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Service Manual - GT Phelan Tech

1. y 100 ji 800mm 300mm Fig 9 3 9 27 9 4 Air Ducting Work 9 4 1 Static Pressure Characteristics of Each Model external static pressure Air volume limi 5 Min 430m hr Fig 9 4 1 RAS M10GDCV E RAS M10GDV E Fig 9 4 3 RAS M16GDCV E RAS M16GDV E 80 8 Sio 2 70 gt 70 m 60 Upper limit of 6 60 limit of 6 external static ssure a a B External static pressure A Cx External static pressure Pa External static pressure mmAq External static pressure mmAq 30 3 30 3 20 1 S 2 20 Lower limit of 2 ower limit o external static external static m pressure i i pressure i 10 Low tap77 i 1 1 Air volume limit 0 volume limit 7 p 0 0 0 1 1 1 i 0 200 300 400 500 600 700 800 900 200 300 400 500 600 700 800 900 Air volume m hr Air volume m hr Fig 9 4 2 RAS M13GDCV E RAS M13GDV E
2. Connecting pipe Thickness 0 8mm 912 7 RC Connecting pipe Thickness 0 8mm 26 35 Allowable height difference 2 Allowable pipe length 2 Sectional shape of heat insulator OUTDOOR UNIT NOTE m Gas leak check position gt Refrigerant flow Cooling Refrigerant flow Heating 1 Heat pump model only 2 The allowable pipe length charge amount of refrigerant and allowable height difference differ according to the outdoor unit to be combined For details refer to the service manual of the outdoor unit to be combined 11 7 CONTROL BLOCK DIAGRAM 7 1 Indoor Unit Indoor Unit P C Board MMC 875 i M C U Functions Heat Exchanger Sensor Temperature Sensor Infrared Rays Signal Receiver Infrared Motor Revolution Control Drain Pump Control 9 minutes Delay at Restart for Compressor Glock Erequency Temperature Processing i Oscillator Circuit Timer gt Serial Signal Communication i Power Supply nin Remote i Circuit Drain Pump ON OFF Signal i Controller Option Serial Signal Transmitter Receiver Sol PET ee ew NE From Outdoor Unit Serial Signal Communication Remote controller RAS M10GDV E M13GDV E M16GDV E RAS M10GDCV E M13GDCV E M16GDCV E Heat Pump Model Cooling Only Mode
3. Fig 10 1 1 Terminal cover CD Drain up kit body l O 2 Insulated pipe Oo M i eit 8 Mounting screw e Fig 10 1 2 Convex part f Insulated pipe Fig 10 1 3 Short pin connector 2P blue Drain pump connector 3P red Float switch connector 2P blue Fig 10 1 4 1 Unfasten a set screw on the side of the indoor unit Hook the drain hose holder to the screw and fasten it together with the fitting Make sure the drain hose is free from a trap sag etc near the drain hose holder 2 The joint for the drain hose port packaged with the indoor unit should be connected with the insulated 3 Insert the pipe snugly into the drain hose port of the drain up kit as deep into the port as the O ring of the drain hose reaches the groove of the drain hose port 4 Using two setscrews 3 secure the drain up kit D to the indoor unit 5 Remove a set screw and Terminal cover And remove two set screws on E cover 7 Remove the short pin connector 2P blue CNO7 in E box 8 The float switch connector 2P blue CNO7 and the drain pump connector 3P red CN06 E box should be connected with the others on the board and near the filter appropriately 9 Put each leads from the drain up kit in the upper holder of E box as indicated in the figure 10 Fix E box E cover and Terminal cover by each screws appropriately as it
4. 80 8 M10GDCV E M13GDCV E M16GDCV E Modes Ram M10GDV E M13GDV E M16GDV E 70 7 Air volume BU i i i capacity E i Upper limit of raat oint Static a external static High tap 6 lt ressure pressure E Air volume limit z 5 50 50 Air 3 2 410m hr i Max air volume amp wm static 5 E 5 T i a Air 30 al 3 9 volume capacity ul Lower limit of point Static 20 external static i 2 pressure pressure i i Air 10 Air volume limit Min air volume volume Max 780 Static 0 pressure 200 300 400 500 600 700 800 900 Unit for static pressure mmAq Air volume m hr Unit for air volume m3 hr 28 9 4 2 Installation Reference The air supply ducting work is classified into two ways one is branched by the square ducts and the other is branched by the round ducts Be sure to divide the air supply duct into three or more branches Square duct Round duct Fig 9 4 4 Fig 9 4 5 In case of using the square duct apply the thermal In case of using the round duct use the thermal insulator of thickness by 25mm or more to the duct insulator of thickness by 25mm or more and inner board For the thermal insulator use high density diameter by 150mm or more to the duct board If the glas
5. Fig 8 4 1 Drain level is checked by float switch If the float switch is actuated OPEN stop operation of the outdoor unit and operate the drain pump exert to drain out In fan only heating operation Heat pump model only and even in stoppage but while float switch is actuated drain pump is ON Operation OVERFLOW CHECK AND CONTROL Operation starts at overflowing Operation starts Overflow detection durling operation Overflow detection Overflow stops Drain pump ON ON ON o 290 Float switch OPEN CLOSE OPEN CLOSE Compressor OFF ON OFF i 2 230 ON Indoor fan ON ON Compressor stops Drain pump continues operation 1 If the float switch is not reset closed within 2 minutes 30 seconds the operation lamp flashes 5Hz 2 When the float switch is reset the following phenomena appear The operation lamp stops flashing and keeps lighting The outdoor unit is reactivated 2 minutes and 30 seconds after Fig 8 4 2 19 8 5 Auto Restart Function This unit is equipped with an Automatic restarting function which allows the unit to restart and resume the set operating conditions in the event of a supply power shutdown without the use of the remote controller The operation will resume without warning three minutes after the power is restored INFORMATION The AUTO RESTART FUNCTION is not set to work on ship ment from the factory and so i
6. 1 Stop Starting of FAN Manual NOTES 1 Stops for 2 minutes after thermostat OFF 2 24 when the set temp is 24 or more Set temp when the set temp is below 24 3 SUL Super ultra low Fig 8 2 5 Cold draft preventing control The outdoor unit controls the outdoor fan based upon the operation signal sent from the indoor unit and also controls revolution speed of the compressor motor The power coupler for 4 way valve is turned on and turned off in defrost operation 1 Heating capacity control Calculate the difference between temperature detected by room temp sensor every minute and the set temp set on Temp indicator and varia tion amount of room temp Then obtain the correction amount of the com mand signal and correct the current frequency command signal 2 High temp release control If temperature of the indoor heat exchanger detected by the indoor heat exchanger sensor is 58 or higher compressor motor speed is gradually lowered to prevent over temp rising of compressed pressure If temperature becomes below 51 C return to above item 1 17 Y 3 Defrost control 1 Detection of frost In heating operation time duration while the compressor operates is counted and defrost operation starts by any condition described below a The counted time is 28 minutes or more and status that temperature of the outdoor heat exchanger detected by the outdoor heat
7. 15 118 211 Fig 9 3 3 1 Hanging down of indoor unit Refer to installation figures of hanging material Hanging bolt F1 Nut with flange or washer and nut and hanging bolt Adjustment of hanging bolt length and nut position Adjust hanging bolt length and nut position as shown in the figure below before hanging down the indoor unit Square washer 15 to 20 2010 2 Ty Hexagonal nut Fig 9 3 4 NOTE Be sure to set the indoor unit horizontally so as not to cause malfunction of the float switch Option or leakage of water Considering pipe wire connecting work inside the ceiling after the indoor unit has been hanged select an installa tion place and determine piping direction If the ceiling has been already set lead refrigerant pipe drain pipe connecting wire switch panel cord etc up to the place where pipe and wire are connected before hanging the main unit 26 Concealed duct type 200mm diam round duct Indoor unit Ledge ceiling concealed duct type 200mm diam round duct Returning Fig 9 3 7 NOTE Opening area of the return grille should be larger than one of the return port of the indoor unit 9 3 2 Restriction to Installation 1 Installation space As shown in the figure keep space around the indoor unit Inner ceiling 10mm or more e
8. A B change indication remote controller Push the CHK point and MODE button at once for changing remote controller setting from A to Priority is given to A setting The switch panel of the indoor unit is also changed to setting n the illustration all indications are indicated for explanation During operation only the relevant indications will be indicated on the remote controller Fig 8 6 2 22 9 INSTALLATION PROCEDURE 9 1 Accessory Parts and Parts to be Procured Locally 9 1 1 Accessory Parts Part name Wireless remote controller Elbow thermal insulating cover Part name Remote controller holder Batteries Manganese Mounting screws for remote controller holder 3 5mm diam x 16mm Black screws for switch panel 4mm diam x 10mm Drain hose Tapping screws for flange 2 type 4mm diam x 8mm Installation Manual 9 1 2 Parts to be Procured Locally Connecting pipe Liquid side 6 35mm diam Nominal diam 1 4 thick 0 8mm Owner s Manual Connecting cable HO7RN F or 2451EC66 1 0mm Connecting pipe Gas side 12 7mm diam Nominal diam 1 2 thick 0 8mm RAS M16GDOV E RAS M16GDV E 9 52mm diam Nominal diam 3 8 thick 0 8mm RAS M10GDCV E RAS M10GDV E RAS M13GDCV E RAS M13GDV E Thermal insulation for refrigerant pipe 10mm or more thermal insulating foam polyethyle
9. Case Up Fan Case Down Motor Fan AC Bushing Fan Multiblade Pan Ass y Drain Location No 43044801 43044802 43097217 43060643 43089132 4306A131 43063329 43070189 43019904 4308N733 Description Refrigeration Cycle Ass y M10GDCV E M13GDCV E M10GDV E M13GDV E Refrigeration Cycle Ass y M16GDCV E M16GDV E Screw Clamp Cord Cover Terminal Insulator Connector Ass y FM Holder Remote controller Hose Drain Holder Sensor Manual 13 1 Indoor Unit 2 407 408 417 418 419 02 420 421 422 LT ac ec 403 The parts in the following parts list are conformed to RoHS Therefore be sure to use the following parts for repairing and replacing Location No Location me No Description Description 43050426 Sensor TA 43055528 Capacitor Alumifilm 43050425 Sensor TC F6 1 5MFD 450V ene M10GDV E M10GDCV E 43058278 Transfomer Power TT 03 3 M13GDV E M13GDCV E 43063342 Clamp Cord c NE NM 4306S706 PC Board Ass y M10GDV E SESS Wet NUR 43065707 PC Board Ass y M13GDV E star ert NUBE ETE 43065708 PC Board Ass y M16GDV E 4306A132 Terminal Block p 43065703 P C Board Ass y 43055527 Capacitor Alumifilm M10GDCV E 3 0MFD 450V NU g 43068704 P C Board Ass y M16GDV E M16GDCV E M13GDCV E 43063705 P C Board Ass y M16GDCV E 13 2 Drain u
10. Height 200 mm x Width 170 75 5 mm x Depth 90 mm 10 1 2 Outline Drawing Indoor unit Drain up kit im Be careful Drain hose port 4 Y Drain tube port with the gap O D 219 245 5 V P20 O D 226 Indoor unit 170 52 5 48 7 200 70 166 X EA NOTE That the drain up kit affixed to the indoor unit is 24 5 mm lower than the bottom of the indoor unit 38 10 1 3 Parts List 24 x 101 es Drain up kit body Insulated pipe Mounting screw Drain pipe Hose band manual Drain hose holder 1 1 2 1 2 1 1 10 1 4 Installation Drawing Keep the following in mind Follow steps described in this instructions to install correctively the drain up kit otherwise water leak may occur Make sure that the air conditioner is placed level or slopes down toward the drain port by 5mm or less Make sure that the drain hose slopes down toward the drain up kit mi n NO GOOD 10 1 5 Installation Steps 7 Drain hose holder Drain hose port E Drain hose meum O ring
