technical data & service manual indoor unit: asias8
Contents
1. When installing 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 In a room Properly insulate any tubing run inside a room to prevent sweating which can cause dripping and water damage to walls and floors In 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 In 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 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 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 Ventilate the room during the installation or testing the refrigeration system make sure that after the installation no gas leaks are2. 16 4 18 Diagnostic With this feature is possible to have a visual signal that a trouble is occurring This mode is always active and the signalling is made through the display board LEDS In case of no troubles the LEDS status follows its normal function The detected troubles are showed to the user technician using the 3 leds of the indoor unit receive and the 5 leds on the outdoor pcb For each fault there are different effects upon the operation of the A C NOTES The troubles are showed according to a priority list that is in case of more than one trouble present is always showed at first the one with the highest priority 1 gt 2 gt 3 etc Sensor damaged means a situation where sensor is short circuited or opened Incase of damaged sensors the system CM FMO FMI etc if in OFF state does not start FEES LEDS status Effects INDOOR UNIT FAULT pa opr LD3 timer LD1 stby RAT probe damaged F O System does not operate To restart the system probe damaged F F O power re setting off on is required The A C switches off As soon as fault is 1 faultonoutdoorunit F cleared the system automatically restart wrong mode selected F F system does not operate To restart the system select correct mode O LED off F LED blinking e LED on 17 4 19 Indoor Unit Jumpers Configuration Unit is shipped with jumpers set according to the following table JP1 JP2
3. ROOM TEMP gt SPT 2 C LEVEL 0 Operation according to COOLING mode CM on at constant speed lt SPT 2 C FMO on at constant speed gt SPT 1 C FMI switches between L and LL every 30 seconds RV off CM switches 9 minutes off and 3 minutes on lt SPT 1 C FMO switches 9 minutes off and 3 minutes ON gt 15 C FMI switches between L and LL every 30 seconds RV off CM off FMO off FMI off RV off SPT Set Point Temperature 4 6 Fan Mode Operation With this mode the indoor fan is turned on while CM FMO and RV stay off all the time The user can select between 3 speeds HIGH MEDIUM and LOW 4 7 Auto Fan speed With this option selected the indoor fan speed changes automatically according to the compressor speed as shown in the following graphs A COOLING fan motor speed D fan motor speed HEATING LOW LLOW I I _ low high low Rpm compressor compressor to prevent the supply of cool air the FMI speed is setted as shown only if the indoor coil temperature ICT 2 32 C see COLD DRAFT PREVENTION feature for details 12 4 8 Forced Mode In this mode the system operates COOLING or HEATING mode fixed settings or is switched off by means of the MODE button on the indoor unit control board The operation modes can be selected pressing the button in a cyclic way OFF gt COOL gt HEAT gt OFF
4. r ZAC e j o z m E JUMPER STATUS JP1 open JP1 open JP2 open JP2 open 4 20 Outdoor Unit Jumpers Configuration Unit is shipped with jumpers set JUMPERS f SETTINGS according to the following table JP1 JP2 JP3 OAT CDT OCT DL3 DL4 DLS 016 017 JPI JP2 bo oo O Pei gi open it 200 1 JP3 JUMPER STATUS EXP VALVE INIT 0000 GG 120 T 2 a gico mannana coo Gib 130 IPS open 18 5 INDOOR UNIT AND REMOTE CONTROL ADDRESS 5 1 Address Switches only for multisplit INDOOR UNIT A INDOOR UNIT B Check that the setting of switches SW1 and SW3 the pcb Set the switches SW1 and SW3 on the pcb and dip switch of remote control correspond to the figure and dip switch of remote control as shown in the figure indoor unit PCB indoor unit PCB SW1 SW3 SW1 SW3 17 off 1 off 1 1 on 2 off 2 off 2 off 2 off PCB factory state remote control unit remote control unit dip switch is located on the battery compartment dip switch is located on the battery compartment 17 off 17 on 2 off 2 off 3 on 3 on 4 on 4 on remote control factory state 5 2 Refrigerant Circuit Check only for multisplit 1 Power ON the system 2 Set the remote controller of the unit A as following unit B must be OFF mode COOLING filter ON set point 32 C
