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SERVICE MANUAL

1. TIMER OPERATION Setting the ON Timer Setting the OFF Timer 4 4 1 Press v Set the desired ON timer Press v Set the desired OFF timer 2 Press SET Set the timer Press ser Set the timer 3 Press Cancel the timer Press Daily timer allows the user to set both the amp OFF timers and will be activated on a daily basis Setting Daily Timer 4 1 Press Set the ON timer Press ser E Press SET button during the t or B OF ress utton during the f or 2 Press Set the OFF timer mark flashing During the daily timer is activation both arrows t or indicated Note Keep the remote control in accessible transmission to the indoor unit otherwise the time lag of up to 15 minutes will occur The setting will be saved for the next same operation FILE NO SVM 12072 9 PRESET OPERATION Set your preferred operation for future use The setting will be memorized by the unit for future operation except air flow direction 1 Select your preferred operation 2 Press and hold 955 for seconds to memorize the setting The mark displays 3 Press Operate the preset operation 10 AUTO RESTART
2. swine Fixe Q CHECK CLOCK FILTER RESET eN LN P ATO SJ iecro3 15 Iu tecros 1 sv H Alphanumeric characters are used for the check codes 5 155 B 156 is A h is B is C d is D Eco iron tt 32 2 SLEEP ON OFF i v Lv 1 Press CHECK button with a tip of pencil to set the remote controller to the service mode fill is indicated on the display of the remote controller Press ON A or OFF A button If there is no fault with a code the indoor unit will beep once Beep and the display of the remote controller will change as follows The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec Check the unit with all 52 check code
3. H FILE SVM 12072 SERVICE MANUAL AIR CONDITIONER SPLIT TYPE Indoor Unit lt High Wall Heat Pump Type gt RAS MO7N3KV2 E HFC January 2013 10 11 12 FILE NO SVM 12072 CONTENTS SAFETY PRECAUTIONS 2 SPECIFICATIONS uuu asss ua aae itr even x VI ia daian 5 CONSTRUCTION VIEWS U J J 6 WIRING DIAGRAMNI uu u J J 7 SPECIFICATIONS OF ELECTRICAL PARTS 8 REFRIGERANT CYCLE DIAGRAM 9 CONTROL BLOCK DIAGRANI 10 OPERATION DESCRIPTION 11 INSTALLATION PROCEDURE cernerent nnns 34 HOW TO DIAGNOSE THE TROUBLE 45 HOW REPLACE THE MAIN PAARTS 66 EXPLODED VIEWS AND PARTS 74 FILE NO SVM 12072 1 SAFETY PRECAUTIONS The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual Be sure t
4. Press 5 button Is transmission mark indicated Is receiver on indoor unit exposed to direct sunlight Does indoor unit operate when Is there any thyristor fluorescent light nearby near receiver or indoor unit YES Does indoor unit start to operate by automatic restart function NO Does radio sound is affected by remote control when a signal is transmitted at distance of 5 cm from radio P C board is defective Replace P C board Keep indoor unit away from Avoid direct Replace sunlight batteries thyristor fluorescent light 56 moving remote control Press 0 button Batteries are exhausted Is transmission mark indicated YES beep and operate YES FILE NO SVM 12072 The unit does not beep at all OPERATION lamp on indoor unit is not indicated Press RESET button on remote control with tip of pencil Does indoor unit Remote control is defective Normal Replace operation remote control FILE NO SVM 12072 10 5 2 Wiring Failure Interconnecting and Serial Signal Wire 1 Outdoor unit does not operate 1 Is the voltage between and of the indoor terminal block varied Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow ing diagram NOTE Measurement should be performed 2 minutes and 30 seconds after start
5. o z Q S c lt X Outdoor unit Dimension i mm Width Depth Type Model an motor output i m3 h Cooling Heating Flare connection Piping connection RAS MO7NSKV2 E 26 35 29 52 lt 5 w s c 5 3 o o c a 9 gt t Liquid side Gas side per unit per unit total Jg lt lt 5 lt 63 3 2 3 5 5 5 3 5 3 3 3 3 5 0 5 33285 JEJL ko S eka 5 olol 12 5 rin j Ko gt 513 3 3 gp x 3 2 ko 2 2 k D T 5 3 Name of refrigerant Weight kg nterconnection Usable temperature range Indoor Cooling Heating C 21 32 Cooling Heating Accessory Indoor unit Installation plate i 2 23 1 x 16L uper Oxi Deo filter uper Sterilizer filter 6 24 x 25L wv o 5 9S5 Sas c 5 31516 5 59 5 o lol c 3lo old ajo 5 Io 5 3 co mis 0 215 le Installation manual 1 Refer to the service manual of the multi outdoor unit to be combined Note The specifications may be subject to change without notice for purpose of improvement 5 FILE NO SVM 12072 3 CONSTRUCTION V
6. 10 8 2 Board Layout ue o gt gt o lt gt c gt m e m 1 Sensor characteristic table Resistance value 0 10 20 30 40 50 Temperature GND 60 62 FILE NO SVM 12072 Discharge temp sensor Room temp sensor Heat exchanger temp sensor Outdoor temp sensor Suction temp sensor Outdoor heat exchanger temp sensor 10 8 3 Indoor Unit Other Parts Part name Room temp TA sensor Heat exchanger TC sensor FILE NO SVM 12072 Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp Remote controller Refer to 11 5 1 5 Louver motor MSBPC20F04 Measure the resistance value of each winding coil by using the tester Under normal temp 25 C Position Resistance value 2500 7 Indoor fan motor 10 8 4 Outdoor Unit Part name Compressor Model DA89X1C 23FZ2 Refer to 11 5 1 3 and 4 Checking procedure Measure the value of each winding by using the tester Position Resistance value DA89X1C 1F 23FZ2 Red White White Black Black Red 1 04 to 1 160 White Black Under 20 Outdoor fan motor Model ICF 140 43 4R Measure the resistance value of winding by using the tester Red Position Resistance value Red White 20 to 220 W
7. Incidentally the refrigerant cylinder comes with the refrigerant designation R410A and protector coating in the U S s ARI specified rose color ARI color code PMS 507 Also the charge port and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch corresponding to the charge hose s port size 9 3 Indoor Unit 9 3 1 Installation place A place which provides the spaces around the indoor unit as shown in the diagram in part 8 2 A place where there is no obstacle near the air inlet and outlet A place that allows easy installation of the piping to the outdoor unit A place which allows the front panel to be opened The indoor unit shall be installed as top of the indoor unit comes to at least 2 m height Also it must be avoided to put anything on the top of the indoor unit Direct sunlight to the indoor unit s wireless receiver should be avoided The microprocessor in the indoor unit should not be too close to RF noise sources For details see the owner s manual Remote control A place where there are no obstacles such as a curtain that may block the signal from the indoor unit Do not install the remote control in a place exposed to direct sunlight or close to a heating source such as a stove Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interfere
8. the fuse F01 blown Turn off power supply once and 5 Check item Conceivable principle NO Is OPERATION YES second later turn it on again Item by symptoms Remote control is defective Refer to 4 YES Troubleshooting for Remote Control Unit operates normally Does transmission mark on remote control Is it possible to turn on power supply by pressing NO NO O flash normall button and is its signal on remote transmitted properly control YES Parts Does Is fuse F01 DB01 C27 T01 fan motor of indoor control and IC02 connector board blown are defective between and NO short circuit Is voltage DC 12V or 5V indicatedon YES Microcomputer pases e rear of indoor is defective control board normal Is the voltage across C27 Refer to lt Primary check gt or this problem is one step short of power board block mesured DC 310V 340V Are DC 5V Are DC 5V DC 12V Turn off breaker or DC 12V Regulator IC supplied onice and Tum supplied C02 or TO1 to main on again after to main board removing motor P C board are defective Replace motor Be sure to disconnect the motor connector CN31 after shut off the power supply or it will be a cause of damage of the motor FILE NO SVM 12072
9. 2 Power is not turned on though Indoor P C board is replaced lt Confirmation procedure gt Turn on power supply Does operation lamp flash NO Is wired correctly to white and black lead wires of terminal board YES To item of Power is not turned on 53 FILE NO SVM 12072 3 Only the indoor motor fan does not operate lt Primary check gt 1 Is it possible to detect the power supply voltage AC220 240V between D and the terminal block 2 Does the indoor fan motor operate in cooling operation In heating operation the indoor fan motor does not operate for approximately 10 minutes after it is turned on to prevent a cold air from blowing in Shut off the power supply once Turn the power supply pose ine fametopiin ES Control P C board is defective Replace the P C board no operating status ix p YES Start the operation with low fan setting in cool operation Does connecting terminal connecting cable or power supply cord completely Does not found the short wire about connecting cable and power cord YES Does AC 120 V or higher voltage apply to between red and black lead of fan motor NO Does the fan rotate Shut off the power supply Repair the bearing of Does the cross flow NO fan rotate normally YES Change the setting of cooling to high fan the fan
10. x As pressure is high it is impossible to measure by means of conventional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed Charge hose In order to increase pressure resisting strength hose materials and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size Electronic balance for refrigerant charging As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur Torque wrench nominal diam 1 2 5 8 The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 Flare tool clutch type By increasing the clamp bar s receiving hole strength of spring in the tool has been improved Gauge for projection adjustment Used when flare is made by using conventional flare tool Vacuum pump adapter Connected to conventional vacuum pump It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose The charge hose connecting part has two ports one for conventional refrigerant 7 16 UNF 20 threads per inch and one for R410A If the vacuum pump oil mineral mixes with R410A a sludge may occur and damage the equipment Gas leakage detector Exclusive for HFC refrigerant
11. Horizontal louver 1 Remove shaft of the horizontal louver from the back body First remove the left shaft and then remove other shafts while sliding the horizontal louver leftward Evaporator 1 Follow to the procedure the item Heat exchanger 2 Remove the pipe holder from the rear side of the main unit 3 Remove two fixing screws at the left side of the end plate of the heat exchanger F 2 4 Remove fixing screw the heat exchage fixing holder to separate the heat exchage from the back body holder Heat exchanger fixing i 5 Remove right side of the end plate from two fixing rib while sliding slightly the heat exchanger rightward Rib on the right side of the end plate FILE NO SVM 12072 Part name Procedures Remarks Bearing 1 Follow to the procedure in the item 2 Remove the two screws used to secure the bearing base Two screws 3 Remove the bearing base Caution at assembling If the bearing is out from the housing push it into the specified position and then incorporate itin the main body Bearing base Part name Fan motor Procedures 1 Follow to the procedure till item 2 Loosen the set screw of the cross flow fan 3 Remove two fixing screws of the motor cover and them remove the motor cover 4 Remove two more fixing screws of the motor band and remove the motor
12. Turn on the power supply Motor control circuit failure IC31 Q301 or 12 V Does the fan speed Operation Switching power supply failure become higher stops YES Replace the P C board Is the rotation signal DC 5 0 V output between 2 gray lead wire and brown lead wire of the motor connector CN33 when rotating the cross flow fan by hand in no operating status 1 pulse one turn NO Replace the fan motor YES Replace connecting the cable or power thermal fuse and terminal block Replace the control FILE NO SVM 12072 For AC fan motor lt Inspection procedure gt 1 Remove the front panel Remove 2 screws 2 Remove the cover of the fan motor lead wires 3 Check AC voltage with CN31 connector while the fan motor is rotating NOTE Using a tester measure the resistance value of each winding coil Useathin test rod AFN 220 20 4D Do not disconnect the connector while the fan motor is rotating For P C board side proceed to the item Only indoor fan does not operate of Judgment of Trouble by Every Symptom CN31 BLU CN33 PX PUR 4 GRY P C board zu Position board Resistance value Between Black Red 249 170 Between Black amp White Between Red White 4 Troubleshooting for remote control
13. 2 Starts operation under conditions in the left figure according to the temperature difference between the room tempera ture and the setup temperature Tsc Setup temperature Tsc Set temperature on remote controller Ts 0 0 to 1 0 3 When the room temperature is lower 1 C or less than the setup temperature turn off the compressor FILE NO SVM 12072 Operation flow and applicable data etc Description 2 Indoor fan In cooling operation gt motor control This operation controls the fan speed at indoor unit side Symbols The indoor fan cross flow fan is operated by the phase UH Ultra High control induction motor The fan rotates in 5 stages in H High MANUAL mode and in 5 stages in AUTO mode respec Medium tively Table 1 M Medium L Low L Low L Low COOLON UL Ultra Low SUL Super Ultra Low Fan speed setup MANUAL The values of fan speed and air flow volume indicate on the table are measured when the louver is inclined downward AUTO Indication Fan speed Fan speed and air flow volume broadly L _ W6 vary with position of louver 1 When setting the fan speed to L L aa L M 2 L M M or H on the remote M W9 controller the operation is performed with the constant M H 2 speed shown in Fig 1 WC 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 2 and Table
