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1. BRW BROWN TERMINAL 2 1 IN INDOOR i OUTDOOR VEL YELLOW BLOCK UNIT UNIT BLU BLUE BLK BLACK GRY GRAY E BLK WHI RED GRN amp YEL GREEN amp YELLOW Iowa 00 007070 7777077077 m Brul LINE FILTER Se B HEAT EXCHANGER SU rd Power bor SENSOR FUSE 1 OUER WHI _ BLK DND F01 R04 F 12 o BLK T3 1 5A 5VDC 250VAC THERMO SENSOR ma EN TA C143 Mo 1 Drive 2 cN13l WED y QV HD rubi 29g Toni amp lt amp a oO 1 ulzl amp x a 2 gt o m e SUR MAIN P C BOARD z WP 004 MCC861_ o SES CNO8 J ft SIs HA AC FAN MOTOR JEM A A Simple Check for Failure Diagnosis Check Item Diagnosis Result OPERATION INDICATOR Check to see if the OPERATION indicator goes on and off when the main switch or breaker is turned on Check the primary and secondary voltage of the transformer Check the power supply voltage between 1 and 2 Refer to the name plate Check the primary and secondary voltage of the transformer Check the fluctuating voltage between 2 and 3 15 60VDC Check to see if the fuse blows out Check the R04 of the varistor DC5V Check the voltage at the No 4 pin on CN13
2. FILE NO SVM 05027 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 26 35 40 mm 029 52 To connect the pipe after installation of the unit figure Outward form of indoor unit 30 mm or less 26 35 40 mm or less 29 52 g Use polisin polyethylene core or the like for bending pipe Use the handle of screwdriver etc Fig 9 2 15 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 e 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 lt Indoor unit Auxiliary pipes YPP Connecting cable Installation plate Fig 9 2 16 e Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit e Carefully connect the auxiliary pipes and connecting pipes to each other and
3. Flow meter Stop valve Nitrogen gas cylinder From Nitrogen cylinder KS I Nitrogen gas Rubber plug Fig 2 5 1 Prevention of oxidation during brazing 13 3 1 Indoor Unit Front panel Knock out system FILE NO SVM 05027 3 CONSTRUCTION VIEWS Air filter Air inlet 275 Air outlet Heat exchanger Knock out system Ki 8 SE Drain hose 0 54m Connecting pipe 0 43m A 320 Flare 26 35 Hanger Connecting pipe 0 33m For 13 series Flare 29 52 For 16 series Flare 212 7 620 235 235 For stud bolt 215 215 28 210 _ Minimum 4 For stud bolt 6 TS For stud bolt 226 to ceiling 8 C 8 amp i it _ Minimum Minimum distance distance io to ceiling ceiling 3 CN 170 or more e E ain I YS Hanger Hanger 52 18 90 150 _ 160 M160N 150 90 Wireless
4. Refrigerant Refrigerant cylinder Electronic balance cylinder Electronic balance Siphon R410A refrigerant is HFC mixed refrigerant Therefore if it is charged with gas the composition of the charged refrigerant changes and the characteristics of the equipment varies Fig 2 4 2 2 5 Brazing of Pipes 1 Phosphor bronze brazing filler tends to react 2 5 1 Materials for brazing with sulfur and produce a fragile compound water solution which may cause a gas leakage 1 Silver brazing filler Therefore use any other type of brazing filler at silver and copper It is used to join iron copper or with a paint copper alloy and is relatively expensive though it excels in solderability 2 When performing brazing again at time of servicing use the same type of brazing filler 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to 2 5 2 Flux join copper or copper alloy 1 Reason why flux is necessary By removing the oxide film and any foreign matter on the metal surface it assists the flow of brazing filler e Inthe brazing process it prevents the metal surface from being oxidized e By reducing the brazing fillers surface tension the brazing filler adheres better to the treated metal 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak in a
5. co lO e o 5 m MCC 867 03 COMPONENT bc T R06 Top View T01 IC01 c02 R01 Top View 83 11 3 Outdoor Unit Part name Common procedure Front cabinet Procedures 1 Detachment 1 Stop operation of the air conditioner and turn off the main switch of the breaker for the air conditioner 2 Remove the valve cover ST1T 4 x 102 1 pc e After removing screw remove the valve cover pulling it downward 3 Remove wiring cover ST1T 4 x 10 2 pcs and then remove connecting cable 4 Remove the upper cabinet ST1T 4 x 102 2 pcs e After removing screws remove the upper cabinet pulling it upward 2 Attachment 1 Attach the upper cabinet ST1T 4 x 102 2 pcs e Hook the rear side of the upper cabinet to claw of the rear cabinet and then put it on the front cabinet 2 Perform cabling of connecting cable and attach the wiring cover Insert the upper part into the upper cabinet insert claw which has been hooked to the lower part into the square hole and then fix it with screw ST1T 4 x 102 1 pc 3 Attach the valve cover ST1T 4 x 102 1 pc e Insert the upper part to the upper cabinet set hook claw of the valve cover to square holes at three positions of the main unit and attach it pushing upward
6. Remote control To item of How to judge whether remote control is good or bad of the Judgment of trouble by symptom Louver motor 24BYJ48 Measure the resistance value of each winding coil by using the tester Under normal temp 25 C Position Resistance value 1102 1103 1104 1105 3804400 Indoor fan motor 10 8 4 Outdoor unit Part name Compressor Model DA89X1F 23F For 13NAV Since judgment of DC motor is difficult on the single motor refer to 10 5 1 3 Checking procedure Measure the resistance value of each winding by using the tester Red Position Resistance value Red White White Black Black Red 0 51 to 0 570 Under 20 C Compressor Model DA89X1F 23F For 16NAV Measure the resistance value of each winding by using the tester Red AY Position Resistance value Red White White Black 0 592 Black Red Under 20 C Outdoor fan motor Model ICF 140 43 4 Measure the resistance value of winding by using the tester Position Resistance value Red White White Black 210 Black Red Red AY 76 For details refer to Section 10 9 Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS outdoor heat exchanger temperature sensor TE FILE NO SVM
7. 1 Detachment 1 Perform work of item 1 of 2 Remove screw ST1T 4 x 102 2 pc of the front cabinet and inverter cover and screws ST1T 4 x 102 3 pcs of the front cabinet and lower part e The left side of the front is made to insert to the rear cabinet so remove it pulling upward 2 Attachment 1 Insert claw at the left side of the front into the rear cabinet 2 Hook the lower part at the right side of the front to concave part of the bottom plate Insert claw of the rear cabinet into square hole of the front cabinet 3 Attach the removed screws to the original positions FILE NO SVM 05027 Remarks Upper cabinet Wiring cover Valve cover Concave section FILE NO SVM 05027 Part name Procedures Remarks Inverter 1 Perform work of item 1 of 0 Inverter cover assembly 2 Remove screw ST1T 4 x 102 2 pc of the P C board upper part of the front cabinet Soldered surface If removing the inverter cover in this condition P C board can be checked e f there is no space in the upper part of the upper cabinet perform work of 2 Be careful to check the inverter because high voltage circuit is incorporated in it 3 Perform discharging by connecting polarity by discharging resistance approx 100040W or plug of soldering iron to terminals of the C14 printed CAUTION
8. 41 OOO MEDE HiPOWER Gum 0 e In the illustration all indications are indicated for explanation During operation only the relevant indications will be indicated on the remote control AUTO T em all 1 o FILE NO SVM 05027 9 INSTALLATION PROCEDURE 9 1 Safety Cautions 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 245 IEC66 1 5 mm or more CAUTION New Refrigerant Air conditioner Installation THIS AIR CONDITIONER USES THE NEW HFC REFRGERANT R410A WHICH DOES NOT DESTROY THE OZONE LAYER R410A refrigerant is apt to be affected by impurity 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 into the refrigerating cycle of a new refrigerant air conditioner To avoid mixing refrigerant and refrigerating machine oil the sizes of charging port connecting sections on the main unit are different from those for the conventional refrigerant and different size to
9. Is it possible to detect DC 15V between DD and 38 of motor connector CN10 Start to operate the indoor unit At this time is it possible to detect DC 1V or more between and DO of motor connector CN10 Replace main E P C board Is it possible to NO Turn off indoor unit change airflow and remove connector level to High from motor YES Is it possible to rotate cross Then start to operate flow fan by hand properly indoor unit with remote control Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby At this time is it possible to detect DC 1V or more between 50 and DO of motor connector CN10 Start to operate the indoor unit in except heating operation At this time is it possible to detect DC 1V or more between and 8 O of motor connector CN10 Check this condition within 15 seconds after starting unit Fan motor operates normally Replace bearing 66 FILE NO SVM 05027 4 Indoor fan motor starts rotating by turning on power supply alone For 16k lt Cause gt The IC is built in the indoor fan motor Therefore the P C board is also mounted to the inside of the motor If the P C board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply lt Confirmation procedure gt 1 Remove the front panel Remove 4 screws 2 Remove cover
10. SI ST1T 4 x 10 2 pcs EE Part name Pulse modulating valve coil Fan guard Procedures 1 Detachment 1 Perform work of item 1 of 2 Turn the coil clockwise counterclockwise by 90 degrees and remove coil from the pulse modulating valve 2 Attachment 1 Set take out part of the lead wire of coil to the coil inserting position of the pulse modulating valve and attach the coil 2 Turn the coil by 90 degrees set surely the concave part at lower part of the coil to the positioning hole of the pulse modulating valve and then fix the coil The pulse modulating valve has A room side and B room side After mounting it check that coil at B room side Red marking is marked on the pulse modulat ing valve is connected to CN13 of the control board assembly 1 Detachment 1 Perform work of item 1 of and 2 Remove the front cabinet and put it down so that fan guard side directs downward Perform work on a corrugated cardboard cloth etc to prevent flaw to the product 3 Remove the hooking claws by pushing minus screwdriver according to the arrow mark in the right figure and remove the fan guard 2 Attachment 1 Insert claw of the fan guard in the hole of the front cabinet Push the hooking claws 10 positions by hands and fix the claws All the attaching works have completed Check that all the hooking claws are fixe
11. In resetting defrost operation the compressor COMFORT SLEEP button the off timer setting stops for 50 seconds if defrost has started under changes in the sequence of 1 3 5 or 9 hours condition a to c in item1 but the compressor is O 30 Time reset to heating operation keeping operated if 8 Hi POWER operation control defrost has started under condition d in item 1 When the Hi POWER button is pushed Hi Power 5 Louver control operation is performed by changing setting When the compressor is turned off by high temp temperature and air flow display on the remote release control the vertical air flow louvers close xm control does not change once and then return to the position of previous time 1 Changing of setting temperature 6 ECONO operation control When the ECO button is pushed ECONO operation is performed by restraining air flow and compressor moter speed 1 The indoor fan speed is controlled within L as maximum speed 2 Compressor motor speed is controlled by the Setting temperature increase C difference value of room temperature and set RES 30 4n NEM temperature as shown in Fig 8 2 10 Start Fia 8 2 11 The different value of room temperature and g set temperature are separated to A B and 2 Changing of air flow Fan setting AUTO C zone Then compressor motor speed in each When the Hi POWER is started the fan of the zone are controll
12. TO lt 15 TO is abnormal lt HEAT gt Table 8 1 4 Model name 13NAV and 16NAV Compressor revolution rps To 57 4 From 58 0 gt 5 lt 5 gt 5 lt 5 Outdoor temp sensor ECONO operation TO is abnormal 30 8 2 Description of Operation Circuit Turning ON the breaker flashes the operation lamp 1Hz This is the display of power ON or notification of power failure When pushing 5 button of the remote control receive sound is issued from the main unit and the next operations are performed together with opening the vertical air flow louvers 8 2 1 Cooling operation The Remote Control MODE Button is Set to the COOL Position Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing 6 button A cooling operation signal is transmitted to outdoor unit The outdoor unit controls the outdoor fan relay R01 R02 and R03 and the compressor motor speed according to the operation command signal sent from the indoor unit When FAN button is set to AUTO the indoor fan motor operates as shown in Fig 8 2 1 When FAN button is set to LOW Z LOW MED am MED an HIGH the motor operates with a constant air flow NOTE 1 Calculated from difference in motor speed of M and
13. 1 0 mm or more 55 9 3 5 Gas leak test Check places for indoor unit Flare nut connection Valve cover Electric parts cover WV Ig 25 Check places for outdoor unit Fig 9 3 10 Check the flare nut connections for the gas leak with a gas leak detector or soap water 9 3 6 Test operation To switch the TEST RUN COOL mode push RESET button for 10 sec The beeper will make a short beep Fig 9 3 11 FILE NO SVM 05027 9 3 7 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 56 Press and hold down the RESET button for about 3 seconds After 3 seconds the electronic beeper makes three short beeps to tell you the Auto Restart has been selected To cancel the Auto Restart follow the steps described in the section Auto Restart Function of the Owner s Manual FILE NO SVM 05027 10 HOW TO DIAGNOSE THE TROUBLE The pulse modulating circuits are mounted to both indoor and outdoor units Therefore diagnose troubles according to the diagnosis procedure as described below Refer to the check points in servicing written on
14. CONDENSER ASSEMBLY VALVE PACKED 6 35 DIA VALVE PACKED 9 52 DIA BONNET 6 35 DIA BONNET 9 52 DIA FIXING PLATE VALVE CAPILLARY TUBE 1 5 DIA G CAPILLARY TUBE 1 5 DIA FILE NO SVM 05027 Location Part Description No No 5 43T46326 43T63305 43758303 43754304 43763005 43720307 43121355 43147001 43147325 43749308 43746319 43763304 43763306 43179305 92 BODY PMV COIL PMV REACTOR BIMETAL THERMO HOLDER THERMOSTAT BIMETAL FAN PROPELLER MOTOR FAN NUT FLANGE BOLT COMPRESSOR M6 RUBBEER CUSHION 4 WAY VALVE AWAY VALVE COIL ASSEMBLY HOLDER SENSOR DRAIN NIPPLE FILE NO SVM 05027 12 4 Outdoor Unit For 16NAV GS CAPILLARY TUBE 1 5 DIA Location Part m Location Part n 01 16 43T00427 FRONT CABINET ASSEMBLY 43T46326 BODY PMV 43T00381 BACK CABINET ASSEMBLY 43T63305 COIL PMV 43T03329 BASE 43T58303 REACTOR 43T00380 UPPER CABINET ASSEMBLY 43T54304 BIMETAL THERMO 43T09318 GUARD FAN 43T63005 HOLDER THERMOSTAT BIMETAL 43T52310 PACKED VALVE COVER ASSEMBLY 43120307 FAN PROPELLER 43T62311 ELECTRIC PART COVER 43121355 MOTOR FAN 43T41359 COMPRESSOR DA130A1F 24F 43147001 NUT FLANGE 43143354 CONDENSER ASSEMBLY 43747325 BOLT COMPRESSOR 6 43146308 VALVE PACKED 6 35 DIA 43149308 RUBBEER CUSHION 43146307 VALVE PACKED 12 7 DIA H4 43T46319 4 WAY VALVE 43147331 BONNET 6 35 DIA 43T63304 4WAY VALVE COIL ASSEMBLY 43147333 BONNET 12 70 DIA
15. Nominal Capacity Capacity ratio lt Heating gt 120 110 100 90 80 70 60 50 e Conditions Indoor DB 20 G Indoor air flow High Pipe length 5m 10 9 8 7 5 54320123456 Outdoor temp C FILE NO SVM 05027 2 REFRIGERANT R410A This air conditioner adopts the new refrigerant R410A which does not damage the ozone layer The working pressure of the new refrigerant R410A is 1 6 times higher than conventional refrigerant R22 The refrigerating oil is also changed in accordance with change of refrigerant so be careful that water dust and existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the air conditioner using the new refrigerant during installation work or servicing time The next section describes the precautions for air conditioner using the new refrigerant Conforming to contents of the next section together with the general cautions included in this manual perform the correct and safe work 2 1 Safety During Installation Servicing As R410A s pressure is about 1 6 times higher than that of R22 improper installation servicing may cause a serious trouble By using tools and materials exclu sive for R410A it is necessary to carry out installation servicing safely while taking the following precautions into consideration 1 Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A If o
