TECHNICAL DATA & SERVICE MANUAL SPLIT SYSTEM AIR
Contents
1. Compressor current detection When the compressor current rises above B1 A and if the indoor fan is L low speed the fan speed changes from L low speed to M medium speed At the same time the outdoor fan stops its operation When the compressor current drops to B2 A the outdoor fan resumes its operation When the compressor current drops below indoor fan returns to operate in set speed Compressor B1 current A og EUM B3 Outdoor fan ON LV Indoor fan fon MoM CoM Compressor ON NOTE The compressor current shown as B1 B2 and B3 in the chart differs by models NER AD ADR609HL AD ADR612HL 6 5 A 44A 4 4 A 20 4 7 Cold Draft Prevention Heating This function controls indoor fan speed so that strong draft of cold air could not blow out before the indoor heat exchange coil have sufficiently warmed up STANDBY lamp of the indoor unit lights up when this function is working Indoor fan operates in LL until indoor heat exchange coil temperature reaches 32 C After releasing the defrosting indoor fan halt its operation until the coil temperature reach 32 C When the coil temperature rises above C indoor fan operates in set speed Max 10minutes Tc Indoor heat exch coil temp C Standby lamp Release of cold draft prevention NOTE The operation temperature shown as Tc in the chart differ by models AD ADR609HL AD ADR612H2. Then also measure the resistance between the grounding and other power terminals fig 1 6 1 2 Indoor Unit 7 Clamp a metallic part of the unit with the lead 7 clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal Sap B screw where power supply lines are connected on the Copper terminal plate fig 2 tubo metallic part Fig 2 6 1 3 Outdoor Unit Clamp an aluminium plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate fig 2 Note that the ground line terminal should be skipped Clip for the check Copper tube or metallic part 6 1 4 Measurement of Insulation Resistance for Electrical Parts c on Fig 3 Disconnect the lead wires of the desired electric From fan motor part from terminal plate capacitor etc ndi and oimilary disconnect the connector E Then measure the insulation resistance fig 3 and 4 Metallic NOTE Refer to electric wiring diagram pan Cli If the probe cannot enter the poles because the di hole is too narrow then use a probe with a thinner pin Insulation tester Fig 4 33 6 2 Checking Continuity of Fuse on PCB Ass y a Remove the PCB Ass y from the electrical component box Then pull out the fuse from the PCB Ass y fig 5 PCB Ass y Check for continuity using a multimeter as shown in fig 6 c Fi
3. In a ceiling Make sure the ceiling is strong enough to hold the unit weight It may be necessary to build a strong wooden or metal frame to provide added support Ina room Properly insulate any tubing run inside a room to prevent sweating which can cause dripping and water damage to walls and floors moist or uneven locations Use a raised concrete base to provide a solid level foundation for the outdoor unit This prevents damage and abnormal vibrations In area with strong winds Securely anchor the outdoor unit down with bolts and a metal frame Provide a suitable air baffle a snowy area for heat pump type systems Install the outdoor unit on a raised platform that is higher then drifting snow Provide snow vents When connecting refrigerant tubing Keep all tubing runs as short as possible Use the flare method for connecting tubing Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them screw by hand and then tighten the nut with a torque wrench for a leak free connection e Check carefully for leaks before starting the test run NOTE Depending on the system type liquid and gas lines may be either narrow or wide Therefore to avoid confusion the refrigerant tubing for your particular model is specified as narrow tube for liquid wide tube for gas When servicing Turn the power OFF at the main power board before opening
