the following conditions is reached, the unit will enter the defrost mode after 3 minutes. a. T outdoor amb. A, T outdoor tube W ; b. A T outdoor amb. <B, T outdoor tube X ; c. B T outdoor amb. <C, T outdoor tube ; d. T outer amb. <C, T outer tube Z At that time, the indoor fan stops and the compressor stops, and after 30 seconds the outer fan will stop, and then after 30 seconds, the four-way valve will stop. After 30 seconds, the compressor is initiated for raising the frequency to defrost frequency. When the compressor has operated under defrost mode for 7.5 minutes, or T outer tube E, the compressor will be converted to 53Hz operation. After 30 seconds, the compressor will stop. And after another 30 seconds, the four-way valve will be opened, and after 60 seconds, the compressor and the outer fan will be started, the indoor fan will run under preset cold air prevention conditions, and H1 will be displayed at temperature display area on the display panel. Defrost frequency is 70Hz. 3.Protection Cold air prevention The unit is started under heating mode (the compressor is O): In the case of T indoor amb. <24 : if T tube 40 and the indoor fan is at stop state, the indoor fan will begin to run at low speed with a time lag of 2 minutes. Within 2 minutes, if T tube40, the indoor fan also will run at low speed; and after 1-minute operation at low speed, the indoor fan will be converted to operation at preset speed. Within 1-minute low speed operation or 2-minute non-operation, if T tube42, the fan will run at present speed. In the case of T indoor amb. 24: if T tube 42, the indoor fan will run at low speed, and after one minute, the indoor fan will be converted to preset speed. Within one-minute low speed operation, if T tube42, the indoor fan will be converted to preset speed. ote: T indoor amb. indicated in 1 and 2 refers to, under initially heating mode, the indoor ambient temperature before the command to start the compressor is performed according to the program, or after the unit is withdrawn from defrost, the indoor ambient temperature before the defrost symbol is cleared. Total current up and frequency down protection If the total current I total W, frequency rise will be allowed; if I total X, frequency rise will not be allowed; if I total, the compressor will run at reduced frequency; and if I total Z, the compressor will stop and the outdoor fan will stop with a time lag of 30s. (4) Fan Mode Under the mode, the indoor fan will run at preset speed and the compressor, the outdoor fan, the four-way valve and the electric heater will stop. Under the mode, temperature can be set within a range of (5) AUTO Mode Working conditions and process of AUTO mode Under AUTO mode, standard cooling temperature T preset is 25 and standard heating temperature T preset is 18. a. Once energized, if T amb. 20, the unit will be started under heating mode; if 20< T amb.< 25, the unit will run under fan mode and the run indicator will be bright; and if T amb. 25, the unit will be started under cooling mode. 145

26 Operation a. Under AUTO mode, if T amb. T preset is detected, the unit will select to run under cooling mode, in which case implicit preset temperature is 25; if T amb. T preset -2, the compressor will stop, the outdoor fan will stop with a time lag of 1 minute, and the indoor fan will run at preset speed; and if T preset (-2)< T amb.< T preset, the unit will remain at its original state. b. Under AUTO mode, if T amb. T preset +2 is detected, the unit will select to run under heating mode, in which case implicit preset temperature is 18; if T amb. T preset +5, the compressor will stop, the outdoor fan will stop with a time lag of 1 minute, and the indoor fan will run under the mode of residue heat blowing; and if T preset +2< T amb.< T preset +5, the unit will remain at its original state. The cooling-only unit will run under fan mode. c. Under AUTO mode, if 20< T amb.< 25, the unit will remain at its original state. 2.Protection a. In cooling operation, protection is the same as that under the cooling mode; b. In heating operation, protection is the same as that under the heating mode; c. When ambient temperature changes, operation mode will be converted preferentially. Once started, the compressor will remain unchanged for at least 6 minutes. (6) Common Protection Functions and Fault Display under COOL, HEAT, DR and AUTO Modes Overload protection T tube: measured temperature of outdoor heat exchanger under cooling mode; and measured temperature of indoor heat exchanger under heating mode. 1) Cooling overload a. If T tube 52, the unit will return to its original operation state. b. If T tube 55, frequency rise is not allowed. c. If T tube 58, the compressor will run at reduced frequency. d. If T tube 62, the compressor will stop and the indoor fan will run at preset speed. 2) Heating overload a. If T tube 52, the unit will return to its original operation state. b. If T tube 55, frequency rise is not allowed. c. If T tube 58, the compressor will run at reduced frequency. d. If T tube 62, the compressor will stop and the indoor fan will blow residue heat and then stop. Exhaust temperature protection of compressor If exhaust temperature 98, frequency is not allowed to rise. If exhaust temperature 103, the compressor will run at reduced frequency. If exhaust temperature 110, the compressor will stop. If exhaust temperature 90 and the compressor has stayed at stop for at least 3 minutes, the compressor will resume its operation. Communication fault If the unit fails to receive correct signals for durative 3 minutes, communication fault can be justified and the whole system will stop. Module protection Under module protection mode, the compressor will stop. When the compressor remains at stop for at least 3 minutes, the compressor will resume its operation. If module protection occurs six times in succession, the compressor will not be started again. Overload protection If temperature sensed by the overload sensor is over 115, the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds. If temperature is below 95, the overload protection will be relieved. If voltage on the DC bus is below 150V or over 420V, the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds. When voltage on the DC bus returns to its normal value and the compressor has stayed at stop for at least 3 minutes, the compressor will resume its operation. Faults of temperature sensors 146