5. 3 Press FAN IFEEL button for at least 5 seconds pointing the remote control unit directly at the air conditioner receiver System starts and runs for 3 minutes After 3 minutes operation in case the setting is right the unit switches to COOL mode and stops set point 32 C the system is ready to operate in case the setting is wrong the STANDBY lamp flashes check the setting of indoor units and the connections of the refrigerant circuits 5 3 Changing the Address of the Air Conditioner In case of more than one air conditioner operating in the same room it may be necessary to assign an address to each unit in order to avoid operation conflicts Address is set acting on the dip switches located on the indoor PCB and on the remote controller The PCB settings must match the corresponding ones on the wireless remote controller How to change address of the air conditioner Set the PCB and the remote control to the address desidered UNIT ADDESS SW3 PCB DIP SWITCH REMOCON 1 2 2 3 unit A unit B available available For monosplit all combinations are available 19 6 TROUBLESHOOTING 6 1 CHECK BEFORE AND AFTER TROUBLESHOOTING A Check power supply wiring Check the power supply wires are correctly connected B Check power supply Check that voltage is in specified range 10 of the rating Check that power is being supplied WARNING If the following troubleshooting must be done
6. CASE 1 Normal leds configuration see section 6 4 YES Wait some minutes to restore normal condition CASE 2 There is a fault signaling see section 6 6 21 6 3 SYSTEM DOES NOT RUN 3 IN INDOOR UNIT THERE IS ONE LED BLINKING AT LEAST For the meanings of the faults see paragraph 4 17 TEMPERATURE FAULT ON THE COMMUNICATION SENSOR DAMAGED OUTDOOR UNIT ERROR Is the Y Y YES communication fuse blown Check sensor connection and See section 6 6 measure its resistance NO The fuse may be not fitted rightly in the fusehol Replace the in the fuseholder sensor Check for right connection of communication wires Check outdoor unit Is there any led on YES Y Turn off power supply and after 3 minutes turn on again Outdoor unit PCB assy is defective Replace outddor unit PCB 22 Replace fuse 100mA NO gt gt See section 6 5 6 4 OUTDOOR UNIT DOES NOT RUN AND NO FAULT IS DISPLAYED Turn off power supply and after 3 minutes turn on again Does the external unit run NO YES but for few minutes Check compressor
7. 600 600 730 FRESH AIR INTAKE SIDE SUSPENSION BRACKET ELECTRICAL COMPONENT BOX SIDE mM N cO O LN SUSPENSION BOLT REFRIGERANT TUBING SIDE CEILING NUTS AND WASHERS REFRIGERANT TUBING SIDE FRESH AIR INTAKE PORT DRAIN PIPING REFRIGERANT TUBING JOINT TA NARROW TUBE i WY 0 0 6 35mm 1 4 o9 I D 18mm x CONDENSATE 070 PRESPLITTING 90 REFRIGERANT TUBING JOINT WIDE TUBE 9 52mm 3287 3 ELECTRICAL DATA 3 1 Electric Wiring Diagrams LINN N17 YO00LNO OL JOHLNOD 9 NH8 134 Nu9 I y PT Naad ojo W O NYd4 TaAJNIN ELHMANIN LH col hho 4 FUNCTION 4 1 System operation control The inputs to the systems come from indoor and outdoor sensors The outdoor unit is the system MASTER while the indoor one is the SLAVE Communication between units is made with a 2 poles RS485 bus The indoor units receives the user input fan speed flap position etc through remote controller which sends signal every time a button is pressed and in any case automatically every 5 minutes 4 1 1 control specification During operation compressor speed can be subjected to change due to thermal load variations or protection activations but in any case e The minimum time interval between an OFF and a ON operation is not lower than 3 minutes e The minimum operating time is not lower than 3 minutes The maximum acceleration deceleration rate is fixed at 20rpm