4. is obstructed YES Remove obstruction 29 5 4 Air conditioner operates but abnormalities are observed 5 4 1 Operation does not switch from HEAT to COOL or COOL to HEAT Remote control unit may be defective Receiver in lamp ass y may be defective Measure resistance of 4 way valve s winding 20S COOL to HEAT Check voltage between terminals Outdoor ass y is defective N 4 N 6 at terminal plate DC 24V No voltage appears Indoor ass y is defective HEAT to COOL Check voltage between terminals N 4 N 6 at terminal plate OV 30 5 4 2 Poor cooling or heating Check position of remote control unit YES e Cool or warm air from air conditioner Change position of remote control unit reaches position directly Insulate both wide and narrow tubes separately and then tape together Wide and narrow tubes between indoor unit and outdoor unit are insulated YES Temperature difference Measure temperature of suction and is small Possibility of Charge refrigerant discharge air of air conditioner gas shortage gas Temperature difference between suction and discharge air is large enough approx 10 deg or more Check for clogging of air filter Clean filter Air filter is clogged YES i e Fan speed is set to LOW 4 2 9 Reduce cooling or heating Review cooling load estimate load or replace the air if perf
5. on PCB Ass y 6 3 Checking Motor Capacitor 7 MAINTENANCE 7 1 Changing Address of Remote Control Unit in Indoor Unit 16 16 18 18 19 19 20 21 22 23 24 24 24 28 30 32 33 33 34 34 35 35 1 SPECIFICATIONS 1 1 Unit Specifications AD609HL 220 240V 50Hz Voltage rating 230V Performance Capacity oee catalogue with the requested matching m h 600 510 440 mm W G 49 5 at shipment 69 7 with booster cable Air circulation High Med Low External static pressure High Controls Temperature controls Microprocessor thermostat Control unit Wireless remote control unit ON OFF 24 hours amp Daily program 1 hour OFF Timer Fan speed 3 and Auto 1 Hi Washable Air Filter Operation sound High Med Low 54 52 49 Flare type Refrigerant tubing connections Refrigerant Narrow tube 6 35 1 4 tube diameter Wide tube in 9 52 3 8 Refrigerant R22 Dimensions amp Weight Dimensions Height Width Depth Package dimensions Height Width Depth Volume Net Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE Power level measured at operating conditions HIGH speed 5mmH20 external static pressure and inside discharge air duct ADR609HL 220 240V 50Hz Voltage rating 230V Performance Capacity Air circulation High Med Low External static pressure High Controls Temperature controls oee catalogue with the requested matc
6. residue buildup on remote Clean transmitter control receiver on front of indoor unit D Check fuse on the indoor Ass y Check fuse on indoor PCB Ass y If fuse has been blown Clean receiver Measure resistance of indoor and for continuity F01 Check operation lamp to see if light is ON Light is OFF Measure resistance of primary and secondary winding of transformer TR e Indoor PCB Ass y is defective E Check TIMER on the remote control unit Timer is turned ON Check to see YES outdoor fan motor winding FM Measure resistance of compressor motor winding CM Measure resistance of 4 way valve s windings Replace the fuse if ON O or is displayed on remote control 26 gt Cancel the timer mode 5 2 3 Only outdoor unit does not run A Check setting temperature COOL Is room temperature too low NO Try to lower setting temperature by temperature setting button v button Outdoor unit still does not run Y Try to run using another remote control unit OK Remote control unit is defective 5 2 4 Only Indoor unit does not run Indoor PCB Ass y is defective 2f HEAT Is room temperature too high NO Try to raise setting temperature by temperature setting button Ga button Outdoor unit still does not run Try to run using another remote contr
7. 2000 Btu h Units mm 3 ELECTRICAL DATA 3 1 Elect BOOSTER CABLE larve sr ken EIL Wiring Diagrams POWER SUPPLY OUTDOOR UNIT 7 t sal Lal m z THZ E ROOM 21 LO u 5 GLOD ES 2 b afa a n 1 55 2 Emm 2 i or S Zon Se RECE I VER BOX mmek BLK BLK BLK Pe SWITCH 15 4 FUNCTION 4 1 Room Temperature Control Cooling Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit The room temperature and other information is transmitted every 5 minutes by the remote control unit to the controller in the indoor unit Signal from remote control unit 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes Thermo Thermo Thermo Thermo Thermo Thermo Thermo OFF ON OFF ON ON ON OFF T 1 C sei temp C More than 5 minutes 5 minutes 3 minutes Room temp pu E ore fon or Outdoor fan OFF Indoor fan Set speed The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 3 minutes To protect the compressor from stalling out when trying to start against the high side refrigerant pressure the control circuit has a built in automatic time delay to allow the internal pressure to equalize As a p