27 Operation Designation of sensors Faults The sensor is detected to be open-circuited or short-circuited for successive 30 Indoor ambient temperature seconds The sensor is detected to be open-circuited or short-circuited for successive 30 Indoor tube temperature seconds The sensor is detected to be open-circuited or short-circuited for successive 30 Outdoor ambient temperature seconds The sensor is detected to be open-circuited or short-circuited for successive 30 Outdoor tube temperature seconds, and no detection is performed within 10 minutes after defrost begins. After the compressor has operated for 3 minutes, the sensor is detected to be Exhaust open-circuited or short-circuited for successive 30 seconds. After the compressor has operated for 3 minutes, the sensor is detected to be Overload open-circuited or short-circuited for successive 30 seconds. 3. Other Controls (1) O/OFF Press the remote button O/OFF: the on-off state will be changed once each time you press the button. (2) Mode Selection: Press the remote button MODE, then select and show in the following ways: AUTO, COOL, DR, FA, HEAT, AUTO. (3) Temperature Setting Option Button Each time you press the remote button TEMP+ or TEMP-, the setting temperature will be up or down by 1. Regulating Range: 16~30, the button is useless under the AUTO mode. (4) Time Switch ou should start and stop the machine according to the setting time by remote control. (5) 5. SLEEP State Control a. When the air conditioner is under the mode of COOL, DR, and the SLEEP mode has been set well, after the SLEEP state keeps about 1 hour, the pre-setting T will raise 1, and it will raise 1 again after 2 hours, so it raise 2 in 2 hours, then it will run on at the setting temperature and wind speed. b. When the air conditioner is under the mode of HEAT, and the Timer has been set well, after the SLEEP state keeps about 1 hour, the pre-setting T will reduce 1, and it will reduce 1 again after 2 hours, so it reduce 2 in 2 hours, then it will run on at the setting temperature and wind speed. c. The setting temperature keeps the same under the FA mode and AUTO mode. (6) Indoor Fan Control The Indoor Fan can be set as HIGH, MED, LOW by remote control, and the Indoor Fan will be respectively run at high, medium, low speed. It will also be set as AUTO, and the Indoor Fan is as the followings at the automatic wind speed. Cooling mode: T ring T setting + 2, high speed; T setting - 2T ringt setting + 2, medium speed; T ring T setting 2, low speed. Sending wind mode: : T ring T setting + 4, high speed; T setting +2 T ring T setting + 4, medium speed; T ring T setting +2, low speed. Moisture removal mode: force to be set as the low speed Heating mode: T ring T setting + 1 high speed; T setting +1T ringt setting + 5, medium speed; T ring T setting + 2, low speed. (7) Buzzer Control The buzzer will send a Di sound when the air conditioner is powered up or received the information sent by the remote control or there is a button input, the single tube cooler doesn t receive the remote control O signal under the mode of heating mode. (8) Auto button If the controller is on, it will stop by pressing the button, and if the controller is off, it will be automatic running state by pressing the button, swing on and light on, and the main unit will run based on the remote control if there is remote control order. (9) Up-and-Down Swinging Control When power on, the up-and-down motor will firstly move the air deflector to o counter-clockwise, close the air outlet. After starting the machine, if you don t set the swinging function, heating mode and auto-heating mode, the up-and-down air deflector will move to D clockwise; under other modes, the up-and-down air deflector will move to L1. If you set the swinging function when you start the machine, then the wind blade will swing between L and D. The air deflector has 7 swinging states: Location L, Location A, Location B, Location C, Location D, Location L to Location D, stop at any location between L-D (the included angle between L~D is the same). The air deflector will be closed at 0 Location, and the swinging is effectual only on condition that setting the swinging order and the inner fan is running. The indoor fan and compressor may get the power when air deflector is on the default location. 147

28 Operation Heating angle Cooling angle (10) Display Operation pattern and mode pattern display All the display patterns will display for a time when the power on, the operation indication pattern will display in red under standby status. When the machine is start by remote control, the indication pattern will light and display the current operation mode (the mode light includes: Cooling, heating and dehumidify). If you close the light key, all the display patterns will close. Double-8 display According to the different setting of remote control, the nixie light may display the current temperature (the temperature scope is from 16 to 30 ) and indoor ambient temperature. The heating and air supply temperature will display 25 under auto-mode, the temperature will display 18 under the heating mode, and the temperature will display H1 under the defrosting mode.(if you set the fahrenheit temperature display, the nixie light will display according to fahrenheit temperature) (11) Protection function and failure display E2: Freeze-proofing protection E4: Exhausting protection E5: Overcurrent protection E6: Communication failure E8: Overload protection F1: Indoor ambient sensor start and short circuit (continuously measured failure in 30S) F2: Indoor evaporator sensor start and short circuit (continuously measured failure in 30S) F3: Outdoor ambient sensor start and short circuit (continuously measured failure in 30S) F2: Outdoor condenser sensor start and short circuit (continuously measured failure in 30S, and don t measure within 10 minutes after defrosted) F5: Outdoor exhausting sensor start and short circuit (continuously measured failure in 30S after the compressor operated 3 minutes) H3: Overload protection of compressor H5: Module protection PH: High-voltage protection PL: Low-voltage protection P1: ominal cooling and heating P2: Maximum cooling and heating P3: Medium cooling and heating P3: Minimum cooling and heating (12) Drying Function ou may start or stop the drying function under the modes of cooling and dehumidify at the starting status (The modes of automatism, heating and air supply do not have drying function). When you start the drying function, after stop the machine by pressing the switch button, you should keep running the inner fans for 10 minutes under low air damper (The swing will operate as the former status within 10 minutes, and other load is stopped), then stop the entire machine; When you stop the drying function, press the switch button will stop the machine directly. When you start the drying function, operating the drying button will stop the inner fans and close the guide louver. (13) Memory function when interrupting the power supply Memory content: mode, swing function, light, set temperature and wind speed. After interrupted the power supply, the machine will start when recovering the power according to the memory content automatically. If the last remote control command has not set the timed function, the system will remember the last remote control command and operate according it. If the last remote control command has set timed function and the power supply is interrupted before the timed time, the system will remember the timed function of the last remote control command, the timed time will recounted form power on. If the last remote control command has set timed function, the time is out and the system is start or stop according to the set time when the power supply is interrupted, the system will remember the operation status before the power supply was interrupted, and do not carry out timed action; The timed clock will not remembered. 148

