Mitsubishi Heavy Industries SRC20MA-S, Technical Manual

Page 1: ...l Manual Manual Number 2011 No W2 01 Variable Frequency Wall Mounted Type Room Air Conditioners Split system heat pump type SRK20MA S SRC20MA S SRK25MA S SRC25MA S SRK35MA S SRC35MA S SRK50MA S SRC50MA S R410A Refrigerant Used MITSUBISHI HEAVY INDUSTRIES LTD ...

Page 2: ...E OF EACH PART AND ITS FUNCTION 12 4 1 Name of each part 15 4 2 Emergency switch 15 4 3 Automatic restart 15 4 4 Key lock 15 4 5 CLEAN operation 15 4 6 SLEEP operation 16 4 7 Timing off 16 4 8 Timing on 17 4 9 Programmed timer 17 4 10 Current time setting 18 4 11 HI POWER operation 18 4 12 JET operation 18 4 13 POWER SAVE operation 19 4 14 Air direction adjustment 19 4 15 Area setting 20 4 16 Inst...

Page 3: ...an control 24 4 24 Outline of indoor fan control 25 5 INSTALLATION 27 5 1 Selection of installation location 29 5 2 Installation of indoor unit 30 5 3 Installation of outdoor unit 33 5 4 Pipe connection 33 5 5 Precautions for wireless remote controller operation 35 5 6 Standard running data 36 6 MAINTENANCE 37 6 1 Electrical parts failure diagnosis method 37 6 2 Servicing 58 7 SERVICING MANUAL 59 ...

Page 4: ...ollows Indoor indication Error RUN lamp TIMER lamp Temp indication Indoor unit Sensors Indoor heat exchanger sensor error 1 time 8 sec ON 06 Indoor inlet air room temp sensor error 2 times 8 sec Others Indoor fan motor error 6 times 8 sec 16 Display communication error 00 Outdoor unit Sensors Outdoor temp sensor error Continuous flashing 1 time 8 sec 38 Outdoor heat exchanger liquid pipe sensor er...

Page 5: ...1 5mm hush pipe Refrigerant g R 410A 900g addition reduction not needed within the use range of 15m Operating pressure limit Mpa Max 4 15 Min 1 47 Air filters Lysozyme filter Antibacterial deodorizing filter Mould proof air filter Accessories and quantity Indoor unit 1 mounting plate 1 tapping screw 5 battery 2 use and installation manual 1 remote controller 1 filter components 2 outdoor unit 1 Dr...

Page 6: ...rigerant g R 410A 900g addition reduction not needed within the use range of 15m Operating pressure limit Mpa Max 4 15 Min 1 47 Air filters Lysozyme filter Antibacterial deodorizing filter Mould proof air filter Accessories and quantity Indoor unit 1 mounting plate 1 tapping screw 5 battery 2 use and installation manual 1 remote controller 1 filter components 2 outdoor unit 1 water elbow 1 Water s...

Page 7: ...nsion valve Φ1 5mm hush pipe Refrigerant g R 410A 900g addition reduction not needed within the use range of 15m Operating pressure limit Mpa Max 4 15 Min 1 47 Air filters Lysozyme filter Antibacterial deodorizing filter Mould proof air filter Accessories and quantity Indoor unit 1 mounting plate 1 tapping screw 5 battery 2 use and installation manual 1 remote controller 1 filter components 2 outd...

Page 8: ...sion valve Φ1 5mm hush pipe Refrigerant g R 410A 1250g addition reduction not needed within the use range of 15m Operating pressure limit Mpa Max 4 15 Min 1 47 Air filters Lysozyme filter Antibacterial deodorizing filter Mould proof air filter Accessories and quantity Indoor unit 1 mounting plate 1 tapping screw 5 battery 2 use and installation manual 1 remote controller 1 filter components 2 outd...

Page 9: ... 24 Indoor temperature About18 32 About below 30 Indoor humidity About below 80 20 50 Models Max piping one way length Within 15 m Vertical height difference Within 5 m Additional R410A Refrigerant Not required Voltage Rating 10 Starting voltage At least 85 of rating Switching frequency Max 10 times per hour Time interval between stop and start Min 3 min 2 3 Outline drawing 1 Indoor unit MA S Seri...

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Page 11: ...Unit mm 3 Outdoor unit SRC50 MA S Unit mm Drainage pipes Junction box Operation valve Liquid Flare connecting Operation valve Gas Flare connecting Drain holes Terminal block Operation valve Liquid Flare connecting Operation valve Gas Flare connecting ...

Page 12: ...valve Gas Outdoor air temp sensor Air heat exchanger Heat exchanger sensor Gas liquid separator Compressor Discharge pipe sensor 4 way valve Check joint Gas pipeNote 1 model Air heat exchanger Inlet air temp sensor Air heat exchanger sensor Liquid pepe Flare connecting Filter Electronic expansion valve Hush pipe Hush pipe Operation valve Liquid Refrigerant inlet pipe Refrigerant outlet pipe model ...

Page 13: ...ing corrections 1 and 2 the heating capacity also needs to be corrected according to the frosting on the outdoor heat exchanger Air inlet temperature of outdoor unit 10 9 7 5 3 1 1 3 5 Frosting correction factor 0 95 0 94 0 93 0 91 0 88 0 86 0 87 0 92 1 00 Example of cooling and heating capacity calculation The actual cooling capacity of model SRK50MA S with the one way piping length of 25m at the...

Page 14: ...mp correction Piping length capacity factor correction factor Actual heating capacity 5800 x 0 81 x 0 95 x 0 86 3838W Nominal heating Temp correction Piping length Frosting capacity factor correction factor correction factor ...

Page 15: ... 12 3 ELECTRICAL WIRING DIAGRAM 3 1 Circuit diagram 20 25 35MA S ...

Page 16: ... 13 3 2 Circuit diagram 50MA S ...

