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2. SPECIFICATIONS

Unit model

Indoor

RAS-

18J2KVSG-E

RAS-18N4KVSG-E

RAS-B

22J2KVSG-E

RAS-B22N4KVSG-E

Outdoor

RAS-

18J2AVSG-E

RAS-

22J2AVSG-E

Cooling capacity

(kW)

Cooling capacity range

(kW)

1.39-6.70

Heating capacity

(kW)

7.00

Heating capacity range

(kW)

Power supply

1Ph/50Hz/220-240V

Electric

Indoor

Operation mode

Cooling

Heating

Cooling

Heating

characteristic

Running current

(A)

0.30-0.28

0.33-0.31

.33-0.31

Power consumption

(W)

Power factor

(%)

Outdoor

Operation mode

Cooling

Heating

Cooling

Heating

Running current

(A)

6.80-6.25

8.05-7.40

8.97-8.24

8.78-8.14

Power consumption

(W)

380

550

Power factor

(%)

Starting current

(A)

COP (Cooling / Heating)

3.52/3.77

07/3.72

Operating

Indoor

High

(Cooling / Heating)

(dB-A)

44/44

45/46

noise

Medium

(Cooling / Heating)

(dB-A)

40/41

Low

(Cooling / Heating)

(dB-A)

31/31

34/34

Outdoor

(Cooling / Heating)

(dB-A)

8/50

9/5

Indoor unit

Unit model

RAS-18J2KVSG-E

RAS-18N4KVSG-E

RAS-B22J2KVSG-E

RAS-B22N4KVSG-E

Dimension

Height

(mm)

320

Width

(mm)

1053

Depth

(mm)

Net weight

(kg)

Fan motor output

(W)

Air flow rate

(Cooling / Heating)

/ min)

17/17

17/18

Outdoor unit

Unit model

RAS-18J2AVSG-E

RAS-22J2AVSG-E

Dimension

Height

(mm)

Width

(mm)

780

Depth

(mm)

Net weight

(kg)

Compressor

Motor output

(W)

900

Type

Model

KTN130D30UFZ

Fan motor output

(W)

Air flow rate

(Cooling / Heating)

/ min)

36/36

Piping

Type

Flare connection

connection

Indoor unit

Liquid side

(mm)



6.35



6.35

Gas side

(mm)



12.70



12.70

Outdoor unit

Liquid side

(mm)



6.35



6.35

Gas side

(mm)



12.70



12.70

Maximum length

(m)

Maximum charge-less length

(m)

Maximum height difference

(m)

Refrigerant

Name of refrigerant

R32

Weight

(kg)

1.10

Wiring

Power supply

3 Wires: Includes earth (Outdoor)

connection

Interconnection

4 Wires: Includes earth

Usable temperature range

Indoor

(Cooling / Heating)

(

21-32/ -28

Outdoor

(Cooling / Heating)

-15,46/-15,24

9.20-8.45

1.10-6.50

1.20-6.00

.00

5.00

6.10

1.15-7.50

6.80-6.25

.55-6.90

9.30-8.55

2-1. Specification

Twin

rotary type with DC-inverter variable speed control

* The specification may be subject to change without notice for purpose of improvement.

Accessory

Indoor unit

Installation plate

Wireless remote controller

Batteries

Remote controller holder

Active Carbon Catechin filter

Mounting screw



4x25L)

Remote controller holder

Flat

head wood screw

Installation manual

Owner's manual



3.1x16L)

(

- 6 -

Содержание RAS-18J2AVSG-E

Страница 1: ...vised on March 2020 Indoor Unit RAS 18J2KVSG E RAS B22J2KVSG E RAS B24J2KVSG E RAS 18N4KVSG E RAS B22N4KVSG E RAS B24N4KVSG E SPLIT TYPE Outdoor Unit RAS 18J2AVSG E RAS 22J2AVSG E RAS 24J2AVSG E R32 FILE NO SVM 20016 2 ...

Страница 2: ...EWS 18 5 WIRING DIAGRAM 21 6 SPECIFICATIONS OF ELECTRICAL PARTS 24 7 REFRIGERANT CYCLE DIAGRAM 25 8 CONTROL BLOCK DIAGRAM 28 9 OPERATION DESCRIPTION 30 10 INSTALLATION PROCEDURE 69 11 HOW TO DIAGNOSE THE TROUBLE 87 12 HOW TO REPLACE THE MAIN PARTS 114 13 EXPLODED VIEWS AND PARTS LIST 137 2 ...

Страница 3: ...prevent mixing of refrigerant or refrigerating machine oil the sizes of connecting sections of charging port on main unit and installation tools are different from those used for the conventional refrigerant units Accordingly special tools are required for the new refrigerant R32 units For connecting pipes use new and clean piping materials with high pressure fittings made for R32 only so that wat...

Страница 4: ... IT MAY RESULT IN THE PIPE BURSTING AND POSSIBLE PER SONNEL INJURIES IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE SERVICE WORK AND THE INSTALLATION WORK IMMEDIATELY LET FRESH AIR INTO THE ROOM IF THE REFRIGERANT GAS IS HEATED SUCH AS BY FIRE GENERATION OF POISONOUS GAS MAY RESULT WARNING Never modify this unit by removing any of the safety guards or bypassing any of the s...

Страница 5: ...lectric shock 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 the unit at place where leakage of ﬂammable gas may occur In case gas leaks and accumulates at surrounding of the unit it may cause of ﬁre Do not install in a place that can increase the vibration of the unit Do not install in a place that can ...

Страница 6: ...17 17 18 Outdoor unit Unit model RAS 18J2AVSG E RAS 22J2AVSG E Dimension Height mm 550 550 Width mm 780 780 Depth mm 290 290 Net weight kg 34 34 Compressor Motor output W 900 900 Type Model KTN130D30UFZ Fan motor output W 43 Air flow rate Cooling Heating m3 min 35 35 36 36 Piping Type Flare connection connection Indoor unit Liquid side mm 6 35 6 35 Gas side mm 12 70 12 70 Outdoor unit Liquid side ...