29 Appending data data Table showing operation frequency limits for cooling and heating Outdoor Relative Humidity 37% Outdoor Relative Humidity 86% Capacity Change Ratio(%) Indoor Wet Bulb Temperature( ) Capacity Change Ratio(%) Indoor Wet Bulb Temperature( ) Compressor Frequency(Hz) Compressor Frequency(Hz) Performance date for both cooling and heating COOLIG: Temperature condition Standard Heat exchanger pipe ( C) Model pressure temp. Indoor Outdoor name P (MPa) T1 ( C) T2 ( C) 27/19 35/ HEATIG: Indoor fan mode Outdoor fan mode Compresso r revolution (rps) 09K 0.8 to to to 43 High High 50 12K 0.8 to to to 45 High High 69 Temperature condition Standard Heat exchanger pipe ( C) Model pressure temp. Indoor Outdoor name P (MPa) T1 ( C) T2 ( C) 20/ 7/6 Indoor fan mode Outdoor fan mode Compresso r revolution (rps) 09K 2.8 to to 38 2 to 4 High High 53 12K 2.8 to to 44 0 to 3 High High 74 OTES : (1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent. (Thermistor themometer) (2) Connecting piping condition : 5 m 149

30 Appending data Expanded capacity data tables for both cooling and heating Cooling Heating Capacity ratio (%) Conditions Indoor : DB27 C/WB19 C Indoor air flow : High Pipe length : 5m Outdoor temp. ( C) Capacity ratio (%) Conditions Indoor : DB 20 C Indoor air flow : High Pipe length : 5m Outdoor temp. ( C) Capacity Variation Ratio According to Pipe Length Capacity ratio (%) Standard pipe length 5m Conditions Indoor : DB27 C/WB19 C Outdoor : DB35 C/WB24 C Indoor air flow: High Capacity ratio (%) Conditions Indoor : DB27 C/WB19 C Outdoor: DB35 C/WB24 C Indoor air flow : High Maximum pipe length 10m Maximum Elevation 5m Total pipe length (m) Total Elevation (m) 150

31 Appending data Operation Characteristic Curve EVHC 09 DSAAAR Cooling Heating 6 5 Conditions Indoor : DB27 C/WB19 C Outdoor: DB35 C/WB24 C Indoor air flow : High Pipe length : 5m 220V 6 5 Conditions Indoor : DB20 C/WB15 C Outdoor: DB7 C/WB6 C Indoor air flow : High Pipe length : 5m 220V Current (A) V Current (A) V V Compressor speed (rps) V Compressor speed (rps) EVHC 12 DSAAAR Cooling Heating 6 5 Conditions Indoor : DB27 C/WB19 C Outdoor: DB35 C/WB24 C Indoor air flow : High Pipe length : 5m 220V 6 5 Conditions Indoor : DB20 C/WB15 C Outdoor: DB7 C/WB6 C Indoor air flow : High Pipe length : 5m 220V Current (A) V Current (A) V V Compressor speed (rps) V Compressor speed (rps) 151

32 Appending data oise criteria curve tables for both models Indoor side noise when blowing Outdoor side noise Low Middle High Indoor fan motor rotating speed Compressor frequency/hz 152

33 REFRIGERAT SSTEM DIAGRAM 3-Way valve Heat exchanger ( IDOOR ) Muffler 2-Way valve Compressor 4-Way valve Strainer Sub-accumulator Strainer Heat exchanger ( OUTDOOR ) Capillary Strainer Cooling Heating 153

34 Installation 1. The unit installation work must be done by qualified personnel according to the local rules and this manual 2. Before installating, please contact with local authorized maintenance center, if unit is not installed by the authorized maintenance center, the malfunction may not solveddue to discommodious contacts 3. When removing the unit to the other. place, please firstly contact with the authorized Maintenance Basic Center Requirements in the local area. For Installation Position Install in the following place may cause malfunction. If it is unavoidable contact with service center please: Indoor Unit Installation Position Selection 1. The air inlet and outlet vent should be far from the obstruction, make sure that the air can be blown through the whole room. 2. Select a position where the condensing water can be easily drained out, and the place is easily connected for outdoor unit. 3. Select a location where the children can not reach. 4. Can select the place where is strong enough to withstand the full weight and vibration of the unit. And will not increase the noise 5. Be sure to leave enough space to allow access for routine maintenance. The height of the installed location should be 250cm or more from the floor. 6. Select a place about 1m or more away from TVset or any other electric appliances. 7. Select a place where the filter can be easily taken out. 8. Make sure that the indoor unit installation should accord with installation dimension diagram requirements. 9. Outdoor Do not use Unit the Installation unit in the immediate Position surroundings Selection of a laundry a bath a shower or a swimming pool. 1. Select a location from which noise and outflow air emitted by unit will not inconvenience neighbors, animals, plants. 2. Select a location where there should be sufficient ventilation. 3. Select a location where there should be no obstructions cover the inlet and outlet vent. 4. The location should be able to withstand the full weight and vibration of the outdoor unit and permit safe installation. 5. Select a dry place, but do not expose under the direct sunlight or strong wind. 6. Make sure that the outdoor unit installation dimension should accord with installation dimension diagram, convenient for maintenance, repair. 7. The height difference of connecting the tubing within 5m, the length of connecting the tubing within 10m Important otices Place where strong heat sources, vapors, flammable gas or volatile object are emitted. Place where high-frequency waves are generated by radio equipment, welders and medical equipment. Place where a lot of salinities such as coast exists. Place where the oil (machine oil) is contained in the air. Place where a sulfured gas such as the hot spring zones is generated. Other place with special circumstance. Select a place where it is out of reach for the children. Select a place where will not block the passage and do not influence the city appearance. 154