Page 17: ...t right air direction flap Page 11 Drainage pipe Drains water removed from air Refrigerant pipe joint and electric wire Outdoor unit Accessories Air inlet Vent on the side and back Batteries Wireless remote controller Filter retainer 2 pcs Lysozyme filter and antibacterial deodorizing filter Indication section of A C and signal receiver of remote controller Air inlet panel Draws in the indoor air ...

Page 18: ...set temperature Each time the remote controller is pressed the temperature set with the remote controller flashes for 10 seconds and then the room temperature is displayed Opening the air inlet grille Put yourhands on the indentations on both sides raise the grille towards yourself and stop at the opening position of about 60 Closing the air inlet grille Gently push both sides and then gently push...

Page 19: ...s Left Right air direction button Press this button and the air flap begins to swing to the left and the right AREA button Press this button to set the air regulation area in the room TIMER OFF button This button is used to select the Timing OFF operation ACL switch Used to reset the microcomputer CANCEL KEY LOCK button Press this button to cancel Timing ON OFF and SLEEP operations press and hold ...

Page 20: ...ure air flow air direction etc can t be changed 4 When the function is enabled in the JET HI POWER operating mode the operation and action are valid before the air conditioner stops and become invalid when the air conditioner operates again 5 The key lock function can t be set in the CLEAN operation and various timing operations 4 5 CLEAN operation 1 CLEAN operation In the automatic cooling and dr...

Page 21: ... operating mode cool room drying warm room is set the SLEEP operation begins The change of cool room drying warm room state arising from the automatic control fuzzy automatic is made only when the set temperature is changed In other words the operating mode judgment according to the operation judgment timing is not executed 8 Priority of sleep timing operation Set temperature correction HI POWER o...

Page 22: ...d by when the operation switching mode switching or set temperature change signal is received from the remote controller only the changed content will be accepted 4 9 Programmed timer 1 Timing operations include Timing ON and Timing OFF Once the function is enabled the operation begins As long as the ON OFF button is not pressed the air conditioner will begin operation at the same time everyday ti...

Page 23: ...nal 3 The HI POWER mode is canceled in one of the following cases The HI POWER button is pressed again The operating mode is changed After 15 minutes The FAN SPEED button is pressed The system enters the Timing operation 4 Notes During the HI POWER operation the room temperature is not controlled The HI POWER operation is not supported during the drying and programmed timer operation The Shower an...

Page 24: ... too much cool air from going down During heating the up down air direction is set to to prevent too much warm air from going up 4 Notes When the Heating mode is enabled that is the heating operation begins in order to prevent cool air from blowing the flap will move to the level position in which case the air direction can t be set When warm air begins to blow the air flap will be restored to the...

Page 25: ...will memorize the installation location 3 The installation location and air direction range of the air conditioner are as follows 4 Notes After the installation location is set again even when the plug is unplugged the air conditioner will also memorize the installation location During operation the installation location can t be set After the installation location is set if the air conditioner is...

Page 26: ...3 or Th0 A 19 Slightly cool heating drying Tai TS 3 or Th0 A 19 Slightly warm heating drying 2 Notes After the operating mode is judged the system decides the running range according to the room temperature and setting correction temperature every 5 minutes Slightly cool heating drying includes four running ranges all of which are cooling operations Slightly warm heating drying includes four runni...

Page 27: ...time pattern of various functional parts in defrosting control Defrosting Compressor 4 way valve Outdoor fan Operation of outdoor functional parts 5 sec speed Usual control Usual control Enter EEV openng EEV control EEV openng EEV control End running EEV openng Usual heating Usual heating Defrosting running state Beginning conditions met Enter defrosting running Ending conditions met End defrostin...

Page 28: ...e temperature measured by the indoor heat exchanger sensor is 28 B During the Heating mode the compressor displays OFF C During the Heating mode the defrosting signal is received Control This control ends when the vertical flap Sm1 moves to position and the horizontal flaps Sm2 and Sm3 move to position Ending conditions when one of the following conditions is met A The indoor running mode is switc...

Page 29: ...ial situations such as reference position control etc others are controlled within the pulse range of 41 47 4 22 Outline of compressor control 1 Overview of ON OFF of cooling and heating running When the outdoor running mode is Cooling or Heating the compressor has stopped for over 3 minutes and the compressor running signal from the indoor unit is received the compressor will be turned on When th...

Page 30: ...below 22 it will run at speed or for 30 seconds 9 Outdoor fan control of low outdoor temperature in cooling overload in cooling low outdoor temperature in heating and overload in heating In the cooling or heating mode when the compressor is in the ON state and the temperature measured by the outdoor air temp sensor meets the control conditions this control will begin This control is canceled when ...

Page 31: ...taining during heating and the temperature measured by the indoor heat exchanger sensor Th1 R1 is as follows Speed position of indoor fan Temperature measured by the indoor heat exchanger sensor When the compressor displays ON When the compressor displays OFF ...

Page 32: ...rea well in the event of refrigerant leakage during installation If the refrigerant comes into contact with naked flames poisonous gas is produced When the equipment is to be installed in a small room take preventive measures to avoid refrigerant leakage exceeding the density limit Consult with the installation professionals about the preventive measures If the density is greater than the limit of...

Page 33: ... personal injury due to falling from the installation place 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 Take care when carrying the unit by hand If the unit weighs more than 20kg it must be carried by two or more persons Do not carry by the plastic straps always ...

Page 34: ...stem and cause malfunctions and breakdowns The system can also affect medical equipment and telecommunication equipment and obstruct its function or cause jamming 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...

Page 35: ... plate Air intake 10cm MIN No obstacles Service space for electrical parts 10cm MIN Air intake Air outlet 60cm MIN Caution If the wall is 1 2m or above in height or there is a ceiling the sizes should be greater than those indicated above Latches Front panel Air inlet grille Screw Screw Fixing the mounting plate Firstly find the position of support or columella in the wall Check that the mounting ...

