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residential air-conditioning technical manual & parts list

1. mesceewcRe me Ls ap L L a ap 3 2 CC C C 14 SRK T 165 HEAT EXCH amp CONTROL 11 2 TH3 22 20206 muU m 22 25 LIQ 3 7 4 p DE 24 9 NEC GAS CHBEO396 CONTROL ASSY 14 SRK T 165 SRC25CNS S3 S4 S5 S7 END ITEM NO RMCO003F063AD 063AF 063AG 063AJ Recommendable Purchased Q ty Part NO Part Name 116A 003 BRACKETIVALVE 381A 0036 VALVE SERVICE 004 VALVESERVICEGE 5 025 PIPING _ 052 vavesoovxe T 4 J 1 013 wsutarioncome Rc 154014 wsuiaTion _ __ T0 SSA382F 2101 coL soLENOD 1 12 RucC 941C 051 CUSHONRUBBER or4c NUTFLANGE 9 2 004 easket cover 947K 004 COVER TERMINAL NUTFLANGE _
2. 1145 165 SRK25CNS S3 54 55 57 NO RMA002F063AD 063AF 063AG 063AJ Part Name 1 10 301A 008 EXCH ASSY AIR Part No 2 3150 003 ASSY 3 RKW 129A 410 ASSY L 315A 006 DISTRIBUTOR ASSY DISTRIBUTOR 5 PIPE ASSY CAPILLARY CAPILLARY PIPE ASSY PIPE ASSY 10 321A 020 ASSY 11 13 RMA 321A 030 PIPE ASSY 12 SSA 323F 012F UNION SOLDER 13 SSA 323F 088A UNION SLD 14 RKW 129A 411 HOLDER ASSY FILTER 15 16 RKW 142A 400 BOX ASSY CONTROL R 15 RKW 142A 402 BOX CONTROL R m 2 8 4 0 L100 2 8 4 0 1100 2 8 4 0 1100 8 4 0 L100 2 8 4 0 L100 2 8 4 0 L100 0 4 7 16 RKW 132A 404 COVER CONTROL R 17 RKW 142A 401 BOX ASSY CONTROL L 18 RKW 129A 407 HOLDER SENSOR 19 SSA 551A 223H SENSOR ASSY 20 55 551 017C SENSOR HUMIDITY NCL SENSOR ROOM TEMP amp HEAT EXCH 21 SSA 5618 7028 BLOCK TERMINAL 22 24 24 SSA 564A 132 FUSE CURRENT 25 DISPLAY ASSY 26 PWB ASSY DISPLAY RKY 505A 001JL PWB ASSY 27 SPRING LEAF 28 PARTS STANDARD 29 CONTROL ASSY REMOTE 30 MANUAL INSTRUCTION 31 32 FILTER ASSY CLEAN 31 FILTER LIGHT CLEAN 32 437A 0110 FILTER CLEAN RKT 437A 011D 33 HOLDER REMO CON 4 LABEL MODEL NAME 34 LABEL MODEL NAME 34 LABEL MODEL NAME 34 LABEL MODEL NAME 11 13 12 13
3. Model SRK19CNS S Item Indoor unit SRK19CNS S Outdoor unit SRC19CNS S Cooling capacity 1 w 5300 Power supply 1 Phase 220 240V 50Hz Power 2 Cooling kW 1 44 consumption Running Operation current G oling A 1 Inrush current 3 6 COP Cooling 3 68 Noise Sound level dB A 47 42 Lo 39 50 Cooling level Power level dB 60 65 Exterior dimensions Height x Width x Depth mm 309 x 890 x 251 640 x 850 65 x 290 Exterior appearance Fine snow Stucco white Munsell color 8 0Y 9 3 0 1 near equivalent 4 2Y 7 5 1 1 near equivalent Net weight kg 12 44 5 Compressor type amp Q ty PA190M2AS 4KTL1 Rotary type x 1 Motor Starting method kW PSC Refrigerant oil 0 0 62 ESTER OIL VG74 Refrigerant m equipment Refrigerant 4 kg I 1 34 Pre Charged up to the piping length of 7 5m I Heat exchanger Louver fins amp inner grooved tubing Louver fins amp inner grooved tubing Refrigerant control Capillary tubes Electronic expansion valve Deice control Microcomputer control Fan type amp Q ty Tangential fan x 1 Propeller fan x 1 Motor w 30 40 Air flow Cooling m min 15 38 equipment Fresh air intake Not possible Air filter Quality Quantity Polypropylene net washable x 2 Shock amp vibration absorber Cushion rubber for compressor Operation switch Wireless remote control Operation Room temperature control Microcomputer thermostat control Ope
4. pepunozns jou snw 1 3po q PZT 6699 AIIABIS JO 191195 apis uorjooutoo AJLA 921196 Tt 8 88510 9pIS 528 921196 109 00 1145 165 Model SRC25CNS S uuu 1904 jo sojdumxq eds 22045 3914196 JO opis 51 ayy 9 IY JOU 194014 Jo ut V 3Y aovds 10 2797 p seoe dpxQ LIN opu 104 jueumuop aq 0 pre norpuodrod savez ajmo Jawolq 100 soavidex0 Yons spum 0 yoalgns st un ag OS joy mo xtpopqgo adid 0 vey 04 104207 uy 104208 yua jsnu yun C 8 75 88 510 oq uo oq 100 T 14 SRK T 165 3 Wireless remote control Unit mm Stt OMOFA ID dB BE Hi POWER ECONO TEMP AIRFLOW OO gt d 150 SLEEP CANCEL m w CLEAN ACL q 4 60 17 3 3 ELECTRICAL WIRING
5. 26 LABEL MODEL NAME A a N F 3 15A TH1 TH2 TH3 440VAC 45 FOR S5 FOR S7 a OJN 2 Q nil nio oloiaiai X 26 011F 021CF LABEL MODEL NAME 26 011F 021DF LABEL MODEL NAME 63 14 SRK T 165 PANEL amp FAN ASSY 95 14 SRK T 165 SRC25CNS S3 S4 S5 S7 END ITEM RMCO003F063AD 063AF 063AG 063AJ Recommendable Purchased Q ty od 50 106 500 1006 1 122A 001 PANEL ASSY FRONT PANEL ASSY REAR sofrer zaoa PANEL ASSY SERVICE 3 L a a 4 2 service af a a a Th Th 002 GUARDFING 1 12 002 COVERTERMNAL 1 2 SCREW TAP 919A 0346 6 116A a ap a a a PLATE parE K a a al SOS LLL I PP PP wm hh
6. e T N A N Fixing on concrete wall ure prz Use of nut anchor Use of bolt anchor 58 54 lt Bolt Nut Piping Gas 491 1 5 M6x12 2 Noan H Drain hose 16 520 8 5 ounting Li mm mmm i board Piping for Liquid 46 35 Piping for Liquid 5591 8 Mounting iz Piping forGas 127 p IE board 10 MEM Piping hole 465 Piping hole 965 Adjustment of the installation plate in the horizontal direction is to be conducted Adjust so the plate will be level by turning the board with the standard hole with four screws in a temporary tightened state as the center Nothing is connected to this hole on the back of indoor unit 25 Series Look for the inside wall structures Intersediate support or pillar INSTALLATOIN SPACE INDOOR UNIT FRONT VIEW and firaly install the unit after level surface has been checked is 610 Indoor unit 450 Installation board 50 for service for service 100 8 106 886 106 85 oo 39 aso 299 95 50 o 9 E Z d 4 Mating mark for level surface 25 5 Adjustment of the installation board in the horizontal direction is to be conducted with four screws in temporary tightened state 53 5 77 Piping for Gas 633 5 Piping hole 65 912 Piping for Liquid 703 5 S 2 Standard hole For bolt anchor Drain hose 792 16 09 and nut anc
7. 31 6 3D auto operation 32 7 Timer operation rr INN 33 B Installation location setting 33 9 Outline of cooling operation ere 34 10 Outline of automatic operation 34 11 Protective control function _ 35 B MAINTENANCE DATA 52022222 37 1 Cautions 37 2 Items to check before troubleshooting 37 3 Troubleshooting procedure If the air conditioner does not 37 4 Troubleshooting procedure If the air conditioner runs 38 5 Self diagnosis table 22 2 39 6 Inspection procedures corresponding to detail of trouble 40 1145 165 7 Phenomenon observed after shortcircuit wire breakage on sensor 43 8 Checking the indoor electrical equipment 44 9 How to make sure of wireless remote control 45 to read the model name Example SRK 19 C NS S Series code Cooling only type Product capacity Model name SRK Wall mounted type SRC Outdoor unit 1 SPECIFICATIONS 14 SRK T 165
8. pweassv _ 9 5558 oseaD varistor 1 _ fe rusecuRREN 1 _ d 561 rockera aileme sosa 1 23 24 25 jom 26 Fom Z7 RMC 021CR LABEL MODEL CRvcomFOzck ABELMODELNAME a 10 fi 12 EE 5 36 17 19 19 2 24 25 26 p E 1 p EH RESIDENTIAL AIR CONDITIONING TECHNICAL MANUAL amp PARTS LIST Because of our policy of continuous improvement we reserve the right to make changes in all specifications without notice Copyright MITSUBISHI HEAVY INDUSTRIES LTD
9. 2 20211 JerackeTworor 3 J af 2 apewa ao ___ 2 9 ___ Harness assy 1 2 402 Harness assy 2 2 wA L LL ___ 400 JoraceTPaere af J a 2 s J af a a Ss 2006 ose 3 pr q _____ JocarnGpiane sew 120201 3 a a 295202 erackermororw J af 7 14 SRK T 165 SRK25CNS S3 S4 S5 S7 END ITEM NO RMAO002F063AD 063AF 063AG 063AJ Recommendable Purchased Q ty sume ut fma 3020 cover assvrrey 1 a a SS uo Row uD A a a SOS x 1 a a a 2 120219 HOLDER FUTER oora screw re L LL _ 1145 165 14 SRK T 165 HEAT EXCH amp CONTROL CRAEO290
10. Conventionally operate the wireless remote control by ies RO3 AAA Micro x2 pieces in the body regularly holding in your hand Fit the poles with the indication marks amp without Avoid installing it on a clay wall etc fail N CAUTION Do not use new and old batteries together Earthing work Earth work shall be carried out without fail in order to prevent electric shock and noise generation The connection of the earth cable to the following substances causes dangerous failures therefore it shall never be done City water pipe Town gas pipe TV antenna lightning conductor telephone line etc Trial run and operation CD Conduct trial run after confirming that there is no gas leaks When conducting trial run set the remote control thermostat to continuous operation position However when the power source is cut off or when the unit s operation switch is turned off or was turned to fan operation position the unit will not go into operation in order to protect the compressor 3 Explain to the customer on the correct usage of the air conditioner in simple layman s terms 4 Make sure that drain flows properly Installations test check points Check the following points again after completion of the installation and before turning on the power Conduct a test run again and ensure that the unit operates properly At the same time explain to the customer how to use the unit and how to take care
11. Is AC 220V applied between on the indoor terminal block Defective indoor PCB Check crossover wires YES Defective outdoor sub PCB 1145 165 Insufficient refrigerant amount Faulty power transistor Broken compressor wire 1 Trouble of outdoor un it Service valve close Defective EEV Defective outdoor PCB Is the power supply voltage OK Check power supply Proper power supply voltages are as follows YES At the power supply outlet AC 220V 198 242V AC 230V 207 253V Is the service valves of the outdoor Open the service valves AC 240V 216 264V unit open YES Is the refrigerant amount normal Adjust the refrigerant amount properly YES Does electronic expansion valve operate properly Does 52X1 relay operate properly YES Defective outdoor Judgment of refrigerant quantity PCB 1 Phenomenon of insufficient refrigerant a Loss of capacity Defective EEV or outdoor PC Is the connector for compressor connection good Correct connection YES Is the checked result of insulation resistance and coil resistance of compressor motor OK Replace compressor Defective outdoor main PCB 14 SRK T 165 7 Phenomenon observed after shortcircuit wire breakage on sensor Indoor unit a Sensor Operation Phenomenon mode Shortcircuit Disconnected wire Room temperature Sensor Cooling Rele
12. POWER SOURCE 220 240V 50Hz PRINTED CIRCUIT BOARD INDOOR UNIT Model SRC25CNS S MEANING OF SYMBOLS SYMBOL PARTS NAME CM COMPRESSOR MOTOR VELLOWI OR ORANGE YIGN GREEN CM FMo DS CC CFO 95 RUNNING CAPACITOR FOR COMPRESSOR RUNNING CAPACITOR FOR FAN MOTOR TERMINAL BLOCK POWER SOURCE 220 240V 50Hz INDOOR UNIT PRINTED CIRCUIT BOARD 4 PIPING SYST Model SRK19CNS S Indoor unit EM Flare connecting Humidity sensor Room temp sensor Heat exchanger Gas pipe 915 88 Flare connecting Model SRK25CNS S Indoor unit Flare connecting Humidity sensor Room temp sensor Heat exchanger Gas pipe 015 88 Flare connecting 14 SRK T 165 Cooling cycle Outdoor unit Service valve n Outdoor air N temp sensor Discharge pipe temp sensor Heat Ns exchanger Heat exchanger RS lt sensor Accumulator Compressor Service valve Liquid Capillary tube Electronic expansion valve Strainer Cooling cycle Outdoor unit Service valve 0 Outdoor air Ns temp sensor Discharge pipe temp sensor Heat M exchanger Heat exchanger x Sensor Accumulator Compressor Service valve Liquid Capillary tube Electronic 7 expansion valve Strainer S