11. Indoor Unit check for disconnection burning or discolora tion of the copper foil pattern or this P C board 1 Operating precautions 2 The PC board consists of the following 2 parts 1 When removing the electric parts box or the a Main P C board part board be sure to shut off the power DC power supply circuit 5V 12V Indoor supply breaker fan motor control circuit CPU and periph 2 When removing the P C board hold the edge eral circuits buzzer of the P C board and do not apply force to the b Indication unit of infrared ray receiving parts Infrared ray receiving circuit LED 3 When connecting or disconnecting the con To check defect of the P C board follow the nectors on the P C board hold the whole housing Do not pull at the lead wire 3 Check procedures Table 11 6 1 Procedure Check point Symptom Shut off the power supply and 1 Is the fuse F01 blown remove the P C board assembly from the electronic parts base Remove the connecting cable from the terminal block procedure described below Causes Application of shock voltage Overload by short circuit of the parts Turn the power on Voltage check If the OPERATION lamp flashes 1 Between Pin1 and Pin 3 of 0 5 sec ON 0 5 sec OFF AC 220 240V when the power turning on the 2 Between and of C02 checking points described as 1 DC 12 to 17V 3 of right column are not necessary to perform
12. M16GDCV E Cooling Only Model Indoor unit model name Cooling capacity RAS M10GDCV E RAS M13GDCV E RAS M16GDCV E 2 7 3 7 4 5 Cooling capacity range 1 1 1 Power supply 220 240 V 1 Ph 50 Hz 220 V 1 Ph 60 Hz Operation current 0 59 Electric characteristics 2 Power consumption 110 Power factor 81 Blower Multi blade blower Blower motor output 60 Blower speed 5 Low Low Med Med High Blower unit Air flow Cooling High 3 m8 h 780 External static pressure Upper limit 63 7 6 5 mmAq External static pressure Standard 41 2 4 2 mmAq Cooling high 32 Sound level 4 Cooling Medium 28 Cooling Low 24 Height 230 Dimension Width 750 Depth 440 Net weight 19 Connecting type Full Operation Liquid side 06 35 Connecting pipe Gas side 09 52 Refrigerant R410A Wiring connection Interconnection 4 wires includes earth Usable temperature range 21 32 Wireless remote controller 1 Remote controller holder 1 Mounting screws 2 93 5 x 16 L Drain hose 1 Elbow thermal insulation cover Accessory 1 Batteries Manganese Black screws Tapping screws Owner s manual Installation manual 1 Refer to the service manual of the out
13. exchanger is 20 or lower contin ued for 3 minutes or more b The counted time is 28 minutes or more and status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is 8 or lower and temperature lowered by 2 5 C than the minimum value of the outdoor heat ex changer during 10 to 15 minutes count time continued for 3 minutes or more c The counted time is 34 minutes or more and status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is 5 C or lower and temperature lowered by 3 0 C than the minimum value of the outdoor heat ex changer during 10 to 15 minutes count time continued for 3 minutes or more d The counted time is 4 hours or more and status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is 0 or lower and temperature lowered by 1 0 C than the minimum value of the outdoor heat exchanger during 10 to 15 minutes count time continued for 3 minutes or more e If the following three conditions are satis fied defrost operation Timer defrost starts after heating operation for 48 minutes D Setting on remote controller HEAT mode HIGH Fan 30 C temp Room temp is 19 C to 24 and outside air temp is 5 or lower Defrost operation has been already performed once Defrost operation Operation of the compressor is stopped once turn off power coupler for
14. side When connecting extension drain hose insulate the connecting part of extension drain hose with shield pipe 9 5 3 Connection of the Drain Hose Insert the drain hose completely into the connecting port of the drain pan Apply thermal insulation surely to the drain hose with elbow thermal insulation cover 1 5mto 2m Support Ue d 3 bracket Thermal 1 100 or more insulator downward grading Te x Trap Fig 9 5 1 As shown in the figure set the collective piping such as the ceiling duct so that waste water does not back up from the main pipe Do not put the drain hose end into water or drainage ditch Fig 9 5 2 Shield pipe local parts Drain hose Inside the room N Extension drain hose Larger as possible Approx 100mm Insert the hose completely up to the end tt Drain hose Elbow thermal Be sure to apply insulation cover thermal insulation Fig 9 5 5 32 20 20 20 eA LN Extended ventilating pipe 25 or more Downward grading 1 100 or more Fig 9 5 4 Drain kit Option For drain up kit installation Refer the installation manual supplied with the drain up kit 9 6 Refrigerant Piping 9 6 1 Refrigerant Piping 1 If the outdoor units are to be mounted on a wall make sure that the platform supporting is suffi ciently strong The platform should be design
15. specified positions with attached to the product Do not damage or scratch the conductive core and inner insulator of power and inter connect ing cables when peeling them Be sure to comply with local cords on running the wire from outdoor unit to indoor unit size of wire and wiring method etc Use the power cord and Inter connecting cable with specified thickness specified type and protective devices specified How to wire 1 Connect the connecting cable to the terminal as identified with their respective matched numbers on the terminal block of indoor and outdoor unit H07 RN F or 245 IEC 66 1 0 mm 2 When connecting the connecting cable to the outdoor unit terminal prevent water coming in the outdoor unit 3 Insulate the unused cords conductors stripped the sheath of connecting cable with PVC tape Process them so that they do not touch any electrical or metal parts to another on the way For inter unit wiring do not use a cut wire jointed Cabling 1 As shown in the figure remove a screw and then remove cover of the terminal block Remove two screws and pull the parts box while lifting up it Strip wire ends 10 mm Match wire colors with terminal numbers on indoor and outdoor units terminal blocks and firmly screw wires to the corresponding terminals Connect the ground wires to the corresponding terminals Fix the cable with cord clamp Fix the par
16. the indoor heat exchanger If temperature is 6 or higher return the operation to the above item 1 3 Limit for maximum compressor motor speed by indoor fan speed When outdoor temperature sensor detected 32 or lower and indoor heat exchanger sensor detected 15 or lower the maximum compres sor motor speed is limited by the indoor fan speed 8 2 3 DRY Operation The Remote controller MODE Button is Set to the DRY Position Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing START STOP button Dry operation signal is transmitted to outdoor unit The Cooling operation giving priority to dehumidify ing which restrains the indoor fan speed and compressor motor speed is performed The indoor fan motor operates as shown in Fig 8 2 3 Fan speed is AUTO only The outdoor unit controls the outdoor fan relay and the compressor motor speed according to the operation command signal sent from the indoor unit Room temp Set temp NOTE 1 Middle motor speed between L and UL Fig 8 2 3 Setting of air flow 1 Dehumidifying preferential Cooling capac ity control The cooling capacity and room temperature are controlled by changing the compressor motor speed according to both the difference between the temperature detected by the room tempera ture sensor and the temperature set by T
17. to 2 0 Flaring size A Unit mm Outer diam of copper pipe In the case of flaring for R410A with the conventional flare tool pull out it E approx 0 5 mm more than that for R22 to adjust to the specified flare size The copper pipe gauge is useful for adjusting projection margin size Fig 9 6 2 Tightening connection Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers Then tighten the nut with a spanner and torque wrench as shown in the figure CAUTION Do not apply excess torque Otherwise the nut may crack depending on the conditions Unit Nem 6 35 mm diam 14 to 18 1 4 to 1 8 kgf m 9 52 mm diam 33 to 42 3 3 to 4 2 12 7 mm diam 50 to 62 5 0 to 6 2 kgf m Tightening torque of flare pipe connections Pressure of R410A becomes higher than that of R22 Approx 1 6 times Therefore using a torque wrench tighten firmly the flare pipe connecting sections which connect the indoor and outdoor indoor M units up to the specified tightening torque Incorrect connections may cause not only a gas leakage but also a trouble of the refrigeration cycle Flare at outdoor unit side Fig 9 6 3 Half union 7 Flare nut Externally Internally threaded side threaded side Use a wrench to secure Use a torque wrench to tighten Fig 9 6 4 33 9 7 Ev
18. was before 40 6 Remove two set screws fixed E bix at the terminal side So remove E cover while moving E box up Connection of Drain Tube 1 Fit the coupling pipe at both ends with a hose band 2 Fit one end of the provided coupling pipe over the discharge port of the drain up kit Insert PVC tube VP 20 into the other end of the coupling pipe Secure the connected pipe and the tube with a hose band Insert 35 mm or more xl m Discharge port 5 Hose band 4 Coupling pipe Fig 10 1 5 Drain up kit 3 Make sure that the coupling pipe is tightened 8 10 mm using the hose band 4 Wrap the VP 20 drain tubing in the insulation material 5 Wind the coupling pipe in the provided insulation covering with its joint facing upward Using the hose band tighten the insula tion covering until there is no clearance left Use the hard PVC tube VP 20 for the drain tubing Apply a PVC based adhesive to joints to prevent water from getting out Apply the insulation material 10 mm or thicker wall of formed polyethylene to the drain tubing arranged indoor Secure a section of the drain tubing near to the drain up kit so that no unnecessary force is applied to the drain tubing Tightening allowance for hose band 8 10 mm VP 20 PCV tube of inner dia 20mm Insulation 1 100 gr
19. which come to contact with high humidity atmosphere 240 j or more 17 9 2 3 Advice A Drain up kit Arrange the check panel at the suitable place for piping Option maintenance and servicing Recommend check panel size 450 x 450mm or and Fig 9 2 1 more bigger size depending on the maintenance staffs 24 9 3 Installation of Indoor Unit A WARNING Install the air conditioner certainly at a place to sufficiently withstand the weight If the strength is insufficient the unit may fall down resulting in human injury Perform a specified installation work to guard against an earthquake An incomplete installation can cause accidents by the units falling and dropping Return air methed is choiced from rear or under direction as shown in figure Return air from rear side Return air from below side Fig 9 3 1 f a system to suck in air directly from the bottom of the unit is adopted the noise level increases It is recommended to mount the return duct so that air is not directly sucked in 9 3 1 Installation Procedure 1 Lay drain pipes refrigerant pipes and connecting cables under wall or ceiling concurrently with supply drain water work and piping work 6 Mount the switch panel and set switches 7 Install supply return air panels 2 Install the mounting frames of supply return air panels 8 Mount thermal insulation 3 Positioning of refrigerant and drain pipes 9 Mount check panel 4 I
