Toshiba RAS-B10GKVP-E, Service Manual

Page 1: ...PumpType Cooling OnlyType Indoor Unit Indoor Unit RAS B10GKVP E RAS M10GKCVP E RAS B13GKVP E RAS M13GKCVP E RAS B16GKVP E RAS M16GKCVP E Outdoor Unit Outdoor Unit RAS M14GAV E RAS M14GACV E RAS M18GAV E RAS M18GACV E Revised pages 25 26 27 and 28 Jan 2006 Revised pages 3 and 71 May 2006 Revised pages 21 22 121 122 and Back cover Mar 2010 Example ...

Page 2: ...DIAGRAM 23 6 SPECIFICATIONS OF ELECTRICAL PARTS 25 7 REFRIGERANT CYCLE DIAGRAM 26 8 CONTROL BLOCK DIAGRAM 31 9 OPERATION DESCRIPTION 34 10 INSTALLATION PROCEDURE 59 11 HOW TO DIAGNOSE THE TROUBLE 76 12 HOW TO REPLACE THE MAIN PARTS 99 13 EXPLODED VIEWS AND PARTS LIST 119 Cord Heater Installation Work Appendix 1 ...

Page 3: ...n unit and installation tools are different from those used for the conventional refrigerant units Accordingly special tools are required for the new refrigerant R410A units For connecting pipes use new and clean piping materials with high pressure fittings made for R410A only so that water and or dust does not enter Moreover do not use the existing piping because there are some problems with pres...

Page 4: ... qualified electrician in accordance with the Installa tion Manual Make sure the air conditioner uses an exclusive circuit An insufficient circuit capacity or inappropriate installation may cause fire When wiring use the specified cables and connect the terminals securely to prevent external forces applied to the cable from affecting the terminals Be sure to provide grounding Do not connect ground...

Page 5: ...be used in combination see the service manual of each indoor unit Type Heat pump Cooling only Outdoor unit RAS M14GAV E RAS M18GAV E RAS M14GACV E RAS M18GACV E Indoor unit RAS B10GKVP E RAS B13GKVP E RAS M10GKV E RAS M13GKV E RAS M10GDV E RAS M13GDV E RAS B10GKVP E RAS B13GKVP E RAS B16GKVP E RAS M10GKV E RAS M13GKV E RAS M16GKV E RAS M10GDV E RAS M13GDV E RAS M16GDV E RAS M10GKCVP E RAS M13GKCVP...

Page 6: ...ng Heating C Unit model Installation plate Wireless remote controller Batteries Remote controller holder Indoor unit Zeolite plus filter Plasma pure filter Accessory Remote controller holder mounting screw Owner s manual Mounting screw Installation manual Unit model Installation manual Outdoor unit Specifications Drain nipple Water proof rubber cap RAS B10GKVP E RAS B13GKVP E RAS B16GKVP E RAS M14...

Page 7: ...ling Heating C temperature range Outdoor Cooling Heating C Unit model Installation plate Wireless remote controller Batteries Remote controller holder Indoor unit Zeolite plus filter Plasma pure filter Accessory Remote controller holder mounting screw Owner s manual Mounting screw Installation manual Unit model Installation manual Outdoor unit Specifications Drain nipple Water proof rubber cap RAS...

Page 8: ... 74 1 37 to 5 64 Power Consumption W 570 170 to 880 1100 170 to 1280 1070 230 to 1290 1080 230 to 1300 570 170 to 880 1100 170 to 1280 1070 230 to 1290 1080 230 to 1300 570 170 to 880 1100 170 to 1280 1070 230 to 1290 1080 230 to 1300 Operation mode Heating Volts V 220 230 240 Operation status 1 unit 2 units 1 unit 2 units 1 unit 2 units Operating indoor unit A B 10 13 10 10 13 10 10 13 10 10 13 1...

Page 9: ...0 1500 220 to 1700 1550 260 to 2150 1600 260 to 2170 1600 260 to 2170 1600 260 to 2170 600 220 to 800 1100 220 to 1400 1500 220 to 1700 1550 260 to 2150 1600 260 to 2170 1600 260 to 2170 1600 260 to 2170 Operation mode Heating Volts V 220 230 240 Operation status 1 unit 2 units 1 unit 2 units 1 unit 2 units Operating indoor unit A B 10 13 16 10 10 13 10 13 13 16 10 10 13 16 10 10 13 10 13 13 16 10...

Page 10: ...d rps Compressor speed rps 0 10 20 30 40 50 60 70 80 90 Conditions Indoor DB 27 C WB 19 C Outdoor DB 35 C Air flow High Pipe length 7 5m 2 2 units operating 230V 7 8 6 5 4 3 2 1 0 Current A 0 10 20 30 40 50 60 70 80 90 90 100 95 105 85 80 75 70 65 60 55 50 32 33 35 34 37 36 38 39 40 41 42 43 Conditions Indoor DB 20 C Outdoor DB 7 C WB 6 C Air flow High Pipe length 7 5m 2 2 units oper 230V Conditio...

Page 11: ... 140 Conditions Indoor DB 20 C Outdoor DB 7 C WB 6 C Air flow High Pipe length 7 5m 2 2 units oper 230V Conditions Indoor DB 27 C WB 19 C Outdoor DB 35 C Air flow High Pipe length 7 5m 2 2 units operating 230V Conditions Indoor DB 27 C Outdoor DB 35 C Indoor air flow High Pipe length 7 5m 2 2 units operating Conditions Indoor DB 27 C WB 19 C Indoor air flow High Pipe length 7 5m 2 2 units operatin...

Page 12: ...e pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused 5 After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur 6 When an air conditioning system charged...

Page 13: ...ure that water or dust does not enter the pipe interior that no other oil than lubricating oils used in the installed air water heat pump is used and that refrigerant does not leak When using lubricating oils in the piping processing use such lubricating oils whose water content has been removed When stored be sure to seal the container with an airtight cap or any other cover 1 Flare processing pr...

Page 14: ...4 3 8 1 2 5 8 Outer diameter mm 6 35 9 52 12 70 15 88 Thickness mm 0 8 0 8 0 8 1 0 Dimension mm A B C D 9 1 9 2 6 5 13 13 2 13 5 9 7 20 16 6 16 0 12 9 23 19 7 19 0 16 0 25 Flare nut width mm 17 22 26 29 Nominal diameter 1 4 3 8 1 2 5 8 Outer diameter mm 6 35 9 52 12 70 15 88 Thickness mm 0 8 0 8 0 8 1 0 A mm Flare tool for R410A Conventional flare tool clutch type Clutch type Wing nut type 0 to 0 ...