Page 36: ...wire Open the air inlet grille Remove the cover Open the wire clamp Connect the electric wire to the connection board securely 1 Connect the electric wire to the connection board securely If the electric wire is not fixed completely the contacting will be poor thus causes risk as the connection board may heat which causes fire 2 Please note that the number of terminals of the indoor and outdoor co...

Page 37: ...e Securely insert the drainage pipe and make it rotate Note If it is not inserted securely enough water leakage may occur Wind the section extending to outdoor with exterior insulation tape Be sure to wind the wiring and the piping together with exterior insulation tape To apply the exterior insulation tape be sure to begin from the lower part of the piping to avoid intrusion of rain Securing the ...

Page 38: ...table base When installing the unit at higher place or where it could be toppled by strong winds secure the unit firmly with foundation bolts wire etc Perform wiring making wire terminal numbers conform to terminal numbers of indoor unit terminal block Connect using ground screw located near mark Never install the water elbow when the temperature is below 0 for several days in a row Water elbow Gr...

Page 39: ...and gas sides with a hexagon wrench Ensure that there are no gas leaks from the joints in the indoor and outdoor units Compound pressure gauge Operation valve 2 way valve Gauge manifold Designed specifically for R410A Pressure gauge Operation valve 3 way valve Service port Charge hose Designed specifically for R410A Vacuum pump adapter Anti reverse flow type Designed specifically for R410A Handle ...

Page 40: ...is 10 years Some products may be used even after the normal useful life is expired For the destruction or disposal of the product and waste after the useful life has expired the impact on safety and environment must be considered Installation test check points Check the following points after completion of the installation and before turning on the power Conduct a test run and ensure that the unit...

Page 41: ...14 10 16 Heating 9 15 9 16 10 21 10 22 Operating current A Cooling 1 4 4 1 1 4 6 0 1 3 6 6 2 0 10 8 Heating 1 7 5 6 1 7 6 1 1 7 6 6 2 0 13 8 Notes The above data complies with the standard and is measured at the following ambient temperature indoor side cooling 27 DB 19 WB heating 20 DB outdoor side cooling 35 DB 24 WB heating 7 DB 6 WB The length of the pipe between the indoor and outdoor units i...

Page 42: ...e electric wire and be sure to hold the plug frame 2 Matters to be confirmed before diagnosis Have you asked the user about the details of the failure Does the air conditioner run Does the self diagnosis have any indication Is the voltage of the power socket correct Is the connection between the indoor and outdoor units wrong Is the outdoor refrigerant disconnecting valve opened 3 Procedure of dia...

Page 43: ...er supply and open the flap manually Is the flap closed when the cable is inserted into the power supply Yes No Is the current protective tube on the circuit board of the indoor unit broken To Check method for circuit board If the bonded parts are not damaged replace the protective tube and check the operation situation No Does the system issue the sound for receiving signals when the remote contr...

Page 44: ...es Yes Yes No Confirm the displaying of self diagnosis Eliminate the cause of error and check the operation situation Has the self diagnosis been conducted Use the maintenance mode to read the past indication of self diagnosis Is there any history of indication of self diagnosis Use the maintenance mode to read the history of stop due to the past protection control Is there any history of stop due...

Page 45: ...utdoor circuit board defective EEV disconnecting valve closed When the compressor is started the output current of the inverter current of compressor exceeds the setting The air conditioner stops and the error is indicated Light up Flash 2 times 59 Outdoor unit error No connection or wire break of compressor disconnecting valve closed over heat running of compressor wire break of vent pipe sensor ...

Page 46: ...ler operation switching and air flow changes More detailed data can be confirmed Stop data Data of causes of past stops due to protection control etc in the air conditioner If only stop data is indicated the system will be restored automatically The indication will be restored automatically after the appliance enters the stop mode normally Data of last 10 times can be memorized and the older data ...

Page 47: ...ote controller Content of output data Operation switching Air flow switching Cooling Me Indicates the causes of past stops error code indicated in the past Hi Indicates the temperature measured by the room temperature sensor when the error code was indicated Auto Indicates the temperature measured by the indoor heat exchanger sensor when the error code was indicated Heating Lo Indicates the inform...

Page 48: ...board of outdoor unit Damage of mains transformer Failure of power transistor is determined when the compressor starts O Flash 6 times 16 Circuit failure due to power cut Defective circuit board of outdoor unit Damage of mains transformer Failure of power transistor is determined when the compressor starts O Flash 2 times Flash 1 time 21 Failure of outdoor unit Abnormal result of PWM algorithm Wir...

Page 49: ... 46 Flash 7 times 37 Heating safe current III 3A Excessive refrigerant Safe current stops in the safe current III 3A mode during heating operation O Compressor lock ...

Page 50: ...mpressor wiring break Short circuit of compressor wiring Defective outdoor circuit board The cause of final failure is rotor locked after the compressor fails to start after 42 continuous attempts O twice O Flash 4 times 74 Poor phase position switching V phase Defective compressor Compressor wiring break Short circuit of compressor wiring Defective outdoor circuit board The cause of final failure...

Page 51: ...d Remote controller information list 1 Operation switching 2 Air flow switching Indication in service mode Operation switching status at the time of abnormal stop Indication in service mode Air flow switching status at the time of abnormal stop RUN lamp Operation switching TIMER lamp Air flow switching 0 AUTO 0 AUTO 1 DRYING 2 HI 2 COOLING 3 ME 4 HEATING 4 LO 6 HI POWER 7 ECONO If there is no data...

Page 52: ...en the error code is normal Temperature measured by room temperature sensor 19 Temperature measured by indoor heat exchanger sensor 64 Temperature measured by outdoor air temp sensor 64 Temperature measured by outdoor heat exchanger liquid pipe sensor 64 Example Temperature measured by room temperature sensor indoor heat exchanger sensor outdoor air temp sensor and outdoor heat exchanger liquid pi...

