TECHNICAL DATA & SERVICE MANUAL SPLIT - Termo
Contents
1. TECHNICAL DATA 3e Technibel 8 SERVICE MANUAL a Lu atizatiom INDOOR UNIT DSAF184MR5IA DSAF22AMRSIA SPLIT SVSTEM AIR CONDITIONER Model No Product Code No DSAF184MR5IA 387106974 DSAF224MR5IA 387106981 0 8180 395 1 09 2006 1 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 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 AN CAUTION This svmbol refers to a hazard or unsafe practice which can result in personal injurv or product or propertv damage If necessarv get help These instructions are all vou need for most installation sites and maintenance conditions If vou 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 shal2. 2 40 1 20 0 7 0 10 20 40 50 60 70 80 90 emporature Temperature C Humidity sensor 1000 100 G A 5 25 C o tt 10 1 30 35 40 45 50 55 60 65 70 75 80 85 90 Relative humidity 96 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 Booster cable 1 Remove the screw on the electrical component box porn and remove the cover plate Adapter cable 2 Disconnect the fan motor sockets in the box adis Fan motor 3 Replace the adapter cable with the booster cable sockets at both ends Connector motor cable at the supply 4 Securely connect the booster cable sockets between the disconnected fan motor sockets in step 2 as shown in the Figure 5 Place the cable neatly in the box and reinstall the cover plate 18000 22000 10 4 10 4 8 z E E LLI tc 5 2 o6 6 B HH oc oc H 5 HH 5 E lt 4 H E 5 L M mi l L z z fra x 2 E 2 LLI 0 0 300 500 700 900 1100 1300 1500 300 500 700 900 1100 1300 1500 NOTE Using the booster cable H At shipment How to read the di
3. 1 meter 2 The antenna cable for a television or 2 Static occurs in the radio sound away from wireless devices and antenna cables radio is located close to the A C and A C Change the wireless device s antenna to a high sensitivity antenna 3 Locations where television and radio Change the antenna cable to a BS coaxial cable signals are weak Use noise filter for the wireless device Use a signal booster wiring 19 6 CHECKING ELECTRICAL COMPONENTS 6 1 Measurement of Insulation Resistance The insulation is in good condition if the resistance exceeds 2 6 1 1 Power Supply Wires Clamp the grounding terminal of the power plug 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 Then also measure the resistance between the grounding and other power terminals Fig 1 6 1 2 Indoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal plate Fig 2 6 1 3 Outdoor Unit Clamp an aluminum 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 for the che
4. 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 DSAF184MRSIA Controller PCB Part No CB UMRV183EH Controls Microprocessor Control circuit fuse 250 V 3 15 Remote Control Unit RCS 3MVHPS4E Fan 8 Fan Motor Centrifugal fan Dia and lenght 2 160 L 240 Fan motor model Q ty 3FGB CO 65 38 5 1 1 No Of poles rpm 230 V 4 1106 834 678 Running Amps 0 6 Power input 138 Coil resistance Ambient temp 20 C BLU BRN 68 BRN BLK BLK GRY GRY VLT VLT RED BRN YEL Safety devices Type Internal thermal protector 037 A 5 Operating temp Open 150 5K Run capacitor 2 450 Aluminium plate fin Copper tube 3 1 6 0 168 DATA SUBJECT TO CHANGE WITHOUT NOTICE Fan speeds H M L measured at operating conditions HIGH speed 5mmH20 external static pressure DSAF224MRSIA Controller PCB Part No CB UMRV223EH Controls Microprocessor Control circuit fuse 250 V 3 15A Remote Control Unit RCS 3MVHPS4E Fan amp Fan Motor Centrifugal fan Dia and lenght 2 160 L 240 Fan motor model Q ty 3FGB CO 65 38 5V 1 1 No Of poles rpm 230 V 4 1106 834 678 Running Amps 0 6 Power input 138 Coil resistance Ambient temp 20 BLU
