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(10) Inverter failure diagnosis

If the results of the diagnosis in Item (7) indicate that the inverter is defective, perform the following inspection on the inverter.

(a)

Diagnosis procedure

Is the fuse good?

Is the varistor good?

Fuse is defective

Replace

Varistor is defective

Replace

YES

Is the noise filter good?

Noise filter is defective

Replace

YES

Is DC280V imposed between the
power transistor P and N?

Is there output at CNG, CNH on
the printed circuit bord (CPU)?

Is the voltage at U, V and W of
the power transistor?

Is the diode stack good?

Is condenser good?

Is there conducitvity in the inductor?

The printed circuit board
(CPU) is defective

Replace

The printed circuit board
(POWER) is defective

Replace

The power transistor is
defective

Replace

YES

Condenser is defective

Replace

Inductor is defective

Replace

The diode stack is defective

Replace

YES

Inspect compressor

Содержание SRK63ZEA-S1

Страница 1: ...INVERTER WALL MOUNTED TYPE ROOM AIR CONDITIONER Split system air to air heat pump type SRK63ZEA S1 71ZEA S1 ROOM AIR CONDITIONING TECHNICAL MANUAL PARTS LIST...

Страница 2: ...TECHNICAL MANUAL...

Страница 3: ...umidifying operation 18 4 11 Outline of automatic operation 19 4 12 Outline of fan operation 20 4 13 Outline of clean operation 20 4 14 Outline of allergen clear operation 20 4 15 ECONOMY operation 22...

Страница 4: ...er to control the air capacity and the inverter frequency 3 Remote control flap louver The Flap louver can be automatically controlled by operating wireless remote control Flap swing The flaps swing u...

Страница 5: ...ol Operation switch Wireless Remote control Room temperature control Microcomputer thermostat Pilot lamp RUN Green TIMER Yellow HI POWER Green ECONO Orange Safety equipment O D mm in Liquid line 6 35...

Страница 6: ...puter thermostat Pilot lamp RUN Green TIMER Yellow HI POWER Green ECONO Orange Safety equipment O D mm in Liquid line 6 35 1 4 Gas line 15 88 5 8 Connecting method Flare connecting Attached length of...

Страница 7: ...pproximately 15 to 21 C Rating 10 Min 85 of rating Max 7 times h Inching prevention 5minutes Max 3 minutes 0 0 VIEW A A 17 3 60 150 4 43 5 55 64 48 9 Piping hole right left 3 248 55 4 19 51 2 55 Termi...

Страница 8: ...532 223 60 15 340 61 47 5 19 380 19 418 Outdoor unit Indoor unit Heat exchanger Room temp sensor Humidity sensor Heat exchanger Flare connecting Heat exchanger sensor Piping Liquid 6 35 Piping Gas 15...

Страница 9: ...obtain the cooling and heating capacity Example The net cooling capacity of the model SRK63ZEA S1 with the piping length of 15m indoor wet bulb temperature at 19 0 C and outdoor dry bulb temperature 3...

Страница 10: ...N_1 OR OR board Printed circuit CNE CNF CNU CNM CNX CNY CNT JEM A Option CNB XR1 XR2 XR3 XR4 XR5 CNG FM I SM LM1 LM2 Th3 Th2 Th1 Color symbol Meaning of marks Symbol Parts name Symbol Parts name Symbo...

Страница 11: ...IMER operation AIR FLOW LEFT RIGHT button This button changes the air flow left right mode CANCEL button This button cancels the ON timer OFF timer and SLEEP operation OFF TIMER button This button sel...

Страница 12: ...make silent mode operation settings RESET switch Press this switch while making settings to go back to the previous operation This switch is also used to reset the FILTER CLEANING message display Pre...

Страница 13: ...ically resumes operations at that point after the power has been restored 2 The following settings will be cancelled a Timer settings b High power operations Notes 1 The power blackout auto restart fu...

Страница 14: ...ireless remote control 1 a Swing flap Flap moves in upward and downward directions continuously b Swing louver Louver moves in left and right directions continuously c When not operating The flap retu...