16. button once more or use the remote control to turn it off When the unit is in operation Operation Motions Push RESET button for more The unit is in operation The orange lamp is on than three seconds unit stops operating The orange lamp is turned off After approx three seconds The unit beeps three times If the unit is required to operate at this time push RESET button once more or use the remote control to turn it on While this function is being set if the unit is in 8 5 Filter Check Lamp operation the orange lamp is on I When the elapsed time reaches 1000 hours the filter 8 4 3 Power failure during timer operation check lamp indicates After cleaning the filters turn off the filter check lamp When the unit is in Timer operation if it is turned off because of power failure the timer operation is 8 5 1 How to turn off filter check lamp cancelled Therefore set the timer operation again Push RESET button on the indoor unit Note If RESET button is pushed while the filter check lamp is not indicating the indoor unit will start the Automatic Operation 39 8 6 Remote control 8 6 1 Remote control and its functions Infrared signal emitter Transmits a signal to the indoor unit START STOP button Push the button to start operation A receiving beep is heard Push the button again to stop operation A receiving
17. e A place that allows easy installation of the piping to the outdoor unit B A place which allows the front panel to be opened e The indoor unit shall be installed as top of the indoor unit comes to at least 2 m height ON Pipe hole Also it must be avoided to put anything on the top of cue SECH the indoor unit 990 09 SR The center of the pipe CAUTION hole is above the arrow 799 mm e Direct sunlight to the indoor unit s wireless Fig 9 2 2 receiver should be avoided E 8 e The microprocessor the indoor unit should not 1 After determining the pipe hole position on the be too close to RF noise sources mounting plate drill the pipe hole 265 mm at For details see the owner s manual a slight downward slant to the outdoor side Remote controller NOTE e 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 A place where there are no obstacles such as a curtain that may block the signal from the indoor unit e Do not install the remote control in a place exposed to direct sunlight or close to a heating source such as a stove For installation of the indoor unit use the paper pattern e Keep the remote control at least 1 m apart from the the back nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise
18. 0 5 to 1 0 Wing nut type 1 0 to 1 5 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 1 0 to 2 0 Nominal diameter 0 5 to 1 0 Table 2 2 5 Flare and flare nut dimensions for R410A Outer diameter mm Thickness mm Dimension mm C 1 0 to 2 0 Flare nut width mm Nominal diameter Table 2 2 6 Flare and flare nut dimensions for R22 Outer diameter mm Thickness mm Dimension mm C Flare nut width mm FILE NO SVM 05027 RN 45e Fig 2 2 2 Relations between flare nut and flare seal surface 2 Flare Connecting Procedures and Precautions When it is strong the flare nut may crack and a Make sure that the flare and union portions do may be made non removable When choosing not have any scar or dust etc the tightening torque comply with values designated by manufacturers Table 2 2 7 b Correctly align the processed flare surface with shows reference values the union axis Note When applying oil to the flare surface be sure to use oil designated by the manufacturer If any other oil is used the lubricating oils may deteriorate and cause the compressor to burn out c Tighten the flare with designated torque by means of a torque wrench The tightening torque for R410A is the same as that for conventional R22 Incidentally when the torque is weak the gas leakage may
19. D 2 or FILE NO SVM 05027 If fuse was blown be sure to check the electrolytic capacitor and diode block DBO1 Connect discharge resistance approx 100Q40W or soldering iron plug between terminals of the electrolytic capacitor 760uF of C14 with printed CAUTION HIGH VOLT AGE on PC board Discharging position Discharging period 10 seconds or more Plug of soldering OK if 760uF gt DC280 to 380 V Remove CN300 by pushing the part an arrow because CN01 is a connector with lock Resistance between phases should be approx 55 to 770 Should be 10MQ or more FILE NO SVM 05027 winding of compressor Check fan motor position detect signal Replace com e Operation Replace outdoor fan motor Replace control board assembly Check compressor winding resistance Replace control board Replace compressor 10 8 How to Check Simply 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 P C board be sure to shut off the power supply breaker 2 When removing the P C board hold the edge of the P C board and do not apply force to the parts 3 When connecting or disconnecting the connec tors on the P C board hold the whole housing Do not pull at the lead wire Check winding resistance between phases of compressor and resistance between outdoor
20. Gas leak reset If return serial signal does not 2 Instantaneous power stop between indoor terminal failure block and replace inverter P C board If signal stops between indoor terminal block 2 and 3 replace indoor P C board 4 Compressor does not All off Displayed when 1 Trouble on compressor 15 rotate Current protective error is detected 2 Trouble on wiring of compressor circuit does not operate Missed phase when a specified time passed after compressor had been activated IC Discharge temp exceeded All off Displayed when 1 Check discharge temp sensor TD I 117 C error is detected 2 Degassing 3 Trouble on P M V 7 Break down of compressor All off Displayed when 1 Check power voltage 220 240 V II error is detected 10 2 Overload operation of refrigeration cycle Check installation condition Short circuit of outdoor diffuser TTT Four way valve inverse error Operation 1 Check 4 way valve operation LI TC sensor value lowered continues during heating operation 62 FILE NO SVM 05027 10 5 Judgement of Trouble by Every Symptom 10 5 1 Indoor unit Including remote controller 1 Power is not turned on Does not operate entirely For 13NKV Turn off power supply once and 5 second later turn it on again NO Is OPERATION lamp blinking YES Is it possible to turn on power supply by pressing 6 b
21. Gas side 212 7 Outdoor unit Liquid side 26 35 Gas side 012 7 Maximum length Per unit 15 Maximum chargeless length 15 Maximum height difference 10 Refrigerant Name of refrigerant R410A Weight 0 95 Wiring connection Power supply 3 Wires includes earth Outdoor Interconnection 4 Wires includes earth Usable temperature range Indoor Cooling Heating 21 32 Up to 27 G Outdoor Cooling Heating 15 43 10 24 e The specification may be subject to change without notice for purpose of improvement 1 2 Operation Characteristic Curve lt Cooling gt Current A 10 Conditions Indoor DB 27 C WB 19 Outdoor 35 Air flow High Pipe lenght 5 m Voltage 230V 40 60 80 100 120 Compressor speed rps FILE NO SVM 05027 Heating 10 Current A Conditions Indoor DB 20 C Outdoor DB 7 C WB 6 C Air flow High Compressor speed rps 1 3 Capacity Variation Ratio According to Temperature Cooling Capacity ratio 96 105 Current Limited Start SS OPES depo ceu SS peret eee emm e Conditions Indoor DB27 C WB19 C Indoor air flow High Pipe length 5m 50 32 33 34 35 36 37 38 39 40 41 42 43 Outdoor temp C Capacity ratio 100
22. Outdoor Cooling Heating dBe A dBeA 48 50 Indoor unit Unit model RAS 13NKV E A Dimension Height mm 275 Width mm 790 Depth mm 218 Net weight 10 Fan motor output 20 Air flow rate Cooling Heating 590 620 Outdoor unit Unit model RAS 13NAV E A Dimension Height 550 Width 780 Depth 270 Net weight 36 Compressor Motor output 750 Type Single rotary type with DC inverter variable speed control Model DA89X1F 23F Fan motor output 43 Air flow rate Cooling Heating 2410 2410 Piping connection Type Flare connection Indoor unit Liquid side 26 35 Gas side 29 52 Outdoor unit Liquid side 26 35 Gas side 29 52 Maximum length Per unit 15 Maximum chargeless length 15 Maximum height difference 10 Refrigerant Name of refrigerant R410A Weight 0 8 Wiring connection Power supply 3 Wires includes earth Outdoor Interconnection 4 Wires includes earth Usable temperature range Indoor Cooling Heating 32 Up to 27 Outdoor Cooling Heating 15 43 10 24 e The specification may be subject to change without notice for purpose of improvement Unit model Indoor FILE NO SVM 05027 RAS 16NKV E A
23. interference e The location of the remote control should be determined as shown below view 7 EN Zin lt Mounting the installation plate gt Anchor bolt holes Side view 7 2 m or more from floor gt T oe A Hook Indoor unit 3 5 i Installation i E Pipe hole Thr ad hole Plate Reception Mounting screw Reception en range Remote Indoor unit Weight range control Axial distance Fig 9 2 3 Fig 9 2 1 48 lt When the installation plate is directly mounted on the wall gt 1 Securely fit the installation plate onto the wall by FILE NO SVM 05027 9 2 3 Electrical work The supply voltage must be the same as the rated voltage of the air conditioner screwing it in the upper and lower parts to hook up 2 Prepare the power source for exclusive use with the the indoor unit air conditioner 2 To mount the installation plate on a concrete wall with anchor bolts utilize the anchor bolt holes as NOTE illustrated in the above figure 3 Install the installation plate horizontally in the wall Wire type More than H07RN F or 245 IEC66 1 0 mm or more 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 Inst
24. 05027 5 SPECIFICATION OF ELECTRICAL PARTS 5 1 Indoor Unit For 13NKV Parts name Fan motor for indoor SKF 220 20 4A 1 Specifications AC Motor with 150 C thermo fuse Thermo sensor TA sensor 10 at 25 AC AC transformer TO1 10 187 276V 6VA Microcomputer uPD780024AGK Heat exchanger sensor TC sensor 10 kQ at 25 C Line filter LO1 SS11V 06270 27 uH AC 0 64A Diode DBO1 KBPO6M 1 5A 420V Capacitor C50 LXV35VB2200MJ20 2200uF 35 V Fuse F01 BET 3 15A 250VAC T3 15A 250 V Regulator IC 1 08 NJM7812 12VDC 1 5A max Regulator IC IC11 NJM7805 5VDC 1 5A max Varistor R21 R109 15G561K 560V Louver motor 5 2 Incoor Unit For 16NKV Parts name Fan motor for indoor 24BYJ48 ICF 340 30 2 DC 12V Specifications DC 340 V 30 W Thermo sensor TA sensor 10 at 25 DC DC transformer T01 SWT 70 DC 390 V Secondary DC 15 V 12 V 7 V Microcomputer uPD780024AGK Heat exchanger sensor TC sensor 10 at 25 Line filter L01 SS11V 06270 27mH AC 0 6A Diode DB01 D3SBA60 4A 600 V Capacitor C03 KMH450VSSN120M25C 120uF 450 V Fuse F01 FCU250V 3 15A T3 15A 250 V Power supply IC ICO1 STR L472 Varistor R21 R109 15G561K 560 V Resistor RO1 RF
25. 05027 Disconnect the connector and measure resistance value with the tester Normal temperature Temperature Sensor TA TC k TGa Heat pump model only TO TS TE Refer to the TA TC characteristic table in Indoor Refer to Table 10 8 3 No 1 10 8 5 Checking Method for Each Part Part name Electrolytic capacitor For raising pressure smoothing Checking procedure 1 Turn OFF the power supply breaker 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 sjCase that product is good Pointer swings once and returns slowly When performing test once again Soldered Under another polarity the surface o pointer should return Heat sink IGBT side C12 C13 C14 760uF 400V Converter module 1 Turn OFF the power supply breaker 2 Discharge all four capacitors completely 3 Check that the normal rectification characteristics are shown in continuity test by the tester Diode check Tester rod Resistance value o in good product 50kQ or more 00 in trouble e
26. 3 Checking procedure For 13NKV Procedure Shut off the power supply and remove the P C board assembly from the electronic parts base Remove the connecting cable from the terminal block Table 10 6 1 Check Point Symptom 1 Is the fuse blown Causes Application of shock voltage Overload by short circuit of the parts Remove the connector for the motor and turn the power on If the OPERATION lamp blinks 0 5 sec ON 0 5 sec OFF when the power turning on the checking points described as 1 4 of right column are not necessary to perform Voltage check 1 Between FO1 and CN23 AC 220 240 V 2 Between and of C50 DC 14 31V 3 Between 5V 4 Between 12V GND GND and and AC power cord is defective Poor contact of the terminal plate Capacitor C01 C15 is defective Line filter LO1 is defective Capacitor C50 is defective Diode DB01 is defective T01 1208 IC11 are defective Start the operation with the system which the time of the restart delay timer is shortened 1 All indicators light for 3 sec 2 Indicators do not indicate normally after approximate 3 sec Defective indicator or poor housing assembly CN13 Make the operation status by pressing once the 6 button 1 The time of the restart delay timer is shortened 2 Cool operation 3 Air volume AUTO 4 Make the setting temperature lower enough than room tem
27. 43T63306 HOLDER SENSOR 43T63303 FIXING PLATE VALVE 43779305 DRAIN NIPPLE 43147008 CAPILLARY TUBE 1 5 DIA 93 12 5 Outdoor Unit E Parts Assy FILE NO SVM 05027 Location Part 43T62320 43T62321 43T69484 43T69485 HEATSINK FOR 13NAV 43T60326 HEATSINK FOR 16NAV 43750305 BOARD FOR 13NAV 43T50304 PC BOARD FOR 16NAV 43T62313 706 TE Sensor 6 TS Sensor 6 TO Sensor 6 TD Sensor 4 705 Location Part mr FUSE TEMPERATURE SENSOR TEMPERATURE SENSOR BASE PLATE PC 43T60352 TERMINAL BLOCK 6P 94 TOSHIBA CARRIER CORPORATION
28. Check the operating pressure from service port and add gas if pressure is low 70 10 7 How to Diagnose Trouble in Outdoor Unit 10 7 1 Summarized inner diagnosis of inverter assembly Table 10 7 1 Remove Preparation connector of compressor NG Replace fuse Check electrolytic capacitor diode block DBO1 etc Check 25 A fuse Part No FO1 OK Check terminal voltage of electrolytic capacitor Check electrolytic capacitor diode DBO1 etc Operation Does outdoor NO fan rotate YES Does LED on control YES board flash or go on NO Measurement Remove connector CN300 of outdoor fan motor and using tester check resistance value between every phase at motor side Check Measurement Replace outdoor fan motor Turn OFF the power breaker and remove connector which connects inverter and compressor e Check whether 25 A fuse on the control board assembly is blown or not FO1 Turn on power breaker and operate the air conditioner in COOL mode by short circuit of the timer Measure terminal voltage of electrolytic capacity 760uF 400WV x 3 After operation turn off the power breaker after 2 minutes 20 seconds passed and discharge the electrolytic capacity by soldering iron Check voltage between motor phases Is not winding between D D 2 3 or D 3 opened or short circuited e Is not frame grounded with
29. FILE NO SVM 05027 10 9 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1 Symptom e Outdoor fan motor does not rotate Outdoor fan motor stops within several ten seconds though it starts 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 or 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 and CN301 of the outdoor fan motor from the inverter gt Does the fan rotate without trouble NO fe when rotating it with hands YES CN300 If the resistance value between Red lead White lead White lead Black lead NO Black lead D Red lead of the connector CN300 Motor winding is 17 to 25Q it is normal YES Y 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
30. Fig 9 3 6 After the piping has been connected to the indoor unit you can perform the air purge together at once AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using a vacuum pump Do not use the refrigerant in the outdoor unit For details see the manual of the vacuum pump Using a vacuum pump Be sure to use a vacuum pump with counter flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops If oil inside of the vacuum pump enters into the air conditioner which use R410A refrigeration cycle trouble may result 1 Connect the charge hose from the manifold valve to the service port of the gas side packed valve 2 Connect the charge hose to the port of the vacuum pump 3 Open fully the low pressure side handle of the gauge manifold valve 4 Operate the vacuum pump to start evacuating Perform evacuating for about 15 minutes if the piping length is 20 meters 15 minutes for 20 meters assuming a pump capacity of 27 liters per minute Then confirm that the compound pressure gauge reading is D101 kPa D76 cmHg 5 Close the low pressure side valve handle of gauge manifold 6 Open fully the valve stem of the packed valves both side of Gas and Liquid 7 Remove the charging hose from the service port 8 Securely tighten the caps on the packed valves Compound pressure gauge 101kPa 76cmHg
31. HIGH VOLTAGE is attached electrolytic capacitor Discharging period iron AN 760 on P C board 10 seconds or more Be careful to discharge the capacitor Si because the electrolytic capacitor cannot naturally discharge and voltage remains A d S according to trouble type in some cases NOTE This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting between the polarity with screw driver etc for discharging 4 Remove screw ST1T 4 x 102 2 pc fixing the main body and the inverter box 5 Remove various lead wires from the holder at upper part of the inverter box and wiring holder at right side of the terminal block 6 Remove the lead wire from the bundled part at left side of the terminal block 7 Pull the inverter box upward 8 Disconnect connectors of various lead wires Terminal block The connector is one with lock so remove it while pushing the part indicated by an arrow Requirement As each connector has a lock mechanism avoid to remove the connector by holding the lead wire but by holding the connector Be sure to remove the connector by holding the connector not by pulling the lead wire Part name Control board assembly Rear cabinet Procedures 1 Disconnect lead wires and connectors connected from the control board assembly to other pa