20. 3 Between 12V and GND 4 Between 5 V and GND Miss wiring of crossover cable Poor contact of the terminal plate Transformer TT 03 is defective Chip fuse F02 is defective Q01 002 F02 DBO1 are defective F02 Q02 Q03 ICO2 are defective Make the operation status by Voltage check pusing once the START STOP 1 Voltage of relay coil DC12V OV button except the status of FAN ONLY ON TIMER Between 10 of IC06 GND 2 Between No 1 and 2 of connecting cable terminal block AC 220 240V Breaking wire of the relay coil defective relay driver ICO6 Start the operation with the All indicators light for 3 sec system which the time of the Indicators do not indicate normally restart delay timer is shortened after approximate 3 sec housing assembly Defective indicator or poor CNO5 CN11 Make the operation status by Compressor does not operate eee once the START STOP OPERATION lamp flashes utton 1 The time of the restart delay timer is shortened 2 Cool operation 3 Air volume AUTO 4 Make the setting tempera ture lower enough than room temperature 5 Continuous operation The temperature of the indoor heat exchanger is abnormally low Poor contact of the heat ex changer sensor The connector is disconnected CN12 Heat exchanger sensor room
21. 4 way valve after 10 seconds and then exchange the 4 way valve After 20 seconds restart operation of the compressor Turn off the outdoor fan just when the compressor stopped If temperature of the indoor heat exchanger is lower than settimg temperature stop the indoor fan 3 Defrost reset Resetting operation from defrost to heating is performed when any one of the following conditions is satisfied a Temperature of the outdoor heat exchanger rose to 8 C or higher b Astatus that temperature of the outdoor heat exchanger is 5 or higher continued for 80 seconds c Defrost operation continued for 10 minutes In resetting defrost operation the compressor stops for 50 seconds if defrost has started under condition a to d in item 1 but the compressor is reset to heating operation keeping operated if defrost has started under condition e in item 1 8 2 5 Auto Operation 1 Selection of operation mode As shown in Fig 8 2 6 the operation starts by selecting automatically the status of the room temperature Ta when starting AUTO operation Ts Setting temperature by remote controller Ta Cool operation Ts 1 Minitoring Fan only Ts 1 Heating operation Heat pump model Fan only operation Cooling only model 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode Fig 8 2 6 2 Mode selection is done again if the cpmpressor turns off for 15
22. Black White 100 200 Between D Red White 174 35 52 12 HOW REPLACE THE MAIN PARTS WARNING When handling the electric parts be sure to turn off the power supply breaker because high voltage is electrified If failing to pull out the power supply plug or to turn off the breaker an electric shock may be caused After repairs carry out a trial operation and check there is no trouble such as smoke or abnor mal sound Otherwise a fire or electric shock may be caused Cautions on repairs for refrigeration cycle 1 Be careful to fire near by If using a gas stove etc be sure to turn off the switch If failing to do so the oil mixed with refrigerant gas may catch fire 2 Do not use a welding machine in the closed room If ventilation is failed poisoning of carbon monoxide may be caused 3 Do not lay flammables The fire of the welding machine may catch the flammables 12 1 Indoor Unit Part name Procedure Remaks Fan motor 1 Remove 8 fixing screws O4 x 8L Multi of the suction cover blade fan 2 Remove two motor lead wires from connector of the fan motor 3 Remove TA sensor lead from P shape clamp 4 Remove 8 fixing screws 4 x 101 of the suction cover 5 Remove 4 fixing screws FT screw of the motor cover WARNING When removing the four fixing screws of the motor cover the fan and fan motor come down simultaneously Be sure to depo
23. EMP button and also any change in room tempera ture When the air conditioner operates in Dry mode the maximum compressor motor speed is restricted While multiple indoor units operate compressor motor speed is calculated in the outdoor unit to operate When room temperature is lower than set temperature indoor fan motor is operated at fan speed UL as shown in Fig 8 2 3 while the outdoor unit stops Other controls than the above mentioned controls are common to those of Cooling operation 8 2 4 Heating Operation Heat pump model only Transferring of heating operation signal from indoor unit to outdoor unit starts The indoor fan motor operates by the room tempera ture when selecting AUTO of FAN as shown in Fig 8 2 4 and operates with a set air flow when selecting Low to High However to prevent cold draft revolution speed of the fan is restricted by indoor heat exchanger tem perature when air flow is AUTO Fig 8 2 5 and starting of FAN Manual Basic control Set 0 LOW temp 0 5 1 1 7 S ET 5 M 23 5 0 5 5 FAN AUTO HIGH NOTE 1 2 Approximate revolution speed of M and L to linear according to temperature Fig 8 2 4 Setting of air flow 16 Cold draft preventing control The upper limit of fan revolution speed is shown below TC Approximate revolution speed of HIGH and SUL linear by Tc SUL NOTE
24. GACV E M18GACV E 2 File No List of Reference Service Manual Outdoor Units of Multi Air Conditioner Outdoor unit Reference Service Manual 4M27GAV E File No A05 011 Heat Pump Model 3M26GAV E File No A05 011 RAS M14GAV E File No A05 009 M18GAV E File No A05 009 4M27GACV E File No A05 011 Cooling Only Model 3M23GACV E File No A05 014 RAS M14GACV E File No A05 009 M18GACV E File No A05 009 3 For the details of the specifications of each 4 Optional Parts List indoor outdoor unit to be combined refer to the next page and after pages with the above service manuals Drain up kit RB F81E2 RAS M10GDV E RAS M13GDV E RAS M16GDV E Heat Pump Model Indoor unit model name Cooling capacity RAS M10GDV E RAS M13GDV E RAS M16GDV E 2 7 3 7 4 5 Cooling capacity range 1 1 1 Heating capacity 4 0 5 0 5 5 Heating capacity range 1 1 1 Power supply 220 240 V 1 Ph 50 Hz 220 V 1 Ph 60 Hz Operation current 0 59 Electric characteristics 2 Power consumption 110 Power factor 81 Blower Multi blade blower Blower motor output 60 Blower speed 5 Low Med High Air flow Cooling High 3 780 Blower unit Air flow Heating High 3 780 External static pressure Upper limit 63 7 6 5 mmAq External static pressu
25. Nem 3 3 to 4 2 kgf m Gas side 9 52 mm diam 14 to 18 Nem 1 4 to 1 8 kgf m Liquid side 6 35 mm diam 14 to 18 Nem Service port 1 4 to 1 8 kgf m Hexagonal wrench is required Fig 9 7 1 Compound pressure gauge Pressure gauge 101kPa 76cmHg Q Handle Lo Keep full closed Charge hose Charge hose Vacuum pump adapter for counter flow prevention Packed valve at liquid side Service port Valve core Setting pin Packed valve at gas side Fig 9 7 2 34 9 8 Electrical Work For the air conditioner that has no power cord NOTE For selection and connection method of the power supply cords refer to the details in the Installation Manual of the outdoor unit CAUTIONS Use a circuit breaker of a type that is not tripped by shock waves If incorrect incomplete wiring is carried out it will cause an electrical fire or smoke Prepare the power supply for exclusive use with the air conditioner This product can be connected to the mains Connection to fixed wiring A switch or circuit breaker which disconnects all poles and has a contact separation of at least 3 mm must be incorporate in the fixed wiring An approved short circuit breaker or switches must be used A breaker having a sensitivity of approxi mately 0 1 second or less and a capacity of approximately 30 mA is usually used Be sure to use the cord clamps
26. OL side the cooling operation can be confirmed even while the thermostat is OFF when temperature of the return air is low Q Auto Restart switch The Auto Restart switch is useful for restarting the system when the outside power supply is un stable by an instantaneous power failure etc Do not use this switch when the unit itself is in trouble Using VOLTAGE1 and VOLTAGE2 switches select an appropriate voltage according to supplied voltage Voltage 220V 230V or 240V can be selected REMOCON priority select switch When the indoor units are nearly set set both indoor unit and remote controller to A or B for selecting the priority Remote controller sensor The remote controller sensor can receive a signal at position approx 7m off Operation lamp This lamp goes on during operation and goes off during stop time respectively 46 9 9 Connection of Electric Wires When you connect the wires to the terminals be sure to loosen the parts box before work If an incomplete connection is done a contact failure may be caused and resulted in a danger of an electric shock and so on Correct way 9 10 Voltage Setting Ce irs cue EM Work under condition that the parts box is fixed Incorrect way indoor unit Flat view aN The most suitable voltage can be set up by combining the VOLTAGE SELECT 1 with 2 when adjusting the voltage on the spo
27. TOSHIBA FILE NO A05 010 SERVICE MANUAL AIR CONDITIONER SPLIT TYPE Heat Pump Model Cooling Only Model RAS M10GDV E RAS M10GDCV E RAS M13GDV E RAS M13GDCV E RAS M16GDV E RAS M16GDCV E HFC O Po oe oe e 11 12 13 CONTENTS PRECAUTIONS FOR SAFETY eese nnne nnns 3 SPECIFICATIONS PT 5 CONSTRUCTION VIEWS 05 dns cec cuE Ea 8 WIRING DIAGRAM minio ian nuca ria mna ms var nd su du ao daa m Ca aat nn 9 SPECIFICATIONS OF ELECTRICAL PARTS 10 REFRIGERANT CYCLE DIAGRAM eene 11 CONTROL BLOCK DIAGRAM eene nnne nnn 12 OPERATION DESCRIPTION 13 INSTALLATION PROCEDURE 2 23222 san ag a EYCu ga F Fa dd du aaa RUE 23 DRAIN UP KIT Rui sn pac Co cevasseusvaveswactaune 38 HOW TO DIAGNOSE THE TROUBLE 42 HOW TO REPLACE THE MAIN 53 EXPLODED VIEWS AND PARTS LIST 55 1 PRECAUTIONS FOR SAFETY For general public use Power supply cord of Outdoor unit shall be more than 2 5mm HO7RN F or 245 IEC66 polychloroprene sheathed flexible cord Read this Precautions f
28. acuating Packed valve handling precautions Open the valve stem all the way out do not try to AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump Do not use the refrigerant in the outdoor unit For details see the manual of vacuum pump open it beyond the stopper Securely tighten the valve stem cap in torque as follows 50 to 62 Nem 5 0 to 6 2 kgf m Gas side 12 7 mm diam Use a vacuum pump Be sure to use a vacuum pump with counter flow prevention function so that inside oil of the pump does not flow backward into pipes of the air condi tioner when the pump stops 1 Connect the charge hose from the manifold valve to the service port of the gas side packed valve Connect the charge hose to the port of vacuum pump Open fully the low pressure side handle of the gauge manifold valve Perform evacuating for about 35 minutes if the piping length is total 70 meters 25 minutes for total 50 meters assuming a pump capacity of 27 liters per minute Then confirm that the compound pressure gauge reading is 101 kPa 76 cmHg Close the low pressure side valve handle of gauge manifold Open fully the valve stem of the packed valves both sides of Gas and Liquid 7 Remove the charging hose from the service port Securely tighten the caps on the packed valves Operate the vacuum pump to start for evacuating 33 to 42