Страница 7: ...ight kg 42 Compressor Motor output W 1100 Type Model DX151A1T 30N Fan motor output W 70 Air flow rate Cooling Heating m3 min 49 49 Piping Type Flare connection connection Indoor unit Liquid side mm 6 35 Gas side mm 12 70 Outdoor unit Liquid side mm 6 35 Gas side mm 12 70 Maximum length m 25 Maximum charge less length m 15 Maximum height difference m 15 Refrigerant Name of refrigerant R32 Weight kg...

Страница 8: ...G E RAS B22J2KVSG E RAS B24J2KVSG E RAS 18J2KVSG E RAS B22J2KVSG E Heating Capacity ratio 120 100 80 60 40 20 0 15 10 5 0 Outside Temperature ºC 5 10 Capacity ratio 100 6 00kW RAS 18J2KVSG E 7 00kW RAS B22J2KVSG E 8 00kW RAS B24J2KVSG E Conditions Indoor DB 20oC WB 15oC Outdoor DB 7oC WB 6oC Indoor Air Flow High Pipe Length 7 5m Voltage 230V 50Hz 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100...

Страница 9: ...G E RAS B22N4KVSG E RAS B24N4KVSG E RAS 18N4KVSG E RAS B22N4KVSG E Heating Capacity ratio 120 100 80 60 40 20 0 15 10 5 0 Outside Temperature ºC 5 10 Capacity ratio 100 6 00kW RAS 18N4KVSG E 7 00kW RAS B22N4KVSG E 8 00kW RAS B24N4KVSG E Conditions Indoor DB 20oC WB 15oC Outdoor DB 7oC WB 6oC Indoor Air Flow High Pipe Length 7 5m Voltage 230V 50Hz 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100...

Страница 10: ...rs in places where installation repairs or similar work on air conditioning equipment is performed 3 If a refrigeration gas leakage occurs during installation servicing be sure to ventilate fully If the refrigerant gas comes into contact with fire a poisonous gas may occur 4 When installing or removing an air conditioner do not allow air moisture dust or oil to remain in the refrigeration cycle Ot...

Страница 11: ... of socket joints Nominal diameter 1 4 3 8 1 2 5 8 Reference outer diameter of copper pipe jointed mm 6 35 9 52 12 70 15 88 Minimum joint thickness mm 0 50 0 60 0 70 0 80 3 2 2 Processing of Piping Materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil than lubricating oils used in the insta...

Страница 12: ...pe 0 to 0 5 0 to 0 5 0 to 0 5 0 to 0 5 Conventional flare tool Clutch type Wing nut type 1 0 to 1 5 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 0 to 1 5 2 0 to 2 5 Table 3 2 4 Dimensions related to flare processing for R22 Nominal diameter 1 4 3 8 1 2 5 8 Outer diameter mm 6 35 9 52 12 70 15 88 Thickness mm 0 8 0 8 0 8 1 0 A mm Flare tool for R22 clutch type 0 to 0 5 0 to 0 5 0 to 0 5...

Страница 13: ...ning torque for R32 is the same as that for conventional R22 Incidentally when the torque is weak the gas leakage may occur When it is strong the flare nut may crack and may be made non removable When choosing the tighten ing torque comply with values designated by manufacturers Table 3 2 7 shows reference values NOTE When applying oil to the flare surface be sure to use oil designated by the manu...

Страница 14: ...ifold Charge hose Vacuum pump adapter Electronic balance for refrigerant charging Leakage detector Usage Pipe flaring Flaring by conventional flare tool Connection of flare nut Evacuating refrigerant charge run check etc Vacuum evacuating Refrigerant charge Gas leakage check R32 R410A air water heat pump installation Existence of new equipment for R32 Yes Yes Yes Yes Yes Yes Yes Whether conven tio...

Страница 15: ...er and the connecting port of the electronic balance and charge liquid refrigerant Indoor unit Outdoor unit Opened Opened Refrigerant cylinder with siphon Check valve Open close valve for charging Electronic balance for refrigerant charging Opened Closed Service port 3 4 Recharging of Refrigerant When it is necessary to recharge refrigerant charge the specified amount of new refrigerant according ...

Страница 16: ...ler Phosphor bronze brazing filler is generally used to join copper or copper alloy 3 Low temperature brazing filler Low temperature brazing filler is generally called solder and is an alloy of tin and lead Since it is weak in adhesive strength do not use it for refrigerant pipes 1 Phosphor bronze brazing filler tends to react with sulfur and produce a fragile compound water solution which may cau...

Страница 17: ... use a flux which does not contain chlorine 3 When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Remove the flux after brazing 3 5 3 Brazing As brazing work requires sophisticated techniques experiences based upon a theoretical knowledge it must be performed by a person qualified In order to prevent the oxide film from occurring in t...

Страница 18: ... 73 5 Knock Out System Knock Out System 71 5 50 50 71 5 50 50 Air Outlet Heat Exchanger Air Filter Air Inlet Grille Inlet Front Panel 44 141 18 Installation plate outline Center line Hanger Hanger Outline of indoor unit For stud bold 6 For stud bold 8 10 Hanger 786 85 23 235 215 215 235 320 40 6 5 47 215 5 262 5 262 5 109 6 5 40 153 5 ...

Страница 19: ...B Detail Drawing Front leg FAN GUARD COVER PV Liquid side Flare 6 35 Ø Gas side Flare 12 7 Service port Installation dimension Air outlel 100 or more 100 or more 600 or more 600 or more Air intlel Ø Ø Ø Ø6 hole 86 Ø6 hole Ø11x14 hole R15 28 A 320 R5 5 36 108 125 50 137 92 5 4 600 320 90 600 90 275 290 550 Ø 436 Z R15 50 36 2 69 Unit mm 340 19 ...