Page 15: ... designated by manufacturers Table 3 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manufacturer If any other oil is used the lubricating oils may deteriorate and cause the compressor to burn out Table 3 2 7 Tightening torque of flare for R410A Reference values Nominal diameter 1 4 3 8 1 2 5 8 3 4 Outer diameter mm 6 35 9 52 12 70 15 88 ...

Page 16: ... of sludge clogging of capillary etc Accordingly the tools to be used are classified into the following three types 1 Tools exclusive for R410A Those which cannot be used for conventional refrigerant R22 2 Tools exclusive for R410A but can be also used for conventional refrigerant R22 3 Tools commonly used for R410A and for conventional refrigerant R22 The table below shows the tools exclusive for...

Page 17: ...and the connecting port of the electronic balance and charge liquid refrigerant Water heat exchanger unit Outdoor unit Opened Opened Refrigerant cylinder with siphon Check valve Open close valve for charging Electronic balance for refrigerant charging Opened Closed Service port 3 4 Recharging of Refrigerant When it is necessary to recharge refrigerant charge the specified amount of new refrigerant...

Page 18: ... composed of silver and copper It is used to join iron copper or copper alloy and is relatively expensive though it excels in solderability 2 Phosphor bronze brazing filler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak in adhe...

Page 19: ...ore use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing 3 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring i...

Page 20: ...674 450 288 91 290 19 125 5 163 250 167 5 42 42 3 47 or more 74 or more 140 or more 7 Knockout system Knockout system Zeolite plus filter Air ionizer Installation plate hanging section Remote controller holder Wireless remote controller Stud bolt hole for Ø6 Stud bolt hole for Ø8 to Ø10 Outline of installation plate Lower part hanging section Center line of installation plate Center line of main u...

Page 21: ...ecting pipe port Pipe dia Ø9 52 When installing the outdoor unit leave open in at least two of directions A B C and D shown in the figure below A leg part B 320 306 290 145 5 Anchor bort long hole pitch Ø7 hole pitch 30 54 108 600 90 125 60 30 20 69 5 147 155 342 483 257 108 141 194 247 320 88 145 Z 157 79 21 8 71 780 500 32 25 22 21 600 52 35 449 483 6 550 600 600 38 38 320 320 54 54 11 11 R5 5 R...

Page 22: ...5 Connecting pipe port Pipe 9 52 Nameplate RAS M14GAV E RAS M18GAV E Heat pump models RAS M14GACV E RAS M18GACV E Cooling only models In a case that is attached at the side of the model name on the nameplate its packed valve cover is made by metal Revised on Mar 2010 ...

Page 23: ...ERMO SENSOR TA BLK BLK BLK CN03 WHI 1 2 1 2 WHI 1 2 3 4 5 1 2 3 4 5 1 2 1 2 1 2 3 4 5 1 2 3 4 5 LOUVER MOTOR FAN MOTOR INDOOR TERMINAL BLOCK DC MOTOR WHI YEL YEL YEL YEL FUSE F01 1 3 4 5 1 3 4 5 RED BLK WHI YEL 6 6 BLU DC5V DC12V DB01 CN21 CN23 CN34 CN22 AC 250V BLK WHI 2 1 3 1 3 RED GRN YEL T3 15A Heat exchanger Micro SW BRW BLU RED LINE FILTER TNR CN33 WHI BLK 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 RED...

Page 24: ... 24 5 2 Outdoor Unit RAS M14GAV E RAS M18GAV E Heat pump models RAS M14GACV E RAS M18GACV E Cooling only models ...

Page 25: ...Compressor thermo Rectifier DB01 DB02 IGBT Q404 Reactor Main Reactor Sub Coil for P M V Coil for 4 way valve Model name ADR2520 R15TB or SC 20 01J A ADR25H 200R8TB SWT 72 or SWT 83 ICF 140 43 4R G5N 1A DI12D1 O or G4A 1A PE Inverter attached Inverter attached Inverter attached Inverter attached Inverter attached Inverter attached Inverter attached Inverter attached For protection of switching powe...

Page 26: ...position Refrigerant flow Cooling Refrigerant flow Heating INDOOR UNIT T1 TO Temp measurement Indoor heat exchanger Indoor fan Deoxidized copper pipe Both A and B room Outer dia 6 35mm Thickness 0 8mm Sectional shape of heat insulator Allowable height difference 10m Allowable pipe length P Pressure measurement Gauge attaching port Vacuum pump connecting port Strainer Pulse motor valve at liquid si...

Page 27: ...frigerant flow Cooling INDOOR UNIT T1 TO Temp measurement Indoor heat exchanger Indoor fan Deoxidized copper pipe Both A and B room Outer dia 6 35mm Thickness 0 8mm Sectional shape of heat insulator Allowable height difference 10m Allowable pipe length P Pressure measurement Gauge attaching port Vacuum pump connecting port Strainer Pulse motor valve at liquid side CAM B22YGTF 3 TD TGa TGb 4 way va...

Page 28: ...gerant flow Cooling Refrigerant flow Heating INDOOR UNIT T1 TO Temp measurement Indoor heat exchanger Indoor fan Deoxidized copper pipe Both A and B room Outer dia 6 35mm Thickness 0 8mm Sectional shape of heat insulator Allowable height difference 10m Allowable pipe length P Pressure measurement Gauge attaching port Vacuum pump connecting port Strainer Pulse motor valve at liquid side CAM B22YGTF...

Page 29: ...heck position Refrigerant flow Cooling INDOOR UNIT T1 TO Temp measurement Indoor heat exchanger Indoor fan Deoxidized copper pipe Both A and B room Outer dia 6 35mm Thickness 0 8mm Sectional shape of heat insulator Allowable height difference 10m Allowable pipe length P Pressure measurement Gauge attaching port Vacuum pump connecting port Strainer Pulse motor valve at liquid side CAM B22YGTF 3 TD ...