29. ade or steeper material downwar d slope of VP 20 No trap allowable Fig 10 1 6 Finally allow the water from the heat exchanger to flow through the installed drain tube to make sure there is no problem with the drain system Keep the following in mind The drain tubing should have a downward slope 1 100 or steeper toward the outlet There may be no up and down or other intervening trap for the flowing water The length of the drain tubing arranged horizontally must not exceed 15 meters The drain tubing must not have an upward slope from the outlet of Drain up kit The end of the drain tube must not be immersed in water or located 50 mm or more above the ground End of drain tube immersed in water 50 mm or less clearance relative to the ground Greatest possible gap approx 100 mm NO Ew my DA Draining trench 41 z 1 100 or steeper VP 25 downward slope 11 HOW DIAGNOSE THE TROUBLE 11 1 3 Operation Which is not a Trouble Program Operation 11 1 First Confirmation 11 1 1 Confirmation of Power Supply For controlling the air conditioner the program operations are built in the microcomputer as de scribed in the following table If a claim is made for running operation check whether or not it meets to the contents in the following table When it does we
30. computer so that the same operation can be effected thereafter simply by pushing START STOP button A cooling operation signal is transmitted to outdoor unit The indoor fan motor operates as shown in Fig 8 2 2 when FAN button is set to AUTO The motor operates with a constant air flow when the FAN button is set manually The outdoor unit controls the outdoor fan and the compressor motor speed according to the opera tion command signal sent from the indoor unit Room temp Set temp NOTE 1 Calculated from the difference in the motor speed of M and L Fig 8 2 2 Setting of air flow Air Flow AUTO 1 Cooling capacity control The cooling capacity and room temperature are controlled by changing the compressor motor speed according to both the difference between the temperature detected by the room tempera ture sensor and the temperature set by TEMP button and also any change in room tempera ture When compressor has been activated or reactivated compressor motor speed goes up with restricting the maximum speed gradually from operation start When room temperature is lower than set temperature indoor fan motor is operated at fan speed L as shown in Fig 8 2 2 while the outdoor unit stops 45 2 Prevent freezing control If temperature of indoor heat exchanger detected by the indoor heat exchanger sensor is 4 or lower compressor motor speed is gradually lowered to prevent freezing of
31. door unit to be combined 2 Electrical characteristics at High fan speed under standard static pressure 3 Airflow volume at standard static pressure 4 Sound levels at standard static pressure are measured under the conditions specified by JIS B 8616 Notes For performance when each indoor unit combined with other unit refer to the service manual of outdoor unit The specification may be subject to change without notice for purpose of improvement 3 CONSTRUCTION VIEWS i 650 Inside flange i 5 D c cod Ng o Drain up kit RB F81E2 Drain piping connecting port Accessory sold separately Nominal 220 Vinyl chloride pipe 31 Duct connecting flange n Require at site MB 230 Ee 156 5 7 730 Hanging bolt pitch z 211 118 D ing fl i i uct connecting flange Refrigerant pipe connecting port Require at site 750 Liquid side 26 35 640 Inside flange Gas side D 216 2 Inside flange 4 WIRING DIAGRAM TRANSFORMER 1 d 220 240V 50Hz a 220V 60 INFRARED RAYS 90 EE 2 RECEIVING 313 EARTH INDICATING PARTS KA IUE Quer CONNECTION Pe
32. e indoor unit remove both attached cap by finger of CHECK and TIMER lamps TIMER Lamp Yellow Fig 11 3 1 Switch panel 43 11 4 Self Diagnosis by Remote Controller Check Code 1 The self diagnosis by the check code is performed while items B to E blocks are displayed 2 When turning the operation mode on the remote controller to the service mode and operating the remote controller the controller of the indoor unit can self diagnose operation of the protection circuit by displayed contents check code on the remote controller by whether all the lamps flash 5Hz and the receiving sound Beep Beep Beep for 10 seconds is heard The timer lamp usually flashes BHz during self diagnosis 11 4 1 Self Diagnosis 1 Wireless remote controller O O e RESET CLOCK CHECK Alphanumeric characters are used for the check codes 0 155 is A isC B is 6 h is B d is D Push the CHK button by something with thin edge e Check i is displayed in the indication part of the remote controller Push toward the indoor unit one by one If itis normal the receiving sound is heard every pushing it and check code in the indication part of the remote controller changes gm dem EE The timer lamp of the air conditioner flashes 5 times for 1 second e Check all of 35 check codes 27 to 22 Push to return to the objecti
33. e operation mode is changed After selecting Cool or Heat mode select an operation mode again if the compressor keeps stop status for 15 minutes In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the temperature arrives at the set tempera ture For Heat pump model only The compressor motor speed may decrease by high temp release control Release protective operation by temp up of the indoor heat exchanger or current release control Cool Dry or Heat operation cannot be performed For Heat pump model only When the selected operation mode in the room differs from one in the other room the priority is given to the operation mode in the room where the operation has started previously In this time the indoor fan in the room where the operation mode was not given with priority stops Cool operation and Dry operation can be concur rently performed 11 2 Primary Judgment To diagnose the troubles use the following methods 1 Judgment by flashing LED of indoor unit switch panel 2 Self diagnosis by service check remote controller 3 Judgment of trouble by every symptom Firstly use the method 1 for diagnosis Then use the method 2 or 3 to diagnose the details of troubles 42 11 3 Judgment by Flashing LED of Indoor Unit Switch Panel While the indoor unit monitors the operation status of the air conditioner if the protective c
34. e such as falling of water drop 4 Thermal insulation of screwing sections is necessary Avoid dewing by applying thermal insulation to 6 screws which fix the duct flange of the air supply cham ber For duct parts the flexible branch duct thermal insulation 25mm or more thickness is recommended Adjust the duct length to 6m or less even for straight pipe and avoid sudden bending Part resistance is large if bending Return air flange Supply air flange 18 Fig 9 4 13 31 9 5 Drain Piping Work 9 5 1 Piping Material For laying pipes under ground use hard vinyl chloride pipe Inner diam 20 or 25mm 9 5 2 Piping and Cautions Set drain side of pipe at downward slope 1 100 or more Be sure to apply thermal insulation foaming polyethyl ene 10mm thickness or more for pipes passing through the room Adhere the connecting sections with vinyl chloride agent surely so that no water leakage is caused Support the piping with hanging bracket so that force is not applied to connection sections of pipe and pipe is not waved with connected pipes NOTES Do not make slack or trap at halfway of pipes Set pipes so that the end of drain pipe is not dipped in water and also keep space with 50mm or more to the ground After piping work check water drains smoothly Hole should be made at a slight downward slant to the outdoor
35. ect YES Infrared rays receive parts or P C board failure Power transformer is failure Is AC12V supplied to the secondary bottom side of the power transformer Is the voltage display on the bottom side of the P C board normal DC12V or DC5V YES Microcomputer is failure DC12V DC5V power supply circuit failure Check items Probable main causes omm Item by symptons Normal Remote controller is failure Replace the remote controller Connect the wire properly Match A B select setting of the switch with setting on the remote controller Replace infrared rays receive parts or the P C board Replace the transformer Replace the P C board DBO01 C02 Q01 Q02 Q03 002 IC02 F02 47 Replace the P C board 2 Power is not turned on though Indoor P C board is replaced Confirmation procedure Turn on power supply Does operation lamp flash NO Is wired correctly to white and black lead wires of terminal block YES To item of Power is not turned on 3 Only the indoor fan does not operate Preliminary check 1 Is the socket voltage 220 240V 2 Does not the indoor fan rotate in cooling operation In heating operation the indoor fan does not rotate to p
36. ection short circuit or migration of heat exchanger sensor TC sensor Operation continues Displayed when error is detected Check heat exchanger sensor When heat exchanger sensor is normal check P C board Lock of indoor fan or trouble on the indoor fan circuit All off Displayed when error is detected Check P C board When board is normal check the motor 1 LI Only when drain up kit option is connected Float SW operation Operation continues Outdoor units stop Displayed when error is detected Check the drainage 1 Amount of residual drain 2 Drain water piping installation situation 2 Float SW operation check Check disconnection of connector Trouble on other indoor P C boards Operation continues Displayed when error is detected Replace P C board Connecting cable and serial signal Return serial signal is not sent to indoor side from operation started 1 Defective wiring of connecting cable 2 Operation of compressor thermo Gas shortage Gas leak Operation continues 45 Flashes when trouble is detected on return serial signal and normal status when signal is reset When the outdoor unit never operate 1 Check connecting cable and correct if defective wiring 2 Inverter check To display Other block during operation check compressor therm
37. ed and manufactured to maintain its strength over a long period of time and sufficient consideration should be given to ensuring that the outdoor unit will not fall 2 Use copper pipe with 0 8 mm or more thick ness 3 Flare nut and flare works are also different from those of the conventional refrigerant Take out the flare nut attached to the main unit of the air conditioner and use it CAUTION IMPORTANT 4 POINTS FOR PIPING WORK Take away dust and moisture from the inside of the connecting pipes Tight connection between pipes and unit Evacuate the air in the connecting pipes using VACUUM PUMP Check the gas leakage connected points Flaring Insert a flare nut into the pipe and flare the pipe As the flaring sizes of R410A differ from those of refrigerant R22 the flare tools newly manufactured for R410A are recommended However the conventional tools can be used by adjusting projection margin of the copper pipe B Fig 9 6 1 Projection margin in flaring B Unit mm Rigid Clutch type R410A tool used Conventional tool used Outer diam of copper pipe R22 R410A R22 Same as left 1 0 1 5 0 5 to 1 0 Same as left 1 0to 1 5 0 5 to 1 0 Same as left 1 0 1 5 0 5 to 1 0 Imperial Wing nut type Outer diam of copper pipe 1 5 to 2 0 1 0 to 1 5 1 5 to 2 0 1 0 to 1 5 2 0 to 2 5 1 5
38. elect fan speed When you 14 Automatic operation button AUTO select AUTO the fan speed is automatically adjusted according to the room temperature Push this button to operate the air conditioner automatically A receiving beep is heard You can also manually select the desired fan Refer to AUTOMATIC OPERATION speed among five settings LOW 2 LOW MED MED will HIGH till A receiving beep is heard Off timer button OFF Push this button to set the OFF timer AAUTOA O xt y AM timer button ON Lip ts ES AR Push this button to set the ON timer J IJ l OFF NOD O Reserve button SET 3 CHK Push this button to reserve time settings A receiving beep is heard 12 Cancel button CLR 1 2 Push this button to cancel ON timer and OFF timer A receiving beep is heard 4 14 High power button Hi POWER 11 9 Push this button to start the high power opera TIMER tion D 10 When pushing the SWING FIX and FILTER buttons indoor unit does not operate and the receiving beep sound also not appear ue NU Fig 8 6 1 21 8 6 2 Names and Functions of Indications on Remote Controller Display All indications except for clock time indication are indicated by pushing the START STOP button 1 2 Transmission mark This transmission mark