35 Installation Safety Requirements For Electric Appliances 1. The power supply should be used the rated voltage and AC exclusive circuit, the power cable diameter should be satisfied. 2. Don't drag the power cable emphatically. 3. It should be reliably earthed, and it should be connected to the special earth device, the installation work should be operated by the professional. The air switch must have the functions of magnetic tripping and heat tripping, in order to protect the short circuit and overloading. 4. The min. distance from the unit and combustive surface is 1.5m. 5. The appliance shall be installed in accordance with national wiring regulations. 6. An all-pole disconnection switch having a contact separation of at least 3mm in all poles ote: Make sure that the Live wire or Zero line as well as the earth wire in the family power socket can not be wrong connected, there should be reliable and no short circuit in the diagram. wrong connection may cause fire. Earthing requirements should be connected in fixed wiring. 1. Air conditioner is type I electric appliance, thus please do conduct reliable earthing measure. 2. The yellow-green two-color wire in air conditioner is earthing wire and cannot be used for other propose. It cannot be cut off and be fix it by screw, otherwise it would cause electric shock. 3. The earth resistance should accord to the ational Criterion. 4. The user power must offer the reliable earthing terminal. Please don't connect the earthing wire with the following place: Tap water pipe. Gas pipe. Contamination pipe. Other places that professional personnel consider them unreliable. 5. The model and rating values for fuses according the silk print on fuse cover or related PCB board. 155

36 Installation Install the rear panel 1.Always mount the rear panel horizontally. Due to the water tray of indoor unit has been adopted the both-way drainage design, the outlet of water tray should be adjusted slightly down when installing, that is taking the outlet of the water tray as the center of a circle, the included angle between the evaporator and level should be 0 or more, that is good for condensing water drainage. 2.Fix the rear panel on the wall with screws. (Where is pre-covered with plastic granula) 3.Be sure that the rear panel has been fixed firmly enough to withstand the weight of an adult of 60kg, further more, the weight should be evenly shared by each screw. Install the piping hole Wall Mark on the middle of it Space to the wall above 150mm 55mm Left (Rear piping hole) 1.Make the piping hole (Ф55) in the wall at a slight downward slant to the outdoor side. 2.Insert the piping-hole sleeve into the hole to prevent the connection piping and wiring from being damaged when passing through the hole. Fig.4 Indoor Wall pipe Gradienter Space to the wall above 150mm Wall φ 55mm Right (Rear piping hole) Outdoor Seal pad Ø 55 Install the water drainage pipe 1.For well draining, the drain hose should be placed at a downward slant. 2.Do not wrench or bend the drain hose or flood its end by water. 3.When the long drainage hose passing through indoor, should wrap the insulation materials. Connect indoor and outdoor electric wires 1.Open the surface panel. 2.Remove the wiring cover. Wrenched Bent Flooded 3.Route the power connection cord and signal control wire (for cooling and heating unit only) from the back of the indoor unit and pull it toward the front through the wiring hole for connection. 4.Connect the interconnection cord to the terminal block, and then fix the cord with cord anchorge. 5.Reassemble the clampand wiring cover. 6.Recover the surface panel. yellowgreen brown 156

37 Installation OTE: After tighten the screw, slight pull the wire and confirm whether is it firm or not. 1. When connecting the electric wire if the wire length is not enough, please contact with the authorized service shop to buy a exclusive electric wire that is long enough and the joint on the wire are not allowed The electric wiring must be correctly connected, wrong connection may cause spare parts malfunction. Tighten the terminal screw in order to prevent loose. If the earth wire is wrong connection, that may cause electric shock. The cover plate must be fixed, and tighten the connection wire, if it is poor installed, that the dust, moisture may enter in or the connection terminal will be affected by outside force, Install and the will indoor cause fire unit or electric shock. The piping can be lead out from right, right rear, left External connection left rear. Gas side pipe electric wire Liquid side piping When routing the piping and wiring from the left or right side of indoor unit, cut off the tailings from the chassis in necessary(show in Fig.7) Cut off the tailings 1 when routing the wiring only; Cut off the tailings 1 and tailings 2 when routing both the wiring and piping. 2. Take out the piping from body case, wrap the piping electric wire, water pipe with tape and pull them through the piping hole (As show in Fig.8) 3. Hange the mounting slots of the indoor unit on the upper tabs of the rear panel and check if it is firm enough.(as show in Fig.9) 4. The height of the installed location should be 2. 5m or more from the floor. Install the connection pipe Align the center of the piping flare with the relevant valve. Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench refer to the following: Hex nut diameter Ф6 Ф 9.52 Ф 12 Ф 16 Ф 19 ( m) Tightening torque Indoor unit piping Spanner Fixing hook Mounting plate Fig.7 Taper nut Piping Torque wrench OTE: Firstly connect the connection pipe to indoor unit, then to outdoor unit; pay attention to the piping bending, do not damage the connection pipe; the joint nut couldn't tighten too much, otherwise it may cause leakage. Right Fig.5 Tailing 2 Tailing 1 Right rear Gas side piping insulation Finally wrap it with tape Left Left rear Liquid side Piping insulation Water drainage pipe Fig.6 Mounting baord 157

38 Installation Electric wiring Disassemble the handle on the outdoor unit right side plate. Take off cord anchorage. Connect and fix power connect cord (for cooling and heating unit,connect and fix power connect cord and signal control wire)to terminal block Fix the power connection cable with cord anchorage, (for cooling and heating unit, use the cord anchorage to fix the power connection cable and the signal control wire). Ensure wire has been fixed well. Install the handle. OTE: Wrong wiring may cause spare parts malfunction. After the cable fixed, make sure there should be a free space between the connection and connection and fixing place on the lead wire. Air purging and leakage test Handle 1. Connect charging hose of manifold valve to charge end of low pressure valve (both high/low pressure valves must be tightly shut). 2. Connect joint of charging hose to vacuum pump. 3. Fully open handle handle of Lo manifold valve. 4. Open the vacuum pump to evacuate. At the beginning, slightly loosen joint nut of low pressure valve to check if there is air coming inside. (If noise of vacuum pump has been changed, the reading of multimeter is 0) Then tighten the nut. 5. Keep evacuating for more than 15mins and make 5 sure the reading of multi-meter is pa (-76cmHg).. 6. Fully open high/low pressure valves. 7. Remove charging hose from charging end of low pressure valve. Condensate 8. Tighten bonnet drainage of low-pressure of outdoor valve. unit (As (no shown for cooling Fig.10) only) Multimeter -76cmHg Lo Handle Charging hose Low pressure valve Manifold Valve Manometer Vacuum pump Fig.8 Hi handle Charging hose The condensate and defrosting water formd during heating in the outdoor unit can be properly discharged by drainage pipe. Installation method:set the drain connection in Ø 25 hole of the chassis has been installed and then connect drainage pipe with drain nozzle,so that condensate and defrosting waer can be properly discharged Chassis Drain connection 158