5. E Lamp colors Operation lamp HEAT operation Red DRY operation Orange COOL operation TIMER lamp Green Green E ON timer operation Operation starts when the time set for the ON timer is reached When a time is set the TIMER lamp illuminates The below comfort timer programming is performed A comfort time is calculated from the set temperature and the room temperature either 60 minutes prior or 30 minutes prior to the set ON timer time and operation is started in advance of the set ON time The indoor fan speed is Medium COOL Indoor temperature Set temperature Temperature difference HEAT Set temperature Indoor temperature Temperature difference Temperature difference C Advance start time min 12 Temperature difference 60 6 Temperature difference 30 NOTE This function does not operate if the ON timer standby time is less than 30 minutes E OFF timer operation Operation stops when the time set for the OFF timer is reached When a time is set the TIMER lamp illuminates B Timer backup If the indoor unit is unable to receive the timer time end signal when the ON or OFF time is reached then timer time end occurs according to the indoor unit backup timer within approximately 26 minutes Operation stops if there are no operator controls for 25 hours or longer after unit operation switched from OFF to ON by use of ON timer operation 4 2 Protectiv
6. as desired within the range of 4 C This temperature can then be stored During automatic operation press the temperature setting buttons to change the temperature 12 SENSOR DRY During automatic operation the system adjusts the room temperature and fan speed according to the conditions in the room in order to maintain a comfortable room environment SENSOR DRY operation DRY operation is as shown in the figure below Load AN COOL zone A zone B zone Conditions are monitored at all times when the room temperature is below 15 C The compressor operation frequency varies depending on the relative humidity The indoor fan operates with 1 f fluctuation The compressor operates at a low operating frequency The indoor fan operates with 1 f fluctuation Monitoring operation takes place when the room temperature is below 15 C When the monitoring range is entered the compressor stops and the indoor fan operates at LL E PAM c control In order to further improve inverter performance control is switched between PWM control at low operation speeds and PAM control at high operation speeds making the most effective use of power Raises the power but remains in the same operating mode This function is set with the HIGH POWER button on the remote controller It is set regardless of the temperature and fan speed settings HIGH POWER operation from the remote controller The
7. between inter unit cables 1 and 2 body to DEMO and start operation using the Connect a 5 resistor between inter unit cables 2 and 3 When the remote controller voltage at both ends is measured approximately 12 15 V DC must be output and the needle must fluctuate once every 8 seconds In addition insert an LED jig and check that the LED flickers once every 8 seconds If there are no problems with the above then check the outdoor unit Checking the outdoor unit Control Check items unit operation Apply the rated voltage between outdoor The control panel LED red must illuminate unit terminals 1 and 2 Short circuit the outdoor unit COM terminal The compressor and fan motor must turn ON to the T RUN terminal If there are no problems with the above then check the indoor unit Using the TEST T RUN terminals n T RUN Test run compressor and fan motor turn ON TEST MV Compresses time to 1 60th accelerates operation by 60 times faster than normal Fully opens the electric expansion valve TEST MV T RUN COM 18 Noise malfunction and electromagnetic interference An inverter A C operates using pulse signal control and high frequencies Therefore it is susceptible to the effects of external noise and is likely to cause electromagnetic interference with nearby wireless devices A noise filter is insta