Page 53: ... lamp tens place TIMER lamp ones place 1 5 sec 0 5 sec 0 5 sec 11 sec cycle Sound of buzzer Negative 0 1 sec When the temperature is 0 the buzzer will sound When the temperature is 0 the buzzer will not sound ...

Page 54: ...or 64 Example Temperature of compressor vent pipe 122 The temperature data of compressor vent pipe should be two times the reading The following 61 x 2 122 Does the buzzer sound Sound means negative RUN lamp tens place TIMER lamp ones place Yes Sounds for 0 1 sec No Not sound RUN lamp tens place TIMER lamp ones place 1 5 sec 0 5 sec 0 5 sec 11 sec cycle Sound of buzzer Negative 0 1 sec When the te...

Page 55: ...g Lo Info of remote controller of third to last error Me Temp measured by outdoor air temp sensor of third to last error Hi Temp measured by outdoor heat exchanger liquid pipe sensor of third to last error Auto Temp measured by discharge pipe sensor of third to last error 24 Cooling Me Code of fourth to last error Hi Temp measured by room temp sensor of fourth to last error Auto Temp measured by i...

Page 56: ...ture sensor heat exchanger indoor and outdoor sensors and outdoor air temp sensor Error of sensor Wire break of sensor and poor joint contacting Is the joint contacting normal No No Is the resistance value of the sensor normal Yes Yes Replace the PCB Replace the sensor Correct the plug socket replace the joint Open circuit Resistance Short circuit Temp 5 KΩ at 25 Temp Resistance KΩ Temp Resistance...

Page 57: ...s correct check the resistance value replace the discharge pipe sensor Yes Is the refrigerant circulating load normal Is the situation the same after refrigerant is charged Insufficient refrigerant Failure of inverter Blockage of hush pipe etc No No No Yes Yes Yes Disconnect the wiring of the compressor and operate the inverter to check whether the power cut function does not work Failure of inver...

Page 58: ...lure of indoor PCB Check the connection Dose the voltage between outdoor terminal block 2 3 fluctuate between DC 0V and about 12V Is there AC voltage of 220 230 240V between outdoor terminal block 1 2 Failure of indoor PCB Check the connection Is the power supply system protective tube choke etc in good condition Replace the protective tube choke etc Failure of outdoor PCB No No Yes Yes Is the con...

Page 59: ... 0 Operating in drying mode wire break Humidity reading 0 Operating in drying mode wire break Humidity reading 0 Operating in drying mode Short circuit and short circuit Humidity reading 100 Operating in cooling mode Note Do not use an instrument for power on inspection of the humidity sensor Accidents may occur if DC is applied b Outdoor unit Sensor Operation type Actions Short circuit Wire break...

Page 60: ...he fan motor is basically normal 2 Check of resistance value of DC fan motor Measurement point Resistance value in normal cases Notes 1 Remove the fan motor and measure without power 2 The fan motor is abnormal if the measurement is below the normal value red and black Above 25MΩ white and black Above 30MΩ No Is the fuse 3 15A intact No No Yes Yes Yes Replace the fuse Has voltage been applied to b...

Page 61: ...fective PCB of indoor unit Can the air conditioner operate when the back up switch is used Replace the wireless receiving part Defective wireless receiving part Yes Can the air conditioner operate when the remote controller is used No Defective remote controller Replace Note 1 a Press the ACL switch on the remote controller b If the set temperature displayed is 0 and the current time displayed is ...

Page 62: ... 59 12 Check method for outdoor unit 1 Circuit diagram of 20 25 and 35MA S outdoor units ...

Page 63: ... 60 2 Circuit diagram of 50MA S outdoor unit ...

Page 64: ...t number SA01927 1 Detector setting procedure a Switch off the power supply turn off the switch b Remove the output power transistor U V and W of the inverter control circuit board from the connection of the compressor c Connect the wires of the detector U Red V White W Black to the terminal wires of the power transistor 2 Judging the operation method a Insert the plug and press and hold the back ...

Page 65: ...put check of outdoor circuit board 1 Unplug the plug 2 Remove the plug CAN for the outdoor fan motor 3 Insert the plug and press and hold the back up switch for over 5 sec ON till the indoor unit commences operation If 20 sec after the back up switch is turned ON the contact pin No of the plug as shown in the following figure outputs voltage for about 30 sec it indicates the circuit board is basic...

Page 66: ...mount of refrigerant to be charged d Purge the air in the charge hose Loosen the connection between the charge hose and the collecting pipe gauge open the valve for several seconds and tighten the connection immediately after the gas blown from the loose part is observed e After the air is released from the charge hose open the valves and and the refrigerant gas will immediately flow from the cyli...

Page 67: ...y of false azeotropic point R410A is a kind of false azeotropic mixture refrigerant composed of R32 and R125 The false azeotropic condition refers to the dew point curve and the boiling point curve gas liquid balanced curve constant pressure are located at each other s peak respectively Multi component refrigerant with this chemical property will not change in ingredients basically even when its s...

Page 68: ... heating stove etc it may produce poisonous gas 5 If an air conditioner charged with large amount of refrigerant such as a multi functional air conditioner is installed in a small room be sure to take more care and ensure that the concentration will not exceed the limit even in case of refrigerant leakage In case the refrigerant is leaked and its concentration exceeds the limit oxygen starvation m...

Page 69: ...ts are generally used See Figure 2 Table 4 Min thickness of sleeve joints Rating diameter Reference outside diameter of sleeve joints mm Min joint thickness 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 Figure 2 Sleeve joints 7 2 2 Handling of piping materials When mounting refrigerant pipes be careful to prevent water or dust from entering the pipes do not use oil other than the lu...