Page 30: ...ndoor fan High High High High Outdoor fan 750rpm 750rpm 750rpm 750rpm Compressor revolution rps 60 76 78 80 Temperature condition C Indoor Outdoor 27 19 35 No of operating units 1 unit 2 units Operating combination Unit A B 10 13 16 10 10 13 10 13 13 16 10 Standard pressure P MPa 0 9 to 1 1 0 8 to 1 0 0 8 to 1 0 0 9 to 1 1 0 9 to 1 1 0 9 to 1 1 0 9 to 1 1 Heat exchanger pipe temp T1 C T2 C 11 to 1...

Page 31: ...Hz Remote Controller Operation START STOP Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting Hi POWER SLEEP Operation Mode Selection AUTO COOL DRY HEAT REMOTE CONTROLLER ECO Air Purifier Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal Receiver and Indication Functions Cold draft preventing Function 3 minute Dela...

Page 32: ...ircuit Clock Frequency Oscillator Circuit Power Supply Circuit Infrared Rays 36 7kHz Remote Controller Operation START STOP Thermo Setting Fan Speed Selection ON TIMER Setting OFF TIMER Setting Louver AUTO Swing Louver Direction Setting Hi POWER SLEEP Operation Mode Selection AUTO COOL DRY REMOTE CONTROLLER ECO Air Purifier Heat Exchanger Sensor Tc Room Temperature Sensor Ta Infrared Rays Signal R...

Page 33: ... temp control Error displey Signal communication to MCU M C PWM synthesis function Input current release control IGBT over current detect control Outdoor fan control High power factor correction control Signal communication to MCU Gas side pipe temp sensor unit B TGb Gas side pipe temp sensor unit A TGa Outdoor Heat exchanger temp sensor TE Discharge temp sensor TD Suction temp sensor TS Outdoor a...

Page 34: ...eration control 2 Role of outdoor unit controller Receiving the operation command signal Serial signal from the indoor unit controller the outdoor unit performs its role Compressor operation control Operation control of outdoor fan motor P M V control 4 way valve control Operations followed to judgment of serial signal from indoor side Detection of inverter input current and current release operat...

Page 35: ...porary operation 48 12 Air purifying control 48 Air purifying control Detection of abnormality 49 13 Discharge temperature control 49 14 Pulse motor valve P M V control 50 15 Clean operation 51 16 Clean operation release 52 17 Select switch on remote controller 53 9 3 Auto Restart Function 54 9 3 1 How to Set the Auto Restart Function 54 9 3 2 How to Cancel the Auto Restart Function 55 9 3 3 Power...

Page 36: ...on function Compressor Outdoor fan motor 4 way valve Pulse motor valve P M V Signal receiving Indoor unit control Operation command Serial signal send receive Selection of operation conditions ON OFF Serial signal send receive Outdoor unit control Inverter Item 1 Basic operation Operation flow and applicable data etc 1 Operation control Receiving the user s operation condition setup the operation ...

Page 37: ...ing Cooling dry Fan solo air purification Heating Heating Fan solo air purification Cleaning operation Cleaning operation Cleaning operation Cooling dry Cooling dry Cleaning operation Cleaning operation Fan solo air purification Fan solo air purification Cleaning operation Cleaning operation Heating Heating Cleaning operation Actual indoor unit operation Cooling dry Cooling dry Heating Heating Fan...

Page 38: ...blowing directly to persons Description 1 Detects the room temperature Ta when the operation started 2 Selects an operation mode from Ta in the left figure 3 Fan operation continues until an operation mode is selected 4 When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20 C or more the fan operation is performed with Super Ultra LOW mode ...

Page 39: ...blowing 1 When setting the fan speed to L L M M or H on the remote controller the operation is performed with the constant speed shown in Fig 1 2 When setting the fan speed to AUTO on the remote controller revolution of the fan motor is controlled to the fan speed level shown in Fig 2 and Table 1 according to the setup tempera ture room temperature and heat exchanger temperature Fan speed level WF...

Page 40: ... heating operation Heat pump model Fig 3 Fig 4 Fig 5 Cold draft preventive control Fig 6 In starting and in stability FAN AUTO FAN Manual In starting Until 12 minutes passed after operation start When 12 to 25 minutes passed after operation start and room temp is 3 C or lower than set temp Room temp Set temp 4 C In stability When 12 to 25 minutes passed after operation start and room temp is highe...

Page 41: ...6 450 700 750 850 450 650 700 750 350 550 650 700 350 550 550 550 300 450 450 550 300 350 350 450 450 650 700 750 450 550 650 700 450 650 700 750 To Outdoor sensor temp C rpm RAS M14GAV E RAS M14GACV E Compressor revolution rps To 38 C 28 To 38 Normal operation 15 To 28 10 To 15 5 5 To 10 0 To 5 5 Econo operation To 38 C To 38 C To is abnormal 20 30 60 60 450 700 750 850 450 650 700 750 350 550 65...

Page 42: ... 700 250 600 250 700 250 700 250 600 250 700 250 700 250 400 250 700 250 750 Compressor revolution rps Fan revolution To 10 C Normal operation 5 5 To 10 5 To 5 5 To 5 To 10 C Econo operation 5 5 To 10 5 To 5 5 To 5 To is abnormal 20 60 60 MIN MAX MIN MAX MIN MAX 250 400 250 600 250 700 250 400 250 700 250 750 250 600 250 750 250 800 250 600 250 750 250 800 250 400 250 500 250 600 250 400 250 600 2...

Page 43: ...he indoor units and the inverter operates the compressor at the calculated revolutions 3 The compressor operation range in each operating mode is shown in the left table 1 The input current of the outdoor unit is detected in the inverter section of the outdoor unit 2 According to the detected outdoor temperature the specified value of the current is selected 3 Whether the current value exceeds the...

Page 44: ...condensation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value Description 1 When temperature of the indoor heat exchanger drops below 5 C the compressor speed is reduced P zone 2 When temperature of the indoor heat exchanger rises in the range from 6 C to under 7 C the compressor speed is kept Q zone 3 When temperature of t...

Page 45: ...following conditions are met Condition 1 When the discharge sensor temperature Td is less than 30 C Condition 2 When 2 hours or more have elapsed after cooling dry or heating operation stops Condition 3 When the outdoor sensor temperature To is as shown in the left figure The necessity of defrost operation is detected by the outdoor heat exchanger temperature The conditions to detect the necessity...

Page 46: ... memory position Room temp Set temp 3 0 Room temp Set temp 3 0 YES YES YES NO NO NO Louver angle Horizontal 0 Item 9 Louver control 1 Louver position Operation flow and applicable data etc 2 Air direction adjustment 3 Swing This function controls the air direction of the indoor unit The position is automatically controlled according to the operation mode COOL HEAT The set louver position is stored...