8. HPN4E G Fan amp Fan Motor Type Centrifugal fan Dia and lenght 2 0 160 L 240 Fan motor model Q ty 3RGB CO 45 30 5V 1 1 No Of poles rpm 230 V 4 1060 1000 910 Running Amps HIGH speed 0 45 Power input HIGH speed 110 Coil resistance Ambient temp 20 C BLU BRN 95 BRN BLK 37 BLK GRY 15 GRY VLT 15 WLT RED 30 RED YEL 101 oafety devices Type Internal thermal protector AM 037 A 5 Operating temp Open 150 5K Run capacitor 1 8 450 Aluminium plate fin Copper tube 1 6 0 126 DATA SUBJECT TO CHANGE WITHOUT NOTICE Fan speeds H M L measured at operating conditions HIGH speed 5mmH20 external static pressure ADR609HL Controller PCB Part No XR99EH SA Controls Microprocessor Control circuit fuse 250 V 3 15 A Remote Control Unit RCS 6HPN4E G Fan amp Fan Motor Centrifugal fan Dia and lenght 2 0 160 L 240 Fan motor model Q ty 3RGB CO 45 30 5V 1 1 No Of poles rpm 230 V 4 1060 1000 910 Running Amps HIGH speed 0 45 Power input HIGH speed 110 Coil resistance Ambient temp 20 C BLU BRN 95 BRN BLK 37 BLK GRY 15 GRY VLT 15 WLT RED 30 RED YEL 101 oafety devices Type Internal thermal protector AM 037 A 5 Operating temp Open 150 5K Run capacitor 1 8 450 Aluminium plate fin Copper tube 1 6 0 126 DATA SUBJECT TO CHANGE WITHOUT NOTICE Fan
9. L 21 4 8 Defrosting Operation Heating Reverse cycle Defrosting Defrosting Sequence Heating Operation COmpressor ON 4 Way valve ON Frost Detection Frosting is assumed mostly under the following condition indoor heat exchanger coil temperature drops 0 8 c per 6 minutes and it repeats 3 times in succession integrated operating time of compressor is longer than 3 hours temperature of indoor heat exchanger coil immediately before thermo goes off is below Td 5 6 C etc NOTE The values shown as Td differs according to the models DI AD ADR609HL AD ADR612HL Reverse cycle defrosting operation COmpressor O outdoor fan OFF 4 way valve OFF indoor fan cold draft prevention mode Releasing of defrosting Defrosting operation lasts 8 to 12 minutes max COmpressor current during reverse cycle defrosting operation exceeds certain ampere 22 B Defrosting Mode Timing Chart Start of defrosting Release of defrosting 60 seconds Max 8 to 12 minutes 60 seconds Outdoor fan O OFF ON ET 4 way valve T DEE i x Indoor fan OFF Set speed Standby lamp OFF OFF Indoor heat p un exch coil 2 temp Tc C 320 2 2 Li Release of cold draft prevention NOTE 1 Refer to 4 7 Cold Draft Prevention 4 9 Drain Pump and Float Switch Compressor Drain Pump Float Switch Either in Heating or another mode or the unit is stopped when the float
10. TECHNICAL DATA amp SERVICE MANUAL INDOOR UNIT AD609HL ADR609HL AD612HL ADR612HL SPLIT SYSTEM AIR CONDITIONER 0 8180 300 1 12 2003 IMPORTANT Please read before installation This air conditioning system meets strict safety and operating standards For the installer or service person it is important to install or service the system so that it operates safely and efficiently For safe installation and trouble free operation you must Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes Pay close attention to all warning and caution notices given in this manual he unit must be supplied with a dedicated electrical line AN This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death JW CAUTION This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage If necessary get help These instructions are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sale service outlet or your certified dealer for additional instructions In case of improper installation The manufacturer shall in no way be responsible for improper installation or maintenance service including failure to follow the instructions i