Page 70: ...nal flare tools Figure 3 Flare tool Table 5 R410A flaring sizes Table 6 R22 flaring sizes Figure 4 Relationship between flare nut and flaring sealing surface Table 7 Sizes of R410A flaring and flare nut Unit mm Rating diameter Outside diameter mm Thickness mm Flare tool for R410A Clutch type Conventional flare tools Clutch type Wing nut type Rating diameter Outside diameter mm Thickness mm Flare t...

Page 71: ...ping materials 1 Types and storage of piping materials The refrigerant piping materials for air conditioners are generally divided into the following types The pressure of R410A is higher than that of R22 by about 1 6 times so be sure to use copper pipes of the thickness as shown in Table 3 see Page 56 and try to keep them clean Be careful in handling storing copper pipes to avoid bending distorti...

Page 72: ...esive strength be sure to leave adequate space for welding and keep adequate gap between the surfaces of joints The minimum depth of penetration of joint of copper pipe the outside diameter of inner pipe and the gap between the outer pipe and the inner pipe are shown in Table 10 If copper brazing filler is used the pipe connection is the most secure when the gap is kept between about 0 05 0 1mm Ta...

Page 73: ...he borax boric acid compound is added with potassium fluoride potassium chloride sodium fluoride etc so it has enhanced oxide film removing ability Precautions Remove the welding flux after welding If the chlorine contained in the welding flux is left in the pipe it may cause deterioration of lubricant Therefore do not use welding flux containing chlorine When adding water to the welding flux do n...

Page 74: ...ate 2 wet cloth or 3 heat absorbent Movement during welding Avoid any vibration during welding to prevent breaking or damaging the welded splice Oxidation prevention In order to improve the efficiency of welding several types of antioxidant available on the market may be used However the ingredients of such antioxidant may differ in thousands ways and some may erode the piping materials or have ne...

Page 75: ...adcell scale for charging refrigerant As a kind of HFC due to the properties of high pressure and high vapor rate R410A can t keep the liquid state and foam state of pneumatolytic refrigerant in the cylinder when the charging cylinder is used to charge R410A and the value is difficult to read Therefore it is recommended to use an electronic loadcell scale for charging refrigerant The electronic lo...

Page 76: ...the charge hose a charging port 1 2 UNF 20 screw threads per inch and corresponding package are required j Gas leakage detector Use a highly sensitive gas leakage detector designed specifically for HFC refrigerants For R410A the detection sensitivity is about 23g year 2 Frequently used tools a Vacuum pump b Torque wrench For 1 4 side to center distance 17 mm x 16 N m 160 kgf cm For 1 4 side to cen...

Page 77: ... the electronic loadcell scale Note Be sure to make setting so as to charge liquid When a cylinder with syphon tube is used you can charge liquid without turning the cylinder b Connect the charge hose of the manifold pressure gauge to the connection port of the electronic loadcell scale c Open the valve of the refrigerant cylinder and slightly open the charging valve and then close it d After zero...

Page 78: ...que Tighten the flare nut with cap at the connection between the indoor and outdoor units to the specified torque Remove the indoor unit outdoor unit Precaution Be careful not to break the piping for the indoor unit when it is stored in the original place 2 Installing the equipment a According to the steps described in 7 3 2 New installation 7 3 4 Replacing equipment never use the existing refrige...

Page 79: ...or discharging residual oil Weighing function excessive charging prevention function floating switch moisture indicator dryer and other ancillary functions of the recovery device subject to adjustment or replacement when necessary Circuit b Check the accessories to the refrigerant recovery device 2 Preparation for the recovery procedure a Installing the refrigerant recovery device The device shoul...

Page 80: ...ories tools A number of accessories tools are used to recover R410A The following are standard accessories 1 Recovery cylinder Use the recovery cylinder specified by the equipment manufacturer Be sure to use a removable cylinder compliant with the laws and regulations Do not use a general cylinder as recovery cylinder Note 1 The cylinder used when R410A is bought is borrowed Note 2 The cylinder wi...

Page 81: ...r R410A from the equipment without gas charging or recovery port use the tool to drill a hole in the copper pipe There are a number of types available on the market which have different names b The edge of needle may be damaged easily so such valve should be treated as semi supplies c When the vacuum level rises air will be absorbed into the hole easily Therefore please operate carefully 6 Vacuum ...

Page 82: ... AIR 2 4 RYD129A088A CAP 2 5 RYD133A049 PLATE ASSY ORNAMENT 1 6 RYD129A047 HOLDER FILTER 2 7 RYD011F037 LABEL MODEL NAME 1 8 26 RYD435A054A GRILLE ASSY AIR OUT 1 8 RYD435A055 GRILLE AIR OUTLET 1 9 RYD436A033A FLAP A 1 10 RYD436A034A FLAP B 1 11 12 RYD436A035 LOUVER ASSY R 1 11 RYD436A037 LOUVER 5 12 RYD129A096 PLATE CONNECTING R 1 13 14 RYD436A036 LOUVER ASSY L 1 13 RYD436A037 LOUVER 5 14 RYD129A0...

Page 83: ...X ASSY GEAR 1 22 RYD512T019B MOTOR STEPPING 1 23 RYD504A028 HARNESS ASSY 1 24 RYD423A009 HOSE DRAIN 1 25 SSA326A047 PLUG 1 26 RYD111A017A BASE ASSY 1 27 RYD129A084 CASE MOTOR U 1 28 RYD129A085 CASE MOTOR L 1 29 RYG923C001 BEARING PLANE 1 30 RYD431G002 IMPELLER 1 31 RYD512T022A MOTOR DC 1 32 RYD032A007A PLATE INSTALLATION 1 33 RYD129A103A COVER PIPE 1 34 RYD913A003 SCREW TAP 10 35 RYD132A011A LID 1...