Страница 15: ...ing temp Room temp 2 At heating 5 No change 5 Notes 1 At 5 minutes before the timer ON time operation starts regardless of the temperature of the room temperature sensor Th1 2 This function does not o...

Страница 16: ...utdoor fan motor ON 4 way valve Depending on the stop mode ON Depending on the stop mode Electronic expansion valve Depending on the EEV control When the inverter speed is 0rps When the inverter speed...

Страница 17: ...Less than 45 minutes Accumulated compressor operation time 2After end of defrosting operation Less than 45 minutes Accumulated compressor operation time 3Outdoor unit heat exchanger sensor Th4 tempera...

Страница 18: ...RUN light Inverter command OFF ON ON Corresponding to speed OFF OFF Corresponding to speed Defrost operation preparation Normal heating operation restored Flashing Hot keep Fuzzy calculated value 0 70...

Страница 19: ...hanges within the range of selected air flow b When any protective function actuates the operation is performed in the mode corresponding to the function c Outdoor blower is operated in accordance wit...

Страница 20: ...checked at 5 minute intervals after selecting the cooling or heating oriented dehumidifying in order to determine the operation range Low 1 0 2 High Room temperature Setting temperature deg High humi...

Страница 21: ...1 Determination of operation mode The unit checks the room temperature and the outdoor air temperature after operating the indoor and outdoor blowers for 20 seconds determines the operation mode and t...

Страница 22: ...llowing diagram 2 Operation flow Inverter command speed Indoor fan motor Outdoor fan motor Flap and louver 2nd speed 8th speed 0rps OFF Depend on the flap and louver control 6th speed 4th speed 2nd sp...

Страница 23: ...nverter command speed 20 rps Indoor fan motor 2nd speed Outdor fan motor 3rd speed Flap and louver Horizontal Center 4 way valve OFF Note 1 During cooling operation safety control frost prevention con...

Страница 24: ...r ON output Power to engage DC 12V relay provided by the customer is outputted while the compressor is operating d Error output When any error occurs the power to engage DC 12V relay provided by the c...

Страница 25: ...mote control signal line b The air conditioner operation is stopped when the CnT input is changed from ON to OFF 4 When the operation permission prohibition mode is set to effective by the indoor func...

Страница 26: ...30 minutes carry out air flow control a Up down air flow When selecting other than Up down swing or multi directional air flow compel flat orientation b Left right air flow When selecting other than L...

Страница 27: ...he speed is kept to 30 rps However when the thermo becomes OFF the speed is reduced to 0 rps c Reset conditions When either of the following condition is satisfied 1 When the outdoor air temperature b...

Страница 28: ...unit heat exchanger temperature 56 C The inverter command speed is been maintained and the operation has continued for more than 20 seconds at the same speed it returns to the normal heating operation...

Страница 29: ...ion start a When the indoor unit calculated speed is 30rps or over at operation start the unit is operated with 30rps for 1 minute and 45 seconds After that when the calculated speed is 38rps or over...

Страница 30: ...0 rps forced operation the unit follows it 14 Current cut a Purpose Inverter is protected from overcurrent b Detail of operation Output current from the converter is monitored with a shunt resistor an...

Страница 31: ...hen the inverter command speed is maintained for 3 minutes when the temperature is 90 C or greater but less than 100 C the speed is raised by 1 rps and kept at that speed for 3 minutes This process is...

Страница 32: ...ve function is actuated b Detail of operation Functional components Operation Inverter command speed Decision rps EEV control Fully closed 0 rps OFF According to outdoor rps According to indoor rps OF...

Страница 33: ...lectric shocks and fires Accurately connect wiring using the proper cable and insure that the external force of the cable is not conducted to the terminal connection part through properly securing it...

Страница 34: ...ion noise will cause no trouble A place where there is possibility of flammable gas leakage A place exposed to strong wind f Do not install the unit near the seaside or where there is possibility of c...

Страница 35: ...length Adjust so that board will be level by turning the board with the standard hole as the center Standard hole c Install the sleeve Inserting sleeve Sleeve Inclined Sealing plate Note 1 Drill a ho...