14. upper position and fan speed will reduce or off Min air flow rate control No limit Fan speed TC 42 a 10 x WD W8 W8 a In up operation 1 in down operation 0 Basic fan control T W AUTO Cold draft preventive control Line approximate H and SUL with Tc Stop Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting 1 Fan speed L x 1 4 L fii limitation while fan spee mode is in stability Fan speed M L x 2 4 L A When Tsc gt 24 A is 24 and when Tsc lt 24 A is Tsc 3 Fan speed M L x 3 4 L Tsc Set value Calculated with linear approximation from M and L Fig 5 In starting and in stability In stability Until 12 minutes passed after operation start When 12 to 25 minutes passed after operation start FAN AUTO When 12 to 25 minutes passed after operation and room temp is higher than set temp 3 C start and room temp is 3 C or lower than set temp When 25 minutes or more passed after operation start FAN Manual Room temp lt Set temp 4 Room temp gt Set temp 5 3 Capacity control Remote controller Indoor unit Operation flow and applicable data etc The cooling or heating capacity depending on the load is adjusted According to difference between the setup value of tempera ture and
15. 1 according to the setup tempera ture room temperature and heat exchanger temperature 8 Fan speed M L 3 4 L 4 Fan speed M L x 2 4 L 5 Fan speed M L x 1 4 L Linear approximation from M and L Table 1 Indoor fan air flow rate F d RAS RAS MO7N3KV2 E spee level COOL HEAT Fan C s Air flow rate rpm man h FILE SVM 12072 olem Operation flow and applicable data etc Description 2 Indoor fan In heating operation gt 1 When setting the fan speed to L motor control L M or on the remote controller the operation is per formed with the constant speed shown in Fig 3 and Table 1 2 When setting the fan speed to AUTO on the remote controller MANUAL revolution of the fan motor is controlled to the fan speed level shown in Fig 5 according to the set Indication Fan speed temperature and room temperature L _ 3 Min air flow rate is controlled by temperature of the indoor heat L L M 2 exchanger Tc as shown in Fig 4 M WA for prevent high temperature of heat M H 2 exchanger WE 4 Cold draft prevention the fan speed is controlled by temperature of the indoor heat exchanger Tc as shown in Fig 6 for keep warm temperature of air flow 5 order to prevent Cold draft when compressor step during heating Limited to Min WD tap operation Then louver will move to
16. 1hr 3hr 5hr or 9 hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode The principles of comfort sleep mode are e Quietness for more comfortable When room temperature reach setting temperature Save energy by changing room temperature automatically The air condition can shut down by itself automatically Remarks Comfort sleep mode will not operate in dry mode and fan only mode 13 Short Timer In the normal condition after switching one circuit breaker 3 minute delay time for compressor and 1 hour for plasma air purifier are set for the maintenance of the unit CLOCK FILTER RESET 86 Purpose To start the unit immediately for the purpose of testing trial etc short timer can be used maintenance of the unit Short Timer Setting Press 05 button to turn the unit OFF Q Setthe operation mode or plasma air purifier on the remote control without sending the signal to the unit Use the tip of the pencil to push the CHK button and hold 00 will show on display them press SET button to make 00 disappear Press b
17. DRY Air direction Swing Air volume select AUTO LOW LOW MED MED HIGH ECO COMFORT SLEEP ON timer setup QUIET OFF timer setup e PRESET Hi POWER ONE TOUCH Indoor unit Signal receiving Indoor unit control Command signal generating function of Indoor unit control indoor unit operation Indoor unit control Calculation function temperature calculation Indoor fan motor Activation compensation function of indoor fan Louver motor Operation command Cold draft preventive function Timer function Serial signal send receive Indoor heat exchanger release control _ l Outdoor unit Serial signal send receive Outdoor unit control inverter Frequency control of inverter output Waveform composite function Calculation function Compressor Temperature calculation Outdoor fan motor AD conversion function 4 way valve Quick heating function Pulse Modulating valve Delay function of compressor reactivation P M V Current release function GTr over current preventive function Defrost operation function FILE NO SVM 12072 Operation flow and applicable data etc 1 Basic 2 Operating mode selection when performing 2 room operation operation 1 The outdoor unit operation mode conforms to the instructions of the indoor unit that was pressed first 2 When combined operation consisting of cooling dry and heating fan and heating or cleaning operation an
18. If the resistance value between CN300 2 Red lead White lead White lead Black lead Black lead Red lead of the connector CN300 Motor winding is 17 to 250 it is normal Fan motor is normal Fan motor error Outdoor P C board error NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor FILE NO SVM 12072 11 HOWTO REPLACE THE MAIN PARTS WARNING Since high voltages pass through the electrical parts turn off the power without fail before proceeding with the repairs Electric shocks may occur if the power plug is not disconnected After the repairs have been completed after the front panel and cabinet have been installed perform a test run and check for smoking unusual sounds and other abnormalities If this check is omitted a fire and or electric shocks may occur Before proceeding with the test run install the front panel and cabinet Ensure that the following steps are taken when doing repairs on the refrigerating cycle 1 Do not allow any naked flames in the surrounding area If a gas stove or other appliance is being used extinguish the flames before proceeding If the flames are not extinguished they may ignite any oil mixed with the refrigerant gas Do n
19. Missed phase Flashes when trouble is detected on return serial signal and normal status when signal is reset Others including compressor Operation continues Return serial signal has been sent when operation started but it is not sent from halfway 1 Compressor thermo operation Gas shortage Gas leak 2 Instantaneous power failure Compressor does not All off rotate Current protective circuit does not operate when a specified time passed after compressor had been activated Displayed when error is detected Discharge temp All off exceeded 117 C Displayed when Check dischage temp sensor error is detected TD Gas leakage Trouble on P M V Check power voltage 220 230 240 V 1096 Overload operation of refrigera tion cycle Check installation condition Short circuit of outdoor diffuser Break down of All off compressor Displayed when error is detected Check 4 way valve operation 4 way valve inverse error Operation TC sensor value continues lowered during heating operation FILE NO SVM 12072 10 5 Judgment of Trouble by Every Symptom 10 5 1 Indoor Unit Including Remote Controller 1 Power is not turned on Does not operate entirely lt Primary check gt 1 Is the supply voltage normal 2 15 the normal voltage provided to the outdoor unit 3 Is the crossover cable connected properly 4
20. apt to be affected by impurities such as water oxidizing membranes and oils because the pressure of R410A refrigerant is approx 1 6 times of refrigerant R22 As well as the adoption of this new refrigerant refrigerating machine oil has also been changed Therefore during installation work be sure that water dust former refrigerant or refrigerating machine oil does not enter the refrigeration cycle of a new refrigerant air conditioner To avoid mixing refrigerant and refrigerating machine oil the sizes of charging port connecting port connecting sections on the main unit are different from those for the conventional refrigerant and different size tools are also required For connecting pipes use new and clean piping materials with highpressure withstand capabilities designed for R410A only and ensure that water or dust does not enter Moreover do not use any existing piping as its pressure withstand may be insufficient and may contain impurities DANGER FOR USE BY QUALIFIED PERSONS ONLY MEANS FOR DISCONNECTION FROM THE SUPPLY HAVING A CONTACT SEPERATION OF AT LEAST 3 mm IN ALL POLES MUST BE INCORPORATED IN THE FIXED WIRING TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK MAKE SURE ALL POWER SWITCHES ARE OFF FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK CONNECT THE CONNECTING CABLE CORRECTLY IF THE CONNECTING CABLE IS CONNECTED WRONGLY ELECTRIC PARTS MAY BE DAMAGED CHECK THE EARTH WIRE THAT IT IS NOT BROKEN OR DISC
21. band 5 Pull the fan motor outward Reference line Fan motor Reference condition of Fan Motor s assembly FILE NO SVM 12072 Remarks Set screw Two screws Two screws on motor band Motor cover FILE NO SVM 12072 Part name Procedures Remarks Cross flow fan lt Caution at reassembling gt Fan motor D shaft Double point set screw 1 To incorporate the fan motor incorporate the motor into the position in the following figure and then install the fan motor Install the cross flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 5 0 mm from closed wall of the main unit Holding the set screw install the cross flow fan so that flat area on shaft of the fan motor comes to the mounting hole of the set screw Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two hooking claws of the motor band right into the main body position the fan motor insert it and then secure the motor band right using the two fixing screws 11 2 Microcomputer Part name Common procedure Procedure 1 Turn the power supply off to stop the operation of air conditio
22. connecting cable fully into the terminal block and secure it tightly with screws Tighten firmly but not over 1 2 N m 0 12 kgf m Secure the connecting cable with the cord clamp 8 Fixthe terminal cover rear plate bushing and air inlet grille on the indoor unit CAUTION Be sure to refer to the wiring system diagram labeled inside the front panel Check local electrical cords and also any specific wiring instructions or limitations NO Connecting cable Terminal block bouiz Cord clamp m f lt Earth line Screw 10 mm Terminal cover SS Stripping length of the connecting cable Fig 9 3 5 e Use stranded wire only e Wire type More than HO7RN F or 60245 IEC66 1 0 mm or more lt How to connect remote controller wire gt Indoor unit Control wire Remote controller Fig 9 3 6 For indoor unit 1 Open the air inlet grille upward 2 Securely remove two screws at the front panel 3 Slightly open the iower part of the front panel thon pull the upper part of the front toward you to remove it from the rear plate as shown on figure 1 4 After removing the front panel remove the display unit and open the cover as shown on figure 2 and 3 5 Arrange the control wire as detail and specifica
23. mainly controlled by the indoor unit controller The indoor unit controller drives the indoor fan motor based upon command sent from the remote controller and transfers the operation command to the outdoor unit controller The outdoor unit controller receives operation com mand from the indoor unit side and controls the outdoor fan and the pulse motor valve P M V Besides detecting revolution position of the compres sor motor the outdoor unit controller controls speed of the compressor motor by controlling output voltage of the inverter and switching timing of the supply power current transfer timing so that motors drive according to the operation command And then the outdoor unit controller transfers reversely the operating status information of the outdoor unit to control the indoor unit controller As the compressor adopts four pole brushless DC motor the frequency of the supply power from inverter to compressor is two times cycles of the actual number of revolution 1 Role of indoor unit controller The indoor unit controller judges the operation commands from the remote controller and assumes the following functions Judgment of suction air temperature of the indoor heat exchanger by using the indoor temp sensor TA sensor Judgment of the indoor heat exchanger tempera ture by using heat exchanger sensor TC sensor Prevent freezing control etc Louver motor control Indoor fan motor operat
24. mm somm x 77 EST Do not put Do not put the drain the drain hose end hose end in into water the drainage ditch Fig 9 3 20 2 Put water in the drain pan and make sure that the water is drained out of doors When connecting extension drain hose insulate the connecting part of extension drain hose with shield pipe oO Shield pipe H B Extension drain hose 4 Drain hose Inside the room Fig 9 3 21 Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping This air conditioner has the structure designed to drain water collected from dew which forms on the back of the indoor unit to the drain pan Therefore do not store the power cord and other parts at a height above the drain guide Wall Drain guide Space for pipes Fig 9 3 22 9 4 Others 9 4 1 Remote Control A B Selection e When two indoor units are installed in the same room or adjacent two rooms if operating a unit two units may receive the remote control signal simultaneously and operate In this case the operation can be preserved by setting either one remote control to B setting Both are set to A setting in factory shipment The remote control signal is not received when the settings of indoor unit and remote control are different e There is no re