39 Troubleshooting Guide Troubleshooting Guide ote: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise the unit display C5 The breaker trips at once when it is set to "O". Measure insulation resistance to ground to see if there is any leakage. Trip of breaker or blow of fuse The circuit or the part of the air conditioner has malfunction. They heat and break the insulation The breaker trips in few minutes when it is set to "O" and lead to short circuit or creepage. Measure the insulation resistance or eliminate the malfunction one by one. If the breaker itself has malfunction, then replace the breaker. o power Check power supply circuit. start up The air conditioner does not react after Power plug is not well plugged in and poor connection Check if the plug is properly plugged in and make the loose contact firm. not it is powered ( after Fuse of controller burnt out Change controller fuse conditioner can the plug is inserted, the buzzer does not sound and the remote startup has no response) The transformer connection is loose or has bad contact or the transformer has malfunction Fasten the wiring; measure the output v o l t a g e o f t h e t r a n s f o r m e r, i f i t i s incorrect, change the transformer Air Controller is broken Check remote controller The remote controller Remote controller is short of power Change batteries does not receive signals (after it is powered, the buzzer will sound, unless it has malfunction) Remote controller malfunction Receiver loose or poor connection First, press the manual switch button AUTO, if there is no response,check based on the above methods. If it runs normally after pressing the button,check again whether the installation position and the connection wire of the reception head is correct. If it is Receiver is broken correct,then replace the receiver or the remote controller. Power voltage is too low heck the voltage. If it is lower than 10 of the rated voltage, check the cause, improve the power supply condition and add the stabilized voltage power supply. 159

40 Improper set of temperature Adjust set temperature If cooling (heating) load is proper Check the forecasted load of cooling (heating) Malfunction of r e f r i g e r a n t flow The refrigerant has leakage or is insufficient Leakage between the high pressure and the low pressure inside the compressor Malfunction of four-way valve heck and fill the leakage, then vacuumize it and supplement the refrigerant as required Replace the compressor Replace the four-way valve Local block of capillary Replace the capillary Poor COOL(HEAT) operation Judge whether the system is blocked by observing the condensation of evaporator and the pressure value of the high Blockage of cooling system pressure manometer and take measures to deal with the system. Heat insulation for the connection Make sure that heat insulation for the thick and thin pipes pipes of the indoor unit and the outdoor unit is bad. is good. Heat insulation must also be provided for the joint andthe exposed part of the copper pipe. Block of outdoor heat exchanger the heat Clean the dust accumulated on the surface of exchanger. Air circulation is insufficient Air filter were blocked Fan speed was set too slow Fan rotation speed becomes low Clean the filter To set the fan speed to high or middle speed Capacitor Replace the capacitor damage Motor damage Replace the motor The installation position of the outdoor unit is not appropriate. Good ventilation must be provided for the installation position of the outdoor unit. The outdoor temperature is too high. The air tightness is not enough. People come in and out too frequently. There are heating devices indoors. Properly install the rainproof plate or the sunproof plate. If the maximum cool air still can not meet the requirement, it is suggested to replace the air conditioner. Keep certain air tightness indoors, try not to use electricalappliance with large quantity of heat 160

41 Troubleshooting Guide The indoor fan motor is burned or breaks or has the heat protector malfunction. Replace the fan motor or the defective part. The fan does not run when it is set to supply air. The built-in heat protector of the motor breaks frequently because the motor is abnormal. Wrong connection The fan capacitor has open circuit or is damaged. Replace the fan motor Make the correction connection based on the circuit drawing. Replace the fan capacitor of the same type and same specification. In the cooling and heating mode, the compressor runs, but the outdoor fan does not run. The outdoor fan motor is damaged. Wrong connection The outdoor fan capacitor is damaged. Replace the fan motor Make the correct connection based on the circuit drawing. Replace the fan capacitor Malfunction of compressor Replace the compressor When cooling or heating, outdoor fan runs,compressor doesn't run. Breakage of running capacitor of compressor The voltage is too low or too high. Replace the capacitor Manostat is recommended. Wrong wire connection Connect the circuit diagram correctly The protector itself has malfunction. Use the multimeter to check whether the contact of the compressor is on when it is not overheated. If it is not on, then replace the protector The refrigerant is not enough or is too much. Adjust the volume of the refrigerant The compressor is too hot and leads to the action of the protector. The capillary is blocked and the temperature rises. The compressor does not run smoothly or is stuck. The air discharge valve is damaged Replace the capillary Replace the compressor The protector itself has malfunction. Replace the protector The swing fan does not run. The torque of the swing motor is not enough wrong connection First, check whether the connection is wrong. If no, replace the parts The controller is damaged IC2003 is damaged, the swing relay can not close, etc 161

42 In cool, heat mode,the outdoor unit and compressor will not run. C o n t r o l l e r m a l f u n c t i o n ( I C b r o k e n, creepage of parallel capacitor of relay loop, relay is broken etc.) Wire loose or wrong connection Change controller Correctly wire according to the drawing Improper setting of temperature Adjust setting temp. Water leakage Drainage pipe blocked or broken Wrap of refrigerant pipe joint is not close enough. Change drainage pipe Re-wrap and make it tight. Fan of indoor unit contacts other parts. Adjust fan location. Foreign object in indoor unit Take out the foreign object. Compressor shakes too much. Adjust support washer of compressor, and tighten loosen screws. Abnormal sound and shake Touch of pipeline of outdoor unit Touch of inner plates Separate the touching pipeline. 1. Tighten connect screw. 2. Stick absorbing clay between plates. Louver of outdoor unit touched outer case. Adjust location of louver. Abnormal sound inside compressor Change compressor 162