Страница 36: ...s H05RNR4G1 5 Example H Harmonized cable type 05 300 500 volts R Natural and or synth rubber wire insulation N Polychloroprene rubber conductors insulation R Standed core 4 Number of conductors G One...

Страница 37: ...n it is exposed indoor Drain hose c Fixing of indoor unit How to remove the indoor unit from the installation board 1 Push up at the marked portion of the indoor unit base lower latch and slightly pul...

Страница 38: ...e Outdoor unit side Remove the flared nuts on both liquid and gas sides Remove the flared nuts on both liquid and gas sides Install the removed flared nuts to the pipes to be connected then flare the...

Страница 39: ...ional refrigerant charge by weight after refrigerant piping completion Additional charge amount per meter 25g m Example How much amount of additional charge for 25m piping 25 15 m 25g m 250g 250g for...

Страница 40: ...r on the correct usage of the air conditioner in simple layman s terms 5 Make sure that drain flows properly 6 Standard operation data Model Item SRK63ZEA S1 SRK71ZEA S1 Cooling Heating 2 5 2 7 2 6 2...

Страница 41: ...tion 3 The coverage may be less or even nil If the sensing element is exposed to strong light such as direct sunlight illumination etc or dust is deposited on it or it is used behind a curtain etc or...

Страница 42: ...printed circuit board a Remove the air inlet panel Refer to the installa tion directions b Remove the front panel Refer to the installa tion directions c Remove the control box Remove the screw and th...

Страница 43: ...Replace the top casing as before f Use a cord clamp to attach the remote con trol cord to the wall g Set the functions according to the types of in door unit See Section Function Setting Thin walled p...

Страница 44: ...are as follows If you want to charge a setting follow the procedure found in the installation manual and set to your desired setting For the method of setting please refer to the installation manual...

Страница 45: ...Function number A Function description B from the list of remote control unit functions will be displayed one by one Select a desired function 3 Press the SET button The screen display will be switch...

Страница 46: ...hen followed by SET COMPLETE and the function setting process is completed Then the screen display will be switched to Function number A Function description B so if you want to continue to set anothe...

Страница 47: ...ress the button once The display will change to TEMP RANGE c Press the SET button to enter the temperature range setting mode d Using the or button select Hi LIMIT SET or Lo LIMIT SET the press the SE...

Страница 48: ...on to super link total length of wires 1000 m maximum 0 75 2 0 mm2 2 core Connection to the terminal block for remote control polar total length of wires 600 m maximum No Name ot the recommended signa...

Страница 49: ...erant service valve open 3 Troubleshooting procedure If the air conditioner does not run at all If the air conditioner does not run at all diagnose the trouble using the following troubleshooting proc...

Страница 50: ...le and perform an operation check The air conditioning system is operating normally Replace the faulty component then perform an operation check Identify the faulty component by using the check proced...

Страница 51: ...inutes The air conditioner stops Broken discharge pipe sensor wire poor connector connection Discharge pipe sensor error 4 time flash Keeps flashing The inverter output current compressor motor curren...

Страница 52: ...a stop occurred when the air conditioning system performed protective stops etc in the past Even if stop data alone are generated the system restarts automatically After executing the stop mode while...

Страница 53: ...remote control information at the time the error code was displayed in the past Displays the outdoor air temperature sensor temperature at the time the error code was displayed in the past Displays t...

Страница 54: ...the DC voltage DC 280 V exceeds 350 V When it is judged that the power transistor was damaged at the time the compressor started When it is judged that the power transistor was damaged at the time the...

Страница 55: ...ensor is abnormal anomalous stop Indoor heat exchanger sensor is abnormal anomalous stop Outdoor heat exchanger sensor is abnormal anomalous stop Anti condensation control Anti frost control High pres...

Страница 56: ...ber of times in If no is displayed the error display shows that the trouble has occurred once Notes 3 Automatic Recovery Does not occur Automatic recovery occurs d Remote control information tables 1...