25. of indoor heat exchanger Indoor heat exchanger temperature Indoor heat exchanger temperature Operation flow and applicable data etc In cooling dry operation gt Prevent freezing control for indoor heat exchanger In cooling dry operation the sensor of indoor heat exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Usual cooling capacity control When the value is in Q zone the compressor speed is kept Reduction of compressor speed FILE NO SVM 12072 Description 1 When temperature of the indoor heat exchanger drops below 5 C the compressor speed is reduced P zone 2 When temperature of the indoor heat exchanger rises in the range from 6 C to under 7 C the compressor speed is kept Q zone 3 When temperature of the indoor heat exchanger rises to 7 C or higher the capacity control operation returns to the usual control in cooling operation R zone In heating operation gt Prevent overpressure control for refrigerating cycle In heating operation the sensor of indoor heat ex changer detects condensation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Reduction of compressor speed When the value is in Q zone the compressor speed is kept Usual heating capacity control 1 When tem
26. on figure 7 Insert control wire from rear side of remote controller as shown on figure 8 Fix control wire which arrange as shown on figure 9 and 10 to terminal by provided screws tighten firmly but not over 0 25 N m 0 03 kgf m Set control wire through gutter way at rear side of remote controller as shown on figure 11 Fix provided screw 3 1 x 16L on the wall to hang remote controller as shown on figure Mark and arrange hole for fix below screw 23 1 x 25L as shown on figure Assembly battery cover which provided with accessory bag then use provide screw 3 1 x 25L to fix battery cover together with wall as shown on figure 13 tighten firmly but not over 0 15 N m 0 02 kgf m 10 Reassembly cover of remote controller Polyester sheet close hole for insert control wire Control wire 10 Wire size 28 22 AWG 0 08 0 32 mm Outer diameter not over 4 7 mm control wire length 30 m or less Control wire Terminal Tighten firmly but not over 0 25 N m 0 03 kgf m Fig 9 3 9 Control wire Control wire Screw 3 1 x 16L for hang remote controller Hole for hang remote controller Remote controller Screw 3 1 x 25L for fix battery cover Tighten firmly but not over 0 15 N m 0 02 kgf m Fig 9 3 10 Remark 1 Recommend to use double insulation lead wire for connect remote control an
27. other and cut off the insulating tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use Auxiliary pipes Installation plate x When bending a pipe carefully do it not to crush it polyethylene foam as insulating material 9 3 5 Indoor unit fixing 1 Pass the pipe through the hole in the wall and hook the indoor unit on the installation plate at the upper hooks Swing the indoor unit to right and left to confirm that it is firmly hooked up on the installation plate While pressing the indoor unit onto the wall hook it at the lower part on the installation plate Pull the indoor unit toward you to confirm that it is firmly hooked up on the installation plate DE Hook here H Installation E plate j D Press unhook Fig 9 3 18 For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing its bottom up at the specified parts Push Push Fig 9 3 19 FILE NO SVM 12072 9 3 6 Drainage 1 Run the drain hose sloped downwards NOTE Hole should be made at a slight downward slant on the outdoor side Do not form the Do not rise the drain hose into y drain hose a wavy shape Z 50
28. required to operate at this time press RESET button once more or use the remote controller to turn it on RESET button While the filter check indicator is on the RESET button has the function of filter reset betton 8 3 3 Power Failure During Timer Operation e f Timer operation is set and the power supply shut down accidentally the previous Timer setting will be cancelled Daily Timer operation will be not affected by power supply failure if the remote controller is located on the position which it can send the command signal to the indoor unit It is because the remote controller will send signal every 30 minutes and Daily Timer operation will be restore 29 FILE NO SVM 12072 8 4 Remote control 8 4 1 Remote Controller and Its Functions Infrared signal emitter _ Start Stop button Mode select button MODE sage Temperature button TEMP Fan speed button FAN e PRESET Swing louver button SWING EO Set louver button FIX e On timer button ON og mg and Off timer button OFF ened Exe fool eco TIMER CLR ON OFF 4 sen lecHeck FILTER RE ETO b GM CN SEN geros tev Setup button SET Clear button CLR Memory and Preset button PRESET One Touch button ONE TOUCH High power button
29. the operation mode is changed After selecting Cool or Heat mode select an operation mode again if the compressor keeps stop status for 15 minutes In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the temperature arrives at the set temperature The compressor motor speed may decrease by high temp release control Release protective operation by temp up of the indoor heat exchanger or current release control FILE NO SVM 12072 10 2 Primary Judgment To diagnose the troubles use the following methods 1 Judgment by flashing LED of indoor unit 2 Self diagnosis by service check remote controller 3 Judgment of trouble by every symptom Firstly use the method 1 for diagnosis Then use the method 2 or 3 to diagnose the details of troubles 10 3 Judgment by Flashing LED of Indoor Unit While the indoor unit monitors the operation status of the air conditioner if the protective circuit operates the contents of self diagnosis are displayed with block on the indoor unit indication section Table 10 3 1 Block display Description for self diagnosis OPERATION Green Indoor indication Flashing display 1 Hz lamp flashes Power failure when power is ON OPERATION Green Flashing display 5 Hz Protective circuit operation for indoor P C board Which lamp does flash OPERATION Green TIMER Yellow Flashing display 5 Hz Protec
30. 02 1C lt Valve drive check Is coil of the pulse motor valve NO FILE NO SVM 12072 P M V correctly set YES Set it correctly lt Is connecter of coil connected to inverter YES Set it correctly lt Is positioning sound of valve sound hitting to stopper heard from valve when the air conditioner starts the operation after turning off power of the air conditioner once Replace coil valve i5 temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors which are used to control pulse motor valve include indoor heat exchanger sensor TC outdoor heat exchanger temp sensor TE outdoor suction temp sensor TS and outdoor sensor TO YES Set it correctly Gas amount check and valve clogging check Remove TC sensor connector from the board in indoor unit Remove connector from the P C board Operate the air conditioner in COOL mode by TEMP button sound is heard if keeping pushed for 10 seconds The operation enters temporary operation mode which fixes opening degree of compressor speed Check condensation at outlet of PMV and then check operating pressure from the service port Existence of condensation at outlet of P M V YES If there is condensation at outlet 1 4 inch 6 35mm valve s
31. 72 CAUTION Please read this installation manual carefbefore installing the unit It contains further important instructions for proper installation Exposure of unit to water or other moisture before installation could result in electric shock Do not store it in a wet basement or expose to rain or water e After unpacking the unit examine it carefully for possible damage e Do not install in a place that can increase the vibration of the unit Do not install in a place that can amplify the noise level of the unit or where noise and discharged air might disturb neighbors This appliance must be connected to the main power supply by means of a circuit breaker depending on the place where the unit is installed Failure to do so may cause electrical shock Follow the instructions in this installation manual to arrange the drain pipe for proper drainage from the unit Ensure that drained water is discharged Improper drainage can result in water leakage causing water damage to furniture Tighten the flare nut with a torque wrench using the prescribed method Do not apply excess torque Otherwise the nut may crack after a long period of usage and it may cause the leakage of refrigerant Wear gloves heavy gloves such as cotton gloves for installation work Failure to do so may cause personal injury when handling parts with sharp edges Do not touch the air intake section or the aluminum fins of the outdoor unit It may cause injury Do n
32. 9 9 3 3 Power Failure During Timer Operation 29 8 4 Remote Controller and Its Fuctions 9 4 1 Parts Name of Remote Controller 30 9 4 2 Operation of remote control 30 9 4 3 Name and Functions of Indications on Remote Controller 33 FILE NO SVM 12072 Item Operation flow and applicable data etc 1 Basic Operation control operation Receiving the user s operation condition setup the operation statuses of indoor outdoor units are controlled 1 The operation conditions are selected by the remote controller as shown in the below 2 signal is sent by ON button of the remote controller 3 The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below 4 The indoor controller controls the indoor fan motor and louver motor 5 The indoor controller sends the operation command to the outdoor controller and sends receives the control status with a serial signal 6 The outdoor controller controls the operation as shown in the left and also controls the compres sor outdoor fan motor 4 way valve and pulse Modulating valve Remote controller Selection of Control contents of remote controller operation conditions ON OFF Air conditioner Operation select COOL HEAT AUTO
33. Ee uses 13 2 Operating mode selection when performing 2 room operation 14 3 Gooling Heating operation 14 4 AUTO operation rr 15 5 DRY 15 2 indoor Tap motor u 16 SAAC RE 18 4 Release protective control by temperature of indoor heat exchanger 19 5 Louver CONO PT 20 1 L uver 20 2 Air direction adjustright o rr tn asa 20 i LA qot 20 0 3 EGO sad bet MER 21 7 Temporary n u a EE 22 8 Self Cleaning function suec oerte tpe rude 23 9 Selt Cleaning function 24 10 Remote A or B selection Y 25 11 QUIET MOA 26 12 COMFORT SEEEP a a 26 13 HORE TGP S ULT 26 14 One Touch Comfort reste 27 15 HEPOWEBMOGOB iN OD Debe aate 27 1607 FILTER Co NOR NN SCR MC c ARP NOTAE M 27 8 3 Auto Restart Function 9 3 1 How to Set the Auto Restart Function essere 28 9 3 2 How to Cancel the Auto Restart Function r 2
34. Hi POWER Economy button ECO qeu Quiet button QUIET E Comfort sleep button COMFORT SLEEP N Filter reset button FILTER Set clock button CLOCK Check button CHECK Reset button RESET COMFORT LEER The provided Remote Controller is a wireless type which also can be used as a wire Please see How to Connect The Remote Controller for Wired Operation located in installation instruction in case of wired control is required n wire operation remote controller will return to initial condition PRESET TIMER and CLOCK will return to initial condition when user shutdown power supply of Air conditioner 8 4 2 Operation of remote control 1 ONE TOUCH Press the ONE TOUCH button for fully automated operation that is customised to the typical consumer preferences in your region of the world The coutomised settings control temperature air flow strength air flow direction and other settings to provide you alternate contact with ONE TOUCH OF THE BUTTON If you prefer other settings you can select from the many other operation functions of your Toshiba unit Press b Start the operaton 2 AUTOMATIC OPERATION To automatical
35. IEWS Indoor Unit was x 116 480 Installation plate hanger L Installation plate hanger Drain hose 0 50m Connecting pipe 0 35m Connecting pipe 0 40m Flare 9 52mm Flare 6 35mm 84 5 621 84 5 235 235 Remote controller holder 215 215 Minimum H distance Hanger 8 5 distance of distance to wall 5 to wall N ee 170 lt ot so 190 0 170 or more Hanger Hanger 84 5 150 160 5 160 5 150 84 5 Center line Installation plate outline 4 WIRING DIAGRAM Outdoor terminal block 12 3 Indoor terminal block 12 oes FILE NO SVM 12072 xz amp ea POWER SUPPLY From outdoor Unit GRN amp YEL Heat exchanger T CNO1 3 1 CN51 _ 1 fey e 4 4 4 T ge mE 2 oo 3 I co Bus Heat Exchanger Sensor CN63 e VEL DI CN33 YN OW oA e 0907 m Heat Exchanger Sensor CN62 27 BLU OIl N ae Varisto
36. ONNECTED BEFORE INSTALLATION DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD PLACE THE UNIT WELL AWAY MORE THAN 2 M FROM HEAT SOURCES SUCH AS RADIATORS HEATERS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT R410A WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE IT CAUSES GENERATION OF POISONOUS GAS WHEN INSTALLING OR RE INSTALLING THE AIR CONDITIONER DO NOT INJECT AIR OR OTHER SUBSTANCES BESIDES THE DESIGNATED REFRIGERANT R410A INTO THE REFRIGERATION CYCLE IF AIR OR OTHER SUBSTANCES ARE MIXED AN ABNORMAL PRESSURE CAN OCCUR IN THE REFRIGERATING CYCLEL AND THIS CAN CAUSE AN INJURY DUE TO A PIPE RUPTURE FILE NO SVM 12072 WARNING Installation work must be requested from the supplying retail dealership or professional vendors Self installation may cause water leakage electrical shock or fire
37. OPERATION To automatically restart the conditioner after the power failure Power of the unit must be on Setting 1 Press and hold the RESET button on the indoor unit for 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 seconds Do not operate ON timer and OFF timer 2 Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation 3 beep sound but OPERATION lamp does not blink 11 QUIET OPERATION To operate at super low fan speed for quiet operation except in DRY mode Press we Start and stop the operation Note Under certain conditions QUIET operation may not provide adequate cooling due to low sound features 12 COMFORT SLEEP OPERATION To save energy while sleeping automatically control air flow and automatically turn OFF Press Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 0 5 degree hour for 4 hours maximum 2 degrees increase FILE NO SVM 12072 8 4 3 Names and Functions of Indications on Remote Controller Display All indications except for the clock time indicator are displayed by pushing the button 1 2 Transmission mark This transmission mark A indicates when the remote controller transmits signals to the indoor unit Mode indicator Indicates the current operation mode AUTO Automatic control A Auto changeover contro
