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SERVICE MANUAL

1. Compressor Propeller fan Refrigerant amount 1 1 OUTDOOR UNIT NOTE m Gas leak check position Refrigerant flow Cooling Refrigerant flow Heating NOTE The maximum pipe length of this air conditioner is 15 m When the pipe length exceeds 15m the additional charging of refrigerant 20g per 1m for the part of pipe exceeded 15m is required Max 100g DO FILE NO SVM 10001 7 2 Operation Data lt Cooling gt Tempeature Model name Standard Heat exchanger Indoor Outdoor Compressor condition C RAS pressure pipe temp fan mode fan mode revolution Indoor Outdoor P MPa 2719 35 sma sss s lt Heating gt Tempeature Model name Standard Heat exchanger Indoor Outdoor Compressor condition C RAS pressure pipe temp fanmode fan mode revolution p Indoor Outdoor P MPa 13SKV2 E 2 6102 8 41to43 16SKV2 E 271029 431045 20 10SKV2 E 2 5102 7 39to41 NOTES 1 Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent Thermistor themometer 2 Connecting piping condition 5 m 24 8 1 Indoor Unit 8 CONTROL BLOCK DIAGRAM RAS 10SKV2 E RAS 13SKV2 E Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal Receiver
2. 3 Swing e Swing operation is performed in width 35 with the stop position as e Swing the center When pressing If the stop position exceeds either upper or lower limit position SWING button during swing operation is performed in width 35 from the limit which the operation the louver stop position exceeded starts swinging 38 FILE NO SVM 10001 Operation flow and applicable data etc Description 9 ECO When pressing ECO button on the remote controller a lt Cooling operation gt operation Economic operation is performed 1 The control target temperature lt Cooling operation gt increase 0 5 C per hour up to 2 C This function operates the air conditioner with the difference starting from the set temperature between the set and the room temperature as shown in the when ECONO has been received following figure 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO operation 3 The compressor speed is controlled as shown in the left figure SSN E 5 Fan speed depend on presetting and can change every speed o x DRY max COOL min 6 x 5 COOL min DRY max COOL min 6 x 4 COOL min DRY max COOL min 6 x 3 COOL min DRY max COOL min 6 x 2 COOL min DRY max COOL min 6 x 1 COOL min 10SKV2 E 13SKV2 E 16SKV2 E gt bm
3. 35 6 Release protective control by temperature of indoor heat 36 7 Defrost control Only in heating operation m 37 Louver 38 DECIMI p EET 38 2 AIr direcon AC USUI GIA 38 Sc PEEL MT 38 bte ER 39 LOE Temporary perat ON Tm 40 11 Discharge temperature control ctr Ro Ee RR REX 40 12 Pulse Modulating valve P M V control r nnn 41 13 Self Cleaning 42 14 Remote A or B selection d e ed er xen e ken eda en edi otn 43 15 COIMIET TOU u un prt per e m a ae cta atta E Gd MN aa 44 16 COMFORT SLEEP MOde 44 IZ One COM OTE g yaaa nte aN fal bet ho Ae Ao t ba o uv uter 44 18 Hii POWER Mod tus 45 19 FILTER Indicato at ree Be eed 45 9 3 Auto Restart Function 9 3 1 How to Set the Auto Restart Function cemere 46 9 3 2 How to Cancel the Auto Restart Function 47 9 3 3 Power Failure During Timer Operation r 47 9 4 Remote Controller and Its Fuctions 9 4 1 Parts Name of Remote Controller a 48 9 4 2 Operation of remote control 48 9 4 3 Name and Functions
4. 108 FILE NO SVM 10001 1 SAFETY PRECAUTIONS For general public use Power supply cord of outdoor unit shall be more than 1 5 mm H07RN F or 60245IEC66 polychloroprene sheathed flexible cord Read this SAFETY PRECAUTIONS carefully before servicing The precautions described below include the important items regarding safety Observe them without fail After the servicing work perform a trial operation to check for any problem Turn off the main power supply switch or breaker before the unit maintenance CAUTION New Refrigerant Air Conditioner Installation THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY OZONE LAYER R410A refrigerant is apt to be affected by impurities such as water oxidizing membrane and oils because the working pressure of R410A refrigerant is approx 1 6 times of refrigerant R22 Accompanied with the adoption of the new refrigerant the refrigeration machine oil has also been changed Therefore during installation work be sure that water dust former refrigerant or refrigeration machine oil does not enter into the new type refrigerant R410A air conditioner circuit To prevent mixing of refrigerant or refrigerating machine oil the sizes of connecting sections of charging port on main unit and installation tools are different from those used for the conventional refrigerant units Accordingly special tools are requi
5. Outdoor unit c 5 3 o Qa 3 3 3 3 3 3 E 3 2 290 33 750 an motor output w Air flow rate Cooling Heating m min 37 5 37 5 Type Flare connection Indoor unit 26 35 29 52 26 35 29 52 RATOA 0 80 wing connection ntereonnection Usable temperature range ndoor Cooling Heating C 21 32 0 28 21 32 0 28 Outdoor Cooling Heating C 10 46 15 24 10 46 15 24 nstallation plate atteries ____ 780 2 d E o 5 S P e o 2 o o ajo eoo iquid side as side iquid side as side 383 3 Outdoor unit Elo EJE 3 3 3 3 O 3 3 e z z z x p p 3 gt x gt x 3 3 3 13 13 3 2 3 e 5 e S 2 e 5 5 g c 2 z e 8 ol sis als gt 3 Refrigerant Weight A Q gt o z lt e nd lt O 5 amp Q S c c 5 5 5 elz 5 gt m 5 l 5 53 o E 2 z 2 3 D S 2 o e 8 0 5 g Accessory Remote controller holder Pan head wood screw 23 1 x 16L 2 234 x 16L Plasma air purifier nstallation manual 1 2 1 2 6 4 x 25L 2 3 1 1 1 2 The specification may be subject to change without notice for purpose of improvement
6. 2T en a Si a ee Indoor DB 27 C WB 19 C Outdoor DB 35 C 1 abi sm aie SOS ZS lle Tas a RAS 10SKV2 E 0 I I I I I I I I I I I 0 10 20 30 40 50 60 70 80 90 100 110 120 Compressor Speed rps 2 4 Capacity Variation Ratio According to Temperature Capacity ratio lt Cooling gt 105 1 1 100 i RAS 13SKV2 E 95 90 85 Capacity ratio 100 2 5kW RAS 10SKV2 E 3 5KW RAS 13SKV2 E 4 5kW RAS 16SKV2 E 50 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Outdoor temp C RAS 10SKV2 E Heating Capacity ratio FILE NO SVM 10001 RAS 16SKV2 E Indoor DB 20 C Outdoor DB 7 C WB 6 C 0 10 20 30 40 50 60 70 80 90 100 110 120 Compressor Speed rps lt Heating gt 120 100 80 60 40 20 RAS 10SKV2 E RAS 13SKV2 E RAS 16SKV2 E 7 Capacity ratio 100 3 2kW RAS 10SKV2 E 4 2KW RAS 13SKV2 E 5 5kW RAS 16SKV2 E Condition Indoor DB20 C Indoor air flow High Pipe length 5m Voltage 230V Outdoor temp C FILE NO SVM 10001 3 REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC 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 refrigerat ing oil a
7. H H H H H Fig 10 3 11 How to remove the drain hose The drain hose is secured in place by a screw Remove the screw securing the drain hose then pull out the drain hose Screw Drain hose Fig 10 3 12 _ 58 How to attach the drain cap 1 Insert hexagonal wrench 4 mm 4 mm Fig 10 3 13 2 Firmly insert drain cap No gap AS Do not apply lubricating oil refrigerant machine oil If applied deterioration and sort a head drain leakage of the drain lug may occur wrench 4mm pig may Fig 10 3 14 How to attach the drain hose Always use the original screw that secured the drain hose to the unit If using a different screw may cause water to leak Insert the drain hose firmly until the connector contacts with the insulation then secure it in place using the original screw CAUTION Securely insert the drain hose and drain cap otherwise water may leak In case of right or left piping After making slits on the front panel with a knife or similar tool cut them out with a pair of nippers or an equivalent tool Fig 10 3 15 when inserting the drain cap FILE NO SVM 10001 In case of bottom right or bottom left piping After making slits on the front panel with a knife or similar tool cut them out with a pair of nipper
8. n I I I Al N I 1 e e 40 40 30 30 Earth line Earth line Connecting cable Power cord Fig 10 4 12 Model RAS 10SKV2 E 13SKV2 E 16SKV2 E B 220 240V 50 Hz ewer Source 220 230V 60 Hz Maximum running current 80 11 0 A Installation fuse 16 A breaker or fuse rating All types can be used Power cord H07RN F or 245IEC66 1 5 mm B4 Connection cable HO7RN F or 245IEC66 1 0 mm CAUTION Incorrect wiring connection may cause electri cal parts to burn out Be sure to comply with local regulations codes when running the wire from outdoor unit to indoor unit Size of wire and wiring method etc Every wire must be securely connected If incorrect or incomplete wiring is carried out fire or smoke may result Prepare the power supply for the exclusive use of the air conditioner This product can be connected to the main breaker Connection to fixed wiring A switch which disconnects all poles and has a contact separation of at least 3 mm must be incorporated in the fixed wiring when connect ing to a main breaker circuit 10 5 Test Operation 10 5 1 Gas Leak Test Check the flare nut connections for gas leaks with a gas leak detector and or soapy water Valve Cover Check places for flare nut connection Indoor unit Check places for outdoor unit Fig 10 5 1 10 5 2 Test Opera
9. Indoor unit control Calculation function temperature calculation Indoor fan motor Activation compensation function of indoor fan Louver motor Operation command Cold draft preventive function Timer function Serial signal send receive Indoor heat exchanger release control _ l Outdoor unit Serial signal send receive Outdoor unit control inverter Frequency control of inverter output Waveform composite function Calculation function Compressor Temperature calculation Outdoor fan motor AD conversion function 4 way valve Quick heating function Pulse Modulating valve Delay function of compressor reactivation P M V Current release function GTr over current preventive function Defrost operation function 30 FILE NO SVM 10001 Item Operation flow and applicable data etc 1 Basic operation 2 Cooling Heating operation The operations are performed in the following parts by controls according to cooling heating conditions 1 Receiving the operation ON signal of the remote controller the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit 2 At the indoor unit side the indoor fan is operated according to the contents of 2 Indoor fan motor control and the louver according to the contents of 9 Louver control respectively 3 The outdoor unit controls the outdoor fan motor compressor puls
10. NO Remote controller is defective Refer to 5 Troubleshooting for remote controller Replace main Does fan motor connector between CN10 D short circuit Microcomputer is defective Parts R01 R02 DBO1 CO1 YES C03 IC11 and T101 are defective Is voltage DC12V or 5V indicated on rear of indoor control board normal Parts of a power supply circuit defective NO Is DC310 340V supplied between CN10 D 9 Replace fan motor Be sure to disconnect the motor connector CN31 after shut off the power supply or it will be a cause of damage of the motor 2 Power is not turned on though Indoor P C board is replaced Confirmation procedure Turn on power supply Does OPERATION indicator flash NO Is wired correctly to white and black lead wires of terminal block YES To item of Power supply is not turned on 74 FILE NO SVM 10001 9 Only the indoor motor fan does not operate lt Primary check gt 1 Is it possible to detect the power supply voltage AC220 240V between O and Q 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 approximately 10 minutes
11. Open close valve for charging Electronic balance for IAII charging Service port Fig 3 4 1 Configuration of refrigerant charging de FILE NO SVM 10001 1 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 It is 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 Refrigerant Refrigerant cylinder cylinder Electronic balance Siphon R410A refrigerant is HFC mixed refrigerant Therefore if it is charged with gas the composi tion of the charged refrigerant changes and the characteristics of the equipment varies Fig 3 4 2 3 5 Brazing of Pipes 9 p 1 Phosphor bronze brazing filler tends to react 3 5 1 Materials for Brazing with sulfur and produce a fragile compound water solution which may cause a gas 1 Silver brazing filler leakage Therefore use any other type of Silver brazing filler is an alloy mainly composed brazing filler at a hot spring resort etc and of silver and copper It is used to join iron copper
12. are indicated Note Keep the remote control in accessible transmission to the indoor unit otherwise the time lag of up to 15 minutes will occur The setting will be saved for the next same operation _ 49 10 11 12 13 FILE NO SVM 10001 PRESET OPERATION Set your preferred operation for future use The setting willbe memorized by the unit for future operation except air flow direction 1 Select your preferred operation 2 Press and hold PRESET for 3 seconds to memorize the setting The mark displays 3 Press PRESET Operate the preset operation AUTO RESTART OPERATION To automatically restart the conditioner after the power failure Power of the unit must be on Setting 1 Press and hold the RESET button on the indoor unit for 3 seconds to set the operation 3 beep sound and OPERATION lamp blink 5 time sec for 5 secpmds Do not operate ON timer and OFF timer 2 Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation 3 beep sound but OPERATION lamp does not blink QUIET OPERATION To operate at super low fan speed for quiet operation except in DRY mode Press QUIET Start and stop the operation Note Under certain conditions QUIET operation may not provide adequate cooling or heating due to low sound features COMFORT SLEEP OPERATION To save energy while sleeping automatically control air flow and automatically turn OFF Press 8
13. 5 Fan speed M L x 1 4 L FILE NO SVM 10001 Description Symbols UH Ultra High H High M Medium M Medium L Low L Low L Low UL Ultra Low SUL Super Ultra Low The fan speed broadly varies due to position of the louver etc The described value indicates one under condition of inclining downward blowing 1 When setting the fan speed to L L M M or H on the remote controller the operation is performed with the constant speed shown in Fig 1 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 2 and Table 1 according to the setup tempera ture room temperature and heat exchanger temperature Linear approximation from M and L Table 1 Indoor fan air flow rate COOL HEAT DRY rpm m3 h rpm m3 h rpm m3 h 571 1300 620 1510 735 571 1300 1510 546 1250 1480 515 1200 1430 465 1080 1280 440 1050 1220 415 990 1150 359 870 1000 347 860 980 291 770 920 291 770 900 253 720 840 222 670 770 129 520 620 129 500 520 32 FILE NO SVM 10001 olem Operation flow and applicable data etc Description 2 Indoor fan In heating operation gt 1 When setting the fan speed to L motor control L M M or H on the remote controller the operation is per formed with the constant speed shown in Fig 3 and Table 1 2 W
14. Connect discharge resistance approx 1000 40W or soldering iron plug between terminals of the electro lytic capacitor 500uF or 760uF of C14 with printed CAUTION HIGH VOLTAGE on P C board Discharging position Discharging period 10 seconds or more Plug of soldering A iron OK if 500uF or 760uF DC280 to 380V Remove CN300 while pushing the part indicated by an arrow because CN300 is a connector with lock Resistance between phases should be approx 55 to 77Q Should be 10MQ or more FILE NO SVM 10001 Diagnosis Process flowchart Contents Summary Check winding resistance between phases of compres sor and resistance between outdoor frames by using a tester board assembly Is not short circuited OK if 0 510 gt 0 570 between windings Check by a digital tester Check compressor Winding is not opened winding resistance Operation Remove connector CN300 of the outdoor fan motor turn on the power supply breaker Replace Replace and perform the operation control board compressor Stops though activation is prompted Check operation within 2 minutes 20 seconds after activation stopped 11 8 How to Check Simply the Main Parts 11 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 PC board hold the
15. Should be placed where there are no obstacles such as curtains that may block the signal Do not install the remote controller in a place exposed to direct sunlight or close to a heating Source such as a stove Keep the remote controller at least 1 m away from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote controller should be determined as shown below Side view lopview 4 Indoor unit 5 Cy Uv 1r Reception Reception Remote range range controller Remote controller Fig 10 3 1 FILE NO SVM 10001 10 3 2 Drilling a Hole and Mounting Instal lation Plate Drilling a hole When install the refrigerant pipes from the rear J N 9 U hole nn 65 mm Hof 799 100 mm Fig 10 3 2 1 After determining the pipe hole position on the installation plate gt drill the pipe hole 065 mm at a slight downward slant to the outdoor side NOTE When drilling into a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the installation plate Anchor bolt holes 8 e c AE Pipe hole ndoor unit Weight Mounting sc
16. Wireless Unit Assembly Main PC Board MCC 5045 _ 19 Exchanger x E exe GRN amp YEL seo CNO1 CN51 343 f 4 4 DC Motor OO N 66 A CN31 Fan Motor WH Dye XA 2 3 3 3 SEA a OR VEL lt CN32 Louver Motor Va Van W ag dem 44 S 518 P m 66 TXT gt 1818 N 2 Color indication Lee 515 BRW BROWN Y YEL YELLOW AE I amp BLK BLACK 1 RED RED BLU BLUE WHI WHITE GRN amp YEL GREEN amp YELLOW FILE NO SVM 10001 6 SPECIFICATIONS OF ELECTRICAL PARTS 6 1 Indoor Unit Fan motor RAS 10 13SKV2 E AFN 220 20 4D AC 240V 20W for indoor RAS 16SKV2 E ICF 340 30 4 DC 340V 30W Room temp sensor TA sensor hog at 25 C Heat exchanger temp sensor TC sensor 10kQ at 25 C 6 2 Outdoor Unit No Pansname Type Specifications Le Heat exchanger temp sensor TE sensor vere attached nos T Terminal biock se Fs corrongww Gawubierorea 20 FILE NO SVM 10001 7 REFRIGERANT CYCLE DIAGRAM 7 1 Refrigerant Cycle Diagram RAS 10SKV2 E RAS 10SAV2 E INDOOR UNIT Temp measurement Indoor heat exchanger gt Cross flow fan Nal Max 20m Min 2m Chargeless 15m Charge 20g m U Pressure
17. place the handle Low in the fully closed position and turn off the vacuum pump s power switch Connect the charge hose to packed valve service port at the outdoor unit s gas side Keep the status as it is for 1 to 2 minutes and ensure Connect the charge hose to the vacuum pump that the compound gaugess pointer does not return adapter Set the refrigerant cylinder to the electronic balance Open fully both packed valves at liquid and gas connect the connecting hose to the cylinder and the sides connecting port of the electronic balance and charge liquid refrigerant For refrigerant charging see the figure below 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 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 3 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 Outdoor unit Refrigerant cylinder Ben siphon
18. 3hr 5hr or 9hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode Heating mode e The preset temperature will drop down as show on ECO operation Item No 9 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to setect thehours 1hr 3hr 5hr or 9 hr If the COMFORT SLEEP button is pressed again means cancel comfort sleep mode The principles of comfort sleep mode are e Quietness for more comfortable When room temperature reach setting temperature Save energy by changing room temperature automatically The air condition can shut down by itself automatically Remarks 1 Comfort sleep mode will not operate in dry mode and fan only mode 17 One Touch Comfort One touch comfort is the fully automated operation that is set according to the preferable condition in a region Fan Operation AUTO AUTO L Time after operation starts min AUTO L Fan operates depends on the setting temperature and room temperature During the One Touch Comfort mode if the indoor unit receives any signal with other operation mode the unit will cancel the comfort mode and operates according to the signal received Operation condition for model to Europe market When an indoor unit receives One Touch Comfort Signal from the remote controller the indoor unit operates as following 1 Air conditioner starts to operation when the signal is rece