13. Is DC fan motor resistance value good Disconnect the fan motor YES Replace indoor fan motor Notes 1 See page 44 for the DC fan motor and indoor PCB check procedure After making sure the DC fan motor and indoor PCB are normal connect the connectors and confirm that the fan motor is turning If power is turned on while one or the other is broken down it could cause the other to break down also 2 14 SRK T 165 Over heat of compressor Is discharge pipe sensor Connector connection check resistance resistance value good value check replacement of discharge pipe page 40 sensor YES Is sufficient quantity of refrigerant circulated YES Defective outdoor main PCB Does trouble persist after charging gas YES Clogged capillary tube or strainer defective EEV etc C Error of signal transmission power cable defective indoor 1 m error persist alter power Trouble by transient cause not unit trouble reset Correct improper wire connection on indoor outdoor unit Defective indoor PCB Check if there are any places where gas is leaking Are the lines connecting the indoor and outdoor units connected normally Is DC 0 Approx 20V detected between 2 3 terminals outdoor terminal block Is DC 0 Approx 20V detected between 2 G terminals on indoor terminal block Check crossover wires
14. Left Approx 20 Center Right Approx 20 Right Approx 45 Right end installation Left Approx 45 Left Approx 30 Left Approx 20 Center Right Approx 20 Left end installation Left Approx 20 Center Right Approx 20 Right Approx 309 Right Approx 45 c Swing i Swing flap ii Swing louver Flap moves in upward and downward Louver moves in left and right directions continuously directions continuously In COOL DRY FAN operation Approx 10 Approx 60 d Memory flap Flap or Louver stopped When you press the AIR FLOW UP DOWN or LEFT RIGHT button once while the flap or louver is operating it stops swinging at the position Since this angle is memorized in the microcomputer the flap or louver will automatically be set at this angle when the next operation is started e When not operating The flap returns to the position of air flow directly below when operation has stopped 6 3D auto operation 14 SRK T 165 Control the flap and louver by 3D AUTO button on the wireless remote control Air flow selection and air flow direction are automatically controlled allowing the entire indoor to efficiently conditioned a During Cooling Including auto cooling i Air flow selection is determined according to indoor temperature and setting temperature Operation mode Air flow selection AUTO HI MED LO Cooling Indoor temp Setti
15. 1221 Suidid 10 E E a Jp YY f B Bis L SSOTOITAA D ISZ 068 ND 1 Aj apis 3uidid 20 5 Suum d S99 Suidid 10 uo J Suidid 20H 2 c 6699 a p la 8 6 88 S19 L 3097405 104 lt 607 665 66S 9 6188 14 SRK T 165 Model SRK25CNS S 09 z 1 e e 255 17 03405 9 0UI9I 55 91 8 apis 3uidid 10 9 10719010 A 9 690 uo S99 eA uo 99 Burdid pmbrT 21814 8 6 88619 1191005 JUMAA UAM AIS pue 22045 a a 761 n 3 0L 8 8 SEED 21041016 IXS 9 5 LL je fy 1
16. 19 Series Room temperature lt lt 25 5 C 25 5 C Room temperature Operation mode Dehumidifying Cooling 25 Series Cooling 27 5 25 5 Indoor air temperature 19 5 Outdoor air temperature The unit checks the temperature every 30 minutes after the start of operation and if the result of check is not same as the previous operation mode changes the operation mode When the unit is started again within one hour after the stop of automatic operation or when the automatic operation is selected during cooling or dehumidifying operation the unit is operated in the previous operation mode Setting temperature can be adjusted within the following range There is the relationship as shown below between the signals of the wireless remote control and the setting temperature Signals of wireless remote control Display 6 5 4 3 2 1 0 1 2 3 4 5 6 Setting temperature Cooling Dehumidifying 18 19 20 21 22 23 24 25 26 27 28 29 30 1145 165 11 Protective control function a b c d e Frost prevention for indoor heat exchanger During cooling or dehumidifying i Operating conditions 1 Indoor heat exchanger temperature Th2 is lower than 2 5 C 2 3 minutes elapsed after the start of operation ii Detail of frost prevention operation Compressor OFF Indoor fan Protects the fan tap just before fros
17. 25 Series Removing re Air inlet panel e Remove the air inlet panel E Air filter Remove screw A 2pcs screw B 3pcs fixing to the front panel e Remove the 3 latches in the upper section of the front panel and then remove the front panel from the unit E r Installing 6 Remove air filter a D Front panel Cover the unit with the front panel Screw Screw e Tighten screw A 2pcs screw B 3pcs to fix the Sees Sc d bs front panel Install the air filter Install the air inlet panel Open close and detachment attachment of air inlet panel D To open pull the panel at both ends of lower part and release latches then pull up the panel until you feel resistance The air inlet panel stops at approx 60 open position 2 To close hold the panel at both ends of lower part to lower downward and push it slightly until the latch works then push the center portion slightly 3 To remove pull up the panel to the position shown in right il lustration and pull it toward you 4 To install insert the air inlet panel arm into the slot on the front Approx 80 panel from the position shown in right illustration hold the panel at both ends of
18. 8 second 3 minutes forced operation When the compressor begins operating the thermal operation is not effective for 3 minutes so operation continues as is in the operation mode After 3 minutes has passed the thermal operation is effective However stopping the compressor via a stop signal or protection control has priority Abnormality of outdoor unit When an abnormal stop occurs 3 time with automatic recovery within 20 minutes after the outdoor unit s power supply was turned on f h 14 SRK T 165 Compressor overheat protection If the discharge pipe temperature sensed by Th3 exceeds the set temperature value the compressor stops If the temperature is 95 C or lower after a 3 minute delay it starts again but if this function is reactivated again within 60 minutes it results in an abnormal stop RUN light ON TIMER light 5 time flash Operation possible Abnormal stop 19 type 95 110 25 type 95 115 Discharge pipe temperature C Serial signal transmission error protection i Purpose Prevents malfunction resulting from error on the indoor lt gt outdoor signals ii Detail of operation If the compressor is operating and a serial signal cannot be received from the indoor control with outdoor control having serial signals continuously for 1 minute and 55 seconds the compressor is stopped After the compressor has been stopped it will be restarted after the compressor start delay if a
19. S4 55 S7 END ITEM RMAO02F062AD 062AF 062AG 062AJ e patname 1145 165 20 so 5001000 E 2 RKY 435A 003 GRILLE AIR IN TOP 3 RMA 435A 0100 PANEL 55 IN 4 RKY 437A 001 FILTER AIR 5 RKY 129A 012 CAP RKY 133A 008C PLATE ASSY ORNAMEN 011G 007 LABEL WIRING RMA 435A 009C GRILLE ASSY AIR OUT RKY 435A 002 GRILLE AIR OUT 436A 001 FLAP ASSY U 10 RMA 436A 003 FLAP ASSY L 11 12 RKY 436A 009 LOUVER ASSY 11 436A 011 ILOUVER 12 RKY 129A 011 PLATE CONNECTING 13 14 RKY 436A 009A LOUVER ASSY 13 RKY 436A 011 I LOUVER 14 RKY 129A 011 PLATE CONNECTING 15 RKW 935C 200 COLLAR 16 22 RKY 144A 010 LINK ASSY R 16 RKY 129A 009 JOINT R 17 RKY 129A 005 BRACKET MOTOR R 18 144A 001 LINK 19 RKY 144A 002 CRANK A 20 144A 003 CRANK B 21 RKY 144A 004 CRANK C 22 SSA 512T 096 MOTOR STEPPING 23 26 RKY 144A 011A LINK ASSY L 23 RKY 129A 010 JOINT L 24 RKY 129A 006 BRACKET MOTOR L 25 RKY 144A 004 CRANK C 26 SSA 512T 096 MOTOR STEPPING 27 RMA 504A 013 HARNESS ASSY 28 SSA 423A 102 HOSE DRAIN 29 SSA 326A 047 PLUG 30 RKY 111A 001A BASE ASSY 31 129A 002A PLATE BASE 32 RKY 129A 037 BRACKET ASSY U 33 RKY 1294 038 BRACKET ASSY L 34 SSA 923C 114 BEARING PLANE 85 SSA 431G 050A IMPELLER 36 SSA 512T 127A MOTOR DC 37 RKY 032A 001 PLATE INSTALLATION T 8 29 1 122A 0028 PAN
20. T gt ii Fan motor resistance check Measuring point Resistance when normal Notes 1 Remove the fan motor and measure it without power connected to it D 9 Red Black 20 MQ or higher 2 If the measured value is below the value when the motor is normal it means White Black 20kQ or higher that the fan motor is faulty 44 14 SRK T 165 9 How to make sure of wireless remote control Defective remote ontrol Is remote control normal Replace the display of indoor unit YES Again pushing operating switch 15 the unit operable with remote control Defective remote control Note 1 Check method of remote control a Press the reset ACL button of the remote control b If all LCD are displayed after display it is basically normal The figare below shows the SRK series Abnormality is not found Operating the unit NO Does ON OFF button of indoor unit operates 74 O Operating the unit Control problem on eo main unit 14 SRK T 165 46 14 SRK T 165 INDOOR UNIT SRK19CNS S3 S4 S5 S7 SRK25CNS S3 S4 S5 S7 OUTDOOR UNIT SRC19CNS S3 S4 S5 S7 SRC25CNS S3 S4 S5 S7 14 5 165 PANEL amp ASSY Vy 7 48 SRK19CNS S3
21. can cause fire Do not use the indoor unit at the place where water splashes may occur such as in laundries Since the indoor unit is not waterproof it can cause electric shocks and fire Do not install nor use the system close to the equipment that generates electromagnetic fields or high frequency harmonics Equipment such as inverters standby generators medical high frequency equipments and telecommunication equipments can affect the system and cause malfunctions and breakdowns The system can also affect medical equipment and telecommunication equipment and obstruct its function or cause jamming Do not place any variables which will be damaged by getting wet under the indoor unit When the relative humidity is higher than 80 or drainage pipe is clogged condensation or drainage water can drop and it can cause the damage of valuables Do not install the remote control at the direct sunlight It can cause malfunction or deformation of the remote control Do use the unit for special purposes such as storing foods cooling precision instruments and preservation of animals plants or art It can cause the damage of the items Do not install the outdoor unit in a location where insects and small animals can inhabit Insects and small animals can enter the electric parts and cause damage or fire Instruct the user to keep the surroundings clean Do not use the base flame for outdoor unit which is corroded or