39. g Should the unit be used in these places special protective measures are needed Place exposed to oil vapor oil smoke or corrosive gas Place where organic solvent is used nearby Place close to a machine generating high frequency Place where the discharged air blows directly into the window of the neighboring house For outdoor unit Place where noise of the outdoor unit is easy to transmit When installing the air conditioner on the boundary with the neighbor pay due attention to the level of noise Place with poor ventilation Before air ducting work check whether value of air volume static pressure and duct resistance are correct 9 2 1 Installation Space 9 2 2 Selection of Installation Place Secure the space required to installation and In case of continues the operation of the indoor unit servicing under high humidity conditions as described below dew may condense and water may drop Especially high humidity atmosphere dew point tem perature 23 or more may generate inside of the 100 or more 300 or more ceiling Z 1 Unit is installed inside of the ceiling with slated roof b 2 Unitis installed at a location using inside of the ceiling as fresh air take in path Ly P 3 Kitchen E If installing a unit at such place adhere insulating S material glass wool etc additionally over all the positions of the indoor unit
40. g any of the safety guards or by by passing any of the safety interlock switches Exposure of unit to water or other moisture before servicing may cause a short circuit Do not store it in a wet basement or expose to rain or water After unpacking the unit examine it carefully for possible damage Do not install in a place that can increase the vibration of the unit To avoid personal injury be careful when handling parts with sharp edges Perform installation work properly according to the Installation Manual Inappropriate installation may result in water leakage electric shock or fire When installing the air conditioner in a small room provide appropriate measures to ensure that the concentration of refrigerant in the room does not exceed the critical level should leakage occur It is not dangerous refrigerant it has not toxicity or combustibility However a concentration above 0 3kg m as criterion still causes suffocation The volume of refrigerant charged to the Multi System air conditioner is more than the volume charged to a conventional individual system Install the air conditioner securely in a location where the weight of the unit can be sustained adequately Perform the specified installation work to guard against an earthquake If the air conditioner is not installed appropriately accidents may occur due to the falling unit If refrigerant gas has leaked during the servicing work ventilate the room immediately If the
41. iming to exchange inverter output voltage and the power supply to the winding Detection of the revolution position for controlling is performed 12 times per 1 revolution of compressor The range of supply power frequency to the com pressor differs according to the operation status 8 1 2 Current Release Control The outdoor main circuit control section Inverter assembly detects the input current to the outdoor unit If the current value with compressor motor speed instructed from indoor side exceeds the specified value the outdoor main circuit control section controls compressor motor speed by reduc ing motor speed so that value becomes closest to the command within the limited value 8 1 3 Indoor Fan Control AC Fan Motor The indoor fan is operated by motor speed non step variable AC phase control drive system For airflow rate motor speed is controlled manually in five steps LOW LOW MED MED HIGH or automatically adjusted in AUTO mode according to the room temperature It is not selected by relay so the switching noise will not be heard Table 8 1 1 shows the fan speed This indoor unit performs the phase output constant control of the fan motor Does not control the revolution speed Since the fan speed varies according to the external static pressure the values described in the table can be used to confirm the motor functions However the maximum revolution speed is limited to 1300rpm for
42. indicates when the remote controller transmits signals to the indoor unit Mode display Indicates the current operation mode AUTO Automatic control A Auto changeover control Cool 9 Heat Fan only Temperature display Indicates the temperature setting 17 C to 30 C When you set the operating mode to amp Fan only no temperature setting is indicated FAN speed display Indicates the selected fan speed AUTO or one of five fan speed levels LOW a LOW a MED ad MED HIGH aail can be indicated Indicates AUTO when the operating mode is either AUTO or Dry or amp ECO TIMER and clock time display The time set for timer operation or clock time is indicated The present time is always indicated except for TIMER operation 3 1 29 7 AM 1I 1 PM 11 171 HiPOWER CHK 2106 6 7 High power display Indicates when the High power operation starts Push the Hi POWER button to start and push it again to stop the operation Q MEMORY display Flashes for 3 seconds when the MEMO button is pushed during operation Q mark is indicated when the button is not pushed for more than 3 seconds while the mark is flashing Push another button to turn off the mark ECOTIMER display Indicates when the ECO TIMER is in operation Each time you push the ECO button the display changes in the sequence of 1 3 5 or 9h
43. inform you that it is not trouble of equipment but it is indispensable for controlling and maintaining of air conditioner Confirm that the power breaker operates ON normally 11 1 2 Confirmation of Power Voltage Confirm that power voltage is AC 220 240V 10 50Hz AC 220V 10 60Hz If power voltage is not in this range the unit may not operate normally Table 11 1 1 Operation of air conditioner When power breaker is turned ON the operation lamp Green of the indoor unit switch panel flashes Description The OPERATION lamp of the indoor unit switch panel flashes when power source is turned on If START STOP button is operated once flashing stops Flashes also in power failure Compressor may not operate even if the room temperature is within range of compressor ON The compressor does not operate while compressor restart delay timer 3 minutes timer operates The same phenomenon is found after power source has been turned on because 3 minutes timer operates In DRY and ECONO mode FAN ONLY air flow display does not change even though FAN air flow select button is operated The air flow indication is fixed to AUTO The set value of the remote controller should be below the room temperature If the set value is above the room temperature Cooling operation is not performed And check whether battery of the remote controller is consumed or not In AUTO mode th
44. ircuit operates the contents of self diagnosis are displayed with block on the indoor unit indication section Table 11 3 1 Check code Block display Description for self diagnosis Indoor indication lamp flashes OPERATION Green Flashing display 1 Hz Power failure when power is ON Which lamp OPERATION Green does flash Flashing display 5 Hz Protective circuit operation for indoor P C board OPERATION Green TIMER Yellow Flashing display 5 Hz _ _ Protective circuit operation for connecting cable and serial signal system OPERATION Green CHECK Red Protective circuit operation for outdoor P C board Flashing display 5 Hz 4 _ OPERATION Green TIMER Yellow Protective circuit operation for others CHECK Red including compressor Flashing display 5 Hz NOTES 1 The contents of items B and C and a part of item E are displayed when air conditioner operates 2 When item B and C and item B and a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing 4 For judgment and measures of the outdoor units refer to the service manual of the outdoor unit to be combined TEMPORARY AUTO RESTART COOL AUTO OFF ON e L W VOLTAGE1 220v 230V 240v VOLTAGE2 REMOCON 220V Illlesov 8 NOTE To check th
45. it of discharge temp sensor Displayed when error is detected 1 Check discharge temp sensor TD 2 Check PC board Outdoor fan drive system All off error Displayed when error is detected Position detect error over current protective operation of outdoor fan drive system fan lock etc Replace board or fan motor Not dis played Outdoor temp sensor error Operation continues 1 Check outdoor temp sensor TO 2 Check PC board Outdoor P C board Compressor drive output off error Compressor error lock missing etc Break down Displayed when error is detected Check 5 serial LED 1 When 20 seconds passed after start up position detect circuit error occurred Replace compressor Error exclusive for multiple off type Displayed when error is detected Check 5 serial LED 1 1 Miswiring of connecting wire of A B C D rooms in indoor outdoor units 2 Check gas leakage 3 Check disconnection of sensor 4 Electronic control valve error Others including compressor Compressor does not off rotate Current protective circuit does not operate when a specified time passed after compressor had been activated Displayed when error is detected Trouble on compressor Trouble on wiring of compressor Missed phase Discharge temp exceeded All off 120 Displayed when error is detected Check dischage te
46. l Infrared Infrared Rays Rays Wireless Remote Controller Wireless Remote Controller Operation START STOP AUTO COOL DRY FAM ONLY 1 Operation Mode Selection AUTO COOL DRY HEAT Thermo Setting Fan Speed Selection ON TIMER Setting ON TIMER Setting OFF TIMER Setting ECO SLEEP Hi POWER Va OFF TIMER Setting ECO SLEEP Hi POWER 12 8 OPERATION DESCRIPTION 8 1 Outline of Air Conditioner Control This air conditioner is a capacity variable type air conditioner which uses AC motor for the indoor fan motor and DC motor for the outdoor fan motor And the capacity proportional control compressor which can change the motor speed in the range around from 20 to 100 rps is mounted The AC motor drive circuit is mounted to the indoor unit The compres sor and the inverter to control outdoor fan motor are mounted to the outdoor unit The entire air condi tioner is mainly controlled by the indoor unit control ler The indoor unit controller drives the indoor fan motor based upon command sent from the remote control ler and transfers the operation command to the outdoor unit controller The outdoor unit controller receives operation command from the indoor unit side and controls the outdoor fan and the pulse modulating valve PMV Besides detecting revolution position of the com pressor motor the outdoor u
47. leaked refrigerant gas comes in contact with fire noxious gas may generate After the installation work confirm that refrigerant gas does not leak If refrigerant gas leaks into the room and flows near a fire source such as a cooking range noxious gas may generate The electrical work must be performed by a qualified electrician in accordance with the Instal lation 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 wires to gas pipes water pipes lightning rods or ground wires for telephone cables Conform to the regulations of the local electric company when wiring the power supply Inappropriate grounding may cause electric shock Do not install the air conditioner in a location subject to a risk of exposure to combustible gas Otherwise the combustible gas may leak and a fire may occur 2 SPECIFICATIONS 1 Combination List of Indoor Outdoor Units Possible X Impossible Indoor unit Heat Pump Model RAS Cooling Only Model RAS Outdoor unit M10GDV E M13GDV E M16GDV E M10GDCV E M13GDCV E M16GDCV E 4M27GAV E Heat Pump Model 3M26GAV E RAS M14GAV E M18GAV E 4M27GACV E Cooling Only Model 3M23GACV E RAS M14