19. AX n Do not put the drain hose end in the drainage ditch Do not rise the drain hose Jom Y 6 Do not the drain hose end into water Z ix Fig 10 3 21 2 Put water in the drain pan and make sure that the water is being drained outside 3 When connecting extension drain hose insulate the connection part of extension drain hose with shield pipe Shield pi ie ili 7 Drain hose Inside the room Extension drain hose Fig 10 3 22 CAUTION Install the drain pipe for proper drainage Improper drainage can result in water dripping inside the room This air conditioner has been designed to drain water collected from condensation which forms on the back of the indoor unit to the drain pan Therefore do not locate the power cord and other parts at a high place than the drain guide Wall Drain guide Fig 10 3 23 60 10 4 Outdoor Unit 10 4 1 Installation Place A place which provides enough space around the outdoor unit as shown in the diagram A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration A place where the operation noise and discharged air do not disturb neighbors A place which is not exposed to a strong wind A place free of combustible gases A place which does not block a passageway When the outdoor unit is to be installed in an elevated position be su
20. Indicates when the Hi POWER operation starts Press the Hi POWER button to start and press it again to stop the operation PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is flashing Press another button to turn off the mark 8 Eco indicator Indicates when the ECO is in activated Press the ECO button to start and press it again to stop operation 9 A B change indicator remote controller When the remote controller switching function is set B appears in the remote controller display When the remote controller setting is A there is no indication at this position 10 Comfort sleep Indicates when comfort sleep is activaled Press comfort sleep button to selectter 1 1 Quiet Indicates when quiet is activated Press quiet button to start and press it again to stop operation 12 One Touch Indicates when one touch comfort is activated Press one touch button to start the operation 13 Swing Indicates when louver is swing Press swing button to start the swing operation and press it again to stop the swing operation 51 FILE NO SVM 10001 10 INSTALLATION PROCEDURE 10 1 Installation Diagram of Indoor and Outdoor Units 65 mm or more Hook Installation Torma A l asss ta DAC For the rear left and left piping Insert the cushio
21. Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 7 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation started Check procedure Select phenomena described below 1 The outdoor unit stops 10 to 20 minutes after operation started and 10 minutes or more are required to restart the unit Gas circulation amount is down Measure gas pressure Thermo operation of compressor Gas shortage Gas leak Pipe clogging 2 If the unit stops once it does not operate until the power will be turned on again To item of Outdoor unit does not operate 3 The outdoor unit stops 10 minutes to 1 hour after operation started and an alarm is displayed Discharge temp error check code 03 1E Sensor temp error check code 02 1C Gas leak P M V is defective Miswiring of connecting wires of indoor outdoor units Clogging of pipe and coming off of TC sensor O Refer to the chart in 11 6 80 11 6 How to Check Simple the Main Parts lt Check procedure gt Discharge temp error gas leakage Check code 03 1E Gas leakage disconnection of TS TG sensors Check code 02 1C lt Valve drive check Is coil of the pulse motor valve NO FILE NO SVM 10001 P M V correctly set YES Set it correctly lt NO Is connecter of coil connected to inver
22. Outer dia 9 52mm oL eat insulator Thickness 0 8mm M v ST EN Pulse Modulating valve at liquid side DA89X1C 23FZ2 TS Outdoor heat exchanger Temp measurement Compressor LI Propeller fan Refrigerant amount Miri d OUTDOOR UNIT NOTE W Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating NOTE The maximum pipe length of this air conditioner is 20 m When the pipe length exceeds 15m the additional charging of refrigerant 20g per 1m for the part of pipe exceeded 15m is required Max 100g FILE NO SVM 10001 RAS 16SKV2 E RAS 16SAV2 E INDOOR UNIT T1 Temp measurement Indoor heat exchanger TC TA 2 E 52 20 218 Min 2m P Pressure measurement Deoxidized copper pipe m E Chargeless 15m Gauge attaching port Outer dia 6 35mm 6 5 Charge 20g m Vacuum pump connecting port Thickness 0 8 J 89 g 16 to 20m Deoxidized copper pipe Sectional stiape x lt Outer dia 12 7mm 16 s Thickness 0 8mm ee m Pulse Modulating valve at liquid side DA111A1F 20F1 TS Outdoor heat Split capillary Temp measurement
23. S Rd gt Z View Service port Z Z 2 R5 5 x 17L Ushape 600 For 28 10 anchor bolt 100 or more 3 Air intlel 600 or more Z ZY u _ _ _ Z Air outlel 100 or more p ibas 600 1 morg Z 2 11 x 14 Long holes For 8 210 anchor bolt 5 1 5 WIRING DIAGRAM RAS 10SKV2 E RAS 10SAV2 E RAS 13SKV2 E RAS 13SAV2 E FILE NO SVM 10001 COMPRESSOR 09 WH boa CN300 BLK CM 242 BLK Pos 9200 205 Q300 305 212 WHY FM J O O t IGBT MOS FET 111 2 fee PCBOARD oy aie P25 AL MCC 5009 0 1 YEL 4 P24 a P a enl gie dy YEL 4P22 P p CN700 pat AX R219 8319 Gi x w wv vw lt BRW P20 oo pas ar PULSE MOTOR VALVE YEL u sas lu L03 C13 Fused L01 VARISTOR 3X3 2 is DB01 Z E II De vw Z T cN603 tf Hah PELL mE Lu C12 C14 ABSORBER loi UP SENSOR t Geh y att m RELAY VARI TOR onso2 11 P19 Il Fuse 9 OO FEMP SENSOR E d 7 CN601 O S eni ORNTBLKT WH po So ee po 1 IS PEME SEN
24. 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 3 2 2 Table 3 2 2 Minimum thicknesses of socket joints Reference outer diameter of Minimum joint thickness Nominal diameter copper pipe jointed mm mm 3 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 than lubricating oils used in the installed air water heat pump 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 seal 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 FILE NO SVM 10001 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 conven tional flare tool Flare proces
25. TOSHIBA CARRIER THAILAND CO LTD 144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAM BOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND
26. and Indication Clock Frequency Oscillator Circuit FILE NO SVM 10001 M C U Indoor Unit Control Unit Functions Cold draft preventing Function 3 minute Delay at Restart for Compressor Fan Motor Starting Control pa Processing Temperature Processing Louver Motor Drive Control Motor Control Louver Motor Indoor Fan Timer Serial Signal Communication Power Supply Circuit Converter D C circuit Noise Filter From Outdoor Unit 220 240V 50Hz REMOTE CONTROLLER Clean Function Serial Signal Transmitter Receiver Serial Signal Communication Operation Command and Information Remote Controller Operation 0 Operation Mode Selection AUTO COOL DRY HEAT Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting ECO Hi POWER COMFORT SLEEP QUIET Indoor Fan Motor Infrared Rays 36 7kHz RAS 16SKV2 E Room Temperature Sensor Infrared Rays Signal Receiver and Indication Heat Exchanger Sensor TC Ta Initializing Circuit J Indoor Unit Control Unit Functions Cold draft preventing Function e 3 minute Delay at Restart for Compressor Fan Motor Starting Control Processing lt Temperature Processing Timer Serial Signal Communication Clean Function FILE NO SVM 10001 Louver Motor Louver Motor
27. block 2 and 3 replace inverter P C board If signal stops between indoor terminal block 2 and 3 replace indoor P C board Compressor does not rotate Current protective circuit does not operate when a specified time passed after compressor had been activated All off Displayed when error is detected Trouble on compressor Trouble on wiring of compressor Missed phase Discharge temp exceeded 117 C All off Displayed when error is detected Check dischage temp sensor TD Gas leakage Trouble on P M V Break down of compressor All off Displayed when error is detected Check power voltage 220 230 240 V 1096 Overload operation of refrigera tion cycle Check installation condition Short circuit of outdoor diffuser 4 way valve inverse error TC sensor value lowered during heating operation Operation continues 72 Check 4 way valve operation FILE NO SVM 10001 11 5 Judgment of Trouble by Every Symptom 11 5 1 Indoor Unit Including Remote Controller 1 Power is not turned on Does not operate entirely lt Primary check gt 1 Is the supply voltage normal 2 Is the normal voltage provided to the outdoor unit 3 Is the crossover cable connected properly 4 Is the fuse F01 blown RAS 10SKV2 E and RAS 13SKV2 E Operation Check Item Considerable principle cause NO Is OPERATION indicator f
28. lt Heating operation gt lt Heating operation gt 30 minutes i Compressor 1 Setting the compressor speed to L Max aHz the temperature zone in which the operation can be performed with Max cHz is gradually widened after 30 minutes passed when starting ECO operation 2 The indoor fan speed is depend on presetting and can change every speed after setting ECO operation B zone a to cHz Room temp Set temp 10SKV2 E 13SKV2 E 16SKV2 E 0 FILE NO SVM 10001 Operation flow and applicable data etc Description 10 Temporary Pressing RESET button starts the temporary opera operation tion of AUTO operation When keeping RESET button pressed for 10 seconds or more the temporary COOL operation is performed Filter lamp ON YES Press RESET button NO Did you press RESET button NO for 3 seconds or more YES Did you press RESET button for 10 seconds or more NO Switch to AUTO RESTART control Temporary AUTO operation YES Temporary COOL Operation 11 Discharge temperature control Td value Control operation Judges as an error and stops the compressor Reduce the compressor speed Reduce slowly compressor speed Keeps the compressor speed If the operation is performed with lower speed than one commanded by the serial signal speed is slowly raised up to the commanded speed Operates with speed comm
29. Battery life Is operation possible when setting the temporary switch of the air conditioner main unit to TEST RUN or TEMPORARY AUTO Can any signal tone be heard in a transistor NO indicator light Is there any beep and operation by take off batteries Push the 0 button Dose the transmission YES radio when transmitting within 5 cm distance from the radio P C board is failure Replace P C board Keep the air conditioner away from thyristor fluorescent light Replace the batteries Avoid direct Normal sunlight Remote control is failure Replace remote control Note Atter batteries replacement short circuit the metal terminal at the side of the battery compartment 79 FILE NO SVM 10001 11 5 2 Wiring Failure Interconnecting and Serial Signal Wire 1 Outdoor unit does not operate 1 Is the voltage between and Q of the indoor terminal block varied Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow ing diagram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment Terminal block at indoor side Red O O J S5277G or equivalent G or J type S5277G Diode with rated voltage of 400V White or more is acceptable D Terminal block Tester
30. COMFORT SLEEP Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase For heating operation the set temperature will decrease SLEEP TIMER OPERATION To start the sleep timer OFF timer operation Press SLEEP Select 1 3 5 or 9 hrs for OFF timer operation 50 FILE NO SVM 10001 9 4 3 Name and Functions of Indications on Remote Controller Display All indications except for the clock time indicator are displayed by pressing the 5 button 11 1 Transmission mark This transmission mark A indicates when the remote controller transmits signals to the indoor unit 2 Mode indicator Indicates the current operation mode AUTO Automatic control A Auto changeover control 2x Cool Dry XX Heat 3 Temperature indicator Indicates the temperature setting 17 C to 30 C 4 FAN speed indicator Indicates the selected fan speed AUTO or five fan speed levels LOW _ LOW MED _ m HIGH _ Lamm Can be shown Indicates AUTO when the operating mode is either AUTO or Dry C 0 11 C PM UCE ELEI auto HiPOWER 5 TIMER and clock time indicator The time setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation 6 Hi POWER indicator
31. FILE NO SVM 10001 2 2 Specification Unit model RAS 16SKV2 E RAS 16SAV2 E Cooling capacity Cooling capacity range Heating capacity Heating capacity range Electric Operation mode characteristic 0 24 0 22 Running current 6 81 6 24 Power consumption 1485 Power factor C Starting current COP Cooling Heating i Cooling Heating dB A 40 40 Low a Dimension i mm Net weight O 9 O Outdoor unit Unit model RAS 16SAV2 E Dimension i i C Compressor Motor output Piping Gas side m 212 7 Wiring connection uka a Cooling Heating Indoor unit Installation plate Wireless remote controller Remote controller holder CONES 550 780 290 39 750 1 Pan head wood screw 2 23 1 x 16L Outdoor unit Drain nipple Water proof rubber cap N The specification may be subject to change without notice for purpose of improvement 2 3 Operation Characteristic Curve lt Heating gt Current A lt Cooling gt 10 T T T T T T Qi obo ce cole esie es axa ees RENE RAS 16SKV2 E 7 Re l a eee is Ae tn eue i itp nete RAS 13SKV2 E lt DP Rae a oe Se ae mm D see ee ee SES he
32. Flare 6 35mm For 16 series Flare 12 7mm 84 5 621 84 5 235 235 215 215 Minimum distance ma 1M _ L Ny distance Installation plate outline zd6 4 2 Outdoor Unit I A 28 108 125 e H15 1 o 8 h a U i hole R5 5 _ ES l c A d 2 911 x 14 Hole E A detail Drawing Back leg 25 Drain outlet FAN GUARD 436 550 275 For 8 10 anchor bolt TOSHIB FILE NO SVM 10001 918 oO 9 6 hole 36 R15 11x14 hole 50 B Detail Drawing Front leg COVER PV IN Electrical part cover Installation dimension 17 290 C T T IE T1 Lt Liquid side Flare 6 35 Gas side 10 13 Flare 9 52 a 16 Flare 12 7 S n 2
33. Gray White 43 to 490 Gray Orange 43 to 490 Red Yellow 43 to 490 Red Blue 43 to 490 Under 20 C Outdoor temperature sensor TO discharge temperature sensor TD suction temperature sensor TS outdoor heat exchanger temperature sensor TE Disconnect the connector and measure resistance value with the tester Normal temperature 100 20 7 12 6 SOT I um 10 0 7 9 4 5 88 FILE NO SVM 10001 11 8 5 Checking Method for Each Part Part name Checking procedure Electrolytic capacitor 1 Turn OFF the power supply breaker For raising pressure smoothing 2 Discharge all three capacitors completely 3 Check that safety valve at the bottom of capacitor is not broken 4 Check that vessel is not swollen or exploded 5 Check that electrolytic liquid does not blow off 6 Check that the normal charging characteristics are show in continuity test by the tester Case that product is good Pointer swings once and returns slowly When sce bubs performing test once again Soldered Under another polarity the surface o pointer should return Heat sink IGBT side C12 C13 C14 500uF or 760uF 400V Converter module 1 Turn OFF the power supply breaker 2 Discharge all three capacitors completely 3 Check that the normal rectification characteristics are shown in continuity test by the tester Diode check Re
34. P t gt O gt ea ee a power supply cord and plug must be used NOTE Perform wiring work being sure the wire length is Fig 10 3 4 long enough 5mm dia hole 10 3 4 Wiring Connection How to connect the connecting cable Mounting screw 4 25L Wiring the connecting cable can be carried out without removing the front panel PER local parts 1 Remove the air inlet grille Open the air inlet grille upward and pull it toward you 2 Remove the terminal cover and cord clamp Fig 103 5 3 Insert the connecting cable or as according to local regulations codes into the pipe hole on the wall CANON 4 Pull the connecting cable through the cable slot Failure to securely install the unit may result in on the rear panel so that it protrudes about personal injury and or property damage if the 15 cm out of the front unit falls 5 Insert the connecting cable fully into the terminal block and secure it tightly with screws In case of block brick concrete or similar type 6 Tightening torque 1 2 Nem 0 12 walls drill 5 mm dia holes in the wall Insert clip anchors for the 2 mounting screws 8 7 Secure the connecting cable with the cord clamp Attach the terminal cover rear plate bushing and NOTE air inlet grille on the indoor unit Install the installation plate using mounting screws between 4 to 6 being sure to secure all four corners 57 CAUTION Be sure
35. adjust the open degree of valve so that it is in the range of set tempera ture Discharge temp control 4 When defrost operation is performed the open degree of valve is adjusted accord ing to each setup conditions during Move to preparation for defrost and during defrost initial position operation 4 way valve is inversed 5 To turn off the compressor while the air conditioner stops by control of the Compressor ON thermostat or by remote controller adjust the open degree of valve to the setup Td value before stop of the compressor PMV open degree control Stop by Room temp sensor remote controller Ta sensor control Power OFF Defrost SH Super Heat amount Ts Temperature of suction pipe of the compressor Tc or Te Heat exchanger temperature at evaporation side PMV Pulse Modulating Valve 41 FILE NO SVM 10001 em Operation flow and applicable data etc Description 13 Self Cleaning 1 Purpose function The Self Cleaning operation is to minimize the growth of mold bacteria etc by running the fan and drying so as to keep the Unit now performing cooling or dry operation inside of the air conditioner clean Self Cleaning operation When the cooling or dry operation shuts down the unit automatically starts the Self Press STOP button Cleaning operation which is then performed for the specified period based on duration of the operation which was perform
36. after it is turned on to prevent a cold air from blowing in RAS 10SKV2 E and RAS 13SKV2 E Turn off power supply once and turn it on again YES Does fan motor continue to operate NO Start to operate indoor unit in cooling operation at airflow level LOW Control P C board failure Dose AC120V or Hosp higher voltage apply to between red and black lead P C board of the motor Does indoor fan operate YES Change airflow level to HIGH Turn OFF the power Is it possible to rotate cross flow fan by hand properly Replace bearing YES Turn OFF the power Stop the operation When rotating the cross flow fan by hand at the operation stop condition is the rotation signal DC 12V OV detected between 2 Purple lead and 3 Blue lead of the motor connector CN33 1 pulse 1 revolutio Y YES Motor circuit D301 IC31 Q301 12V power circuit T01 failure Replace the P C board a5 Is it possible to change airflow level to HIGH Replace the fan motor Fan motor operates normally RAS 16SKV2 E Turn off power supply once and turn it on again Y Is it possible to detect C 1V or more between NO Does fan motor Y continue to operate and of motor bU o CN31 YES Start to operate ind