22. cd 7 ATN pp N J a B 5 5 1 gt 8 5 e 2 i 9104 1018 SIXTI Y 8 66 08 1274 019 8 901 988 901 OS 48 001 2984 ootA19S Ierd MAaIA 991 01 129 77 roy mo C gt 5 8601 C CA Str 79 61 r 0601 r 1145 165 2 Outdoor units Model SRC19CNS S eoeds uonejpejsur a 2014195 JO opis st 900 9 SMUN oup JOU jsnur joino 194014 Jo ut V jun ayy 2084 10 340971 p prejnorpuodrod 6228 39010 19440 yey t ur Kv spura 0 121905 st oq AYM aow JOU snu 109 Joqoue uy 5704 aq jun Z INO au
23. of the unit following the instruction manual After installation Test run The power supply voltage is correct as the rating Air conditioning operation is normal No gas leaks from the joints of the operation valve No abnormal noise Operation valve is fully open Water drains smoothly The pipe joints for indoor and outdoor pipes have been Protective functions are not working insulated The remote control is normal Operation of the unit has been explained to the customer Three minute restart preventive timer When the air conditioner is restarted or when changing the operation the unit will not start operating for approximately 3 minutes This is to protect the unit and it is not a malfunction 14 SRK T 165 7 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 1 Operation control function by remote control Remote control Operation section FAN SPEED button Each time the button is pushed the m indicator is switched over in turn HI POWER ECONO button This button changes the HIGH POWER ECONOMY mode OPERATION MODE select button Each time the button pushed the indicator is switched over in turn BE dEBH Press for starting operation press again s po 3D AUTO fors ing AIR FLOW UP DOWN button This button changes the air flow up down mode AIR FLOW LEFT RIGHT button This button changes the
24. or fire This appliance must be connected to main power supply by means of a circuit breaker or switch fuse 19 series 20A 25 series 25A with a contact separation of at least 3mm When plugging this appliance a plug conforming to the norm 1 60884 1 must be used Use the prescribed cables for electrical connection tighten the cables securely in terminal block and relieve the cables correctly to prevent overloading the terminal blocks Loose connections or cable mountings can cause anomalous heat production or fire Arrange the wiring in the control box so that it cannot be pushed up further into the box Install the service panel correctly Incorrect installation may result in overheating and fire Be sure to fix up the service panels Incorrect fixing can cause electric shocks or fire due to intrusion of dust or water Be sure to switch off the power supply in the event of installation inspection or servicing If the power supply is not shut off there is a risk of electric shocks unit failure or personal injury due to the unexpected start of fan Stop the compressor before removing the pipe after shutting the service valve on pump down work If the pipe is removed when the compressor is in operation with the service valve open air would be mixed in the refrigeration circuit and it could cause explosion and injuries due to abnormal high pressure in the cooling cycle Only use prescribed option parts The installation must
25. 1 Indoor units Model SRK19CNS S 1 1 LOUVER Ped M MOTOR IRELESS RECEIVE J LEFT PRINTED PORE CIRCUIT J u 3 SENSOR 5 FLAP M HEAT EXCHANGER 1 MOTOR SENSOR 1 1 HUMIDITY SENSOR U VARISTOR 5 WHITE aa YELLOW A FAN MOTOR T TERMINAL BLOCK TO OUTSIDE UNIT 14 SRK T 165 Model SRK25CNS S 14 SRK T 165 zl L DISPLAY MOTOR 8 CNE LEFT 5 LOUVER 1 PRINTED RIGHT CIRCUIT ROOM TEMP BOARD L 5 FLAP SENSOR E MOTOR t7 CNG CNX2 HEAT EXCHANGER pu dr 0 SENSOR 1 Hk HUMIDITY 2 SENSOR i I ERAT DEM INTERFACE KIT 15 ons mk 4 1 RED WHITE S N VARISTOR FUSE RED J P 3 15A zi mm FAN MOTOR H U HEAT Teck EXCHANGER LET Gg TO OUTSIDE UNIT 1145 165 2 Outdoor units Model SRC19CNS S MEANING OF SYMBOLS SYMBOL PARTS NAME COLOR 5 COLOR COMPRESSOR MOTOR BLACK WHITE BL BLUE ELECTRIC EXPANSION VALVE COIL YELLOW COIL OR ORANGE Y GN GREEN RD RED Th2 OUTDOOR AIR TEMP SENSOR RUNNING CAPACITOR FOR FAN MOTOR 1 2 TERMINAL BLOCK
26. 15 16 05 16 te 19 20 22 24 23 24 25 26 27 28 29 30J 31 32 32 38 83 54 55 57 TIN z 9 N O gt CD 14 SRK T 165 PANEL amp FAN ASSY CRBEOS39 7 14 SRK T 165 SRC19CNS S3 S4 S5 S7 END ITEM RMCO003F062AD 062 R Purchased Gy 062AJ Pis sn PANEL ASSYFRONT j a a SS afwer o05F paver _ yf P SSS 00 j pap r r PANELAssyrop A af a a f ofRwc asao L L L L EC Racino ouarorw 3 L L L L L ____ 1168 00709 _ C morona TI yf a L sss crap oorabjwurta L L T L L L TL I __ psckEwcRsrs s L Rwa pines 3 L C essem 3 3 2 4 14 SRK T 165 HEAT EXCH amp CONT
27. AME j CD 14 SRK T 165 PANEL amp FAN ASSY CRAEO240 1145 165 SRK25CNS S3 54 55 57 END ITEM NO RMAO002F063AD 06 Recordable Purchased Qr 063AJ capies E E _ Aweso enera 0 wesma CS wa af J fa a 7 2006 3 ereas j J 2 3 Ss C dewa a af af 1 3 3 209 j 4 af L ar af af a Ss jower 209 pare connec j fa a u eowosc2o ___ 200 O J L 4 7 210 a 4 i jj qp aew O L fa a Ss ao J L af a q Ss 2 3 3 _2 FORLOUVERILEFT FLAP 22 25 ranas 3 af fa a O 4
28. EL ASSY FRONT AI 4 por EET gr 348 5xH339 t2 OR LOUVER RIGHT FLAP OR LOUVER LEFT OR IMPELLER 14 SRK T 165 SRK19CNS S3 S4 S5 S7 END ITEM NO RMAO002F062AD 062AF 062AG 062AJ 100 soo 1000 J 2 1 HOLDeRAssv J fq 4 s semences HOLDERFLTER 3 J fa 4 Ss mew af af a a Ss __ j a a Ti fscrewrar 1145 165 14 SRK T 165 HEAT EXCH amp CONTROL CRAEO289 1145 165 SRK19CNS S3 54 S5 S7 END ITEM NO RMA002F062AD 062AF 062AG 062AJ Part No Hmmm 10 50 100 500 1000 1 J 1 24 zmwasspom _ wv 40 a 316A 002 JowsTRIBUTORAssY _ peasy 1 UNION SOLDER unono L 316A 002 RMA 138 SSA a
29. It is necessary to correct the cooling capacity in relation to the one way piping length between the indoor and outdoor units Piping length 5 How to obtain the cooling capacity Example The net cooling capacity of the model SRK19CNS S with the piping length of 15m indoor wet bulb temperature at 19 0 C 5168 W and outdoor dry bulb temperature 35 C is Net cooling capacity 5300 Xx 0 975 x 1 0 SRKI9CNS S Length 15m Factor by air temperatures 16 6 APPLICATION DATA When install the unit be sure to check whether the selection of installation place power supply specifications usage limitation piping length height differences between indoor and outdoor units power supply voltage and etc and installation spaces Safety precautions 14 SRK T 165 WALL TYPE AIR CONDITIONER R410A REFRIGERANT USED e Read the Safety precautions carefully first of all and strictly follow it during the installation work in order to protect yourself The precautionary items mentioned below are distinguished into two levels WARNING CAUTION A WARNING Wrong installation would cause serious consequences such as injuries or death CAUTION Wrong installation might cause serious consequences depending on circumstances Both mentions the important items to protect your health and safety so strictly follow them by any means Be sure to confirm no anom
30. Manual No 14 SRK T 165 RESIDENTIAL AIR CONDITIONING TECHNICAL MANUAL amp PARTS LIST WALL MOUNTED TYPE RESIDENTIAL AIR CONDITIONERS Split system air cooled cooling only type SRK19CNS S SRK25CNS S MITSUBISHI A HEAVY INDUSTRIES LTD 1145 165 144 SRK T 165 CONTENTS 1 SPECIFICATIONS 4 2 EXTERIOR DIMENSIONS uidi lt lt 6 Indoor 10 ET IUE 6 2 QO ldoor S 8 3 Wireless remote control a a 10 3 BLECTRIGAL WIRING 11 1 Indoor units J 11 PNE SUE RR RERO 13 4 PIPING SYSTEM 14 5 RANGE OF USAGE amp LIMITATIONS 15 6 APPLICATION 17 7 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 28 1 Operation control function by remote control _ 28 2 Unit ON OFF DUTON A m 29 3 Auto restart function a 30 4 Custom cord switching procedure 30 5 Flapandlouver Control
31. ROL O d Eat TH3 21 25 15 16 17 B mr 3 ell 10 CONTROL ASSY E CRBEOS94 1145 165 SRC19CNS S3 54 55 57 END ITEM NO RMCO003F062AD 062AF 062AG 062AJ 10 30 50 100 3 a BEDV S o olssa asra oosa straner 7 3158 008 alsa sear con souenow x 2017001 compressor assy __ 0 3 2 6 4 0 L300 FOR EEV O gt CD m lt 1 1 2 NH s e __ ees soaa 8004 HARNESS assy 1 assassin SENSOR Assy 1 5520 176F CAPACITOR RUNNING 3 __ 5528 CAPACITOR RUNNING afre onr oora SPRINGLEAF se 0216 ABEL MODELNAWE
32. air flow left right mode TEMPERATURE button This button sets the room temperature This button changes the present time and TIMER time 7 TIMER 30 AUTO ON TIMER button pen 3D AUTO button SLEEP This button selects ON TIMER operation This button sets 3D AUTO operation CLEAN OFF TIMER button This button selects OFF TIMER operation RESET switch Switch for resetting microcomputer and setting time CANCEL button This button cancels the ON timer OFF timer and SLEEP operation SLEEP button This button changes to SLEEP operation The above illustration shows all controls but in practice only the relevant parts are shown CLEAN switch This switch changes the CLEAN mode Unit display section 19 Series RUN light green Illuminates during operation Blinks at the CLEAN operation 3 sec CLEAN operation Unit ON OFF button In emergencies this button can be used for turning on off the unit when remote control is not available Remote control signal receiver OFF ON OFF 1 860 20 000 Illuminates during 3D AUTO operation HI POWER light green TIMER light yellow Illuminates during HIGH POWER operation Illuminates during TIMER operation 1145 165 25 Ser
33. allation board 4dia by 25mm Donner rear 12 82 0N Wood screw Torque wrench 1 4 82kgf m for remote control switch holder 3 5dia by 16mm Hole core drill 65mm in diameter Baterry AAA Micro 1 5V Wrench key Hexagon 4m m Air cleaning filters Vacuum pump Filter holders N Vacuum pump adapter Attached to the front panel of the indoor unit Designed specifically Anti reverse flow type for R410A Option parts Gauge manifold Designed specifically for RA10A Designed specificall Sealing plate Change hose For RAIOA 1 Sleeve Designed specifically Flaring tool set for R410A Inclination plate Gas leak detector Designed specifically Putty for R410A Gauge for projection adjustment Used when flare is Drain hose extention hose made by using conventional flare tool Piping cover Pipe bender for insulation of connection piping CD Where there is no obstructions to air flow and where cooled cm Right air can evenly distributed _ side A solid place where the unit or the wall will not vibrate ret side 10 3 where there will be enough space for servicing Where space mentioned right can be secured 5 Where wiring and the piping work will be easy to conduct 5 The place where