11. Y 15 GRY VLT 15 WLT RED 30 RED YEL 101 oafety devices Type Internal thermal protector AM 037 A 5 Operating temp Open 150 5K Run capacitor 1 8 450 Aluminium plate fin Copper tube 1 6 11 0 126 DATA SUBJECT TO CHANGE WITHOUT NOTICE 9 Fan speeds H M L measured at operating conditions HIGH speed 5mmH20 external static pressure 1 3 Other Component Specifications AD ADR609HL AD ADR612HL ATR J105 Rating Primary AC 230V 50 60Hz Secondary 19V 0 526A Capacity 10 VA Coil resistance Q at 21 C Primary WHT WHT 205 10 Secondary BRN BRN 2 0 10 Thermal cut off temp 150 C Thermistor Coil sensor TH1 41 514 Resistance KQ 0 C 15 3 5 Thermistor Room sensor TH2 DTN TKS134B Resistance KQ 25 C 5 0 3 Model PC 309564003 Rating Voltage 220 240V 50Hz Input 14W Total head capacity 0 4 l min Safety float switch Model 1300 2725 Contact rating 230V AC DC 0 5A 12 1 4 Indoor Fan Performance If external static pressure is too great due to long extension of ducts for example the air flow volume may drop too low at each air outlet This problem may be solved by increasing the fan speed using the following procedure 1 2 3 Remove the screw on the electrical component box and remove the cover plate Disconnect the fan motor sockets in the box Take out the booster cable so
12. ckets at both ends clamped in the box Securely connect the booster cable sockets between the disconnected fan motor sockets in step 2 as shown in the Fig 1 1 Place the cable neatly in the box and reinstall the cover plate EXTERNAL STATIC PRESSURE mm W G MEMS HH Using the booster cable H At shipment How to read the diagram The vertical axis is the external static pressure Pa while the horizontal one is the AIR FLOW RATE m3 h The characteristic curves for HH H M and L fan speed are shown 10 Electrical component box Fan motor socket At shipment Connected booster cable Fig 1 1 22 Booster cable 1743 M I 200 400 600 800 Fig 1 2 The nameplate values shown are based on the H air flow rate For the type 09 12 flow rate is 600m3 h while the external static pressure is 49 Pa at H position If external static pressure is too great due for example to long duct extension the air flow rate may drop too much at each air outlet This problem can be solved increasing the fan speed with the booster cable 13 1000 2 DIMENSIONAL DATA 782 REAR VIEW e e 435 5 1 636 900 TOP VIEW AIR CONVEYOR OPTIONAL PART 200 14 782 70 FRONT VIEW FRESH AIR INTAKE PORT REFRIGERANT TUBING SIDE I D 18mm CONDENSATE DRAIN PIPING NARRO TUBING JOINT DE T UBE D 9 52mm 3 8 9000Btu h O D 12 7mm 1 2 1
13. defective e Measure insulation resistance of electrical parts in outdoor unit 2 Remove inter unit wires from terminal plate in indoor unit NO Insulation of indoor unit is defective Then pull the power plug out of the wall outlet Measure insulation resistance of indoor unit Measure insulation 24 resistance of electrical parts in indoor unit B Circuit breaker trips in several minutes after turning the air conditioner on There is a possibility of short circuit Check capacity of circuit breaker Replace with suitable one larger capacity Capacity of circuit breaker is suitable In case of Heating operation Measure resistance of outdoor fan e Measure resistance of 4 way valve s motor winding winding Measure resistance of compressor motor winding 5 2 2 Neither indoor nor outdoor unit runs A Power is not supplied Circuit breaker is tripped Reset breaker Check power supply Power is being supplied to the indoor unit Wait for recovery Power failure or contact power company B Check OPERATION selector switch in the receiver ON icc SES Indoor PCB Ass y is defective NO Set OPERATION selector switch to ON 25 C Check remote control unit Try to run with another remote control unit OK First remote control unit is defective Check for residue buildup on transmitter of remote control unit Check for