8. The settings are COOLING mode SET POINT temperature 25 C FAN SPEED HIGH FLAP POSITION 3 HEATING mode SET POINT temperature 21 C FAN SPEED HIGH FLAP POSITION 4 4 9 Protection operations indoor unit 4 9 1 Freeze up This protection prevents ice formation on the indoor coil heat exchanger The protection is activated as soon as the indoor coil temperature ICT decreases and acts by decreasing the compresor speed The system exit this protection routine when ICT temperature rises above 5 C 4 9 2 Cold draft This feature prevents the supply of cold air forcing the indoor fan to a speed which cannot be changed by the user If the ICT temperature goes down 32 C in descending or does not reach 37 C in rising the speed fan is set as shown below Protection level Remote controllerset sea x LOW i LLOW 2 i z E ICT 4 9 3 Overheat This feature prevents the build up of high pressure in the indoor heat exchanger during heating operatior As soon as the indoor coil temperature ICT increases compressor speed is reduced in order to avoid heat exchanger overheating System stops compressor operation when ICT reaches 60 C 13 4 10 Protection operations on outdoor unit 4 10 1 Overheating During cooling operation as soon as the outdoor coil temperature OCT increases compressor speed is reduced in order to avoid heat exchanger overh
9. faults see paragraph 4 18 TEMPERATURE ell ON THE pri INDOOR DAMAGED UNIT Check sensor connection and measure its resistance Replace the sensor COMPRESSOR FAN PEOR OVERCURRENT OVERTEMPERATURE PFC FAULT See section 6 3 YES Is the communication fuse blown NO Y Measure the resistance of compressor fan 100mA Replace fuse The fuse may be not fitted rightly in the fuseholder Measure the resistance of motor windings Is inductor Is it it defective NO NO YES YES Replace the Replace Replace the Replace compressor outdoor unit dist outdoor unit fan PCB PCB Check for right connection of communication wires Turn off power supply and after 3 minutes turn on again 24 6 7 AIR CONDITIONER OPERATES BUT ABNORMALITIES ARE OBSERVED 1 POOR COOLING OR HEATING Check the remote Try with Does the indoor unit controller settings another 93 receive the signal NO 9 See address remote ashy MAy De may De chapter 6 sani defective defective YES Is the remote controller Change the directly under the airfl
10. operation CASE 3 CASE 1 for 3 minutes at least easure resistance o indoor fan motor Is it CASE 2 defective YES Y Compressor Compressor tries to start A Compressor every 3 int ittenti doesn t run NO Change fan minutes intermittently motor Indoor unit PCB assy is Gheckihe defective he fan could be braked b compressor foreign matter j electrical easure the resistance o connection compressor motor Can the fan be turned on windings Is it defective NO Y YES Replace the Y YES compressor NO Remove the Y Y foreign Check outdoor fan pone matter motor electrical decine connection Y Replace the fan motor 6 5 ONLY OUTDOOR UNIT IS OFF EMI filter check up YES Check fuse on outdoor pin1 2 lower than 0 5 ohm pcb Is the fuse blown pin3 4 lower than 0 5 ohm all other pin combination no continuity NO Y There is a possibility of short circuit Check EMI filter Is it defective NO Check all the electrical parts compressor YES fan motor Y inversion valve coil Y crank case heater Outdoor unit PCB assy Base heater Change EMI filter is defective defrost valve coil 23 6 6 FAULT ON OUTDOOR UNIT IN OUTDOOR UNIT THERE IS ONE LED BLINKING AT LEAST For the meanings of the