8. AS Xt X XE 06 COMPRESSOR DISCHARGE OVERHEAT PREVENTION 4 CONTINUOUS OVERLOAD OPERATION 5 OUTDOOR FAN DOES NOT TURN 6 OUTDOOR CIRCUIT BOARD FAILURE 1 FAN MOTOR FAILURE 2 CONTACT FAILURE AT CONNECTOR Yr Xt mt INDOOR FAN OPERATING FAILURE S INDOOR CIRCUIT BOARD EATEDEE RE 3 IRE FATCURE 1 4 WAY VALVE FAILURE 2 OUTDOOR CIRCUIT BOARD FAILURE xt XH 3k NO REFRIGERANT PROTECTION 1 SERVICE VALVE NOT OPENED 2 NO REFRIGERANT Xt XE 38 E10 COMPRESSOR DRIVE CIRCUIT FAILURE 1 OPEN PHASE 2 OUTDOOR CIRCUIT BOARD FAILURE sh 3 XE E11 OUTDOOR AC FAN OPERATING FAILURE T FAN MOTOR RATEURE CONTACT FATCURES AT CONNECTOR OUTDOOR SYSTEM COMMUNICATIONS FAILURE xe rx Xt Ei2 OUTDOOR HI PRESSURE SH OLR OPERATION 1 MISWIRING 2 BLOWN FUSE 3 POWER RELAY FAILURE OPEN PHASE OUTDOOR POWER SUPPLY OPEN PHASE OUTDOOR 5 OUTDOOR CIRCUIT BOARD FAILURE 6 COMPRESSOR FAILURE Xt XK 32 E13 FREEZE PREVENTION OPERATION 1 INDOOR FAN SYSTEM FAILURE 2 NO REFRIGERANT 3 LOW TEMPERATURE OPERATION Other Timer lamp flashes 3 second intervals 1 0 float switch activated NOTE If the operation lamp continues to flash orange even when the operation switch has been moved to the OFF position an indoor unit external ROM failure has occurred E14 After inspection or repair is completed be sure to move the operation switch on the electrical box to the DEMO position turn the power OFF and ON and erase the di
9. BRN 68 BRN BLK BLK GRY GRY VLT VLT RED BRN YEL Safety devices Type Internal thermal protector 7AM 037 A 5 Operating temp Open 150 5K Run capacitor 3 450 Aluminium plate fin Copper tube 3 1 6 0 168 DATA SUBJECT TO CHANGE WITHOUT NOTICE Fan speeds H M L measured at operating conditions HIGH speed 5mmH20 external static pressure 1 3 Other Component Specifications DSAF184MR5IA DSAF224MR5IA Trasformer TR Rating Primary AC 230 V 50 60 Hz Secondary 13 7V 0 4 A Capacity 5 48 VA Coil resistance Q at 25 C Primary WHT WHT 307 10 Secondary BRN BRN 1 8 10 Thermal cut off temp 150 C Thermistor Coil sensor TH1 DTN C583G3U TKS121B 0 188 0 4 Thermistor Room sensor TH2 DTN C502H3T TKS128B 25 C 5 0 3 Thermistor Humidity sensor TH3 C7 M3 SY 25 C 60 RH 5 RH 31 0 Drain pump Model PC 309564003 Rating Voltage 220 240V 50Hz Input 14W Total head capacit 0 4 I min Safety float switch E Model BI 1300 2725 Contact rating 230V AC DC 0 5A Indoor air temp sensor Indoor heat exchanger sensor 10 200 9 180 s 160 8 g g 140 5 2 120 9 5 100 4 e 80 f
10. GER SENSOR FAILURE SHORT CIRCUIT DETECTION ONLY FOR THE HUMIDITY SENSOR l E x HUMIDITY sensor FAILURE INDOOR OUTDOOR CIRCUIT BOARD FAILURE 504 COMPRESSOR TEMPERATURE SENSOR FAILURE x ik SH SENSOR FAILURE 1 SENSOR OPEN CIRCUIT OR SHORT CIRCUIT ii OUTDOOR HEAT EXCHANGER SENSOR FAILURE 2 CONTACT FAILURE AT CONNECTOR OR OPEN CIRCUIT AT TERMINAL CRIMPING LOCATION OUTDOOR NARROW TUBING SENSOR FAILURE A OUTDOOR CIRCUITI 0010008 AIR SENSOR TEMPERATURE FAILURE OUTDOOR WIDE TUBING SENSOR FAILURE ik OUTDOOR CIRCUIT BOARD FAILURE INDOOR OUTDOOR COMMUNICATIONS FAILURE 1 MISWIRING 2 AC POWER FAILURE 3 BLOWN FUSE 4 POWER RELAY FAILURE SERTAL COMMUNICATIONS 5 INDOOR OR OUTDOOR CIRCUIT BOARD FAILURE 1 HIC OR POWER TR FAILURE 2 OUTDOOR FAN DOES NOT TURN gx e se HIC CIRCUIT FAILURE 3 INSTANTANEOUS POWER OUTAGE 4 SERVICE VALVE NOT OPENED POWER TR CIRCUIT FAILURE 5 OUTDOOR FAN BLOCKED 6 CONTINUOUS OVERLOAD OPERATION 7 COMPRESSOR FAILURE 80019008 CIRCUIT BOARD FAILURE Xt XE X OUTDOOR UNIT EXTERNAL ROM FAILURE 1 EXTERNAL ROM DATA FAILURE 2 OUTDOOR CIRCUIT BOARD FAILURE 1 INSTANTANEOUS POWER OUTAGE 2 HIC OR POWER TR FAILURE X X XE E04 PEAK CURRENT CUT OFF 3 OUTDOOR CIRCUIT BOARD FAILURE 32 38 RAM IREVIT TATEYRE pe 1 OUTDOOR CIRCUIT BOARD FAILURE 2 OUTDOOR POWER SUPPLY VOLTAGE FAILURE 1 ELECTRIC EXPANSION VALVE FAILURE 2 CAPILLARIES BLOCKED 3 NO G
11. L 0 DEMO SW ili DEMO SW WHT 2 2 2P WHT a Q BRN Th pp or 2 2 3P BLK 6 BRN _ 3 3 34 iJ FS il PNK i 5 ili BRNili Fs 2 BRN 2 amp 212 4212 2P YEL em a A Bat 4 ROOM TH SE 5 AWW BLK 111 ROOM COIL ORG 6 BLK 2 2 4P WHT 7 7 BLK 3 3 8 8 WW BLK aja COIL TH BOOSTER CABLE TRANS P 3P WHT TRANS S 2P WHT SW 1 3P BLK LAMP 1 3P WHT LAMP 2 SP WHT HUM PP RED FLAP2 SPCWHT RECEIVER ASSY ili WHT 212 3 3 WHT P POWER TRANSFORMER ili BRN 5 212 ili GRN n 2 2 GRY 2 2 33 WHT 3I3 HL ili 212 BRN ili 3 3 RED a ORG 3 3 x YEL aja 5 ili BLK 555 gt 212 BLU eje OR 33 VLT 7 amp lt 4 4 515 HUMIDITY SENSOR ili BLK aQwp 2 2 BLK 1 2 3 a 5 11 4 FUNCTIONS 4 1 Operation Functions B Functions of the main unit controller OFF Used to stop the unit when the remote Self diagnostics controller is unavailable Used when service inspection is performed During normal operation Starts operation from the remote controller Emergency operation When the remote control