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Page 85: ...3F002A UNION SOLDER 1 8 RYD129A089 PLATE BAFFLE 1 9 20 RYD501A073H CONTROL ASSY UNIT 1 9 10 RYD142A083 BOX ASSY CONTROL R 1 9 RYD142A081 BOX CONTROL R 1 10 RYD132A006 COVER CONTROL R 1 11 12 RYD142A082 BOX ASSY CONTROL L 1 11 RYD142A080 BOX CONTROL L 1 12 RYD132A007 COVER CONTROL L 1 13 RYD129A092 COVER BEND 1 14 RYD551A010 SENSOR ASSY 1 15 SSA551B017A SENSOR HUMIDITY 1 16 RYG561B001A BLOCK TERMIN...

Page 86: ...3 RYD132A009 LID CONTROL 1 24 RYD132A008 COVER LID 1 25 RYA941F001 SPRING LEAF 1 26 RYD129A104 COVER ASSY TB 1 27 RYD008A046B PARTS SET 1 28 RYD437A004A FILTER ASSY CLEAN PP HEPA 1 29 RYD437A010A FILTER ASSY CLEAN PP HEPA 1 30 RYD012A193 MANUAL INSTRUCTION INS 1 31 RLA502A001D CONTROL ASSY REMOTE 1 32 SSA554D183 KILLER NOISE 1 33 RYD566A092 CORD POWER 1 34 RYD011H050 LIST LABEL ENERGY 1 ...

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Page 88: ...RYD133A049 PLATE ASSY ORNAMENT 1 6 RYD129A047 HOLDER FILTER 2 7 RYD011F037A LABEL MODEL NAME 1 8 26 RYD435A054A GRILLE ASSY AIR OUT 1 8 RYD435A055 GRILLE AIR OUTLET 1 9 RYD436A033A FLAP A 1 10 RYD436A034A FLAP B 1 11 12 RYD436A035 LOUVER ASSY R 1 11 RYD436A037 LOUVER 5 12 RYD129A096 PLATE CONNECTING R 1 13 14 RYD436A036 LOUVER ASSY L 1 13 RYD436A037 LOUVER 5 14 RYD129A097 PLATE CONNECTING L 1 15 R...

Page 89: ...1 22 RYD512T019B MOTOR STEPPING 1 23 RYD504A028 HARNESS ASSY 1 24 RYD423A009 HOSE DRAIN 1 25 SSA326A047 PLUG 1 26 RYD111A017A BASE ASSY 1 27 RYD129A084 CASE MOTOR U 1 28 RYD129A085 CASE MOTOR L 1 29 RYG923C001 BEARING PLANE 1 30 RYD431G002 IMPELLER 1 31 RYD512T022A MOTOR DC 1 32 RYD032A007A PLATE INSTALLATION 1 33 RYD129A103A COVER PIPE 1 34 RYD913A003 SCREW TAP 10 35 RYD132A011A LID 1 ...

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Page 91: ...3F002A UNION SOLDER 1 8 RYD129A089 PLATE BAFFLE 1 9 20 RYD501A073J CONTROL ASSY UNIT 1 9 10 RYD142A083 BOX ASSY CONTROL R 1 9 RYD142A081 BOX CONTROL R 1 10 RYD132A006 COVER CONTROL R 1 11 12 RYD142A082 BOX ASSY CONTROL L 1 11 RYD142A080 BOX CONTROL L 1 12 RYD132A007 COVER CONTROL L 1 13 RYD129A092 COVER BEND 1 14 RYD551A010 SENSOR ASSY 1 15 SSA551B017A SENSOR HUMIDITY 1 16 RYG561B001A BLOCK TERMIN...

Page 92: ... RYD132A009 LID CONTROL 1 24 RYD132A008 COVER LID 1 25 RYA941F001 SPRING LEAF 1 26 RYD129A104 COVER ASSY TB 1 27 RYD008A046B PARTS SET 1 28 RYD437A004A FILTER ASSY CLEAN PP HEPA 1 29 RYD437A010A FILTER ASSY CLEAN PP HEPA 1 30 RYD012A193 MANUAL INSTRUCTION INS 1 31 RLA502A001D CONTROL ASSY REMOTE 1 32 SSA554D183 KILLER NOISE 1 33 RYD566A092 CORD POWER 1 34 RYD011H050A LIST LABEL ENERGY 1 ...

Page 93: ... 90 ...

Page 94: ...RYD133A049 PLATE ASSY ORNAMENT 1 6 RYD129A047 HOLDER FILTER 2 7 RYD011F037B LABEL MODEL NAME 1 8 26 RYD435A054A GRILLE ASSY AIR OUT 1 8 RYD435A055 GRILLE AIR OUTLET 1 9 RYD436A033A FLAP A 1 10 RYD436A034A FLAP B 1 11 12 RYD436A035 LOUVER ASSY R 1 11 RYD436A037 LOUVER 5 12 RYD129A096 PLATE CONNECTING R 1 13 14 RYD436A036 LOUVER ASSY L 1 13 RYD436A037 LOUVER 5 14 RYD129A097 PLATE CONNECTING L 1 15 R...

Page 95: ...1 22 RYD512T019B MOTOR STEPPING 1 23 RYD504A028 HARNESS ASSY 1 24 RYD423A009 HOSE DRAIN 1 25 SSA326A047 PLUG 1 26 RYD111A017A BASE ASSY 1 27 RYD129A084 CASE MOTOR U 1 28 RYD129A085 CASE MOTOR L 1 29 RYG923C001 BEARING PLANE 1 30 RYD431G002 IMPELLER 1 31 RYD512T022A MOTOR DC 1 32 RYD032A007A PLATE INSTALLATION 1 33 RYD129A103A COVER PIPE 1 34 RYD913A003 SCREW TAP 10 35 RYD132A011A LID 1 ...

Page 96: ... 93 ...