11. 23 6 6 Fault on outdoor unit 24 6 7 Air Conditioner operates but abnormalities are observed 25 6 8 Noise problem 27 7 CHECKING ELETRICAL COMPONENTS 28 7 1 Measurement of Insulation Resistance 28 7 2 Checking Continuity of Fuse on PCB Assy 28 7 3 Checking motor capacitor 28 1 SPECIFICATIONS 1 1 Unit Specifications ASIAS8 220 240 V 50 Hz Voltage rating 230 V Performance Capacity See catalogue with the requested matching Air circulation High Med Low 700 600 500 Controls Temperature controls Microprocessor thermostat Control unit Wireless remote control unit Timer ON OFF 24 hours amp Daily program 1 hour OFF Fan speed 3 and Auto Airflow direction Auto Air Filter Washable Anti Mold Power noise level High Med Low 53 49 46 Refrigerant tubing connections Flare type Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 9 52 3 8 Refrigerant R410A Refrigerant tube kit Air clean filter Optional Dimensions amp Weight Dimensions Height Width Depth Ceiling panel Height Width Depth Package dimensions Unit Height Width Depth Volume Ceiling panel Height Width Depth Volume Unit Net Shipping Ceiling panel Net Shipping DATA SUBJECT TO CHANGE WITHOUT NOTICE 1 2 Major Component Specifications ASIAS8 Controller PCB Part No SAC DCI IDU Controls Microprocessor Control circuit fuse 250 V 3 15 A R
12. FUSE Then pull out the fuse from PCB assy Check continuity of fuse by the multimeter fig 6 7 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 the gradually returns to its original position The range of deflection and deflection time deffer according to capacity of the capacitor 28 PCB ASS Y EATHER LINE PROBE TERMINAL PLATE c Ww PROBE Pa E CLIP a COPPER TUBE METALLIC PART CLP sait COPPER TUBE OR INSULATION METALLIC PART TESTER Fig 3 FROM FAN MOTOR COMPRESSOR AND OTHER PARTS METALLIC PART INSULATION TESTER Fig 4 FUSE Fig 5 Fig 6 COMPRESSOR MOTOR CAPACITOR FAN MOTOR CAPACITOR Fig 7 argorciimi spa Via Varese 90 21013 Gallarate Va Italy Tel 39 0331 755111 Fax 39 0331 776240 www argoclima it
13. ISY Check that all the pannel are fixed ____ k Check the position of cushion rubbers under the compressor Check that internal tubes are not touching each other or with other components 27 Add dampers under the unit 7 CHECKING ELETRICAL COMPONENTS 7 1 Measurement of Insulation Resistance The insulation is in good condition if the resistance exceeds 1 Mohm a Power Supply Wires Clamp the earthed wire of the power supply wires with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the power wires fig 1 Then measure the resistance between the earthed wire and the other power wires fig 1 b Unit Clamp an alluminium plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on N terminal and then on Lterminal the terminal plate fig 2 c Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the disired electric part from terminal plate PCB assy capacitor etc Similary disconnect the connector Then measure the insulation resistance fig 1 to 4 Refer to electric wiring diagram NOTE If the probe cannot enter the poles because the hole is too narrow then use a probe with a thinner pin 7 2 Checking Continuity of fuse on PCB assy Remove PCB assy from electrical component box fig 5
14. TECHNICAL DATA amp SERVICE MANUAL INDOOR UNIT ASIAS8 SPLIT SYSTEM AIR CONDITIONER ASIAS8 38 7006 181 i Ea ee 0 8180 576 01 09 2012 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 e Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes e Pay close attention to all warning and caution notices given in this manual The 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 JN 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 fo
