Service manual - Andi
Contents
1. AMBIENT Temp Sexson PAK H E TEMP SENSOR 2 oud DISPLAY BOARD cua 5 FAN CAPACITOR MOTOR PUMP E BLAGK 7 MOTOR FAN CAPACITOR m mur Yao A YELLOW BUK 4 Ole BLUE I AP d J 1 H re T ai CNS T RED 5 CONTROL BOARD 6 R8 CN3 X B _ L RED 2 BROWN BLACK a ud _ CAPACITOR BLUE Y fat comps TM A od 8 27 et PUER BLACK TRANSFORMER Andi Co Australia Pty Ltd Service manual for K1 portable Series 3 2 FOR COOLING AND HEATING MODELS MPKI 12ER QB6 MPK1 14ER QB6 AMBIENT TEMP SENSOR _ 2 BLACK TEMP SENSOR 52 BLACK CH4 DISPLAY BOARD aM DOWN FAN d FAN CAPACITOR P OLOR id ESL es 7 YEG THERMOSTAT RED P y BROWN ron ike bra BLACK BLUE BLACK CB THERMAL FUSE 3 Jl z Pi PS P4 P2 QS RED RY6 8 CONTROL BOARD pr R5 _ CN3 ERa A RED __ BROWN I BLACK YELLOW js CAPACITOR BUE 4 in h aly d BLACK aA alg FE f 9 m POKER BLACK Y amp G TRANSFORMER BLACK 146 Service manual for K1 portable Series 32. shorted open or damaged Check the temperature setting if not at the coolest in cooling Room temp sensor m mode or the warmest in heating mode Set it if not Check the compressor for open circuit or ground If open or Compressor grounded replace the compressor Remove the cabinet and carefully rearrange tubing not to contact Excessive noise Copper tubing cabinet compressor shroud and barrier Water tank full Check and pour if the water tank is full Water depth sensor if failure Check and replace if failure Water pump failure Check and replace if the pump if failure Water full alarm Water depth is over load in Check and drainage the water in the chassis by open the drainage chassis hose on the chassis Water depth sensing ae E Check and replace or realign if the structure is failure structure Cooling or heating Air filter Clean or replace if restricted feels not good mM Realign and assemble if the installation of the air discharging pipe Air discharge pipe failure Replace if damaged Determine if the unit is properly sized for the area to be cooled or Unit undersized eated Condenser and Evaporator Clean or replace if restricted Check the structure of water showering system and clean if Water shower failure blocked Check the fan capacitor and replace if not within 10 of Fan motor manufactures rating Xen Clean or remove if any barrier is found to block t
3. Andi Co Australia Pty Ltd Website www andico com au ANDI room Air conditioner Service manual CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORISED SERVICE PERSONNEL MODELS MPK1 09CR QB8 MPK1 12ER QB6 MPK1 14ER QB6 Andi Co Australia Pty Ltd Service manual for portable Series CONTENTS 1 PREFACE DD PRECAUTIONS e 2 1 2 INSULATION RESISTANCE 2 FEATURE c 2 1 4 CONTROL 2 2 TROUBLE SHOOTING GUIDE 2 1 REFRIGERATION 4 22 4 2 3 TROUBLE SHOOTING m m 6 3 WIRING DIAGRAM 3 1 WIRING DIAGRAM FOR COOLING ONLY 9 3 2 WIRING DIAGRAM FOR COOLING AND HEATING 9 3 9 ELECTRICAL CONTROL SCHEME isum pup 10 BOARD SCHEME 11 39 DIOFLA Y BOARD SCHEME A HOW TO DISASSEMBLE THE 18 21 Andi Co Australia Pty Ltd 1 PREFACE Service manual for K1 portable Series This SERVICE MANUAL provides various servicing information including the mechanical and electrical parts
4. clasp and release the assembly WT Now it is easy to replace the display board Take care to release the connector which connected to the display board 4 4 To disassemble the front panel Remove the screws fixing the front panel Screws fix the front panel from side of the unit Service manual for K1 portable Series Screws on front bottom of the unit YEA It Hm gt Pes e Screw locates on bottom of chassis Be care to release the connectors which connect to 14 Andi Co Australia Pty Ltd Service manual for portable Series the display board 4 5 To replace the Main Control board Remove the screws fixing the enclosure cover Take care of the wiring diagram on the cover The wiring diagram is important for reference when wiring 1 Terminate to display board 2 Terminate to condenser fan motor 3 Out put of transformer 4 Terminate to evaporator fan motor 5 Terminate to compressor 6 Terminates N to condenser fan motor electric heater pump power cord compressor capacitor 7 Terminate to electric heater Pay attention to the wires in the enclosure 8 Terminate L to power cord 9 Terminate L to pump 10 Terminate to input of transformer Take care to the grounding wires if need to disconnect amp 15 Andi Co Australia Pty Ltd Service manual for K1 portab