43 Flashing LED of Indoor/Outdoor Unit and Primary Judgement ame of running status ellow light Red light Green light Indoor unit display 1 2 Compressor start Defrosting Blink once Blink twice H1 3 Anti-freezing protection Blink three times E2 4 IPM protection Blink four times H5 5 Overcurrent protection Blink five times E5 6 Overload protection Blink six times H4 7 Air exhaust protection Blink seven times E4 8 Overload protection Blink eight times H Limited frequency (current) Limited frequency (Air exhaust) Limited frequency (overload) Limited frequency (anti-freezing) Outdoor unit ambient sensor malfunction Blink once Blink twice Blink three times Blink four times Blink five times F3 14 Outdoor unit tube temp. sensor malfunction Blink six times F4 15 Outdoor air exhaust sensor malfunction Blink seven times F5 Achieve the temperature of unit 16 startsup Blink eight times Communication is normal Communication malfunction Blink continuously OFF E6 19 Overload sensor malfunction Blink nine times H3 20 Low voltage protection Blink twelve times PL 21 High voltage protection Blink thirteen times PH 22 Indoor ambient sensor malfunction F1 23 Indoor tube temperature sensor malfunction F2 24 ormal cooling or norminal heating P1 25 Max. cooling or max. heating P2 26 Interim cooling or interim heating P3 27 Min. cooling or Min. heating P4 163

44 Malfunction Display If malfunction occurs,corresponding code will display and the unit will resume normal until protection or malfunction disappears. ellow indicator blinks for once Compressor stars (normal) ellow indicator blinks for twice Defrosting (normal display of indoor unit) ellow indicator blinks for 3 times ellow indicator blinks for 4 times Anti-freezing protection (normal display of indoor unit) IPM protection ellow indicator blinks for 5 times ellow indicator blinks for 6 times Overcurrent protection Overload protection ellow indicator blinks for 7 times Exhaust protection Indicator display of outdoor unit ellow indicator blinks for 8 times Red indicator blinks for once Overlod protection of compresoor Cooling (dehumidify) or heating current dropped frequency current. Red indicator blinks for twice Exhaust r temp. dropped frequency temp. Red indicator blinksfor 3 times Tubetemp. dropped frequency temp. Red indicator blinks for 4 times T tube-in dropped frequency temp. Red indicator blinks for 5 times Outdoor condenser temp. sensor mal. Red indicator for 6 times Outdoor ambient temp. sensor mal. Red indicator blinks for 7 times Outdoor exhaust temp. sensor mal. Red indicator blinks for 8 times Starting at temp. does not reach Green indicator does not blink Communication is abnormal 164

45 Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible reasons: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes incorrect operation; malfunction of compressor; malfunction of protection relay; malfunction of discharge sensor; outdoor temperature too high. Processing method: refer to the malfunction analysis in the above section. 2. Low voltage overcurrent protection Possible reason: Sudden drop of supply voltage. 3. Communication malfunction Processing method: Check if communication signal cable is connected reliably. 4. Sensor open or short circuit Processing method: Check whether sensor is normal, connected with the corresponding position on the controller and if damage of lead wire is found. 5. Compressor overload protection Possible reasons: insufficient or too much refrigerant; blockage of capillary and increase of suction temp.; improper running of compressor, burning in or stuck of bearing, damage of discharge valve; malfunction of protector. Processing method: adjust refrigerant amount; replace the capillary; replace the compressor; use universal meter to check if the contactor of compressor is fine when it is not overheated, if not replace the protector. 6. System malfunction i.e. overload protection. When tube temperature (Check the temperature of outdoor heat exchanger when cooling and check the temperature of indoor heat exchanger when heating) is too high, protection will be activated. Possible reasons: Outdoor temperature is too high when cooling; insufficient outdoor air circulation; refrigerant flow malfunction. please refer to the malfunction analysis in the previous section for handling method. 7. IPM module protection Processing method:once the module malfunction happens,if it persists for a long time and can not be self- canceled, cut off the power and turn off the unit,and then re-energize the unit again after about 10 min.after repeating the procedure for sever times, if the malfunction still exists,replace the module. 165

46 Troubleshooting Guide 3How to Check simply the main part (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: Use AC voltmeter to check if the voltage between terminal L and on the wiring board is within 210VAC~240VAC. If the reactor (L) is correctly connected? If the connection is loose or fallen? If the reactor (L) is damaged? Fault diagnosis process: Switch on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor (test3) Voltage higher than 200V? Fault with the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminal L and on wiring board XT Voltage within 210VAC~250VAC? Switch off the power and repair the supply power to restore the voltage to 210VAC~250VAC Re-energize and switch on the unit If the fault is eliminated? Switch off the power and wait 20 minutes; or use DC voltmeter to measure the voltage on the two ends of capacitor (test3), until the voltage is lower than 20V Check the connection of reactor (L in the Electrical Wiring Diagram) If the wiring of reactor L is normal? Connect the reactor L according to Electrical Wiring Diagram Re-energize and switch on the unit If the fault is eliminated? Replace the control panel AP1 End 166

47 (2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel) Mainly detect: If the connection between control panel AP1 and compressor COMP is secure? If loose? If the connection is in correct order? If the voltage input of the machine is within normal range? (Use AC voltmeter to measure the voltage between terminal L and on the wiring board XT) If the compressor coil resistance is normal? If the insulation of compressor coil against the copper tube is in good condition? If the working loads of the machine are too high? If the radiation is good? If the charge volume of refrigerant is correct? Fault diagnosis process: 167