12. agnostics contents Control 1 Control 2 Initial self Short circuit terminals 2 and 4 on Short circuit terminals 2 3 on Probable location of malfunction diagnostics the indoor unit terminal plate the outdoor unit terminal plate Nochange SSCS SSSI nd unit board failure Only operation lamp Change Operation lamp and Service Change Operation lamp and Service Outdoor unit circuit board failure Change Operation lamp and Service Change only operation lamp illuminates Failure open circuit contact failure Turn the power OFF before performing short circuiting work During the self diagnostics check the check results are the first indication when the operation switch is moved to OFF while the indicators are flashing after power ON DEMO 5 seconds ON Before performing the above checks perform DEMO operation and check that AC 220 V is output toterminals 1 and 2 If it is not output there is a failure related to the indoor unit power 17 E If the self diagnostics function fails to operate No indicators illuminate and the Check the indoor unit indoor fan does not turn Check the power voltage Blown Is the fuse blown Normal Replace the controller Checking the indoor and outdoor units Replace the circuit board or the fuse Checking the indoor unit Control Check items unit operation Set operation selector of indoor unit main The rated voltage must be present
13. agram The vertical axis is the external static pressure mm W G while the horizontal axis represents the AIR FLOW m h The characteristic curves for and L fan speed control are shown The nameplate values are shown based on the H air flow rate For the type 18000 the flow rate is 875 m h while the external static pressure is 5 mm W G at H position for the type 22000 the flow rate is 1000 m h while the external static pressure is 5 mm W G at H position 2 DIMENSIONAL DATA FRONT VIEW FRESH AIR INTAKE PORT TOP VIEW AIR CONVEYOR REFRIGERANT TUBING SIDE OPTIONAL PART I D 18mm CONDENSATE DRAIN PIPING 250 REERIGERANT TUBING JOINT WIDE TUBE 0 0 12 7mm 1 2 9 N 10 Units mm 3 ELECTRICAL DATA 3 1 Electric Wiring Diagrams 1 sue FROM 2 1 WHT 2 2 SP BLK OUTDOOR UNIT GRN YEL ii 4 RED 515 TERMINAL 4 TERNI CONTROLLER CAPACITOR 1 1 PNK ili PNK 2 2 BRN 2 2 BRN 3 3 GRY 3 3 GRY l O FM 4 4 WHT 4 4 WHT HH S B VLT 515 VLT OH 6 6 ORG e 6 ORG l OM 7 7 YEL 7 7 YEL OL 818 BLK L
14. ate if there is thought to be any trouble with the outdoor controller After inspection or repair is completed be sure to move the operation switch to the DEMO position turn the power ON and erase the diagnostics contents E Method of self diagnostics If the indoor unit operation lamp is flashing every 0 5 seconds follow the procedure below to perform detailed trouble diagnostics If the operation lamp flashes every 0 5 seconds immediately when the power is turned ON there is an external ROM OTP data failure on the indoor circuit board or a board insertion problem or the board has not been installed The failure mode is stored in memory even when the power is not ON Follow the procedure below to perform diagnostics PROCEDURE Turn the power switch ON Move the operation selector on the remote control receiver to OFF self diagnostics If there is a sensor failure or a protective function has activated self diagnostics lamps 1 2 and 3 will illuminate in the following pattern 5 seconds flashing illuminated 2 seconds OFF Buzzer sounds once while lamps are OFF Note If there is no trouble then self diagnostics lamps 1 2 and 3 do not illuminate and the buzzer does not sound Diagnostics is completed when the buzzer sounds 3 beeps After inspection or repair is completed be sure to move the operation switch on the indoor unit main body to the DEMO position turn the power ON and erase the diagnostics conte
15. ce 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 21 Fuse PCB Ass y LO Compressor motor capacitor Fuse Fan motor capacitor Multimeter Fig 5 Fig 6 Fig 7 36 Technibel Ge atication 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728