48. minutes continuesly due to the room temperature 8 2 6 ECO Timer Operation When you push the ECO button during cooling Dry Heating or A operation the air conditioner will start the following operation The fan speed will be automatically controlled Cooling operation 5 Dry operation In the operation suppression zone where capacity is kept to the minimum overcooling is prevented by raising the temperature setting by 1 after 1 hour and by 2 C after 2 hours of operation The room temperature is thus regulated between the operation suppression zone and the set tem perature Operation suppression zone o temperature g Set 1hour temperature 2 hours Fig 8 2 7 Heating operation Heat pump model only In the operation suppression zone where capacity is kept to the minimum overheating is prevented by lowering the temperature setting by 1 C after 1 hour and by 2 C after 2 hours of operation The room temperature is thus regulated between the set temperature and the operation suppression zone Set temperature 2 C Room temperature Operation start 1 hour Y Operation 2 hours suppression zone Fig 8 2 8 8 2 7 High POWER Operation When you push the Hi POWER button during Cool ing Heating or A operation the air conditioner will start the following operation A operation Auto change over Cooling operati
49. mp sensor TD 2 Degassing 3 Trouble on P M V Break down of compressor All off Displayed when error is detected 1 For details refer to the service manual of the outdoor unit to be combined 46 Check power voltage 50Hz 220 240V 10 60Hz 220V 10 Overload operation of refrigeration cycle Check installation condition Short circuit of outdoor diffuser 11 5 Judgment of Trouble by Every Symptom 11 5 1 Indoor Unit Including Remote controller 1 Power is not turned on Does not operate entirely Preliminary check 1 Is the supply voltage normal 2 Are the connection of the primary side and the secondary side of the power transformer inserted into the P C board 3 Is the FUSE F01 blown Turn the power off for about 5 seconds and then turn it on again Does the OPERATION lamp flash NO Does operation start when you push the START STOP button of the remote controller Does the transmission indicator of the remote controller flash normally and is the transmission really performed YES Refer to above Preliminary check 97 there is a defect the power transformer Is AC 220 240V supplied to the primary side of the power supply transformer YES Is the lead wire disconnected from the infrared rays receive parts NO Is A B select setting on the remote controller corr
50. ne Thermal insulation for drain pipe 10mm or more foam polyethylene Power supply cord 2 5mm HO7RN F or 245IEC66 Duct Drain pipe Outer 26mm diam Tapes Flange Panel Air filter L3 Grounding cable 1 6mm diam or more 9 2 Selection of Installation Place A WARNINGS Install the air conditioner where there is sufficient strength to withstand the weight of the unit If the strength is not sufficient the unit may fall down resulting in injury Install the air conditioner at a position keeping the height by 2 5m or more from the floor If you insert your hands or others directly into the unit during running of the air conditioner it is dangerous because you may contact with revolving fan or active electricity A CAUTION Do not install the air conditioner in a location subject to a risk of exposure to combustible gas Otherwise the combustible gas leaks stays around the unit and a fire may occur Upon approval of the customer install the air conditioner in a place that satisfies the following conditions Place where the unit can be installed horizontally Place where a sufficient servicing space can be ensured for safe maintenance and check Place where drained water will not cause any problem Avoid installing in the following places Place exposed to air with high salt content seaside area or place exposed to large quantities of sulfide gas hot sprin
51. nit controller controls speed of the compressor motor by controlling output voltage of the inverter and switching timing of the supply power current transfer timing so that motors drive according to the operation command And then the outdoor unit controller transfers reversely the operating status information of the outdoor unit to the indoor unit controller As the compressor adopts four pole brushless DC motor the frequency of the supply power from inverter to compressor is two times cycles of the actual number of revolution 1 Role of indoor unit controller The indoor unit controller judges the operation commands from the remote controller and per forms the following functions Judgment of suction air temperature of the indoor heat exchanger by using the indoor temp sensor Temperature setting of the indoor heat ex changer by using heat exchanger sensor Prevent freezing control Indoor fan motor operation control LED display control Transferring of operation command signal Serial signal to the outdoor unit Reception of information of operation status Serial signal including outside temp data from the outdoor unit and judgment display of failure 2 13 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 PMV contr
52. nstall the indoor unit Preparation for installation Setting fixing of indoor unit Fig 9 3 2 NOTE For installation of the outdoor unit refer to the Installation manual Packed in the outdoor unit 5 Connect cables and pipes 25 External view REQUIREMENT The hanging bolt pitch on longitudinal direction is not divided at center with the ceiling opening size Therefore check the relational position in the following figure 650 Inside flange 3 a F 2 4 Tall i co a EE aas amp ui t 4 Hu 2 et es SS on T 730 Hanging bolt pich i 5 T N eu 4 3 1 1 E mea Je 2 o 5 gt o e 5 Lie 1 1 L5 G qot Q V Y m D 640 Inside flange 1 X 371 au ee j K s wm le Ns E wy SE TH y wy Jg NS 4 g 19 7 PM X E BEN f _40
53. o operation and supply gas check gas leak also Unit operates normally during check If return serial signal does not stop between indoor terminal board 2 and 3 replace inverter P C board If signal stops between indoor terminal board 2 and 3 replace indoor P C board Block distinction Operation of diagnosis function Check code Block Outdoor P C board Air conditioner status Cause of operation Inverter over current off protective circuit operates Short time Remarks Displayed when error is detected Judgment and action Even if trying operation again all operations stop immediately Replace P C board Position detect circuit error All off or short circuit between windings of compressor Displayed when error is detected 1 Even if connecting lead wire of compressor is removed position detect circuit error occurred Replace P C board Measure resistance between wires of compressor and perform short circuit Replace compressor Current detect circuit error All off Displayed when error is detected Even if trying operation again all operations stop immediately Replace board Being out of place All off disconnection or short circuit of outdoor temp sensor Displayed when error is detected Check 5 serial LED 1 1 Check outdoor temp sensors TE TS 2 Check board Disconnection or short All off circu
54. o the opening port at the rear side of the indoor unit Cover for return air Fig 9 4 12 2 Mount the flange to the place from where the cover for return air was removed 3 Mount the square duct 4 Arrange the flange and the square duct 30 9 4 5 Points at Installation Work 1 General cautions 1 Considering installation places of indoor unit and supply chamber and structure of the building determine the duct path 2 In order to utilize the static pressure characteristics of the air supply in the indoor unit design the duct branching by setting size up to the air supply chamber or by setting length to the first branch as long as possible Min 200mm or longer so that an even air volume can be obtained Especially when setting the branching point just after air supplying of the indoor unit air concentrates at the center part and air is difficult to flow to the ducts at both sides 3 Connect each connecting section surely and apply sufficient thermal insulation In this model which the duct is branched in the ceiling compared with the general houses the high tem perature generates on the periphery in the cooling time Especially at attic and etc temperature differ ence increases between the supply air and outside of the duct and dewing may occur Dewing on the surface of the thermal insulator covering exposure of the metal connecting section or leaking portion of the cooling air may cause a troubl
55. oe Spent CABLE Hm EARTH lo INDOOR S TERMINAL IS RED BLOCK 80 CEDE gs BLK z 2 WHI GRY ZTN EXCHANGER GRY SENSOR c nu BK DRAIN PUMP AN 1 MOTOR BLK DRAIN UP KIT THERMO D SORTE SENSOR CN go er penis by RED S MAIN P C BOARD i MCC 87 SWITCH Beet OOM Br Hd ono PUR 2 CN14 2 GRY t pem a DRAIN UP KIT L OPTION FAN MOTOR MF CAPA Table 4 1 1 Quick check for failure diagnosis Color Check items Diagnosis result OPERATION indicator Check to see if the OPERATION indicator goes on and off when the main Switch or breaker is turned on Check the transformer and receiver unit Identification BRW BROWN RED RED WHI WHITE Terminal block Check the power supply voltage between D and Refer to the name plate Check the primary and secondary voltage of the transformer Check for fluctuate voltage between and YEL YELLOW BLU BLUE BLK BLACK Fuse 6 3A Check to see if the fuse blows out Check the R01 of the Varistor GRY GRAY PNK PINK DC 5V Check the voltage between and on CN11 connector Check the transformer and the power supply circuit of the rated voltage ORN ORANGE GRN GREEN PUR PURPLE DC 12V Check the voltage between and on CN14 connector Check the transfo
56. ol Detection of inverter input current and current release operation Over current detection and prevention operation to transistor module Compressor stop function Compressor and outdoor fan stop function when serial signal is off when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system Transferring of operation information Serial signal from outdoor unit to indoor unit Detection of outdoor temperature and operation revolution control Defrost control in heating operation Heat pump model only Temp measurement by outdoor heat exchanger and control for 4 way valve and outdoor fan Operations fol lowed to judgment of serial signal from indoor side Contents of operation command signal Serial signal from indoor unit controller to outdoor unit controller The following three types of signals are sent from the indoor unit controller Operation mode set on the remote controller Compressor revolution command signal defined by indoor temperature and set temperature Correction along with variation of room tem perature and correction of indoor heat ex changer temperature are added For these two types of signals Operation mode and Compressor revolution the outdoor unit controller monitors the input current to the inverter and performs the followed operation within the range that current does not exceed the allowable value Temperature of indo