Страница 57: ...46 56 66 76 86 96 57 47 37 27 17 7 7 17 27 37 47 57 67 77 87 97 58 48 38 28 18 8 8 18 28 38 48 58 68 78 88 98 59 49 39 29 19 9 9 19 29 39 49 59 69 79 89 99 No does not sound If no data are recorded er...

Страница 58: ...94 114 134 56 36 16 16 36 56 76 96 116 136 58 38 18 18 38 58 78 98 118 138 No does not sound If no data are recorded error code is normal the display for each sensor becomes as shown below Sensor name...

Страница 59: ...57 Service data record form 0 1 2 3 4 5 6 7...

Страница 60: ...put of the indoor unit s printed circuit board normal Normal NO YES YES Correct connector connection Is DC fan motor resistance value good Replace indoor PCB Replace indoor fan motor Notes 1 See pages...

Страница 61: ...insufficient gas refrigerant Does compressor operation Is capacitor for compressor normal Replace compressor Replace heat exchanger sensor Insufficient gas Is refrigerant amount normal Is heat exchang...

Страница 62: ...ansmission Wiring error including power cable defective indoor outdoor unit PCB Does error persist after power reset Are the lines connecting the indoor and outdoor units connected normally Is DC 0 Ap...

Страница 63: ...d wire Humidity reading is 0 Operates in the Dry region 12 Disconnected wire Humidity reading is 0 Operates in the Dry region 1 and 2 are short Humidity reading is 100 Operates in the Cooling region c...

Страница 64: ...NO NO b Indoor unit fan motor check procedure This is a diagnostic procedure for determining if the indoor unit s fan motor or the circuit board is broken down 1 Indoor unit printed circuit board outp...

Страница 65: ...O Is DC280V imposed between the power transistor P and N Is there output at CNG CNH on the printed circuit bord CPU Is the voltage at U V and W of the power transistor Is the diode stack good Is conde...

Страница 66: ...ctivity CAUTION HIGH VOLTAGE b Outdoor unit inspection points High voltage is produced in the control box Don t touch electrical parts in the control box for 5 minutes after the unit is stopped SSRC63...

Страница 67: ...figure on the right can be measured the power transistor and the circuit board for the outdoor unit are normal For about 50 seconds After being switched on there will be a delay of approximately one m...

Страница 68: ...en immediately retighten it after observing that gas is blow out from the loosened portion e Open the valve 1 and 3 after discharging air from the charge hose A then the liquid refrigerant begins flow...

Страница 69: ...s Pseudo azeotropic characteristics R410A is a pseudo azeotropic mixed refrigerant composed of two constituents R32 and R125 Quasi azeotropic condition refers to a state in which the dew point curve a...

Страница 70: ...isonous gas may occur 5 When an air conditioning system charged with a large volume of refrigerant e g multi type air conditioner is installed in a small room it is necessary to exercise care so that...

Страница 71: ...ce outer diameter Minimum joint thickness diameter of copper pipe jointed mm mm 1 4 6 35 0 50 3 8 9 52 0 60 1 2 12 70 0 70 5 8 15 88 0 80 7 2 2 Processing of piping materials When performing the refri...

Страница 72: ...1 4 6 35 0 8 0 0 5 1 0 1 5 1 5 2 0 3 8 9 52 0 8 0 0 5 1 0 1 5 1 5 2 0 1 2 12 70 0 8 0 0 5 1 0 1 5 2 0 2 5 5 8 15 88 1 0 0 0 5 1 0 1 5 2 0 2 5 Table 6 Dimensions related to flare processing for R22 No...

Страница 73: ...and which contains less contaminants It is necessary to carefully treat store copper pipes so that they are not collapsed deformed or damaged Due care must also be exercised so that foreign matters su...

Страница 74: ...ing the connected parts As brazing is molten between the joined surfaces to yield high adhesive strength it is necessary to secure a wide enough space to be joined and also an adequate clearance betwe...

Страница 75: ...ssium fluoride potas sium chloride and sodium fluoride to the borax boric acid compound Cautions 1 Remove the flux after brazing 2 When chlorine contained in the flux stays within the pipe the lubrica...