5. etc This room air conditioner was manufactured and assembled under a strict quality control system The refrigerant was charged at the factory Be sure to read the safety precautions prior to servicing the unit 1 1 SAFETY PRECAUTIONS 1 When servicing the unit set the POWER SWITCH to OFF and unplug the power cord 2 Inspect the service cord for damage or wear If a short circuit is found replace all parts which have been overheated or damaged by the short circuit 3 After servicing the unit make an insulation resistance test to protect the customer from being exposed to shock hazards 1 2 INSULATION RESISTANCE TEST 1 Unplug the power cord and connect a jumper lead between the two 2 live pins 2 The grounding conductor yellow green is to be open 3 Measure the resistance value with an ohm meter between the jumped lead and each exposed metallic part on the equipment at all the positions except OFF of the ROTARY SWITCH or POWER SWITCH 4 The value should be over 1MQ 1 3 FEATURES Water full alarm Anti icing function at cooling mode Restart relay protection for the compressor Temperature sensor err self diagnose 24 hours on off mode time setting Both temperature mode display Separate motor for indoor and outdoor system Multiple uses dehumidifying and cloth drying Low temperature Drying operation There are four casters on the bottom for easy movement 1 4 CONTROL LOCATIONS For cooling only with elect
6. for portable Series the screw fixing the water switch which Then remove the screws fixing the switches and controls the water in tank replace Pay attention to the holes Don t install into wrong holes Press the clamp fixing the water switches which control the water in the chassis a Press downward here 19
7. 3 ELECTRICAL CONTROL SCHEME Andi Co Australia Pty Ltd LEA 9 HOS os toor t ER RI LUE COO Breotrse oa idee orrNOSE dor eee LAM ORME Pr HRB SRA sein x HEMOR T zi Ed SEHE oss IND INN IEEE Ee HSER A EEA E EA C GRE Tate eA Y i EZ IT ze GH SE CLOSE i dung pepe 5 Hu F LI AJ Agla LO Cid LAH ADEE FT eem Ei ESQ I Lum oho E ed Fa 1920 eR ie a m F 2 Vez 1507 ee E M PRIAMO 5 L ia del s HI I aly c E 4 i E ee 3 ADS J 3 el rene YTAN j m z Srl eel ant 20 Ez 184 Aja 10 Service manual for K1 portable Series Andi Co Australia Pty Ltd 3 4 MAIN CONTROL BOARD SCHEME dm 1 am
8. E ER pam Em cum amm um um un E ad a 101 f hy e og o JA j NAC ros lid 77 11 Andi Co Australia Pty Ltd Service manual for portable Series 3 5 DISPLAY BOARD SCHEME ee gm M NE jag A 1 1 E CENE m BOR o o amp OB OR ON B Ex E Br a e gt F di Fd F al zi D J Pm dM i t k k b A aw 12 Andi Co Australia Pty Ltd Service manual for portable Series 4 HOW TO DISASSEMBLE THE UNIT 4 1 Prepare the unit Unplug the power cord and disconnect the Air pipe from rear of the unit C E i X Em Move the unit to a replace where water can be poured Remove the rubber plug from back of the unit and drainage the water in from the unit the water tank from the unit and pour the water in the tank 4 2 Remove the screws which fixed the rear panel 13 Andi Co Australia Pty Ltd Take care to the indoor temperature sensor attached on the rear board And be care to the power cord which got through the rear panel 4 3 To disassemble the display board assembly just push the
9. cted or Connect wire Refer to wiring diagram for terminal identification Fan motor will not connection loose Repair or replace loose terminal run Select fan speed and Check the voltage on main PCB Replace Main PCB failure the main PCB if no voltage in anyone Test capacitor Capacitor Discharge Replace if not within 10 of manufacture s rating Replace if capacitor before testing shorted open or damaged Fan blower hitting scroll Realign assembly Will not rotate Check fan motor bearings Replace the motor if motor shaft do not rotate Andi Co Australia Pty Ltd Service manual for K1 portable Series Replace the fan blower if cracked out of balance or partially Fan blower HAM missing Fan motor noise Replace the motor if knocking sounds continue when running or Worn bearings loose or the motor hums or noise appears to be internal while running Voltage Check voltage Call Supply Authority if not within limits Check the wire connections if loose repair or replace the T terminal If wires are off refer to wiring diagram for identification iring and replace Check wire locations If not per wiring diagram correct Compressor will not Main PCB failure Check voltage of main PCB Replace the main PCB if open run while fan motor Check the capacitor Capacitor Discharge runs Replace if not within 10 of manufacturers rating Replace if capacitor before testing