34. aly on the equipment by commissioning after completed installation and explain the operating methods well as the maintenance methods of this equipment to the user according to the user s manual Keepthe installation manual together with user s manual at a place where any user can read at any time Moreover if necessary ask to hand them to a new user Forinstalling qualified personnel take precautions in respect to themselves by using suitable protective clothing groves etc and then perform the installation works Please pay attention not to fall down the tools etc when installing the unit at the high position If unusual noise can be heard during operation consult the dealer The meanings of Marks used here are shown as follows 9 Never do it under any circumstances Always do it according to the instruction WARNING Installation must be carried out by the qualified installer If you install the system by yourself it may cause serious trouble such as water leaks electric shocks fire and personal injury as a result of a system malfunction Do not carry out the installation and maintenance work except the by qualified installer Install the system in full accordance with the installation manual Incorrect installation may cause bursts personal injury water leaks electric shocks and fire Be sure to use only for household and residence If this appliance is installed in
35. ase of continuous compressor operation command Continuous compressor operation command is not released Heat exchanger Coolin Syst b Continiuous compressor operation command is not released stem can be operated normally ee sensor 9 P y Anti frosting Humidity sensor Cooling Refer to the table below Refer to the table below Humidity sensor operation Humidity sensor element Connector CNF Failure mode Control input circuit resding Air conditioning system operation D Disconnected wire 2 Disconnected wire Humidity reading is 0 Anti condensation control is not done 170 Disconnected wire are shot vas 22 d 2 Humidity reading is 100 Anti condensation control keep doing AG circuited Remark Do not perform a continuity check of the humidity sensor with a tester If DC current is applied it could damage the sensor b Outdoor unit Humidity sensor assembly Operation Phenomenon Sensor Shortcircuit Disconnected wire Heat exchanger Cooling System can be operated normally Compressor stop sensor Ourdoor air temperature sensor Cooling System can be operated normally Compressor stop Discharge pipe TN sensor modes Compressor stop Compressor stop 1145 165 8 Checking the indoor electrical equipment a Indoor PCB check procedure Is
36. ation can cause condensation which can lead to moisture damage on the ceiling floor furniture and any other valuables When perform the air conditioner operation cooling or drying operation in which ventilator is installed in the room In this case using the air conditioner in parallel with the ventilator there is the possibility that drain water may backflow in accordance with the room lapse into the negative pressure status Therefore set up the opening port such as incorporate the air into the room that may appropriate to ventilation For example Open the door a little In addition just as above so set up the opening port if the room lapse into negative pressure status due to register of the wind for the high rise apartment etc Be sure to perform air tightness test by pressurizing with nitrogen gas after completed refrigerant piping work If the density of refrigerant exceeds the limit in the event of refrigerant leakage in the small room lack of oxygen can occur which can cause serious accidents Do not install the unit in the locations listed below Locations where carbon fiber metal powder or any powder is floating Locations where any substances that can affect the unit such as sulphide gas chloride gas acid and alkaline can occur Vehicles and ships Locations where cosmetic or special sprays are often used Locations with direct exposure of oil mist and steam such as kitchen and machine pla
37. be carried out by the qualified installer If you install the system by yourself it can cause serious trouble such as water leaks electric shocks fire Be sure to wear protective goggles and gloves while at work Earth leakage breaker must be installed If the earth leakage breaker is not installed it can cause electric shocks Do not put the drainage pipe directly into drainage channels where poisonous gases such as sulphide gas can occur Poisonous gases will flow into the room through drainage pipe and seriously affect the user s health and safety This can also cause the corrosion of the indoor unit and a resultant unit failure or refrigerant leak Ensure that no air enters in the refrigerant circuit when the unit is installed and removed If air enters in the refrigerant circuit the pressure in the refrigerant circuit becomes too high which can cause burst and personal injury Do not bundling winding or processing for the power cord Or do not deforming the power plug due to tread it This may cause fire or heating Do not processing splice the power cord or share a socket with other power plugs This may cause fire or electric shock due to defecting contact defecting insulation and over current etc Do not vent R410A into the atmosphere R410A is a fluorinated greenhouse gas covered by the Kyoto Protocol with Global Warming Potential GWP 1975 Do not run the unit with removed panels or protections Touchi
38. bove in height is overhead sufficient space between the unit and wall shall be secured When the unit is installed the space of the following dimension and above shall be secured 1145 165 Limitations for one way piping length and vertical height difference 19 Series Total one way piping length 2 Vertical height difference h 25 Series Total one way piping length Vertical height difference h Max 25m 15 25m 15 Installation of installation board 19 Series Look for the inside wall structures Intersediats support or pillar and finally install INSTALLATION SPACE INDOOR UNIT FRONT VIEW o the unit after level surface has been checked Spacefor Indoor unit Space for 450 50 service Installation board service 100 m a Om 120 650 1205 220 450 220 S position 2 locations Mating mark for E 22 A level surface A NEZ 35 35
39. conds continuously 3 time within 40 minutes after initial detection of this anomalous temperature Or 25 or lower is detected for within 20 seconds after power ON RUN light keep flashing TIME Rlight 4 time flash 1145 165 8 1 Cautions a If you are disassembling and checking an air conditioner be sure to turn off the power before beginning When work ing on indoor units let the unit sit for about 1 minute after turning off the power before you begin work When work ing on an outdoor unit there may be an electrical charge applied to the main circuit electrolytic condenser so begin work only after discharging this electrical charge to DC 10 V or lower b When taking out printed circuit boards be sure to do so without exerting force on the circuit boards or package components c When disconnecting and connecting connectors take hold of the connector housing and do not pull on the lead wires 2 Items to check before troubleshooting a Have you thoroughly investigated the details of the trouble which the customer is complaining about b Is the air conditioner running Is it displaying any self diagnosis information c Is a power supply with the correct voltage connected d Are the control lines connecting the indoor and outdoor units wired correctly and connected securely e Is the outdoor unit s service valve open 3 Troubleshooting procedure If the air conditioner does
40. damaged due to long periods of operation Using an old and damage base flame can cause the unit falling down and cause personal injury Do not use any materials other than a fuse with the correct rating in the location where fuses are to be used Connecting the circuit with copper wire or other metal thread can cause unit failure and fire Do not touch any buttons with wet hands It can cause electric shocks Do not touch any refrigerant pipes with your hands when the system is in operation During operation the refrigerant pipes become extremely hot or extremely cold depending the operating condition and it can cause burn injury or frost injury Do not touch the suction or aluminum fin on the outdoor unit This may cause injury Do not put anything on the outdoor unit and operating unit This may cause damage the objects or injury due to falling to the object Do not use the unit for special purposes such as storing foods cooling precision instruments and preservation of animals plants or art Do not clean up the unit with water 1145 165 Standard accessories Necessary tools for the installation work Installation kit Accessories for indoor unit Plus headed driver Phillips screwdriver Installation board Knife Attached to the rear of the indoor unit Saw Wireless remote control Tape measure Remote control holder Hammer Tapping screws Sp h for inst
41. e ith i i Y with insulation materials b Insulation Cover the exterior portion with cov ering tape and shape the piping so it will match the contours of the route that the piping to take Also fix the wiring and pipings to the wall with clamps Refrigerant piping Electrical wiring Covering tape Drain hose Tapping screw How to relocate or dispose of the unit Inorder to protect the environment be sure to pump down recovery of refrigerant Pump down is the method of recovering refrigerant from the indoor unit to the outdoor unit when the pipes are removed from the unit lt How to pump down gt Connect charge hose to check joint Liquid side Close the liquid valve with hexagon wrench key Gas side Fully open the gas valve Carry out cooling operation If indoor temperature is low operate forced cooling operation 3 After low pressure gauge become 0 01MPa close the gas valve then stop cooling operation 2 25 Series Forced cooling operation Turn on a power supply again after a while after turn off a power supply Then press continually the ON OFF button 5 seconds or more 19 Series Unit ON OFF button I Unit ON OFF button 6 1145 165 Installation of remote control switch Mounting method of battery Fixing to pillar or wall e Uncover the remote control switch and mount the batter