Page 47: ... the set and the room temperature as shown in the following figure The time correction is performed for 8 minutes each However the first correction is performed 150 seconds after start of the operation Heating operation Description Cooling operation 1 The room temperature Tao at the start time of DRY operation is detected 2 According to difference between the room temperature and the set temperatu...

Page 48: ...while the air conditioner operates the air conditioner and the air purifier start operation The air ion generator operates linked with the air purifying operation Description 1 When pressing RESET button the temporary AUTO operation starts 2 When keeping RESET button pressed for 3 seconds or more Pi Pi Pi sound is heard and AUTO RESTART control is changed 3 When keeping RESET button pressed for 10...

Page 49: ...symptom such as the build up of dirt has been detected while the air purifier is ON 4 When the electric dust collector has not been installed correctly Trouble case 2 or 3 is deemed to have occurred when the action concerned continues for more than one second 3 Operation The sequence that FILTER indicator is turned on are described in the left flowchart 1 When 1000H timer counts up the FILTER indi...

Page 50: ...nger temperature at evaporation side PMV Pulse Motor Valve Description 1 When starting the operation move the valve once until it fits to the stopper Initialize In this time Click sound may be heard 2 Adjust the open degree of valve by super heat amount SH control 3 If the discharge temperature was excessively up adjust the open degree of valve so that it is in the range of set temperature Dischar...

Page 51: ...for the second time without delay within 10 minutes Description 1 Purpose The clean operation is to minimize the growth of mold bacteria etc by running the fan and drying so as to keep the inside of the air conditioner clean Clean operation When the cooling or dry operation shuts down the unit automatically starts the clean operation which is then performed for the specified period based on durati...

Page 52: ... function is not required Hold down the auto operation switch on the indoor unit for at least 3 seconds but not more than 10 seconds The indoor unit s buzzer emits three beeps and the OPERATION indicator flashes at 5 Hz intervals This completes the clean operation setting J04 Item 16 Clean operation release Operation flow and applicable data etc Setting the clean operation release Setting the clea...

Page 53: ...ion The indoor unit on which the remote controller selection has been set to B receives the signal of the remote control ler also set to B At the factory the remote controller selection is set to A on all the indoor units There is no A setting display Setting the remote controller Switching between A and B is enabled by cutting the jumper wire inside the battery box using pliers 1 Slide open the r...

Page 54: ...rating When the unit is in operation When the unit is turned on by this function the louver will not swing even though it was swinging automati cally before shutting down While the filter check indicator is on the RESET button has the function of filter reset button Operation Press RESET button for more than three seconds Less than 10 seconds Motions The unit is on standby The unit starts to opera...

Page 55: ... indicator 9 4 1 How to Turn Off FILTER Indicator Press RESET button on the indoor unit NOTE If RESET button is pushed while the FILTER indica tor is not lit the indoor unit will start the automatic operation When you want a temporary operation while the FILTER lamp lights press RESET button to turn off the FILTER lamp See page 48 Operation Press RESET button for more than three seconds Less than ...

Page 56: ... start operation A receiving beep is heard Press the button again to stop operation A receiving beep is heard If no receiving sound is heard from the indoor unit press the button twice 3 Mode select button MODE Press this button to select a mode Each time you press the button the modes cycle in order from A Auto changeover control Cool Dry Heat and back to A A receiving beep is heard 4 Temperature...

Page 57: ... time setting for timer operation or the clock time is indicated The current time is always indicated except during TIMER operation 7 Hi POWER indicator Indicates when the Hi POWER operation starts Press the Hi POWER button to start and press it again to stop the operation 8 MEMORY indicator Flashes for 3 seconds when the MEMO button is pressed during operation The mark is shown when holding down ...

Page 58: ...nd thermo off occurred the following operations start Refer to the figure below 1 The indoor unit of the room A room in which thermo off did not occur starts a continuous operation with the setup number of revolution 2 The indoor unit of the room B room in which thermo off occurred starts intermittent operation of the indoor fan The indoor fan operates with number of revolution of UL or SUL Fan ON...

Page 59: ... C and D shown in the right figure Ensure sufficient space to allow drainage A B C D Power cord Y Wall Bottom right Rear right Right Left Bottom left Rear left As shown in the figure position power cord and connecting cable downward and lead out along piping connection port Before installing the wireless remote controller With the remote controller cover removed correctly load the supplied batteri...

Page 60: ...iameter Gas side Outer diameter RAS B10GKVP E B13GKVP E 6 35 mm 9 52 mm RAS B16GKVP E 6 35 mm 12 7 mm Shield pipe for extension drain hose polyethylene foam 6 mm thick Q ty 1 ea 1 Part No Part name Q ty Installation plate 1 Wireless remote control 1 Battery 2 Remote control holder 1 Part No Part name Q ty Zeolite plus filter 1 Plasma pure filter 1 Mounting screw Ø4 25L 6 Remote control holder moun...

Page 61: ...pump adapter Gas leakage detector Changes As pressure is high it is impossible to measure by means of conven tional gauge In order to prevent any other refrigerant from being charged each port diameter has been changed In order to increase pressure resisting strength hose materials and port size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the p...

Page 62: ...to direct sunlight or close to a heating source such as a stove Keep the remote controller at least 1 m away from the nearest TV set or stereo equipment This is necessary to prevent image disturbances or noise interference The location of the remote controller should be determined as shown below Fig 10 3 1 10 3 2 Drilling a Hole and Mounting Instal lation Plate Drilling a hole When install the ref...

Page 63: ... use of the air conditioner NOTE Wire type More than H07RN F or 245IEC66 1 0mm CAUTION This appliance can be connected to a main circuit breaker in either of the following two ways 1 Connection to fixed wiring A switch or circuit breaker which discon nects all poles and has a contact separa tion of at least 3 mm must be incorporated in the fixed wiring An approved circuit breaker or switch must be...

Page 64: ...e 70 mm 10 mm 10 mm 50 mm Fig 10 3 10 1 Die cutting front panel slit Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or side of thefront panel for the bottom left or right connection with a pair of nippers 2 Changing drain hose For left connection left bottom connection and rear left connection s piping it is necessary ...