Страница 20: ...tail drawing Front leg 299 Electrical part Liquid side Flare 6 35 Gas side View Z Service port 330 316 630 330 106 29 137 92 330 316 5 4 318 100 600 99 69 FAN GUARD 440 COVER PV ViewZ 2 11 x 14 Long holes For 8 10 anchor bolt Installation dimension Air outlel 100 or more 100 or more 600 or more 600 or more Air intlel 600 320 2 R5 5 x 17L Ushape For 8 10 anchor bolt Flare 12 70 350 20 ...

Страница 21: ...5 WIRING DIAGRAM RAS 18J2KVSG E RAS 18N4KVSG E RAS 18J2AVSG E 21 ...

Страница 22: ...RAS B22J2KVSG E RAS B22N4KVSG E RAS 22J2AVSG E 22 ...

Страница 23: ...RAS B24J2KVSG E RAS B24N4KVSG E RAS 24J2AVSG E 23 ...

Страница 24: ...sor Inverter attached 62kΩ at 20 C 8 Outside air temp sensor TO sensor Inverter attached 9 Heat Exchanger temp sensor TE sensor Inverter attached 10kΩ at 25 C 10 Terminal block JXO 5B AC 250V 20A Parts name 10kΩ at 25 C SQ A2522G 000352 AC 220 240V No Type ype Specificat 1 Fan Motor for indoor 2 Room temp sensor TA sensor 10kΩ at 25 C 3 Heat exchanger temp sensor TC sensor 10kΩ at 25 C 5 Louver mo...

Страница 25: ... P Pressure measurement Gauge attaching port Vacuum pump connecting port Pulse Modulating valve at liquid side TD 4 way valve Compressor KTN130D30UFZ TS T2 Outdoor heat exchanger Temp measurement Propeller fan OUTDOOR UNIT Muffler Strainer Max 20m Min 2m Chargeless 15m Split capillary TE Strainer Refrigerant amount 1 10kg NOTE The maximum pipe length of this air conditioner is 15 m When the pipe l...

Страница 26: ...ized copper pipe Outer dia 12 70mm Thickness 0 8mm Pulse Modulating valve at liquid side TD 4 way valve Compressor DX151A1T 30N Outdoor heat exchanger Propeller fan OUTDOOR UNIT Muffler Tank Muffler TE TC TA Max 25m Min 2m Chargeless 15m TO Strainer RAS B24J2KVSG E RAS B24N4KVSG E RAS 24J2AVSG E Strainer Refrigerant amount 1 14kg Split capillary T2 Temp measurement TS NOTE The maximum pipe length ...

Страница 27: ...o 1 1 11 to 13 49 to 52 High High 88 condition C Tempeature Heat exchanger pipe temp Model name Standard Indoor Outdoor Compressor RAS pressure fan mode fan mode revolution Indoor Outdoor P MPa T1 C T2 C rps 2 9 to 3 1 43 to 45 0 to 1 High High 90 3 0 to 3 2 44 to 46 1 to 2 High High 98 condition C Tempeature Heat exchanger pipe temp B22J2KVSG E B22N4KVSG E B24J2KVSG E B24N4KVSG E Connecting pipin...

Страница 28: ...al Signal Communication Functions M C U Indoor Unit Control Panel Power Supply Remote Control Heat Exchanger Sensor Temperature Sensor Infrared Rays Signal Receiver Infrared Rays Initiallizing Circuit Clock Frequency Oscillator Circuit Louver Motor 36 7KHz Power Supply Circuit Noise Filter Indoor Fan Motor Timer Display Operation Display Louver Driver Louver ON OFF Signal Serial Signal Communicati...

Страница 29: ...current Detector PWM synthesis function Input current release control IPM over current detect control Outdoor fan control High power factor correction control Inverter output frequency control A D converter function P M V control Discharge temp control 4 way valve control Signal communication to indoor unit P M V Pulse Modulating Valve M C U Micro Controller Unit M C U For INDOOR UNIT 4 way valve ...

Страница 30: ...ommand 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 occu...

Страница 31: ...ntrol 47 13 Self Cleaning function 49 14 Remote A or B selection 51 9 3 Auto Restart Function 9 3 1 How to Set the Auto Restart Function 57 9 3 2 How to Cancel the Auto Restart Function 58 9 3 3 Power Failure During Timer Operation 58 25 9 4 Remote Controller and Its Fuctions 9 4 1 Parts Name of Remote Controller 59 9 4 2 Operation of remote control 59 15 QUIET mode 52 17 COMFORT SLEEP mode 51 16 ...

Страница 32: ...OMFORT SLEEP Indoor unit control Power relay signal Serial transmission Serial signal Inverter Transmission Signal receiving Outdoor unit Indoor unit control Command signal generating function for indoor unit operation Calculation function temperature calculation 3 minute delay function for compressor reactivation Activation compensation function for indoor fan Cold draft preventive function Timer...

Страница 33: ...the indoor fan is operated according to the contents of 2 Indoor fan motor control and the louver according to the contents of 9 Louver control respectively 3 The outdoor unit controls the outdoor fan motor compressor pulse Modulating valve and 4 way valve according to the operation signal sent from the indoor unit Remote control settings Operation ON Indoor unit control Operation command signal t...

Страница 34: ...operation Selection of operation mode As shown in the following figure the operation starts by selecting automatically the status of room temperature Ta when starting AUTO operation 1 When reselecting the operation mode the fan speed is controlled by the previous operation mode 1 Detects the room temperature Ta when the operation started 2 Selects an operation mode from Ta in the left figure 3 Fan...