42. en for the short piping If the piping length is 7 5m to 15m additional refrigerant is not required 1145 165 SRK25CNS S Item Indoor unit SRK25CNS S Outdoor unit SRC25CNS S Cooling capacity 1 7400 Power supply 1 Phase 220 240V 50Hz nee Cooling kw 2 065 consumption Running Coolin 9 2 Operation current 9 data 1 Inrush current 43 7 COP Cooling 3 58 Noise Sound level dB A Hi 50 Me 46 Lo 43 55 Cooling level Power level dB 60 67 Exterior dimensions Height x Width x Depth mm 318 x 1098 x 248 750 x 880 88 x 340 Exterior appearance Fine snow Stucco white Munsell color 8 0Y 9 3 0 1 near equivalent 4 2Y 7 5 1 1 near equivalent Net weight kg 14 5 53 Compressor type 8 Q ty PA270G2CS 4MUL1 Rotary type x 1 Motor Starting method kW PSC Refrigerant oil 0 0 85 ESTER OIL VG74 Refrigerant I equipment Refrigerant 4 kg R410A 1 05 Pre Charged up to the piping length of 7m Heat exchanger Louver amp inner grooved tubing Aluminium heat exchanger Refrigerant control Capillary tubes Electronic expansion valve Deice control Microcomputer control Fan type amp Q ty Tangential fan x 1 Propeller fan x 1 Air handli Motor w 56 90 roana ng Air flow Cooling m min Hi 20 0 17 0 Lo 14 0 60 equipment Fres
43. es is the earth conductor yellow green 1 5 Section of copper wire mm Connect the connection wire securely to the terminal block If the wire is not affixed completely contact will be poor and it is danger ous as the terminal block may heat up and catch fire Take not to confuse the terminal numbers for indoor and outdoor connections Earth lead wire shall be longer than the other lead wires for the electrical safety in case of the slipping out of the cord from the anchor age The earth line of power cord must be properly earthed Affix the connection wire using the wiring clamp Fix the connecting wire by wiring clamp D Attach the lid Close the air inlet panel 14 SRK T 165 19 Series 25 Series The screw of the service panel is tightened securely Lid 1r 5 A WARNING 8 Service panel M Terminal block Terminal block os Wiring Clamp Shaping the pipe 3 Taping of the exterior Pipe Drain hose Hold the bottom
44. etected for 5 seconds continuously 3 times within Keeps 2 time wire poor connector 40 minutes after initial detection of this anomalous temperature exchanger 3 flashing flash senor erior connection Or 55 or lower is detected for within 20 seconds after power Outdoor main PCB is faulty The compressor is stopped Broken discharge pipe sensor 25 C or lower is detected for 5 seconds continuously 3 times within 40 Keeps 4 time Discharge pipe wire poor connector minutes after initial detection of this anomalous temperature flashing flash sensor error connection Or 25 C or lower is detected for within 20 seconds after power ON Outdoor main PCB is faulty The compressor is stopped 2 time Trouble of Broken compressor wire When there is an emergency stop caused by trouble in the outdoor unit ON outdoor unit Compressor blockage or the input current value is found to be lower than the set value flash P 8 The air conditioner stops ON 5 time Over heat of Gas shortage defective 5 When value of the discharge pipe sensor exceeds set value flash compressor valve Sensor Service The air conditioner stops 6 ti Defective power supply When there is no signal between the indoor PCB and outdoor PCB for time si 10 seconds or longer when th er is turned on or when there is no ON Error of signal Broken signal wire defective when n 5 flash tra
45. h air intake Not possible Shock 8 vibration absorber Air filter Quality Quantity Polypropylene net washable x 2 Cushion rubber for compressor Operation switch Wireless remote control Operation Room temperature control Microcomputer thermostat control Operation Display RUN Green TIMER Yellow HI POWER Green 3D AUTO Green Safety devices Compressor overheat protection Frost protection Serial signal error protection Fan motor error protection Refrigerant piping size O D mm Liquid line 6 35 1 4 Gas line 15 88 5 8 Connecting method Flare connecting 0 70 Installation Attached length of piping m Gas line 0 63 data Insulation for piping Necessary Both sides independent Refrigerant line one way length Max 25 Vertical height difference between m Max 15 Outdoor unit is higher outdoor unit and indoor unit Max 15 Outdoor unit is lower Drain hose Connectable VP 16 Power cable 2m 3 Cores wih Earth Recommended breaker size A 20 7 Size x Core number 1 5mm x 4 cores Including earth cable Connection wiring m Connecting method Terminal block Screw fixing type Accessories included Mounting kit Option parts Note 1 The data are measured at the following conditions The pipe length is 7 5m Item Indoor ai
46. hor Piping hole 65 Adjust so that board will be level by turning the board with the Unit mm standard hole as the center 14 SRK T 165 Drilling of holes and fixture sleeve Option parts Drill a hole with 965 whole core drill Adjusting sleeve length Cut off the sleeve collar in case of sm N i drawin ipin EP 250 out to Rom E Cut off the sleeve 5 collar that can be Wall thickness N seen from beneath 15 Indoor side Outdoor side the unit Note 1 Drill a hole with incline of 5 degree from indoor side to outdoor side Install the sleeve Inserting sleeve Sleeve Inclined Sealing plate 44 View of sleeve when installed Inclined DI to flange tighten Sleeve Sealing Paste plate Indoor side Outdoor side Indoor side Outdoor side Preparation of indoor unit CD Mounting of connecting wires Open air inlet panel b Remove the lid Remove the wiring clamp d Connect the connecting wire securely to the terminal block Use cable for interconnection wiring to avoid loosening of the wires CENELEC code for cables Required field cables HOSRNRAGI 5 Example or 2451EC57 H Harmonized cable type 05 300 500 volts R Natural and or synth rubber wire insulation Polychloroprene rubber conductors insulation R Standed core 4or5 Number of conductors G One conductor of the cabl
47. ies ON OFF e c c s RUN TIMER HI POWER 3D AUTO Unit ON OFF button RUN light green In emergencies this button can be used for turning on off the unit when remote control is not Illuminates during operation available Blinks at the CLEAN operation 3 sec ON CLEAN operation Remote control signal receiver OFF 1 sec 3D AUTO light green Illuminates during 3D AUTO operation HI POWER light green Illuminates during HIGH POWER operation TIMER light yellow Illuminates during TIMER operation 2 Unit ON OFF button When the remote control batteries become weak or if the remote control is lost or malfunctioning this button may be used to turn the unit on and off a Operation Push the button once to place the unit in the automatic mode Push it once more to turn the unit off b Details of operation The unit will go into the automatic mode in which it automatically determines from indoor temperature as detected by sensor whether to go into the cooling or thermal dry modes Room temperature setting Fan speed Flap Louver Timer Switch operation mode COOL DRY About 24 Continuous 19 Series 25 Series i Unit ON OFF button Unit ON OFF button 3 Auto restart function 14 SRK T 165 a Auto restart function records the operationa
48. ifically for 76cmHg 7 R410A Handle Lo Handle Hi Charge hose Designed specifically for R410A Vacuum pump adapter Anti reverse flow type Designed specifically for R410A Operation valve three way valve Operation valve cap Check joint Vacuum pump Charge hose Designed specifically for R410A Securely tighten the operation valve cap and the check joint blind nut after Operation valve cap tightening torque Check joint blind nut tightening torque N m mm e Please use an anti reverse flow type vacuum pump adapter 963 5 1 4 so as to prevent vacuum pump oil from running back into 9 5 20 30 2 3 8 system running back into an air conditioning 912 7 1 2 25 35 system may cause the refrigerant cycle to break down 915 Additional refrigerant charge Less than 15m Not required More than 15m 20g m Additional refrigerant Insulation of connecting portion Cover the connection portion of the refrigerant piping with the pipe cover and seal them If neglecting to do so moisture occurs on the piping and water will drip out Finishing and fixing Tie up the piping with wrapping tape and shape it so that it conforms to which the pipe is attached D Fix them with clamps as right figure 88 5 8 30 40 To cover the connecting portion with insulation 3 materials cut upper portion and then seal it Vinyl tap
49. inferior environment such as machine shop and etc it can cause malfunction Use the original accessories and the specified components for installation If parts other than those prescribed by us are used it may cause water leaks electric shocks fire and personal injury Install the unit in a location with good support Unsuitable installation locations can cause the unit to fall and cause material damage and personal injury Ensure the unit is stable when installed so that it can withstand earthquakes and strong winds Unsuitable installation locations can cause the unit to fall and cause material damage and personal injury Ventilate the working area well in the event of refrigerant leakage during installation If the density of refrigerant exceeds the limit please consult the dealer and install the ventilation system otherwise lack of oxygen can occur which can cause serious accident When installing in small rooms take prevention measures not to exceed the density limit of refrigerant in the event of leakage referred by the formula accordance with ISO5149 If the density of refrigerant exceeds the limit please consult the dealer and install the ventilation system otherwise lack of oxygen can occur which can cause serious accident After completed installation check that no refrigerant leaks from the system If refrigerant leaks into the room and comes into contact with an oven or other hot surface poisonous gas is pr
50. l status of the air conditioner immediately prior to be switched off by a power cut and then automatically resumes operations after the power has been restored b The following settings will be cancelled Jumper wire J170 i Timer settings 1 HIGH POWER operations Notes 1 Auto restart function is set at on when the air conditioner is shipped from the factory Consult with your dealer if this function needs to be switched off 2 When power failure ocurrs the timer setting is cancelled Once power is resumed reset the timer 3 If the jumper wire 170 AUTO RESTART is cut auto restart is disabled See the diagram at right Jumper wire J171 4 Custom cord switching procedure If two wireless remote control are installed in one room in order to prevent wrong operation due to mixed signals please modify the printed circuit board in the indoor unit s control box and the remote control using the following procedure Be sure to modify both boards If only one board is modified receiving and operation cannot be done a Modifying the indoor printed circuit board Take out the printed circuit board from the control box and cut off jumper wire J171 using wire cutters After cutting of the jumper wire take measures to prevent contact with the other the lead wires etc b Modifying the wireless remote control en ul 1 CWO FLAP LOUVER 1 FLAP LOUVER CNF HUMIDITY 5 te