Page 65: ...they are posi tioned within 43 mm above the wall surface If the connecting pipes are positioned more than 43 mm above the wall surface the indoor unit may be unstable When bending the connecting pipe make sure to use a spring bender to avoid crushing the pipe Refer to the table below for the bending radius of each connection pipe Fig 10 3 17 NOTE If the pipe is incorrectly bent the indoor unit may...

Page 66: ...s firmly hooked on the installation plate Installation plate Indoor unit Connecting cable Auxiliary pipes 10 3 7 Drainage 1 Run the drain hose at a downward sloped angle NOTE Hole should be made at a slight downward slant on the outdoor side Fig 10 3 21 2 Put water in the drain pan and make sure that the water is being drained outside 3 When connecting extension drain hose insulate the connection ...

Page 67: ...at pump Cooling only Outdoor unit RAS M14GAV E RAS M18GAV E RAS M14GACV E RAS M18GACV E Indoor unit RAS B10GKVP E RAS B13GKVP E RAS M10GKV E RAS M13GKV E RAS M10GDV E RAS M13GDV E RAS B10GKVP E RAS B13GKVP E RAS B16GKVP E RAS M10GKV E RAS M13GKV E RAS M16GKV E RAS M10GDV E RAS M13GDV E RAS M16GDV E RAS M10GKCVP E RAS M13GKCVP E RAS M10GKCV E RAS M13GKCV E RAS M10GDCV E RAS M13GDCV E RAS M10GKCVP E...

Page 68: ...ngth A or B 2 m or more Maximum indoor piping length A or B 20 m or less Maximum piping height difference A or B 10 m or less Maximum piping height difference between two rooms 10 m or less If the outdoor unit is to be mounted on a wall make sure the platform supporting it is sturdy enough The platform should be designed and manufactured to maintain its strength over a long period of time and suff...

Page 69: ... generated such as from audio equipment welders and medical equipment Base plate 9 Drain nipple 10 Water proof rubber caps supplied with the outdoor unit 10 5 2 Draining the Water Holes are provided on the base plate of the outdoor unit to ensure that the defrost water produced during heating operations is drained off efficiently If a centralized drain is required when installing the unit on a bal...

Page 70: ... Tightening torque for connection of flare pipe The pressure of R410A is higher than R22 Approx 1 6 times Therefore securely tighten the flare pipes which connect the outdoor unit and the indoor unit with the specified tightening torque using a torque wrench If any flare pipe is incorrectly connected it may cause not only a gas leakage but also trouble in the refrigeration cycle Fig 10 5 9 Half un...

Page 71: ...ound pressure gauge reading is 101 kPa 76 cmHg 5 Close the low pressure valve handle of gauge manifold 6 Open fully the valve stem of the packed valves both sides of Gas and Liquid 7 Remove the charging hose from the service port 8 Securely tighten the caps on the packed valves 9 Perform steps 1 through 8 above on each con nected indoor unit CAUTION IMPORTANT POINTS FOR PIPING WORK 1 Keep dust and...

Page 72: ...ble Power cord CAUTION Incorrect wiring connection may cause electrical parts to burn out Be sure to comply with local regulations codes when running the wire from outdoor unit to indoor unit Size of wire and wiring method etc Every wire must be securely connected If incorrect or incomplete wiring is carried out fire or smoke may result Prepare the power supply for the exclusive use of the air con...

Page 73: ...t breaker of a type that is not tripped by shock waves Incorrect incomplete wiring will cause electri cal fires or smoke Prepare the power source for exclusive use with the air conditioner Proceed as follows when connecting the product to the mains power Connection to fixed wiring A switch or circuit breaker which discon nects all poles and has a contact separa tion of at least 3 mm must be incorp...

Page 74: ...irst unit This can be prevented by setting one of the indoor units and the corresponding remote controller to the B setting the A setting is the default setting 1 Setting the selector switch on the main unit Remove the front panel and then set the selector switch to B After making the switch setting remount the front panel 2 Setting the remote controller 1 Slide open the remote controller cover an...

Page 75: ...iate collection facility as specified by your mu nicipality Fig 10 9 1 D09 D10 D11 D12 D13 LED Red Contents Normal running IGBT short circuit Compressor motor rear short Trouble on position detecting circuit Trouble on current detecting circuit Condensor pipe temp sensor TE fault Suction pipe temp sensor TS fault Discharge pipe temp sensor TD fault Trouble on outdoor fan Outdoor temp sensor TO fau...

Page 76: ...nt Discrete Vector control K The control circuitry has an uninsulated construction Fig 11 1 No 1 2 3 4 5 6 Troubleshooting Procedure First Confirmation Primary Judgment Judgment by Flashing LED of Indoor Unit Self Diagnosis by Remote Controller Judgment of Trouble by Every Symptom Check Code 1C and 1E Page 78 79 79 80 83 88 No 7 8 9 10 11 Troubleshooting Procedure Trouble Diagnosis by Outdoor LED ...

Page 77: ... in damage to the components Sensor leads Do NOT lay the circuit board assembly flat K Precautions when inspecting the control section of the outdoor unit NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280 to 380V remains and dis charging takes a lot of time After turning off the pow...

Page 78: ...In AUTO mode the operation mode is changed In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the temperature arrives at the set temperature Cool Dry or Heat operation cannot be performed Description The OPERATION indicator of the indoor unit flashes when power source is turned on If START STOP button is operated once flashing stops Flashes also ...

Page 79: ...hen air conditioner operates 2 When item B and C and item B and a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing OPERATION Green Flashing display 1 Hz OPERATION Green TIMER Yellow FILTER Orange Flashing display 5 Hz OPERATION Green FILTER Orange Flashing display 5 Hz OPERATION Green TIMER Yellow F...

Page 80: ...e mode is indicated on the display of the remote controller Press ON or OFF button If there is no fault with a code the indoor unit will beep once Beep and the display of the remote controller will change as follows The TIMER indicator of the indoor unit flashes continuously 5 times per 1 sec Check the unit with all 52 check codes to as shown in Table 11 4 1 Press ON or OFF button to change the ch...

Page 81: ...eration started 1 Defective wiring of connecting cable 2 Operation of compressor thermo Gas shortage Gas leak Air conditioner status Operation continues Operation continues All off Operation continues Operation continues Remarks Displayed when error is detected Displayed when error is detected Displayed when error is detected Displayed when error is detected Flashes when trouble is detected on Ret...