Страница 35: ...ownward Fan speed and air flow volume broadly vary with position Fig 1 Fig 2 2 5 Ta C 2 0 1 5 1 0 0 5 Tsc a b c d e M WC 3 4 5 L W7 Air volume AUTO L L M M H W7 L M 2 WA M H 2 WD Indication Fan speed Fan speed setup COOL ON AUTO MANUAL 3 Fan speed M L x 3 4 L 4 Fan speed M L x 2 4 L 5 Fan speed M L x 1 4 L Linear approximation from M and L Quiet W5 of louver 1 When setting the fan speed to L L M M...

Страница 36: ...0 759 780 750 W8 L L L 700 663 680 600 750 721 720 660 W7 L L 680 600 640 540 720 660 700 663 W6 L L 600 480 600 480 650 529 650 529 W5 UL UL L 550 385 550 385 570 417 570 417 W4 UL 550 385 530 322 550 385 550 385 W3 SUL SUL SL 540 346 520 298 540 346 540 346 W2 SUL 520 298 520 298 520 298 520 298 W1 500 243 500 243 500 243 500 243 Fan speed Mode RAS B24J2KVSG E RAS B24N4KVSG E level Cooling Heati...

Страница 37: ...5 c 1 0 d 1 5 e 2 0 f 2 5 g 5 0 5 5 L W9 M WD 1 2 3 H WE H WE Line approximate H and SUL with Tc SUL W2 Stop 46 46 Tc 34 45 45 33 33 33 21 32 32 20 A 4 A 4 A 4 A 4 A 4 A 4 Fan speed MANUAL in starting Fan speed AUTO in stability Fan speed AUTO in starting L L M M H W8 L M 2 WA M H 2 WE Indication Fan speed Fan speed setup HEAT ON AUTO YES NO MANUAL TC 42 C Min air flow rate control Tc 52 51 42 41 ...

Страница 38: ...s shown in the table below 1 Outdoor unit operation command Outdoor fan control Air conditioner OFF Alarm display 2 Fan speed 400 by strong wind when the motor OFF Fan motor OFF continues Use wind for heat exchanging Outdoor Fan Speeds rpm In cooling operation In heating operation Compressor speed RAS 18J2AVSG E Hz 20 4 20 4 Hz 30 6 30 6 Hz Compressor speed RAS 18J2AVSG E Hz 20 4 20 4 Hz 48 6 48 6...

Страница 39: ... compressor speed so that electric power of the compressor drive circuit does not exceed the specified value 5 Current release control Outdoor temp To Setup of current release point Current decrease Outdoor unit inverter main circuit control current High Low Reduce compressor speed Operating current Setup value Capacity control continues 1 The input current of the outdoor unit is detected in the i...

Страница 40: ...he compressor speed is kept Q zone When temperature of the indoor heat exchanger drops in the range from 48 C to under 55 C the compressor speed is kept Q zone 2 When temperature of the indoor heat exchanger rises to 55 C or higher the compressor speed is reduced P zone 3 When temperature of the indoor heat exchanger does not rise to 52 C or when it drops below to 48 C the capacity control operati...

Страница 41: ... When temperature of the indoor heat exchanger becomes 38 C or lower stop the indoor fan Finish of defrost operation Returning conditions from defrost operation to heating operation 1 Temperature of outdoor heat exchanger rises to 8 C or higher 2 Temperature of outdoor heat exchanger is kept at 5 C or higher for 80 seconds 3 Defrost operation continues for 15 minutes Returning from defrost operati...

Страница 42: ...by the microcomputer The angle of the louver is indicated as the louver closes fully is 0 mode COOL HEAT and the louver returns to the stored position when the next operation is performed Cooling Heating memory position 1 Louver position in cooling operation Wide air direction Wide angle Right wide Left wide Spot air direction Spot front Spot right Spot left Initial setting of Cooling storage posi...

Страница 43: ...etc Description Louver position in heating operation Wide air direction Wide angle Right wide Left wide Spot air direction Spot front Spot right Spot left Heating operation AUTO HEAT Initial setting of Heating storage position Louver Directs downward 79 1 43 ...

Страница 44: ...Down louver position can be arbitrarily set up by pressing FIX button Front blowing Left blowing Right blowing Front blowing The Left Right louver position can be arbitrarily set up by pressing FIX button Horizontal blowing Inclined blowing Blowing downward Air direction Inclined blowing Horizontal blowing 44 ...

Страница 45: ... Swing When pressing SWING button during operation the louver starts swinging Upper Limit Position Lower Limit Position Fixed Position before start swing 17 5 o 17 5 o Swing range 35o Up Down and Left Right louver are same setting 4 HADA CARE Position Air flow upward to the ceiling provide indirect air flow to body and homogenize room temperature HADA care Louver position Initial setting of Coolin...

Страница 46: ...min 10 DRY max COOL min 6 x 3 COOL min 9 DRY max COOL min 6 x 2 COOL min 8 DRY max COOL min 6 x 1 COOL min C during the ECO operation 3 5 3 0 2 5 1 5 1 0 TSC 1 0 2 0 5 5 1H 2H 11 10 7 6 5 4 3 2 1 OFF Dry Max 12 11 9 8 10 6 0 6 5 3H 4H 5 0 4 5 4 0 2 0 0 5 0 5 12 9 8 Time Zone Frequency FAN Min Hz The indoor fan speed is not controlled and can be selected Heating operation 1 The difference of room t...

Страница 47: ...d up to the commanded speed Operates with speed commanded by the serial signal Press RESET button Did you press RESET button for 3 seconds or more Did you press RESET button for 10 seconds or more Switch to AUTO RESTART control YES NO NO YES Temporary AUTO operation Temporary COOL Operation 1 When pressing RESET button the temporary AUTO operation starts 2 When keeping RESET button pressed for 3 s...