16. ck 6 1 4 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from terminal plate capacitor etc Similarly disconnect the connector Then measure the insulation resistance Figs 3 and 4 NOTE Refer to Electric Wiring Diagram If the probe cannot enter the poles because the hole is too narrow then use a probe with a thinner pin 20 power plug Local supplv Insulation tester The shape of the power plug may differ from that of the air conditioner which you are servicing Fig 1 Terminal plate OIOI OIOI 5 XE Clip f Copper Insulation tube or Jb tester metallic part Fig 2 Copper tube or S metallic part O Insulation tester Fig 3 From fan motor compressor and other parts Metall 40 etallic CES par l Clip 28 4 O 4 Insulation tester Fig 4 6 2 Checking Continuity of Fuse on PCB Remove the PCB Ass v from the electrical component box Then pull out the fuse from the PCB Ass y Fig 5 Check for continuity using a multimeter as shown in Fig 6 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 resistan
17. duce strain on your back Sharp edges or thin aluminium fins on the air conditioner can cut your fingers 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 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 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 a
18. e Functions During HEAT operation the temperature of the indoor heat exchanger is used to control the frequency and lessen the load on the compressor before the protective device is activated A Indoor heat exchanger A Control start B Control end Approx 47 temperature C Indoor heat exchanger area Automatic capacity control b When Point A has been exceeded the operation frequency is reduced by a certain proportion area Frequency increase is prohibited At Point and below overload prevention is ended and control is the same as in the a area Freeze prevention During COOL or DRY operation freezing is detected and operation is stopped when the temperature of the indoor heat exchanger matches the conditions below Freeze prevention operation is engaged when the temperature of the indoor heat exchanger is below 6 C Restart after freeze prevention operation occurs when the temperature of the indoor heat exchanger reaches 8 C or above Indoor heat exchanger temperature K b I 7 a area Automatic capacity control b When the temperature drops below Point A the operation frequency is reduced by a certain proportion area Frequency increase is prohibited When the temperature reaches Point C or above freezing prevention is ended and control is
19. l in no way be responsible for improper installation or maintenance service including failure to follow 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 when wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY 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 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 re
20. ler is unavailable moving this switch from the OFF position to the ON position starts automatic operation Used when operating performance are checked Used when pump down is carried out Operates at the rated frequency At this time the main unit lamp flashes and the remote controller signal cannot be received This function is for shop displays Ordinarily itis not used Used during servicing 2 ON 4 DEMO E Automatic operation Operating mode selection When automatic operation is selected the indoor and outdoor temperature sensors function and either HEAT DRY or COOL mode operation is selected automatically Indoor temperature Set temperature Approx 15 C 22 C 27 C standard Approx COOL 27 C 22 C mode Temperature at which operation starts Range 20 26 C 18C Outdoor air temperature 24 C When multiple indoor units are connected and this unit is started while another indoor unit is operating the operating mode is as shown in the table below Operating mode Multi Operating mode before change operating mode after change COOL DRY DRY DRY COOL HEAT HEAT DRY HEAT HEAT HEAT If the remote controller is used to start automatic operation a differing mode check is performed if the operating modes are not the same Desired temperature memory The set temperature in the program can be changed