10. either of the input output is transformer before testing failure open or the transformer is damaged Display board or main PCB Check the voltage on display board Replace the display board if it Remote control failure is 5 else replace the main PCB failure Check the voltage of battery Replace batteries if the voltage is lower than 2 3V Check voltage Call an electrician if not within limits Test capacitor Battery failure Replace if not within 10 of manufacture s rating Fan motor runs Cycles on overload Check bearings Replace the motor if the blower wheel cannot intermittently rotate freely Pay attention to any change from high speed to low speed Replace the motor if the speed does not change The amount of the refrigerant is too much making the compressor Compressor stops Refrigerant load too big Recycle and recharge the refrigerant after checking instantly after for the reason startup The compressor is blocked inside Replace after checking for the Check voltage at electrical outlet Correct if none Check and correct if water alarm happens Check voltage at the power cord terminal on Main PCB Replace Power supply cord the power cord if Check resistance between the two input output lines on Transformer Discharge transformer Replace the transformer if either of the input output is transformer before testing open or the transformer is damaged Wire disconne
11. ent temperature 7 C 43 C for cooling only with electric heater models and 10 C 43 C for cooling only models 2 2 1 4 Indoor fan normal working amp is less than 1A 2 2 1 5 Outdoor fan Normal working amp is less than 1 5A 2 2 1 6 Compressor single phase power supply Its normal working amp is less than 10 2 2 2 Proper symbols and their meanings TA Indoor ambient temperature TC Indoor evaporator temperature TS Setting temperature through the remote controller 2 2 3 Systematic functions Remote receiving Optional LED displaying and alarm On or off Timer Protection for the compressor Water full alarm Anti icing function at cooling mode Temperature sensor err self diagnose 1 999 Service manual for K1 portable Series Outdoor unit CAPILLARY TUBE f rj 4 1 LT f CONDENSER UE HEAT X EXCHANGE y I CO COMPRESSOR Both temperature mode display 2 2 4 Protection 2 2 4 1 The compressor functions protection with a delay of three minutes 2 2 4 2 Sensor protection at open or short circuit 2 2 4 3 Evaporator anti icing protection at cooling mode 2 2 4 4 Water full alarm There are two water position switches used in the unit One detects the water depth in the chassis and the other detects the water in the tank 2 2 4 4 1 Water full alarm will be on when the unit is standing by or operating 2 2 4 4 2 When the water adds up to the first
12. he inlet outlet ir flow wind flow of the unit Check the tubes for reasons leakage Recycle the refrigerant Less refrigerant correct the leakage points and recharge Regulate the flow if capillary tube and make the evaporating Capillary tube temperature appropriate if the evaporator is frosted Replace if blocked Repair joint if leaking Andi Co Australia Pty Ltd Service manual for K1 portable Series The inlet and outlet valve of the compressor is damaged making the low pressure connected with the high pressure The Compressor refrigerating system can not produce high pressure and low pressure Replace the compressor after checking for the reason No cooling or Check and replace if the compressor the over load protector or Compressor EM heating wiring is broken Electric heater failure Check and replace if the heater is damaged Over heat fuse failure Check and replace if the fuse is damaged Check the voltage of Replace the when the Main PCB unit failure in heating mode The input power supply voltage is too low Call an electrician if not Power supply BEEN within limits The unit starts and an Pee Check and replace the main PCB if the compressor relay on PCB ain stops frequently is shorted or damaged When the room temperature is too high the compressor will Room temperature protect 3 WIRING DIAGRAM 3 1 FOR COOLING ONLY MODEL MPK1 09CR QB8