Страница 48: ... of valve so that it is in the range of set tempera ture Discharge temp control SH Super Heat amount Ts Temperature of suction pipe of the compressor Tc or Te Heat exchanger temperature at evaporation side PMV Pulse Modulating Valve control 4 When defrost operation is performed the open degree of valve is adjusted accord ing to each setup conditions during preparation for defrost and during defros...

Страница 49: ...of the operation performed prior to the reception of the stop code 3 After the Self Cleaning operation has been performed for the specified period the unit stops operating Unit now performing cooling or dry operation Press STOP button Only timer indicator lights and Self Cleaning operation starts Time set now elapses Operation stops function During Self Cleaning operations The louver opens slightl...

Страница 50: ...oller to confirm setting Note Table above will show current status of Self Cleaning function Set or Cancel Self Cleaning function by push the RESET button on air conditioner When setting is changed the sound warning will alarm Beep The setting is changed following below 14 1 2 Self Cleaning function release How to set cancel Self Cleaning function To set cancel the Self Cleaning function proceed a...

Страница 51: ...escription When operating one indoor unit in a situation where two indoor units have been installed in the same room or nearby rooms this operation prevents the remote controller signal from being received simultaneously by both units thus preventing both units from operating 3 Operation The indoor unit on which the remote controller selection has been set to B receives the signal of the remote co...

Страница 52: ...ute delay time for compressor and 1 hour for plasma air purifier are set for the maintenance of the unit Purpose To start the unit immediately for the purpose of testing trial etc short timer can be used maintenance of the unit Short Timer Setting 1 Press button to turn the unit OFF 2 Set the operation mode on the remote control without sending the signal to the unit 3 Use the tip of the pencil to...

Страница 53: ...on on remote controller is pressed Silent 1 Cooling heating capacity is limited maximum for 70 of rated Only compressor speed is limited Silent 2 CDU sound level is limited for lowest CDU sound level Compressor and CDU fan speed are limited This function is used when the user need to keep silent at outdoor side It is limit maximum compressor speed and CDU fan speed Sound level can be implemented b...

Страница 54: ...ir circulation during other heat source applied Note With Fireplace operation on heating mode indoor unit always runs and cold air breezing might be occurred Fireplace Operation 22 8 C heating 8 C Button on remote controller is pressed Set temperature is performed for 5 C to 13 C and no cold draft prevention control Intended for cold latitudes and performs objective heating operation 8 C heating o...

Страница 55: ...f the preset temperature on the 3 Heating operation remote controller does not change The indoor unit s fan speed level increase 1 tap The preset temperature increases 2ºC The value of the preset temperature on the 4 The Hi POWER mode can not be set in Dry operation The Hi POWER operation will be cancelled when press Hi POWER button again 24 Operation mode setectable 2 1 Purpose Choosing the opera...

Страница 56: ...wn on remote control LCD then release the button 2 Pre Rise or Decrease to adjust brightness in 4 levels Remote control LCD Operation display Brightness Lamp illuminates full brightness 100 Lamp illuminates 50 brightness 50 Lamp illuminates 50 brightness and the operation lamp is turned off 50 All lamps are turned off All turned off and the lamp illuminates for 5 seconds before In the examples of ...

Страница 57: ...te controller to turn it on When the unit is standby Not operating When the unit is in operation 9 3 Auto Restart Function This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down The operation will resume without warning three minutes after power is re...

Страница 58: ... to operate at this time press RESET button once more or use the remote controller to turn it on 9 3 2 How to Cancel the Auto Restart Function To cancel auto restart function proceed as follows Repeat the setting procedure the unit receives the signal and beeps three times The unit will be required to be turned on with the remote controller after the main power supply is turned off When the system...

Страница 59: ... installation instruction in case of wired control is required In wire operation remote controller will return to initial condition PRESET TIMER and CLOCK will return to initial condition when user shutdown power supply of Air conditioner 1 2 3 4 6 5 7 9 8 Power selection Silent button Program P1 P4 Day Edit button Setup button Off timer button Clear button Reset button RESET 1 Infrared signal emi...

Страница 60: ... PG 1 appears on the LCD Press to change the program number in the sequence program 1 to program 4 PG 1 PG 2 PG 3 4 PG 4 Press or to select the desired time The time can be set between 0 00 and 23 50 in 10 minute intervals Press and hold the button to change setting time for 1 hr Only one of ON or OFF timer can be set on each program ON timer display OFF timer display OFF timer is used to stop the...

Страница 61: ...desired fan speed 8 Add operations if required 6 Press 7 Press Press to use 8 C operation Notes Fireplace cannot select and memorize in weekly function Press Press Press to use ECO operation to use Hi POWER operation to use SILENT operation 9 Adding or editing the program The program can be set to perform on all the required days until is pressed to conf rm the setting 10 If adding or editing a pr...

Страница 62: ...r to be Resetting the operation 1 Press 2 Press press conf rmed 3 Press to exit conf rming mode Deactivating WEEKLY TIMER operation Press while WEEKLY is displayed on the LCD The WEEKLY indicator will disappear from the LCD However the program will remain in the remote control The TIMER lamp goes off To reactivate the WEEKLY TIMER operation again press again LCD shows the next program The program ...

Страница 63: ...ll blink to delete the program 2 Press deleted 3 Press 4 Press Press while the LCD is blinking The program has now been deleted All programs The day of the week and the program number will be displayed 1 Press 2 Press and hold for 3 seconds All programs will be deleted and LCD displays current operation Notes Make sure the remote control receiving module on the air conditioner receives the signal ...

Страница 64: ...ill continue to run at super low speed programmed from factory 8 C Heating Operation 8 C Heat mode operation for keep room temperature 5 13 C with less of energy usage Fireplace and 8 C Heating Operation 8 C FIREPLACE 1 FIREPLACE 2 Normal operation Note While Fireplace operation on heating mode indoor unit fan always runs and cold air breezing might be occurred Fireplace and 8 C will operate in He...