38. Press and hold the RESET button on the indoor unit 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 seconds 2 Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation 3 beep sound but OPERATION lamp does not blink e In case of ON timer or OFF timer are set AUTO RESTART OPERATION dose not activate FILE NO SVM 12072 10 HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units Therefore diagnose troubles according to the trouble diagnosis procedure as described below Refer to the check points in servicing written on the wiring diagrams attached to the indoor outdoor units Table 10 1 No Troubleshooting Procedure No Troubleshooting Procedure First Confirmation How to Check Simply the Main Parts Primary Judgment Troubleshooting Judgment by Flashing LED of Indoor Unit How to Diagnose Trouble in Outdoor Unit Self Diagnosis by Remote Controller How to Check Simply the Main Parts Judgment of Trouble by Every Symptom How to Simply Judge Whether Outdoor Fan Motor is Good or Bad Precautions when handling the new inverter 3DV Inverter CAUTION HIGH VOLTAGEN The high voltage circuit is incorporated Be careful to do the check service as the electric shock may be caused in case of touching parts on the P C board by hand The new inverter 3DV inverter will be incorporat
39. This function is set to work from the factory The Auto Restart Function will not restart operation of the air conditioner in following case e The Auto Restart Function is setup to OFF e The power supply is shut down during the air conditioner is OFF e The power supply is shut down when timer operatio is set 8 3 1 How to Cancel the Auto Restart Function To cancel Auto Restart Function proceed as follows 1 The power supply to the unit must be ON The function will not set or reset if the power supply is OFF 2 Press the RESET button located on the front panel of the indoor unit for more than 3 seconds 3 After 3 seconds the unit beeps three times When the system is on stand by not operating Operation Motions Press RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times and continues to operate If the unit is not required to operate at this time press RESET button once more or use the remote controller to turn it off RESET button Press RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times If th
40. YES Temporary COOL Operation 1 When pressing RESET button the temporary AUTO operation starts 2 When keeping RESET button pressed for 3 seconds or more Pi Pi Pi sound is heard and AUTO RESTART control is changed 3 When keeping RESET button pressed for 10 seconds or more Pi sound is heard and the temporary COOL operation starts 4 If the filter lamp goes on press RESET button to go off the filter lamp and then press RESET button again 5 To stop the temporary operation press the button again FILE NO SVM 12072 tem Operation flow and applicable data etc Description 8 Self Cleaning 1 Purpose function The Self Cleaning operation is to minimize the growth of mold bacteria etc by running the fan and drying so as to keep the Unit now performing cooling or dry operation inside of the air conditioner clean Self Cleaning operation When the cooling or dry operation shuts down the unit automatically starts the Self Press STOP button Cleaning operation which is then performed for the specified period based on duration of the operation which was performed prior to the shutdown after which the Only timer indicator lights and Self Cleaning operation starts Self Cleaning operation stops The Self Cleaning operation is not performed after a heating operation Operation Time set now elapses 1 When the stop signal from the remote controller or timer off func
41. and pull out a H E H H Fig 9 3 11 How install the drain hose Firmly insert drain hose connecting part until hitting on a heat insulator and fix it with a screw How to remove the drain hose The drain hose can be removed by take off screw after that twisting and pulling When removing the drain hose be careful of any sharp edges of steel plate The edges can cause injuries To install the drain hose insert the drain hose firmly until the connection part contacts with heat insulator and the secure it with original screw Heat insulator Fig 9 3 12 Drain hose How to fix the drains 1 Insert hexagonal wrench 4 mm in a center head Fig 9 13 13 2 Firmly insert drains cap No gap P Do not apply lubricating oil refrigerant machine oil when inserting the drain cap Application causes deterioration and drain leakage of the plug Insert a hexagon wrench 4 mm Fig 9 13 14 Firmly insert the drain hose and drain cap otherwise water may leak n case of right or left piping After scribing slits of the front panel with a knife or a making off pin cut them with a pair of nippers or an equivalent tool Fig 9 13 15 lt in case of bottom right or bottom left piping After scribing slits of the front panel with a knife or a
42. as a result of improper installation Specified tools and pipe parts for model R410A are required and installation work must be done in accordance with the manual HFC type refrigerant R410A has 1 6 times more pressure than that of conventional refrigerant R22 Use the specified pipe parts and ensure correct installation otherwise damage and or injury may be caused At the same time water leakage electrical shock and fire may occur Be sure to install the unit in a place which can sufficiently bear its weight If the load bearing of the unit is not enough or installation of the unit is improper the unit may fall and result in injury Electrical work must be performed by a qualified elecrical engineer in accordance with the code governing such installation work inernal wiring regulations and the manual A dedicated circuit and the rated voltage must be used Insufficient power supply or improper installation may cause electrical shock or fire Use a cabtyre cable to connect wires in the indoor outdoor units Midway connection stranded wire and single wire connections are not allowed Improper connection or fixing may cause a fire Wiring between the indoor unit and outdoor units must be well shaped so that the cover can be firmly placed Improper cover installation may cause increased heat fire or electrical shock at the terminal area Be sure to use only approved accessories or the specified parts Failure to do so may cause the uni
43. ction adjustment Horizontal Inclined Blowing Inclined Horizontal blowing blowing downward blowing blowing gt A 1 3 Swing e Swing operation is in range 35 with the Fixed position as the center If the swing range exceeded either upper or lower limit position swing operation is performed in range 35 from the limit Upper Limit Upper Limit Position Position Fixed Swing E Position range 35 before start swing Fixed Position gt Lowe Limit Swing Lower imit before start Position range 35 Position swing Description The louver position can be arbitrarily set up by pressing FIX button Swing When pressing SWING button during operation the louver starts swinging FILE NO SVM 12072 Operation flow and applicable data etc Description 6 ECO When pressing ECO button on the remote controller a lt Cooling operation gt operation Economic operation is performed 1 The control target temperature lt Cooling operation gt increase 0 5 per hour up to 2 C This function operates the air conditioner with the difference starting from the set temperature between the set and the room temperature as shown in the when ECONO has been received following figure 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO FAN operati
44. ction of the room temperature sensor TA sensor Air conditioner status Operation continues Remarks Displayed when error is detected Judgment and action Check the room temp sensor When the room temp sensor is normal check board Being out of place disconnection short circuit or migration of heat exchanger sensor TC sensor Operation continues Displayed when error is detected Check heat exchanger sensor When heat exchanger sensor is normal check board Lock of indoor fan or trouble on the indoor fan circuit All off Displayed when error is detected Check the motor When the motor is normal check PC board Not displayed Trouble on other indoor PC boards Operation continues Displayed when error is detected Replace board Connecting cable and serial signal Return serial signal is not sent to indoor side from operation started 1 Defective wiring of connecting cable 2 Operation of compres sor thermo Gas shortage Gas leak Operation continues Flashes when trouble is detected on Return serial signal and normal status when signal is reset 1 When the outdoor unit never operate 1 Check connecting cable and correct if defective wiring 2 Check 25A fuse of inverter PC board 3 Check 3 15A of inverter board To display Other block during operati
45. d air conditioner 2 For wire operation 1 remote control can control only 1 indoor unit 3 In wire operation remote controller will return to initial condition PRESET TIMER and CLOCK will return to initial condition when user shutdown power supply of air conditioner How to install the air inlet grille on the indoor unit e When attaching the air inlet grille the contrary of the removed operation is performed 9 3 4 Piping and drain hose installation lt Piping and drain hose forming Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material FILE NO SVM 12072 Rear left 5 S Bottom left jw 1 o eg rte gt Bottom right _ gt c gt Right mp O 1 Die cutting front panel slit Cut out the slit on the left or right side of the front panal for the left or right connection and the slit on th bonttom left or right side of the front panel for the botto left or right connection with a pair of nippers 2 Changing drain hose For leftward connection bottom leftward connection and rear leftward connection s piping it is necessary to change the drain hose and drain cap How to remove the drains cap Clip drain cap by needle nose plier
46. d heating is performed operation conforms to the instructions of the indoor unit that was pressed first as shown in the following table 3 The indoor fan stops for the indoor unit that was pressed last and which instructions are ignored 4 When three or four indoor units are operated concurrently the priority is also given to operating mode of the indoor unit which was pressed first as same as the case when two indoor units are operated concurrently No Indoor unit Set operating mode Actual indoor unit operation Actual outdoor unit operation Pressed first ooling dry ooling cry Pressed last Cooling dry Cooling dry Pressed first eating eating Um Pressed last Pressed first only uw Pressed last Pressed fist an only an only Pressed last Cooling dry Cooling dry Pressed first dry ooling dry ne Pressed last Pressed first dry ooling dry Pressed last Fan stopped Pressed first eating eating Pressed last Cooling dry Fan stopped Pressed first cleaning operation Cleaning Operation Stopped Pressed last Cleaning operation Cleaning operation Pressed first Cleaning operation Cleaning operation Coolin Pressed last Cooling dry Cooling dry 9 10 Pressed first Cooling dry Cooling dry Cooling Pressed last Cleaning operation Cleaning operation 11 Pressed first Cleaning operation Cleaning operation Stopped Pressed last 1 Pressed first em Pr
47. d wall and tilt the indoor unit for better operation not allow the drain hose to get slack Cut the piping hole sloped slightly Make sure to run the drain hose sloped downward x 0 The auxiliary piping can be connected the left rear left rear right right bottom right or bottom left Right Rear right Bottom Rear right left Bottom left J Insulate the refrigerant pipes separately with insulation not together 6 mm thick heat resisting polyethylene foam amp Batteries 2 Wireless remote controller FILE NO SVM 12072 9 2 Installation 9 2 1 Optional installation parts Part Code Parts name Q ty Refrigerant piping Liquid side 26 35 mm One Gas side 9 52 mm each Pipe insulating material 1 polyethylene foam 6 mm thick One Putty PVC tapes Sach lt Fixing bolt arrangement of outdoor unit gt 108 mm 125 mm L 28 mm S Air inlet gt fa E d GEN T D x y Air outlet 90 mm 600 Drain outlet Fig 9 2 1 e Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind e Use 28 mm or 210 mm anchor bolts and nuts e f it is necessary to drain the defrost water attach drain
48. e hanging hooks 3 pcs at the top side of the front panel to the rear plate 2 Tighten two screws Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound Part name Electric parts box assembly Procedures 1 Follow the procedure up to 3 in above 2 Remove screw of earth lead attached to the end plate of the evaporator 3 Remove the lead wire cover and remove connector for the fan motor and connec tor for the louver motor from the electric parts box assembly 4 Pull out TC sensor from sensor holder of the evaporator 5 Disengage the display unit by simply pushing at the top of the display unit 6 Remove the fixing screw that secures the electric parts box assembly and remove the assembly lt How to assemble the electric parts box gt 1 Hook the top part of the electric parts box assembly onto the claws on the back body Now attach the display unit Connect the connectors for the fan motor and louver motor 2 Secure the grounding wire using the fixing screw Insert the TC sensor into the sensor holder Be absolutely sure to loop the grounding wire and TC sensor leads once at the bottom FILE NO SVM 12072 Remarks Electric box cover TC sensor Fan motor Earth Screw connector Fixing screw AC fan motor connector Louver motor connector FILE SVM 12072 Part name Procedures Remarks