51. lower part lower it downward slowly then push it slightly until the latch works and further push the center portion slightly To remove To install 1145 165 Installation of outdoor unit Make sure that the unit is stable in installation Fix the unit to stable base When installing the unit at a higher place or where it could be toppled by strong winds secure the unit firmly with foundation bolts wire etc 3 Perfrom wiring making wire terminal numbers conform to terminal numbers of indoor unit terminal block 4 Earth lead wire shall be longer than the other lead wires for the electrical safety in case of the slipping out of the cord from the anchorage Connect using ground screw located near mark SRC19CNS S SRC25CNS S Outdoor unit 1 PIN 3 Indoor unit T L N 1 21 3 li When wire length exceeds 30m use 2 0 mm wires 3 S When wire length exceeds Ouidoor unit 30m use 2 0 mm wires Safety breaker 20A Earth Earth leakage circuit breaker Safety Earth 11213 breaker Power supply Indoor unit 20A Earth POWER SUPPLY CODE leakage 3 m ircuit CENELEC code for cables requiring field
52. m kgfm Liquid side 14 0 18 0 1 4 1 8 Do not apply excess torque to flared nuts Otherwise the flared nuts may crack depending on the conditions and refrigerant leak may occur 69 52 34 0 42 0 3 4 4 2 9127 490 610 4 9 6 1 15 88 68 0 82 0 6 8 8 2 Tighten all flare nuts in the pipings both indoor and outside wall so as not to cause leak Connect operation valve charge hose manifold valve and vacuum pump as is illustrated right Open manifold valve handle Lo to its full width and perform vacuum or evacuation Continue the vacuum or evacuation operation for 15 minutes or more and check to see that the vacuum gauge reads 0 1MPa After completing vacuum operation close the Lo handle and stop operation of the vacuum pump 5 After completing vacuum operation fully open operation valve Both gas and liquid sides with hexagon headed wrench 8 Check for possible leakage of gas in the connection parts of both indoor and outdoor Since the system uses check joints differing in diameter from those found on the conventional models a charge hose for R22 presently in use is not applicable Please use one designed specifically for RA10A two way valve uu adjustment Operation valve Operation valve size 14 SRK T 165 Compound pressure gauge Pressure gauge Operation valve cap Gauge manifold 0 1 Designed spec
53. n pan before drainage a Gutter 7 V Declining slope Inverted slipe Trap viai Pipes storage area Securing the indoor unit to the installation board Latch 2 locations Installing steps 1 Indoor unit 1 Hook the upper part of the indoor unit to the installation board Installation board Installation board Indoor unit base latch 2 The unit can be installed Wall simply by gently push ing in the lower part How to remove indoor unit from installation board Push up at the marked portion of the indoor unit base lower latch and slightly pull it toward you both right and left hand sides The indoor unit base lower latch can be removed from the installation board 2 Push up the indoor unit upward So the indoor unit will be removed from the installation board The marked portion of the Indoor unit bese lower latch 1145 165 Removal and installation of the front panel 19 Series Removing Remove the air inlet panel Remove 5 set screws Set Remove 4 latches in upper section Move the lower part of the panel forward and puch upwards to remove Installing Remove the air filter Cove the unit with the front panel Install the 4 latches in the upper section Tighten 5 set screws Install the air filter e Install the air inlet panel
54. n cause dropping water into the room and damaging personal property Be sure to install the drainage pipe with descending slope of 1 100 or more and not to make traps and air bleedings Check if the drainage runs off securely during commissioning and ensure the space for inspection and maintenance After maintenance all wiring wiring ties and the like should be returned to their original state and wiring route and the necessary clearance from all metal parts should be secured Secure a space for installation inspection and maintenance specified in the manual Insufficient space can result in accident such as personal injury due to falling from the installation place Take care when carrying the unit by hand If the unit weights more than 20kg it must be carried by two or more persons Do not carry by the plastic straps always use the carry handle when carrying the unit by hand Use gloves to minimize the risk of cuts by the aluminum fins Dispose of any packing materials correctly Any remaining packing materials can cause personal injury as it contains nails and wood And to avoid danger of suffocation be sure to keep the plastic wrapper away from children and to dispose after tear it up For installation work be careful not to get injured with the heat exchanger piping flare portion or screws etc Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them Insufficient insul
55. nes 1 H a P1171 eusros TC of 0172 omy Pi 2 FLAP LOUVER 1 CNK FLAP LOUVER CNF HUMIDITY D 6 O H98 1999 16108 nnn C L 3 SPITIC mnc EN P113 0 2G L T um Luc i Remove the battery ii Cut the jumper wire shown in the figure at right 1145 165 5 Flap and louver control Control the flap and louver by AIR FLOW UP DOWN and 4 LEFT RIGHT button on the wireless remote control a Flap Each time when you press the AIR FLOW UP DOWN button the mode changes as follows eee c M Gl 4 1 Flap stopped Swing Angle of Flap from Horizontal Remote control display Al Al C COOL DRY FAN Approx 5 10 Approx 15 20 30 45 Approx 60 Note 1 Values in are for the 25 Series b Louver Each time when you press the AIR FLOW 4 LEFT RIGHT button the mode changes as follows Louver stopped x A 454 4 4 Swing Spot Wide Angle of Louver Remote control J J J J display 44 4 v V Center installation Left Approx 45
56. ng rotating equipments hot surfaces or high voltage parts can cause personal injury due to entrapment burn or electric shocks Do not perform any change of protective device itself or its setup condition The forced operation by short circuiting protective device of pressure Switch and temperature controller or the use of non specified component can cause fire or burst I Safety precautions 14 SRK T 165 N CAUTION Carry out the electrical work for ground lead with care Do not connect the ground lead to the gas line water line lightning conductor or telephone line s ground lead Incorrect grounding can cause unit faults such as electric shocks due to short circuiting Usethe circuit breaker of correct capacity Circuit breaker should be the one that disconnect all poles under over current Using the incorrect one could cause the system failure and fire Install isolator or disconnect switch on the power supply wiring in accordance with the local codes and regulations The isolator should be locked in OFF state in accordance with EN60204 1 Be sure to install indoor unit properly according to the instruction manual in order to run off the drainage smoothly Improper installation of indoor unit can cause dropping water into the room and damaging personal property Install the drainage pipe to run off drainage securely according to the installation manual Incorrect installation of the drainage pipe ca
57. ng temp gt 5 Indoor temp Setting temp 2 5 HIGH POWER AUTO HI MED LO 1 Air flow direction is controlled according to the indoor temperature and setting temperature 1 When 3D auto operation starts Cooling Flap Up down Swing Louver Wide Fixed 2 When Indoor temp Setting temp is 5 during cooling the system switches to the following air flow direction control After the louver swings left and right symmetrically for 3 cycles control is switched to the control in 3 Cooling Flap Horizontal blowing Fixed Louver Left right Swing 3 After the flap swings for 5 cycles control is switched to the control in 4 Cooling Flap Up down Swing Louver Center Fixed 4 For 5 minutes the following air flow direction control is carried out Cooling Flap Horizontal blowing Fixed Louver Wide Fixed 5 After 5 minutes have passed the air flow direction 15 determined according to the indoor temperature and setting temperature Operation mode Air flow direction contorol Cooling Indoor temp Setting temp 2 C 2 C lt Indoor temp Setting temp amp 5 Indoor temp Setting temp gt 5 C The control in 4 continues Control returns to the control in 2 Control returns to the control in 1 b During DRY Operation including auto DRY operation Flap H
58. not run at all If the air conditioner does not run at all diagnose the trouble using the following troubleshooting procedure If the air conditioner is running but breaks down proceed to troubleshooting step 4 Important When all the following conditions are met we say that the air conditioner will not run at all a The RUN light does not light up b The flaps do not open c The indoor unit fan motors do not run d The self diagnosis display does not function Troubleshooting procedure If the air conditioner does not run at all If the voltage is correct it will be within following voltage range 198 242 V Is correct voltage NO Make sure the correct volt connected for the power age is connected then per supply form an operation check YES With the power off do the flaps open manually then close again when Is the current fuse on the in YES door unit PCB blown the power is turned on NO YES Proceed to the indoor PCB If the package components check are not damaged replace Is there a reception the dno performan 9p sound emitted from the NO eration check again unit when it is operated by the remote control YES Replace the indoor PCB and Proceed to the wireless remote perform an operation check control troubleshooting proce dure 1145 165 4 Tro