37. air conditioner uses an exclusive circuit An insufficient circuit capacity or inappropriate installation may cause fire When wiring use the specified cables and connect the terminals securely to prevent external forces applied to the cable from affecting the terminals Be sure to provide grounding Do not connect ground wires to gas pipes water pipes lightning rods or ground wires for telephone cables Conform to the regulations of the local electric company when wiring the power supply Inappropriate grounding may cause electric shock CAUTION Exposure of unit to water or other moisture before installation may result in an electrical short Do not store in a wet basement or expose to rain or water Do not install in a place that can increase the vibration of the unit Do not install in a place that can amplify the noise level of the unit or where noise or discharged air might disturb neighbors To avoid personal injury be careful when handling parts with sharp edges Perform the specified installation work to guard against an earthquake If the air conditioner is not installed appropriately accidents may occur due to the falling unit For Reference If a heating operation would be continuously performed for a long time under the condition that the outdoor temperature is 0 C or lower drainage of defrosted water may be difficult due to freezing of the bottom plate resulting in a trouble of the cabinet or fan It is rec
38. box arrow OA 7 Pull the inverter box upward 8 Disconnect connectors of various lead wires As each connector has a lock mecha nism 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 101 Part name Control board assembly Procedure 1 Disconnect the leads and connectors connected to the other parts from the control board assembly 1 Leads 3 leads black white orange connected to terminal block Lead connected to compressor Disconnect the connector 3P Lead connected to reactor Disconnect the two connectors 2P 2 Connectors x8 CN300 Outdoor fan motor 3P white See Note CN701 4 way valve 2P yellow CN600 TE sensor 2P white CN700 PMV 6P white CN603 TS sensor 3P white CN601 TD sensor 3P white CN602 TO sensor 2P white These connectors have a disconnect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the PC board base Remove the heat sink and control board assembly while keeping them screwed together NOTE Disengage the four claws of the P C board base hold the heat sink and lift to remove it 3 Remove the two fixing screws used to secure the heat
39. cover to the corner of the front cabinet This line shall be pavallel to the front cabinet This part shall cover the gap between the inverter box and the front cabinet How to mount the water proof cover FILE NO SVM 10001 Part name Procedure Remarks Front cabinet 1 Detachment 1 Perform step 1 in 2 Remove the fixing screws ST1T 4 x 10L 2 pcs used to secure the front cabinet and inverter cover the screws 6 1 4 x 10L 4 pcs used to secure the front cabinet at the bottom and the fixing screws ST1T 4 10L 2 pcs used to secure the motor base The front cabinet is fitted into the side cabinet left at the front left side so pull up the top of the front cabinet to remove it 2 Attachment 1 Insert the claw on the front left side into the side cabinet left 2 Hook the bottom part of the front right side onto the concave section of the P bottom plate Insert the claw of the side AN cabinet right into the square hole in the J In front cabinet Claw Square 3 Return the screws that were removed i above to their original positions and attach them oa E Concave section 100 FILE NO SVM 10001 Part name Procedure Remarks Inverter 1 Perform work of item 1 in D assembly 2 Remove screw ST1T 4 x 10L 2 pcs of the upper part of
40. edge of the PC board and do not apply force to the parts 3 When connecting or disconnecting the connectors on the P C board hold the whole housing Do not pull at the lead wire 2 Inspection procedures 1 When a PC board is judged to be defective check for disconnection burning or discoloration of the copper foil pattern or this P C board 2 The PC board consists of the following 2 parts a Main P C board part DC power supply circuit Indoor fan motor control circuit CPU and peripheral circuits buzzer and Driving circuit of louver b Indication unit of infrared ray receiving infrared ray receiving circuit LED To check defect of the P C board follow the procedure described below 83 3 Check procedures RAS 10 13SKV2 E Procedure Turn off the power supply breaker and remove the P C board assembly from electronic parts base Remove the connecting cables from the terminal block Table 11 8 1 Check points Check whether or not the fuse F01 is blown FILE NO SVM 10001 Impulse voltage was applied or the indoor fan motor short circuited Remove the connector of the motor and turn on the power supply breaker If OPERATION indicator flashes once per second it is not necessary to check steps 1 to 3 in the right next column Check power supply voltage 1 Between No 1 and No 3 of CN01 AC 220 240V 2 Between and of C27 DC 310 340V Between 12V and GND Bet
41. eo wi EM j 51g BLK P06 92005205 05005205 Tit RED C A Reet P C BOARD R324 FAN MOTOR P25 AN MCC 5009 YEL P24 Pal 1 R220 R320 P23 AAA YEL P22 h sz R219 R319 ANY Lv nm BRW P20 f e P354 L03 C13 FUSE L01 VARISTOR Oe i P RAWI 1 e P34 X Lt rae pem v m m 7 CN603 117 4 OO TS v SURGE SUCTION PIPE 5 ci C a ABSORBER BO TEMP SENSOR pon re LALA N CN602 111 CA POWER VARISTOR p Ex F01 OUTDOOR P19 ten FUSE 3 3 TEMP SENSOR DB02 AC250V ORN BC P POS PO1 Po2 01 2 nes 8 ORN BLK wur po ne a P11 RELAY coschitkee PIPE E M 9 6 t ao TEMP SENSOR REACTOR 212 eH oo Nie Q404 condenser PIPE 4 TEMP SENSOR ps2 CN701 P33 P31 P30 1 PUR 15 d 2 COLOR IDENTIFICATION 9 Y WHIWHITE sl POWER BRW BROWN SUPPLY ORN ORANGE 220 240V 50Hz YELYELLOW REACTOR 220V 60Hz PUR PURPLE Indoor Terminal Block 1213 POWER SUPPLY From outdoor Unit SHEET METAL CNO2 T3 15A 250VAC Fuse F01 AAD 12 Heat Exchanger Sensor qo TARO CANADY AA Thermo Sensor TA 2 CN61 WH TUN Heat O O MCC 5044
42. etc Types of flux Noncorrosive flux Generally it is a compound of borax and boric acid It is effective in case where the brazing tem perature is higher than 800 C 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 FILE NO SVM 10001 3 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 N2 flow Never use gas other than Nitrogen gas 1 Brazing method to prevent oxidation 1 Attach a reducing valve and a flow meter to the Nitrogen gas cylinder 2 Use copper pipe to direct the piping mate rial and attach a flow meter to the cylinder 3 Apply a seal onto 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 2kgf cm by means of the reducing valve 6 After performing the st
43. of Indications on Remote Controller 51 29 FILE NO SVM 10001 Item Operation flow and applicable data etc 1 Basic Operation control operation Receiving the user s operation condition setup the operation statuses of indoor outdoor units are controlled 1 The operation conditions are selected by the remote controller as shown in the below 2 A signal is sent by ON button of the remote controller 3 The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below 4 The indoor controller controls the indoor fan motor and louver motor 5 The indoor controller sends the operation command to the outdoor controller and sends receives the control status with a serial signal 6 The outdoor controller controls the operation as shown in the left and also controls the compres sor outdoor fan motor 4 way valve and pulse Modulating valve Remote controller Selection of Control contents of remote controller operation conditions ON OFF Air conditioner Air purifier Operation select COOL HEAT AUTO DRY Air direction Swing Air volume select AUTO LOW LOW MED MED HIGH ECO e COMFORT SLEEP ON timer setup e QUIET OFF timer setup e PRESET Hi POWER ONE TOUCH Indoor unit Signal receiving Indoor unit control Command signal generating function of Indoor unit control indoor unit operation
44. of troubles 11 3 Judgment by Flashing LED of Indoor Unit While the indoor unit monitors the operation status of the air conditioner if the protective circuit operates the contents of self diagnosis are displayed with block on the indoor unit indication section Table 11 3 1 Block display Description for self diagnosis OPERATION Green Indoor indication Flashing display 1 Hz lamp flashes Power failure when power is ON OPERATION Green Flashing display 5 Hz Protective circuit operation for indoor P C board Which lamp does flash OPERATION Green TIMER Yellow Flashing display 5 Hz Protective circuit operation for connecting cable and serial signal system OPERATION Green FILTER Orange Protective circuit operation for outdoor P C board Flashing display 5 Hz OPERATION Green TIMER Yellow Protective circuit operation for others FILTER Orange including compressor Flashing display 5 Hz NOTES 1 The contents of items B and C and a part of item E are displayed when air conditioner operates 2 When item B and C and item B and a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing _ 69 FILE NO SVM 10001 11 4 Self Diagnosis by Remote Controller Check Code 1 If the lamps are indicated as shown B to E in Table 11 3 1 execute the self diagnosis by the re
45. return serial signal does not stop between indoor terminal 2 and 3 replace inverter P C board If signal stops between indoor terminal 2 and 3 replace indoor PC board FILE NO SVM 10001 Block distinction Operation of diagnosis function Air i conditioner Remarks sudgment and action status Check code Block Cause of operation Outdoor P C Inverter over current All off Displayed when Even if trying operation again all board protective circuit operates Short time error is detected operations stop immediately Replace P C board Position detect circuit error or short circuit between windings of compressor All off Displayed when error is detected 1 Even if connecting lead wire of compressor is removed position detect circuit error occurred Replace P C board Measure resistance between wires of compressor and perform short circuit Replace compressor Current detect circuit All off Displayed when error error is detected Even if trying operation again all operations stop immediately Replace P C board 1 Check sensors TE TS 2 Check P C board _ om Being out of place All off disconnection or short circuit of the outdoor heat exchanger sensor TE or suction temp sensor Ts Displayed when error is detected _ e Disconnection or short All off circuit of discharge temp senso
46. room temperature after selecting an operation mode COOL HEAT reselect an operation mode DRY operation DRY operation is performed according to the difference between room temperature and the setup temperature as shown below In DRY operation fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons Fan speed sgi 1 Detects the room temperature Ta when the DRY operation started 2 Starts operation under conditions in the left figure according to the temperature difference between the room tempera ture and the setup temperature Tsc Setup temperature Tsc Set temperature on remote controller Ts 0 0 to 1 0 3 When the room temperature is lower 1 C or less than the setup temperature turn off the compressor 2 Indoor fan motor control COOL ON Fan speed setup AUTO Operation flow and applicable data etc lt ln cooling operation gt This operation controls the fan speed at indoor unit side The indoor fan cross flow fan is operated by the phase control induction motor The fan rotates in 5 stages in MANUAL mode and in 5 stages in AUTO mode respec tively Table 1 MANUAL Indication Fan speed L W6 L aa L M 2 M W9 M 2 Air volume AUTO M WB WC 3 Fan speed M L x 3 4 L 4 Fan speed M L x 2 4 L
47. sink and control board assembly 4 Mount the new control board assembly When mounting the new control board assembly ensure that the P C board is inserted properly into the P C board support groove 102 FILE NO SVM 10001 Remarks CN603 n CN701 m CN601 600 CN700 CN602 CN300 CN300 CN701 CN600 and CN603 are connectors with locking mechanisms as such to disconnect them they must be pressed in the direction of the arrow while pulling them out Z P C board base P C board Part name Side cabinet 1 Side cabinet right 1 Perform step 1 in and all the steps in Side cabinet left Procedure 2 Remove the fixing screw ST1T 4 10L 4 pcs used for securing the side cabinet to the bottom plate and valve fixing panel 1 Perform step 1 in 2 Remove the fixing screw ST1T 4 10L 1 pc used to secure the side cabinet left onto the heat exchanger 3 Remove the fixing screw ST1T 4 10L 2 pcs used for securing the side cabinet to the bottom plate and heat exchanger Detail A Detail B FILE NO SVM 10001 Remarks Hook the claw noto Pa the bottom plate The back body section hooked onto the bottom plate here Detail C Fan motor 1 Perform work of item 1 of D and Q 2 Remove the flange nut fixing the fan motor and the propeller Flange nut is loosened b
48. used Copper pipes and joints suitable 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 pres sure higher than when using R22 it is necessary to choose adequate materials Thicknesses of copper pipes used with R410A are as shown in Table 3 2 1 Never use copper pipes thinner than 0 8 mm even when it is available on the market FILE NO SVM 10001 Table 3 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 3 2 3 to 3 2 6 below b Socket Joints
49. where high frequency waves are likely to be generated such as from audio equipment welders and medical equip Fig 10 4 1 mic 10 4 2 Draining the Water Holes are provided on the base plate of the outdoor unit to ensure that the defrost water produced during heating operations is drained off efficiently If a centralized drain is required when installing the unit on a balcony or wall follow the steps below to drain off the water 1 Proceed with water proofing by installing the water proof rubber caps in the 2 elongated holes on the base plate of the outdoor unit How to install the water proof rubber caps 1 Place four fingers into each cap and insert the caps into the water drain holes by pushing them into place from the underside of the base plate 2 Press down on the outer circumferences of the caps to ensure that they have been inserted tightly Water leaks may result if the caps have not been inserted properly if their outer circumfer ences lift up or the caps catch on or wedge against something S 0 Water proof rubber caps supplied with the outdoor unit Fig 10 4 2 2 Install the drain nipple and a commercially available drain hose with 16 mm inside diam eter and drain off the water For the position where the drain nipple is installed refer to the installation diagram of the indoor and outdoor units Check that the outdoor unit is horizontal and ro
50. 0 threads per inch In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite side of flare nuts has been changed for copper pipes with nominal dimensions 1 2 and 5 8 New tools for R410A New tools for R410A Applicable to R22 model FILE NO SVM 10001 Changes Gauge manifold x As pressure is high it is impossible to measure by means of conventional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed Charge hose In order to increase pressure resisting strength hose materials and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size Electronic balance for refrigerant charging As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur Torque wrench nominal diam 1 2 5 8 The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 Flare tool clutch type By increasing the clamp bar s receiving hole strength of spring in the tool has been improved Gauge for projection adjustment Used when flare is made by using conventional flare tool Vacuum pump adapter Connected to conventional vacuum pump It is necessary to use an a
51. 3 The rotating position and speed of the motor are detected by the electromotive force occurred on Ts Ta the motor winding with operation of the compressor 4 According to the difference resulted from comparison of the correction value of Hz signal with Detection of electromotive force the present operation Hz the of compressor motor winding inverter output and the commuta tion timing are varied 5 Change the compressor motor Detection of motor speed and rotor position speed by outputting power to the compressor The contents of control operation are same in cooling operation and heating Inverter output change operation Commutation timing change Set temp Ts Room temp Ta Correction of Hz signal Correction value of Hz signal lt Operating Hz Change of compressor speed 5 Current release This function prevents troubles on the electronic parts of the 1 The input current of the outdoor control compressor driving inverter unit is detected in the inverter This function also controls drive circuit of the compressor section of the outdoor unit speed so that electric power of the compressor drive circuit 2 According to the detected does not exceed the specified value outdoor temperature the specified value of the current is selected 3 Whether the current value exceeds the specified value or Setup of current release point not is judged Outdoor unit inverter main Outdoor temp T
52. 3SKV2 E PIPE SHIELD FOR RAS 16SKV2 E HOLDER REMOTE CONTROL MOTOR CORD INSTALLATION PLATE HOLDER SENSOR PIPE HOLDER 109 206 Part No 43T03360 43T39327 43T39328 43T39329 43T09409 43T79313 43T44402 43T44403 43T00488 43T80318 43T80319 43T09410 43T62328 43T69615 FILE NO SVM 10001 2 ectric Parts Assembly Description BACK BODY ASSEMBLY BEARING BASE MOTOR BAND LEFT MOTOR BAND RIGHT HORIZONTAL LOUVER CAP DRAIN REFRIGERANT CYCLE ASSEMBLY FOR RAS 10 13SKV2 E REFRIGERANT CYCLE ASSEMBLY FOR RAS 16SKV2 E PANEL SERVICE ASSEMBLY AIR FILTER R AIR FILTER L GRILLE OF AIR INLET ORIGINAL WHITE TERMINAL COVER REMOTE CONTROLLER WIRELESS FILE NO SVM 10001 13 3 Outdoor Unit Z is N For Model RAS 10SAV2 E RAS 13SAV2 E 13 a 8 31 HOLDER SENSOR TE For PIPE OD 6 35 mm 32 HOLDER SENSOR TD For PIPE OD 8 00 mm 33 HOLDER SENSOR TS For PIPE OD 9 52 mm For Model RAS 16SAV2 E Description 43T00468 FRONT CABINET 43T47333 BONNET 9 52 DIA 43T00459 LEFT CABINET FOR RAS 16SAV2 E 43742327 BASE PLATE ASSEMBLY 43T00448 FIXING PLATE VALVE 43T00452 UPPER CABINET 43T00451 RIGHT CABINET ASSEMBLY 43T19329 FAN GUARD 43146347 BODY PMV 43T19330 PACKED VALVE COVER 43763332 COIL PMV 43T62325 ELECTRIC PART COVER 43746351 REACTOR 43741401 COMPRESSOR FOR RAS 10 13SAV2 E FOR RAS 16SAV2 E 43758306 R
53. 8 2 Check points Check whether or not the fuse F01 is blown FILE NO SVM 10001 Impulse voltage was applied or the indoor fan motor short circuited Remove the connector of the motor and turn on the power supply breaker If OPERATION indicator flashes once per second it is not necessary to check steps 1 to 3 in the right next column Check power supply voltage 1 Between No 1 and No 3 of CN01 AC 220 240V 2 Between and of C03 DC 310 340V Between of C124 and output side of IC13 DC 15V 4 Between 12V and GND 5 Between 5V and GND The terminal block or the crossover cable is connected wrongly The capacitor C01 line filter L01 resistor R02 or the diode DB01 is defective 1 11 IC13 and T101 are defective IC11 and T101 are defective IC11 IC12 and T101 are defective Push O button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between CN51 and No 1 of CNO1 DC 15 60V IC51 and IC52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FILTER PRE DEF Hi POWER are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN21 is defective Push button once to start the unit Shorten the restart delay timer Set the operation mode to C