Page 82: ...urn serial signal and normal status when signal is reset Displayed when error is detected Displayed when error is detected Displayed when error is detected Judgment and action Even if trying operation again all operations stop immediately Replace P C board 1 Even if connecting lead wire of compressor is removed position detect circuit error occurred Replace P C board 2 Measure resistance between w...

Page 83: ...controller Is voltage DC12V or 5V indicated on rear of indoor control board normal Does transmission mark on remote controller flash normally and is its signal transmitted properly Is DC310 340V supplied between CN10 1 3 Does fan motor connector between CN10 1 3 short circuit Item by symptoms Operation Check Item Considerable principle cause Measures Parts R04 R05 DB01 C01 C03 IC01 and T01 are def...

Page 84: ... detect DC 1V or more between 5 and 3 of motor connector CN10 Is it possible to detect DC 1V or more between 5 and 3 of motor connector CN10 Is it possible to detect DC 310 340V between 1 and 3 of motor connector CN10 Motor connection condition Is it possible to detect DC 15V between 4 and 3 of motor connector CN10 Is it possible to detect DC 15V between 4 and 3 of motor connector CN10 Is it possi...

Page 85: ...ace motor 4 Indoor fan motor automatically starts to rotate by turning on power supply Cause The IC is built in the indoor fan motor Therefore the P C board is also mounted to inside of the motor If the P C board is soldered imperfectly or the IC is defective the fan motor may automatically rotate by turning on power supply Inspection procedure 1 Remove the front panel Remove 2 screws 2 Remove the...

Page 86: ... Batteries are exhausted Does radio sound is affected by remote controller when a signal is transmitted at distance of 5 cm from radio Is transmission mark indicated P C board is defective Replace P C board Replace batteries Replace remote controller Normal operation Remote controller is defective NO YES NO YES NO YES NO YES NO YES NO YES NO YES Does indoor unit start to operate by automatic resta...

Page 87: ...rm that transmission from indoor unit to outdoor unit is correctly performed based upon the following diagram NOTE Measurement should be performed 2 minutes and 30 seconds after starting of the operation Be sure to prepare a diode for judgment 2 If the unit stops once it does not operate until the power will be turned on again 3 The outdoor unit stops 10 minutes to 1 hour after operation started a...

Page 88: ... low Valve drive check Replace cables in A B rooms of outdoor terminal block Are temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors which are used to control pulse motor valve include indoor heat exchanger sensor TC A room gas side temp sensor TGa B room gas side temp sensor TGb and outdoor suction temp sensor TS Gas amount check and valve clogging check ...

Page 89: ...ning IGBT short circuit Compressor motor rear short Trouble on position detecting circuit Trouble on current detecting circuit Condensor pipe temp sensor TE fault Suction pipe temp sensor TS fault Discharge pipe temp sensor TD fault Trouble on outdoor fan Outdoor temp sensor TO fault Trouble on compressor system Gas side pipe temp sensor a TGa fault Gas side pipe temp sensor b TGb fault TGa TGb se...

Page 90: ...board MCC5020 Micro switch is stuck Micro switch malfunction To item Power supply is not turned on Replace the main P C board MCC5020 Replace micro switch Does the PURE indicator go off within 2 seconds after it was ON and does the FILTER indicator Orange go on Are the electric dust collector and ionizer dried Electrode check Dry the electric dust collector and ionizer Is DC 5V to DC 10V applied b...

Page 91: ...there conduction of micro switch connector under OFF status of the micro switch Front panel opened Is there conduction of micro switch connector under ON status of the micro switch Front panel closed Does the indoor fan rotate Does the PURE indicator Blue or the FILTER indicator Orange go on Is DC12V applied between Red DC12V and Brown GND of CN1 of the high voltage generator in the air purifier M...

Page 92: ...which connects inverter and compressor Check whether 25A fuse on the control board assembly is blown or not F01 Turn on the power breaker and operate the air condi tioner in COOL mode by time shortening Measure terminal voltage of the electrolytic capacity 760μF 400WV 3 After operation turn off the power breaker after 2 minutes 20 seconds passed and discharge the electrolytic capacitor by solderin...

Page 93: ...V Indoor fan motor control circuit CPU and peripheral circuits buzzer and Driving circuit of louver b Indication unit of infrared ray receiving infrared ray receiving circuit LED To check defect of the P C board follow the procedure described below NG OK B A Replace control board assembly Replace control board Replace compressor Check compressor winding resistance Diagnosis Process flowchart Item ...

Page 94: ...15 60V Check whether or not all indicators OPERATION TIMER FILTER PURE are lit for 3 seconds and they return to normal 3 seconds later 1 Check whether or not the compressor operates 2 Check whether or not the OPERATION indicator flashes 1 Check whether or not the compressor operates 2 Check whether or not the OPERATION indicator flashes 1 Check it is impossible to detect the voltage DC 15V between...

Page 95: ... value kΩ Temperature C TD Discharge temp sensor TA Room temp sensor TC Heat exchanger temp sensor TO Outdoor temp sensor TE Outdoor heat exchanger temp sensor TS Suction temp sensor TGa A room Gas side temp sensor TGb B room Gas side temp sensor TA TC TO Tga TGb TE TS TD 1 Sensor characteristic table ...

Page 96: ...normal temp 25 C Position 1 to 2 1 to 3 1 to 4 1 to 5 Resistance value 380 40 Ω Refer to 11 5 1 3 and 4 No 1 2 3 4 Part name Compressor Model DA111A1F 20F Compressor Model DA130A1F 25F Outdoor fan motor Model ICF 140 43 4R Compressor thermo bimetal type Model US 622KXTMQO SS Checking procedure Measure the resistance value of each winding by using the tester Position Red White White Black Black Red...

Page 97: ...easure the resistance value of winding by using the tester Position Red White White Orange Blown Yelloow Blown Blue Resistance value 42 to 50 kΩ Under 20 C No 1 2 Part name Electrolytic capacitor For boost smoothing Diode block Checking procedure 1 Turn OFF the power supply breaker 2 Discharge all three capacitors completely 3 Check that safety valve at the bottom of capacitor is not broken 4 Chec...

Page 98: ...e inside of the outdoor fan motor 4 Motor drive circuit failure of the outdoor P C board 3 How to simply judge whether outdoor fan motor is good or bad NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor If the resistance value between...