14. g 5 m Fig 6 Multimeter 6 3 Checking Motor Capacitor Remove the lead wires from the capacitor terminals and then place a probe on the capacitor terminals as shown in fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is good if the pointer bounces to a great extent and then gradually returns to its original position The range of deflection and deflection time differ according to the capacity of the capacitor Compressor motor capacitor Fan motor capacitor Fig 7 34 7 1 Changing Address of Remote Control Unit in Indoor Unit If you are installing more than 1 indoor unit up to 2 in the same room it is necessary for you to assign each unit its own address so each can be operated by its own separate remote control unit You assign the addresses by matching the remocon address on the PCB of each indoor unit with the switch positions of its remote control unit To change address on PCB 1 Set the switch n 2 to off position on the address dip switch S01 see detail on figure PED ASSI To change address on Remote Control Unit NB Once changed you cannot restore the original address 1 Remove the batteries before changing the address 2 Remove tab marked A to change the address of the remote control unit when
15. hen the compressor current exceeds either H1 A for 2 seconds or H2 A for 8 seconds both compressor and outdoor fan stop Trip At the same time operation lamp in front of the indoor unit flashes After 3 minutes this function automatically releases and resumes operation until tripping repeats 8 times If the tripping repeats 9 times or more the unit stops its operation Tip H1 A Compressor Current A H2 A 7 Sec A The compressor current shown as H1 and H2 in the chart differ by models HEN AD ADR609HL AD ADR612HL 16A 22 A 10 19 4 6 Overload Prevention Heating Overload prevention avoids overheating of the indoor heat exchange coil This function works either when the temperature of indoor heat exchange coil rises up or compressor current rises to a certain level Temperature of indoor heat exchange coil sensor When the temperature of the indoor heat exchange coil rises above A2 C and if the indoor fan is L low speed the fan speed changes from L low speed to M medium speed When the temperature of the indoor heat exchange coil rises above 1 the outdoor fan stops A1 A2 Indoor heat exch coil temp C A3 A4 Outdoor fan Indoor HH MoM LOM Compressor NOTE The operation temperatures shown as A1 A2 A3 and A4 in the chart differs by models AD ADR609HL AD ADR612HL A1 58 C A2 56 C A3 50 C A4 42 C
16. hing m h 600 510 440 Pa mm W G 49 5 at shipment 69 7 with booster cable Microprocessor thermostat Wireless remote control unit ON OFF 24 hours amp Daily program 1 hour OFF 3 and Auto 1 Hi Washable Operation sound High Med Low 04 52 49 Refrigerant tubing connections Flare type Refrigerant tube diameter Narrow tube 6 35 1 4 Wide tube 9 52 3 8 Refrigerant Dimensions amp Weight Dimensions Height Width Depth R407C Package dimensions Height Width Depth Volume Net Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE Power level measured at operating conditions HIGH speed 5mmH20 external static pressure and inside discharge air duct AD612HL 220 240V 50Hz Voltage rating 230V oee catalogue with the requested matching m h 600 510 440 a mm W G 49 5 at shipment 69 7 with booster cable Performance Capacity Air circulation High Med Low External static pressure High Controls Temperature controls Microprocessor thermostat Wireless remote control unit ON OFF 24 hours amp Daily program 1 hour OFF 3 and Auto 1 Hi Washable Operation sound High Med Low 04 52 49 Refrigerant tubing connections Flare type Refrigerant tube diameter Narrow tube 6 35 1 4 Wide tube 12 7 1 2 Refrigerant Dimensions amp Weig
17. ht Dimensions Height Width Depth R22 Package dimensions Height Width Depth Volume Net Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE Power level measured at operating conditions HIGH speed 5mmH20 external static pressure and inside discharge air duct ADR612HL 220 240V 50Hz Voltage rating 230V Performance Capacity Air circulation High Med Low External static pressure High Controls Temperature controls See catalogue with the requested matching m h 600 510 440 Pa mm W G 49 5 at shipment 69 7 with booster cable Microprocessor thermostat Wireless remote control unit ON OFF 24 hours amp Daily program 1 hour OFF 3 and Auto 1 Hi Washable Operation sound High Med Low 04 52 49 Refrigerant tubing connections Flare type Refrigerant tube diameter Narrow tube 6 35 1 4 Wide tube 12 7 1 2 Refrigerant Dimensions amp Weight Dimensions Height Width Depth R407C Package dimensions Height Width Depth Volume Net Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE Power level measured at operating conditions HIGH speed 5mmH20 external static pressure and inside discharge air duct 1 2 Major Component Specifications AD609HL Controller PCB Part No XR99EH AR Controls Microprocessor Control circuit fuse 250 V 3 15 A Remote Control Unit RCS 6