15. according to the following chart Overflow when Overflow when Overflow when THERMO is ON THERMO is OFF unit is OFF standby WS Open contact Closed OPERATION led CM FMO Thermostat Drain pump 1 I 1 La I T lt 10min gt 14 15 4 15 NIGHT Function When this setting is active indoor fan speed is automatically reduced in order to allow low noise operation Temperature control acts in the same way as NORMAL MODE but after 60 minutes of operation the air conditioner modifies automatically the set point temperature according to the following COOLING DRY 1 C HEATING 2 C 4 16 LED OFF function This is a special function mode which can be selected by the user pressing at the same for more than 5 seconds the IFEEL and FAN buttons on the remote controller With this option active the OPERATION TIMER and STANDBY lamps are switched off even during operation they activates only in case of diagnostic signaling 4 17 Capacity Test mode This is a special operating mode used when testing the performance of the A C In this case the main components of the A C compressor outdoor fan indoor fan operate at fixed settings This option is activated shorting the JP1 and JP3 jumpers on the outdoor pcb and setting the remote controller according to the following COOLING MODE Setpoint 10 C FEEL OFF HEATING MODE Setpoint 32 C I FEEL OFF JUMPERS SETTINGS EXP VALVE at
16. e same parameters The FMI will not be turned on until the indoor coil temperature is warm enough to prevent the supply of cold air see COLD DRAFT PREVENTION feature for details The indoor fan can change speed only after it has operated at the same speed for 30 sec if in AUTO and 1 sec for the other settings High Med Low 10 4 4 Auto Mode Operation only monosplit RAT SPT C ON OFF COOLING HEATING COOLING X Y In Auto Mode the unit switches automatically between the Auto Cooling and Auto Heating in order tc maintain the room temperature RAT at the prescribed set point SPT The switching between the two modes is according to the above graph and following table COOLING gt HEATING If 3 C lt Dt s 1 C and the compressor is off for more than 1 hour If Dt lt 3 C and compressor is off for more than minutes HEATING gt COOLING If 1 C lt Dt s 3 C and the compressor is off for more than 1 hour If Dt 2 3 C and compressor is off for more than 3 minutes Dt RAT SPT Refer to the sections 4 1 COOLING MODE and 4 2 HEATING MODE for system operation details 11 4 5 Dry Mode Operation Dry operation remove moisture from indoor air running in cooling mode at a low level without reducing the ambient temperature This is done cycling ON and OFF indoor and outdoor units according to below
17. eating System stops compressor operation when OCT reaches 60 C 4 10 2 Compressor discharge temperature During operation as soon as the discharge temperature increases CDT compressor speed is reduced in order to avoid overheating of the motor Compressor is stopped when CDT reaches 110 C 4 10 3 Compressor power module overheating The module temperature detected by a built in thermistor is always monitored by the control system and kept operating in a safe area If temperature exceeds 100 C operation is automatically stopped 4 10 4 Outdoor fan power module overheating The module temperature detected by a built in thermistor is always monitored by the control system and kept operating in a safe area If temperature exceeds 100 C operation is automatically stopped 4 10 5 Compressor power module overcurrent Operation is automatically stopped in case of current driven to each motor phase greater than a value depending on the power of the outdoor unit 9A for 12000btu and 11A for 18000btu 4 10 6 Outdoor fan power module overcurrent In case of current driven to each motor phase greater than 300mA operation is automatically stopped 14 4 11 Defrost The defrost process is controlled by a detection algorithm designed in order to mantain optimal utilization of the heat pump capacity especially during negative outdoor temperature conditions Compressor speed fixed Expansion valve opening fixed Outdoor fan switched off Indo