48 Troubleshooting Guide Energize and switch on IPM protection occurs after the machine has run for a period of time? Use AC voltmeter to measure the voltage between terminal L and on the wiring board XT) If the voltage between terminal L and on wiring board XT is within 210VAC~250VAC? Check the supply voltage and restore it to 210VAC~250VAC Refer to the Electrical Wiring Diagram and check if the connection between AP1 and COMP is loose and if the connection order is correct. Please confirm: 1. If the indoor and outdoor heat exchangers are dirty? If they are obstructed by other objects which affect the heat exchange of indoor and outdoor unit. 2. If the indoor and outdoor fans are working normally? 3. If the environment temperature is too high, resulting in that the system pressure is too high and exceeds the permissible range? 4. If the charge volume of refrigerant is too much, resulting in that the system pressure is too high? 5. Other conditions resulting in that the system pressure becomes too high. Voltage between the two ends of electrolytic capacitor (test3) is higher than 250V Stop the unit and disconnect the power supply. Then, check the connection of capacitor C2 according to Electrical Wiring Diagram. Remove the wires on the two ends of capacitor C2. Then, use capacitance meter to measure the capacitor C2. Verify as per the Parameters Sheet. If capacitor C2 is failed? If there is any abnormality described above? Start and run the unit. Before protection occurs, use DC voltmeter to measure the voltage between the two ends of electrolytic capacitor on control panel AP1 (test3) The connection of capacitor C2 is loose. Stop the unit and disconnect the power supply. Wait 20 minutes, or use DC voltmeter to measure the voltage between the two ends of capacitor C2, until the voltage is lower than 20V Replace the capacitor C2. Then, energize and start the unit. Replace the control panel AP1 Take corrective actions according to Technical Service Manual, and then energize and start the unit. Replace the control panel AP1 If the unit can work normally? Reconnect the capacitor C2 according to Electrical Wiring Diagram. Then, energize and start the unit. If the unit can work normally? If the unit can work normally? If the unit can work normally? If the connection between AP1 and COMP is unsecure or the connection order is wrong? Connect the control panel AP1 and compressor COMP correctly according to the Electrical Wiring Diagram. Then, energize and start the unit. If the unit can work normally? Use ohmmeter to measure the resistance between the three terminals on compressor COMP, and compare the measurements with the compressor resistance on Service Manual. Use ohmmeter to measure the resistance between the two terminals of compressor COMP and copper tube. If the resistance is normal? Resistance higher than 500MΩ? Replace the control panel AP1 Replace the compressor COMP ED 168

49 3High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Is outdoor ambient temperature in normal range? Are the outdoor and indoor fans operating normally? Is the heat dissipation environment inside and outside the unit is good? Overheat and high temperature protection Is outdoor ambient temperature higher than 53? ormal protection, please operate it after the outdoor ambient temperature is normalized. 20 minutes after the complete unit is powered off. Is heat dissipation of the indoor unit and outdoor unit abnormal? Improve the heat dissipation environment of the unit Does the outdoor fan work normally? 1. Check if the fan terminal OFA is connected correctly 2. Resistance between any two terminals is measure by an ohm gauge and should be less than 1K Ohm. Replace the control panel AP1 Replace the fan capacitor C1 Replace the outdoor fan End 169

50 (4) Fail for start up (following AP1 for outdoor unit control board) Mainly detect: Whether the compressor wiring is connected correct? Is time for compressor stopping enough? Is compressor broken? Power on the unit Is stop time of the compressor longer than 3 minutes? Restart it up after 3 minutes Does startup fail? Are the wires for the compressor connected correctly? Is connection sequence right? Connect the wires as per the connection diagram Replace the control panel AP1 If the fault is eliminated? Replace the compressor End

51 Troubleshooting Guide (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Whether the unit voltage is too high? Whether the work voltage is too low? Out of step occurs once the unit is powered on. Out of step occurs in operation Is stop time of the compressor longer than 3 minutes? Is the outdoor fan working normally? Check if the fan terminal OFA is connected correctly Replace the fan capacitor C1 Is the outdoor unit blocked by foreign objects? Remove foreign objects Replace the outdoor fan Are the wires for the compressor connected correctly? Is connection sequence right? Is the connection made in clockwise direction? Replace the control panel AP1 Connect the wires correctly Replace the control panel AP1 If the fault is eliminated? If the fault is eliminated? Replace the compressor Replace the compressor End End 171

52 Troubleshooting Guide (6)Overload and air exhaust malfunction detect (following AP1 for outdoor unit control board) Mainly detect: Wether the electronic expansion valve is connected well or not? Is electronic expansion valve damaged? Is refrigerant leaked? 20 minutes after the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly? Connect the wires correctly Resistances between the first four pins close to the terminal hole and the fifth pin are almost the same, less than 100 ohm. Replace the electronic expansion valve If the fault is eliminated? Replace the control panel AP1 If the fault is eliminated? Coolant leakage, refilling the coolant End 172

53 Troubleshooting Guide 7Power factor correction (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken The failure diagnosis process is as follows: Start Check wiring of the reactor (L) of the outdoor unit and the PFC capacitor Whether there is any damage or short-circuit? Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated? Remove the PFC capacitor and measure resistance between the two terminals. Is the resistance around zero? The capacitor is short circuited and the capacitor should be replaced Restart the unit If the fault is eliminated? Disconnect the terminals for the reactor and measure the resistance between the two terminals of the reactor by an ohm gauge Whether there is any damage or short-circuit? Replace the reactor Restart the unit If the fault is eliminated? Replace the control panel AP1 End 173

54 (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? The flow chart for malfunction detect: Start Did the equipment operate normally before the failure occurs? Check the wiring of the indoor and outdoor units with reference to the wiring diagram Check wiring inside of the indoor and outdoor units Is the connection right? The AP1 voltage detection circuit is at fault Are wires broken? Correctly connect the corresponding wires for the indoor and outdoor units with reference to the wiring diagram If the fault is eliminated? Check the communication circuit of the outdoor unit If the fault is eliminated? The communication circuit is abnormal Replace the main board AP1of the outdoor unit If the fault is eliminated? Replace the main board of the indoor unit End 174

55 Appendix 1: form for indoor/outdoor unit's ambient sensor numerical value of resistance Temp. Temp. Resistance Resistance Temp. Resistance Temp. Resistance 175

56 Troubleshooting Guide Appendix 2: form for indoor/outdoor unit's tube temperature sensor numerical value of resistance Resistance Resistance Resistance Resistance Temp Temp Temp Temp 176

57 Appendix 3: form for indoor/outdoor unit's air exhaust temperature sensor numerical value of resistance Temp. Temp. Resistance Resistance Temp. Resistance Temp. Resistance 177