57. on Performs the cooling operation at 1 C lower than the setting temperature When the room temperature is above the setting temperature In addition fan speed is high Noise level raises in accordance with fan speed Heating operation Heat pump model only Performs the heating operation at 2 C higher than the setting temperature 18 8 3 TEMPORARY Operation Setting the TEMPORARY switch to AUTO starts the automatic operation to COOL starts the cooling operation LOW respectively Setting the TEMPORARY switch to AUTO or COOL the operation can t be performed from the remote controller without STOP button Temporary Auto Operation is operated with the set temperature fixed at 24 Temporary Cooling Operation is operated with Indoor fan speed fixed to Low and with compressor motor speed fixed to 28 0Hz 8 4 Control of Drain up Kit Option 8 4 1 Dain Control n cooling and dry operation drain pump is actuated to drain up OPERATION CONTROL During cooling and drying operation Drain pump ON 8 4 2 Over Flow Check Control To stop the temporary operation set the switch to AUTO RESTART OFF AUTO RESTART COOL AUTO OFF ON L e int VOLTAGE1 220v 230V L 240v VOLTAGE2 REMOCON 220v _ lzsov a i Fig 8 3 1 Thermo OFF Thermo ON Drain pump Float switch CLOSE Compressor ON Indoor fan ON
58. or Safety carefully before servicing The precautions described below include the important items regarding safety Observe them without fail After the servicing work perform a trial operation to check for any problem Turn off the main power supply switch or breaker before the unit maintenance CAUTION New Refrigerant Air Conditioner Servicing THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY OZONE LAYER The characteristics of R410A refrigerant is easy to absorb water oxidizing membrane or oil and its pressure is approx 1 6 times of refrigerant R22 Accompanied with adoption of the new refrigerant refrigerating oil has been also changed Therefore during servicing work be sure that water dust former refrigerant or refrigerating oil does not enter into the refrigerating cycle of new refrigerant air conditioner To prevent from mixing of refrigerant and refrigerating oil the sizes of connecting sections of charging port of the main unit or installation tools are different from those for the conventional refrigerant Accordingly the exclusive tools are required for the new refrigerant R410A For connecting pipes use new and clean piping materials with high pressure tight force which were made for R410A only so that water or dust does not enter Moreover do not use the existing piping because there are problems about pressure tight force and impurity it CAUTION To Disconnect
59. or heat exchanger by indoor heat exchanger sensor Minimum revolution control 4 Contents of operation command signal Serial signal from outdoor unit controller to indoor unit controller The following signals are sent from the outdoor unit controller The current operation mode The current compressor revolution Outdoor temperature Existence of protective circuit operation For transferring of these signals the indoor unit controller monitors the contents of signals and judges existence of trouble occurrence Contents of judgment are described below Whether distinction of the current operation status coincide with the operation command signal Whether protective circuit operates When no signal is received from the outdoor unit controller it is assumed as a trouble 8 1 1 Capacity Control The cooling capacity is varied by changing compres sor motor speed The inverter changes compressor motor speed by changing AC 220 240V power to DC once and controls capacity by changing supply power status to the compressor with transistor module includes 6 transistors The outline of the control is as follows The revolution position and revolution speed of the motor are detected by detect ing winding electromotive force of the compressor motor under operation and the revolution speed is changed so that the motor drives based upon revolu tion speed of the operation command by changing timing current transfer t
60. p Kit Option The parts in the following parts list are conformed to RoHS Therefore be sure to use the following parts for repairing and replacing Location No Location No Description Description 43421004 Pump Drain PJV 0764 43070170 Pipe Drain 43451016 Switch Float 43097214 Screw Fix Pump 43072371 Pan Drain 43079290 Band Hose 43071020 Outlet Drain 43070178 Hose Drain The minimum reservation period of the maintenance parts for TOSHIBA air conditioners is defined as 9 years after the manufacturing end 57 This product is compliant with Directive 2002 95 EC and cannot be disposed as unsorted municipal waste TOSHIBA CARRIER CORPORATION 2 CHOME 12 32 KONAN MINATOKU TOKYO 108 0075 JAPAN Copyright 1999 to 2005 TOSHIBA CARRIER CORPORATION ALL Rights Reserved
61. protection of the terminal voltage of the running capacitor Table 8 1 1 Reference fan speed Fan mode Operation mode Fan speed rpm M13 900 to 1150 950 to 1200 1000 to 1250 600 800 650 to 850 700 to 900 900 to 1150 950 to 1200 1000 to 1250 650 to 850 700 to 900 750 to 950 14 8 2 Description of Operation Circuit Turning ON the breaker will flash the operation lamp This is the display of power ON or notification of power failure When pushing START STOP button on the remote controller receive sound is issued from the main unit 8 2 1 Fan Only Operation The Remote controller MODE Button is Set to the FAN ONLY Operation Once the setting is made the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing START STOP button When the FAN button is set to the AUTO position the indoor fan motor operates as shown in Fig 8 2 1 When the FAN SPEED button is set manually the motor operates with a constant air flow ECO mode cannot be set Room temp Set temp e T Set 0 temp Set temp 25 C NOTE 1 Calculated from the difference in the motor speed of M and L Fig 8 2 1 Auto setting of air flow 8 2 2 Cooling Operation The Remote controller MODE Button is Set to the COOL Position Once the setting is made the operation mode is memorized in the micro
62. r unit switch panel Operation Check Items Considerable main cause Measures Item by symptom controller light YES Is there direct sunlight on the remote controller sensor of the air conditioner NO Is operation Is there any air conditioner YES Battery life Is the operation enabled by setting the TEMPORARY switch at the air conditioner side to COOL or AUTO Does the transmission indicator of remote possible when the thyristor NO NO transmitter is moved fluorescent light nearer to the infrared near by signal receiver of the Push the START STOP button NO Push the RESET button at the lower part with tip of pencil etc Push the START STOP button Does the transmission indicator light NO YES NO Is there any Can any signal tone be heard in a transistor NO receiving sound and operation YES radio when transmitting within 5cm distance from the radio Keep the air conditioner away from thyristor fluorescent light Replace the battery Avoid direct Replace the sunlight P C board 49 Remote controller is failure Replace the remote controller Normal 11 6 How to Check Simply the Main Parts 2 Inspection procedures 11 6 1 How to Check the P C Board 1 When the P C board is judged to be defective
63. re Standard 41 2 4 2 mmAq Cooling high 32 Cooling Medium 28 Cooling L 24 Sound level 4 ow ig 33 Heating Medium 29 Heating high Heating Low 25 Height 230 Dimension Width 750 Depth 440 Net weight 19 Connecting type Full Operation Liquid side 06 35 Connecting pipe Gas side 09 52 Refrigerant R410A Wiring connection Interconnection 4 wires includes earth Usable temperature range Cooling Heating 21 32 0 28 Wireless remote controller 1 Remote controller holder 1 Mounting screws 2 93 5 x 16 L Drain hose 1 Elbow thermal insulation cover 1 Accessory Batteries Manganese Black screws Tapping screws Owners manual Installation manual 1 Refer to the service manual of the outdoor unit to be combined 2 Electrical characteristics at High fan speed under standard static pressure 3 Airflow volume at standard static pressure 4 Sound levels at standard static pressure are measured under the conditions specified by JIS B 8616 Notes For performance when each indoor unit combined with other unit refer to the service manual of outdoor unit The specification may be subject to change without notice for purpose of improvement RAS M10GDCV E RAS M13GDCV E RAS
64. revent cool air blowing when the unit has been activated Turn ON the power REMOTE CONTROLLER position operation stop condition Control P C board failure YES Start operation at HIGH cooling Does the fan rotate YES Are lead wires of P02 and connected to MF capacitor YES Does AC120V or higher voltage apply to between red and black lead of the motor YES Turn OFF the power Is it possible to rotate the Multi blade fan by hand YES Turn ON the power Stop the operation When rotating the Multi blade fan by hand at the operation stop condition is the rotation signal DC 12V 2 OV detected between 2 Purple lead and 3 Blue lead of the motor connector CN14 3 pulse 1 revolution Change the setting to LOW cooling NO Does the rotating speed of the fan lower YES Motor circuit 005 006 IC01 Q07 or 12V power circuit 001 002 failure 48 Replace the P C board Connect the lead wires properly Motor control circuit IC01 IC05 006 Q07 or 12V power circuit Q01 002 failure Replace the P C board Replace the Multi blade fan Replace the fan motor Replace the P C board 4 How to examine whether remote controller is good or bad Preliminary check 1 Does setting A B of the remote controller selection match with that indoo
65. rmer and the power supply circuit of the rated voltage Refer to the service data for the detailed failure diagnosis cuc GRN GREEN amp amp YEL YELLOW 5 SPECIFICATIONS OF ELECTRICAL PARTS 5 1 Indoor Unit Parts name Specifications Output Rated 60W 4 pole 1 phase 220 240 50Hz 220 60Hz Fan motor for indoor MF 200 60 4R M coil Winding resistance at 20 73 8 Thermo sensor TA sensor 10kQ at 25 Transformer TT 03 3 AC 240V Secondary DC 15V DC 500mA Microcomputer TMP87PM40ANG Heat exchanger sensor TC sensor 10kQ at 25 C Line filter L02 HF 2430 253Y0R8 25mH AC 0 8A Running capacitor CMPS45B155UYF 1 5uF AC 450V M10 M13 for indoor fan motor CMPS45B305UYF 3 0gF AC 450V M16 Fuse F01 TSCR6 3A T6 3A AC 250V Varistor R01 R02 R03 15G471K 470V Drain pump control relay G2R 1 H 10A AC 250V 10 6 REFRIGERANT CYCLE DIAGRAM RAS M10GDV E RAS M10GDCV E RAS M13GDV E RAS M13GDCV E INDOOR UNIT Evaporator gt Connecting pipe Thickness 0 8mm 26 35 Connecting pipe Thickness 0 8mm 9 52 Allowable height difference 2 Allowable pipe length 2 Sectional shape of heat insulator OUTDOOR UNIT RAS M16GDV E RAS M16GDCV E INDOOR UNIT Evaporator gt Multi blade fan
66. s direction by pushing gt e Indoor unit side b Flange procured locally Attach by pushing to the arrow direction Outside corner direction Seal thermal insulator with sticking material Square duct board ceo re ORE smm 25mm thickness 64kg m or equivalent Fig 9 4 10 Round duct Thermal insulator with sticking material Thermal insulator at indoor unit side 50mm width 6mm thickness Stuck already at shipment from the factory Aluminum tape Seal 50mm width m 4 Screws 6 pieces Fit to the arrow direction by pushing Round duct Flange Seal thermal insulator with sticking material Thermal insulator 25mm width 6mm t 25mm thickness 24kg m or equivalent Fit the seal thermal insulator 25mm width 6mm thickness by pushing to the arrow direction so that no clearance can be found between the flange and the round duct Fig 9 4 11 9 4 4 Caution for Safety 1 Return air side When you do not connect the duct to the return air side using steel and others apply a protective measures so that your hands or fingers do not directly touch with the motor or other electric parts 1 Return air from rear side 1 Follow the procedure same as that for the supply air side Flange mounting Square duct making Connecting work 2 Return air from lower side 1 Remove the cover for return air at the lower side of the indoor unit and attach the cover t