32. L and controlled Fig 8 2 1 Setting of air flow Fan AUTO 1 2 3 Current value A 31 FILE NO SVM 05027 Cooling capacity control e The cooling capacity and room temperature are controller by changing the compressor motor speed according to both the difference between the temperature detected by the room temperature sensor and the temperature set by TEMP button and also any change in room temperature e When compressor has been activated or reactivated it operates with Max 41 rps for 2 minutes with Max 90 rps from 2 minutes to 3 minutes and with Max 88 rps after 3 minutes passed e When room temperature is lower than set temperature indoor fan motor is operated at fan speed L as shown in Fig 8 2 1 while the outdoor unit stops Prevent freezing control If temperature of indoor heat exchanger detected by the indoor heat exchanger sensor is 5 C lower compressor motor speed is gradually lowered to prevent freezing of the indoor heat exchanger If temperature is 7 C or higher return the operation to the above item 1 Current release control The input current of compressor and outdoor fan motor Precisely inverter main circuit control section which occupy most of air conditioner input is detected by the outdoor current sensor and compressor motor speed is gradually lowered so that current value does not exceed 9 0A if current value exceeds 9 0A When the current value lowers to 8 5A retu
33. 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 Flashing display 1 Hz Power failure when power is ON Indoor indication lamp flashes OPERATION Green Which lamp Flashing display 5 Hz does flash Protective circuit operation for indoor P C board OPERATION Green TIMER Yellow Flashing display 5 Hz Protective circuit operation for connecting cable and serial signal system OPERATION Green PRE DEF Orange Protective circuit operation for outdoor P C board Flashing display 5 Hz OPERATION Green TIMER Yellow Protective circuit operation for others PRE DEF 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 control for servicing 59 FILE NO SVM 05027 10 4 Self Diagnosis by Remote Control Check Code 1 If the lamps are indicated as shown B to G in Table 9 3 1 exchanger the self diagnosis by the remote control When the remo
34. P C board PIC Operation command signal Operation Flashes when If return serial signal does not stop LI 1 is not sent to outdoor side continues trouble is between indoor terminal block detected on and 3 replace inverter P C board operation If signal stops between indoor command signal terminal block and replace and normal status indoor P C board when signal is reset 61 FILE NO SVM 05027 Block distinction Operation of diagnosis function Judgment and action Check Block Check Cause of operation Air conditioner Remarks code code status rq Zi Ondoor Inverter over current All off Displayed when Even if trying operation again all JI PC 1 protective circuit operates error is detected operations stop immediately board Short time Replace P C board IC Position detect circuit error All off Displayed when 1 Even if connecting lead wire of ILI or short circuit between error is detected compressor is removed position windings of compressor detect circuit error occurred Replace P C board 2 Measure resistance between wires of compressor and perform short circuit Replace compressor 71 Current detect circuit error All off Displayed when Even if trying operation again all L I error is detected operations stop immediately Replace P C board 171 Being out of place All off Displaye
35. clamp Terminal cover Screw Connecting cable NOTE Use stranded wire only Wire type HO7R N F or more Fig 9 2 7 Stripping length of connecting cable rear leftward connection s piping it is necessary to change the drain hose and drain cap Terminal block lt How to remove the Drains Cap gt Clip drain cap by needle nose pliers and pull out Fig 9 2 9 lt How to install the Drain Hose gt Firmly insert drain hose connecting part until hitting on a heat insulator pU s Heat insulator Drain hose Fig 9 2 10 50 lt How to fix the Drains Cap gt 1 Insert hexagonal wrench 24 mm in a center head Fig 9 2 11 2 Firmly insert drains cap Do not apply lubricating oil No gap refrigerant machine oil when e lt inserting the drain cap Application causes deterioration and drain leakage of the plug Insert a hexagon wrench 4 mm Fig 9 2 12 Firmly insert the drain hose and drain cap otherwise water may leak In case of right or left piping e 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 2 13 n case of bottom right or bottom left piping e 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
36. frames by using a tester e 5 not grounded 5 not short circuited between windings e Winding is not opened OK if 10MQ or more gt OK if 0 519 0 570 Check by a digital tester Remove connector CN300 of the outdoor fan motor turn on the power breaker and perform the operation Stops though activation is prompted Check operation within 2 minutes 20 seconds after activation stopped lt Output check of fan motor position detect signal gt While connecting connector CN301 for position detection using a tester measure voltage between 6 Between 5 5 V a One or two of three voltages should be 5 V and others should be OV When all are OV or 5 V itis not accepted b When rotating the fan slowly with hands the voltage between pins should move from OV to 5 V Check it with an analog tester 2 Inspection procedures 1 When a PC board is judged to be defective check for disconnection burning or discolora tion of the copper foil pattern or this P C board 2 The P C board consists of the following 2 parts a Main P C board part DC power supply circuit 5 V 12 V 15 V 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 P C board follow the procedure described below 72 FILE NO SVM 05027
37. inferiority because of dew drops 3 When replacing the sensor using the colored protective tube wind the color tape matching the color of that tube FILE NO SVM 05027 Remarks Cutting here Thermal 100 sensor part Connector Cutting here E E AQ Thermal constringent tube Cutting here 100 lt Winding the color tape Part name Remarks Sensor Length 3 m Sensor Spring A For spare Sensor Spring B For spare Thermal constringent tube Including one spare Color tape 9 colors Terminal 89 FILE NO SVM 05027 12 EXPLODED VIEWS AND PARTS LIST 12 1 Indoor Unit E Parts Assy 405 406 401 Location Part i Location NS aca i 43T69319 43T60002 43T69320 43T62003 TEMPERATURE SENSOR 43169079 PC BOARD ASSY WRS LED TERMINAL BLOCK 3P 43T69399 PC BOARD FOR 16NKV TEMPERATURE SENSOR 43T69473 PC BOARD FOR 13NKV CORD CLAMP 90 FILE NO SVM 05027 12 2 Indoor Unit Electric Parts Assembl Location Part Location Part Description Description No No No No 201 221 43T00414 43T09342 43T03316 43T80311 43T80310 43T09328 43170002 43179301 43T21321 43744366 43744367 43747006 43747016 43749009 43T11301 43119302 43149302 43749006 43722002 43739301 43720302 FRONT PANEL A
38. most of air conditioner input is detected by the outdoor current sensor The compressor motor speed is lowered gradually according to the range of TO outside air temp if the input current exceeds the current value determined in each zone as shown in Fig 8 2 9 so that the input current does not exceed the set value In case that the current lowered by approx 0 5A than each set value return to above item 1 35 FILE NO SVM 05027 2 Defrost operation Operation of the compressor is stopped once turn off power coupler for 4 way valves after 10 seconds and then exchange the 4 way valves After 20 seconds restart operation of the compressor Turn off the outdoor fan just when the compressor stopped If temperature of the indoor heat exchanger lowered than 38 C stop the indoor fan Zone 13NAV Room tepm Set temp C B 20 45 rps 13 43 rps 45 rps 43 rps Defrost reset Resetting operation from defrost to heating is performed when anyone of the following conditions is satisfied a Temperature of the outdoor heat exchanger Fig 8 2 10 rose to 8 C or higher b A status that temperature of the outdoor 7 COMFORT SLEEP operation control heat exchanger is 5 C or higher continued When the COMFORT SLEEP button is pushed for 80 seconds the ECONO operation actrvate together with the c Defrost operation continued for 15 minutes timer OFF function Each time of pressing
39. 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 e Judgment of suction air temperature of the indoor heat exchanger by using the indoor temp sensor TA sensor e Temperature setting of the indoor heat exchanger by using heat exchanger sensor TC sensor Prevent freezing control Louver motor control Indoor fan motor operation control LED Light Emitting Diode display control Transferring of operation command signal Serial signal to the outdoor unit e 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 controller the outdoor unit performs its role Operations followed to judgment of serial signal from indoor side e Compressor operation control e Operation control of outdoor fan motor P M V control e Detection of inverter input current
40. not performed when outdoor unit is activated because supplying power to the outdoor unit is not interrupted After positioning of the valve activate the compressor and the outdoor fan It takes approx 7 seconds for positioning of the valve and sound ticktack hitting sound to stopper is heard for approx 0 5 seconds at least of that period As the sound is low check sound by using screwdriver etc NO Replace coil valve NO temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors which are used to control electronic control valve include indoor heat exchanger sensor TC outdoor heat exchanger temp sensor TE and outdoor suction temp sensor TS YES NO Set it correctly Gas amount check and valve clogging check Remove TC sensor connector from the P C board in indoor unit Remove connector from the P C board Operate the air conditioner in COOL mode by TEMP button Pi sound is heard if keeping pushed for 10 seconds The operation enters temporary operation mode which fixes opening degree of P M V and No of revolution of compressor Check condensation at outlet of P M V and then check operating pressure from the service port Existence of condensation at outlet of P M V If there is condensation at outlet 1 4 inch 6 35mm valve side the valve is clogged Replace valve Add gas
41. occur Table 2 2 7 Tightening torque of flare for R410A Reference values 5 e Tightening torque of torque Nominal Outer diameter Tightening torque wrenches available on the market diameter mm N m kgf m N m kgf m 14 to 18 140 to 180 33 to 42 330 to 420 16 160 18 180 50 to 62 500 to 620 63 to 77 630 to 770 FILE NO SVM 05027 2 3 Tools 2 3 1 Required tools The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to prevent mixing of other refrigerant To reinforce the pressure resisting strength flare processing dimensions and opposite side dimension of flare nut For 12 70 copper pipe of the refrigerant piping are lengthened The used refrigerating oil is changed and mixing of oil may cause a trouble such as generation of sludge clogging of capillary etc Accordingly the tools to be used are classified into the following three types 1 Tools exclusive for R410A Those which cannot be used for conventional refrigerant R22 2 Tools exclusive for R410A but can be also used for conventional refrigerant R22 3 Tools commonly used for R410A and for conventional refrigerant R22 The table below shows the tools exclusive for R410A and their interchangeability Tools exclusive for R410A The following tools for R410A are required Tools whose specifications are changed for R410A a
42. of the fan motor lead wires 3 Check DC voltage with CN10 connector while the fan rotating NOTE Do not disconnect the connector while the fan rotates Use a thin tester rod P C board Indoor fan starts rotating when power supply breaker is turned ON CN10 d Check output voltage DC of the fan motor on P C board 6 Blue Yellow 5 Yellow 4 Blue Measure the voltage of the motor connector CN10 pin GND Black and pin V line Yellow 3 Yellow under condition that the indoor fan rotates 2 1 Red Above DC 0 4V P C board is defective Below DC 0 4V Motor is defective 67 FILE NO SVM 05027 5 Troubleshooting for remote control The unit does not beep at all OPERATION lamp on indoor unit is not indicated Press START STOP button Is transmission mark indicated Press RESET button on remote control Is receiver on with tip of pencil indoor unit exposed to direct sunlight Does indoor unit operate when moving remote control near receiver or indoor unit Press START STOP button YES Batteries are exhausted Is transmission mark indicated YES NO Does indoor unit beep and operate YES Remote control is defective Is there any thyristor fluorescent light nearby Does indoor unit start to operate by automatic restart function Does radio sound is affected by remote c
43. performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor 78 FILE NO SVM 05027 11 HOW TO REPLACE THE MAIN PARTS 11 1 Indoor Unit Part name Procedures Remarks Front panel How to remove the front panel 1 Stop operation of the air conditioner and turn off its main power supply 2 Pull the air inlet grille toward you to open it and remove the air inlet grille Then remove the 4 screws fixing the front panel 3 Open the horizontal louver and then remove the front panel from the back body by pulling it toward you How to mount the front panel Mount the front panel in position and make sure all hooks are locked Electrical part How to remove the electrical part 1 Remove the front panel with procedure 1 2 Remove the screw holding the electrical part cover 3 Disconnect the 2 connectors 3P for the fan motor and the connector 5P for the louver motor from the P C board assembly Pull out the TC sensor from the sensor holder Remove the screw for the ground connection remove the screw for the electrical part box and remove the screw N i from the LED unit Then remove the LED unit and the electrical part box from the main unit How to mount the electrical part 1 To put back the electrical part box lock it to the upper hook of the back body 2 Tighten the screw on the electrical part box 3 Connect the 3 connectors and arrange the
44. remote control Installation plate outline Center line 14 3 2 Outdoor Unit FILE NO SVM 05027 Detail drawing Back Leg 115 125 A ak Detail drawing Front Leg Kass 5 51 9 9 FT BA O ZE at I 58 28 _ _ _ 7 159 1 R15 48 J J 30 Drain outlet 2436 FAN GUA HINH 530 2 11 x 14 For 28 10 anchor bolt RD COVER PV e Mil den t AM OR SS 2 gt Leen N amp d Y gt U UD 0 E 3 Az a 310 330 Electrical cover 2 Liquid side vA Flare 26 35 Gas side Flare 229 52 For RAS 13NAV E NAV A Flare 212 7 For al RAS 16NAV E NAV A m mm View i rt Installation dimension Service po goo 100 or more MArinet 600 or more em eo I E 100 or more Air outlet 600 or more 4 x 11 x 14 Long holes For 28 210 anchorbolt 15 4 1 Indoor Unit For 13NKV r COLOR INDICATION 4 WIRING DIAGRAM FILE NO SVM 05027
45. to a strong wind A place free of a leakage of combustible gases 2 Insert a flare nut into the pipe and flare the pipe A place which does not block a passage When the outdoor unit is to be installed in an elevated position be sure to secure its feet An allowable length of the connecting pipe is up 15 m An allowable height level is up to 10 m A place where the drain water does not raise any problem Projection margin in flaring A Unit mm Fig 9 3 3 S a CAUTION E Rigid Clutch type 1 Install the outdoor unit without anything blocking Outer dia R410A Conventional the air discharging of copper pipe tool used tool used 2 When the outdoor unit is installed in a place 6 35 0 to 0 5 1 0 to 15 exposed always exposed to strong wind like a coast or on a high storey of a building secure 9 52 0 to 0 5 1 0 to 1 5 the normal fan operation using a duct or a wind 12 70 0 to 0 5 10 to 1 5 shield 3 In particularly windy areas install the unit such Imperial wing nut type as to avoid admission of wind 4 Installation in the following places may result in Outer dia R410A trouble of copper pipe Do not install the unit in such places 6 35 1 5 to 2 0 eA place full of machine oil 9 52 1 5 to 2 0 e A saline place such as the coast e A place full of sulfide gas 12 70 2 0 to 2 5 e A place where high frequency waves are likely to be generated as from audio equipment lt Tightenin