18. emote Control Unit SAC W REM V3 Fan amp Fan Motor Type Centrifugal fan Dia and lenght 1 280 L 166 Fan motor model Q ty BOM Y58413B220 1 No of poles rpm 230 V High med Low 4 950 790 700 Running Amps 230 V High med Low 0 31 0 28 0 25 Power input 230 V High med Low 72 63 58 Coil resistance Ambient temp 25 C BLU BLK 239 BRN WHT 19 WHT RED 101 GRY RED 29 BLK GRY 63 Safety devices Type Internal thermal protector Operating temp Open 130 10 Close Automatic Run capacitor 2 440 Stepping motor MP24Z2 DC 12V 400 7 Aluminium plate fin Copper tube 1 1 3 0 258 DATA SUBJECT TO CHANGE WITHOUT NOTICE 1 3 Other Component Specifications Trasformer TR Rating Primary AC 230 V 50 Hz Secondary 13 V 6VA Capacity Coil resistance Q at 25 C Primary Secondary Thermal cut off temp 120 C Thermistor Coil sensor Resistance ko Thermistor Room sensor Resistance ko o i 10a25 C Drain pump Model PC 309564003 Rating Voltage 220 240 V 50 Hz Input 14 W Total head capacity 0 4 l min Safety float switch Model P200AC 001 Contact rating 230 Vac 0 4A 2 DIMENSIONAL DATA ASIAS8 DIS SUSPENSION 206 BRACKET I A 7 70 275 SUSPENSION BRACKET 544 CEILING m NI 0 o re
19. llow the instructions in this document SPECIAL PRECAUTIONS During installation connect before the refrigerant system and then the wiring one proceed in the reverse orden when removing the units RZ when wiring ELECTRICAL SHOCK CAN CAUSE SEVERE ZAN PERSONAL INJURY OR DEATH ONLY QUALIFIED EXPERIENCED ELECTRICIANS SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked to ensure the grounding 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 e 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
20. or fan controlled by cold draft prevention Defrost valve switched on open Reversing valve switched on heating operation NOTE Minimum defrost time interval is 2 minutes During HIGH POWER operation the defrost detection is ignored until this mode remains active System exits defrost protection as soon as 14 C on the outdoor coil are detected and in any case if at least 12 minutes are elapsed from the start of the defrost cycle 4 12 FEEL function As standard configuration the air conditioner operates detecting the room temperature through the sensor equipped in the wireless remote controller icon FEEL shown on the display This feature provides a personalised environment since the temperature can be detected where the remote controller is located It is possible to de activate this option pressing the FEEL button on the remote controller In this case the FEEL icon is no longer displayed and room temperature is detected through the sensor included in the indoor unit 4 13 HI POWER mode When this mode is active the internal fan speed is set automatically and the air conditioner operates for 15 minutes at the maximum power After 15 minutes from the selection the mode is automatically switched off 4 14 DRAIN PUMP This unit is equipped with a drain pump The level detection is done through a float switch connected at the input WS closed under normal conditio and opened when water overflow System operation is
21. ow YES position of the of the unit remote controller NO Set fan speed in s the fan motor set in YES medium or high low speed speed NO CHOC the air hter YES Clean the air filters Are they clogged NO es tae There is the and YES possibilty of gas shortage resistance value correct NO Y Replace the expansion valve coil 25 6 7 AIR CONDITIONER OPERATES BUT ABNORMALITIES ARE OBSERVED 2 OPERATION DOES NOT SWITCH FROM HEAT TO COOL AND FROM COOL TO HEAT Remote controller Receiver assy Check the connection Check resistance of unit may be defective may be defective of reversing valve coil reversing valve coil 3 CHECK MODE BUTTON OPERATION ON THE UNIT Push the mode button gt The unit does not run gt gt assy is defective 4 CHECK REMOTE CONTROLLER UNIT The first remote controller is YES t defective or wrong address is set Try to operate with another remote controller Does the unit run NO Check the IR receiver on the indoor unit Is it dirty Clean the IR transmitter of the remote controller NO Check the IR transmitter of th remote controller Is it dirty Clean the IR receiver of the indoor unit 26 6 8 NOISE PROBLEM OUTDOOR UNIT TOO NO