59. nsmission indoor outd b PCB signal for 7 minute 35 seconds or longer during operation the indoor outdoor su compressor is stopped Notes 1 The air conditioner cannot be restarted using the remote control for 3 minutes after operation stops 6 Inspection procedures corresponding to detail of trouble 14 SRK T 165 C Sensor error Broken sensor wire connector poor connection Is connector connection good YES NO Is sensor resistance value good YES Replace PCB Discharge pipe sensor temperature characteristics Broken wire 180 160 140 120 100 80 Resistance 60 40 20 Short circuit 0 Temperature Correct connection Replace sensor Sensor temperature characteristics Room temp indoor heat exchanger temp outdoor heat exchanger temp outdoor air temp Broken wire 30 Resistance Short circuit Temperature C Indoor fan motor error Defective fan motor connector poor connection defective indoor PCB Is connector connection good YES connector then investigate the DC fan motor and indoor PCB separately Is the output of the indoor unit NO PCB normal YES Replace indoor PCB Power supply reset Is normal state restored YES Replace fan motor If anomaly persiste after replacing fan motor replace indoor PCB Malfunction by temporary noise Correct connector connection
60. nt Locations where any machines which generate high frequency harmonics are used Locations with salty atmospheres such as coastlines Locations with heavy snow If installed be sure to provide base flame and snow hood mentioned in the manual Locations where the unit is exposed to chimney smoke Locations at high altitude more than 1000m high Locations with ammonic atmospheres Locations where heat radiation from other heat source can affect the unit Locations without good air circulation Locations with any obstacles which can prevent inlet and outlet air of the unit Locations where short circuit of air can occur in case of multiple units installation Locations where strong air blows against the air outlet of outdoor unit Locations where something located above the unit could fall It can cause remarkable decrease in performance corrosion and damage of components malfunction and fire Do not install the indoor unit in the locations listed below Be sure to install the indoor unit according to the installation manual for each model because each indoor unit has each limitation Locations with any obstacles which can prevent inlet and outlet air of the unit Locations where vibration can be amplified due to insufficient strength of structure Locations where the infrared receiver is exposed to the direct sunlight or the strong light beam in case of the infrared specification unit Location
61. ocation Press the AIR FLOW 4 LEFT RIGHT button and adjust to the i iv desired location M 03 TEMP AIR FLOW ii Each time the AIR FLOW 4 LEFT RIGHT button is pressed U lt indicator 15 switched in the order of Left End Installation Center Installation Right End Installation N 7 7 _ uN Airflow range Airflow range Airflow range Left End Installation Center Installation Right End Installation iv Press the ON OFF button The air conditioner s installation location is set Press within 60 seconds of setting the installation location while the installation location setting display illuminates 14 SRK T 165 9 Outline of cooling operation a Operation of major functional components in Cooling mode Cooling Thermostat ON Thermostat OFF Failure Compressor ON OFF OFF Indoor fan motor ON ON ON OFF OFF Outdoor fan motor ON few minutes ON few minutes ON b Fan speed switching Model All models Fan speed Auto Auto fan control HI Speed 8 MED Speed 6 LO Speed 4 10 Outline of automatic operation a b c d Determination of operation mode The unit checks the indoor air temperature and the outdoor air temperature determines the operation mode and then begins in the automatic operation
62. oduced Use the prescribed pipes flare nuts and tools for R410A Using existing parts for R22 or R407C can cause the unit failure and serious accidents due to burst of the refrigerant circuit Tighten the flare nut by torque wrench with specified method If the flare nut were tightened with excess torque this may cause burst and refrigerant leakage after a long period Do not open the operation valves for liquid line and gas line until completed refrigerant piping work air tightness test and evacuation If the compressor is operated in state of opening operation valves before completed connection of refrigerant piping work air can be sucked into refrigerant circuit which can cause burst or personal injury due to anomalously high pressure in the refrigerant The electrical installation must be carried out by the qualified electrician in accordance with the norm for electrical work and national wiring regulation and the system must be connected to the dedicated circuit Power supply with insufficient capacity and incorrect function done by improper work can cause electric shocks and fire Be sure to shut off the power before starting electrical work Failure to shut off the power can cause electric shocks unit failure or incorrect function of equipment Be sure to use the cables conformed to safety standard and cable ampacity for power distribution work Unconformable cables can cause electric leak anomalous heat production
63. of the pipe and change its Tape only the portion that runs through the wall direction before stretching it and shaping it Always tape the crossover wires with the pipe 4 Cautions when piping from the left and the rear center of the unit Piping is possible in the rear left left rear left downward right or Top View downward direction Left Side Piping Right Side Piping Left rear piping Right rear piping So ss Left side piping Right side piping Downward Left rear Left Left downward 14 SRK T 165 Drain hose changing procedures 1 Remove the drain hose 2 Remove the drain cap 3 Insert the drain cap 4 Connect the drain hose NX 70 Remove screw and e Remove it with hand e Insert the drain cap which was removed at e Insert the drain hose securely drain hose making it or pliers procedure 2 securely using a hexagonal making rotate And install the rotate wrench etc screw Note Be careful that If it is not Inserted Note Be careful that If it is securely water leakage may occur not Inserted securely water leakage may occur Do not place the power supply cords above the gutter Do not make traps in the drain hose line because the air conditioner is structured in a way where condensation on the back side is collected in to the drai
64. orizontal blowing Fixed Louver Wide Fixed 14 SRK T 165 7 Timer operation a Comfortable timer setting ON timer If the timer is set at ON when the operation select switch is set at the cooling or the cooling in auto mode operation is selected the comfortable timer starts and determines the starting time of next operation based on the initial value of 15 minutes and the relationship between the indoor temperature at the setting time temperature of room temperature sensor and the setting temperature b Sleep timer operation Pressing the SLEEP button causes the temperature to be controlled with respect to the set temperature c OFF timer operation The Off timer can be set at a specific time in 10 minute units within a 24 hour period 8 Installation location setting When the indoor unit is installed at the end of a room control the air flow direction so that it is not toward the side walls If you set the remote control installation position keep it so that the air flow is within the range shown in the following figure a Setting i If the air conditioning unit is running press the ON OFF button to stop The installation location setting cannot be made while the unit is running il Press the AIR FLOW UP DOWN button and the w AIR FLOW 4 LEFT RIGHT button together for 5 seconds or more The installation location display illuminates 9 iii Setting the air conditioning installation l
65. r temperature Outdoor air temperature Standards Operation DB WB DB WB Cooling 27 C 19 C 35 C 24 C ISO T1 JIS C 9612 2 This air conditioner is manufactured and tested in conformity with the ISO 3 The operation data are applied to the 230V districts respectively 4 The refrigerant quantity to be charged includes the refrigerant in 7 5m connecting piping Purging is not required even for the short piping If the piping length is 7 5m to 15m additional refrigerant is not required 1145 165 2 EXTERIOR DIMENSIONS 1 Indoor units Model SRK19CNS S 6 lt lt 8006 1167 86 V tA T L 80 U e 5 i 2 nE 8 5 SE 8 12 5 e e p Ae dee 4 a 5 nun S Occ 05 Occ e urrun 2284 soTAI9S 001 021 059 0 lt 2284 MAIS 8 097 d le d 519 dU
66. ration Display RUN Green TIMER Yellow HI POWER Green 3D AUTO Green ompressor overheat protection Se devices Frost protection do Signal error motor error protection Refrigerant piping size O D mm Liquid 6 35 1 4 Gas line 15 88 5 8 Connecting method Flare connecting 0 55 Installation Attached engp piping m as line 0 49 Insulation for piping Necessary Both sides independent Refrigerant line one way length Max 25 Vertical height difference between m Max 15 Outdoor unit is higher outdoor unit and indoor unit Max 15 Outdoor unit is lower Drain hose Connectable VP 16 Power cable 2m 3 Cores wih Earth Recommended breaker size A 20 Size x Core number 1 5mm x 4 cores Including earth cable Connection wiring aa Connecting method Terminal block Screw fixing type Accessories included Mounting kit Option parts Note 1 The data are measured at the following conditions The pipe length is 7 5m Item Indoor air temperature Outdoor air temperature Standards Operation DB WB DB WB Cooling 27 C 19 C 35 C 24 C ISO T1 JIS C 9612 2 This air conditioner is manufactured and tested in conformity with the ISO 3 The operation data are applied to the 230V districts respectively 4 The refrigerant quantity to be charged includes the refrigerant in 7 5m connecting piping Purging is not required ev
67. receiving part is not exposed to the direct rays of the sun or the strong rays of the street lighting A place where it can be easily drained 7 A place separated at least Im away from the television or the radio To prevent interfence to images and sounds A place that home appliance and household goods etc aren t below 1 unit OUTDOOR UNIT A place where good air circulation can be obtained and where rain 10 em 10cm snow or sunshine will not directly strike the unit No 2 place where discharged hot air unit s operating sound will not be D a nuisance to the neighborhood Air 3 A place where servicing space can be secured Aios 4 place where vibration will not be enlarged Avoid installing in the following places A place near the bedroom and the like so that the operation noise Note 1 If the wall is higher than 1 2 m or a ceiling will cause no trouble is present distances larger than indicated in place where there is possibility of flammable gas leakage the above table must be provided place exposed to strong wind salt laden atmosphere or a place where the generation of oil mist vapor or fume is expected 5 Blowing out port and suction port on the back side of the unit can be installed at a distance of 10cm from walls 5 case barrier is 1 2m a