46. value to prevent freezing of indoor heat exchanger 8 1 5 P M V Pulse Modulating Valve Using P M V refrigerant flow of refrigeration cycle is varied for the optimum temperature After the power has been turned on when a serial operation signal is received from indoor at the first time or when PMV alarm is detected and the equip ment is reactivated move the valve once until it hits on the stopper for positioning of the valve In this case ticktack sound may be heard 8 1 6 Louver control 1 Vertical air flow louvers Positions of vertical air flow louvers are automatically controlled according to the operation status AUTO A COOL xt DRY 6 HEAT xX and FAN ONLY Besides positions of vertical air flow louvers can be arbitrarily set by pushing the FIX button Table 8 1 2 13NKV 16NKV Remote Speed Air flow Speed Air flow Control rpm m h rpm m h Operation mode FILE NO SVM 05027 2 Swing If the SWING button is pressed during running operation vertical air flow louvers start swinging When the SWING button is pushed swinging stops 8 1 7 Indoor fan control 1 2 The indoor fan is operated by the stepless speed change motor For air flow level speed of the indoor fan motor is controlled in five steps LOW LOW MED MED and HIGH If AUTO mode is selected the fan motor speed is automatically controlled by the difference between the preset temperature and the
47. 12 times per 1 revolution of compressor The range of supply power frequency to the compressor differs according to the operation status COOL HEAT DRY Table 8 1 1 Compressor revolution range Operation Compressor mode revolution rps 20 to 88 20 to 90 13 to 91 13 to 106 8 1 2 Current release control The outdoor main circuit control section Inverter assembly detects the input current to the outdoor unit If the current value with compressor motor speed instructed from indoor side exceeds the specified value the outdoor main circuit control section controls compressor motor speed by reducing motor speed so that value becomes closest to the command within the limited value 8 1 3 Power factor improvement control Power factor improvement control is performed mainly aiming to reduce the current on much power consump tion of cooling heating operation Controlling starts from the time when input power has reached at a certain point To be concrete IGBT of the power factor improvement circuit is used and the power factor is improved by keeping IGBT on for an arbitrary period to widen electro angle of the input current _ 28 8 1 4 Prevent freezing control The indoor heat exchanger sensor detects refrigerant vapor temperature in COOL DRY operation If the temperature is below the specified value compressor motor speed is reduced so that operation is performed in temperature below the specified
48. 3 C zone Keep zone When TD detect value is 105 C or higher operating motor speed is not changed if raising operation speed Control 4 D zone Slow down zone of motor speed When TD detect value is 108 C or higher operating motor speed is slowly down temperature is changed also I FILE NO SVM 05027 5 Control 5 E zone Nornal down of motor speed When TD detect value is 112 C or higher operating motor speed is down 6 Control 6 F zone Operation stop zone If TD detect value exceeds 117 C during operation stop the operation immediately Then restart the operation when TD detect value becomes 105 C or lower C 117 Operation stop zone Normal down zone me of motor speed _ Release of Slow down of motor speed 108 motor speed ____ Keep zone Motor speed is not changed 105 pt 98 Slow up zone of motor speed _ Normal operation zone Fig 8 2 3 Compressor motor speed control 7 ECONO operation control When the ECO button is pushed ECONO operation is performed by restraining air flow and compressor motor speed The set temperature is changed also 1 The set temperature increased 0 5 C per hour up to 2 C starting from the set temperature when ECONO has been received 2 Indoor air flow is controlled between L and UL The compressor motor speed in control as shown in Fig 8 2 4 Ind
49. 5TK4R7 4 70 5W Louver motor 24BYJ48 19 DG 12V 5 3 Outdoor Unit For 13NAV Parts name SC coil Model name ADR2516 0R6TB FILE NO SVM 05027 15A 0 6mH Noise filter L03 ADR2510 020 T4B 20A 0 15mH DC DC transformer SWT 72 Primary side DC280V Secondary side 7 0 V x 1 12V x 1 17V x2 Reactor CH 57 Z T L 10mH 16A x 2 Outside fan motor ICF 140 43 4 DC140V 43W Fan control relay TS sensor Inverter attached 10 kQ 25 C Discharge temp sensor TD sensor Inverter attached 62 kQ 20 C Outside air temp sensor TO sensor Inverter attached 10 kQ 25 C Heat exchanger temp sensor TE sensor Inverter attached 10 kQ 25 C Terminal block 6P JXO 6B 30A 600 VAC Fuse For protection of switching power source 3 15A AC 250 V For protection of inverter input overcurrent 25A AC 250 V Electrolytic capacitor LLQ2G761KHUBTF 760uF DC 400 V x 3 pieces IGBT GT20J321 20A 600 V Compressor DA89X1F 23F 3 phases 4 poles 1100 W Rectifier D25XB60 4001 20 20A 600V 5 4 Outdoor Unit For 16NAV Parts name SC coil Model name ADR2516 0R6TB FILE NO SVM 05027 15A 0 6mH Noise filter L03 ADR2520 R15TB 20A 0 15mH DC DC transformer SWT 72 Primary side DC280V Secondary side 7 0
50. ALLING IT IN ANOTHER PLACE AGAIN BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT 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 WARNING Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches 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 Before doing the electrical work attach an approved plug to the power supply cord Also make sure the equipment is properly earthed Appliance shall be installed in accordance with national wiring regulations If you detect any damage do not install the unit Contact your TOSHIBA dealer immediately 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 After unpacking the unit examine it carefully for possible damage Do not install in a place that can increase the vibration of the unit Do not install in a place that can amplify t
51. Ee S c RN ol Muffler 0 Strainer 4 way valve CHV 0213 E Muffl Pulse modulating valve at liquid side I SEV16RC3 TD Compressor DA130A1F 24F en Outdoor heat 5 exchanger Split capillary 1 5 x 2000 AI P 1 5 x 2002 Temp measurement oor E 2000 CD Propeller fan Refrigerant amount 0 95 OUTDOOR UNIT NOTE BD Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating Note e The maximum length of the pipe for this air conditioner is 15 m The additional charging of refrigerant is unnecessary because this air conditioner is designed with charge less specification 23 6 2 Operation Data RAS 13NKV E RAS 13NAV E RAS 13NKV A RAS 13NAV A lt Cooling gt Temperature condition C Indoor Outdoor Standard pressure P MPa Heat exchanger pipe temp T1 C T2 C Indoor fan mode FILE NO SVM 05027 Outdoor Compressor fan revolution mode rps 27 19 35 lt Heating gt Temperature condition C Indoor Outdoor 0 8 to 1 0 Standard pressure P MPa 9 to 11 49 to 45 Heat exchanger pipe temp T1 C T2 C High High 77 Outdoor Compressor fan revolution mode rps 20 7 6 2 5 to 2 7 RAS 16NKV E RAS 16NAV E RAS 16NKV A RAS 16NAV A l
52. Handle Lo Pressure gauge Charge hose For R410A only Vacuum pump adapter for counter flow prevention For R410A only Packed valve at gas side Service port Valve core Setting pin Fig 9 3 7 KEEP IMPORTANT A POINTS FOR PIPING WORK 1 Take away dust and moisture Inside of the connecting pipes 2 Tight connection between pipes and unit 3 Evacuate the air in the connecting pipes using VACUUM PUMP N 4 Check gas leak connected points 54 lt Packed valve handling precautions gt Open the valve stem all the way out but do not try to open it beyond the stopper Securely tighten the valve stem cap with torque in the following table 30 to 42 N m 3 0 to 4 2 kgf m Gas side 29 52 mm 16 to 18 1 6 to 1 8 kgf m Liquid side 26 35 mm 50 to 62 N m 5 0 to 6 2 kgf m Liquid side 212 70 mm 9 to 10 N m 0 9 to 1 0 kgf m Hexagonal wrench is required e Service port Fig 9 3 8 9 3 4 Wiring connection 1 Remove the valve cover from the outdoor unit 2 Connect the connecting cable to the terminal as identified with their respective matched numbers on the terminal block of indoor and outdoor unit When connecting the connecting cable to the outdoor unit terminal make a loop as shown in the installation diagram of indoor and outdoor unit to prevent water coming in the outdoor unit
53. Insulate the unused cords conductors from any water coming in the outdoor unit Proceed them so that they do not touch any electrical or metal parts FILE NO SVM 05027 Stripping length of connection cable Terminal block Power cord 123 LN l l 1 E 1 E e AE Y Bulb Y A o A 40 T 40 30 30 Earth line Earth line Connecting cable Power cord Fig 9 3 9 13NKV 16NKV 50 60 Hz 220 240 V Single phase Model Power source Maximum running current 11A Installation fuse 25 rating HO7RN F or 245 IEC66 1 5 mm or more CED e Wrong wiring connection may cause some electrical parts burn out e Be sure to comply with local codes on running the wire from indoor unit to outdoor unit size of wire and wiring method etc e Every wire must be connected firmly e This installation fuse 25A must be used for the power supply line of this air conditioner If incorrect or incomplete wiring is carried out it will cause an ignition or smoke Prepare the power supply for exclusive use with the air conditioner This product can be connected to the mains Connection to fixed wiring A switch which disconnects all poles and has a contact separation of at least 3 mm must be incorporated the fixed wiring E Power cord NOTE Connecting cable e Wire type More than HO7RN F or 245 IEC66
54. N lamp flashes The temperature of the indoor heat exchanger is abnormally low Poor contact of the heat exchanger sensor The connector is disconnected CNO1 3 Heat exchanger sensor main P C board are defective 4 Main P C board is defective Turn the power on after connecting the motor connector Start the operation with the following condition 1 Operation Cooling 2 Airflow High fan 3 Continuous operation 1 Motor does not rotate The key operation is accepted 2 The motor rotates but it vibrates too much 74 1 Poor contact of the motor connector 2 Indoor fan motor is defective FILE NO SVM 05027 lt Sensor characteristic table gt 100 90 _ 80 70 3 3 60 gt 9 50 5 5 40 30 TD Discharge temp sensor TA Room temp sensor TC Heat exchanger temp sensor AO 90665 D TA TC TO TGa TGc TGd TO Outdoor temp sensor TGa Gas side temp sensor TGb Gas side temp sensor 0 10250 Gas side temp sensor Temperature C TGd Gas side temp sensor 75 10 8 3 Indoor unit Other parts Part name Room temp TA sensor Heat exchanger TC sensor FILE NO SVM 05027 Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp Temperature Sensor 207 126 100 TA TC kQ 79 45
55. Outdoor RAS 16NAV E A Cooling capacity 4 62 Cooling capacity range 1 2 5 2 Heating capacity 5 9 Heating capacity range 1 3 7 4 Power supply 1 Ph 50Hz 220 240V 60Hz 220V Electric characteristics Indoor Operation mode Cooling Heating Running current 0 2 0 2 Power consumption 30 30 Outdoor Power factor 65 65 Operation mode Cooling Heating Running current 7 20 7 60 Power consumption 1590 1700 Power factor 96 97 COP Cooling Heating 2 85 3 41 Operation noise Indoor High Cooling Heating dBeA 45 44 Medium Cooling Heating 40 40 34 34 Low Cooling Heating dBeA Outdoor Cooling Heating 51 53 Indoor unit Unit model RAS 16NKV E A Dimension Height 275 Width 790 Depth 218 Net weight 10 Fan motor output 30 Air flow rate Cooling Heating 760 780 Outdoor unit Unit model RAS 16NAV E A Dimension Height 550 Width 780 Depth 270 Net weight 39 Compressor Motor output 1100 Type Twin rotary type with DC inverter variable speed control Model DA130A1F 24F Fan motor output 43 Air flow rate Cooling Heating 2410 2410 Piping connection Type Flare connection Indoor unit Liquid side 26 35
56. SSY INLET GRILLE ASSY BACK BODY ASSY AIR FILTER R AIR FILTER L HORIZONTAL LOUVER DRA IN HOSE CAP DRAIN MOTOR STEPPING REFRIGERATION CY CLE ASSY FOR RAS 13NKV E NKV A REFRIGERATION CY CLE ASSY FOR RAS 16NKV E NKV A PIPE DELIVERY PIPE SUCTION SPRING FOR RAS 16NKV E NKV A PIPE SHIELD HOLDER SENSOR PLATE OF EVA SEAL HOLDER FOR PLATE ASM M BEARING BASE BEARING FAN CROSS FLOW 91 222 222 223 224 225 225 225 225 225 225 226 227 228 231 232 43T39302 43T21327 43T21338 43T39303 43T69421 43785468 43785469 43785470 43785471 43785472 43785475 43762302 43760317 43707303 43782301 43760316 BAND MOTOR L MOTOR FAN FOR RAS 16NKV E NKV A MOTOR FAN FOR RAS 13NKV E NKV A BAND MOTOR R WIRELESS REMOCO OWNER S MANUAL OWNER S MANUAL FOR RAS 13 16NKV E OWNER S MANUAL FOR RAS 13 16NKV E OWNER S MANUAL FOR RAS 13 16NKV E OWNER S MANUAL FOR RAS 13 16NKV E OWNER S MANUAL FOR RAS 13 16NKV E TERMINAL COVER CORD MOTOR LOUVER HOLDER PIPE PLATE INSTALLATION CORD MOTOR FAN FOR RAS 16NKV E NKV A 12 3 Outdoor Unit For 13NAV No No 43T00427 43T00381 43T03329 43T00380 43T09318 43T52310 43T62311 43T41381 43T43355 43T46308 43T46011 43T47331 43747332 43763303 43747008 FRONT CABINET ASSEMBLY BACK CABINET ASSEMBLY BASE UPPER CABINET ASSEMBLY GUARD FAN PACKED VALVE COVER ASSEMBLY ELECTRIC PART COVER COMPRESSOR DA89X1F 23F
57. TO G H FILE SVM 05027 1 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS 13NKV E RAS 13NAV E RAS 13NKV A RAS 13NA V A RAS 16NKV E RAS 16NAV E RAS 16NKV A RAS 16NAV A June 2005 CONTENTS SPECIFICATIONS 1 1 Specifications 1 2 Operation Characteristic Curve 1 3 Capacity Variation Ratio According to Temperature REFRIGERANT R410A 2 1 Safety During Installation Servicing 2 2 Refrigerant Piping Installation 2 3 Tools 2 4 Recharging of Refrigerant 2 5 Brazing of Pipes CONSTRUCTION VIEWS 3 1 Indoor Unit 3 2 Outdoor Unit WIRING DIAGRAM 4 1 Indoor Unit For 13NKV 4 2 Indoor Unit For 16NKV 4 3 Outdoor Unit SPECIFICATION OF ELECTRICAL PARTS 5 1 Indoor Unit For 13NKV 5 2 Indoor Unit For 16NKV 5 3 Outdoor Unit For 13NAV 5 4 Outdoor Unit For 16NAV REFRIGERANT CYCLE DIAGRAM 6 1 Refrigerant Cycle Diagram 6 2 Operation Data CONTROL BLOCK DIAGRAM 7 1 Indoor Unit 7 2 Outdoor Unit Inverter Assembly OPERATION DESCRIPTION 8 1 Outlined of Air Conditioner Control 8 2 Description of Operation Circuit 8 3 Temporary Operation 8 4 Auto Restart Function 8 5 Filter Check Lamp 8 6 Remote Control and its Functions INSTALLATION PROCEDURE 9 1 Safety Cautions 9 2 Indoor Unit 9 3 Outdoor Unit FILE NO SVM 05027 10 11 12 HOW TO DIAGNOSE THE TROUBLE 10 1 First Confirmation 10 2 Primary Judgment 10 3 Judgment by Flashing LED of Indoor Un
58. V x1 12V x 1 17V x 2 Reactor CH 57 Z T L 10mH 16A x 2 Outside fan motor ICF 140 43 4 DC140 V 43 W Suction temp sensor TS sensor Inverter attached 10 25 Discharge temp sensor TD sensor Inverter attached 62 kQ 20 C Outside air temp sensor TO sensor Inverter attached 10 25 Heat temp sensor TE sensor Inverter attached 10 25 Terminal block 6 JXO 6B 30A 600 VAC Fuse For protection of switching power source 3 15A AC 250 V For protection of inverter input overcurrent 25A AC 250 V Electrolytic capacitor LLQ2G761KHUBTF 760uF DC 400 V x 3 pieces IGBT GT20J321 20A 600 V Compressor DA89X1F 23F 3 phases 4 poles 1100 W Rectifier D25XB60 4001 20A 600 V FILE NO SVM 05027 6 REFRIGERANT CYCLE DIAGRAM 6 1 Refrigerant Cycle Diagram RAS 13NKV E RAS 13NAV E RAS 13NKV A RAS 13NAV A INDOOR UNIT H Temp measurement Indoor heat exchanger SE zel 1095 55 or Ce P Pressure measurement da Deoxidized copper pipe 2 8 gt 15 Gauge attaching port Outer dia 6 35 mm Vacuum pump connecting port Thickness 0 8 mm ead 8 ii Sectional shape lt 5 2 D
59. Y HEAT FAN ONLY Infrared Rays Remote Control Operation START STOP Operation Mode Selection Temperature Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver Auto Swing Louver Direction Setting EG Filter Reset Operation Display Timer Display Filter Sign Display PRE DEF Sign Display Indoor Fan Motor Louver Motor Louver Motor FILE NO SVM 05027 7 2 Outdoor Unit Inverter Assembly JosseJduio HUN O4JUOD OIN NOW esind 20 Josues JeueAu u uno 19A 10 0W ue4 ov Josues JoopinO J l AU jueuno JOAO Josuos jueuno JSAO 10 Weng JOAO yno ayes uonisod 10104 10 I uonisod 10104 LINN HOOGLNO NIW d ov 208095 Juan ZHIN9L UOOIHOD 10128 42019 JOMOd JOOPU euBis 043009 dwar eBueuosiq 041009 A Wd 1ndino O4JUOD 01994109 10108 U IH 040009 UEL JOOPINO 99 p HDI es
60. actor FILE NO SVM 05027 Part name Procedures Remarks Fan motor 1 Perform work of item 1 of D 0 Fan motor 2 Remove the flange nut fixing the fan motor and the propeller fan Propeller fan e Flange nut is loosened by turning clockwise To tighten the flange nut turn counterclock wise 3 Remove the propeller fan 4 Disconnect the connector for fan motor from the inverter 5 Remove the fixing screws 3 pcs holding by hand so that the fan motor does not fall Compressor 1 Perform work of item 1 of D and 2 Extract refrigerant gas 3 Remove the partition board ST1T 4 x 102 2 pcs 4 Remove the sound insulation material 5 Remove the terminal cover of the compressor and disconnect lead wire of the Ke compressor thermo and the compressor from kk the terminal T 6 Remove pipe connected to the compressor with Partition d i board clamping a burner p plate 7 Remove the fixing screw of the bottom plate and heat ST1T 4 x 102 2 pc 8 Remove the fixing screw of the bottom plate and valve clamping plate ST1T 4 x 104 2 pcs 9 Pull upward the refrigeration cycle 10 Remove the nut fixing the compressor to the bottom plate j Compressor thermo m Compressor Reactor 1 Perform work of item 1 of D and 3 2 Remove lead wires clung in holder on the Je partition board ISR 3 Remove the screw fixing the reactor