54. Drive Control Indoor Fan Motor Control Indoor Fan Motor Clock Frequency Oscillator Circuit Power Supply Circuit Converter D C circuit From Outdoor Unit 220 240V 50Hz REMOTE CONTROLLER Serial Signal Communication Operation Command and Information Remote Controller Operation Operation Mode Selection AUTO COOL DRY HEAT Thermo Setting Fan Speed Selection ON TIMER Setting Louver AUTO Swing Louver Direction Setting EC Hi POWER COMFORT SLEEP OFF TIMER Setting QUIET D Infrared Rays 36 7kHz FILE NO SVM 10001 8 2 Outdoor Unit Inverter Assembly Joss iduoo JO OUI UE Joopino LINN HOOG L00 104409 Y O IN IQON SNd ov oq JOJeAu 1 L lt oq Jeue u aye L L 1 1 1 1 L 1lu uno L 1 1 1 Li 1 L jueuno JeAuq 9 Josues jueuno ZHINY PNOO KouenboJj UOn294102 40428 42019 JOOPU eBaeuosiq 041009 A W d uol ounj K
55. E NO SVM 10001 Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp Remote controller Refer to 11 5 1 5 Louver motor MP24Z3T Measure the resistance value of each winding coil by using the tester Under normal temp 25 C Position Resistance value 250 200 Indoor fan motor 11 8 4 Outdoor Unit Part name Compressor Model DA111A1F 20F1 16SAV2 E Model DA89X1C 23FZ 10SAV2 E Model DA89X1C 23FZ2 13SAV2 E Refer to 11 5 1 3 and 4 Checking procedure Measure the be ax value of each winding by using the tester Position Resistance value DA111A1F 20F1 DA89X1C 1F 23FZ Red White White Black Black Red 0 88 to 0 980 1 04 to 1 160 White Black Under 20 Outdoor fan motor Model ICF 140 43 4R Measure the resistance value of winding by using the tester Red Position Resistance value Red White 20 to 220 White Black 20 to 220 Black Red 20 to 220 4 way valve coil Model VHV 10SAV2 E 16SAV2 E Model STF 13SAV2 E Measure the resistance value of winding by using the tester Resistance value Pulse motor valve coil Model C12A 01 A 10SAV2 E 16SAV2 E Model CAM MD12TCTH 2 13SAV2 E 1435 1440 Measure the resistance value of winding by using the tester Under 20 C Position Resistance value
56. EACTOR 43741420 COMPRESSOR Made in China FOR RAS 16SAV2 E FOR RAS 10 13SAV2 E 43120319 PROPELLER FAN 43743410 CONDENSER ASSEMBLY 43121375 FAN MOTOR FOR RAS 10SAV2 E 43147001 NUT FLANGE 43743412 CONDENSER ASSEMBLY 43797001 NUT FOR RAS 16SAV2 E 43149335 RUBBER CUSHION 43743434 CONDENSER ASSEMBLY 43146343 4 WAY VALVE FOR RAS 13SAV2 E 43763320 4 WAY VALVE COIL ASSEMBLY 43146332 VALVE PACKED 6 35 DIA 43163319 HOLDER SENSOR 43746331 VALVE PACKED 9 52 DIA 43179305 DRAIN NIPPLE FOR RAS 10 13SAV2 E 43139333 MOTOR BASE CONNECTION PLATE 43146335 VALVE PACKED 12 7 DIA 43763318 HOLDER SENSOR FOR RAS 16SAV2 E 43763317 HOLDER SENSOR 43747331 BONNET 6 35 DIA 43763316 HOLDER SENSOR 43747332 BONNET 9 52 DIA 43119331 FIN GUARD FOR RAS 10 13SAV2 E Oo N 110 FILE NO SVM 10001 1 13 4 Outdoor Unit TE Sensor 26 TS Sensor 26 TO Sensor 26 TD Sensor 24 Location Location Description Description 43762320 HEATSINK Made in Thailand 43160392 TERMINAL 5P For RAS 10 13SAV2 E 43160326 FUSE 43762331 HEATSINK Made in Thailand 43160377 TEMPERATURE SENSOR For RAS 16SAV2 E 43150304 SENSOR HEAT EXCHANGER 43169780 PC BOARD For RAS 10SAV2 E Made in Thailand 43169783 PC BOARD For RAS 16SAV2 E 43762313 BASE PLATE PC Made in Thailand 43769815 PC BOARD For RAS 13SAV2 E zs
57. OOL Set the fan speed level to AUTO Set the preset temperature much lower than the room temperature The unit com pressor operates continuously in the above condition 1 Check whether or not the compressor operates 2 Check whether or not the OPERATION indicator flashes The temperature of the indoor heat exchanger is extremely low The connection of the heat exchanger sensor is loose The connector is disconnected CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C board is defective If the above condition No 5 still continues start the unit in the following condition Set the operation mode to HEAT Set the preset temperature much higher than room tem perature Check whether or not the compressor operates Check whether or not the OPERATION indicator flashes The temperature of the indoor heat exchanger is extremely high The connection of the heat exchanger sensor short circuited CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C board is defective Connect the motor connector to the motor and turn on the power supply Start the unit the following condition Set the fan speed level to HIGH The unit compressor operates continuously in the above condition in No 5 Check it is impossible to detect the voltage DC 15V
58. SOR REACTOR 212 E L AA G Q404 1 iN condenser PIPE P32 l CN701 TEMP SENSOR P33 P31 P30 BH e BLK PUR 7 COIL COLOR IDENTIFICATION FOR TE BLKBLACK WHLWHITE X 3 AWAY POWER BLU BLUE BRW BROWN VALVE SUPPLY RED RED ORN ORANGE 220 240V 50Hz GRY GRAY YEL YELLOW 220V 60Hz PNK PINK PUR PURPLE A AL Indoor Terminal Block 1 Heat Exchanger POWER SUPPLY x lt From outdoor Unit m T GRN amp YEL O00 CNO1 CN51 AA L 4 A i f lt 3 3 X lt AA X N AA 7 o 6X5 lt AC Motor uo AA CN31 gt V E BS oo Fan Motor 2 2 i22 EL 3 3 Heat Exchanger Sensor CN33 Tc QM SLT W212 e 991 313 Thermo Sensor cnet Varistor Line 4 4 TA WH _ Filter OO CN32 WH CN22 WH gt s E B 3 ax o x lt gt m So 2 Color indication o e P BRW BROWN 3 YEL YELLOW 5 BLK BLACK a RED RED BLU BLUE WHI WHITE GRN amp YEL Main PC Board WP 020 18 GREEN amp YELLOW 5 2 RAS 16SKV2 E RAS 16SAV2 E FILE NO SVM 10001 COMPRESSOR lt pqyq RED P04 CN300 ys BLK OON CM 1 1 WHIZ POS
59. TER indicator is not lit the indoor unit will start the automatic operation 45 FILE NO SVM 10001 9 3 Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down The operation will resume without warning three minutes after power is restored This function is not set to work when shipped from the factory Therefore it is necessary to set it to work 9 3 1 How to Set the Auto Restart Function To set the auto restart function proceed as follows The power supply to the unit must be on the function will not set if the power is off Press the RESET button located in the center of the front panel continuously for three seconds The unit receives the signal and beeps three times The unit then restarts operating automatically in the event of power supply being accidentally shut down When the unit is standby Not operating Operation Motions Press RESET button for more than The unit is on standby three seconds Less than 10 seconds The unit starts to operate The green indicator is on After approx three seconds The unit beeps three times The green indicator flashes and continues to operate for 5 seconds If the unit is not required to operate at this time press RESET button once more or use the remote co
60. THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAUSING A FIRE HAZARD PLACE THE UNIT WELL AWAY MORE THAN 2 M FROM HEAT SOURCES SUCH AS RADIATORS HEAT REGISTORS FURNACE STOVES ETC WHEN MOVING THE AIR CONDITIONER FOR INSTALLATION IN ANOTHER PLACE BE VERY CARE FUL NOT TO ALLOW THE SPECIFIED REFRIGERANT R410A TO BECOME MIXED WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CIRCUIT IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT THE GAS PRESSURE IN THE REFRIGERATION CIRCUIT WILL BECOME ABNORMALLY HIGH AND IT MAY RESULT IN THE PIPE BURSTING AND POSSIBLE PER SONNEL INJURIES IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE SERVICE WORK AND THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED SUCH AS BY FIRE GENERATION OF POISONOUS GAS MAY RESULT WARNING Never modify this unit by removing any of the safety guards or bypass 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 After the installation work confirm that refrigerant gas does not leak If refrigerant gas leaks into the room and flows near a fire source such as a cooking range noxious gas may generate The electrical work must be performed by a qualified electrician in accordance with the Installation Manual Make sure the
61. TO S H FILE SVM 10001 2 SERVICE MANUAL AIR CONDITIONER SPLIT TYPE Indoor Unit Outdoor Unit lt High Wall Heat Pump Type lt Heat Pump Type gt RAS 10SKV2 E RAS 10SAV2 E RAS 13SKV2 E RAS 13SAV2 E RAS 16SKV2 E RAS 16SAV2 E Revised on Dec 2010 10 11 12 13 FILE NO SVM 10001 CONTENTS SAFETY PRECAUTIONS s ua aa Vue 3 SPECIFICATIONS uu asss aaa aae tr cv ck TV cu Dean i reci ru ue 5 REFRIGERANT 8 CONSTRUCTION VIEWS no at a naar pa 16 WIRING DIAGRAM 555353235555 Bex Ren Ra qe caen Ec Y rcc VER 18 SPECIFICATIONS OF ELECTRICAL PARTS 20 REFRIGERANT CYCLE DIAGRAM 21 CONTROL BLOCK DIAGRAN 25 OPERATION DESCRIPTION 28 INSTALLATION PROCEDURE u 52 HOW TO DIAGNOSE THE TROUBLE 66 HOW TO REPLACE THE MAIN 91 EXPLODED VIEWS AND PARTS
62. anded by the serial signal mA 1 When pressing RESET button the temporary AUTO operation starts 2 When keeping RESET button pressed for 3 seconds or more Pi Pi Pi sound is heard and AUTO RESTART control is changed 3 When keeping RESET button pressed for 10 seconds or more Pi sound is heard and the temporary COOL operation starts 4 If the filter lamp goes on press RESET button to go off the filter lamp and then press RESET button again 5 To stop the temporary operation press the button again 1 Purpose This function detects error on the refrigerating cycle or error on the com pressor and performs protective control Operation Control of the compressor speed The speed control is performed as described in the left table based upon the discharge temperature FILE NO SVM 10001 Operation flow and applicable data etc Description 12 Pulse This function controls throttle amount of the 1 When starting the operation move the Modulating refrigerant in the refrigerating cycle valve once until it fits to the stopper valve P M V According to operating status of the air conditioner Initialize control this function also controls the open degree of valve In this time Click sound may be with an expansion valve with pulse Modulation heard 2 Adjust the open degree of valve by super heat amount SH control 3 If the discharge temperature was exces sively up
63. arge Yes Refrigerant cylinder Refrigerant charge Yes Leakage detector Gas leakage check Yes Charging cylinder Refrigerant charge Note 2 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 Clamp meter 2 Thermometer 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 Also prepare the following equipments for other installation method and run check 1 3 Insulation resistance tester 4 Electroscope 1 Vacuum pump 4 Reamer 9 Hole core drill 265 Use vacuum pump by attaching 5 Pipe bender 10 Hexagon wrench vacuum pump adapter 6 Level vial Opposite side 4mm 2 Torque wrench For 06 35 29 52 7 Screwdriver 11 Tape measure 3 Pipe cutter 8 Spanner or Monkey wrench 12 Metal saw 12 FILE NO SVM 10001 3 4 Recharging of Refrigerant 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 xm When the compound gauges pointer has indicated 0 1 Mpa 76 cmHg
64. as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage circuits are contained inside this unit Proceed very carefully when conducting checks since directly touching the parts on the control circuit board may result in electric shocks 12 1 Indoor Unit Part name Procedures Remarks Front panel 1 Stop operation of the air conditioner and turn off its main power supply 2 Open the air inlet grille push the arm toward the outside and remove the grille 3 Remove the left and right air filters 91 Part name Front panel Procedures 4 Press PUSH part under the front panel and remove hooks of the front panel from the installation plate 5 Remove the front panel fixing screws 2 pcs 6 Take off three hooks of panel from rear side lt How to assemble the front panel gt FILE NO SVM 10001 Remarks Installation plate Front panel 2 Screws Three hooks 1 Press three center positions and two lower center positions of the air outlet and then hang the hanging hooks 3 pcs at the top side of the front panel to the rear plate 2 Tighten two screws Incomplete hanging or incomplete pressing may cause a dewdrops or generation of a fluttering sound 92 Part name Electric parts box assembly Procedures 1 Follow the proce
65. between 3 and 4 of the motor terminals The motor does not operate or the fan motor does not rotate with high speed But it is possible to receive the signal from the remote controller The motor rotates but vibrates strongly 85 The indoor fan motor is defective Protected operation of P C board The P C board is defective The connection of the motor connector is loose 11 8 2 Board Layout RAS 10 13SKV2 E ue o gt gt o lt gt ne c gt oS m E e ES 1 Sensor characteristic table Resistance value 0 10 20 30 40 50 Temperature GND 86 FILE NO SVM 10001 Discharge temp sensor Room temp sensor Heat exchanger temp sensor Outdoor temp sensor Suction temp sensor FILE NO SVM 10001 RAS 16SKV2 E 2 f CN22 CN21 1011 15 MCC 5045 01 SIDE 8 401 111 Q 2 8 SWRT 1 GND 12V 5V 1 Sensor characteristic table TD Discharge temp sensor TO Outdoor temp sensor TE Outdoor heat exchanger temp sensor TA TC TO TE TS TS Suction temp sensor 0 10 20 30 40 50 Temperature C Resistance value kQ 87 11 8 3 Indoor Unit Other Parts Part name Room temp TA sensor Heat exchanger TC sensor FIL
66. coat the surface with a paint or copper alloy and is relatively expensive though 2 When performing brazing again at time of it excels in solderability servicing use the same type of brazing filler 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 5 2 Flux 3 Low temperature brazing filler 1 Reason why flux is necessary Low temperature brazing filler is generally called By removing the oxide film and any foreign solder and is an alloy of tin and lead Since it is matter on the metal surface it assists the flow weak in adhesive strength do not use it for of brazing filler refrigerant pipes In the brazing process it prevents the metal surface from being oxidized By reducing the brazing filler s surface tension the brazing filler adheres better to the treated metal 14 Characteristics required for flux Activated temperature of flux coincides with the brazing temperature Due to a wide effective temperature range flux is hard to carbonize It is easy to remove slag after brazing The corrosive action to the treated metal and brazing filler is minimum It excels in coating performance and is harm less 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
67. cting revolution position of the compres sor motor the outdoor unit controller controls speed of the compressor motor by controlling output voltage of the inverter and switching timing of the supply power current transfer timing so that motors drive according to the operation command And then the outdoor unit controller transfers reversely the operating status information of the outdoor unit to control the indoor unit controller As the compressor adopts four pole brushless DC motor the frequency of the supply power from inverter to compressor is two times cycles of the actual number of revolution 1 Role of indoor unit controller The indoor unit controller judges the operation commands from the remote controller and assumes the following functions Judgment of suction air temperature of the indoor heat exchanger by using the indoor temp sensor TA sensor Judgment of the indoor heat exchanger tempera ture by using heat exchanger sensor TC sensor Prevent freezing control etc Louver motor control Indoor fan motor operation control LED Light Emitting Diode display control Transferring of operation command signal Serial signal to the outdoor unit Reception of information of operation status Serial signal including outside temp data to the outdoor unit and judgment display of error Air purifier operation control 2 Role of outdoor unit controller Receiving the operation command signa
68. d points 5 Be save to fully open the packed valves before operation J 63 Packed Valve handling precautions Open the valve stem all the way but do not try to open it beyond the stopper Securely tighten the valve stem cap with torque in the following table Gas side 012 7 mm 50 to 62 Nem 5 0 to 6 2 kgf m Gas side 29 52 mm 33 to 42 Nem 3 3 to 4 2 kgf m Liquid side 06 35 mm 14 to 18 Nem 1 4 to 1 8 1 1 Service port 14 to 18 Nem 1 4 to 1 8 Hexagonal wrench is required Fig 10 4 10 0 4 5 Wiring Connection Remove the valve cover the electric parts cover and the cord clamp from the outdoor unit Connect the connecting cable to the terminal as identified by the matching numbers on the terminal block of indoor and outdoor unit Insert the power cord and the connecting cable fully into the terminal block and secure it tightly with screws Insulate the unused cords conductors from water entering in the outdoor unit Locate them so that they do not touch any electrical or metal parts Secure the power cord and the connecting cable with the cord clamp Attach the electric parts cover and the valve cover on the outdoor unit Stripping length of connecting cable Terminal block Connecting cable Power cord Fig 10 4 11 FILE NO SVM 10001
69. dapter to prevent vacuum pump oil from flowing back to the charge hose The charge hose connecting part has two ports one for conventional refrigerant 7 16 UNF 20 threads per inch and one for R410A If the vacuum pump oil mineral mixes with R410A a sludge may occur and damage the equipment Gas leakage detector Exclusive for HFC refrigerant Incidentally the refrigerant cylinder comes with the refrigerant designation R410A and protector coating in the U S s ARI specified rose color ARI color code PMS 507 Also the charge port and packing for refrigerant cylinder require 1 2 UNF 20 threads per inch corresponding to the charge hose s port size 55 10 3 Indoor Unit 10 3 1 Installation Place A place which provides enough spaces around the indoor unit as shown in the diagram A place where there are no obstacle near the air inlet and outlet A place which allows easy installation of the piping to the outdoor unit A place which allows the front panel to be opened The indoor unit shall be installed so that the top of the indoor unit is positioned at least 2m in height Also avoid putting anything on the top of the indoor unit CAUTION Direct sunlight on the indoor unit wireless receiver should be avoided The microprocessor in the indoor unit should not be too close to r f sources For details see the owner s manual Remote controller
70. dure up to 3 in above 2 Remove screw of earth lead attached to the end plate of the evaporator 3 Remove the lead wire cover and remove connector for the fan motor and connec tor for the louver motor from the electric parts box assembly 4 Pull out TC sensor from sensor holder of the evaporator 5 Disengage the display unit by simply pushing at the top of the display unit 6 Remove the fixing screw that secures the electric parts box assembly and remove the assembly lt How to assemble the electric parts box gt 1 Hook the top part of the electric parts box assembly onto the claws on the back body Now attach the display unit Connect the connectors for the fan motor and louver motor 2 Secure the grounding wire using the fixing screw Insert the TC sensor into the sensor holder Be absolutely sure to loop the grounding wire and TC sensor leads once at the bottom 93 FILE NO SVM 10001 Remarks Electric part box cover TC sensor Fan motor Earth Screw connector Fixing screw AC fan motor connector For RAS 10 13 models only Louver motor connecto Part name Horizontal louver Procedures 1 Remove shaft of the horizontal louver from the back body First remove the left shaft and then remove other shafts while sliding the horizontal louver leftward FILE NO SVM 10001 Remarks Evaporator Heat exchanger 1 Follow to the procedure in the i