Page 97: ...3F002A UNION SOLDER 1 8 RYD129A089 PLATE BAFFLE 1 9 20 RYD501A073K CONTROL ASSY UNIT 1 9 10 RYD142A083 BOX ASSY CONTROL R 1 9 RYD142A081 BOX CONTROL R 1 10 RYD132A006 COVER CONTROL R 1 11 12 RYD142A082 BOX ASSY CONTROL L 1 11 RYD142A080 BOX CONTROL L 1 12 RYD132A007 COVER CONTROL L 1 13 RYD129A092 COVER BEND 1 14 RYD551A010 SENSOR ASSY 1 15 SSA551B017A SENSOR HUMIDITY 1 16 RYG561B001A BLOCK TERMIN...

Page 98: ... RYD132A009 LID CONTROL 1 24 RYD132A008 COVER LID 1 25 RYA941F001 SPRING LEAF 1 26 RYD129A104 COVER ASSY TB 1 27 RYD008A046B PARTS SET 1 28 RYD437A004A FILTER ASSY CLEAN PP HEPA 1 29 RYD437A010A FILTER ASSY CLEAN PP HEPA 1 30 RYD012A193 MANUAL INSTRUCTION INS 1 31 RLA502A001D CONTROL ASSY REMOTE 1 32 SSA554D183 KILLER NOISE 1 33 RYD566A092 CORD POWER 1 34 RYD011H050B LIST LABEL ENERGY 1 ...

Page 99: ... 96 ...

Page 100: ...RYD133A049 PLATE ASSY ORNAMENT 1 6 RYD129A047 HOLDER FILTER 2 7 RYD011F037C LABEL MODEL NAME 1 8 26 RYD435A054A GRILLE ASSY AIR OUT 1 8 RYD435A055 GRILLE AIR OUTLET 1 9 RYD436A033A FLAP A 1 10 RYD436A034A FLAP B 1 11 12 RYD436A035 LOUVER ASSY R 1 11 RYD436A037 LOUVER 5 12 RYD129A096 PLATE CONNECTING R 1 13 14 RYD436A036 LOUVER ASSY L 1 13 RYD436A037 LOUVER 5 14 RYD129A097 PLATE CONNECTING L 1 15 R...

Page 101: ...1 22 RYD512T019B MOTOR STEPPING 1 23 RYD504A028 HARNESS ASSY 1 24 RYD423A009 HOSE DRAIN 1 25 SSA326A047 PLUG 1 26 RYD111A017A BASE ASSY 1 27 RYD129A084 CASE MOTOR U 1 28 RYD129A085 CASE MOTOR L 1 29 RYG923C001 BEARING PLANE 1 30 RYD431G002 IMPELLER 1 31 RYD512T022A MOTOR DC 1 32 RYD032A007A PLATE INSTALLATION 1 33 RYD129A103A COVER PIPE 1 34 RYD913A003 SCREW TAP 10 35 RYD132A011A LID 1 ...

Page 102: ... 99 ...

Page 103: ...23F002B UNION SOLDER 1 8 RYD129A089 PLATE BAFFLE 1 9 20 RYD501A073L CONTROL ASSY UNIT 1 9 10 RYD142A083 BOX ASSY CONTROL R 1 9 RYD142A081 BOX CONTROL R 1 10 RYD132A006 COVER CONTROL R 1 11 12 RYD142A082 BOX ASSY CONTROL L 1 11 RYD142A080 BOX CONTROL L 1 12 RYD132A007 COVER CONTROL L 1 13 RYD129A092 COVER BEND 1 14 RYD551A010 SENSOR ASSY 1 15 SSA551B017A SENSOR HUMIDITY 1 16 RYG561B001A BLOCK TERMI...

Page 104: ... RYD132A009 LID CONTROL 1 24 RYD132A008 COVER LID 1 25 RYA941F001 SPRING LEAF 1 26 RYD129A104 COVER ASSY TB 1 27 RYD008A046B PARTS SET 1 28 RYD437A004A FILTER ASSY CLEAN PP HEPA 1 29 RYD437A010A FILTER ASSY CLEAN PP HEPA 1 30 RYD012A193 MANUAL INSTRUCTION INS 1 31 RLA502A001D CONTROL ASSY REMOTE 1 32 SSA554D183 KILLER NOISE 1 33 RYD566A092A CORD POWER 1 34 RYD011H050C LIST LABEL ENERGY 1 ...

Page 105: ... 102 ...

Page 106: ...OUT 1 5 RYF132A002 PANEL ASSY SERVICE 1 6 RYF944B001 HANDLE 1 7 RYF142A013 COVER TB 1 8 RYF913A002 SCREW TAP 12 9 RYF913A002A SCREW TAP 5 10 W010D04X008 TAP SCREW CRS TRS 1 6 11 W010D04X012 TAP SCREW CRS TRS 1 2 12 RYF129A006 PLATE 1 13 RYF937A002A CLAMP WIRE 1 14 18 RYF401A011G FAN EQUIP ASSY 1 14 RYF116A006 BRACKET ASSY MOTOR 1 15 RYF512T010 MOTOR DC 1 16 RYF431B502 PROPELLER 1 17 SSA914B007AC N...

Page 107: ... 104 18 RYF141A005 PLATE BAFFLE 1 19 RYF111A003F BASE ASSY 1 ...

Page 108: ...D011 INSULATION COMP 1 16 RYF382F013 COIL SOLENOID 1 17 SSA382F210AY COIL SOLENOID 1 18 AHT201A864DS COMPRESSOR ASSY 1 19 SSA914C013A NUT FLANGE 3 20 RYF941C014 CUSHION RUBBER 3 21 RYF932C019 PUBBER WASHER 3 22 RYF932C018 GASKET COVER 1 23 RSA947K005 COVER TERMINAL 1 24 RYF914C008 NUT FLANGE 1 25 38 RYF501A040F CONTROL ASSY 1 25 RYF142A017 BOX ASSY CONTROL 1 26 RYF142A015 BOX ASSY CONTROL A 1 27 R...