67. s wool of weight by 64kg m inner diameter is not enough resistance generates as the result air does not flow smoothly and loss of the static pressure increases For the thermal insulator use high density glass wool of weight by Duct board Weight of thermal 24kg m or equivalent insulator glass wool is 64 kg m or equivalent Weight of thermal insulator glass wool is dr E e5rm erre pemi ormare 24 kg m or equivalent Fig 9 4 6 150mm or more Fig 9 4 7 9 4 3 Connecting Method of the Duct 1 Supply air side 1 Using 6 screws mount the flange to the supply air port of the indoor unit Fig 9 4 8 2 Make the square duct according to inner dimension of the flange A x B Use a glass wool board with inside outside finishing by 25mm thickness and 64kg m density 3 Connect the flange and each type of duct Fig 9 4 9 Thermal insulator 50mm w 6mm t i Seal SDan E Thermal insulator i 08 25mm w 6mm t End Indoor unit Square duct board 25mm CAUTION Incomplete thermal insulation of the supply air flange and sealing may occur dewing resulted in falling of water drop 29 Square duct Thermal insulator with sticking material Thermal insulator at indoor unit side 50mm width 6mm t Ae Stuck already at shipment from the factory Aluminum tape Seal 50mm width Fit to the arrow a Screws 6 piece
68. sit the motor cover while holding it by hands Otherwise it may be resulted in falling of motor with heavy weight NOTE n reassembling do not pull each lead wire exceedingly to the fan motor with a little margin If it is pulled exceedingly an abnormal sound may be caused Part name Electrical parts assembly Procedure 1 Remove two fixing screws O4x10L of the TC sensor cover to remove the sensor cover 2 Remove TC sensor from the heat exchanger 3 Disconnect the connector inserted in the connector at the rear side of the electric parts box 4 Remove cover of the terminal block 4x10L Grade with washer 5 Remove two fixing screws O4x10L of the electric parts box to pull out the electric parts box 6 Remove two fixing screws O4x10L of the electric parts box cover to take out the electric parts box cover Remaks 13 EXPLODED VIEWS AND PARTS LIST gt LEE ee EAE x N 213 iy 216 201 202 215 The parts in the following parts list are conformed to RoHS Therefore be sure to use the following parts for repairing and replacing Location No 43065694 43065695 43022442 43022443 43026066 43019830 43020347 43072369 Description Remote Controller M10GDCV E M13GDCV E M16GDCV E Remote Controller M10GDV E M13GDV E M16GDV E Fan
69. t Do not touch the switches at the installation time because an installation dealer will adjust them TEMPORARY AUTO RESTART COOL AUTO OFF ON W VOLTAGE1 220V 230V 24ov VOLTAGE2 REMOCON 220 a Je Supply voltage VOLTAGE 1 220v 230V 240 Voltage select 1 Voltage select 2 VOLTAGE2 VOLTAGE 1 220v 230V 240 220v 23ov VOLTAGE2 VOLTAGE 1 220v 230V 240v 220v 230v e VOLTAGE2 Both are available 220V IL 23ov 220v esov 10 DRAIN UP KIT Option 10 1 Instructions for Fitting out Drain up Kit RB F81E2 A WARNINGS Ask an authorized dealer or qualified installation professional to install the drain up kit Inappropriate installation may result in water leakage electric shock or fire Turn off the main power supply switch or breaker before attempting any electrical work Make sure all power switches are off Failure to do so may cause electric shock Connect the connecting cable correctly If the connecting cable is connected by wrong way electric parts may be damaged Please read through this instructions before fitting accessories 10 1 1 Specifications RB F81E2 Power supply 10 220 240V 50Hz 220V 60Hz Power consumption 9 8 Discharge flow rate 450 530 cc min For 300 mm high pumping head Drain port dia VP20 ID 20 mm OD 226 mm Safety device Float switch Weight 2 kg Outside dimensions
70. t is necessary to set it to func tion as required HOW TO SET THE AUTO RESTART To set the auto restart function proceed as follows OPERATION Slide the slide switch to AUTO RESTART ON side TEMPORARY AUTO RESTART COOL AUTO OFF ON e TEMPORARY AUTO RESTART COOL AUTO OFF ON e m VOLTAGE1 220v 230V 240v VOLTAGE2 REMOCON 220 lllesov e MOTION When you set to ON position of Auto restart Beep Beep Beep sound 3 times are heard During power supply to the unit When power supplying returns system will be restart automatically The Auto Restart function will not accept an instruction if timer operation with the remote controller is selected Please refer to the section of setting the timer operation HOW TO CANCEL THE AUTO RESTART To cancel the AUTO RESTART function proceed as follows The system will now be required to manually restart with the remote controller after the main supply is returned OPERATION Slide the slide switch to AUTO RESTART OFF side TEMPORARY AUTO RESTART COOL AUTO OFF ON I MOTION When you set to OFF position of Auto restart Beep Beep Beep sound 3 times are heard During power supply to the unit When power supplying returns system will not be restart automatically 20 8 6 Remote Controller 1 0 Memory button MEMO 8 6 1 Parts Name of Remote Controller Push this but
71. temp sensor are defective Main P C board is defective Start the operation with the 1 Motor does not rotate following condition The key operation is accepted 1 Operation Cooling 2 The motor rotates but it vibrates too 2 Airflow High fan much 3 Continuous operation Poor contact of CN15 of the motor connector Poor contact CN14 of the motor connector 11 6 2 P C Board Layout Top View F01 Bottom View 51 Sensor characteristic table gt Resistance value 0 10 20 TA Room temp sensor TC Heat exchanger temp sensor 30 40 50 Temperature 11 6 3 Indoor Unit Other Parts Part name Room temp TA sensor Heat exchanger TC sensor Checking procedure Disconnect the connector and measure the resistance value with tester Normal temp _ Band Eod adea TA TATC KO Remote controller To item of How to judge whether remote controller is good or bad of the Judgment of trouble by symptom Indoor fan motor MF 200 60 4R Using a tester measure the resistance value of each winding coil For PC board side proceed to the item Only indoor fan does not oper ate of Judgment of Trouble by Every Symptom 1 3 CN14 2 board 1 J Fan motor Position P C board Resistance value Between Black D Red 74 150 Between Q
72. the Appliance from the Main Power Supply This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm If this is not possible a power supply plug with grounding must be used This plug must be easily accessible after installation The plug must be disconnected from the power supply socket in order to disconnect the appliance completely from the mains The installation fuse 25A D type must be used for the power supply line of this air conditioner WARNINGS Ask an authorized dealer or qualified installation professional to install maintain the air conditioner Inappropriate servicing may result in water leakage electric shock or fire Turn off the main power supply switch or breaker before attempting any electrical work Make sure all power switches are off Failure to do so may cause electric shock Connect the connecting cable correctly If the connecting cable is connected by wrong way electric parts may be damaged When moving the air conditioner for installing it in another place again be very careful not to get the specified refrigerant R410A with any other gaseous body into the refrigeration cycle If air or any other gas is mixed in the refrigerant the gas pressure in the refrigeration cycle becomes abnormally high and it resultingly causes burst of the pipe and injuries on persons Never modify this unit by removin
73. ton to stand by memorizing the 1 settings START STOP button Push the button again for more than 4 seconds Push the button to start operation to memorize the setting indicated on the A receiving beep is heard remote controller and 9 mark is indicated Push the button again to stop operation Refer to MEMORY PRESET OPERATION A receiving beep is heard 1 1 ECO timer button ECO If no receiving sound is heard from the indoor Push this button to start the ECO timer OFF unit push the button twice timer operation 2 Mode select button MODE You can select the OFF timer time among Push this button to select a mode four settings 1 3 5 or 9 hours Each time you push the button a mode is 12 PRESET button selected in a sequence that goes from Push thi he ai iti A Auto changeover control xt Cool ush this button to operate the air conditioner according to settings memorized by the 5 Dry X Heat For Heat pump model only i MEM Fan only For Cooling only model back to A A receiving beep is heard 13 TIMER button 3 Temperature button a Use this button to change the clock ON timer and OFF timer times To forward the time push the TIMER B button A The set temperature is increased up to 30 Y The set temperature is decreased to 17 C A receiving beep is heard 4 9 To set back the time push the TIMER E Fan speed button FAN button Push this button to s
74. ts box and the terminal block surely with the fixing screws Parts box cover lectric parts box Make a loop Diameter Approx 150mm Length 450mm to 500mm Make a loop on the cable for margin of the length so that the electric parts box can be taken out during servicing 35 Fig 9 8 1 10 p LY o d Ig N L A Y 40 30 1 Earth line Connecting cable Use the specified wire type Fig 9 8 2 9 8 1 Check and Test Operation Be sure to test the piping connections for gas leaking Check the flare nut connections valve stem cap connections and service port cap connections for gas leak with a leak detector or soap water 9 8 2 Setup of Selector Switch on Switch Panel D Temporary switch 3 Voltage select switch 6 Operation lamp TEMPORARY AUTO RESTART COOL AUTO OFF ON e VOLTAGE1 220v 230V 24ov VOLTAGE2 REMOCON 220v 230v 1 Flare nut connections Indoor unit Service port cap connection i SX Flare nut Valve stem cap connection AN connections Outdoor unit 2 Auto Restart switch 4 Remote controller select 5 Remote controller sensor Fig 9 8 4 Temporary switch For an temporary operation when the remote controller is not found or in a trial operation set the TEMPORARY switch to COOL or AUTO side If setting the switch to CO
75. ve code if passed If a trouble occurs the receiving sound Beep changes to Beep Beep Beep continues for approx 10 seconds Check the check code in the indication part of the remote controller e 2 digits alphanumeric characters are displayed in the indication part of the remote controller All the lamps of the air conditioner flash 5 times for 1 second To release the self diagnosis function push button Pushing the button once displays the operation stop and pushing the button twice returns the display before check Fig 11 4 1 44 11 4 2 Caution at Servicing 1 After servicing push the START STOP button to return to the normal mode 2 After servicing by the check code turn off breaker of the power supply and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status However the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory Table 11 4 1 Block distinction Operation of diagnosis function Check Block Indoor P C board etc Cause of operation Short circuit or disconnection of the room temperature sensor TA sensor Air conditioner status Operation continues Condition Displayed when error is detected Judgment and action Check the room temp sensor When the room temp sensor is normal check P C board Being out of place disconn

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