13. igh fan speed lamp Med fan speed lamp Low fan speed lamp LN Fan speed setting button Push this Ni button to select fan speed High Med and Low a Power button Push this button to start Pore the unit FULL Water full alarm lamp Power lamp Remote controller LCD display Mode button Select the operation mode AUTO COOL DRY HEAT cooling only with electric heater models only and FAN Fan speed button Select the Fan speed AUTO LOW MED HIGH ON OFF button Press this button to operation the unit again to stop Temperature setting up button Press this button to increase temperature setting or adjust the TIMER in a clockwise direction Temperature setting down button Press this button to decrease temperature setting or adjust the TIMER in a counter clockwise direction Timer on button Push this button to set the ON timer Timer off button Push this button to set the OFF timer Lock button Press this button to lock all button except this button Reset button Press this button to reset all settings to factory settings Andi Co Australia Pty Ltd 2 TROUBLESHOOTING GUIDE 2 1 REFRIGERATION CYCLE DIAGRAM Indoor unit LIQUID SIDE VALVE _ S HEAT EXCHANGE EVAPORATOR 2 2 ELECTRICAL FUNCTION 2 2 1 Electric Control working environment 2 2 1 1 Input voltage 187 264V for 50Hz models and 97 127 for 60Hz models 2 2 1 2 Input power frequency 50Hz or 60Hz 2 2 1 3 Ambi
14. le Series 4 7 To replace the evaporator fan motor or the fan motor fan scroll and blower wheel electric heater from the unit To disassemble the air out frame Remove the screws fixing the air out frame Lift the frame up then pull the frame forward Slide the electric heater bracket up and remove the parts from the unit the screws fixing the fan shell box F EN 4 gt T T Ld in Now it is easy to replace the electric heater and or heat protector attached with the heater 16 Andi Co Australia Pty Ltd Service manual for K1 portable Series 4 8 To replace the condenser fan motor 4 9 To repair the refrigerant system or replace Remove the screws fixing the evaporator the compressor Disconnect the water pipe below dd the screws fixing the condenser fan motor Remove the screws fixing the condenser fan scroll bracket Then remove the bracket with condenser fan motor and blower wheel from the unit 17 Andi Co Australia Pty Ltd Service manual for portable Series 4 10 To repair the water disposal system or replace the water depth switch or the pump Remove the screws fixing the supporting board the screw fixing the pump clamp the water pipe from the cover 1 Then remove the condenser fan scroll Now it is easy to repair the refrigerant system 18 Andi Co Australia Pty Ltd Service manual
15. matically OFF at the set time 2 2 10 4 TIMER ON OFF function ON TIMER is earlier than OFF TIMER first turn OFF the unit it will be automatically ON at set time and later be OFF at the set time 2 2 10 5 TIMER OFF ON function OFF TIMER is earlier than ON TIMER first turn ON the unit it will be automatically OFF at set time and later be ON at the set time 2 2 10 6 Timer function execution is applicable upon one operation only 2 2 10 7 Timer precision is less than 15 minutes 2 2 11 Auto restart function In case of a sudden power failure this function automatically sets the unit to previous settings before the power failure when power returns In general possible trouble is classified in three kinds One is called Starting Failure which is caused from an electrical defect another is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application and the other is called the Structure Damage Andi Co Australia Pty Ltd Service manual for portable Series ROOM AIRCONDITIONER VOLTAGE LIMITS NAMEPLATE RATING MINIMUM MAXIMUM 220 240V 196V 253V PROBLEM POSSIBLE CAUSE REMEDY Check the power supplier if the power supplier is supplied to the Power failure No power display unit Check the power cord and correct if damaged on panel or any one Check resistance between the two input output lines on Transformer Discharge of the buttons transformer Replace the transformer if