61. allation plate CED e This appliance can be connected to the mains in either of the following two ways 1 Connection to fixed wiring A switch or circuit breake which disconnects all poles and has a contact separation of at least 3 mm must be incorporate in the fixed horizontal directions wiring An approved circuit breaker or boft N switches must used BET 2 Connection with power supply plug Projection Attach power supply plug with power cord and gt O gt 15 mm or less plug it into wall outlet An approved power supply cord and plug must be used J A Fig 9 2 4 NOTE e Perform wiring works so as to allow a generous 5 mm dia hole wiring capacity tg uo 2 Mounting uwa T screw 24 x 252 anchor local parts Fig 9 2 5 Failure to firmly install the unit may result in personal injury and property damage if the unit falls e In case of block brick concrete or similar type walls make 5 mm dia holes in the wall e Insert clip anchors for appropriate mounting screws NOTE e Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it _ 49 9 2 4 Wiring connection lt How to connect the connecting cable gt Wiring of the connecting cable can be carried out without removing of the front panel 1 Remove the air inlet grille Open the air inlet grille upward and pul
62. and current release operation e Over current detection and prevention operation to IGBT module Compressor stop function e 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 e Transferring of operation information Serial signal from outdoor unit to indoor unit e Detection of outdoor temperature and operation revolution control e Defrost control in heating operation Temp measurement by outdoor heat exchanger and control for 4 way valve and outdoor fan SOE 3 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 remote control Compressor revolution command signal defined by indoor temperature and set tem perature Correction along with variation of room temperature and correction of indoor heat exchanger temperature are added For these two types of signals Operation mode and Compressor revolution 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 Temperature of indoor heat exchanger by indoor heat exchanger sensor Minimum revolution control Contents of operation command signal Serial signal from outd
63. beep is heard If no receiving sound is heard from the indoor unit push the button twice Mode select button MODE Push this button to select a mode Each time you push the button a mode is selected in a sequence that goes from A Auto changeover control zx Cool Dry Heat Fan only and back to A A receiving beep is heard Temperature button TEMP amp The set temperature is increased up to 30 C War The set temperature is dropped down to 17 C A receiving beep is heard Fan speed button FAN Push this button to select fan speed When you select AUTO the fan speed is automatically adjusted according to the room temperature You can also manually select the desired fan speed from among five settings LOW LOW Za MED MED HIGH A receiving beep is heard Auto louver button SWING Push this button to swing the louver A receiving beep is heard Push the button again to stop the louver swinging A receiving beep is heard Set louver button FIX Push this button to adjust the air flow direction A receiving beep is heard On timer button ON Push this button to set the ON timer Off timer button OFF Push this button to set the OFF timer Reserve button SET Push this button to reserve setting of time ON timer or OFF timer A receiving beep is heard Cancel button CLR Push this button to cancel ON timer and OFF t
64. connector of the infrared receiver Check the transformer and the power supply circuit of the rated voltage DC12V Check the voltage at the white lead of the louver motor Check the transformer and the power supply circuit of the rated voltage LEI AC 220 240V Check the voltage at the No 1 pin on CN10 connector and CN24 Check the FO1 Refer to the service data for the detailed failure diagnosis 16 FILE NO SVM 05027 4 2 Indoor Unit For 16NKV r COLOR INDICATIONS BRW BROWN Toce PP INDOOR OUTDOOR UNIT UNIT WHI WHITE BLOCK YEL YELLOW BLU BLUE BLK BLACK GRY GRAY PNK PINK ORN ORANGE BLK GRN amp YEL GREEN amp YELLOW GREEN CN24 BLU BLK BLK HEAT EXCHANGER SENSOR TC WED F01 BLK T3 15A 250VAC THERMO SENSOR T L LINE DC5V o DC12Vo FILTER RO5 DB01 C03 Ka e R04 CIRCUIT POWER SUPPLY MAIN P C BOARD MCC 867or MCC 5014 CN08 HA JEM A Simple Check for Failure Diagnosis Check Item Diagnosis Result Check to see if the OPERATION indicator goes on OPERATION and off when the main switch or breaker is turned on INDICATOR Check the primary and secondary voltag
65. 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 e Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material C e When bending a pipe carefully do it not to crush it BI 9 2 6 Indoor unit fixing 2 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 3 Hook here FILE NO SVM 05027 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 IL E B Extension drain hose Shield pipe 4 Drain hose Inside the room Fig 9 2 20 1 Installation plate Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping Fig 9 2 17 This air conditioner has the st
66. d to the specified positions FILE NO SVM 05027 Remarks Take out part of lead wire Coil inserting position lt position Coil inserting Positioning position hole a Minus screwdriver Hooking claw Part name Replacement of temperature sensor for servicing only Common service parts of sensor TO TS TE TD These are parts for servicing sensors Please check that the accessories shown in the right table are packed Procedures 1 Cutthe sensor 100 mm longer than old one Cut the protective tube after pulling out it 200 mm Move the protective tube toward the thermal sensor side and tear the tip of lead wire in two then strip the covering part Pass the stripped part through the thermal constringent tube Cut the old sensor 100 mm length on the connector side and recycle that connector Tear the lead wire in two on the connector side and strip and covering part Twist the leads on the connector and sensor sides and solder them Move the thermal constringent tubes toward the soldered parts and heat them with the dryer and constring them Wind the attached color tape round the both terminals of the protective tube when colored protective tube is used 10 Fix the sensor again NOTES 1 Store the joint part of the sensor and the connector in the electric parts box 2 Never joint them near the thermal sensor part Otherwise it would cause insulation
67. d signal sent from the indoor unit Room temp Set temp NOTE 1 Middle motor speed between L and SUL Fig 8 2 6 Setting of air flow 8 2 3 Heating operation Transferring of heat operation signal from indoor unit to outdoor unit starts The indoor fan motor operates by the room temperature when selecting AUTO of FAN as shown in Fig 8 2 7 and operates with a set air flow when selecting LOW to HIGH However to prevent cold draft revolution speed of the fan is restricted by indoor heat exchanger when air flow is AUTO Fig 8 2 8 and starting of FAN Manual FILE NO SVM 05027 Basic control Set 0 LOW temp 0 5 24 1 5 2 S _ ET 5 gt 5 0 5 5 FAN AUTO HIGH 1 2 Approximate revolution speed of M and L to linear accordingly to temperature Fig 8 2 7 Setting of air flow Cold draft preventing control The upper limit of fan revolution speed is shown below Approximate revolution speed of HIGH and SUL linear by Tc SUL NOTE 1 Stop Starting N of FA Manual Fig 8 2 8 Cold draft preventing control NOTES 1 Stops for 2 minutes after thermostat OFF 2 24 C when the set temp is 24 C or more Set temp when the set temp is below 24 C 8 SUL Super ultra low 34 In starting and in stability In starting In stability e Until 12 minutes passed after opera
68. d when 1 Check outdoor temp sensors LIZI disconnection or short error is detected TE TS circuit of outdoor temp 2 Check P C board sensor 1177 Disconnection or short All off Displayed when 1 Check discharge temp sensor TD I U circuit of discharge temp error is detected 2 Check PC board sensor 1171 Outdoor fan drive system All off Displayed when Position detect error over current UT error error is detected protective operation of outdoor fan drive system fan lock etc Replace P C board or fan motor Not Outdoor heat exchanger Operation 1 Check outdoor heat exchanger displayed LIZI temp sensor error continues temp sensor TE 2 Check P C board Ondoor Compressor drive output All off Displayed when When 20 seconds passed after PC IL error Compressor error error is detected startup position detect circuit error board lock missing etc occurred Replace compressor Break down F17 Others 1 771 Return serial signal has Operation Flashes when 1 Repeat Start and Stop with LI including LI been sent when operation continues trouble is interval of approx 10 to 40 compres started but it is not sent detected on minutes Code is not displayed sor from halfway return serial during operation 1 Compressor thermo signal and Supply gas Check also gas leak operation normal status 2 Unit operates normally during Gas shortage when signal is check
69. dhesive strength do not use it for refrigerant pipes 12 2 3 4 Characteristics required for flux e Activated temperature of flux coincides with the brazing temperature Due to a wide effective temperature range flux is hard to carbonize e ltis easy to remove slag after brazing e The corrosive action to the treated metal and brazing filler is minimum e excels in coating performance and is harmless to the human body As the flux works in a complicated manner as described above it is necessary to select an adequate type of flux according to the type and shape of treated metal type of brazing filler and brazing method etc Types of flux e Noncorrosive flux Generally it is a compound of borax and boric acid It is effective in case where the brazing temperature is higher than 800 C e Activated flux Most of fluxes generally used for silver brazing are this type It features an increased oxide film removing capability due to the addition of compounds such as potassium fluoride potassium chloride and sodium fluoride to the borax boric acid compound Piping materials for brazing and used brazing filler flux Piping Used brazing Used material filler flux Copper Copper Phosphor copper Do not use Copper Iron Silver Paste flux Iron Iron Silver Vapor flux CD Do not enter flux into the refrigeration cycle 2 When chlorine contained in the flux remains wit
70. e fan of the indoor unit operates at higher consecutive air flow level Fan speed on the display of remote control does not change 4 Changing of louver positing If the room temperature is higher than setting temperature by 3 5 or more the louver is automatically set to the maximum air flow position If it is not position of louver is not change When room temperature is reach to setting temperature The louver moves back to set position QUIET operation control When the QUIET button is pushed the fan is restricted the revolution speed at L level until the QUIET button is pushed once again cancel QUIET operation Remarks QUIET operation is appropriate to work with less cooling load condition Because of the fan speed L may cause not enough the cooling capacity 8 2 2 DRY operation The Remote Control MODE Button is Set to the DRY Position Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing 6 button e Dry operation signal is transmitted to outdoor unit e Cooling operation giving priority to dehumidifying which restrains the indoor fan speed and compressor motor speed is performed e The indoor fan motor operates as shown in Fig 8 2 6 Fan speed is AUTO only e The outdoor fan motor operates as described in Table 8 1 3 and the compressor motor speed according to the operation comman
71. e of the transformer Check the power supply voltage between Q and Refer to the name plate EI TERMINAL Check the primary and secondary voltage of the BLOCK transformer Check the fluctuating voltage between 2 and 3 15 60VDC fi FUSE Check to see if the fuse blows out 3 15A Check the R04 of the varistor Check the voltage at the No 4 pin on CN13 connector DC5V of the infrared receiver Check the transformer and the power supply circuit of the rated voltage f Check the voltage at the white lead of the louver motor DC12V Check the transformer and the power supply circuit of the rated voltage B Check the voltage at the No 1 pin on CN10 DC325V connector Check the DB01 R05 and DC310 340V Refer to the service data for the detailed failure diagnosis 17 FILE NO SVM 05027 u s IHM YOLOVaY ped YOSSHYdINOD 0029 irozo Wi 26 OL 99 Toen 6025 5020 ved 8 d erzu e 600S 99W guvog dd 09 505 0050 d fash 244 God Tomat Old PLO ETO CIO TO9N9 OO9NI eran Gro d FO si gt 01 lar INITIELE EN aX 55 2 SA s ZH09 0S yun A0vZ 0ZZ IOODUI Ajddns 1 OL HOLON NVA HUN 100pino c r 18 FILE NO SVM
72. eaje1 ndu uonoun SISSUIU S MIN 8 O d 21820 En ete INVH9VIG 9019 HALNdNOI OHIIN Je Josu s dui 8 yeay Josues dui91 vonons Josues duet JOOPINO Josues duu 1 eBieuosiq K gt HUN JOPPUI ZH 09 05 066 1 LINN HOOONI 104 FILE NO SVM 05027 8 OPERATION DESCRIPTION 8 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner The capacity proportional control compressor which can change the motor speed is mounted The indoor unit motor drive circuit is mounted to the indoor unit The compressor and the inverter to control outdoor unit motor are mounted to the outdoor unit The entire air conditioner is mainly controlled by the indoor unit controller The indoor unit controller drives the indoor fan motor based upon command sent from the remote control and transfers the operation command to the outdoor unit controller The outdoor unit controller receives operation command from the indoor unit side and controls the outdoor fan and the pulse modulating valve P M V Besides detecting revolution position of the compressor 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
73. eal the container with an airtight cap or any other cover 1 Flare Processing Procedures and Precautions a Cutting the Pipe By means of a pipe cutter slowly cut the pipe so that it is not deformed b Removing Burrs and Chips If the flared section has chips or burrs refrigerant leakage may occur Carefully remove all burrs and clean the cut surface before installation c Insertion of Flare Nut d Flare Processing Make certain that a clamp bar and copper pipe have been cleaned By means of the clamp bar perform the flare processing correctly Use either a flare tool for R410A or conventional flare tool Flare processing dimensions differ according to the type of flare tool When using a conventional flare tool be sure to secure dimension A by using a gauge for size adjustment Fig 2 2 1 Flare processing dimensions Nominal diameter Outer diameter mm Thickness mm FILE NO SVM 05027 Table 2 2 3 Dimensions related to flare processing for R410A A mm Flare tool for R410A clutch type Conventional flare tool Clutch type 1 0 to 1 5 Wing nut type 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 Nominal diameter 1 0 to 1 5 Table 2 2 4 Dimensions related to flare processing for R22 Outer diameter mm Thickness mm A mm 2 0 to 2 5 Flare tool for R410A clutch type Conventional flare tool Clutch type
74. ed by different speed indoor unit operates at higher air flow level than After 30 minutes passed the different value of normal air flow AUTO normal air flow AUTO is room temperature and set temperature is shown in Fig 8 2 7 Because of the difference separated zone again by more different value between room temperature and setting than before Then compressor motor speed ag EE EES after 30 minute passed is lower than before by 3 Changing of air flow Fan setting One of 5 levels When the Hi POWER is started the fan of the indoor unit operates at higher consecutive air flow level Fan speed on the display of remote control does not change the same different value of room temperature and set temperature 36 FILE NO SVM 05027 9 QUIET operation control 8 3 Temporary Operation When the QUIET button is pushed the fan is restricted the revolution speed at L level until the QUIET button is pushed once again cancel QUIET operation Remarks QUIET operation is appropriate to work with less heating load condition Because of the fan speed L may cause not enough the heating capacity e Temporary Auto operation existence of Auto Restart and Temporary Cooling operation can be set by the RESET button of the indoor controller 8 2 4 Automatic operation 1 As shown in Fig 8 2 12 the operation mode COOL DRY HEAT is selected according to the Preset temperature and
75. ed with asterisk is packaged with the outdoor unit 9 1 4 Installation Servicing Tools lt Changes in the product and components gt 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 e 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 FILE NO SVM 05027 New tools for R410A Applicable to R22 model Changes Gauge manifold 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 hight 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 co