Page 99: ...ay ignite any oil mixed with the refrigerant gas 2 Do not use welding equipment in an airtight room Carbon monoxide poisoning may result if the room is not properly ventilated 3 Do not bring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the circu...

Page 100: ... screws 2 pcs 6 Press the electric parts box with the right thumb while pulling the both sides of the front panel toward you How to assemble the front panel 1 Press three center positions and two lower center positions of the air outlet and then hang the hanging hooks 4 pcs at the top side of the front panel to the rear plate 2 Insert the electric dust collector and left and right air filters Pres...

Page 101: ... into the other components Caution do not remove the Faston 4 Disconnect the connectors of the high voltage generator and disconnect the four leads from where they are fitted into the other components 5 Remove the fixing screw which secures the high voltage generator and remove the high voltage generator from the evaporator How to assemble the high voltage generator 1 Insert the high voltage gener...

Page 102: ...bly 4 Pull out TC sensor from sensor holder of the evaporator 5 Disengage the two claws at the top of the display unit They can be easily disengaged by pressing the drain pan above the claws and at the same time pulling the display unit toward you 6 Remove the fixing screw that secures the electric parts box assembly and remove the assembly How to assemble the electric parts box 1 Hook the top par...

Page 103: ...ver from the back body First remove the left shaft and then remove other shafts while sliding the horizontal louver leftward 1 Follow to the procedure in the item 3 2 Remove the pipe holder from the rear side of the main unit 3 Remove two fixing screws at the left side of the end plate of the heat exchanger 4 Remove the heat exchanger fixing holder by removing the two fixing screws used to secure ...

Page 104: ...used to secure the left edge panel of the heat exchanger and remove the two screws used to secure the bearing base 3 Raise the left side of the heat exchanger slightly and remove the bearing base Caution at assembling If the bearing is out from the housing push it into the specified position and then incorporate it in the main body After assembling the bearing base check that it is fitted into the...

Page 105: ...n assembling work install the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that the fan motor leads will be taken out is positioned at the bottom front After assembling the two hooking claws of the motor band right into the main body position the fan motor insert it and then secure the motor band right using the two fixing screws 1 Follow to the ...

Page 106: ... fan so that the right end of the 1st joint from the right of the cross flow fan is set keeping 70 5 mm from wall of rear plate of the main unit Holding the set screw install the cross flow fan so that U groove of the fan motor comes to the mounting hole of the set screw Perform positioning of the fan motor as follows When assembling the fan motor the fan motor must be installed in such a way that...

Page 107: ... IC01 T01 C03 DB01 No 1 Part name Common procedure Procedure 1 Turn the power supply off to stop the operation of air conditioner 2 Remove the front panel Remove the 2 fixing screws 3 Remove the electrical part base Remarks Replace terminal block microcomputer ass y and the P C board ass y ...

Page 108: ...Ø4 8L 2 pcs and then remove connecting cable 4 Remove the upper cabinet ST1TØ4 8L 5 pcs After removing screws remove the upper cabinet pulling it upward 2 Attachment 1 Attach the water proof cover NOTE The water proof cover must be attached without fail in order to prevent rain water etc from entering inside the indoor unit 2 Attach the upper cabinet ST1TØ4 8L 5 pcs 3 Perform cabling of connecting...

Page 109: ...4 8L 2 pcs used to secure the motor base The front cabinet is fitted into the side cabinet left at the front left side so pull up the top of the front cabinet to remove it 2 Attachment 1 Insert the claw on the front left side into the side cabinet left 2 Hook the bottom part of the front right side onto the concave section of the bottom plate Insert the claw of the side cabinet right into the squa...

Page 110: ...rd Be careful to discharge the capacitor because the electrolytic capacitor cannot naturally discharge and voltage remains according to trouble type in some cases NOTE This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting between polarity with screwdriver etc for discharging 4 Remove screw ST1TØ4 8L 2 pcs fixing the main body and the in...

Page 111: ...ion CN13 Lead for AC power supply NOTE These connectors have a disconnect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the P C board base Remove the heat sink and control board assembly while keeping them screwed together NOTE Disengage the four claws of the P C board base hold the heat sink and lift t...

Page 112: ...g screw ST1TØ4 8L 1 pcs used to secure the side cabinet left onto the heat exchanger 3 Remove the fixing screw ST1TØ4 8L 2 pc used for securing the side cabinet to the bottom plate and heat exchanger 1 Perform work of item 1 of 1 and 2 2 Remove the flange nut fixing the fan motor and the propeller Flange nut is loosened by turning clockwise To tighten the flange nut turn counterclockwise 3 Remove ...

Page 113: ...ipe connected to the compres sor with a burner Take care to keep the 4 way valve away from naked flames Otherwise it may malfunction 7 Remove the fixing screw of the bottom plate and heat exchanger ST1TØ4 8L 1 pc 8 Remove the fixing screw of the bottom plate and valve fixing plate ST1TØ4 8L 1 pc 9 Pull upward the refrigeration cycle 10 Remove BOLT 3 pcs fixing the com pressor to the bottom plate P...

Page 114: ...removing the coil from the valve body use your hand to secure the body in order to prevent the pipe from being bent out of shape 1 Detachment 1 Perform work of item 1 of 2 2 Remove the front cabinet and put it down so that fan guard side directs downward Perform work on a corrugated cardboard cloth etc to prevent flaw to the product 3 Remove the hooking claws by pushing minus screwdriver according...

Page 115: ...and install the holder onto the heat exchanger TGa TGb sensor Gas side pipe temperature sensor Attachment With its leads pointing downward point the sensor in the direction of the front cabinet and install the sensor onto the straight pipe part of gas side pipe Match the sensor protective tube colors with the pipe marking colors and install the sensors TGa is yellow and TGb is red CAUTION During t...

Page 116: ...de and recycle that connector 6 Tear the lead wire in two on the connec tor side and strip the covering part 7 Twist the leads on the connector and sensor sides and solder them 8 Move the thermal constringent tubes toward the soldered parts and heat them with the dryer and constring them 9 Wind the attached color tape round the both terminals of the protective tube when colored protective tube is ...

Page 117: ... 117 Outdoor unit Main P C board MCC 5009 ...

Page 118: ... 118 Outdoor unit Sub P C board MCC 5015 03 ...