49. e unit is required to operate at this time press RESET button once more or use the remote controller to turn it on RESET button 28 FILE SVM 12072 8 3 2 How to Set the Auto Restart Function To set Auto Restart Function proceed as follows 1 The power supply to the unit must be ON The function will not set or reset if the power supply is OFF 2 Press the RESET button located on the front panel of the indoor unit for more than 3 seconds 3 After 3 seconds the unit beeps three times and the indicator blinks for 5 seconds When the unit is standby Not operating Operation Motions Press RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times The green indicator flashes and continues to operate for 5 seconds If the unit is not required to operate at this time press RESET button once more or use the remote controller to turn it off RESET button Press RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times The green indicator flashes for 5 seconds If the unit is
50. ed starting with this unit SDV 3 shunt Discrete Vector control The control circuitry has an uninsulated construction Compressor 1 IGBT x 6 i 4 s _ R Fan motor Amplifier FET 6 1 Amplifier Shared potential Fig 10 1 FILE NO SVM 12072 CAUTION A high voltage equivalent to the supply voltage is also energized to ground through the sensors PMV and other low voltage circuits The sensor leads and other wires are covered with insulated tubes for protection Nevertheless care must be taken to ensure that these wires are not pinched Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power At times such as when the circuit board is to be replaced place the circuit board assembly in a vertical position Laying the board flat on an electrically conductive object such as the top panel of the air conditioner s outdoor unit while a charge is still retained by the electrolytic capacitors of the inverter s main circuit may cause short circuiting between the electrolytic capacitors and secondary circuit components and result in damage to the components Sensor leads Fig 10 2 Do NOT lay the circuit board assembly flat Precautions when inspecting the control section of the outdoor unit NOTE A large capacity electrolytic capacitor is
51. en D Q G or O opened or short circuited Is not frame grounded with or FILE NO SVM 12072 Summary If fuse was blown be sure to check the electrolytic capacitor and diode block DB01 Connect discharge resistance approx 1000 40W or soldering iron plug between terminals of the electro lytic capacitor 500uF or 760uF of C14 with printed CAUTION HIGH VOLTAGE on P C board Discharging position Discharging period 10 seconds or more Plug of soldering A iron if 500uF or 760uF DC280 to 380V Remove CN300 while pushing the part indicated by an arrow because CN300 is a connector with lock Resistance between phases should be approx 55 to 77Q Should be 10MQ or more FILE NO SVM 12072 Diagnosis Process flowchart Contents Summary Check winding resistance between phases of compres sor and resistance between outdoor frames by using a tester board assembly Is not short circuited OK if 0 510 gt 0 570 between windings Check by a digital tester Check compressor Winding is not opened winding resistance Operation Remove connector CN300 of the outdoor fan motor turn on the power supply breaker Replace Replace and perform the operation control board compressor Stops though activation is prompted Check operation within 2 minutes 20 seconds after activation stopped 10 8 How to Check Simpl
52. ents Operation flow and applicable data 0 0 03 COMPONENT SIDE gi PCB NO WP 020 FILE NO SVM 12072 Description 10 Remote A or B selection Setting the remote controller To separate using of remote control for each indoor unit in case of 2 air conditioner are installed nearly Remote Control B Setup 1 Press RESET button on the indoor unit to turn the air conditioner ON 2 Point the remote control at the indoor unit 3 Push and hold CHK e button on the Remote Control by the tip of the pencil 00 will be shown shown on the display 4 Press MODE during pushing CHK B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Control B is memorized Note 1 Repeat above step to reset Remote Control to be A 2 Remote Control A has not A display 3 Default setting of Remote Control from factory is A TOSHIBA B Display 00 Display 25 1 Purpose This operation is to operate only indoor unit using one remote controller Description When operating one indoor unit in a situation where two indoor units have been installed in the same room or nearby rooms this operation prevents the remote controller signal from being received simultaneously by both units thus preventing both units from operating Operation The indoor unit on
53. error is detected 1 Check sensors TE TS 2 Check P C board Disconnection or short circuit of discharge All off Displayed when error is detected 1 Check discharge temp sensor TD 2 Check P C board yi temp sensor Outdoor fan drive All off system error Position detect error over current protective operation of outdoor fan drive system fan lock etc Replace board or fan motor Displayed when error is detected y s Not displayed Outdoor heat exchanger Operation 1 Check outdoor temp sensor temp sensor error continues TO 2 Check P C board J Outdoor 14 Compressor drive output error Compressor error lock missing etc Break down All off Displayed when error is detected When 20 seconds passed after start up position detect circuit error occurred Replace compressor Trouble on P M V 1 Repeat Start and Stop with interval of approx 10 to 40 minutes Code is not displayed during operation Supply gas Check also gas leak Unit operates normally during check If return serial signal does not stop between indoor terminal block 2 and 3 replace inverter P C board If signal stops between indoor terminal block 2 and 3 replace indoor P C board Trouble on compressor Trouble on wiring of compressor
54. essed last Cleaning operation Cleaning operation 13 Pressed first Cleaning Operation Cleaning operation Stopped Pressed last Fan stopped Pressed fist eem Pressed last Cleaning operation Fan stopped 3 Cooling Heating operation The operations are performed in the following parts by controls according to cooling heating conditions 1 Receiving the operation ON signal of the remote controller the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit 2 At the indoor unit side the indoor fan is operated according to the contents of 2 Indoor fan motor control and the louver according to the contents of 5 Louver control respectively 3 The outdoor unit controls the outdoor fan motor compressor pulse Modulating valve and 4 way valve according to the operation signal sent from the indoor unit Operation ON Setup of remote controller Y Indoor unit control F Sending of operation command signal Indoor fan motor control Louver control Operation Hz Control Requierment Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control Outdoor unit control 4 way valve control In cooling operation ON In heating operation OFF Pulse Modulating valve control 1 operation Operation flow and applicable data etc 4 AUTO o
55. g Function Heat Exchanger Sensor Tc Room Temperature Sensor Ta L Mot 3 minute Delay at Restart for Compressor Drive Control 1 1 1 Infrared Rays Signal Receiver 12 Fan Motor Starting Control _ gt Indoor Fan s a n Processing Motor Control Initializing Circuit Temperature Processing Indoor Timer Clock Frequency Oscillator Circuit Serial Signal Communication Clean Function Power Supply Circuit Converter D C circuit ZN Noise Filter Serial Signal Transmitter Receiver ec Power Supply EET From Outdoor Unit Serial Signal Communication Operation Command and Information Remote Controller Infrared Rays 36 7kHz REMOTE CONTROLLER o Operation Mode Selection E AUTO COOL DRY HEAT Nu Thermo Setting N Fan Speed Selection E ON TIMER Setting OFF TIMER Setting Louver AUTO Swing B Louver Direction Setting E E ES Hi POWER rmm irr s FILE NO SVM 12072 8 OPERATION DESCRIPTION 8 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner which uses AC or DC motor for the indoor for motor and the outdoor fan motor And the capacity proportional control compressor mounted The DC motor drive circuit is mounted to the indoor unit The compressor and the inverter to control fan motor are mounted to the outdoor unit The entire air conditioner is
56. he connector is disconnected CN62 The heat exchanger sensor and the P C board are defective Refer to Table 10 4 1 The main P C board is defective If the above condition No 5 still continues start the unit in the following condition Set the operation mode to HEAT Set the preset temperature much higher than room tem perature Check whether or not the compressor operates Check whether or not the OPERATION indicator flashes The temperature of the indoor heat exchanger is extremely high The connection of the heat exchanger sensor short circuited CN62 The heat exchanger sensor and the P C board are defective Refer to Table 10 4 1 The main P C board is defective Connect the motor connector to the motor and turn on the power supply Start the unit the following condition Set the fan speed level to HIGH The unit compressor operates continuously in the above condition in No 5 Check it is impossible to detect the voltage AC120V or higher voltage between red and black lead of the motor The motor does not operate or the fan motor does not rotate with high speed But it is possible to receive the signal from the remote controller The motor rotates but vibrates strongly The indoor fan motor is defective Protected operation of P C board The board is defective The connection of the motor connector is loose
57. hite Black 20 to 220 Black Red 20 to 220 4 way valve coil Model STF 01AJ646A1 Measure the resistance value of winding by using the tester 18 1435 1440 Under 20 C Pulse motor valve coil Model CAM MD12TCTH 5 Measure the resistance value of winding by using the tester Position Resistance value Gray White 43 to 490 Gray Orange 43 to 490 Red Yellow 43 to 490 Red Blue 43 to 490 Under 20 d M Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS outdoor heat exchanger temperature sensor TE Disconnect the connector and measure resistance value with the tester Normal temperature 100 20 7 12 6 See 10 0 7 9 4 5 FILE NO SVM 12072 10 8 5 Checking Method for Each Part Part name Checking procedure Electrolytic capacitor 1 Turn OFF the power supply breaker For raising pressure smoothing 2 Discharge all three capacitors completely 3 Check that safety valve at the bottom of capacitor is not broken 4 Check that vessel is not swollen or exploded 5 Check that electrolytic liquid does not blow off 6 Check that the normal charging characteristics are show in continuity test by the tester Cle AE Case that product is good Pointer swings once and returns slowly When performing test once again Soldered under another polarity the surface o
58. ide the valve is clogged Replace valve Check the operating pressure from service port and add gas if pressure is low Add gas 10 7 How to Diagnose Trouble in Outdoor Unit 10 7 1 Summarized Inner Diagnosis of Inverter Assembly Diagnosis Process flowchart Remove connector of compressor Check 25A fuse Part No F01 Replace fuse Check electrolytic capacitor diode block DBO1 etc Check terminal voltage of electrolytic capacitor Check electrolytic capacitor diode DBO1 etc Does outdoor fan rotate Remove connector CN300 of outdoor fan motor and using a tester check resistance value between every phases at motor side Replace outdoor fan motor Ta Preparation Operation Measure ment Check Stop Check Measure ment ble 10 7 1 Contents Turn OFF the power supply breaker and remove 3P connector which connects inverter and compressor Check whether 25A fuse on the control board assembly is blown or not F01 Turn on the power breaker and operate the air condi tioner in COOL mode by time shortening Measure terminal voltage of the electrolytic capacity 500uF 400WV x 760uF 400WV x After operation turn off the power breaker after 2 minutes 20 seconds passed and discharge the electro lytic capacitor by soldering iron Check voltage between motor phases Is not winding betwe
59. ing of the operation Be sure to prepare a diode for judgment Terminal block at indoor side Red 3 O J S5277G or equivalent G or J type S5277G Diode with rated voltage of 400V White or more is acceptable D Terminal block Tester Normal time Voltage swings between DC15 and 60V Inverter Assembly check 10 7 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation started Check procedure Select phenomena described below 1 The outdoor unit stops 10 to 20 minutes after operation started and 10 minutes or more are required to restart the unit Gas circulation amount is down Measure gas pressure Thermo operation of compressor Gas shortage Gas leak Pipe clogging 2 If the unit stops once it does not operate until the power will be turned on again To item of Outdoor unit does not operate 3 The outdoor unit stops 10 minutes to 1 hour after operation started and an alarm is displayed Discharge temp error check code 03 1E Sensor temp error check code 02 1C Gas leak P M V is defective Miswiring of connecting wires of indoor outdoor units Clogging of pipe and coming off of TC sensor O Refer to the chart 11 6 10 6 How Check Simple the Main Parts lt Check procedure gt Discharge temp error gas leakage Check code 03 1E Gas leakage disconnection of TS TC sensors Check code
60. ion control LED Light Emitting Diode display control Transferring of operation command signal Serial signal to the outdoor unit Reception of information of operation status Serial signal including outside temp data to the outdoor unit and judgment display of error 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control Operation control of outdoor fan motor e control 4 way valve control Heat Pump model only Detection of inverter input current and current release operation Over current detection and prevention operation to IGBT module Compressor stop function Compressor and outdoor fan stop function when serial signal is off when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system Transferring of operation information Serial signal from outdoor unit controller to indoor unit controller Detection of outdoor temperature and operation revolution control Defrost control in heating operation Temp measurement by outdoor heat exchanger and control for 4 way valve and outdoor fan Contents of operation command signal Serial signal from indoor unit controller to outdoor unit controller The following three types of signals are sent from the indoor unit controller Operation mode set on the