22. present because this could produce toxic gas and dangerous if in contact with flames or heat sources Table of Contents Page 1 SPECIFICATIONS 4 1 1 Unit specifications 4 1 2 Major Component specifications 5 1 3 Other Component specifications 6 2 DIMENSIONAL DATA 7 3 ELECTRICAL DATA 8 3 1 Electric Wiring Diagrams 8 4 FUNCTION 9 4 1 System operation control 9 4 2 Cool Mode Operation 10 4 3 Heat Mode Operation 10 4 4 Auto Mode Operation only monosplit 11 4 5 Dry Mode Operation 12 4 6 Fan Mode Operation 12 4 7 Auto Fan Speed 12 4 8 Forced Made 13 4 9 Protection Operations in indoor unit 13 4 10 Protection Operation outdoor unit 14 4 11 Defrost 15 4 12 Feel Function 15 4 13 Hi Power mode 15 4 14 Drain pump 15 4 15 Night Function 16 4 16 Leds off function 16 4 17 Capacity Test Mode 16 4 18 Diagnostic 17 4 19 Indoor unit jumpers Configuration 18 4 20 Outdoor unit jumpers Configuration 18 5 INDOOR UNIT AND REMOTE CONTROL ADDRESS 19 5 1 Address Switches only for multisplit 19 5 2 Refrigerant Circuit Check only for multisplit 19 5 3 Changing the Address of the Air Conditioner 19 6 TROUBLESHOOTING 20 6 1 Check before and after troubleshooting 20 6 2 Circuit Breaker Trips or Fuse Blows 20 6 3 System does not run 21 6 4 Outdoor Unit does not run and no Fault is displayed 23 6 5 Only Outdoor Unit is Off
23. sec During the start up compressor speed increases according to a defined rule which is independent from the thermal load calculation 4 1 2 Multisplit available modes If the unit is a part of a multisplit system there could be some mode combination not available example unit A heat mode and unit B cool mode In this case the system automatically stops leds TMR and STB blink while led OPR is on e t O O 1 OPER TIMER STDBY tf LED blinking e LED on AVAILABLE MODE COMBINATION TABLE INDOOR UNIT A HEAT DRY COOL e 2 2 02 m lt B AVAILABLE O NOT AVAILABLE 4 2 Cool Mode Operation In Cooling Mode the operation of the compressor CM Outdoor Fan and Indoor Fan FMI are determined by 1 the difference between the room air temperature RAT and the set point temperature SPT 2 the protection level at which the system is operating 3 the thermal load in the room NOTES In addition to the temperature difference of above the operation of the main components CM FMO FMI is also controlled by protection function The minimum off time of compressor is 3 minutes The indoor fan can change speed only after it has operated at the same speed for 30 sec if in AUTO and 1 sec for the other settings High Med Low 4 3 Heat Mode Operation The Heating mode operation is similar to the Cooling mode operation The CM FMO and FMI are controlled by th
24. with power supplied be careful not to touch any uninsulated live part that can cause electric shock 6 2 CIRCUIT BREAKER TRIPS OR FUSE BLOWS When circuit breaker is set to ON it trips in a few moments Resetting is not possible Measure insulation resistance There is a possibility of ground fault If resistance value is 1 Mohm or less insulation is defective 20 6 3 SYSTEM DOES NOT RUN 1 THERE IS NO SIGNALING LED ON INDOOR UNIT Check power supply Is power being supplied to wall receptacle Circuit breaker is tripped Y Reset the breaker Power failure Y Wait for recovery or contact power company YES Check fuse on indoor The pcb assy is defective pcb Is the fuse blown YES Y There is a possibility of short circuit YES Y Measure resistance of fan motor winding NO The receiver assy is disconnected or defective 2 IN INDOOR UNIT THERE IS ONE LED ON AT LEAST AND THE UNIT RECEIVES THE REMOTE CONTROL SIGNAL mode see par 4 9 e 4 10 Is the set point temperature appropriate YES Is the unit in protection NO y NO Reduce the set point temperature in cooling mode or increase the set point in heating mode Check outdoor unit leds signaling see par 4 18
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