76. eoxidized copper pipe of heat lt Outer dia 9 52 m Thickness 0 8 mm Y mu nas ue cvercc PL eM ol Muffler 0 Strainer 4 way valve CHV 0213 E Muffl Pulse modulating valve at liquid side I SEV16RC3 lt TD Compressor DA89X1F 23F en Outdoor heat 5 exchanger Split capillary 1 5 x 2000 AI P 1 5 x 2002 Temp measurement oor E 2000 Co Propeller fan Refrigerant amount 0 8 OUTDOOR UNIT NOTE BD Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating Note e The maximum length of the pipe for this air conditioner is 15 m The additional charging of refrigerant is unnecessary because this air conditioner is designed with charge less specification 22 FILE NO SVM 05027 RAS 16NKV E RAS 16NAV E RAS 16NKV A RAS 16NAV A INDOOR UNIT H Temp measurement Indoor heat exchanger SE zel 1095 55 or Ce P Pressure measurement da Deoxidized copper pipe 2 8 gt 15 Gauge attaching port Outer dia 6 35 mm Vacuum pump connecting port Thickness 0 8 mm ead 8 ii Sectional shape lt 5 2 Deoxidized copper pipe of heat lt Outer dia 12 7 Thickness 0 8 mm Y mu nas ue cwn PL
77. er circuit failure 1 08 Replace the P C board V 0 V Replace the control P C board 65 Replace the fan motor Replace connecting the cable or power cord thermal fuse and terminal block FILE NO SVM 05027 For 16NKV lt Preliminary check gt 1 Is it possible to detect the power supply voltage 200 240V between 1 and 2 on the terminal block 2 Does the indoor fan motor operate in cooling operation In heating operation the indoor fan motor does not operate for Operation approximately 5 minutes after it is turned on to prevent a cold air from blowing in Check item Conceivable principle cause Turn off power supply once and turn it on again Measure Item by symptoms Does compressor continue to operate Is it possible to detect DC 1V or more between and Oof motor connector CN10 Replace indoor fan motor YES Start to operate indoor unit in cooling operation at airflow level LOW Is it possible to detect DC Does indoor NO 310 340V between NO fan operate DG O of motor YES connector CN10 Turn off indoor unit and remove connector from motor Then press Motor connection condition 6 button Is it possible to detect 15V NO on remote control to between and DO of stop blinking lamp on motor connector CN10 indoor unit Change airflow level to High
78. for more The unit is in operation The green lamp is on than three seconds 1 The unit stops operating The green lamp is turned off After approx three seconds The unit beeps three times If the unit is required to operate at this time push RESET button once more or use the remote control to turn it on e While this function is being set if the unit is in e While the filter check lamp is on the operation the orange lamp is on RESET button has the function of filter e This function can not be set if the timer operation reset button has been selected e When the unit is turned on by this function the louver will not swing even though it was swinging automatically before shutting down _ 38 FILE NO SVM 05027 8 4 2 How to cancel auto restart function To cancel auto restart function proceed as follows Repeat the setting prodedure the unit receives the signal and beeps three times The unit will be required to be turned on with the remote control after the main power supply is turned off When the unit is on standby Not operating Operation Motions Push RESET button for more The unit is on standby than three seconds The unit starts to operate The orange lamp is on After approx three seconds The unit beeps three times The lamp changes from and continues to operate orange to green If the unit is not required to operate at this time push RESET
79. g connection gt EE Z Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers Then tighten the nut with a spanner and torque wrench as shown in the figure Half union t Flare nut Externally Internally threaded side Z threaded side Use a wrench to secure Use a torque wrench to tighten Fig 9 3 4 Do not apply excess torque Otherwise the nut may crack depending on the conditions 53 FILE NO SVM 05027 Unit N m 9 3 3 Evacuating Outer dia of copper pipe Tightening torque 26 35 mm 16 to 18 1 6 to 1 8 kgf m 9 52 mm 30 to 42 3 0 to 4 2 kgf m 212 70 mm 50 to 62 5 0 to 6 2 kgf m Tightening torque of flare pipe connections The operating pressure of R410A is higher than that of R22 Approx 1 6 times It is therefore necessary to firmly tighten the flare pipe connecting sections which connect the indoor and outdoor units up to the specified tightening torque Incorrect connections may cause not only a gas leakage but also damage to the refrigerant cycle Flare at indoor unit side Flare at outdoor unit side Fig 9 3 5 Shaping pipes 1 How to shape the pipes Shape the pipes along the incused line on the outdoor unit 2 How to fit position of the pipes Put the edges of the pipes to the place with a distance of 85 mm from the incused line Incused line
80. he noise level of the unit or where noise and discharged air might disturb neighbors To avoid personal injury be careful when handling parts with sharp edges Please read this installation manual carefully before installing the unit It contains further important instructions for proper installation 43 9 1 1 Installation Diagram of Indoor and Outdoor Units Hook 65 mm or more Installation plate Shield pipe Sasa Zeolite plus filter Bio enzyme amp Gingko filte 8 Pan head wood screw Wireless remote control 4 Remote control holder Before installing the wireless remote control With the remote control cover open load the batteries supplied correctly observing their polarity Wireless remote control Vinyl tape Apply after carrying out a drainage test 600 mm or more Extension drain hose Not available provided by installer As show in the figure hang power cord and connecting cable downward and take out it along piping connection port 44 FILE NO SVM 05027 For the rear left and left piping Insert the cushion between the indoor unit and wall and tilt the indoor unit for better operation Do not allow the drain hose to get slack Cut the piping hole sloped slightly K Make sure to run the drain hose sloped downward The auxiliary piping can be connected the left rear left rear right right bottom righ
81. hin the pipe the lubricating oil deteriorates Therefore use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water Remove the flux after brazing FILE NO SVM 05027 2 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring in the pipe interior during brazing it is effective to proceed with brazing while letting dry Nitrogen gas flow Never use gas other than Nitrogen gas 1 Brazing method to prevent oxidation D Attach a reducing valve and a flow meter to the Nitrogen gas cylinder 2 Use a copper pipe to direct the piping material and attach a flow meter to the cylinder 3 Apply a seal into the clearance between the piping material and inserted copper pipe for Nitrogen in order to prevent backflow of the Nitrogen gas 4 When the Nitrogen gas is flowing be sure to keep the piping end open 5 Adjust the flow rate of Nitrogen gas so that it is lower than 0 05 m Hr or 0 02 Mpa 0 2 kgf cm by means of the reducing valve After performing the steps above keep the Nitrogen gas flowing until the pipe cools down to a certain extent temperature at which pipes are touchable with hands Remove the flux completely after brazing
82. imer A receiving beep is heard Sleep timer button SLEEP Push this button to set the OFF timer 1 3 5 or 9 hours A receiving beep is heard High power button Hi POWER Push this button to start the high power operation A receiving beep is heard 40 FILE NO SVM 05027 ECO timer button ECO Push this button to start the ECO operation A receiving been is heard Quiet button QUIET Push this button to start the quiet operation A receiving been is heard Comfort sleep button COMFORT SLEET Push this button to start the comfort sleep operation OFF timer neccessary to set together 1 3 5 or 9 hours A receiving been is heard PRESET button Push this button to operate the air conditioner according to settings memorized A receiving been is heard Or push the button for more than 4 seconds to memorize the setting indicated on the remote control and mark is indicated Automatic operation button AUTO Push this button to operate the air conditioner automatically A receiving beep is heard TOSHIBA A AUTOA ZOSO H HA o CHK AM Hie C RESETe CLOCK 8 6 2 Names and functions of indications on remote contol Display All indications except for clock time indication are indicated by push the button Transmission mark FILE NO SVM 05027 This transmission mark A indicates when the remote control transmits
83. it 10 4 Self Diagnosis by Remote Control Check Code 10 5 Judgment of Trouble by Every Symptom 10 6 Check Code 1C Miswiring in indoor outdoor units and 1E 10 7 How to Diagnose Trouble in Outdoor Unit 10 8 How to Check Simply the Main Parts 10 9 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad HOW TO REPLACE THE MAIN PARTS 11 1 Indoor Unit 11 2 Microcomputer 11 3 Outdoor Unit EXPLODED VIEWS AND PARTS LIST 12 1 Indoor Unit E Parts Assy 12 2 Indoor Unit 12 3 Outdoor Unit For 13NAV 12 4 Outdoor Unit For 16NAV 12 5 Outdoor Unit E Parts Assy FILE NO SVM 05027 FILE NO SVM 05027 1 SPECIFICATIONS 1 1 Specifications Unit model Indoor RAS 13NKV E A Outdoor RAS 13NAV E A Cooling capacity 3 5 Cooling capacity range 1 1 4 0 Heating capacity 4 2 Heating capacity range 1 1 5 8 Power supply 220 240V 1Ph 50 60Hz Electric characteristics Indoor Operation mode Cooling Heating Running current 0 15 0 15 Power consumption 30 30 Outdoor Power factor 87 87 Operation mode Cooling Heating Running current 4 70 4 97 Power consumption 1040 1100 Power factor 96 96 Cooling Heating 3 27 3 72 Operation noise Indoor High Cooling Heating dBe A 39 39 Medium Cooling Heating 33 34 Low Cooling Heating dBe A 26 28
84. l it toward you Remove the terminal cover and cord clamp cords into the pipe hole on the wall Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 15 cm from the front Insert the connecting cable fully into the terminal block and secure it tightly with screws Tightening torque 1 2 N m 0 12 kgf m Secure the connecting cable with the cord clamp Fix the terminal cover rear plate bushing and air inlet grille on the indoor unit Insert the connecting cable according to the local FILE NO SVM 05027 9 2 5 Piping and drain hose installation lt Piping and Drain Hose Forming gt Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material Rear right m rat wanpu ener Jm im Bim tn mm 23 55 Riom w A Fig 9 2 8 1 Die cutting Front panel slit e sure to refer to the wiring system diagram labeled inside the front panel e Check local electrical cords and also any specific wiring instructions or limitations Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or right side of the front panel for the bottom left or right connection with a pair of nippers 2 Changing drain hose For left connection bottom leftward connection and Cord
85. low 1 Never charge refrigerant exceeding the specified amount 2 If the specified amount of refrigerant cannot be charged charge refrigerant bit by bit in COOL mode 8 Do not carry out additional charging When additional charging is carried out if refrigerant leaks the refrigerant composition changes in the refrigeration cycle that is characteristics of the air conditioner changes refrigerant exceeding the specified amount is charged and working pressure in the refrigeration cycle becomes abnormally high pressure and may cause a rupture or personal injury INDOOR unit TZ Refrigerant cylinder With siphon pipe Open Close valve for charging C Electronic balance for refrigerant charging Liquid side OUTDOOR unit Service port Fig 2 4 1 Configuration of refrigerant charging 11 FILE NO SVM 05027 Be sure to make setting so that liquid can be charged 2 When using a cylinder equipped with a siphon liquid can be charged without turning it upside down Itis necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant Accordingly when charging refrigerant from the refrigerant cylinder to the equipment charge it turning the cylinder upside down if cylinder is not equipped with siphon Cylinder with siphon Cylinder without siphon Gauge manifold Gauge manifold OUTDOOR unit OUTDOOR unit
86. ly 10 1 2 Confirmation of power voltage Confirm that power voltage is AC 220 240 V 10 If power voltage is not in this range the unit may not operate normally 57 FILE NO SVM 05027 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 described 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 control ling and maintaining of air conditioner Operation of air conditioner When power breaker is turned ON the operation lamp Green of the indoor unit flashes Table 10 1 1 Description The OPERATION lamp of the indoor unit flashes when power source is turned on If START STOP 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 m
87. mmon 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 X Exclusive for HFC refrigerant 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 corresponding to the charge hose s port size Also the charge port and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch 47 FILE NO SVM 05027 9 2 Indoor Unit 9 2 2 Cutting a hole and mounting installation plate 9 2 1 Installation place lt Cutting a hole gt e place which provides the spaces around the indoor unit as shown in the above diagram When installing the refrigerant pipes from the rear e A place where there is no obstacle near the air inlet and outlet
88. nce it dose not operate until the power will be turned on again To item of compressor 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 Refer to the chart in 10 6 Miswiring of connecting wires of indoor outdoor units Clogging of pipe and coming off TC sensor 69 FILE NO SVM 05027 10 6 Check Code 1 Miswiring in indoor outdoor units and 1E lt Check procedure gt 1 Gas leakage disconnection of TS TC Discharge temp error gas leakage Check code 03 1E sensors Check code 02 1 lt Valve drive check Is coil of the pulse modulation valve P M V correctly set YES N gt 9 Set it correctly lt Is connector of coil connected to inverter Set it correctly YES 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 NOTE After all the operations stopped by the remote control the power keeps being supplied to outdoor unit for approx 3 minutes If operating the air conditioner by remote control again just after all the operations stopped by the remote control positioning of the valve is
89. nd their interchangeability R410A air conditioner Conventional air installation conditioner installation Used tool Existence of Whether Whether new equipment new equipment conventional can be used with for R410A equipment can conventional refrigerant be used Flare tool Pipe flaring Copper pipe gauge Flaring by for adjusting projection conventional flare margin tool Torque wrench Connection of For 12 70 flare nut Gauge manifold Evacuating refrigerant charge Charge hose run check etc Vacuum pump adapter Vacuum evacuating Electronic balance for Refrigerant charge refrigerant charging 9 Refrigerant cylinder Refrigerant charge Leakage detector Gas leakage check Charging cylinder Refrigerant charge Note 1 When flaring is carried out for R410A using the conventional flare tools adjustment of projection margin is necessary For this adjustment a copper pipe gauge etc are necessary Note 2 Charging cylinder for R410A is being currently developed General tools Conventional tools can be used In addition to the above exclusive tools the following equipments which serve also for R22 are necessary as the general tools 1 Vacuum pump 4 Reamer 9 Hole core drill 265 Use vacuum pump by 5 Pipe bender 10 Hexagon wrench attaching vacuum pump adapter 6 Level Opposite side 5 mm 2 Torq
90. o white and black lead wires of terminal board YES To item of Power is not turned on 64 3 Only the indoor fan does not operate For 13NKV lt Check procedure gt Shut off the power supply once Turn the power supply Does the fan stop in NO no operating status YES Start the operation with low fan setting in cool operation NO Does the fan rotate YES Change the setting of cooling to high fan Does the fan speed NO become higher YES Normal Control P C board is defective Does AC 120 V lead of fan motor YES or higher voltage apply to between red and black Shut off the power supply Does the cross flow fan rotate normally YES Turn on the power supply Operation stops Is the rotation signal DC 5 output between 2 gray lead wire and 3 brown lead wire of the motor connector CN11 when rotating the cross flow fan by hand in no operating status 1 pulse one turn Does connecting terminal connecting cable or power supply cord completely Does not found the short wire about connecting cable and power cord NO Repair the bearing of the fan FILE NO SVM 05027 Replace the P C board YES Thermal fuse operated due to prevent temperature rising cause of incompleted connecting Motor control circuit failure IC05 D38 or 12 V pow