68. s cables Breaker HOSRNR3G2 5 Power supply Keep the openings of the pipes covered with tapes etc to prevent dust sand etc from entering them A CAUTION Do not appl Indoor Outdoor Mr Unit mm refri not turn Liquid side 96 35 9 1 Gabside 0952 132 machine oil to N Press gt N Press 91166 flared surface 915 55 Remove Remove ORemove the flared nuts ORemove the flared nuts Olnstall the removed flared nuts to the pipes to be on both liquid and gas sides on both liquid and gas sides connected then flare the pipes Flaring work G Measurement B mm Measurement Mind pipe Clutch type flare Conventional R22 flare tool Use flare tool designed for R410A or a ametei E i as x tool for R410A Clutch type Wing nut type conventional flare tool Please note that measurement protrusion from flaring block use If a conventional flare tool is used please use a will vary depending type of a flare tool in i copper pipe gauge or a similar instrument to check Copper pipe protrusion so that you can keep measurement B to a correct value Flaring block Connection of refrigerant piping si OConnect pipes on both liquid and gas sides Liquid side Liquid side O rius OTighten nuts to following torque CAUTI N Do not turn N
69. s where an equipment affected by high harmonics is placed TV set or radio receiver is placed within 1m Locations where drainage cannot run off safely It can affect performance or function and etc Do not install the outdoor unit in the locations listed below Locations where discharged hot air or operating sound of the outdoor unit can bother neighborhood Locations where outlet air of the outdoor unit blows directly to plants The outlet air can affect adversely to the plant etc Locations where vibration can be amplified and transmitted due to insufficient strength of structure Locations where vibration and operation sound generated by the outdoor unit can affect seriously on the wall or at the place near bed room Locations where an equipment affected by high harmonics is placed TV set or radio receiver is placed within 1m Locations where drainage cannot run off safely It can affect surrounding environment and cause a claim Do not install the unit where corrosive gas such as sulfurous acid gas etc or combustible gas such as thinner and petroleum gases can accumulate or collect or where volatile combustible substances are handled Corrosive gas can cause corrosion of heat exchanger breakage of plastic parts and etc And combustible gas can cause fire Do not install the unit near the location where leakage of combustible gases can occur If leaked gases accumulate around the unit it
70. serial signal can be received again from the indoor control RUN light ON TIMER light 6 time flash Sensor disconnection room temperature indoor heat exchanger outdoor heat exchanger outdoor tempera ture discharge pipe i Room temperature sensor If the temperature detected by the room temperature sensor is 45 C or lower continuously for 15 seconds or longer while operation is stopped an error indication is displayed RUN light 2 time flash TIMER light ON ii Indoor heat exchanger temperature sensor If the temperature detected by the indoor heat exchanger temperature sensor is 28 C or lower continuously for 15 seconds or longer while operation is stopped an error indication is displayed RUN light 1 time flash TIMER light ON iii Outdoor heat exchanger temperature sensor 55 or lower is detected for 5 seconds continuously 3 time within 40 minutes after initial detection of this anomalous temperature Or 55 C or lower is detected for within 20 seconds after power ON RUN light keep flashing TIMER light 2 time flash iv Outdoor air temperature sensor 55 or lower is detected for 5 seconds continuously 3 time within 40 minutes after initial detection of this anomalous temperature Or 55 or lower is detected for within 20 seconds after power ON RUN light keep flashing TIME Rlight 1 time flash v Discharge pipe temperature sensor 25 or lower is detected for 5 se
71. t prevention control Outdoor fan Depending on the stop mode iii Reset condition Indoor heat exchanger temperature Th2 is higher than 15 C Dew condensation prevention control Cooling including auto cooling oriented dehumidifying operation i Operating condition When the following conditions are met after 5 minutes or more of continuous operation after operation starts Prevention control The humidity sensor value is 68 or higher ii Operation contents Reset 1 Command of the electronic expansion valve 1 i 63 68 Humidity 2 When such a command is continued for 30 minutes or more air direction controls will be as listed below Flap swing Executes the command to the left UP DOWN air flow Situations besides the ones described above Controls the level of the UP DOWN flap Louver swing Executes the command to the left LEFT RIGHT air flow Situations besides the ones described above Controls the front of the LEFT RIGHT louver iii Reset condition When the following condition is satisfied The humidity sensor value is less than 63 Indoor fan motor protection When the airconditioner is operating and the indoor fan motor is turned ON if the indoor fan motor has operated at 300 min rpm or under for more than 30 seconds the unit enters first the stop mode and then stops the entire system TIMER light illuminates simultaneously and the RUN light flashing 6 time at each
72. tected while 1 time ON Heat exchanger 1 wire poor connector operation is stopped If a temperature of 28 C or lower is detected for flash sensor error connection 15 seconds it is judged that the wire is disconnected Indoor PCB is faulty Not displayed during operation Broken room temperature When a room temperature sensor wire disconnection is detected while 2 time ON t tu sensor wire poor connector operation is stopped If a temperature of 45 C or lower is detected for flash connection 15 seconds it is judged that the wire is disconnected Indoor PCB is faulty Not displayed during operation ti When conditions for turning the indoor 5 fan motor on exist during air 6 time ON fan fan conditioner operation an indoor unit fan motor speed of 300 min rpm or flash Oe ss on lower is measured for 30 seconds longer The air conditioner stops Outdoor air Broken outdoor air temp 55 or lower is detected for 5 seconds continuously 3 times within Keeps 1 time sensor wire poor connector 40 minutes after initial detection of this anomalous temperature H temperature i B p lt flashing flash sensor error connection Or 55 or lower is detected for within 20 seconds after power ON Outdoor main PCB is faulty The compressor is stopped Outdoor Broken heat exchanger sensor 55 C or lower is d
73. there voltage between terminal NO Inspect power source blocks 1 and 2 220V for outdoor unit YES Y If the package components YES are not damaged replace the lt Is the fuse burnt out 3 15 n A sd 22 check again Is voltage between terminal blocks 2 and 3 oscillating between DC 0 and 20V Replace indoor PCB YES Y Indoor electrical components are normal b Indoor unit fan motor check procedure This is a diagnostic procedure for determining if the indoor unit s fan motor or the indoor PCB is broken down i Indoor PCB output check 1 Turn off the power 2 Remove the front panel then disconnect the fan motor lead wire connector 3 Turn on the power If the unit operates when the ON OFF button is pressed if trouble is detected after the voltages in the following figure are output for approximately 30 seconds it means that the indoor PCB is normal and the fan motor is broken down If the voltages in the following figure are not output at connector pins No 1 4 and 5 the indoor PCB has failed and the fan motor is normal DC several V 4 6 V GND 9 DC 308 336 DC15V zx xl Measuring Resistance when point normal 0 DC 308 336V Indoor PCB 926 7 DC several 4 6V 2 c 0 0 e g 2
74. trainer 5 RANGE OF USAGE amp LIMITATIONS Item Models 144 SRK T 165 models Indoor return air temperature Upper lower limits Outdoor air temperature Upper lower limits Refer to the selection chart Max 25m Refrigerant line one way length Vertical height difference between outdoor unit and indoor unit Max 15m Outdoor unit is higher Max 15m Outdoor unit is lower Power source voltage Rating 1000 Voltage at starting Min 85 of rating Frequency of ON OFF cycle Max 10 times h ON and OFF interval Selection chart Min 3 minutes Correct the cooling capacity in accordance with the conditions as follows The net cooling capacity can be obtained in the following way Net capacity Capacity shown on specification x Correction factors as follows 1 Coefficient of cooling capacity in relation to temperatures 0 9 Cooling yer Coefficient of cooling capacity in relation to temperature 0 8 0 7 0 6 43 0 plicable range 40 35 30 25 temperature Outdoor air D B 20 Cooling operation 15 Indoor air W B temperature C W B ISO T 24 20 22 Standard Condition 1145 165 2 Correction of cooling capacity relation to one way length of refrigerant piping
75. ubleshooting procedure If the air conditioner runs Confirm the contents of the customer complaint NO The cause of the trouble can be specifically identified Check the self diagnosis display See page 39 Eliminate the cause of the trouble and perform an operation check Y Identify the faulty component by using the check procedure corresponding to the content of the trouble Y Replace the faulty component then perform an operation check Note 1 Even in cases where only intermittent stop data are generated the air conditioning system is normal However if the same protective operation recurs re peatedly 3 or more times it will lead to customer complaints Judge the conditions in comparison with the contents of the complaints 38 1145 165 5 Self diagnosis table When this air conditioner performs an emergency stop the reason why the emergency stop occurred is displayed by the flashing of display lights If the air conditioner is operated using the remote control 3 minutes or more after the emergency stop the trouble display stops and the air conditioner resumes operation Indoor unit display panel n Description i i uw ause Display flashing condition RUN TIMER of trouble play g 19 19 Broken heat exchanger sensor When a heat exchanger sensor 1 wire disconnection is de
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residential air-conditioning technical manual & parts list

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residential air-conditioning technical manual &amp; parts list

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residential air-conditioning technical manual & parts list