18. is removed the address is automatically set to B 3 After inserting the batteries press ACL button 2 gt ACL button 35 argo clima spa Via Varese 90 21013 Gallarate Va Italy Tel 39 0331 755111 Fax 39 0331 776240 www argoclima it
19. n this document SPECIAL PRECAUTIONS e During installation connect before the refrigerant system and then the wiring one proceed in the reverse orden when removing the units BEZENN when wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY QUALIFIED EXPERIENCED ELECTRICIANS SHOULD ATTEMPT TO WIRE THIS SYSTEM e Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked to ensure the grounding e Highly dangerous electrical voltages are used in this system Carefully refer to the wiring diagram and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury and death Ground the unit following local electrical codes The Yellow Green wire cannot be used for any connection different from the ground connection Connect all wiring tightly Loose wiring may cause overheating at connection points and a possible fire hazard Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan Do not use multi core cable when wiring the power supply and control lines Use separate cables for each type of line When transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminium fins on the air conditioner can cut your fingers When installing
20. nt pressure the control circuit has a built in automatic time delay to allow the internal pressure to equalize As a protective measure the control circuit switches the compressor OFF not before than 5 minutes of compressor operation Thermo ON When the room temperature is below T 1 C T C is set temperature Compressor ON Thermo OFF When the room temperature is equal to or above set temperature T C Compressor gt OFF NOTE 1 Refer to 4 7 Cold Draft Prevention 17 4 2 Dry Operation Dehumidification Dry operation uses the ability of the cooling cycle to remove moisture from the air but by running at low level to dehumidify without greatly reducing the room temperature The air conditioner repeats the ON OFF cycle automatically as shown in the chart below according to the room temperature Room temp Cooling operation T 2 C Dry A zone Compressor Continuous operation FMI indoor fan L low speed LL very low speed intermittent ventilation Set temp T C only while the compressor is ON T 1 C Dry B zone Compressor Intermittent operation ON for 3 minutes and OFF for 9 minutes FMI indoor fan L low speed LL very low speed intermittent ventilation only while the compressor is ON Room temp 15 C Monitor zone Both the indoor and outdoor units stop NOTE Intermittent ventilation occurs by switching the indoor fan speed between L lt gt LL D
21. ol unit OK Remote control unit is defective 5 3 Some part of air conditioner does not operate 5 3 1 Only indoor fan does not run Check fan casing foreign matter on Remove foreign matter or repair Fan cannot Check fan rotation be turned Turn fan gently once or twice by hand inside Fan motor burnout or foreign matter in Repair or replace bearings Measure resistance of indoor fan motor winding Check fan motor capacitor BIS PCB assy is defective 5 3 2 Only outdoor fan does not run Check fan casing foreign matter on Remove foreign Fan cannot matter or repair Check fan rotation be turned Turn fan gently once or twice by hand inside Fan motor burnout or foreign matter in Repair or replace bearings Measure resistance of outdoor fan motor winding Check fan motor capacitor 28 5 3 3 Only compressor does not run Check compressor motor Overload relay is working capacitor C1 either OLR T or OLR A YES Measure resistance of Temperature of compressor compressor motor winding is abnormally high YES Refrigerant gas shortage YES Charge refrigerant gas NO Measure power supply voltage NO Rotor may be locked up The voltage is too low 5 3 4 Compressor and outdoor fan do not run Float switch turned ON YES Check if drain pump Replace the drain pump runs normaly YES Verify if drain condensate tube