91. of shock voltage Overload by short circuit of the parts Remove the connector for the motor and turn the power on If the OPERATION lamp flashes 0 5 sec ON 0 5 sec OFF when the power turning on the checking points described as 1 3 of right column are not necessary to perform Voltage check 1 Between TP1 220 240 AC 2 Between and of 310 to 340V DC 15V 12V 5 V and TP2 GND GND GND 3 Between and 4 Between and 5 Between and AC power cord is defective Poor contact of the terminal plate Miss wiring of the power relay Capacitor C01 is defective Line filter LO1 is defective Resistor R05 is defective Diode 0 01 is defective Q14 ICO8 TO1 are defective IC01 D16 T01 202 are defective 1C01 IC11 T01 are defective Start the operation with the system which the time of the restart delay timer is shortened 1 All indicators light for 3 sec 2 Indicators do not indicate normally after approximate 3 sec Defective indicator or poor housing assembly CN13 Make the operation status by pressing once the 5 button 1 The time of the restart delay timer is shortened 2 Cool operation 3 Air volume AUTO 4 Make the setting temperature lower enough than room temperature 5 Continuous operation 1 Compressor does not operate 2 OPERATIO
92. ols are also required Accordingly special tools are required for the new refrigerant R410A as shown below For connecting pipes use new and clean piping materials with high pressure 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 CAUTION To Disconnect the Appliance from the Main Power Supply This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm The installation fuse 25A must be used for the power supply line of this air conditioner 42 FILE NO SVM 05027 FOR USE BY QUALIFIED PERSONS ONLY 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 DISCONNECTED 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 INST
93. ontrol when a signal is transmitted at distance of 5 cm from radio P C board is defective Avoid direct Keep indoor unit Replace Replace Normal sunlight away from P C board batteries operation thyristor fluorescent light Note After replacing batteries press the RESET button with a tip of a pencil 68 FILE NO SVM 05027 10 5 2 Wiring Failure Interconnecting and serial signal wire 1 Outdoor unit does not operate 1 Is the voltage between indoor terminal block 2 and varied Confirm that transmission from indoor to outdoor is correctly performed based on the following diagram NOTE e Measurement should be performed 2 minutes and 30 seconds after starting of the operation e Be sure to prepare a diode for judgment Terminal block on indoor side Red 5277G e S5277G or equivalent G or J type Diode with rated voltage of 400 V White or more is acceptable Tester Terminal block Normal time Voltage swings between DC15 V and 60 V 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 Gas shortage Gas leak Pipe clogging Measure gas pressure Thermo operation of compressor 2 If the unit stops o
94. oor Compressor motor speed Fan 13NAV 16NAV 40 34 4 0 28 22 40 rps 13 34 rps 3 0 2 5 a 20 A 15 L 8 10 E 22 rps 13 rps o 0 5 L 1 0 y E 15 kk ae 2 0 OFF Fig 8 2 4 32 8 COMFORT SLEET operation control When the COMFORT SLEEP button is pushed the ECONO operation activate together with the timer OFF function Each time of pressing COMFORT SLEEP button the off timer setting changes in the sequence of 1 3 5 or 9 hours 9 Hi POWER operation control When the Hi POWER button is pushed Hi Power operation is performed by change set temperature and air flow display on the remote control does not change 1 Changing of set temperature 2 0 2 5 SOS eee der 3 0 3 5 4 0 Setting temperature drop C 4 5 60 Hi Power Start Fig 8 2 5 E EE Time min 33 FILE NO SVM 05027 2 Changing of air flow Fan setting AUTO When the Hi POWER is started the fan of the indoor unit operates at higher air flow level than normal air flow AUTO normal air flow AUTO is shown in Fig 8 2 1 Because of the difference between room temperature and set temperature are increased automatically 3 Changing of air flow Fan setting One of 5 levels When the Hi POWER is started th
95. oor 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 FILE NO SVM 05027 8 1 1 Capacity control The cooling and heating capacity is varied by changing compressor motor speed The inverter changes compressor motor speed by changing AC 220 240 V power to DC once and controls capac ity by changing supply power status to the compressor with transistor module includes 6 transistors The outline of the control is as follows The revolution position and revolution speed of the motor are detected by detecting winding electromotive force of the compressor motor under operation and the revolution speed is changed so that the motor drives based upon revolution speed of the operation command by changing timing current transfer timing to exchange inverter output voltage and supply power winding Detection of the revolution position for controlling is performed
96. otor 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 compressor motor speed is restricted to Max 41 rps for 2 minutes and Max 91 rps for 2 minutes to 3 minutes respectively after the operation has started The set value of the remote control should be below the room temperature If the set value is above the room temperature Cooling operation is not performed And check whether battery of the remote control is consumed or not In AUTO mode 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 maximum 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 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 control 3 Judgment of trouble by every symptom Firstly use the method 1 for diagnosis Then use the method 2 and 3 to diagnose the details of troubles 58 FILE NO SVM 05027 10 3 Judgment by Flashing
97. perature 5 Continuous operation 1 Compressor does not operate 2 OPERATION lamp blinks 1 The temperature of the indoor heat exchanger is abnormally lower 2 Poor contact of the heat exchanger sensor The connector is disconnected CNO1 3 Heat exchanger sensor main P C board are defective Refer to 4 Main P C board is defective The status of No 4 is continued and make the following condition 1 Heat operation 2 Make the setting temperature higher enough than room temperature 1 Compressor does not operate 2 OPERATION lamp blinks 1 The temperature of the heat exchanger is abnormally high 2 The heat exchanger sensor connector has short circuit CNO1 3 The heat exchanger sensor is defective 4 P C board is defective Turn the power on after connecting the motor connector Start the operation with the following condition 1 Operation Cooling 2 Airflow High fan 3 Continuous operation 1 Motor does not rotate The key operation is accepted 2 The Motor rotates but it vibrates too much De 1 Poor contact of the motor connector 2 Fan motor is defective For 16NKV Procedure Shut off the power supply and remove the P C board assembly from the electronic parts base Remove the connecting cable from the terminal block Table 10 8 1 Check point Symptom 1 Is the fuse blown FILE NO SVM 05027 Causes 1 Application
98. pes thinner than 0 8 mm even when it is available on the market FILE NO SVM 05027 Table 2 2 1 Thicknesses of annealed copper pipes Thickness mm Nominal diameter Outer diameter mm R410A 2 Joints For copper pipes flare joints or socket joints are used Prior to use be sure to remove all contaminants a Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm In such a case socket joints can be used Sizes of flare pipe ends flare joint ends and flare nuts are as shown in Tables 2 2 3 to 2 2 6 below b Socket Joints Socket joints are such that they are brazed for connections and used mainly for thick pipings whose diameter is larger than 20 mm Thicknesses of socket joints are as shown in Table 2 2 2 Table 2 2 2 Minimum thicknesses of socket joints Nominal diameter Reference outer diameter of copper pipe jointed mm mm Minimum joint thickness 2 2 2 Processing of piping materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil other than lubricating oils used in the installed air conditioner is used and that refrigerant does not leak When using lubricating oils in the piping processing use such lubricating oils whose water content has been removed When stored be sure to s
99. ps e Auto Restart function is unavailable 37 FILE NO SVM 05027 8 4 Auto Restart Function 8 4 1 How to set auto restart function The indoor unit is equipped with an automatic To set the auto restart function proceed as follows restarting function which allows the unit to restart The power supply to the unit must be on the function operating with the set operating conditions in the event will not set if the power is off of power supply being accidentally shut down The Push the RESET button located in the center operation will resume without warning three minutes of the front panel continuously for three seconds after power is restored The unit receives the signal and beeps three times This function is not set to work when shipped from the The unit then restarts operating automatically in the factory Therefore it is necessary to set it to work event of power supply being accidentally shut down When the unit is on standby Not operating Operation Motions Push RESET button for more The unit is on standby than three seconds The unit starts to operate The green lamp is on After approx three seconds The unit beeps three times The lamp changes from and continues to operate green to orange If the unit is not required to operate at this time push RESET button once more or use the remote control to turn it off When the unit is in operation Operation Motions Push RESET button
100. rature of the outdoor heat exchanger detected by the outdoor heat exchanger is 5 C or lower and temperature lowered by 3 0 C than the The power coupler 1220 for 4 way valve is turned on and turned off in defrost operation 1 Heating capacity control Calculate the difference between temperature detected by room temp sensor every minute and the set temp set on Temp indicator and variation amount of room temp Then obtain the correction amount of the com mand signal and correct the current frequency command signal 2 High temp release control If temperature of the indoor heat exchanger detected by the indoor heat exchanger sensor is 3 55 C or higher compressor motor speed is gradually lowered to prevent over temp rising of compressed pressure If temperature becomes below 48 return to above item 1 Current release control minimum value of the outdoor heat exchanger during 10 to 15 minutes count time continued for 2 minutes or more If the following three conditions are satis fied defrost operation Timer defrost starts after heating operation for 37 minutes D Setting on remote control HEAT xx mode HIGH Fan 30 C temp 2 Room temp is 19 C to 24 C and outside air temp is 5 C or lower 3 Defrost operation has been already performed once The input current of compressor and outdoor fan motor Precisely inverter main circuit control section which occupies
101. rence line FILE NO SVM 05027 Remarks 2 Screws Mounting the fan motor as shown in figure below Reference Part name Cross flow fan Base bearing Procedures 1 Remove the front panel electrical part horizontal louver and the heat exchanger with the procedure 4 2 Remove 2 screws of the band motor L and other 2 screws of the band motor R and then remove the cross flow fan 3 Loosen the set screw of the cross flow fan then disconnect the fan and the fan motor Notice For position of the fan motor connector and drawing out of the lead cables refer to the procedure 5 Fix the cross flow fan with the set screw at the position where the gap between the back body and the right surface of the cross flow fan is 4 5 mm 1 Remove the front panel electrical part horizontal louver heat exchanger and the cross flow fan with the procedure G and 2 Remove the 2 screws fixing the base bearing 3 Remove the bearing from the base bearing If the housing protrudes from the base bearing put the housing in position and attach the bearing to the base bearing FILE NO SVM 05027 Remarks Gr 2 Screws L 11 2 Microcomputer Part name Procedures Common procedure 1 Turn the power supply off to stop the operation of air conditioner 2 Remove the front panel e Remove the 4 fixing screws 3 Remove the electrical part base l
102. rn the operation to the above item 1 Comp motor 9 0 speed down Comp motor speed keep Normal control Fig 8 2 2 4 Limit for maximum compressor motor speed by indoor fan speed When outdoor temperature sensor detected 32 or lower and indoor heat exchanger sensor detected 17 C or lower the maximum compressor motor speed is limited by the indoor fan speed For example the compressor motor speed is limited as described in the table below Table 8 2 1 RAS 13NKV RAS 16NKV rps Air flow rate rps round per second 5 Louver control The vertical air flow louvers are automatically set to horizontal or cool memory position When temperature of indoor heat exchanger becomes 5 C or lower by the prevent freezing control and the compressor is turned off the vertical air flow louvers close once and then return to the position of previous time 6 Discharge temperature control Common control to cooling and heating The discharge temperature of refrigerant gas from the compressor is detected by the discharge temperature sensor and controls operating compressor motor speed 1 Control 1 A zone Normal operation zone When TD detect value is 98 C or lower the operation is performed with operating motor speed instructed by the serial signal Control 2 B zone Slow up zone of motor speed When TD detect value is 98 C or higher operating motor speed is slowly up Control
103. room temperature Low LOW MED 2 MED MED NIGH A10 0 4300700 MEDE 110 52 440 710 Cooling and Fan only l 910 410 1230 600 880 390 1230 600 780 330 1030 470 880 27890 gt 1230 1600 810 350 1130 530 e EE LEE EC UL 720 290 920 40 SUL 660 260 860 380 1290 620 1560 760 MED 1200 570 1510 740 Heating _ 1020 470 1330 640 1000 460 1330 640 L LOW 930 420 1230 600 L 880 390 1230 600 UL 780 330 1030 470 SUL 550 180 750 30 _ 29 FILE NO SVM 05027 8 1 8 Outdoor fan control Although the outdoor fan motor drives the outdoor fan by non step variable system of the revolution speed the revolution speed is restricted to three steps on the convenience of controlling If a strong wind is lashing outside of the room the operation may be continued as the outdoor fan stops in order to protect the outdoor fan motor If a fan lock occurred due to entering of foreign matter the air conditioner stops and an alarm is displayed lt COOL DRY gt Table 8 1 3 Model name 13NAV and 16NAV Compressor revolution rps To 34 7 From 35 3 TO gt 38 Outdoor temp sensor TO TO lt 38 lt 15 gt 38 ECONO operation TO lt 38
104. room temperature when the operation has started Table 8 3 1 Fig 8 3 1 If room temperature is higher than 1 C of perset temperature Cooling operation is performed TEMPORARY button Control OFF ON Temporary Auto operation start If room temperture is within 1 C of perset temperature Fan only operation is performed After pushing button Auto Restart at UL speed for 3 seconds control select f room temperture is lower than 1 C of perset After pushing button Temporary Cooling temperture Heating operation is performed for 10 seconds operation start Ta 8 3 1 Temporary auto operation e When the RESET button is pushed the Cool Operation Auto operation with set temperature fixed at 25 G 190 starts Controlling is same as that of Auto opera Ts Fan Only tion by the remote controller Ts 1 e When the RESET button is pushed again Heat Operation the operation stops e During Temporary Auto operation operation by the remote controller is accepted Fig 8 2 12 e Using the Auto Restart function the Temporary Auto operation starts when power failure is reset 8 3 2 Temporary cooling operation e When the RESET operation button keeps pushed for 10 seconds Cooling operation of which compressor motor speed and the indoor fan speed are fixed starts Compressor motor speed 30 rps Indoor fan speed Low e When the RESET operation button is pushed again the operation sto
105. rts 1 Lead wires Connection with terminal block 3 wires Black White Orange Connection with compressor Remove the connector 3P Connection with reactor 2 Connectors CN300 Outdoor fan 3P White CN701 4 way valve Yellow CN600 TE sensor 2P White CN601 TD sensor White CN603 TS sensor White CN602 TO sensor 2P White CN700 Pulse modulating valve 6P White 2 Remove the control board assembly from P C board base 1 Main control board assembly side Remove two claws of P C board base and remove upward the heat sink with hands Remove three screws fixing the heat sink and main control board assembly side and replace the board with a new one 1 Perform work of item 1 of 1 CD and 2 Remove fixed screws fixing to the bottom plate ST1T 4 x 102 3 pcs 3 Remove fixed screws fixing to the heat exchanger ST1T 4 x 102 2 pcs 4 Remove fixed screw fixing to the valve mounting plate ST1T 4 x 102 1 pc FILE NO SVM 05027 Remarks CN601 CN603 CN701 CN500 CN700 CN602 CN300 CN300 CN301 and CN701 etc at the control board assembly side are connectors with locks Therefore remove the connector while pushing the part indicated by an arrow d board base P C board When mounting a new board check that the board is correctly set in the groove of base holder of P C board Re