58 Disassembly Indoor Unit Disconnect the unit from power supply before making any checks. Be sure the power switch is set to OFF. 1.Disassemble the front panel Open the front panel, slightly press the both sides of rotating axial of the panel, to make the rotating axial out of groove, can take down the front panel. To push the filter forward, to make the both clasps loosen, can pull Screw off one screw from the top cover, can take down it. out off the filter. Front panel Filter Top cover 2.Disassemble the air guide louver To make the axis sleeve out of the middle of left air guide louver, hold both sides of air guide louver, slightly press the middle part then can disassemble the air guide louver. Air guide board Axis sleeve 3.Disassemble the front case Screw off 7pcs screw from fixing front case, loosen the clasps of rear side, lift it up, can disassemble the front case. Screws Clasps 178

59 Disassembly 4.Disassemble the electric box cover Slightly press the electric box cover to make the clasps out take down the ambient sensor, can take down the electrric box cover. Electric box cover Earth screw 5.Disassemble electric box Screw off the screws fix the electrix box, screw off the earh screw, pull out the tube sensor, pull out the air guide motor, the wiring terminal of motor, screw off the screws fixing the displayer, can take down the electric box. Tube temperature sensor Cold plasma Wire terminal Screws Mianboard 6.Disassemble the evaporator Screw off the screws fixing the connection pipe clamp, loosen the clasp from left side, take down the connection pipe clamp; Unscrew the screws at both sides of evaporator, slightly move right toward, to make the right Screws side clasp loosen, then can take down the evaporator. Connection pipe clamp 179

60 Disassembly Clasp Screws 7.Disassemble the motor Screws Unscrew the screws which fix the motor clamp, take down the motor and cross flow fan, screw off one screw which connects with the motor and cross flow fan, then take out the motor. Screws Motor clamp Cross flow fan Screw Motor 180

61 outdoor Unit Unscrew the screw fixing the big handle,and then remove it downwards to take it out. Screw Big Handle Unscrew the 2 screws fixing left side of top cover and the 1 screw fixing the right side to remove the top cover. Screws Unscrew the 4 screws fixing the rear grill to remove it. Rear Grill Screws 181

62 Disassembly Unscrew the 5 screws fixing the panel and dextrorotate the front panel to pull it out from groove. Screws Unscrew the 2 screws fixing electric box,and then unscrew the 5 screws fixing the right side plate to remove it. Screws Right Side Plate Screws Electric box cover Firstly unscrew off two pcs screw on the lelectric box cover, take down the connection wire of motor, compressor, sensor, electric heating belt, screw off the earth screw at side wire terminal and two pcs screw which fixes the electric box, then can take down the electric box. Screws 182

63 Disassembly Loosen the fastening nut fixing the axial flow fan with a spanner, and then take out the nut, spring gasket and flap gasket in turn. Axial Flow Fan ut Unscrew the 4 screws fixing the motor to take out the motor,and then unscrew the 2 screws fixing the motor support to take it out. Screws Motor Screws Unscrew the fastening nut of the four-way valve coil and remove the coil. Wrap the four-way valve with wet cotton and unsolder the 4 weld spots connecting the four-way valve to take it out. (ote: Refrigerant should be discharged firstly.) Welding process should be as quick as possible and keep wrapping cotton wet all the time. Be sure not to burn out the lead-out wire of compressor. Four-way valve Four-way valve coil Weld spots 183

64 Disassembly Respectively unsolder the weld spots of main capillary and auxiliary capillary to take off the capillary. Capillary Screw off the screws which fix the valves, unsolder the pipeline take down the valves. Bolts Liquid Valve Gas Valve Loosen 3 pcs nut from the bottom of compressor, unsolder the air intake and air exhaust pipeline, becareful to move the pipeline, and take out the compressor. uts with washers 184

65 Exploded View Exploded View Indoor Unit 185

66 Exploded View Outdoor Unit 186

67 Replacement Parts List Replacement Parts List Parts List (Indoor) o Description Part Code EVKC 09 DS EVKC 12 DS Qty 1 Wall-Mounting Frame Rear Case Evaporator Assy Evaporator Support Cross Flow Fan Bearing cushion rubber base Ring of Bearing Volute tongue Left Axile Bush / Crank Axile Bush Swing Louver Swing Louver Front Case Filter Remote Control B1FA Decorate Piece Double-side glue / Receiver Board D5183B Front Panel S Screw Cover Guide Louver Wire Clamp Rear Clamp Motor MP24AA Motor Clamp Motor F20J-PG Electric Box Cover Covering Plate Terminal Board T4B3A Electric Box Main PCB M809F2J(MI) Jumping Connector Transformer 41X26.5G Power Cable Connecting Cable OTE) * Please ensure GCSC since these parts may be changed depending upon the buyer's request

68 OTE) * Please ensure GCSC since these parts may be changed depending upon the buyer's request. 66 Replacement Parts List o Description Part Code EVJC 09 DS EVJC 12 DS Qty 1 Front Panel Clap Board Drainage Connecter Reactor Support P P 1 5 Temperature Sensor 222KT-XH-2P(white) Compressor KB092FHBMC / / / / 8 Compressor Bolt ut M6Xφ 25X Valve Support Right Side Plate Valve 3/ Valve 1/ Capillary Assy Way Valve way Rever-sing Valve Component Big Handle way Valve Coil Wire Clap Insulation Piece D Terminal Board A Electric Box Assy Electric Box PCB W8073B Temperature Sensor Sensor 20K Exhaust Gas Temperature Sensor 50K Electric Box Cover Sensor Insert Radiator Rear Grill Condenser Assy Top Cover Assy Motor Support Reactor L15mH/10A Reactor Box Motor FW25K Axial Flow Fan ut Front Grill Heating cable

69 Method of testing the system at a fixed frequency operation. Model Mode Rotate speed Setting temp. Mode Rotate speed Setting temp. Cooling Heating 9K 12K 9K 12K 9K 12K P0 P1 P P0 P1 P After set up the turbo and indoor setting temperature, within 2.5s continuously press Sleep button four times, the displayer will display P0 or the corresponding codes, that will enter into relevant testing status, the compressor will run according to the relevant frequency. P0: Min. status; P1: Rated status; P2:Max. status 189