Страница 65: ...and automatically turn OFF Except in DRY mode 1 Press Select 1 3 5 or 9 hrs for OFF timer operation Note The cooling operation the set temperature will increase automatically 1 degree hour for 2 hours maximum 2 degrees increase For heating operation the set temperature will decrease 2 Press to cancel the comfort sleep operation 9 HADA CARE FLOW AND AIR FLOW OPERATION HADA CARE FLOW Air f ow upward...

Страница 66: ...will have a tight sleep in nighttime By this feature the heating capacity will be optimized to deliver such silent experience The silent operation can be selected from one of two purposes Silent 1 and Silent 2 There are three setting parameters Standard level Silent 1 Silent 2 Silent 1 Though operating silently the Heating or Cooling capacity is still prioritized to ensure having suff cientcomfort...

Страница 67: ...future use The setting will be memorized by the unit for future operation except air flow direction 1 Select your preferred operation for 3 seconds to memorize the setting The P mark 2 Press and hold displays 3 Press Operate the preset operation 13 AIR FLOW DIRECTION 1 Press Move the louver in the desired vertical direction 2 Press FIX Move the louver in the desired horizontal direction 3 Press 6 ...

Страница 68: ...he Hi POWER button to start and press it again to stop the operation 8 PRESET indicator Flashes for 3 seconds when the PRESET button is pressed during operation The mark is shown when holding down the button for more than 3 seconds while the mark is flashing Press another button to turn off the mark 9 POWER SEL 10 A B change indicator remote controller When the remote controller switching function...

Страница 69: ...front panel Air filter Hook Installation plate Hook 50 mm or more 300 mm or more 170 mm or more 600 mm or more 100 mm or more 100 mm or more 600 mm or more 600 mm or more 2 Wireless remote control The provided Remote Controller is a wireless type which also can be used as a wire Please see How to Connect The Remote Controller for Wired Operation in case of wired control is required For the rear le...

Страница 70: ...e outdoor unit before installing it w When using a multi system outdoor unit refer to the installation manual provided with the model concerned Part code Parts name Q ty A Refrigerant piping Liquid side Ø6 35 mm Gas side Ø12 70 mm One each B Pipe insulating material polyethylene foam 8 mm thick 1 C Putty PVC tapes One each 125 mm 108 mm 28 mm 340 mm 600 mm 90 mm Drain outlet 86 mm 102 mm Ø 2 5 m m...

Страница 71: ...hen dust tuck or covers the filter 1 Recommend to use vacuum to clean by sucking the dusts which stick or dip inside the filter or use the blower to blow the dust go out through the filter 2 If necessary to use water to clean simply use the plain water to wash the filter dry with the sunlight for 3 4 hours or until it completely dry Nevertheless use hair drier to dry it However washing with water ...

Страница 72: ...ort size have been changed to 1 2 UNF 20 threads per inch When purchasing a charge hose be sure to confirm the port size As pressure is high and gasification speed is fast it is difficult to read the indicated value by means of charging cylinder as air bubbles occur The size of opposite sides of flare nuts have been increased Incidentally a common wrench is used for nominal diameters 1 4 and 3 8 B...

Страница 73: ... a hole When installing the refrigerant pipes from the rear 1 After determining the pipe hole position on the mounting plate A drill the pipe hole 65 mm at a slight downward slant to the outdoor side NOTE When drilling a wall that contains a metal lath wire lath or metal plate be sure to use a pipe hole brim ring sold separately Mounting the installation plate Fig 10 3 3 Fig 10 3 2 Remote A place ...

Страница 74: ...4 5 6 Open two screw cap and securely remove two screws at the front panel Slightly open the lower part of the front panel then pull the upper part of the front panel toward you to remove it as shown on ﬁgure 1 Arrange the control wire as detail and speciﬁcation as shown on ﬁgure 2 Securely connect the control wire to terminal of Display unit as shown on ﬁgure 3 tighten ﬁrmly but not over 0 12 N m...

Страница 75: ...e Piping preparation 1 Die cutting back body slit Cut out the slit on the leftward or right side of the back body for the left or right connection and the slit on the bottom left or right side of the back body for the bottom left or right connection with a pair of nippers 2 Changing drain hose For leftward connection bottom leftward connection and rear leftward connection s piping it is necessary ...

Страница 76: ...e auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double taping at the joint moreover seal the joint with the vinyl tape etc Since dewing results in a machine trouble make sure to insulate both the connecting pipes Use polyethylene foam as insulating material When bending a pipe carefully do it not to crush it Installation pl...

Страница 77: ...nsion drain hose insulate the connecting part of extension drain hose with shield pipe Fig 10 3 17 CAUTION Arrange the drain pipe for proper drainage from the unit Improper drainage can result in dew dropping This air conditioner has the structure designed to drain water collected from dew which forms on the back of the indoor unit to the drain pan Therefore do not store the power cord and other p...

Страница 78: ... and does not allow an increase in noise level and vibration A place where the operation noise and discharged air do not disturb your neighbors A place which is not exposed to a strong wind A place free of a leakage of combustible gases A place which does not block a passage When the outdoor unit is to be installed in an elevated position be sure to secure its feet The allowable length of the conn...

Страница 79: ... diameter and drain off the water For the position where the drain nipple is installed refer to the installation diagram of the indoor and outdoor units Check that the outdoor unit is horizontal and route the drain hose at a downward sloped angle while ensuring that it is connected tautly Base plate Drain nipple Commercially available drain hose Do not use ordinary garden hose but one can f atten ...

Страница 80: ... the Ev indoor unit using a v refriger acuum pump Do not use the ant in the outdoor unit For details see the manual of the vacuum pump Using 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 conditioner when the pump stops If oil inside of the vacuum pump enters into the air conditioner which...