61. ir into the refrigeration cycle Be sure to close both service valves and stop the compressor before removing the refrigerant pipe It removing the refrigerant pipe while the compressor is operating with the service valves opened it may cause to air absorbed and abnormal high pressure inside the refrigeration cycle and resulting burst or injury Do not modify the power cable connect the cable midway or use a multiple outlet extension cable Doing so may cause contact failure insulation failure or excess current resulting in fire or electrical shock Do not use any refrigerant different from the one specified for complement or replacement Otherwise abnormally high pressure may be generated in the refrigeration cycle which may result in a failure or explosion of the product or an injury to your body Be sure to comply with local regulations codes when running the wire from the outdoor unit to the indoor unit Size of wire and wiring method etc Places where iron or other metal dust is present If iron or other metal dust adheres to or collects on the interior of the air conditioner it may spontaneously combust and start a fire If you detect any damage do not install the unit Contact your supplying dealer immediately Never modify this unit by removing any of the safety guards Do not install in a place which cannot bear the weight of the unit Personal injury and property damage can result if the unit falls FILE NO SVM 120
62. l zx Cool Dry Heat Temperature indicator Indicates the temperature setting 17 C to 30 C FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW LOW MED MED ma HIGH milli can be shown Indicates AUTO when the operating mode is either AUTO or Dry TIMER and clock time indicator The time setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation Hi POWER indicator Indicates when the Hi POWER operation starts Push the Hi POWER button to start and push it again to stop the operation 7 PRESET indicator Flashes for 3 seconds when the PRESET button is pushed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is flashing Push another button to turn off the mark ECO indicator Indicates when the ECO is in activated Push the ECO button to start and push it again to stop operation 9 A B change indicator remote controller 10 11 12 13 When the remote controller switching function is set appears in the remote controller display When the remote controller setting is there is no indication at this position Comfort sleep Indicates when comfort sleep is activaled Push comfort sleep button to select Quiet Indicates when quiet is activated Pu
63. lation between A setting B setting and A room B room when connecting the piping and cables lt Remote control A B selection gt To separate using of remote control for each indoor unit in case of 2 air conditioners are installed nearly lt Remote Control B Setup gt 1 Press RESET button on the indoor unit to turn the air conditioner ON 2 Point the remote control at the indoor unit 3 Push and hold CHECK button on the Remote Control by the tip of the pencil 00 will be shown on the display Picture 4 Press MODE during pushing CHECK B will show on the display and 00 will disappear and the air conditioner will turn OFF The Remote Control B is memorized Picture NOTE 1 Repeat above step to reset Remote Control to be A 2 Remote Control A has not A display 3 Default setting of Remote Control from factory is A TOSHIBA TOSHIBA LILI Fig 9 4 1 FILE NO SVM 12072 9 4 2 Test operation To switch the TEST RUN COOL mode press RESET button for 10 sec The beeper will make a short beep RESET button Fig 9 4 2 9 4 3 Auto restart setting This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure The product was shipped with Auto Restart function in the off position Turn it on as required lt How to set the auto restart gt 1
64. ly select cooling or fan only operation 1 Press 9 Select 2 Press Set the desired temperature 3 COOLING HEATING FAN ONLY OPERATION To automatically select cooling or fan only operation 1 Press Select Cool Heat or Fan only 2 Press Set the desired temperature Cooling Heating Min 17 C Max 30 C Fan Only No temperature indication 3 Press x Select AUTO LOW LOW a MED MED HIGH DRY OPERATION COOLING ONLY FILE NO SVM 12072 For dehumidification a moderate cooling performance is controlled automatically 1 Press bes Select Dry 2 Press Hi POWER OPERATION Set the desired temperature To automatically control room temperature and airflow for faster cooling operation except in DRY and FAN ONLY mode Press Start and stop the operation ECO OPERATION To automatically control room to save energy except in DRY and FAN ONLY mode Press sco Start and stop the operation Note Cooling operation the set temperature will increase automatically 0 5 C hour for 4 hours maximum 2 degrees increase TEMPORARY OPERATION In case of the misplaced or discharged remote control Pressing the RESET button the unit can start or stop without using the remote control Operation mode is set on AUTOMATIC operation preset temperature is 24 and fan operation is automatic speed
65. making off pin cut them with a pair of nippers or an equivalent tool Fig 9 13 16 FILE NO SVM 12072 Left hand connection with piping Bend the connecting pipe so that it is laid within 43 mm above the wall surface If the connecting pipe is laid exceeding 43 mm above the wall surface the indoor unit may unstably be set on the wall When bending the connecting pipe make sure to use a spring bender so as not to crush the pipe Bend the connection pipe within a radius of 30 mm To connect the pipe after installation of the unit figure To the forefront of flare gt Outward form of indoor unit i R 30 Use polisin polyethylene Q SN core or the like for bending pipe Use the handle of screwdriver etc Fig 9 3 17 NOTE If the pipe is bent incorrectly the indoor unit may unstably be set on the wall After passing the connecting pipe through the pipe hole connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them M CAUTION Bind the auxiliary pipes two and connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the auxiliary pipes two only with facing tape Indoor unit W LED Sp Connecting cable C Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit Carefully connect the auxiliary pipes and connecting pipes to each
66. n presetting per room temperature OFF Cool mode or dry mode Self Cleaning mode operation more than 10 mins operate 30 mins Turn off by remote controller or timer off function How to Set or Cancel Self Cleaning operation Default setting from factory is ON 1 Connect jumper lead at J201 of the indoor P C board assembly 2 To cancel Self Cleaning operation Turn the power supply ON Press the RESET button located on the front panel of the indoor unit for more than 3 seconds After 3 seconds the unit beeps three times The Self Cleaning is cancelled 3 To set Self Cleaning operation Turn the power supply ON Press the RESET button located on the front panel of the indoor unit for more than 3 seconds After 3 seconds the unit beeps three times and the indicator blinks for 5 seconds The Self Cleaning is set gt Operation time Automatically turn off One J201 is added it will effect as following The operation when press the RESET button for 3 seconds will be changed from Set Cancel the AUTO RESTART to Set Cancel the Self Cleaning AUTO RESTART function will not activate In case of AUTO RESTART is need disconnect the jumper J201 and set it again after Set Cancel the Self Cleaning finished Note J201 is near the MCU so 50 take steps to ensure that it will not be exposed to excessive of heat Also take care to avoid solder bridging with the surrounding compon
67. nce The location of the remote control should be determined as shown below Side view Topview 7 Indoor unit s Remote control Indoor unit AS Reception Reception range range Remote control Fig 9 3 1 FILE NO SVM 12072 9 3 2 Cutting a hole and mounting installation plate Cutting a hole When installing the refrigerant pipes from the rear The center of the pipe hole is above he arow 100 mm Fig 9 3 2 1 After determining the pipe hole position on the mounting plate gt drill the pipe hole 65 mm at a slight downward slant to the outdoor side NOTE When drilling a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the installation plate Anchor bolt holes LX 2 m or more from floor Installation 9 Pipe hole Thread i Wei Mounting screw Indoor unit eight g Fig 9 3 3 lt When the installation plate is directly mounted the wall gt 1 Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit To mount the installation plate on a concrete wall with anchor bolts utilize the anchor bolt holes as illustrated in the above figure Install the in
68. ner 2 Remove the front panel Remove the 2 fixing screws 3 Remove the electrical part base FILE NO SVM 12072 Remarks Replace terminal block microcomputer ass y and the board ass y FILE NO SVM 12072 12 EXPLODED VIEWS AND PARTS LIST 12 1 Indoor Unit Part E Location Part Description No No 214 43721435 STEPPING MOTOR ASSEMBLY 43739344 BEARING BASE ASSEMBLY 43721409 FAN MOTOR 43739343 MOTOR BAND LEFT 43722312 BEARING ASSY MOLD 43T39329 MOTOR BAND RIGHT 43T70313 HOSE DRAIN 43T09409 HORIZONTAL LOUVER 43720325 CROSS FLOW FAN ASSEMBLY 43779313 CAP DRAIN 43711301 PIPE SHIELD 43144409 REFRIGERANT CYCLE ASSEMBLY 43T83305 HOLDER REMOTE CONTROL 43T00598 PANEL SERVICE ASSEMBLY 43760382 MOTOR CORD 43T80327 FILTER AIR R 43T82310 INSTALLATION PLATE 43780328 FILTER AIR L 43T19333 HOLDER SENSOR 43T09482 GRILLE OF AIR INLET 43709408 PIPE HOLDER 43762344 TERMINAL COVER ASSEMBLY 43T03385 BACK BODY ASSEMBLY 43166317 WIRELESS REMOTE CONTROLLER 12 2 Indoor Unit Location Description No 401 43769319 TEMPERATURE SENSOR 402 43T50306 TEMPERATURE SENSOR 403 43769320 TEMPERATURE SENSOR 404 43T62340 CORD CLAMP FILE NO SVM 12072 Part Descripti 43T6V316 PC BOARD ASSY WRS LED 43T6V335 PC BOARD 43760378 TERMINAL 43760417 TERMINAL TOSHIBA CARRIER THAILAND CO LTD
69. nipple and cap water proof to the bottom plate of the outdoor unit before installing it FILE NO SVM 12072 9 2 2 Accessory and installation parts 3 P Part name Q ty Part Q ty el Part name Q ty ess Flat head wood screw Installation plate x 1 Toshiba New IAQ filter L x 1 03 1 258 x 1 5E Ry Battery cover x 1 Drain nipple x 1 Wireless remote control x 1 Omm Cap water proof x 2 Battery x 2 Mounting screw 24 x 25 x 6 Flat head wood screw Remote control holder x 1 23 1 x 169 x 2 The part marked with asterisk is packaged with the door unit Others N out ame Owner s manual Installation manual 9 2 3 Installation Servicing Tools Changes in the product and components In the case of an air conditioner using R410A in order to prevent any other refrigerant from being charged accidentally the service port diameter of the outdoor unit control valve 3 way valve has been changed 1 2 UNF 20 threads per inch In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed for copper pipes with nominal dimensions 1 2 and 5 8 New tools for R410A New tools for R410A Applicable to R22 model FILE NO SVM 12072 Changes Gauge manifold
70. o read this installation manual carefully before installing Recommend to the owner to perform maintenance periodically when using over long periods of time Be sure to follow the precautions provided here to avoid safety risks The symbols and their meanings are shown below DANGER It indicates that incorrect use of this unit can result in a high possibility of severe injury 1 or death WARNING It indicates that incorrect use of this unit may cause severe injury of death CAUTION It indicates that incorrect use of this unit may cause personal injury 2 or property damage 3 1 A severe injury refers to blindness injury burns hot or cold electrical shock bone fracture or poisoning that leaves aftereffects and requires hospitalization or extended out patient treatment 2 Personal injury means a slight accident burn or electrical shock which does not require admission or repeated hospital treatment 3 Preperty damage means greater damage which affects assets or resources For general public use Power supply cord of parts of appliance for outdoor use shall be at least polychloroprene sheathed flexible cord design HO7RN F or cord designation 60245 IEC66 1 5 mm2 or more Shall be installed in accordance with national wiring regulations CAUTION New refrigerant air conditioner installation THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY OZONE LAYER R410A refrigerant is
71. on H 3 The compressor speed is controlled as shown in the left figure ED Fan speed depend on presetting and can change every speed E 5 m COOL min COOL min 6 x 5 COOL min 6 x 4 COOL min COOL min COOL min 6 x 2 COOL min 6 x 1 COOL COOL min 6 x 3 COOL 2 RAS M07N3KV2 E Cool min 20 DRY max 35 lt Heating operation gt lt Heating operation gt 30 minutes Compressor 1 Setting the compressor speed to L Max aHz the temperature zone in which the operation can be performed with Max cHz is gradually widened after 30 minutes passed when starting ECO operation 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO operation B zone a to cHz Room temp Set temp RAS M07NS3KV2 E 20 50 FILE NO SVM 12072 Operation flow and applicable data etc Description Pressing RESET button starts the temporary opera tion of AUTO operation When keeping RESET button pressed for 10 seconds or more the temporary COOL operation is performed 7 Temporary operation Filter lamp ON NO Did you press RESET button for 3 seconds or more YES Did you press RESET button for 10 seconds or more NO Switch to AUTO RESTART control YES Press RESET button Temporary AUTO operation