21. lled for ordinary use preventing these problems However depending on the installation conditions these effects may still occur Please pay attention to the points listed below E Noise malfunction This refers to the application of high frequency noise to the signal wires resulting in abnormal signal pulses and malfunction Locations most susceptible to noise Trouble Correction 1 Locations near broadcast stations where Either of the following trouble may occur The fundamental concept is to make the there are strong electromagnetic waves 1 The unit may stop suddenly during system less susceptible to noise 2 Locations near amateur radio short wave operation Insulate for noise or stations 2 Indicator lamps may flicker distance from the noise source 3 Locations near electronic sewing machines 1 Use shielded wires and arc welding machines 2 Move unit away from the noise source E Electromagnetic interference This refers to the noise generated by high speed switching of the microcomputer and compressor This noise radiates through space and returns to electric wiring affecting any wireless devices televisions radios etc located nearby Locations most susceptible to noise Trouble Correction 1 A television or radio is located near the 1 Noise appears in the television picture 1 Select a separate power source A C and A C wiring or the picture is distorted Keep the A C and A C wiring at least
22. nts Then move the operation selector on the remote control receiver to the OFF position and check that the diagnostics contents have been erased before using the unit Indoor unit main body gt NORMAL Operation switch Ordinarily be sure DEMO this is always set to IMMA NORMAL The DEMO position is 322 used for inspections Operation Selector so and similar Ordinarilv be sure this is gt maintenance always set to ON The OFF and TEST positions are used for inspections and similar maintenance 16 Details of Self Diagnostics When the operation selector on the grille assy is moved from the ON or TEST position to the OFF Self diagnostics position the indicator lamps will flash or remain ON for 5 seconds and then turn OFF for 2 seconds buzzer sounds once to indicate the presence of a sensor failure or the activation of a protective function Self diagnostics is completed when the buzzer sounds 3 beeps If there is no trouble the lamps do not flash Also note that the corresponding parts listed below may not be present in some models INDICATION ON IND U X 0FF 3 FLASHING XE 0N TMR OPR 5 CODE DIAGNOSTICS ITEM DIAGNOSTICS CONTENTS x SO1 ROOM TEMPERATURE SENSOR FAILURE 1 SENSOR OPEN CIRCUIT OR SHORT CIRCUIT 2 CONTACT FAILURE AT CONNECTOR OR OPEN CIRCUIT AT TERMINAL CRIMPING LOCATION 3k X X 502 INDOOR HEAT EXCHAN
23. rked A on the remote controller 2 Insert dry cell batteries into the remote controller and press the ACL button Then attach the cover 8 Open the air intake grille on the indoor unit and move the operation switch to the DEMO position Press the ON OFF operation button on the remote controller Check that the beep signal received sound is heard from the indoor unit 6 Move the operation switch to the ON position and close the intake grille 6 Operate the remote controller Check that the beep signal received sound is heard from the indoor unit 4 3 Drain Pump and Float Switch Either in Heating or another mode or the unit is stopped when the float switch is turned ON the drain pump operates for 20 minutes minimum 5 TROUBLESHOOTING Bl Precautions before performing inspection or repair After checking the self diagnostics monitor turn the power OFF before starting inspection or repair High capacity electrolytic capacitors are used inside the outdoor unit controller inverter They retain an electrical charge charging voltage DC 280 V even after the power is turned OFF and some time is required for the charge to dissipate Be careful not to touch any electrified parts before the controller LED red turns OFF If the outdoor controller is normal approximately 30 seconds will be required for the charge to dissipate However allow at least 5 minutes for the charge to dissip