Страница 81: ...e at gas side Service port Valve core Setting pin Vacuum pump Vacuum pump adapter for counter f ow prevention Charge hose Handle Hi Keep full closed Manifold valve Pressure gauge Compound pressure gauge Handle Lo Charge hose Connecting pipe 101 kPa 76 cmHg KEEP IMPORTANT 6 POINTS FOR PIPING WORK 1 Take away dust and moisture inside of the connecting pipes 2 Tighten the connections between pipes an...

Страница 82: ... edbythematchingnumbersontheterminal block of indoor and outdoor unit 3 Insert the power cord and the connecting cable carefully into the terminal block and secure it tightly with screws 4 Use vinyl tape etc to insulate the cords which are not going to be used Locate them so that they do not touch any electrical or metal parts 5 Secure the power cord and the connecting cable with the cord clamp 6 ...

Страница 83: ...er cord Earth line Earth line Connecting cable Terminal block Power Supply Input at Indoor Unit Terminal Block Optional Indoor Unit Outdoor Unit Power supply cable connect to L N Terminal block L N 1 2 3 Earth line Power supply cable Power supply cable Stripping length of the power supply cable N L Earth line 50 mm 10 mm 70 mm 10 mm Connecting cable Earth line Connecting cable Terminal block Conne...

Страница 84: ...tion may cause some electrical part burn out 8 Incorrect or incomplete wiring is carried out it will cause an ignition or smoke 9 This product can be connected to main power supply Connection to fixed wiring A switch which disconnects all poles and has a contact separation at least 3mm must be incorporated in the fixed wiring CAUTION Indoor Terminal Block Indoor Terminal Block Power supply input P...

Страница 85: ...ied out it will cause an ignition or smoke 9 This product can be connected to main power supply Connection to f xedwiring Aswitchwhichdisconnectsallpolesandhasacontactseparationatleast3mm must be incorporated in the f xedwiring CAUTION Indoor Terminal Block Power input Outdoor Terminal Block Power supply input Wiring Diagram for Inverter Multi System IMS Power input at Outdoor Terminal Block CHASS...

Страница 86: ...setting Both are set to A setting in factory shipment The remote control signal is not received when the settings of indoor unit and remote control are different There is no relation between A setting B setting and A room B room when connecting the piping and cables To separate using of remote control for each indoor unit in case of 2 air conditioner are installed near Remote Control B Setup 1 Pre...

Страница 87: ...heck service as the electric shock may be caused in case of touching parts on the P C board by hand The new inverter will be incorporated starting with this unit No 1 2 3 4 5 Troubleshooting Procedure First Confirmation Primary Judgment Judgment by Flashing LED of Indoor Unit Self Diagnosis by Remote Controller Judgment of Trouble by Every Symptom No 6 7 8 9 10 Troubleshooting Procedure How to Che...

Страница 88: ...t parts without first turning off the power At times such as when the circuit board is to be replaced place the circuit board assembly in a vertical position Laying the board flat on an electrically conductive object such as the top panel of the air conditioner s outdoor unit while a charge is still retained by the electrolytic capacitors of the inverter s main circuit may cause short circuiting b...

Страница 89: ...60µF 400V on P C board and then perform discharging Fig 11 3 CAUTION A high voltage equivalent to the supply voltage is also energized to ground through the sensors PMV and other low voltage circuits The sensor leads and other wires are covered with insulated tubes for protection Nevertheless care must be taken to ensure that these wires are not pinched Take sufficient care to avoid directly touch...

Страница 90: ...erated Increasing of compressor motor speed stops approx 30 seconds after operation started and then compressor motor speed increases again approx 30 seconds after In AUTO mode the operation mode is changed In HEAT mode the compressor motor speed does not increase up to the maxi mum speed or decreases before the temperature arrives at the set temperature Description The OPERATION lamp of the indoo...

Страница 91: ...em B and a part of item E occur concurrently priority is given to the block of item B 3 The check codes can be confirmed on the remote controller for servicing OPERATION Flashing display 1 Hz OPERATION TIMER Flashing display 5 Hz OPERATION Flashing display 5 Hz OPERATION TIMER White Flashing display 5 Hz OPERATION Flashing display 5 Hz Protective circuit operation for indoor P C board Protective c...

Страница 92: ...umeric characters are used for the check codes Fig 11 4 1 is 6 is 5 is A is C is B is D 1 If thelamps are indicated as shown B to E in Table 11 4 1 execute the self diagnosis by the remote controller 2 When the remote controller isset to the service mode the indoor controller diagnosesthe operation condition and indicatesthe in formation of the self diagnosison the display of the remote controller...

Страница 93: ...m Operation Flashes when 1 Check the sensor TA and connection board temperature sensor is continues error is detected 2 In case of the sensor and its short Circuit or disconnection connection is normal check the P C board TC sensor The heat Operation Flashes when 1 Check the sensor TC and connection exchanger temperature continues error is detected 2 In case of the sensor and its sensor of the ind...

Страница 94: ...ard outdoor unit open 4 The outdoor unit abnormal stop at circuit of signal some time Signal circuit of indoor If the other check codes are found P C board or outdoor concurrently check them together P C board is failure Check protector hardware such in some period as Hi Pressure switch Thermal Relay etc Check refrigerant amount or any possibility case which may caused high temperature or high pre...

Страница 95: ... OFF Flashes after Even if trying to operate again all inverter P C board error error is detected operations stop replace inverter 4 times P C board All OFF Flashes after error is detected 4 times 1 Check sensors TE TS connection In case of sensors and it s connection is normal check the inverter P C board 2 Check 4way valve operation position In case TE TS detected temperature relationship are di...