72. on check compressor thermo operation and supply gas check gas leak also Unit operates normally during check If return serial signal does not stop between indoor terminal 2 and 3 replace inverter P C board If signal stops between indoor terminal 2 and 3 replace indoor PC board FILE NO SVM 12072 Block distinction Operation of diagnosis function Air Judgment and action conditioner Remarks 9 status Check code Block Cause of operation Outdoor Inverter over current All off Displayed when Even if trying operation again all board protective circuit operates Short time error is detected operations stop immediately Replace board Position detect circuit error or short circuit between windings of compressor All off Displayed when error is detected 1 Even if connecting lead wire of compressor is removed position detect circuit error occurred Replace board Measure resistance between wires of compressor and perform short circuit Replace compressor _ Current detect circuit error All off Displayed when error is detected Even if trying operation again all operations stop immediately Replace P C board Being out of place disconnection or short circuit of the outdoor heat exchanger sensor TE or suction temp sensor Ts All off Displayed when
73. on the display of the remote controller and the unit operates as follows 1 Automatic operation The indoor unit operates in according to the current operation Cooling operation The preset temperature drops 1 C The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap Heating operation The preset temperature increases 2 C The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap The Hi POWER mode can not be set in Dry operation The Hi POWER operation will be cancelled when press Hi POWER button again 16 FILTER Indicator When the elapsed time reaches 1000 hours after air purifier operation the FILTER indicator lights After cleaning the filters turn off the FILTER indicator How to Turn Off FILTER Indicator Press RESET button on the indoor unit NOTE If RESET button is pushed while the FILTER indicator is not lit the indoor unit will start the automatic operation 27 FILE NO SVM 12072 8 3 Auto Restart Function Default setting from factory is ON This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down The operation will resume without warning three minutes after power is restored
74. ot install the outdoor unit in a place which can be a nest for small animals Small animals could enter and contact internal electrical parts causing a failure or fire e Request the user to keep the place around the unit tidy and clean e Make sure to conduct a trial operation after the installation work and explain how to use and maintain the unit to the customer in accordance with the manual Ask the customer to keep the operation manual along with the installation manual FILE NO SVM 12072 2 SPECIFICATIONS us Outdogr Cooling capacity Cooling capacity range Heating capacity Heating capacity range Power supply 220 240V IPh 50Hz 220V IPh60Hz 0 Operation mode Cooling Heating Electric characteristic gt ox ojo 5 o o 3 5 5 6 515 ele 515 SIS amp ermelelstmela 82256262 c 3 25 3 2 3 2 gt N _ gt tarting current COP Cooling Heating 1 Indoor Cooling Heating ow Outdoor Cooling 1 1 Indoor unit Unit model RAS M07N3KV2 E Dimension i mm Width Depth an motor output i m3 h Cooling Heating 275 I 225 2 o s Q 2 2 Na i o z 8 6 9 5 Er xl ajo OZ Sg Sis Dia eo 2
75. ot use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage circuits are contained inside this unit Proceed very carefully when conducting checks since directly touching the parts on the control circuit board may result in electric shocks 11 1 Indoor Unit Part name Procedures Remarks Front panel 1 Stop operation of the air conditioner and turn off its main power supply 2 Open the air inlet grille push the arm toward the outside and remove the grille 3 Remove the left and right air filters Part name Front panel Procedures 4 Press PUSH part under the front panel and remove hooks of the front panel from the installation plate 5 Remove the front panel fixing screws 2 pcs 6 Take off three hooks of panel from rear side Fr a g lt How to assemble the front panel gt FILE NO SVM 12072 Remarks Installation plate Front panel 1 Press three center positions and two lower center positions of the air outlet and then hang th
76. peration Selection of operation mode As shown in the following figure the operation starts by selecting automatically the status of room temperature Ta when starting AUTO operation 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode Ta C Cooling operation Monitoring Fan Heating operation FILE NO SVM 12072 Description 1 Detects the room temperature Ta when the operation started 2 Selects an operation mode from Ta in the left figure 3 Fan operation continues until an operation mode is selected 4 When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20 C or more the fan operation is performed with Super Ultra LOW mode for 3 minutes Then select an operation mode 5 In AUTO mode either cooling or heating operation will be selected When room temperature reach set temperature commpressor will stop In case that the compressor stops for 15 minutes the AUTO mode will reselect cooling or heating operation DRY operation DRY operation is performed according to the difference between room temperature and the setup temperature as shown below In DRY operation fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons Fan speed 1 Detects the room temperature Ta when the DRY operation started
77. perature of the indoor heat exchanger rises in the range from 52 to 55 the compressor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 48 to under 55 the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 52 C or when it drops below to 48 the capacity control operation returns to the usual control in heating operation R zone FILE NO SVM 12072 Item 5 Louver control 1 Louver position Operation flow and applicable data etc This function controls the air direction of the indoor unit e The position is automatically controlled according to the operation mode COOL HEAT e The set louver position is stored in memory by the microcomputer and the louver returns to the stored position when the next operation is performed Cooling Heating memory position The angle of the louver is indicated as the louver closes fully is 0 1 Louver position in cooling operation lt Initial setting of Cooling storage position Louver Directs downward 40 99 2 Louver position in heating operation Heating operation AUTO HEAT Initial setting of Heating storage position Louver Directs downward 80 57 2 Air dire
78. pointer should return Heat sink IGBT side C12 C13 C14 500uF 400V Converter module 1 Turn OFF the power supply breaker 2 Discharge all three capacitors completely 3 Check that the normal rectification characteristics are shown in continuity test by the tester Diode check Resistance value Tod in good product ei o or more OQ in trouble Qi e FILE NO SVM 12072 10 9 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1 Symptom Outdoor fan motor does not rotate Outdoor fan motor stops within several tens seconds though it started rotating Outdoor fan motor rotates or does not rotate according to the position where the fan stopped etc Remote controller check code 02 Outdoor block 1A Outdoor fan drive system error 2 Cause The following causes are considered when the outdoor fan motor does not normally rotate 1 Mechanical lock of the outdoor fan motor 2 Winding failure of the outdoor fan motor 3 Position detect circuit failure inside of the outdoor fan motor 4 Motor drive circuit failure of the outdoor P C board 3 How to simply judge whether outdoor fan motor is good or bad Turn OFF the breaker Disconnect two connectors CN300 of the outdoor fan motor from the outdoor P C board Does the fan rotate without trouble when rotating it with hands
79. r Line E j CAAO 2X2 Filter Thermo Sensor N61 1 WHI _ Louver Motor DC5V O Dc12VO 5 Dyd E Sa 3 oo a 2c gt 2 2 5 5 e P 6 gt Color indication So PA W o9 M zu BRW BROWN D S 8 YEL YELLOW s 2 BLK BLACK ES 10 RED RED BLU BLUE oa Em Main PC Board WHI WHITE CN11 WP 020 GRN amp YEL BLK GREEN amp YELLOW FILE NO SVM 12072 5 SPECIFICATIONS OF ELECTRICAL PARTS Indoor Unit Fan motor for indoor AFN 220 20 4D 240V 20W Room temp sensor TA sensor 1 hog 25 Heat exchanger temp sensor TC sensor 10kQ at 25 C MSBPC20F04 Output Rated 1W 16 poles DC12V FILE NO SVM 12072 6 REFRIGERANT CYCLE DIAGRAM INDOOR UNIT Temp measurement Indoor heat exchanger TCJ K s Cross flow fan 5 uu 5 27 8 Min 1 Pressure measurement Deoxidized copper pipe a Chargeless 1 Gauge attaching port Outer dia 6 35mm Charge 1 Vacuum pump connecting port Thickness 0 8mm 89 lt 5 5 Deoxidized copper pipe s onal shape lt of heat insulator Outer dia 9 52mm Thickness 0 8mm 1 Refer to the service manual of multi outdoor unit to be combined FILE NO SVM 12072 7 CONTROL BLOCK DIAGRAM Indoor Unit M C U Indoor Unit Control Unit Cold draft preventin
80. remote controller Compressor revolution command signal defined by indoor temperature and set temperature Correction along with variation of room tempera ture and correction of indoor heat exchanger temperature are added Temperature of indoor heat exchanger For these signals Operation mode and Com pressor revolution indoor heat exchanger tem perature the outdoor unit controller monitors the input current to the inverter and performs the followed operation within the range that current does not exceed the allowable value Contents of operation command signal Serial signal from outdoor unit controller to indoor unit controller The following signals are sent from the outdoor unit controller The current operation mode The current compressor revolution Outdoor temperature Existence of protective circuit operation For transferring of these signals the indoor unit controller monitors the contents of signals and judges existence of trouble occurrence Contents of judgment are described below Whether distinction of the current operation status meets to the operation command signal Whether protective circuit operates When no signal is received from the outdoor unit controller it is assumed as a trouble Operations followed to judgment of serial signal from indoor side 8 2 Operation Description FILE NO SVM 12072 T Basic operation eeu 13
81. ribed in the following table If a claim is made for running operation check whether or not it meets to the contents in the following table When it does we inform you that it is not trouble of equipment but it is indispensable for controlling and main taining of air conditioner Table 10 1 1 Operation of air conditioner When power breaker is turned the operation indicator Green of the indoor unit flashes Description The OPERATION lamp of the indoor unit flashes when power source is turned on If button is operated once flashing stops Flashes also in power failure Compressor may not operate even if the room temperature is within range of compressor ON The compressor does not operate while compressor restart delay timer 3 minutes timer operates The same phenomenon is found after power source has been turned on because 3 minutes timer operates In Dry and ECO mode FAN air flow display does not change even though FAN air flow select button is operated The air flow indication is fixed to AUTO Increasing of compressor motor speed stops approx 30 seconds after operation started and then compressor motor speed increases again approx 30 seconds after For smooth operation of the compressor the compres sor motor speed is restricted to Max 41 rps for 2 min utes and Max 91 rps for 2 minutes to 3 minutes respec tively after the operation has started In AUTO mode
82. s to 33 as shown in Table 10 4 1 Press or OFF Y button to change the check code backward If there is a fault the indoor unit will beep for 10 seconds Beep Beep Beep Note the check code on the display of the remote controller 2 digits alohanumeric will be indicated on the display All indicators on the indoor unit will flash 5 times per 1 sec Press CLR button After service finish for clear service code in memory 7F is indicated on the display of the remote control Press 0 button to release the service mode The display of the remote controller returns to as it was before service mode was engaged Fig 9 4 1 10 4 2 Caution at Servicing 1 After servicing press the button to return to the normal mode 2 After servicing by the check code turn off breaker of the power supply and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status However the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory FILE NO SVM 12072 3 After servicing press CLR button under check mode status and then send the check code 7F to the indoor unit The error code stored in memory is cleared Block distinction Table 10 4 1 Operation of diagnosis function Check Block Indoor PC board etc Cause of operation Short circuit or discon ne
83. sh quiet button to start and push it again to stop operation One Touch Indicates when one touch comfort is activated Push one touch button to start the operation Swing Indicates when louver is swing Push swing button to start the swing operation and push it again to stop the swing operation 9 INSTALLATION PROCEDURE 9 1 Installation Diagram of Indoor and Outdoor Units o o E 5 E E wo Installation plate 7 70 mn rr Shield pipe Flat head 4 Remote control holder wood screw Vinyl tape 8 Apply after carrying Battery cover Flat head out a drainage test wood screw Wireless remote control oe oc A H js 4 Saddle Extension drain hose Not available provided by installer Flat head wood screw 600 mm or more P Batteries lt The provided Remote Controller is a wireless type which also can be used as a wire Please see How to Connect The Remote Controller for Wired Operation in case of wired control is required Remark Detail of accessory and installation parts can see in the accessory sheet Some pictures might be different from the actual parts Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type following the and positions FILE NO SVM 12072 For the rear left and left piping Insert the cushion between the indoor unit an