71. e 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 and their interchangeability R410A air water heat pump installation Conventional air water heat pump installation Used tool Whether conven tional equipment can be used Existence of new equipment for R410A Whether new equipment can be used with conventional refrigerant Flare tool Pipe flaring Yes Note 1 O Copper pipe gauge for adjusting projection margin Flaring by conventional flare tool Yes Note 1 Note 1 Torque wrench For 012 7 Connection of flare nut Yes x Gauge manifold Charge hose Evacuating refrigerant charge run check etc Yes Vacuum pump adapter Vacuum evacuating Yes Electronic balance for refrigerant charging Refrigerant ch
72. e Modulating valve and 4 way valve according to the operation signal sent from the indoor unit Operation ON Setup of remote controller Y Indoor unit control Control Requierment Indoor fan motor control Louver control Operation Hz sss Sending of operation command signal E Outdoor unit control 4 way valve control Compressor revolution control Outdoor fan motor control Operation Hz control Include limit control In cooling operation ON In heating operation OFF Pulse Modulating valve control 3 AUTO operation Selection of operation mode As shown in the following figure the operation starts by selecting automatically the status of room temperature Ta when starting AUTO operation 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode Ta Cooling operation Monitoring Fan Heating operation 1 Detects the room temperature Ta when the operation started 2 Selects an operation mode from Ta in the left figure 3 Fan operation continues until an operation mode is selected 4 When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20 C or more the fan operation is performed with Super Ultra LOW mode for 3 minutes Then select an operation mode 5 If the status of compressor OFF continues for 15 minutes the
73. eck Simply the Main Parts Primary Judgment Troubleshooting Judgment by Flashing LED of Indoor Unit How to Diagnose Trouble in Outdoor Unit Self Diagnosis by Remote Controller How to Check Simply the Main Parts Judgment of Trouble by Every Symptom How to Simply Judge Whether Outdoor Fan Motor is Good or Bad Precautions when handling the new inverter 3DV Inverter CAUTION HIGH VOLTAGEN The high voltage circuit is incorporated Be careful to do the check service as the electric shock may be caused in case of touching parts on the P C board by hand The new inverter 3DV inverter will be incorporated starting with this unit SDV 3 shunt Discrete Vector control The control circuitry has an uninsulated construction Compressor 1 IGBT x 6 i 1 s 4 R Fan motor Amplifier FET 6 1 Amplifier Shared potential Fig 11 1 66 FILE NO SVM 10001 CAUTION high voltage equivalent to the supply voltage is also energized to ground through the sensors PMV and other low voltage circuits The sensor leads and other wires are covered with insulated tubes for protection Nevertheless care must be taken to ensure that these wires are not pinched Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power At time
74. ed prior to the shutdown after which the Only timer indicator lights and Self Cleaning operation starts Self Cleaning operation stops The Self Cleaning operation is not performed after a heating operation Operation Time set now elapses 1 When the stop signal from the remote controller or timer off function is received only the timer indicator light 2 The period of the Self Cleaning operation operation performed prior to the reception of the stop code 3 After the Self Cleaning operation has been performed for the specified period the unit stops operating During Self Cleaning operations The louver opens slightly The indoor fan operates continuously at a speed of 500 rpm Self Cleaning operation times Operation time Self Cleaning operation time No Self Cleaning operation performed 0 minutes Up to 10 minutes Cooling Auto cooling Dry 10 minutes or longer 30 mins Heating Auto heating Auto fan only No Self Cleaning operation performed Shutdown To stop an ongoing Self Cleaning operation at any time Press the start stop button on the remote controller twice during the Self Cleaning operation After pressing the button for the first time press it for the second time without delay within 10 minutes ud FILE NO SVM 10001 13 Self Cleaning e Self Cleaning diagram function Operation display ON OFF OFF ON ON FCU fan rpm is depend on pr
75. eps above keep the Nitrogen gas flowing until the pipe cools down to a certain extent temperature at which pipes are touchable with hands 4 Piping materials for brazing and used 7 Remove the flux completely after brazing brazing filler flux Piping material Used brazing filler Used flux Copper Copper Phosphor copper Do not use Copper Iron Silver Paste flux lron lron Silver Vapor flux Do not enter flux into the refrigeration cycle When chlorine contained in the flux remains within the pipe the lubricating oil deteriorates Therefore use a flux which does not contain chlorine 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 Nitrogen gas cylinder From Nitrogen cylinder gas Rubber plug Fig 3 5 1 Prevention of oxidation during brazing 15 4 CONSTRUCTION VIEWS FILE NO SVM 10001 4 1 Indoor Unit 790 Front panel Air filter Air inlet 205 KE Knock out system Knock out system H Installation plate hanger Connecting pipe 0 35m Connecting pipe 0 40m For 10 13 series Flare 9 52mm
76. er is kept at 5 C or higher for 80 seconds 3 Defrost operation continues for 15 minutes Returning from defrost operation 1 Stop operation of the compressor for approx 50 seconds 2 Invert OFF 4 way valve approx 40 seconds after stop of the compressor 3 The outdoor fan starts rotating at the same time when the compressor starts FILE NO SVM 10001 Item Operation flow and applicable data etc Description 8 Louver control This function controls the air direction of the indoor unit 1 Louver The position is automatically controlled according to the operation position mode COOL HEAT e The set louver position is stored in memory by the microcomputer and the louver returns to the stored position when the next operation is performed Cooling Heating memory position The angle of the louver is indicated as the louver closes fully is 0 1 Louver position in cooling operation lt Initial setting of Cooling storage position Louver Directs downward 35 39 2 Louver position in heating operation Heating operation AUTO HEAT Initial setting of Heating storage position Louver Directs downward 80 5 2 Air direction adjustment e The louver position can be arbitrarily set up by pressing FIX button Horizontal Inclined Blowing Inclined Horizontal blowing blowing downward blowing blowing 4 4 V a Sal 24
77. esetting 500RPM louver OPEN OPEN 12 7 CLOSE ON or OFF ON ON or OFF depend on presetting of timer function depend on presetting of timer function ON or OFF depend on presetting per room temperature Timer display Compressor OFF CDU fan ON or OFF depend on presetting per room temperature OFF gt Operation time Cool mode or dry mode Self Cleaning mode operation more than 10 mins operate 30 mins Turn off by remote controller or Automatically turn o f timer off function 14 Remote A or B Setting the remote controller 1 Purpose selection To separate using of remote control for each indoor This operation is to operate only one unit in case of 2 air conditioner are installed nearly indoor unit using one remote controller Remote Control B Setup 1 Press RESET button on the indoor unit to turn the air conditioner ON situation where two indoor units have 2 Point the remote control at the indoor unit been installed in the same room or 3 Push and hold CHK e button on the Remote nearby rooms this operation prevents the Control by the tip of the pencil 00 will be shown remote controller signal from being shown on the display received simultaneously by both units 4 Press MODE e during pushing CHK e B will thus preventing both units from operating show on the display and 00 will disappear and Operation the air conditioner will turn OFF The Remote The
78. ex changer Te sensor judges the frosting status of the outdoor heat exchanger and the defrost operation is performed with 4 way valve reverse defrost system Start of heating operation Outdoor heat exchanger temperature 0 1015 Operation time Minute 27 40 The minimum value of Te sensor 10 to 15 minutes after start of operation is stored in memory as Te0 Table 1 When 0 TE gt 2 5 continued for 2 minutes in A zone defrost operation starts When the operation continued for 2 minutes in B zone defrost operation starts When Te0 TE gt 3 continued for 2 minutes in C zone defrost operation starts y FILE NO SVM 10001 Description The necessity of defrost operation is detected by the outdoor heat exchanger temperature The conditions to detect the necessity of defrost operation differ in A B or C zone each Table 1 Defrost operation Defrost operation in A to C zones 1 Stop operation of the compressor for 20 seconds 2 Invert ON 4 way valve 10 seconds after stop of the compressor 3 The outdoor fan stops at the same time when the compressor stops 4 When temperature of the indoor heat exchanger becomes 38 C or lower stop the indoor fan Finish of defrost operation gt Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 C or higher 2 Temperature of outdoor heat exchang
79. f the pipes stick out of the rear plate of the indoor unit Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Since condensation can result in machine performance trouble be sure to insulate both connecting pipes Use polyethylene foam as insulating material When bending a pipe be careful not to crush it 10 3 6 Indoor Unit Installation 1 Pass the pipe through the hole in the wall and hook the indoor unit on the installation plate at the upper hooks 2 Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate 3 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 on the installation plate Hook here CD Installation plate A Push unhook Fig 10 3 19 For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing the bottom up at the specified places Push Push Fig 10 3 20 FILE NO SVM 10001 10 3 7 Drainage 1 Run the drain hose at a downward sloped angle NOTE Hole should be made at a slight downward slant on the outdoor side Do not form the drain hose into the waved shape
80. hen setting the fan speed to AUTO on the remote controller MANUAL revolution of the fan motor is controlled to the fan speed level shown in Fig 5 according to the set Indication Fan speed temperature and room temperature L W8 3 Min air flow rate is controlled by temperature of the indoor heat L L M e exchanger Tc as shown in Fig 4 M WA 4 Cold draft prevention the fan M H 2 speed is controlled by temperature WE of the indoor heat exchanger Tc as shown in Fig 6 5 In order to prevent Cold draft when Min air flow rate control compressor step during heating operation Then louver will move to upper position and fan speed will reduce or off Limited to Min WD tap No limit Fan speed TC 42 a 10 x WD W8 W8 a In up operation 1 in down operation 0 Basic fan control an speed AUTO Cold draft preventive control Line approximate H and SUL with Tc Stop Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting 1 Fan speed M L x 1 4 1 MANUAL tet o 12 E limitation while Tan spee mode IS In Stability 2 ed z i oe A When Tsc gt 24 A is 24 and when Tsc lt 24 A is Tsc A UT Tsc Set value Calculated with linear approximation from M and L Fig 5 In starting and in stability In stability Until 12 minutes passed after operation start When 12 to 25 m
81. indoor unit on which the remote Control B is memorized controller selection has been set to B receives the signal of the remote control Note 1 Repeat above step to reset Remote Control ler also set to B to be A At the factory the remote controller 2 Remote Control A has not A display selection is set to A on all the indoor 3 Default setting of Remote Control from units There is no A setting display factory is A Description When operating one indoor unit in a B Display 00 Display 15 QUIET mode Operation flow and applicable data etc When the QUIET button is pressed the fan of the indoor unit will be restricted the revolving speed at speed L until the QUIET button is pressed once again cancel Quiet mode FILE NO SVM 10001 Description Quiet mode is the system which control the revolving speed of indoor fan to work constantly at lower than speed L In addition noise level of indoor unit is less than usual Remarks 1 Quiet mode is unable to work in dry mode 2 Quiet mode is appropriate to work with less cooling load and less heating load condition Because of the fan speed L may cause not enough the cooling capacity or heating capacity 16 COMFORT SLEEP mode Cooling mode e The preset temperature will increase as show on ECO operation Item No 9 Press the COMFORT SLEEP button to choose the operating hours Repeat pressing to select the hours 1hr
82. inues start the unit in the following condition Set the operation mode to HEAT Set the preset temperature much higher than room tem perature Check whether or not the compressor operates Check whether or not the OPERATION indicator flashes The temperature of the indoor heat exchanger is extremely high The connection of the heat exchanger sensor short circuited CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C board is defective Connect the motor connector to the motor and turn on the power supply Start the unit the following condition Set the fan speed level to HIGH The unit compressor operates continuously in the above condition in No 5 Check it is impossible to detect the voltage AC120V or higher voltage between red and black lead of the motor The motor does not operate or the fan motor does not rotate with high speed But it is possible to receive the signal from the remote controller The motor rotates but vibrates strongly 84 The indoor fan motor is defective Protected operation of P C board The PC board is defective The connection of the motor connector is loose RAS 16SKV2 E Procedure Turn off the power supply breaker and remove the P C board assembly from electronic parts base Remove the connecting cables from the terminal block Table 11
83. inutes passed after operation start FAN AUTO When 12 to 25 minutes passed after operation and room temp is higher than set temp 3 C start and room temp is 3 C or lower than set temp When 25 minutes or more passed after operation start FAN Manual Room temp lt Set temp 4 Room temp gt Set temp 3 5 C Des FILE NO SVM 10001 Operation flow and applicable data etc Description 3 Outdoor fan The blowing air volume at the outdoor unit side is controlled 1 The operation command sent motor control Receiving the operation command from the controller of from the remote controller is indoor unit the controller of outdoor unit controls fan speed processed by the indoor unit For the fan motor a DC motor with non stage variable controller and transferred to the speed system is used However it is limited to 8 stages for controller of the outdoor unit reasons of controlling 2 When strong wind blows at outdoor side the operation of air conditioner continues with the fan motor stopped 3 Whether the fan is locked or not is detected and the operation of air conditioner stops and an Indoor unit controller alarm is displayed if the fan is locked 4 According to each operation 1 Outdoor unit mode by the conditions of operation command outdoor temperature To and Outdoor fan control compressor revolution the speed of the outdoor fan shown in the 2 Fan speed gt 400 YES OFF s
84. ipe temperature sensor Attachment Install the senser onto the straight pipe part of the suction pipe Be careful for the lead direction of the sensor TD sensor Discharge pipe temperature sensor Attachment With its leads pointed upward install the sensor onto the vertical straight pipe part of the discharge pipe TO sensor Outside air temperature sensor Attachment Insert the outdoor air temperature sensor into the holder and install the holder onto the heat exchanger Straight Part Detail A Detail B TS sensor For 10 16k TD sensor For 10 16k CAUTION FILE NO SVM 10001 Procedure Remarks Arrow D bes g Detail B Se Detail C Detail A Shown in the above figure is the model 16k The sensor mounting positions in the model 10 13k are all the same witth the sole excep tion of the TE sensor Refer to the figure shown on the left Detail A TS Sensor For 13k cum Detail B TD Sensor For 13k LI sensor Arrow D holder TO sensor During the installation work and on its completion take care not to damage the coverings of the sensor leads on the edges of the metal plates or other parts It is dangerous for these coverings to be damaged since damage may cause electric shocks and or a fire CAUTION After replacing the parts check whether the positions where the sensors were installed are the proper positions as instructed The product will not be control
85. ived even if the air conditioner was OFF 2 Operation mode is set according to room temperature the same as AUTO mode 3 Target temperature is 24 C 4 Louver position is set as stored position of the operating mode 5 Fan is controlled as followings 18 Hi POWER Mode Operation flow and applicable data etc Hi POWER button on the remote controller is pressed When Hi POWER button is pressed while the indoor unit is in Auto Cooling or Heating operation Hi POWER mark is indicated on the display of the remote controller and the unit operates as follows 1 Automatic operation e The indoor unit operates in according to the current operation Cooling operation The preset temperature drops 1 C The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap Heating operation The preset temperature increases 2 C The value of the preset temperature on the remote controller does not change The indoor unit s fan speed level increase 1 tap 4 The Hi POWER mode can not be set in Dry operation FILE NO SVM 10001 Description 19 FILTER Indicator When the elapsed time reaches 1000 hours after air conditioner operation the FILTER indicator lights After cleaning the filters turn off the FILTER indicator How to Turn Off FILTER Indicator Press RESET button on the indoor unit NOTE If RESET button is pushed while the FIL
86. l Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control Detection of inverter input current and current release operation Over current detection and prevention operation to IGBT module Compressor stop function Compressor and outdoor fan stop function when serial signal is off when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system Transferring of operation information Serial signal from outdoor unit controller to indoor unit controller Detection of outdoor temperature and operation revolution control Defrost control in heating operation Temp measurement by outdoor heat exchanger and control for 4 way valve and outdoor fan Contents of operation command signal Serial signal from indoor unit controller to outdoor unit controller The following three types of signals are sent from the indoor unit controller Operation mode set on the remote controller Compressor revolution command signal defined by indoor temperature and set temperature Correction along with variation of room tempera ture and correction of indoor heat exchanger temperature are added Temperature of indoor heat exchanger For these signals Operation mode and Com pressor revolution indoor heat exchanger tem perature the outdoor unit controller monitors the input current to the inverter and performs the fo