106. ructure designed to drain water collected from dew which forms on the back of e For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing its bottom up at the specified parts O Push Push Fig 9 2 18 9 2 7 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 drain hose a wavy shape j 50 mm X IX or more 5 EA Do not put Do not put the drain the drain hose end hose end in into water the drainage ditch Fig 9 2 19 52 the indoor unit to the drain Therefore do not store the power cord and other parts at a height above the drain guide Wall Drain guide Space for pipes 4 Fig 9 2 21 FILE NO SVM 05027 9 3 Outdoor Unit 9 3 2 Refrigerant piping connection 9 3 1 Installation place lt Flaring gt Aplace which provides the spaces around the 1 Cut the pipe with a pipe cutter outdoor unit as shown in the left diagram A place which can bear the weight of the outdoor O X icd X X unit and does not allow an increase in noise level TK 90 SE 9 and vibration amp g Ef a A place where the operation noise and discharged air do not disturb users neighbors Fig 9 3 2 A place which is not exposed
107. signals to the indoor unit Mode display Indicates the current operation mode AUTO Automatic control A Auto changeover control zx Cool Dry 2 Heat Fan only Temperature display Indicates the temperature setting 17 C to 30 C When you set the operating mode to Fan only no temperature setting is indicated Louver operation display Indicates the louver operation amp Fix lt 9 Swing FAN speed display Indicates the selected fan speed AUTO or one of five fan speed levels LOW LOW MED nl MED HIGH can be indicated Indicates AUTO when the operating mode is either AUTO or Dry TIMER and clock time display The time set for timer operation or clock time is indicated The present time is always indicated except for TIMER operation Hi POWER display Indicates when the Hi POWER operation starts Push the Hi POWER button to start and push it again to stop the operation PRESET display Flashes for 4 seconds when the PRESET button is pushed and hold to memorize mark is indicated when PRESET button is pushed than 4 seconds Push another button to turn off the mark ECO display Indicates when the ECO is in operation COMFORT SLEEP display Indicates when the COMFORT SLEEP is in operation Each time you push the COMFORT SLEEP button the display changes in the sequence of 1 3 5 or 9h QUIET display Indicates when the QUIET is in operation
108. t or bottom left Rear right 1 Rear left Bottom right 4 Left Bottom left Insulate the refrigerant pipes separately with insulation not together 6 mm thick heat resisting polyethylene foam 9 1 2 Optional installation parts Part Code Parts name Q ty Refrigerant piping Liquid side 26 35 mm o Gas side 29 52 mm 13 Series 9 Gas side 12 7 mm 16 Series Pipe insulating material polyethylene foam 6 mm thick 1 One Putty PVC tapes each lt Fixing bolt arrangement of outdoor unit gt 600 Suction side Diffuser Drain hole Fig 9 1 2 FILE NO SVM 05027 1 Secure the outdoor unit with the fixing bolts and nuts if the unit is likely to be exposed to a strong wind Use 28 mm or 210 mm anchor bolts and nuts If itis necessary to drain the defrost water attach drain nipple 9 and cap water proof to the bottom plate of the outdoor unit before installing it 45 9 1 3 Accessory and installation parts FILE NO SVM 05027 1 Part No Part name Q ty Part No Part name Q ty Part No Part name Q ty Remote control holder x 1 km Mounting screw 24 x 25 x 6 Qu gt Others Name Owner s manual Installation manual 46 Cap water proof x 2 For Heat pump model only The part mark
109. t Cooling gt Temperature condition C Indoor Outdoor Standard pressure P MPa 42 to 44 0 to 3 Heat exchanger pipe temp T1 C T2 C Indoor fan mode High 80 Outdoor Compressor fan revolution mode rps 27 19 35 lt Heating gt Temperature condition C Indoor Outdoor 0 9 to 1 2 Standard pressure P MPa 79 to 10 50 to 45 Heat exchanger pipe temp T1 C T2 C High High 77 Outdoor Compressor fan revolution mode rps 20 7 6 Note 2 7 to 2 9 42 to 46 0to3 High 82 1 Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent Thermistor themometer 2 Connecting piping condition 5m 24 7 1 Indoor Heat Exchanger Sensor Unit Temperature Sensor FILE NO SVM 05027 7 CONTROL BLOCK DIAGRAM Infrared Rays Signal Receiver Infrared Rays 36 7KHz 1 Power Supply Remote Circuit Control Noise Filter L En ENE From Outdoor Unit REMOTE CONTROL Clock Frequency Oscillator Circuit Functions Louver Control 3 minute Delay at Restart for Compressor Motor Revolution Control Processing Temperature Processing Timer Serial Signal Communication Louver ON OFF Signal Serial Signal Transmitter Receiver Serial Signal Communication AUTO COOL DR
110. t P C board layout gt For 13NKV FILE NO SVM 05027 Remarks Replace the thermal fuse terminal block microcomputer ass y and the P C board ass y 3 1 f cNi 3 Je c58 v Ji J2 SS 43 Hu OF 75 D T3 15A 250V SR 8 0 0 0 R21 EE S 2 007 2 I 5 CH 507 sar r 5 le 2 gt O O 21 J21 J16 x OO _ 3220 0 323 4 0 0 o gt m 2 CROS Mi doen OxO2 4 s 925 27 J28 8 2 0 4 s e SS 50 Wi vO Q O 5 2 330 0 e cso Q Qss GO X3 f 1 08 3 0 0 OD 2 s Ee o o QC O O SES J49 OO ren 350 o J48 sz E E F F 4520 00 05 55 Jes 057 5 N TOSHIBA cs eg yes Oo mosv o 3 3 Aen ET O50 OPO WP 004 04 OPO cana J64 COMPONENT SIDE Top View 82 FILE NO SVM 05027 lt P C board layout gt For 16NKV Fuse R04 CN10 IC03 SI
111. t will blink 5 times CHK RESET CLOCK per 1 sec 3 Press CLR button After service finish for clear service code in memory e 7F is indicated on the display of the remote control e Alphanumeric characters used for the check code S 5 5 is 6 4 Press 0 button to release the service mode Ais A bis B The display of the remote control returns to as it L is C d is D was before service mode was engaged This illustration in only for Heat pump model For Cooling only model there is not the XX symbol 60 FILE NO SVM 05027 10 4 2 Caution at servicing 1 After servicing push the START STOP 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 Table 10 4 1 Block distinction Operation of diagnosis function Check Block Check Cause of operation Air conditioner Remarks aa action code code status mm Indoor Short circuit or disconnec Operation Displayed when 1 Check the room temp sensor List PC tion of the room continues error is detected 2 When the room temp sensor is board temperature sensor normal check P C board etc TA sensor r Being o
112. te control is set to the service mode the indoor controller diagnoses the operation condition and indicate the information of the self diagnosis on the display of the remote control with the check codes If a fault is detected all lamps on the indoor unit will blink at 5Hz and it will beep for 10 seconds Pi Pi Pi The timer lamp usually blinks 5Hz during the self diagnosis 2 10 4 1 How to use remote control in service mode 1 Press CHK button with a tip of pencil to set the remote control to the service mode 00 is indicated on the display of the remote control e The timer lamp on the indoor unit blinks continuously 5 times per 1 sec TOSHIBA 2 Press TIMER A button AUTO A x 932 7 If there is no fault with a code the indoor unit will D I ARD beep once Pi and the display of the remote ON D BON control will change as follows PM LH HiPOWER EUA C mm mm EECH A e Check the unit with all 35 check codes 00 to 22 S as shown in Table 9 4 1 Y e Press TIMER Y button to change the check o code backwards If there is a fault the indoor unit will beep for 10 ever C seconds Pi Pi Pi Note the check code on the display of the remote ap 3 5 contro e 2 digits alphanumeric will be indicated on the em 5 display sizer e GET All lamps on the indoor uni
113. the marginal level an oxygen starvation accident may result 7 Be sure to carry out installation or removal according to the installation manual Improper installation may cause refrigeration trouble water leakage electric shock fire etc 8 Unauthorized modifications to the air conditioner may be dangerous If a breakdown occurs please call a qualified air conditioner technician or electrician Improper repair s may result in water leakage electric shock and fire etc 2 2 Refrigerant Piping Installation 2 2 1 Piping materials and joints used For the refrigerant piping installation copper pipes and joints are mainly used Copper pipes and joints suit able for the refrigerant must be chosen and installed Furthermore it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants 1 Copper Pipes It is necessary to use seamless copper pipes which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg 10 m Do not use copper pipes having a collapsed deformed or discolored portion especially on the interior surface Otherwise the expansion valve or capillary tube may become blocked with contaminants As an air conditioner using R410A incurs pressure higher than when using R22 it is necessary to choose adequate materials Thicknesses of copper pipes used with R410A are as shown in Table 2 2 1 Never use copper pi
114. the wiring diagrams attached to the indoor outdoor units Table 10 1 No Troubleshooting Procedure Page 1 First Confirmation 52 Primary Judgment 53 Judgment by Flashing LED 54 of Indoor Unit Self Diagnosis by Remote Control 55 5 Judgment of Trouble by 58 Every Symptom 6 How to Check Simply the Main Parts 66 Discharging position Discharging period 10 seconds or more j NOTE A large capacity electrolytic capacitor is used in the outdoor unit control inverter Therefore if the power supply is turned off charge charging voltage DC280V 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 100Q40W or plug of the soldering iron to voltage between terminals of the C14 CAUTION HIGH VOLTAGE 380 V is indicated electrolytic capacitor 760uF 400 V on board and then perform discharging Inverter cover Plug of soldering iron P C board Soldered surface 10 1 First Confirmation 10 1 1 Confirmation of power supply Confirm that the power breaker operates ON normal
115. ther refrigerant than R410A is mixed pressure in the refrigeration cycle becomes abnormally high and it may cause personal injury etc by a rupture 2 Confirm the used refrigerant name and use tools and materials exclusive for the refrigerant R410A The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air condi tioner using R410A as refrigerant To prevent mischarging the diameter of the service port differs from that of R22 3 If a refrigeration gas leakage occurs during instal lation servicing be sure to ventilate fully If the refrigerant gas comes into contact with fire a poisonous gas may occur 4 When installing or removing an air conditioner do not allow air or moisture to remain in the refrigeration cycle Otherwise pressure in the refrigeration cycle may become abnormally high so that a rupture of personal injury may be caused b After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged with a large volume of refrigerant is installed in a small room it is necessary to exercise care so that even when refrigerant leaks its concentration does not exceed the marginal level If the refrigerant gas leakage occurs and its concentration exceeds
116. tion start e When 12 to 25 minutes passed after operation start and room temp is 3 C or lower than set temp e When 12 to 25 minutes passed after operation start and room temp is higher than set temp 3 When 25 minutes or more passed 4 after operation Outside air temp C FILE NO SVM 05027 TO 16NAV 13NAV 16 0 9 8 10 8A 15 5 11 0 10 5 9 8A 10 8A 9 8A 10 8A Fig 8 2 9 Defrost control 1 Detection of frost start In heating operation time duration while the FAN e Room temp lt Set Room temp compressor operates is counted and defrost Manual temp 4 C Set temp 3 5 C operation starts by any condition described below The outdoor unit controls the outdoor fan based upon a The counted time is 28 minutes or more the operation signal sent from the indoor unit and also controls revolution speed of the compressor motor and status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is 20 C or lower continued for 2 minutes or more b The counted time is 28 minutes or more and status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is 7 C or lower and temperature lowered by 2 5 C than the minimum value of the outdoor heat exchanger during 10 to 15 minutes count time continued for 2 minutes or more c The counted time is 34 minutes or more and status that tempe
117. ue wrench For 6 35 7 Screwdriver 11 Tape measure 3 Pipe cutter 8 Spanner of Monkey wrench 12 Metal saw Also prepare the following equipments for other installation method and run check 1 Clamp meter 3 Insulation resistance tester 2 Thermometer 4 Electroscope 10 2 4 Recharging of Refrigerant FILE NO SVM 05027 When it is necessary to recharge refrigerant charge the specified amount of new refrigerant according to the following steps Recover the refrigerant and check no refrigerant remains in the equipment Connect the charge hose to packed valve service port at the outdoor unit s gas side Connect the charge hose to the vacuum pump adapter Open fully both packed valves at liquid and gas sides Place the handle of the gauge manifold Low in the fully opened position and turn on the vacuum pump s power switch Then evacuating the refrigerant in the cycle pmm When the compound gauges pointer has indi cated 0 1 Mpa 76 cmHg place the handle Low in the fully closed position and turn off the vacuum pump s power switch Keep the status as it is for 1 to 2 minutes and ensure that the compound gauge s pointer does not return Set the refrigerant cylinder to the electronic balance connect the connecting hose to the cylinder and the connecting port of the electronic balance and charge liquid refrigerant For refrigerant charging see the figure be
118. ut of place Operation Displayed when 1 Check heat exchanger sensor 14173 disconnection short circuit continues error is detected 2 When heat exchanger sensor is or migration of heat normal check P C board exchanger sensor TC sensor Lock of indoor fan or trouble All off Displayed when 1 Check P C board onthe indoor fan circuit error is detected 2 When P C board is normal check the motor Not 74 Trouble on other indoor Operation Displayed when Replace P C board displayed I PC boards continues error is detected r Return serial signal is not Operation Flashes when 1 When the outdoor unit never LI ting cable LI 71 sent to indoor side from continues trouble is operate and serial operation started detected on 1 Check connecting cable and signal 1 Defective wiring of return serial correct if defective wiring connecting cable signal and 2 Check 25A fuse of inverter 2 Operation of normal status P C board compressor thermo when signal is 3 Check 3 15A of inverter Gas shortage reset P C board Gas leak 2 To display Other block during operation check compressor thermo operation and supply gas check gas leak also 3 Unit operates normally during check If Return serial signal does not stop between 2 and 3 of the indoor terminal block replace inverter P C board If signal stops between indoor terminal block 2 and 3 replace indoor
119. utton on remote control YES Is fuse FO1 Is voltage DC 12V or 5V indicated on rear of indoor control board normal NO YES Is the voltage 14 31 4V DC Refer to lt Primary check gt or this problem is one step short of power P C board block at C50 Are DC 5V Turn off breaker DC 12V supplied once and turn it to main on again after P C board removing motor Parts R04 C01 DB01 C50 IC08 IC11 and T01 are defective Are DC 5V or DC 12V supplied to main P C board Check item Conceivable principle cause Measure Item by symptoms Remote control is defective Refer to 5 Troubleshooting for Remote Control Does transmission mark on remote control flash normally and is its signal transmitted properly NO YES Unit operates normally Does fan motor connector between 1 and short circuit Microcomputer is defective Replace main P C board Regulator IC IC08 IC11 are defective Replace motor e Be sure to disconnect the motor connector CN10 after shut off the power supply or it will be a cause of damage of the motor 63 FILE NO SVM 05027 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 t
120. wiring same as original condition and then tighten the screw from the LED unit to the back body 4 Attach the TC sensor to the holder 5 Tighten the screw for the ground connection 6 Assemble the drain guide the TC sensor wire should be covered by the drain guide 7 Tighten the screw on the electrical part cover Horizontal louver 1 Remove the front panel and the electrical part with the procedure 2 2 Remove the center shaft of the horizontal louver from the back body 3 Remove the left shaft from the back body 4 Remove the horizontal louver from the back d body l Left shaft Center shaft 79 Part name Heat exchanger Fan motor Procedures 1 Remove the front panel electrical part and the horizontal louver with the procedure 2 Remove the pipe holder on the rear side of the main unit 3 Remove 2 screws of the heat exchanger on the base bearing side 4 Remove 2 screws of the heat exchanger on the left side upper and lower from the back body and then pull out the upper side of the heat exchanger slowly 1 Remove the front panel and the electrical part with the procedure 2 2 Loosen the set screw of the cross flow fan 3 Remove 2 screws fixing the motor band R 4 Pull out the fan motor Connector cover Pull out the lead wires of the fan motor from this hole Reference line When mouting the fan motor put the R end of the connector cover this refe

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