84. ssary to check steps 1 to 3 in the right next column Check power supply voltage 1 Between No 1 and No of CNO1 AC 220 240V 2 Between and of C27 DC 310 340V Between 12V and GND Between 5V and GND The terminal block or the crossover cable is connected wrongly The capacitor C01 line filter L01 resistor R64 or the diode DBO1 is defective TO1 is defective ICO2 and TO1 are defective Push button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between CN51 and No 1 of CNO1 DC 15 60V 51 and IC52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FILTER PRE DEF Hi POWER are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN21 is defective Push button once to start the unit Shorten the restart delay timer Set the operation mode to COOL Set the fan speed level to AUTO Set the preset temperature much lower than the room temperature The unit com pressor operates continuously in the above condition 1 Check whether or not the compressor operates 2 Check whether or not the OPERATION indicator flashes The temperature of the indoor heat exchanger is extremely low The connection of the heat exchanger sensor is loose T
85. stallation plate horizontally in the wall When installing the installation plate with a mounting screw do not use the anchor bolt hole Otherwise the unit may fall down and result in personal injury and property damage N O Installation plate lt Keep horizontal direction gt E O X Projection 5 mm dia hole 15 mm or less Z Mounting screw 24 x 252 YS Clip anchor local parts Fig 9 3 4 Failure to firmly install the unit may result in personal injury and property damage if the unit falls n case of block brick concrete or similar type walls make 5 mm dia holes in the wall e Insert clip anchors for appropriate 7 mounting Screws NOTE Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it FILE NO SVM 12072 9 3 3 Wiring connection How to connect the connecting cable Wiring of the connecting cable can be carried out without removing the front panel 1 Remove the air inlet grille Open the air inlet grille upward and pull it toward you 2 Remove the terminal cover and cord clamp 3 Insert the connecting cable according to the local cords into the pipe hole on the wall 4 Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 20 cm from the front 5 Insert the
86. t to fall water leakage fire or electrical shock After the installation work ensure that there is no leakage of refrigerant gas If the refrigerant gas leaks out of the pipe into the room and is heated by fire or something else from a fan heater stove or gas range it causes generation of poisonous gas Make sure the equipment is properly earthed Do not connect the earth wire to a gas pipe water pipe lightning conductor or telephone earth wire Improper earth work may be the cause of electrical shock Do not install the unit where flammable gas may leak It there is any gas leakage or accumulation around the unit it can cause a fire Do not select a location for installation where there may be excessive water or humidity such as a bathroom Deterioration of insulation may cause elestrical shock or fire Installation work must be performed following the instructions in this installation manual Improper installation may cause water leakage electrical shock or fire Check the following items before operating the unit Be sure that the pipe connection is well placed and there are no leaks Check that the service valve is open If the service valve is closed it may cause overpressure and result in compressor damage At the same time if there is a leak in the connection part it may cause air suction and overpressure resulting burst or injury In pump down operations ensure to perform the following procedures Do not inject a
87. the room temperature the capacity is adjusted by the compressor revolution Set temp Ts Room temp Ta Ts Correction of Hz signal Detection of electromotive force of compressor motor winding Detection of motor speed operation Hz and rotor position Correction value of Hz signal lt Operating Hz Inverter output change Commutation timing change Change of compressor speed FILE NO SVM 12072 Description 1 The difference between set temperature on remote controller Ts and room temperature Ta is calculated 2 According to the temperature difference the correction value of Hz signal which determines the compressor speed is set up 3 The rotating position and speed of the motor are detected by the electromotive force occurred on the motor winding with operation of the compressor 4 According to the difference resulted from comparison of the correction value of Hz signal with the present operation Hz the inverter output and the commuta tion timing are varied 5 Change the compressor motor speed by outputting power to the compressor The contents of control operation are same in cooling operation and heating operation Current release control About Current release control Please refer to a service manual of connected Multi outdoor unit 4 Release protective control by tempera ture
88. tion as shown on figure 4 6 Securely connect the control wire to terminal of display unit board as shown on figure 5 tighten firmly but not over 0 12 N m 0 01 kgf m 7 Setthe control wire throughout at slot on front cover of display unit then reassembly display with main casing by reverse process of figure 2 and 3 Make sure the control wire must not be pressed by front and rear cover of display unit 8 Set the control wire out from indoor unit same portion as power supply and connecting cable as shown on figure 6 9 Reassembly the indoor unit by reverse process of 1 to 3 Air inlet grille Display unit Fig 9 3 7 FILE NO SVM 12072 70 mm Wire size 28 22AWG or 0 08 0 32 Outer diameter not over 4 7 mm control wire length 30 m or less Notch for wire out E 8782103 AN AE VOE E 02709 is 5 H Je CEN 7 HE Tighten firmly Terminal but not over ermina Control wire 0 12 N m 0 01 kgf m Y Control wire Fig 9 3 8 For remote controller 1 2 Remove cover of remote controller by sliding down and take it out If batteries are exist please take them out The combination of using wire controller and batteries may cause of batteries explosion Make hole for insert control wire by use screwdriver break the polyester sheet as shown
89. tion is received only the timer indicator light 2 The period of the Self Cleaning operation operation performed prior to the reception of the stop code 3 After the Self Cleaning operation has been performed for the specified period the unit stops operating During Self Cleaning operations The louver opens slightly The indoor fan operates continuously at a speed of 500 rpm Self Cleaning operation times Operation time Self Cleaning operation time No Self Cleaning operation performed 0 minutes Up to 10 minutes Cooling Auto cooling Dry 10 minutes or longer 30 mins Heating Auto heating Auto fan only No Self Cleaning operation performed Shutdown To stop an ongoing Self Cleaning operation at any time Press the start stop button on the remote controller twice during the Self Cleaning operation After pressing the button for the first time press it for the second time without delay within 10 minutes FILE SVM 12072 9 Self Cleaning function Operation display Self Cleaning diagram ON OFF OFF FCU fan ON ON rpm is depend on presetting 500RPM OFF FCU louver OPEN OPEN 12 7 CLOSE Timer display ON or OFF ON ON or OFF depend on presetting of timer function depend on presetting of timer function Compressor ON or OFF depend on presetting per room temperature OFF CDU fan ON or OFF depend o
90. tive circuit operation for connecting cable and serial signal system OPERATION Green FILTER Orange Protective circuit operation for outdoor board Flashing display 5 Hz OPERATION Green TIMER Yellow Protective circuit operation for others FILTER Orange including compressor Flashing display 5 Hz NOTES 1 The contents of items B and C and a part of item E are displayed when air conditioner operates 2 When item B and C and item B and a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing FILE NO SVM 12072 10 4 Self Diagnosis by Remote Controller Check Code 1 Ifthe lamps are indicated as shown B to E in Table 10 3 1 execute the self diagnosis by the remote controller 2 When the remote controller is set to the service mode the indoor controller diagnoses the operation condi tion and indicates the information of the self diagnosis on the display of the remote controller with the check codes If a fault is detected all lamps on the indoor unit will flash at 5Hz and it will beep for 10 seconds Beep Beep The timer lamp usually flashes BHz during self diagnosis 10 4 1 How to Use Remote Controller in Service Mode NN TOSHIBA Y xp e kT AMAA Ote AIEEE HiPOWER ECO za i
91. used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280 to 380V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc lt Discharging method gt 1 Remove the inverter cover plating by opening four mounting claws 2 As shown below connect the discharge resistance approx 100040W or plug of the soldering iron to voltage between terminals of the C14 CAUTION HIGH VOLTAGE is indicated electrolytic capacitor 500uUF 400V or 760uF 400V P C board and then perform discharging Discharging position Discharging period 10 seconds or more Plug of soldering iron te end Inverter cover P C board Soldered surface FILE NO SVM 12072 10 1 First Confirmation 10 1 1 Confirmation of Power Supply Confirm that the power breaker operates ON normally 10 1 2 Confirmation of Power Voltage Confirm that power voltage is AC 220 230 240 10 If power voltage is not in this range the unit may not operate normally 10 1 3 Operation Which is not a Trouble Program Operation For controlling the air conditioner the program operations are built in the microcomputer as desc
92. utton to turn the unit When short timer is activated all setting on the remote operates immediately besides all indicatiors on front panel turns ON continuously for 3 seconds 14 Comfort Operation flow and applicable data etc One touch comfort is the fully automated operation that is set according to the preferable condition in a region Fan Operation AUTO AUTO L Time after operation starts min AUTO L Fan operates depends on the setting temperature and room temperature During the One Touch Comfort mode if the indoor unit receives any signal with other operation mode the unit will cancel the comfort mode and operates according to the signal received FILE NO SVM 12072 Description Operation condition for model to Europe market When an indoor unit receives One Touch Comfort Signal from the remote controller the indoor unit operates as following 1 Air conditioner starts to operation when the signal is received even if the air conditioner was OFF 2 Operation mode is set according to room temperature the same as AUTO mode 3 Target temperature is 24 C 4 Louver position is set as stored position of the operating mode 5 Fan is controlled as followings 15 Hi POWER Mode Hi POWER button on the remote controller is pressed When Hi POWER button is pressed while the indoor unit is in Auto Cooling or Heating operation Hi POWER mark is indicated
93. which the remote controller selection has been set to B receives the signal of the remote control ler also set to B At the factory the remote controller selection is set to A on all the indoor units There is no A setting display 11 QUIET mode Operation flow and applicable data etc When the QUIET button is pressed the fan of the indoor unit will be restricted the revolving speed at speed L until the QUIET button is pressed once again cancel Quiet mode FILE NO SVM 12072 Description Quiet mode is the system which control the revolving speed of indoor fan to work constantly at lower than speed L In addition noise level of indoor unit is less than usual Remarks 1 Quiet mode is unable to work in dry mode 2 Quiet mode is appropriate to work with less cooling load and less heating load condition Because of the fan speed L may cause not enough the cooling capacity or heating capacity 12 COMFORT SLEEP Cooling mode e The preset temperature will increase as show on ECO operation Item No 6 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to select the hours 1hr 3hr 5hr or 9hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode Heating mode e The preset temperature will drop down as show on ECO operation Item No 6 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to setect thehours
94. y the Main Parts 10 8 1 How to Check the P C Board Indoor Unit 1 Operating precautions 1 When removing the front panel or the board be sure to shut off the power supply breaker 2 When removing the PC board hold the edge of the PC board and do not apply force to the parts 3 When connecting or disconnecting the connectors on the board hold the whole housing Do not pull at the lead wire 2 Inspection procedures 1 When a PC board is judged to be defective check for disconnection burning or discoloration of the copper foil pattern or this board 2 The PC board consists of the following 2 parts a Main P C board part DC power supply circuit Indoor fan motor control circuit CPU and peripheral circuits buzzer and Driving circuit of louver b Indication unit of infrared ray receiving infrared ray receiving circuit LED To check defect of the board follow the procedure described below 3 Check procedures Procedure Turn off the power supply breaker and remove the board assembly from electronic parts base Remove the connecting cables from the terminal block Table 10 8 1 Check points Check whether or not the fuse F01 is blown FILE NO SVM 12072 Impulse voltage was applied or the indoor fan motor short circuited Remove the connector of the motor and turn on the power supply breaker If OPERATION indicator flashes once per second it is not nece

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