87. lashing YES Item by symptoms Turn off power supply once and 5 second later turn it on again Measures Does transmission mark on remote controller flash normally and is its signal transmitted properly YES Is it possible to turn on power supply by pushing button on remote controller NO Remote controller is defective Refer to 5 Troubleshooting for remote controller Unit operates normally Is fuse F01 Parts R01 C01 C02 of indoor control R64 C27 DB01 board blown T01 are defective NO YES Microcomputer is defective pe mam Is voltage DC12V or 5V indicated on rear of indoor control board normal NO Parts of a power supply circuit defective Be sure to disconnect the motor connector CN31 after shut off the power supply or it will be a cause of damage of the motor ue FILE NO SVM 10001 RAS 16SKV2 E Check Item Considerable principle cause Turn off power supply once and 5 second later turn it on again NO Is OPERATION indicator flashing YES Is it possible to turn on power supply by pushing Measures Item by symptoms Does transmission mark on remote controller flash cy button on normally and is its signal remote controller transmitted properly YES YES Unit operates normally Is fuse F01 of indoor control board blown
88. layed when error is detected Judgment and action Check the room temp sensor When the room temp sensor is normal check PC board Being out of place disconnection short circuit or migration of heat exchanger sensor TC sensor Operation continues Displayed when error is detected Check heat exchanger sensor When heat exchanger sensor is normal check PC board Lock of indoor fan or trouble on the indoor fan circuit All off Displayed when error is detected Check the motor When the motor is normal check P C board Not displayed Trouble on other indoor PC boards Operation continues Displayed when error is detected Replace P C board Connecting cable and serial signal Return serial signal is not sent to indoor side from operation started 1 Defective wiring of connecting cable 2 Operation of compres sor thermo Gas shortage Gas leak Operation continues mg Flashes when trouble is detected on Return serial signal and normal status when signal is reset 1 When the outdoor unit never operate 1 Check connecting cable and correct if defective wiring 2 Check 25A fuse of inverter PC board 3 Check 3 15A of inverter P C board To display Other block during operation check compressor thermo operation and supply gas check gas leak also Unit operates normally during check If
89. led properly and trouble will result if the sensors have not been installed in their proper positions 106 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 Procedure 1 Cut the sensor 100 mm longer than old one 2 Cut the protective tube after pulling out it 200 mm 3 Move the protective tube toward the thermal sensor side and tear the tip of lead wire in two then strip the covering part 4 Pass the stripped part through the thermal constringent tube 5 Cut the old sensor 100 mm length on the connector side and recycle that connector 6 Tear the lead wire in two on the con nector side and strip the covering part 7 Twist the leads on the connector and sensor sides and solder them 8 Move the thermal constringent tubes toward the soldered parts and heat them with the dryer and constring them 9 Wind the attached color tape round the both terminals of the protective tube when colored protective tube is used 10 Fix the sensor again box FILE NO SVM 10001 Remarks Cutting here Thermal 100 sensor part Connector _ 200 Cutting here pom Thermal constringent tube Cutting here 100 Soldered part Doner Winding the color tape 1 Store the joint par
90. llowed operation within the range that current does not exceed the allowable value Contents of operation command signal Serial signal from outdoor unit controller to indoor unit controller The following signals are sent from the outdoor unit controller The current operation mode The current compressor revolution Outdoor temperature Existence of protective circuit operation For transferring of these signals the indoor unit controller monitors the contents of signals and judges existence of trouble occurrence Contents of judgment are described below Whether distinction of the current operation status meets to the operation command signal Whether protective circuit operates When no signal is received from the outdoor unit controller it is assumed as a trouble Operation control of outdoor fan motor Operations followed to judgment e P M V control 4 way valve control _ 28 of serial signal from indoor side FILE NO SVM 10001 9 2 Operation Description Basic operatiom 30 1 Operation control tte EE 30 2 Cooling Heating operation ERR t rex en i e Een D dad 31 S AUTO OE tod Ete AU ed n vta umen 31 4 siad ue KE ATAARE 31 2 Indoor fan motor Control e ee ee a re eed 32 3 Outdoor fan Motor control ortho antenna 34 4 Capacity COMMON seis m 35 5 Current release
91. lnspection procedure gt 1 Remove the front panel Remove 2 screws 2 Remove the cover of the fan motor lead wires 3 Check AC voltage with CN31 connector while the fan motor is rotating NOTE Using a tester measure the resistance value of each winding coil Useathin test rod AFN 220 20 4D Do not disconnect the connector while the fan motor is rotating For P C board side proceed to the item Only indoor fan does not operate of Judgment of Trouble by Every Symptom CN31 BLU CN33 PX PUR 4 GRY P C board zu Position P C board Resistance value Between Black Red Between Black White Between Red White 174 350 _ 78 FILE NO SVM 10001 5 Troubleshooting for remote controller lt Primary check gt Check that A or B selected on the main unit is matched with A or B selected on the remote controller There is no beep from the indoor unit The OPERATION lamp of the air conditioner main unit does not light Push the 5 button Does the transmission NO indicator blink YES Reset the remote control Is there direct sunlight on the receptor of the air conditioner NO YES Is operation possible when the transmitter is moved nearer to the infrared signal receiver of the air conditioner Is there any thyristor fluorescent light nearly YES NO NO YES
92. me is it possible to detect DC 1V or more between 5 and of motor connector CN31 Fan motor operates normally _ 76 FILE NO SVM 10001 Replace indoor fan motor Replace main P C board Replace bearing FILE NO SVM 10001 4 Indoor fan motor automatically starts to rotate by turning on power supply For DC fan motor in RAS 16SKV2 E lt Cause gt The IC is built in the indoor fan motor Therefore the P C board is also mounted to 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 lnspection procedure gt 1 Remove the front panel Remove 2 screws 2 Remove the cover of the fan motor lead wires 3 Check DC voltage with CN31 connector while the fan motor is rotating NOTE Do not disconnect the connector while the fan motor is rotating Usea thin test rod Indoor fan starts rotating when power supply is turned on Check output DC voltage of fan motor on P C board P C board Measure voltage between 3 GND BLACK and 5 V line YELLOW of motor connector CN31 while indoor fan motor is rotating DC 1 0V or more Under DC 1 0V P C board is defective Motor is defective Replace P C board Replace motor 77 FILE NO SVM 10001 For AC fan motor in RAS 10 13SKV2 E lt
93. measurement Gauge attaching port Deoxidized copper pipe m f Thick dia 6 35mm Allowable height difference 10m Allowable pipe length Vacuum pump connecting port Thickness 0 8mm 16 to 20m Deoxidized copper pipe Sectional shape Outer dia 9 52mm oL eat insulator Thickness 0 8mm M v ST EN Pulse Modulating valve at liquid side DA89X1C 23FZ2 Strainer TS Outdoor heat exchanger Temp measurement Compressor LI Propeller fan Refrigerant amount Miri d OUTDOOR UNIT NOTE W Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating NOTE The maximum pipe length of this air conditioner is 20 m When the pipe length exceeds 15m the additional charging of refrigerant 20g per 1m for the part of pipe exceeded 15m is required Max 100g 21 FILE NO SVM 10001 RAS 13SKV2 E RAS 13SAV2 E INDOOR UNIT Temp measurement Indoor heat exchanger gt Cross flow fan Nal Max 20m Min 2m Chargeless 15m Charge 20g m U Pressure measurement Gauge attaching port Deoxidized copper pipe m f Thick dia 6 35mm Allowable height difference 10m Allowable pipe length Vacuum pump connecting port Thickness 0 8mm 16 to 20m Deoxidized copper pipe Sectional shape
94. mote controller 2 When the remote controller is set to the service mode the indoor controller diagnoses the operation condi tion and indicates the information of the self diagnosis on the display of the remote controller with the check codes If a fault is detected all lamps on the indoor unit will flash at 5Hz and it will beep for 10 seconds Beep Beep Beep The timer lamp usually flashes 5Hz during self diagnosis 11 4 1 How to Use Remote Controller in Service Mode 1 Press CHECK button with tip of pencil to set the remote controller to the service mode is indicated on the display of the remote controller 2 Y TOSHIBA cm d 2 Press ONA or OFFA button i If there is no fault with a code the indoor unit will beep ne once Beep and the display of the remote controller will a change as follows e e di id E gt di D pong The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec oe COMFORT oa Check the unit with all 52 check codes to 33 e e bod 4 as shown in Table 11 4 1 SWING FIX ECO Press ONY or OFFF button to change the check oe code backward w OO If there is a fault the indoor unit will beep for 10 O Q od seconds Beep Beep Beep cnkerirenectoece 1 Note the check code on the display of the remote controller 2 digits alpha
95. n between the indoor unit and wall and tilt the indoor unit for better operation Cut the piping hole sloped slightly IO 4 Remote control holder wood screw T P Batteries Make sure to run the drain hose sloped downward The auxiliary piping can be connected to the left rear left rear right right bottom right or bottom left 9000 2 Wireless remote control Vinyl tape Apply after carrying out a drainage test Bottom Rear right left Bottom left 600 mm or more Extension Insulate the refrigerant pipes drain hose separately with insulation not Not available t th provided by installer ogether 6 mm thick heat resisting polyethylene foam Loading Batteries 1 Remove the battery cover 2 Insert 2 new batteries AAA type following the and positions p ai d y 9 Batteries 2 Wireless remote controller 52 10 2 Installation 10 1 2 Optional installation parts Part Code Parts name Q ty Refrigerant piping Liquid side 6 35 mm Gasside 29 52 mm eae 10 13SKV2 Series 212 70 mm 16SKV2 Series Pipe insulating material 1 polyethylene foam 6 mm thick One Putty PVC tapes each lt Fixing bolt arrangement of outdoor unit gt 320 mm 108 mm 125 mm Ae 28 mm Air inlet OY aa NA N L ap r X n ri y Air o
96. nomy button Quiet button QUIET Comfort sleep button COMFORT SLEEP ER Filter reset button FILTER Clock Reset button CLOCK Check button CHK 9 4 2 Operation of remote control 1 ONE TOUCH Press the ONE TOUCH button for fully automated operation that is customised to the typical consumer preferences in your region of the world The coutomised settings control temperature air flow strength air flow direction and other settings to provide you alternate contact with ONE TOUCH OF THE BUTTON If you prefer other settings you can select from the many other operation functions of your Toshiba unit Press 6 ONE TOUCH Start the operaton AUTOMATIC OPERATION To automatically select cooling heating or fan only operation 1 Press MODE Select A 2 Press 8 MODE Select A COOLING HEATING FAN ONLY OPERATION To automatically select cooling heating or fan only operation 1 Press MODE Select Cool t Heat xx or Fan only 2 Press MODE Set the desired temperature Cooling Min 17 C Heating Max 30 C Fan Only No temperature indication 3 Press FAN Select AUTO LOW LOW MED MED Jag Or HIGH 48 FILE NO SVM 10001 DRY OPERATION COOLING ONLY For dehumidification a moderate cooling performance is controlled automatically 1 Press MODE Select Dry 2 Press 8 MODE Set the desired tempe
97. ntroller to turn it off When the unit is in operation Operation Motions Press RESET button for more than The unit is in operation The green indicator is on three seconds Less than 10 seconds The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times The green indicator flashes for 5 seconds If the unit is required to operate at this time press RESET button once more or use the remote controller to turn it on While the filter check indicator is on the RESET button has the function of filter reset betton 46 FILE NO SVM 10001 9 3 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as follows Repeat the setting procedure the unit receives the signal and beeps three times The unit will be required to be turned on with the remote controller after the main power supply is turned off When the system is on stand by not operating Operation Press RESET button for more than three seconds Less than 10 seconds When the system is operating Operation Press RESET button for more than three seconds Less than 10 seconds Motions The unit is on standby 1 unit starts to The green indicator is on After approx three seconds The unit beeps three times and c
98. numeric will be indicated on the display All indicators on the indoor unit will flash 5 times per 1 sec N Z 3 Press CLR button After service finish for clear service code memory Alphanumeric characters are I e 7F is indicated on the display of the remote used for the check codes control b is 5 B is 6 His A BisB ber 4 Press button to release the service mode L is C d is D The display of the remote controller returns to as it was before service mode was engaged Fig 11 4 1 _ 70 11 4 2 Caution at Servicing 1 After servicing press the button to return to the normal mode 2 After servicing by the check code turn off breaker of the power supply and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status However the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory FILE NO SVM 10001 3 After servicing press CLR button under check mode status and then send the check code 7F to the indoor unit The error code stored in memory is cleared Block distinction Table 11 4 1 Operation of diagnosis function Check Block Indoor PC board etc Cause of operation Short circuit or discon nection of the room temperature sensor TA sensor Air conditioner status Operation continues Remarks Disp
99. o circuit control current 4 If the current value exceeds the specified value this function reduces the compressor speed and controls speed up to the closest one commanded from the indoor unit within the range which does not exceed the Capacity control continues specified value Operating current High Setup value Reduce compressor speed Low Current decrease Outdoor temp Cooling current release value Heating current release value 45 C 3 97A 427A 645A 6 304 630A 7 72A RN 44 C 435A 4 88A 6 75 6 304 6 30A 847A E ELS Eod SE 6 Release protective control by tempera ture of indoor heat exchanger Indoor heat exchanger temperature Indoor heat exchanger temperature Operation flow and applicable data etc lt ln cooling dry operation gt Prevent freezing control for indoor heat exchanger In cooling dry operation the sensor of indoor heat exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Usual cooling capacity control When the value is in Q zone the compressor speed is kept Reduction of compressor speed FILE NO SVM 10001 Description 1 When temperature of the indoor heat exchanger drops below 5 C the compressor speed is reduced P zone 2 When temperature of the indoor heat exchanger rises in the range from 6 C to unde
100. ommended to procure an antifreeze heater locally for a safe installation of the air conditioner For details contact the dealer FILE NO SVM 10001 2 SPECIFICATIONS 2 1 Specification RAS OSKVZ E RAS 10SAV2 E Cooling capacity range 1 1 3 1 Heating capacity Heating capacity range 0 9 4 8 Power supply 1Ph 50Hz 220 240V 1Ph 60Hz 220 230V Electric Cooling Heating Cooling characteristic A 0 21 0 19 0 21 0 19 35 76 63 91 em 5 g AES o 5 3 o o o 0 24 0 22 5 5 5 e s 3 o 8 B Power consumption 5 o z a rs 5 9 Q 3 Outdoor Cooling Cooling 457 420 965 9 9 D tarting current 547 COP Cooling Heating 3 50 3 89 i High Cooling Heating 39 40 Medium Cooling Heating 33 34 Cooling Heating 26 28 Cooling Heating 48 50 RAS 13SKV2 E 4 93 4 52 1040 Running current 0 E Q 3 o o 5 gt 9 z m Q Q S S o e z o 5 3 gt les gt alelele 2 2 2 2 o U gt Outdoor Indoor unit c 5 3 31313 gt 2 275 mmf 790 790 205 7 2 3 z 2 3 d e motor output Air flow rate Cooling Heating i 8 6 9 5 9 5 10 4 RAS 10SAV2 E RAS 13SAV2 E 75 90 05 0 550 550 80 90 3 50
101. ontinues to operate If the unit is not required to operate at this time press RESET button once more or use the remote controller to turn it off Motions The unit is in operation The green indicator is on The unit stops operating The green indicator is turned off After approx three seconds The unit beeps three times If the unit is required to operate at this time press RESET button once more or use the remote controller to turn it on 9 3 3 Power Failure During Timer Operation When the unit is turned off because of power failure during timer operation the timer operation is can celled In that case set the timer operation again NOTE The Everyday Timer is reset while a command signal can be received from the remote controller even if it stopped due to a power failure _ 47 9 4 Remote control 9 4 1 Remote control and its functions G5 6G OG 6965 O06 9 C60 09 tC FILE NO SVM 10001 Infrared signal emitter Start Stop button AB SAX OLGA Mode select button MODE CHK HEE Temperature button TEMP E 89 Fan speed button FAN Swing louver button SWING PRESET FAN Set louver button FIX O On timer button ON 0 Off timer button OFF Sleep timer button SLEEP Setup button SET c Clear button CLR Memory and Preset button PRESET D m ev One Touch button ONE TOUCH eo High power button Hi POWER Eco
102. oor unit in cooling operation at airflow level LOW Is it possible to detect DC 310 340V between N NO Does indoor NO fan operate YES D and 3 of motor connector CN31 Motor connection condition Is it possible to detect DC 15V between and 3 O of i QS motor connector YES Change airflow level to HIGH Start to operate the indoor unit in except heating operation At this time is it possible to detect DC 1V or more between 5 and 3 of motor connector CN31 Is it possible to change airflow level to HIGH Is it possible to Turn off indoor unit and remove connector from motor Then push START STOP button on remote controller to stop flashing lamp on indoor unit Is it possible to detect DC 15V between 4 and O of motor connector CN31 Turn off indoor unit and remove connector from motor Then start to operate indoor unit with remote controller Start to operate the indoor unit in except heating operation At this time is it possible to AGO V DO between an of motor connector Check this condition within 15 seconds after starting unit rotate cross flow fan by hand properly Turn off indoor unit and rotate cross flow fan by hand when the unit is on standby At this ti
103. orporate the fan motor remove the fan motor rubber at shaft core side incorporate the motor into the position in the following figure and then install the fan motor Install the cross flow fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 70 5 mm from wall of rear plate of the main unit Holding the set screw install the cross flow fan so that U groove of the fan motor comes to the mounting hole of the set screw Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two hooking claws of the motor band right into the main body position the fan motor insert it and then secure the motor band right using the two fixing screws U groove 97 FILE NO SVM 10001 Remarks 12 2 Microcomputer Part name Common procedure Procedure 1 Turn the power supply off to stop the operation of air conditioner 2 Remove the front panel Remove the 2 fixing screws 3 Remove the electrical part base _ 98 FILE NO SVM 10001 Remarks Replace terminal block microcomputer ass y and the P C board ass y 12 3 Outdoor Unit Part name Common procedure Procedure 1 Detachment Wear gloves for this job Otherwise you may injure you