Page 119: ... 213 43039321 Base Bearing 214 43020346 Fan Cross Flow 215 43039314 Band Motor 216 43020253 Bearing 217 4301V028 Holder Pipe 218 43049701 Pipe Shield 1 219 43049698 Pipe Shield 2 221 43047671 Pipe Outlet 2 222 43047672 Pipe Outlet 1 223 43049674 Spring Suction 1 Location Part No Description No 224 43047673 Pipe Inlet 225 43044803 Evaporator 2 226 43044804 Evaporator 1 227 43039324 Guide Drain 228 ...

Page 120: ... Part No Description No 401 4306A123 Terminal Block 2P 402 43062263 Cover E Parts 403 43050425 Sensor TC F6 404 43050426 Sensor TA 405 4306S728 P C Board Ass y WRS LED 406 43051346 SW Micro Ass y Location Part No Description No 407 4306S709 P C Board Ass y B10GKVP E M10GKCVP E 408 4306S710 P C Board Ass y B13GKVP E M13GKCVP E 409 4306S711 P C Board Ass y B16GKVP E M16GKCVP E 410 43067115 Clamp Cor...

Page 121: ...1 28 39 Revised on Mar 2010 NOTE For the packed valve covers we have changed their material from plastic to metal from those which were produced in December of 2009 In the case of that Q is attached at the side of the model name on the nameplate and the packed valve cover is made by metal use the parts with Location No 50 and 51 No 8 cannot be used for No 51 51 50 made by metal Nameplate ...

Page 122: ...46848 Valve P M V CAM B22YGTF 3 26 37546849 Coil P M V CAM MD12TF 6 Location Part No Description No 27 43058277 Reactor 28 4302C068 Motor Fan ICF 140 43 4R 29 43020329 Fan Propeller PJ421 30 43047669 Nut Flange 31 43039392 Base Motor 32 43004233 Plate Partition 33 4301V063 Plate Fix Valve Packed 34 43032441 Nipple Drain M14GAV E M18GAV E 35 43089160 Cap Waterproof M14GAV E M18GAV E 36 4301P703 Mar...

Page 123: ...iring and replacing Location Part No Description No 701 43050422 Sensor Heat Pump 702 43050423 Sensor TS 703 43050427 Sensor TO 704 43050431 Sensor TGa Heat Pump 705 43050432 Sensor TGb Heat Pump 706 43050428 Sensor TGa Cooling Only 707 43050429 Sensor TGb Cooling Only Location Part No Description No 708 43050430 Sensor TD 709 43062228 Base P C board 710 4306A130 Terminal Block 9P 711 4306S735 P C...

Page 124: ...ing URL http www nagasawa el co jp On self responsibility you can use a product manufactured by other company if its characteristics are equivalent to those of NAGASAWA Electric Co Use heat resistance weatherproof and non hydrolytic type Material 4 fluorinated ethylene copolymer Harness diameter Ø5 9 Use equivalence with the above specifications 11 pieces are used to fix the cord heater to the out...

Page 125: ...for securing the wires Material 6 6 nylon Remarks Procured locally Procured locally Drawing attached Procured locally Procured locally Procured locally No 1 2 3 4 5 6 7 8 9 10 Part name Plus screwdriver Wrench Motor drill Faston crimping tool Close end connector crimping tool Cutting plier Stripper Cutter knife Insulation tape Metal cutting shears Specifications Drill diameter Ø3 2 and Ø5 0 Fixing...

Page 126: ...wer and connect it to its exclusive breaker By doing so the power consumption can be decreased because the breaker can be turned off if there is no possibility of freezing of the base plate in cooling operation etc When the cord heater power is connected to the inverter P C board assembly or others without connected to the exclusive breaker the control P C board of the inverter assembly may cause ...

Page 127: ...pe Quantity Ø4 8 5 Ø4 1 1 Remove the front cabinet the wiring cover and the water proof cover Related parts Screws list Part name Front cabinet Wiring cover Used screw Screw type Quantity Ø4 8 7 Ø4 8 2 Remove the side cabinet R L and the inverter assembly Related parts Screws list Part name Side cabinet R Side cabinet L Inverter assembly Used screw Screw type Quantity Ø4 8 7 Ø4 8 3 Ø4 8 1 Remove t...

Page 128: ...ate assembly Including reactor Used screw Screw type Quantity Ø4 8 2 Ø4 8 3 Remove the fixing screws of the heat exchanger and the valve fixing plate Remove the compressor fixing bolt Related parts Screws list Part name Heat exchanger Valve fixing plate Compressor Used screw Screw type Quantity Ø4 8 1 Ø4 8 1 Bolt 3 As shown in the left figure remove the set of refrigeration cycle assembly from the...

Page 129: ...e fixing screws used to secure the anchoring feet As shown in the left figure install the cord heater 1 5m to the outdoor unit base plate by using P shape clamp and screws Self tapping screw type B Ø4 6mm stainless Pay attention to the direction of P shape clamp so that it is set to the same direction in the left figure If the drain port is frozen due to installation status etc draw around the cor...

Page 130: ...d bundling of each cable Using fixing screws Self tapping screw type B Ø3 5 6mm fix the thermostat to the thermostat fixing plate Perform end process for various lead cables and connect them according to the wiring diagram Attach 250 Faston and UL approved sleeves each to the end of lead cables which are connected to the thermostat Using insulation tape apply protective measures to the connected p...

Page 131: ...from one for power cord of the air conditioner Procedure Return a set of the refrigeration cycle assembly into the outdoor unit base plate and assemble sound insulation board partition plate assembly fan motor assembly and side cabinet R L as original Using screws Self tapping screw type B Ø4 8mm stainless fix the thermostat fixing plate to the side cabinet R After incorporating the inverter assem...

Page 132: ...Appendix 9 Appendix 28 24 5 5 11 11 18 45 18 37 56 36 46 11 11 8 5 8 3 Ø3 4 burring hole Downward 2 Ø3 4 burring hole Upward 5 Drawing of thermostat fixing plate Material SGCC Z08 Thickness 0 8t ...

Page 133: ...Appendix Appendix 10 6 Diagram showing positions Ø3 2 mm holes to be additionally drilled in base plate ...

Page 134: ...N 23 17 TAKANAWA 3 CHOME MINATOKU TOKYO 108 8580 JAPAN Copyright 1999 to 2009 TOSHIBA CARRIER CORPORATION ALL Rights Reserved This product is compliant with Directive 2002 95 EC and cannot be disposed as unsorted municipal waste ...