Страница 76: ...part from overheating damage or quality deterioration due to flame or heat take adequate steps for protection such as 1 by shielding with a metal plate 2 by using a wet cloth and 3 by means of heat ab...

Страница 77: ...o types of electronic balance for refrigerant charging are available one for 10kg cylinder and the other for 20kg cylinder Electronic balance for 10kg cylinder precision 2g Electronic balance for 20kg...

Страница 78: ...cking for refrigerant cylinder According to the charge hose s cap size a charge port with 1 2 UNF 20 threads per inch and corresponding packing are required j Gas leakage detector A high sensitivity g...

Страница 79: ...e to make setting so that liquid can be charged When using a cylinder equipped with a siphon liquid can be charged without turning it upside down b Connect the gauge manifold s charge hose to the elec...

Страница 80: ...e indoor outdoor units Caution When storing the indoor unit piping in its original position be careful not to break the piping 2 Installing the unit a Proceed with the installation following the steps...

Страница 81: ...reventing function float switch moisture indicator drier and other accessory functions should be adjusted or replaced where necessary 4 Electrical circuit b Checking the accessories to the refrigerant...

Страница 82: ...cessories tools are required Shown below are standard accessories 1 Recovering cylinder Use a recovering cylinder designated by the equipment manufacturer A detachable cylinder must be such that it co...

Страница 83: ...iercing valve a A tool used to make a hole for recovery in the copper pipe when recovering R410A from equipment which has no port for charging or recovering gas Various types are available on the mark...

Страница 84: ...PARTS LIST SRK63ZEA S1 SRK71ZEA S1 SRC63ZEA S1 SRC71ZEA S1...

Страница 85: ...CRAE0167 43 40 41 42 16 19 17 22 30 21 26 31 32 8 9 14 15 25 29 27 24 3 35 1 4 44 6 44 6 44 6 4 7 2 5 34 38 37 39 10 11 12 36 13 28 23 20 18 33 PANEL FAN ASSY 83...

Страница 86: ...6 23 RKW144A200 LINK ASSY 1 1 1 1 2 16 RKW129A208 JOINT L 1 1 1 1 2 17 RKW129A210 BRACKET MOTOR A 1 6 6 1 1 1 1 8 1 1 1 2 18 RKW144A201 LINK 1 1 1 1 2 19 RKW144A202 CRANK A 1 1 1 2 20 RKW144A203 CRANK...

Страница 87: ...BRACKET MOTOR L 1 1 1 1 2 39 RKS504A601C HARNESS ASSY 1 1 1 1 3 1 1 1 2 FOR FAN MOTOR 40 RKW032A200 PLATE INSTALLATION 1 1 1 2 41 RKW129A212 COVER PIPE 1 1 1 1 2 42 RKW132A200 LID R 1 1 2 4 43 RKW132A...

Страница 88: ...MEMO 86...

Страница 89: ...CRAE0168 21 1 9 3 8 7 6 5 4 2 23 11 10 13 17 12 15 14 16 18 19 20 22 24 25 26 27 29 28 HEAT EXCH CONTROL 87...

Страница 90: ...Room temp Heat exch Sensor 14 SSA551B017 SENSOR HUMIDITY 1 1 1 2 4 15 SSA561B702B BLOCK TERMINAL 1 1 2 2 16 SSA561B675C BLOCK TERMINAL 1 1 2 2 17 RKW011G200 LABEL WIRING 1 18 20 RKW505A210 PWB ASSY 1...

Страница 91: ...CRAE0167 43 40 41 42 16 19 17 22 30 21 26 31 32 8 9 14 15 25 29 27 24 3 35 1 4 44 6 44 6 44 6 4 7 2 5 34 38 37 39 10 11 12 36 13 28 23 20 18 33 PANEL FAN ASSY 89...

Страница 92: ...6 23 RKW144A200 LINK ASSY 1 1 1 1 2 16 RKW129A208 JOINT L 1 1 1 1 2 17 RKW129A210 BRACKET MOTOR A 1 6 6 1 1 1 1 8 1 1 1 2 18 RKW144A201 LINK 1 1 1 1 2 19 RKW144A202 CRANK A 1 1 1 2 20 RKW144A203 CRANK...