22. ormance of air conditioner is conditioner with larger normal Capacity 5 4 3 Excessive cooling or heating Set temperature to higher or Set t ture is suitabl M lower value using temperature apes setting buttons of the remote control unit Remote control unit is placed where Change position of remote it can detect room temperature E properly control unit 31 5 5 If a sensor is defective 5 5 1 Thermistor TH1 or TH2 is defective Operation lamp on front side of YES Indoor coil thermistor TH1 or room indoor unit is blinking air thermistor TH2 is defective YES Replace the thermistor NOTE Alarm Signal Operation lamp on the front side of the indoor unit will blink when either indoor coil thermistor or room air thermistor is defective At the same time the outdoor unit will stop Indoor unit will operate only for ventilation 32 6 CHECKING ELECTRICAL COMPONENTS 6 1 Measurement of Insulation power plug Resistance Local supply The insulation is in good condition if the resistance exceeds 2MQ Insulation tester NOTE The shape of the power plug may differ from that Clamp the grounding terminal of the power plug of the air conditioner which you are servicing Fig 1 with a lead clip of the insulation resistance tester and measure the resistance by placing a probe on both the two power terminals fig 1 6 1 1 Power supply wires Terminal plate
23. rotective measure the control circuit switches the compressor OFF not before than 5 minutes of compressor operation Thermo ON When the room temperature is above T 1 C T C is set temperature Compressor ON Thermo OFF When the room temperature is equal to or below set temperature T C Compressor gt OFF 16 E Heating Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit The room temperature and other information is transmitted every 5 minutes by the remote control unit to the controller in the indoor unit Signal from remote control unit More than 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes 5 minutes Thermo Thermo Thermo Thermo ON OFF ON OFF EE EET stem i tce O e ai T 2 C ff ff 5 minutes 5 minutes of Room temp Outdoor fan OFF 30 second 30 seconds Indoor fan Setspeed m Setspeed pm pm ms rm rm mm mm mm mm mm mm mm mm rm _ _ 7 ER Standby lamp ndoor heat exch oil temp 1 Tc BO BN Solenoid coil 4 way valve ON Reversing cycle Operation button OFF ON The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 5 minutes To protect the compressor from stalling out when trying to start against the high side refrigera
24. ry operation does not occur when the room temperature is under 15 C which is the monitor zone When the compressor stops the indoor fan stops as well 4 3 Automatic Switching between Cooling and Heating When AUTO mode is selected the microprocessor calculates the difference between the set temperature and the room temperature and automatically switches to COOLING or HEATING mode to maintain the desired temperature Room temp gt Set temp COOL Room temp lt Set temp gt HEAT This means that if the room temperature is higher than or equal to the set temperature COOLING operation begins If the room temperature is lower than the set temperature HEATING operation begins 4 4 Freeze Prevention Cooling and Dry This function prevents freezing of the indoor heat exchange coil When the compressor has been running for 6 minutes or more and the temperature of the indoor heat exchange coil falls below 1 C the control circuit stops the compressor for at least 6 minutes The compressor does not start again until the temperature rises above 8 C or 6 minutes has elapsed Thermo OFF Hoom temp Thermo ON oe 4 4 4 Set temp C More than 6 minutes Indoor heat exch 1 C More than 6 minutes LEER JI Compressor ON ON OFF ON 4 5 Compressor Overcurrent Protection Cooling Dry and Heating This function prevents the compressor from being damaged by overcurrent W