104. osis of Inverter Assembly Diagnosis Process flowchart Remove connector of compressor Check 25A fuse Part No F01 Replace fuse Check electrolytic capacitor diode block DBO1 etc Check terminal voltage of electrolytic capacitor Check electrolytic capacitor diode DBO1 etc Does outdoor fan rotate Remove connector CN300 of outdoor fan motor and using a tester check resistance value between every phases at motor side Replace outdoor fan motor Ta Preparation Operation Measure ment Check Stop Check Measure ment ble 11 7 1 Contents Turn OFF the power supply breaker and remove 3P connector which connects inverter and compressor Check whether 25A fuse on the control board assembly is blown or not F01 Turn on the power breaker and operate the air condi tioner in COOL mode by time shortening Measure terminal voltage of the electrolytic capacity 500uF 400WV x 760uF 400WV x After operation turn off the power breaker after 2 minutes 20 seconds passed and discharge the electro lytic capacitor by soldering iron Check voltage between motor phases Is not winding between D Q G or O opened or short circuited Is not frame grounded with or 82 FILE NO SVM 10001 Summary If fuse was blown be sure to check the electrolytic capacitor and diode block DB01
105. ouenbea 1ndino 041u09 uornoau109 20428 JOMOd uBiH 0 009 UB 041009 99 p JUBUND J9AO 199 03009 se 1 1nduJ uonounj sis ulu s NOW god 600SOOW ec KE ENERO E INVH9Via YALNdNOD OXYDIN JeyJ 9SION Josues duiei JeDueuoxe 1e9H Josues I dwa uonong Josues 1ooplnO Josues duu81 abseyosiq gt yun 100pu ZHOS 075 066 i LINN HOOQNI 104 27 FILE NO SVM 10001 9 OPERATION DESCRIPTION 9 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner which uses AC or DC motor for the indoor for motor and the outdoor fan motor And the capacity proportional control compressor which can change the motor speed in the range from 11 to 96 rps is mounted The DC motor drive circuit is mounted to the indoor unit The compressor and the inverter to control fan motor are mounted to the outdoor unit The entire air conditioner is mainly controlled by the indoor unit controller The indoor unit controller drives the indoor fan motor based upon command sent from the remote controller and transfers the operation command to the outdoor unit controller The outdoor unit controller receives operation com mand from the indoor unit side and controls the outdoor fan and the pulse Modulating valve P M V Besides dete
106. r Displayed when 1 Check discharge temp sensor error is detected TD 2 Check P C board Position detect error over current protective operation of outdoor fan drive system fan lock etc Replace P C board or fan motor yi Outdoor fan drive All off system error Displayed when error is detected y Not displayed Outdoor heat exchanger Operation 1 Check outdoor temp sensor temp sensor error continues TO 2 Check P C board J Outdoor board Compressor drive output error Compressor error lock missing etc Break down All off Displayed when error is detected When 20 seconds passed after start up position detect circuit error occurred Replace compressor Trouble on P M V Others including compressor Cd Return serial signal has been sent when operation started but it is not sent from halfway 1 Compressor thermo operation Gas shortage Gas leak 2 Instantaneous power failure Operation continues Flashes when trouble is detected on return serial signal and normal status when signal is reset 1 Repeat Start and Stop with interval of approx 10 to 40 minutes Code is not displayed during operation Supply gas Check also gas leak Unit operates normally during check If return serial signal does not stop between indoor terminal
107. r hands on the parts etc 1 Stop operation of the air conditioner and turn off the main switch of the breaker for air conditioner 2 Remove the valve cover ST1T 4 x 10L 2 pcs After removing screw remove the valve cover pulling it downward 3 Remove cord clamp ST2T 4 x 14L 3 pcs and then remove connecting cable 4 Remove the upper cabinet ST1T 4 x 10L 5 pcs After removing screws remove the upper cabinet pulling it upward 2 Attachment 1 Attach the water proof cover The water proof cover must be attached without fail in order to prevent rain water etc from entering inside the indoor unit 2 Attach the upper cabinet ST1T 4 x 10L 5 pcs 3 Perform cabling of connecting cable and attach the cord clamp Fix the cord clamp by tightening the screws ST2T 4 x 14L pcs fitting 2 concave parts of the cord clamp to each connecting cables 4 Attach the valve cover ST1TO 4 x 10L 2 pcs Insert the upper part into the square hole of the side cabinet set hook claws of the valve cover to square holes at three positions of the main unit and attach it pushing upward 99 FILE NO SVM 10001 Remarks Upper cabinet 3 Waterproof cover These 2 bending parts shall be put inside of a unit by bending these 2 ports This part shall be put on the side cabinet Fit the corner of the water proof
108. r 7 C the compressor speed is kept Q zone 3 When temperature of the indoor heat exchanger rises to 7 C or higher the capacity control operation returns to the usual control in cooling operation R zone In heating operation gt Prevent overpressure control for refrigerating cycle In heating operation the sensor of indoor heat ex changer detects condensation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Reduction of compressor speed When the value is in Q zone the compressor speed is kept Usual heating capacity control eB 1 When temperature of the indoor heat exchanger rises in the range from 50 C to 55 C the compressor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 46 C to under 55 C the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 C or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 50 C or when it drops below to 46 C the capacity control operation returns to the usual control in heating operation R zone 7 Defrost control Operation flow and applicable data etc This function removes frost adhered to the outdoor Only in heating heat exchanger operation The temperature sensor of the outdoor heat
109. rature Hi POWER OPERATION To automatically control room temperature and airflow for faster cooling or heating operation except in DRY and FAN ONLY mode Press HI POWER Start and stop the operation ECO OPERATION To automatically control room to save energy except in DRY and FAN ONLY mode Press ECO Start and stop the operation Note Cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase For heating operation the set temperature will decrease TEMPORARY OPERATION In case of the misplaced or discharged remote control Pressing the RESET button the unit can start or stop without using the remote control x Mie Operation mode is set on AUTOMATIC operation preset temperature is 24 C and fan operation is automatic speed TIMER OPERATION Setting the ON Timer Setting the OFF Timer 1 Press Set the desired ON timer Press o Set the desired OFF timer 2 Press Set the timer Press set the timer 3 Press Cancel the timer Press Everyday timer allows the user to set both the ON amp OFF timers and will be activated on a daily basis Setting Everyday Timer 1 SN Setthe ON timer 3 Press Press O OFF Press button during the f or 8 OFF 4 2 Press Set the OFF timer ark flashing During the every day timer is activation both arrows
110. re and union portions do not have any scar or dust etc b Correctly align the processed flare surface with the union axis 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 occur When it is strong the flare nut may crack and may be made non removable When choosing the tighten ing torque comply with values designated by manufacturers Table 3 2 7 shows reference values 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 Table 3 2 7 Tightening torque of flare for R410A Reference values Tightening torque of torque wrenches available on the market N m kgf cm Nominal Outer diameter Tightening torque diameter mm 14 to 18 140 to 180 16 160 18 180 33 to 42 330 to 420 42 420 50 to 62 500 to 620 55 550 63 to 77 630 to 770 65 650 e FILE NO SVM 10001 3 3 Tools 3 3 1 Required Tools The service port diameter of packed valve of the outdoor unit in the air water heat pump 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 7 copper pip
111. re 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 3 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 materi als exclusive 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 other 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 installation servicing be sure to ventilate fully If the refrigerant gas comes into contact with fire a poisonous gas ma
112. re to secure its feet This air conditioner accepts a connection piping length of up to 20 m There is no need to add refrigerant as long as the length of the connection piping is 15 m or less You will need to add 20 g of refrigerant per meter of added connection piping for installations requiring connection piping to be between 16 m to 20 m An allowable height level is up to 10 m A place where the drain water does not cause any problems FILE NO SVM 10001 Precautions for adding refrigerant Use a scale having a precision with at least 10 g per index line when adding the refrigerant Do not use a bathroom scale or similar instrument Use liquid refrigerant when refilling the refrigerant Since the refrigerant is in liquid form it can fill quickly Therefore perform the filling operation carefully and insert the refrigerant gradually CAUTION Install the outdoor unit without anything blocking the discharging air When the outdoor unit is installed in a place always exposed to strong winds like on the coast or on a high story of a building secure the normal fan operation using a duct or a wind shield Especially in windy areas install the unit to prevent the admission of wind Installation in the following places may result in trouble Do not install the unit in such places A place full of machine oil A saline place such as the coast A place full of sulfide gas A place
113. red for the new refrigerant R410A units For connecting pipes use new and clean piping materials with high pressure fittings made for R410A only so that water and or dust does not enter Moreover do not use the existing piping because there are some problems with pressure fittings and possible impurities in existing piping CAUTION TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY This appliance must be connected to the main power supply by a circuit breaker or a switch with a contact separation of at least 3 mm DANGER ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL TO IN STALL MAINTAIN THE AIR CONDITIONER INAPPROPRIATE SERVICING MAY RESULT IN WATER LEAKAGE ELECTRIC SHOCK OR FIRE 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 N DANGER HIGH VOLTAGE The high voltage circuit is incorporated Be careful to do the check service as the electric shock may be caused in case of touching parts on the P C board by hand CORRECTLY CONNECT THE CONNECTING CABLE IF THE CONNECTING CABLE IS INCOR RECTLY CONNECTED ELECTRIC PARTS MAY BE DAMAGED CHECK THAT THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE SERVICE AND INSTALLATION FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK FILE NO SVM 10001 DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS FAILURE TO FOLLOW
114. rew 2 m or more from floor Hook f Hook Installation Thr ad Pipe hole Plate Fig 10 3 3 56 FILE NO SVM 10001 When the installation plate is directly 10 3 3 Electrical Work mounted on the wall 1 The supply voltage must be the same as the rated voltage of the air conditioner 1 Securely fit the installation plate onto the wall by screws with the upper and lower catches that 2 Prepare a power source for the exclusive use of hold the indoor unit facing out the air conditioner 2 To mount the installation plate on a concrete wall NOTE ene ps anchor bolt holes as Wire type Ra Rast daa f qp More than HO7RN F or 245IEC66 3 Install the installation plate horizontally and level CAUTION This appliance can be connected to a main circuit breaker in either of the following two ways 1 Connection to fixed wiring A switch or circuit breaker which discon nects all poles and has a contact separa CAUTION When installing the installation plate with mount ing screw do not use the anchor bolt hole Otherwise the unit may fall down and result in personal injury and property damage tion of at least 3 mm must be incorporated in the fixed wiring An approved circuit Eod breaker or switch must be used Anchor bolt N Connection with power supply plug Attach power supply plug with power cord anti and plug it into wall outlet An approved
115. rging period 10 seconds or more Plug of soldering iron Inverter cover P C board Soldered surface A if FILE NO SVM 10001 11 1 First Confirmation 11 1 1 Confirmation of Power Supply Confirm that the power breaker operates ON normally 11 1 2 Confirmation of Power Voltage Confirm that power voltage is AC 220 230 240 10 If power voltage is not in this range the unit may not operate normally 11 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 controlling and main taining of air conditioner Table 11 1 1 Operation of air conditioner When power breaker is turned ON the operation indicator Green of the indoor unit flashes Description The OPERATION lamp of the indoor unit flashes when power source is turned on If button is operated once flashing stops Flashes also in power failure Compressor may not operate even if the room temperature is within range of compressor ON The compressor does not operate while compressor restart delay timer 3 minutes timer operates The same phenomenon is found af
116. s into the air conditioner circuit which uses R410A trouble with the refrigeration system may develop 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 begin 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 Confirm that the compound pressure gauge reading is 101 kPa 76 cmHg 5 Close the low pressure valve handle of gauge manifold 6 Open fully the valve stem of the packed valves both sides 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 Pressure gauge 101kPa 76cmHg 0 Manifold valve Handle Hi X Keep full closed For R410A only Vacuum pump adapter for counter flow prevention For R410A only Packed valve at gas side Service port Valve core Setting pin Packed valve at liquid side Fig 10 4 9 M CAUTION N e KEEP IMPORTANT 5 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 4 Check gas leak connecte
117. s or an equivalent tool Fig 10 3 16 Left hand connection with piping Bend the connecting pipes so that they are posi tioned within 43 mm above the wall surface If the connecting pipes are positioned more than 43 mm above the wall surface the indoor unit may be unstable When bending the connecting pipe make sure to use a spring bender to avoid crushing the pipe Refer to the table below for the bending radius of each connection pipe Outer diameter Bending radius To connect the pipe after installation of the unit figure To the front flare NS Gas side Liquid 3 R30 or less 26 35 R40 or less 29 52 R50 or less O12 7 Use polishing polyethylene core or the like for bending pipe k Outward form of indoor unit 1 9 H mM e Use a screwdriver handle etc Fig 10 3 17 NOTE If the pipe is incorrectly bent the indoor unit may be unstable 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 _ 59 CAUTION Bind the auxiliary pipes two and connecting cable with facing tape tightly In case of leftward piping and rear leftward piping bind the auxiliary pipes two only with facing tape Indoor unit Auxiliary pipes Connecting cable Installation plate Fig 10 3 18 Carefully arrange the pipes so that none o
118. s such as when the circuit board is to be replaced place the circuit board assembly in a vertical position Laying the board flat on an electrically conductive object such as the top panel of the air conditioner s outdoor unit while a charge is still retained by the electrolytic capacitors of the inverter s main circuit may cause short circuiting between the electrolytic capacitors and secondary circuit components and result in damage to the components Sensor leads N Fig 11 2 Do NOT lay the circuit board assembly flat Precautions when inspecting the control section of the outdoor unit NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280 to 380V remains and discharging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrolytic capacitor completely by using soldering iron etc lt Discharging method gt 1 Remove the inverter cover plating by opening four mounting claws 2 As shown below connect the discharge resistance approx 100040W or plug of the soldering iron to voltage between terminals of the C14 CAUTION HIGH VOLTAGE is indicated electrolytic capacitor 500UF 400V or 760uF 400V on P C board and then perform discharging Discharging position Discha
119. sing dimensions differ according to the type of flare tool When using a con ventional flare tool be sure to secure dimen sion A by using a gauge for size adjustment Fig 3 2 1 Flare processing dimensions Table 3 2 3 Dimensions related to flare processing for R410A A mm Outer diameter mm Thickness mm Nominal diameter Flare tool for R410A Conventional flare tool clutch type Clutch type Wing nut type 1 0 to 1 5 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 1 0 to 1 5 2 0 to 2 5 Table 3 2 4 Dimensions related to flare processing for R22 A mm Outer diameter mm Thickness mm Flare tool for R22 clutch type Clutch type Wing nut type Nominal diameter Conventional flare tool 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 1 0 to 1 5 0 5 to 1 0 1 5 to 2 0 0 5 to 1 0 1 5 to 2 0 Table 3 2 5 Flare and flare nut dimensions for R410A Nominal Outer diameter Thickness Dimension mm Flare nut width diameter mm mm B C mm z FILE NO SVM 10001 Table 3 2 6 Flare and flare nut dimensions for R22 Nominal Outer diameter Thickness Dimension mm Flare nut width diameter mm mm B C mm lo 45 Fig 3 2 2 Relations between flare nut and flare seal surface 2 Flare Connecting Procedures and Precautions a Make sure that the fla
120. sistance value tester res in good product ei 50kQ more OQ in trouble e 89 FILE NO SVM 10001 11 9 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 1 Symptom Outdoor fan motor does not rotate Outdoor fan motor stops within several tens seconds though it started rotating Outdoor fan motor rotates or does not rotate according to the position where the fan stopped etc Remote controller check code 02 Outdoor block 1A Outdoor fan drive system error 2 Cause The following causes are considered when the outdoor fan motor does not normally rotate 1 Mechanical lock of the outdoor fan motor 2 Winding failure of the outdoor fan motor 3 Position detect circuit failure inside of the outdoor fan motor 4 Motor drive circuit failure of the outdoor P C board 3 How to simply judge whether outdoor fan motor is good or bad Turn OFF the breaker Disconnect two connectors CN300 of the outdoor fan motor from the outdoor P C board Does the fan rotate without trouble when rotating it with hands If the resistance value between CN300 2 Red lead White lead White lead _ Black lead Black lead _ Red lead of the connector CN300 Motor winding is 17 to 250 it is normal Fan motor is normal Fan motor error Outdoor P C board error NOTE Howe