Страница 93: ...BRACKET MOTOR L 1 1 1 1 2 39 RKS504A601C HARNESS ASSY 1 1 1 1 1 2 FOR FAN MOTOR 40 RKW032A200 PLATE INSTALLATION 1 1 1 2 41 RKW129A212 COVER PIPE 1 1 1 3 1 1 1 2 42 RKW132A200 LID R 1 1 2 4 43 RKW132A...

Страница 94: ...MEMO 92...

Страница 95: ...CRAE0168 21 1 9 3 8 7 6 5 4 2 23 11 10 13 17 12 15 14 16 18 19 20 22 24 25 26 27 29 28 HEAT EXCH CONTROL 93...

Страница 96: ...Room temp Heat exch Sensor 14 SSA551B017 SENSOR HUMIDITY 1 1 1 2 4 15 SSA561B702B BLOCK TERMINAL 1 1 2 2 16 SSA561B675C BLOCK TERMINAL 1 1 2 2 17 RKW011G200 LABEL WIRING 1 18 20 RKW505A210A PWB ASSY...

Страница 97: ...05 0 CRBE0207 2 12 6 1 7 14 3 24 16 19 4 9 10 5 11 11 13 15 8 18 17 20 23 21 22 PANEL FAN ASSY 95...

Страница 98: ...04 COVER ASSY SERVICE 1 1 1 2 4 9 RCR131A001 GUARD FIN A 1 1 1 1 2 10 RCR131A002 GUARD FIN B 1 1 1 1 2 11 SSA944B031A HANDLE 12 RCR132A002 COVER TERMINAL 1 2 1 1 2 4 13 RCR941G001 CUSHION 1 14 SSA913A...

Страница 99: ...R TEMP SENSOR TH2 HEAT EXCH SENSOR TH1 35 36 7 8 LIQ GAS CONTROL ASSY 34 27 33 24 28 25 26 30 31 32 2 5 16 13 12 9 17 10 11 6 4 3 29 1 37 38 39 15 18 21 22 23 20 14 19 DISCHARGE PIPE SENSOR TH3 HEAT E...

Страница 100: ...SSA382F210L COIL SOLENOID 1 1 1 2 18 PCA201A048A COMPRESSOR ASSY 1 1 2 3 8 19 PCA941C011 CUSHION RUBBER 20 RSA914C001 NUT FLANGE 21 PCA932C005 GASKET COVER 22 PCA947K005 COVER TERMINAL 1 1 2 4 23 PCA...

Страница 101: ...05 0 CRBE0207 2 12 6 1 7 14 3 24 16 19 4 9 10 5 11 11 13 15 8 18 17 20 23 21 22 PANEL FAN ASSY 99...

Страница 102: ...2A004 COVER ASSY SERVICE 1 1 1 2 4 9 RCR131A001 GUARD FIN A 1 1 1 1 2 10 RCR131A002 GUARD FIN B 1 1 1 1 2 11 SSA944B031A HANDLE 12 RCR132A002 COVER TERMINAL 1 2 13 RCR941G001 CUSHION 1 14 SSA913A034B...

Страница 103: ...R TEMP SENSOR TH2 HEAT EXCH SENSOR TH1 35 36 7 8 LIQ GAS CONTROL ASSY 34 27 33 24 28 25 26 30 31 32 2 5 16 13 12 9 17 10 11 6 4 3 29 1 37 38 39 15 18 21 22 23 20 14 19 DISCHARGE PIPE SENSOR TH3 HEAT E...

Страница 104: ...SSA382F210L COIL SOLENOID 1 1 1 2 18 PCA201A048A COMPRESSOR ASSY 1 1 1 2 3 8 19 PCA941C011 CUSHION RUBBER 20 RSA914C001 NUT FLANGE 21 PCA932C005 GASKET COVER 22 PCA947K005 COVER TERMINAL 1 1 2 4 23 P...

Страница 105: ...MEMO...

Страница 106: ...Manual No 06 SRK T 053 ROOM AIR CONDITIONING TECHNICAL MANUAL PARTS LIST...

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