Page 109: ... 106 40 RYF011F037B LABEL MODEL NAME 1 41 RYF011H029 LIST LABEL ENERGY 1 42 RYC008A002 PARTS STANDARD 1 ...

Page 110: ...L ASSY SERVICE 1 6 RYF944B001 HANDLE 1 7 RYF142A013 COVER TB 1 8 RYF913A002 SCREW TAP 12 9 RYF913A002A SCREW TAP 5 10 W010D04X008 TAP SCREW CRS TRS 1 6 11 W010D04X012 TAP SCREW CRS TRS 1 2 12 RYF129A006 PLATE 1 13 RYF937A002A CLAMP WIRE 1 14 18 RYF401A011G FAN EQUIP ASSY 1 14 RYF116A006 BRACKET ASSY MOTOR 1 15 RYF512T010 MOTOR DC 1 16 RYF431B502 PROPELLER 1 17 SSA914B007AC NUT TH 1 18 RYF141A005 P...

Page 111: ... 108 19 RYF111A003F BASE ASSY 1 ...

Page 112: ...SULATION COMP 1 15 RYF154D011 INSULATION COMP 1 16 RYF382F013 COIL SOLENOID 1 17 SSA382F210AY COIL SOLENOID 1 18 AHT201A864DS COMPRESSOR ASSY 1 19 SSA914C013A NUT FLANGE 3 20 RYF941C014 CUSHION RUBBER 3 21 RYF932C019 PUBBER WASHER 3 22 RYF932C018 GASKET COVER 1 23 RSA947K005 COVER TERMINAL 1 24 RYF914C008 NUT FLANGE 1 25 38 RYF501A040F CONTROL ASSY 1 25 RYF142A017 BOX ASSY CONTROL 1 26 RYF142A015 ...

Page 113: ... 110 38 RYF129A003 HOLDER SENSOR 1 39 RYF142A011 LID 1 40 RYF011F037B LABEL MODEL NAME 1 41 RYF011H029A LIST LABEL ENERGY 1 42 RYC008A002 PARTS STANDARD 1 ...

Page 114: ...L ASSY SERVICE 1 6 RYF944B001 HANDLE 1 7 RYF142A013 COVER TB 1 8 RYF913A002 SCREW TAP 12 9 RYF913A002A SCREW TAP 5 10 W010D04X008 TAP SCREW CRS TRS 1 6 11 W010D04X012 TAP SCREW CRS TRS 1 2 12 RYF129A006 PLATE 1 13 RYF937A002A CLAMP WIRE 1 14 18 RYF401A011G FAN EQUIP ASSY 1 14 RYF116A006 BRACKET ASSY MOTOR 1 15 RYF512T010 MOTOR DC 1 16 RYF431B502 PROPELLER 1 17 SSA914B007AC NUT TH 1 18 RYF141A005 P...

Page 115: ... 112 19 RYF111A003F BASE ASSY 1 ...

Page 116: ...D011 INSULATION COMP 1 16 RYF382F013 COIL SOLENOID 1 17 SSA382F210AY COIL SOLENOID 1 18 AHT201A864DS COMPRESSOR ASSY 1 19 SSA914C013A NUT FLANGE 3 20 RYF941C014 CUSHION RUBBER 3 21 RYF932C019 PUBBER WASHER 3 22 RYF932C018 GASKET COVER 1 23 RSA947K005 COVER TERMINAL 1 24 RYF914C008 NUT FLANGE 1 25 38 RYF501A040F CONTROL ASSY 1 25 RYF142A017 BOX ASSY CONTROL 1 26 RYF142A015 BOX ASSY CONTROL A 1 27 R...

Page 117: ... 114 40 RYF011F037B LABEL MODEL NAME 1 41 RYF011H029B LIST LABEL ENERGY 1 42 RYC008A002 PARTS STANDARD 1 ...

Page 118: ...A GRILL AIR OUT 1 6 RYC132A200 PANEL SERVICE 1 7 RYC131A200 GUARD FIN 1 8 RYS944B200 HANDLE 1 9 RYF913A002 SCREW TAP 15 10 RYF913A002A SCREW TAP 6 11 W010D04X008 TAP SCREW CRS TRS 1 4 12 RYF129A006 PLATE 1 13 RYF937A002A CLAMP WIRE 1 14 18 RYF401A504 FAN EQUIP ASSY 1 14 RYC116A200 BRACKET MOTOR 1 15 RYF512T011 MOTOR DC 1 16 RYF431B504 PROPELLER 1 17 SSA914B007AC NUT TH 1 18 RYF141A009 PLATE ASSY B...

Page 119: ... 116 19 RYF111A002G BASE ASSY 1 ...

Page 120: ...28 INSULATION COMP 1 17 AHT201C134DA COMPRESSOR ASSY 1 18 SSA914C013A NUT FLANGE 3 19 RYF941C014A CUSHION RUBBER 3 20 RYF932C018 GASKET COVER 1 21 RSA947K005 COVER TERMINAL 1 22 RYF914C008 NUT FLANGE 1 23 RYF501A507D CONTROL ASSY 1 23 RYF505A503B PWB ASSY MAIN 1 24 RYF505A504B PWB ASSY SUB 1 25 RYF011G502B LABEL WIRING 1 26 RYG561B001A BLOCK TERMINAL 1 27 RYG564A002 HOLDER FUSE 1 28 RYD564A002 FUS...

Page 121: ... 118 42 RYC008A002 PARTS STANDARD 1 ...

Page 122: ...ENCY WALL MOUNTED TYPE ROOM AIR CONDITIONERS MITSUBISHI HEAVY INDUSTRIES EUROPE LTD AIR CONDITIONING DIVISION 4th Floor International Buildings 71 Kingsway London WC2B 6ST U K Phone 44 0 20 7421 6208 Fax 44 0 20 7421 6209 ...