121. t of the sensor and the connector in the electric parts 2 Never joint them near the thermal sensor part Otherwise it would cause insulation 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 Parts name Sensor Remarks Length 3m Sensor Spring A For spare Sensor Spring B For spare Thermal constringent tube Including one spare Color tape 9 colors Terminal 107 FILE NO SVM 10001 13 EXPLODED VIEWS AND PARTS LIST 13 1 Indoor Unit Part E Location No 43T69319 43T60365 43T69320 43T62003 43T69633 43T69641 Description TEMPERATURE SENSOR TERMINAL BLOCK 3P TEMPERATURE SENSOR CORD CLAMP PC BOARD ASSY WRS LED FOR RAS 16SKV2 E PC BOARD ASSY WRS LED FOR RAS 10 13SKV2 E Location No 406 406 108 43T69784 43769827 43769840 Description PC BOARD FOR RAS 16SKV2 E PC BOARD FOR RAS 13SKV2 E PC BOARD FOR RAS 10SKV2 E 13 2 Indoor Unit Location No Part 43T21420 43T21409 43T21410 43T22312 43T70313 43T20325 43T11301 43T11320 43T83003 43T60382 43T82310 43T19333 43T09408 219 Location Description No LOUVER MOTOR FAN MOTOR FOR RAS 10 13SKV2 E FAN MOTOR FOR RAS 16SKV2 E BEARING ASSY MOLD HOSE DRAIN CROSS FLOW FAN ASSEMBLY PIPE SHIELD FOR RAS 10 1
122. tatus of when the motor stopped fan motor continues table is selected NO Air conditioner ON Remote controller Fan motor ON YES Air conditioner Alarm NO 4 Motor operates as shown in the table below In cooling operation In Heating operation 13 8 31 7 Compressor speed rps 16 8 47 9 To gt 15 C To gt 38 C To lt 15 C To 2 28 C To lt 5 5 C gt 15 C lt 5 0 gt 5 5 C gt 15 gt 0 During To lt 15 C lt 0 mode lt 5 5 During To 38 C To lt 5 5 ECO mode To lt 38 C When To is abnormal When To is abnormal Compressor speed rps Outdoor fan speed rpm 10SAV2 E 13SAV2 E 16SAV2 E 10SAV2 E 13SAV2 E 16SAV2 E EA FILE NO SVM 10001 Operation flow and applicable data etc Description 4 Capacity The cooling or heating capacity depending on the load is 1 The difference between set control adjusted temperature on remote controller According to difference between the setup value of tempera Ts and room temperature Ta ture and the room temperature the capacity is adjusted by is calculated the compressor revolution 2 According to the temperature difference the correction value of Remote controller Indoor unit Hz signal which determines the compressor speed is set up
123. tem F LAN 2 ad 4 Remove one fixing screw on the heat exchage fixing holder to separate the heat exchage from the back body 5 Remove right side of the end plate from two fixing rib while sliding slightly the heat exchanger rightward 94 2 Remove the pipe holder from the rear side of the main unit 3 Remove two fixing screws at the left side of the end plate of the heat exchanger Heat exchanger fixing holder Rib on the right side of the end plate FILE NO SVM 10001 Part name Procedures Remarks Bearing 1 Follow to the procedure in the item 2 Remove the two screws used to secure the bearing base Two screws 3 Remove the bearing base Caution at assembling If the bearing is out from the housing push it into the specified position and then incorporate itin the main body Bearing Bearing base _ 95 Part name Fan motor Procedures 1 Follow to the procedure till item 2 Loosen the set screw of the cross flow fan 3 Remove two fixing screws of the motor cover and them remove the motor cover 4 Remove two more fixing screws of the motor band and remove the motor band 5 Pull the fan motor outward 96 FILE NO SVM 10001 Remarks Set screw Two screws Two screws on motor band Motor cover Part name Cross flow fan Procedures lt Caution at reassembling gt 1 To inc
124. ter YES Set it correctly lt Is positioning sound of valve sound hitting to stopper heard from valve when the air conditioner starts the operation after turning off power of the air conditioner once Replace coil valve NO temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors which are used to control pulse motor valve include indoor heat exchanger sensor TC outdoor heat exchanger temp sensor TE outdoor suction temp sensor TS and outdoor sensor TO YES Set it correctly pee 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 sound is heard if keeping pushed for 10 seconds The operation enters temporary operation mode which fixes opening degree of compressor speed Check condensation at outlet of PMV and then check operating pressure from the service port Existence of condensation at outlet of P M V YES If there is condensation at outlet 1 4 inch 6 35mm valve side the valve is clogged Replace valve Check the operating pressure from service port and add gas if pressure is low Sgi Add gas 11 7 How to Diagnose Trouble in Outdoor Unit 11 7 1 Summarized Inner Diagn
125. ter power source has been turned on because 3 minutes timer operates In Dry and ECO mode FAN air flow display does not change even though FAN air flow select button is operated The air flow indication is fixed to AUTO Increasing of compressor motor speed stops approx 30 seconds after operation started and then compressor motor speed increases again approx 30 seconds after For smooth operation of the compressor the compres sor motor speed is restricted to Max 41 rps for 2 min utes and Max 91 rps for 2 minutes to 3 minutes respec tively after the operation has started In AUTO mode the operation mode is changed After selecting Cool or Heat mode select an operation mode again if the compressor keeps stop status for 15 minutes In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the temperature arrives at the set temperature The compressor motor speed may decrease by high temp release control Release protective operation by temp up of the indoor heat exchanger or current release control 68 FILE NO SVM 10001 11 2 Primary Judgment To diagnose the troubles use the following methods 1 Judgment by flashing LED of indoor unit 2 Self diagnosis by service check remote controller 3 Judgment of trouble by every symptom Firstly use the method 1 for diagnosis Then use the method 2 or 3 to diagnose the details
126. the front cabinet If removing the inverter cover in this Q P C board condition P C board can be checked K If there is no space above the unit perform work of 1 in Inverter cover Be careful to check the inverter because high voltage circuit is incorporated in it 3 Perform discharging by connecting Discharging position solderin polarity by discharging resistance approx ce iron d 100040W or plug of soldering iron to terminals a of the C14 printed CAUTION HIGH VOLTAGE is attached electrolytic capacitor 760pF or 500uF on P C board Be careful to discharge the capacitor because the electrolytic capacitor cannot naturally discharge and voltage m remains according to trouble type in 5717 4 x 8MSZN some cases gt This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting between 4 Remove screw ST1T 4 x 10L 4pcs fixing the terminal part of inverter box to the main Put each leads Put the compressor through the hole leads through the hole body 5 Remove the front cabinet by performing step 1in Q and remove the fixing screws The connector is one ST1T 4 x 10L for securing the main body with lock so remove and inverter box it while pushing the 6 Remove various lead wires from the holder part indicated by an at upper part of the inverter
127. tion To test the system press and hold RESET button for 10 sec There will be one short beep RESET button Fig 10 5 2 10 5 3 Auto Restart Setting This product is designed so that after a power failure it can restart automatically in the same operating mode as before the power failure Information The product was shipped with Auto Restart function in the OFF position Turn it ON as required FILE NO SVM 10001 10 5 4 Remote Controller A or B Selection How to Set the Auto Restart Press and hold the RESET button for about 3 seconds After 3 seconds three short electric beeps will be heard to inform you that the Auto Restart has been selected To cancel the Auto Restart follow the steps described in the section Auto Restart Function on Owner s Manual 65 Setting When two indoor units are installed in the separated rooms it is not necessary to change the selector switches Remote control A or B Selection When two indoor units are installed in the same room or adjacent two rooms if operating a unit two units may receive the remote control signal simultaneously and operate In this case the operation can be preserved by setting either one indoor unit or remote control to B setting Both are set to A setting in factory shipment The remote control signal is not received when the settings of indoor unit and remote control are different There is no relation be
128. to refer to the wiring system diagram labeled inside the front panel Check local electrical regulations for any specific wiring instructions or limitations Cord clamp Terminal block Terminal cover Earth line Connecting cable y 70 50 Stripping length of the connecting cable NOTE e Use stranded wire only e Wire type H07 RN F or more FILE NO SVM 10001 10 3 5 Piping and Drain Hose Installation Piping and drain hose forming Since condensation results in machine trouble make sure to insulate both the connecting pipes separately Use polyethylene foam as insulating material Rear right Rear left o m c Bottom left c e o Pus Left E Oo m o Bottom right Jai 3 2 oo mp Right Fig 10 3 10 1 Die cutting front panel slit 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 side of thefront panel for the bottom left or right connection with a pair of nippers 2 Changing drain hose For left connection left bottom connection and rear left connection s piping it is necessary to relocate the drain hose and drain cap How to remove the drain cap Clip drain cap with needle nose pliers and pull out
129. tween A setting B setting and A room B room when connecting the piping and cables Remote Control A B Selection To separate using of remote control for each indoor unit in case of 2 air conditioner are installed nearly the remote control signal simultaneously and operate In this Remote Control B Setup 1 Press RESET button on the indoor unit to turn the air conditioner ON 2 Point the remote control at the indoor unit 3 Push and hold button the Remote Control by the tip of the pencil 00 will be shown on the display 4 Press MODE during pushing CHK B will show on the display 00 will disappear and the air conditioner will turn OFF The Remote Control B is memorized Note 1 Repeat above step to reset Remote Control to be A 2 Remote Control A have not A display 3 Detault setting of Remote Control from factory is A TOSHIBA B Display iri 00 Display CHK FILTER CLOCK Fig 10 5 3 FILE NO SVM 10001 11 HOW TO DIAGNOSE THE TROUBLE The pulse motor circuits are mounted to both indoor and outdoor units Therefore diagnose troubles according to the trouble diagnosis procedure as described below Refer to the check points in servicing written on the wiring diagrams attached to the indoor outdoor units Table 11 1 No Troubleshooting Procedure No Troubleshooting Procedure First Confirmation How to Ch
130. ut Externally Internally threaded side 2 threaded side Use a wrench to secure Use a torque wrench to secure Fig 10 4 7 CAUTION Do not apply excessive force Otherwise the nut may break Unit N m Outer dia of copper pipe Tightening torque 6 35 mm 14 to 18 1 4 to 1 8 09 52 mm 33 to 42 3 3 to 4 2 kgf m 612 7 mm 50 to 62 5 0 to 6 2 kgf m Tightening torque for connection of flare pipe The pressure of R410A is higher than R22 Approx 1 6 times Therefore securely tighten the flare pipes which connect the outdoor unit and the indoor unit with the specified tightening torque using a torque wrench If any flare pipe is incorrectly connected it may cause not only a gas leakage but also trouble in the refrigeration cycle Flareat indoor unit side Flareat outdoor unit side Fig 10 4 8 10 4 4 Evacuating After the piping has been connected to the indoor unit perform the air purge 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 vacuum pump manual FILE NO SVM 10001 Use a vacuum pump Be sure to use a vacuum pump with counter flow prevention function so that oil inside the pump does not flow back into the air conditioner pipes when the pump stops If oil inside the vacuum pump enter
131. ute the drain hose at a downward sloped angle while ensuring that it is connected tautly Base plate Drain nipple E Commercially available I drain hose flatten and prevent water from draining Do not use ordinary garden hose but one can Fig 10 4 3 FILE NO SVM 10001 10 4 3 Refrigerant Piping Connection Flaring 1 Cut the pipe with a pipe cutter O x x X lt 90 Obliquity Roughness Warp Hae eB Fig 10 4 4 P Zh S 2 Insert a flare nut into the pipe and flare the pipe Projection margin in flaring A Unit mm Rigid Clutch type Conventional tool used Outer dia of R410A copper pipe tool used 1 0 to 1 5 1 0 to 1 5 1 0 to 1 5 Imperial Wing nut type Outer dia of A copper pipe T 1 5 to 2 0 Die MS Pipe 1 5 to 2 0 Fig 10 4 5 2 0 to 2 5 Flaring size B Unit mm Fig 10 4 6 Outer dia of copper pipe In case of flaring for R410A with the conventional flare tool pull it out approx 0 5 mm more than that of R22 to adjust to the specified flare size The copper pipe gauge is useful for adjusting projection margin size 62 Tightening Connection Align the centers of the connecting pipes and tighten the flare nut as much as possible with your fingers Then tighten the nut with a wrench and torque wrench as shown in the figure Half union Flare n
132. utlet 90 mm gt 600 mm outlet Fig 10 2 1 FILE NO SVM 10001 e Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind e Use 28 mm or 210 mm anchor bolts and nuts f itis necessary to drain the defrost water attach drain nipple and cap water proof to the bottom plate of the outdoor unit before installing it CIR 10 2 2 Accessory and installation parts FILE NO SVM 10001 Part No Part name Q ty Part No Part name Q ty Part No Part name Q ty r ui Installation plate x 1 e Je Remote control holder x 1 Mounting screw 4 x 25 x 6 Wireless remote control x 1 Qum Flat head wood screw Pure flow filter x 1 23 1 16 2 b 2 S Battery x 2 Pure flow filter x 1 Drain nipple x 1 Others Name Owner s manual Installation manual 54 Cap water proof x 2 For 09k model only The part marked with asterisk is packaged with the outdoor unit 10 2 3 Installation Servicing Tools Changes in the product and components In the case of an air conditioner using R410A in order to prevent any other refrigerant from being charged accidentally the service port diameter of the outdoor unit control valve 3 way valve has been changed 1 2 UNF 2
133. ver GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor _ 90 FILE NO SVM 10001 12 HOW TO REPLACE THE MAIN PARTS WARNING Since high voltages pass through the electrical parts turn off the power without fail before proceeding with the repairs Electric shocks may occur if the power plug is not disconnected After the repairs have been completed after the front panel and cabinet have been installed perform a test run and check for smoking unusual sounds and other abnormalities If this check is omitted a fire and or electric shocks may occur Before proceeding with the test run install the front panel and cabinet Ensure that the following steps are taken when doing repairs on the refrigerating cycle 1 Do not allow any naked flames in the surrounding area If a gas stove or other appliance is being used extinguish the flames before proceeding If the flames are not extinguished they may ignite any oil mixed with the refrigerant gas Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such
134. ween 5V and GND The terminal block or the crossover cable is connected wrongly The capacitor C01 line filter L01 resistor R64 or the diode DBO1 is defective TO1 is defective ICO2 and TO1 are defective Push O button once to start the unit Do not set the mode to On Timer operation Check power supply voltage 1 Between CN51 and No 1 of CNO1 DC 15 60V IC51 and IC52 are defective Shorten the restart delay timer and start unit Check whether or not all indicators OPERATION TIMER FILTER PRE DEF Hi POWER are lit for 3 seconds and they return to normal 3 seconds later The indicators are defective or the housing assembly CN21 is defective Push button once to start the unit Shorten the restart delay timer Set the operation mode to COOL Set the fan speed level to AUTO Set the preset temperature much lower than the room temperature The unit com pressor operates continuously in the above condition 1 Check whether or not the compressor operates 2 Check whether or not the OPERATION indicator flashes The temperature of the indoor heat exchanger is extremely low The connection of the heat exchanger sensor is loose The connector is disconnected CN62 The heat exchanger sensor and the P C board are defective Refer to Table 11 4 1 The main P C board is defective If the above condition No 5 still cont
135. ws fixing the reactors ST1T 4 x 10L 4 pcs For 16k ST1T 4 x 10L 2 pcs For 10k 13k 104 Reactor Part name Electronic expansion valve coil Procedure 1 Detachment 1 Perform step 1 in all the steps in and 1 in 2 Remove the coil by pull it upward 2 Attachment 1 Insert a valve coil to value body by push it downward And confirm to fix it surely FILE NO SVM 10001 Remarks Fan guard 1 Detachment 1 Perform work of item 1 of 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 claws of the fan guard in the holes of the front cabinet Push the hooking claws 9 positions by hands and fix the claws Check that all the hooking claws are fixed to the specified positions 105 Minus screwdriver Hooking claw Part name TE sensor outdoor heat exchanging temperature sensor Attachment Install the sensor onto the straight pipe part of the condenser output pipe Sensor lead Straight Part E Sensor lead Detail C for 13 16k Detail C for 10k TS sensor Suction p
136. y occur 4 When installing or removing an air conditioner do not allow air or moisture to remain in the refrig eration cycle Otherwise pressure in the refrig eration cycle may become abnormally high so that a rupture or personal injury may be caused 5 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 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 3 2 Refrigerant Piping Installation 3 2 1 Piping Materials and Joints Used For the refrigerant piping installation copper pipes and joints are mainly
137. y turning clock wise To tighten the flange nut turn counterclockwise 3 Remove the propeller fan 4 Disconnect the connector for fan motor from the inverter 5 Remove the fixing screws 4 pcs holding by hands so that the fan motor does not fall Precautions when assembling the fan motor Tighten the flange nut using a tightening torque of 4 9 Nem Flange nut 103 Part name Compressor Procedure 1 Perform work of item 1 of D 2 Extract refrigerant gas 3 Remove the partition board ST1T 4 x 10L 3 pcs 4 Remove the sound insulation material 5 Remove terminal cover of the compressor and disconnect lead wire of the compressor from the terminal 6 Remove pipe connected to the compressor with a burner Take care to keep the 4 way valve away from naked flames Otherwise it may malfunction 7 Remove the fixing screw of the bottom plate and heat exchanger ST1T 4 x 10L 1 pc 8 Remove the fixing screw of the bottom plate and valve fixing plate ST1T 4 x 10L 1 pc 9 Pull upward the refrigeration cycle 10 Remove NUT 3 pcs fixing the compres Sor to the bottom plate FILE NO SVM 10001 Remarks SS f 2 gt Af NI 2025 19 lt gt h lt a Ar LLE Partition LL y board Compressor Reactor 1 Perform work of item 1 of and 2 Remove scre

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