16. n the unit starts to operate in Drying mode the compressor will start while the room temperature is over 13 After the compressor started the compressor will operate as roomtem perature TA Compressor and outdoor ON 15 13 Compressor and outdoor fan OFF Temp down 2 2 7 2 The indoor fan will operate with high speed The outdoor fan will operate with compressor 2 2 8 Heating mode 2 3 TROUBLESHOOTING GUIDE Service manual for K1 portable Series 2 2 8 1 The speed of indoor fan can be optionally chosen as High Mid Low 2 2 8 2 Electric heater operate as roomtem Electricheater OFF 1 TS Tempup Electricheater ON Temp down 2 2 9 Temperature display 2 2 9 1 The setting temperature will be displayed in Cooling and Heating mode The room temperature will be displayed in Drying and Fan only mode 2 2 9 2 The setting temperature range is from 17 to 30 C or 62 F to 88 F The display temperature range is from 10 C to 35 C or 48 F to 98 F If the room temperature is lower than 10 C or 48 F the display will be 10 C or 48 F 2 2 10 Timer Function 2 2 10 1 The maximum length of Timer is 24 hours and the minimum is 0 5 hours 2 2 10 2 TIMER ON function first turn OFF the unit the unit will be automatically ON at the set time 2 2 10 3 TIMER OFF function first turn ON the unit the unit will be auto
17. position on the chassis the pump will be activated If the water drops down through the position the pump will be on and stop after 2 minutes 2 2 4 4 3 When the water adds up to the position on the tank the compressor outdoor fan motor electric heater and pump will stop operation And the LED will display P1 while the water full lamp flashes at 2Hz 2 2 4 4 4 When the water adds up to the second position on the chassis and the switch has been 4 Andi Co Australia Pty Ltd on for 10 seconds the whole unit will stop operation The LED will display 2 and the water full lamp will flash at 5Hz After you have clear the problem you should unplug the unit and plug again Then the unit will be ready to operate 2 2 4 4 5 When the unit is standing by if the unit displays P1 the pump will not operate After the problem is cleared the unit will be ready to operate But if you push the power button the unit will shut the P1 display and shut down 2 2 5 Fan only Mode Function Requirement 2 2 5 1 The compressor and outdoor fan are OFF at Fan only mode 2 2 5 2 The speed of indoor fan can be optionally chosen as High Mid Low 2 2 6 Cooling Mode Function Requirement 2 2 6 1 The speed of indoor fan can be optionally selected as High Mid Low 2 2 6 2 The compressor operate as roomtem perature TA Compressor ON TS 1 TS Compressor OFF Temp down 2 2 7 Drying mode 2 2 7 1 Whe
18. ric heater models For cooling only models Only one exhaust pipe which makes the A C easier to use Remote controlled or gentle touch keys for easy and comfortable use Compressors of famous brands are adopted for reliability and low noise The heating system uses PTC electrical heater and will not be affected by ambient temperature which saves energy Suitable for local cooling and heating Condenser shower and large volume tank design Long time to pour the tank Directly drainage available Andi Co Australia Pty Ltd SET TEMPERATURE C F MODE ON OFF pM TIMER SPEED OFF O y LJ RESET LOCK 0 Hemote receiver Timer ON button Push this button to set the Timer On time Timer OFF button Push this button to set the Timer Off time Timer ON OFF lamp Fahrenheit temperature display When Fahrenheit temperature display mode is selected Celsius temperature display When Celsius temperature display mode is selected Temperature setting up Push this button to set temperature setting up Temperature setting down Push this button to set temperature setting down Cooling operation lamp Drying operation lamp Fan only operation lamp Electric heating operation lamp Service manual for K1 portable Series s Mode setting button Push this button to select the operation mode Cool Dry Fan only and Heat H
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