25. speeds H M L measured at operating conditions HIGH speed 5mmH20 external static pressure AD612HL Controller PCB Part No XR129EH AR Controls Microprocessor Control circuit fuse 250 V 3 15 A Remote Control Unit RCS 6HPN4E G Fan amp Fan Motor Centrifugal fan Dia and lenght 2 0 160 L 240 Fan motor model Q ty 3RGB CO 45 30 5V 1 1 No Of poles rpm 230 V 4 1060 1000 910 Running Amps HIGH speed 0 45 Power input HIGH speed 110 Coil resistance Ambient temp 20 C BLU BRN 95 BRN BLK 37 BLK GRY 15 GRY VLT 15 WLT RED 30 RED YEL 101 Safety devices Type Internal thermal protector 7AM 037 A5 Operating temp Open 150 5K Run capacitor 1 8 450 Aluminium plate fin Copper tube 1 6 0 126 DATA SUBJECT TO CHANGE WITHOUT NOTICE Fan speeds H M L measured at operating conditions HIGH speed 5mmH20 external static pressure 10 ADR612HL Controller PCB Part No XR129EH SA Controls Microprocessor Control circuit fuse 250 V 3 15A Remote Control Unit RCS 6HPN4E G Fan amp Fan Motor Centrifugal fan Dia and lenght 2 160 1 240 Fan motor model Q ty 3RGB CO 45 30 5V 1 1 No Of poles rpm 230 V 4 1060 1000 910 Running Amps HIGH speed 0 45 Power input HIGH speed 110 Coil resistance Ambient temp 20 C BLU BRN 95 BRN BLK 37 BLK GR
26. switch is turned ON the drain pump operates for 20 minutes minimum 23 9 TROUBLESHOOTING 5 1 Check before and after troubleshooting WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect power or turn off circuit breaker before you start checking or servicing 5 1 1 Check power supply wiring Check that power supply wires are correctly connected to terminals L and on the terminal plate in the indoor unit 5 1 2 Check inter unit wiring Check that inter unit wiring is correctly connected to the outdoor unit from the indoor unit 5 1 3 Check power supply Check that voltage is in specified range 10 of the rating Check that power is being supplied 5 1 4 Check lead wires and connectors in indoor and outdoor units Check that coating of lead wires is not damaged Check that lead wires and connectors are firmly connected Check that wiring is correct 5 2 Air conditioner does not operate 5 2 1 Circuit breaker trips or fuse blows A When the circuit breaker is set to ON it trips immediately Resetting is not possible There is a possibility of ground fault Check insulation resistance If resistance value is 2MQ or less insulation is defective NO WARNING Set circuit breaker to OFF Remove inter unit wires from terminal plate in outdoor unit Measure insulation resistance of outdoor unit NO Insulation of outdoor unit is
27. the unit to check or repair electrical parts and wiring Keep your fingers and clothing away from any moving parts Clean up the site after the work remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced e Ventilate the room during the installation or testing the refrigeration system make sure that after the installation no gas leaks are present because this could produce toxic gas and dangerous if in contact with flames or heat sources Table of Contents 1 SPECIFICATIONS 1 1 Unit specifications 1 2 Major Component specifications 1 3 Other Component specifications 1 4 Indoor Fan performance 2 DIMENSIONAL DATA 3 ELECTRICAL DATA 3 1 Electric Wiring Diagrams 4 FUNCTION 4 1 Room Temperature Control 4 2 Dry Operation Dehumidification 4 3 Automatic Switching between Cooling and Heating 4 4 Freeze Prevention Cooling and Dry 4 5 Compressor Overcurrent Protection Cooling Dry and Heating 4 6 Overload Prevention Heating 4 7 Cold Draft Prevention Heating 4 8 Defrosting Operation Heating 4 9 Drain Pump and float switch 5 TROUBLESHOOTING 5 1 Check before and after troubleshooting 5 2 Air conditioner does not operate 5 3 Some part of air conditioner does not operate 5 4 Air conditioner operates but abnormalities are observed 5 5 If a sensor is defective 6 CHECKING ELECTRICAL COMPONENTS 6 1 Measurement of Insulation Resistance 6 2 Checking Continuity of Fuse
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