24. s 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 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 Operation Functions 4 2 Protective Functions 4 3 Drain Pump and Float Switch 5 TROUBLESHOOTING 6 CHECKING ELECTRICAL COMPONENTS 6 1 Measurement of Insulation Resistance 6 2 Checking Continuity of Fuse on PCB Ass y 6 3 Checking Motor Capacitor Page if 10 11 11 12 12 14 15 16 1 SPECIFICATIONS 1 1 Unit Specifications DSAF184MRSIA 220 240V 50Hz Voltage rating 230V Performance Capacity See catalogue with the requested matching Air circulation High Med Low m h 865 645 455 External static pressure High Pa mm W G 49 5 a
25. t 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 Controls Temperature controls Control unit Washable Operation sound High Med Low 54 47 42 Refrigerant tubing connections Flare type Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 9 52 3 8 Refrigerant R410A Dimensions amp Weig Dimensions Package dimensions g DATA SUBJECT TO CHANGE WITHOUT NOTICE Power level measured at operating conditions HIGH speed 5mmH20 external static pressure and inside discharge air duct DSAF224MRSIA 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 985 760 530 Pa mm W G 49 5 at shipment 69 7 with booster cable Microprocessor thermostat Control unit 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 57 49 46 Refrigerant tubing connections Flare type Refrigerant tube diameter Narrow tube in 6 35 1 4 Wide tube in 12 7 1 2 Refrigerant Dimensions amp Weig Dimensions R410A Package dimensions g DATA SUBJECT TO
26. the same as in the area When the temperature drops to below 2 C continuously for 2 minutes or longer the compressor stops Once the freeze condition is detected the air conditioner will work less than the maximum frequency until it is turned off 14 Cold air prevention during heating During heating the fan speed is set to LL very low or stopped As the temperature of the indoor heat exchanger rises the fan speed is changed to the set speed 7 Set fan speed High Normal operation At start of operation LL Approx 40 Indoor heat exchanger temperature C Stopped 25 The fan speed is forcibly changed to LL beginning 30 seconds after the thermostat turns OFF Normal operation refers to operation when the room temperature has approached the set temperature When HEAT operation starts the indoor fan is stopped until the temperature of the indoor heat exchanger reaches 20 C or higher or until the room temperature reaches 15 C or higher Changing the remote controller address This prevents remote controller signal interference when two air conditioners are installed next to each other Ordinarily the address is set to A If it is necessary to change the address follow the procedure below If 3 or more up to 4 units are installed use remote controllers that are intended for servicing use Switch the address setting to by removing the tab ma
27. unit operates at maximum output for 15 minutes regardless of the desired temperature The fan speed is 1 step above High Frequency Time 15 min 5 min Start End MAX NOTE When HIGH POWER operation ends the unit operates at low Hz for 5 minutes regardless of the thermostat OFF conditions When in DRY mode operation is in the cooling zone When in HEAT mode defrosting does not occur during HIGH POWER operation If HIGH POWER is set while defrosting is in progress HIGH POWER operation begins after defrosting ends HIGH POWER operation cannot be set from the remote controller when the unit is stopped HIGH POWER operation and ECONOMY operation cannot be used at the same time The function set last takes priority E ECONOMY When ECONOMY operation is set the temperature and fan Speed settings will be adjusted automatically to allow comfortable sleep When ECONOMY operation is set mark appears on the remote controller COOL and DRY modes The indoor unit fan speed is automatically lowered for quiet operation The temperature setting is raised by 1 C one hour after ECONOMY operation is set HEAT mode The indoor unit and outdoor unit fan speeds are automatically lowered for quiet operation The temperature setting is lowered by 3 C one hour after ECONOMY operation is set In addition the temperature setting is lowered by 4 C after two hours have passed 13
Download Pdf Manuals
Related Search