Страница 96: ...or count comes 4 8 11 or 18 times record error to check code But after re starting operation if no error is detected and air conditioner can operate more than 6 minutes error count is cleared The others Return signal of the outdoor Indoor unit Flashes when including unit has been sent when operates error is detected compressor operation start But after continue Flashing stop that signal is stop so...

Страница 97: ...rror is detected 4 times 1 Check sensors TD 2 Check refrigerant amount 3 In case of P M V exists Check P M V by measure the resistance of the coil and confirm its operation sound of initial operation etc 4 Observe any possibility cause which may affect high temperature of compressor Compressor is high current All OFF Flashes after though operation Hz is error is detected decreased to minimum limit...

Страница 98: ...y using diode Measure voltage at terminal block of the indoor unit between No 2 and No 3 or L2 and S If signal is varied 15 60V continuously replace inverter P C board If signal is not varied replace indoor P C board 4 Check and clean heat exchanger area Indoor and Outdoor unit Instantaneous power failure Some protector hardware of the outdoor unit open circuit of signal Signal circuit of indoor P...

Страница 99: ... controller Is voltage DC5V 12V and 15V indicated on rear of indoor control board nor mal Does transmission mark on remote controller flash normally and is its signal transmitted properly Item by symptoms Operation Check Item Considerable principle cause Measures Remote controller is defective Refer to 5 Troubleshooting for remote controller Unit operates normally Replace main P C board Replace fa...

Страница 100: ...d is replaced Confirmation procedure YES YES NO NO Turn on power supply Does operation lamp flash Is it wired as shown in Figure below Return the wiring of the power relay is returned to the normal procedure To the paragraph of No Power turns on 100 ...

Страница 101: ...ck this condition within 15 seconds after starting unit Start to operate the indoor unit in except heating operation At this time is it possible to detect DC 1V or more between 5 and 3 of motor connector CN36 Is it possible to detect DC 311 340V between 1 and 3 of motor connector CN36 Motor connection condition Is it possible to detect DC 15V between 4 and 3 of motor connector CN36 Is it possible ...

Страница 102: ...ge airflow level to HIGH Is it possible to rotate cross flow fan by hand properly Fan motor operates normally Replace bearing of cross flow fan YES YES YES NO NO NO Does check cross flow fan bearing normal condition Replace indoor fan motor Replace main P C board Does check display on remote show high Change the new PC board Does fan speed change Replace remote Replace motor NO NO NO YES YES YES 1...

Страница 103: ...ove the cover of the fan motor lead wires 3 Check DC voltage with CN36 connector while the fan motor is rotating NOTE Do not disconnect the connector while the fan motor is rotating Use a thin test rod Indoor fan starts rotating when power supply is turned on Check output DC voltage of fan motor on P C board Measure voltage between 3 GND BLACK and 5 V line YELLOW of motor connector CN36 while indo...

Страница 104: ...g within 5 cm distance from the radio P C board is failure Replace P C board Is operation possible when the transmitter is moved nearer to the infrared signal receiver of the air conditioner Battery life Replace the batteries Dose the transmission indicator light Is there any beep and operation Normal Remote control is failure Replace remote control Push the button YES There is no beep from the in...

Страница 105: ...onds after starting of the operation Be sure to prepare a diode for judgment Normal time Voltage swings between DC15 and 60V Inverter Assembly check 11 7 1 Abnormal time Voltage does not vary 2 Outdoor unit stops in a little while after operation started Check procedure Select phenomena described below 1 The outdoor unit stops 10 to 20 minutes after operation started and 10 minutes or more are req...

Страница 106: ...ow Is connector of coil connected to inverter Is coil of the pulse motor valve P M V correctly set Check condensation at outlet of P M V If there is condensation at outlet 1 4 inch Ø6 35mm valve side the valve is clogged If there is no P M V Skip this step Are temp sensors of indoor outdoor units correctly set to the holder NOTE The temperature sensors include indoor heat exchanger sensor TC outdo...

Страница 107: ...rminals of the electro lytic capacitor 760µF of C09 C10 with printed WARNING ELECTRIC SHOCK on P C board OK if 760µF DC280 to 380V Remove CN300 while pushing the part indicated by an arrow because CN300 is a connector with lock Resistance between phases should be approx 33 7 1 7Ω RAS 18k 22k 18 8Ω RAS 24k Should be 100MΩ or more Replace outdoor fan motor Remove connector of compressor NG NG NG NO ...

Страница 108: ...ont panel or the P C board be sure to shut off the power supply breaker 2 When removing the P C board hold the edge of the P C board and do not apply force to the parts 3 When connecting or disconnecting the connectors on the P C board hold the whole housing Do not pull at the lead wire 2 Inspection procedures 1 When a P C board is judged to be defective check for disconnection burning or discolor...

Страница 109: ...01 line filter L01 resistor R03 or the diode DB01 is defective 3 IC11 IC15 C117 and T 01 are defective 4 IC11 IC14 C112 and T 01 are defective IC52 and IC53 are defective The indicators are defective or the housing assembly CN10 is defective 1 The temperature of the indoor heat exchanger is extremely low 2 The connection of the heat ex changer sensor is loose The connector is disconnected CN62 3 T...

Страница 110: ...e k Temperature C TA TC TCJ TO TS TE TD 1 Sensor characteristic table 11 8 2 P C Board Layout TD Discharge temp sensor TA Room temp sensor TC TCJ Heat exchanger temp sensor TO Outdoor temp sensor TS Suction temp sensor TE Outdoor heat exchanger temp sensor 5V GND 12V 110 ...

Страница 111: ...5 Outside air temp sensor TO Discharge temp sensor TD Suction temp sensor TS Exchanger temp sensor TE SQ A2522G 000352 2210 221Ω 33 7 1 7Ω Resistance value Position 1 02Ω 1 1Ω Position White Red Black Measure the resistance value of each winding by using the tester Red White Black Measure the resistance value of winding by using the tester Measure the resistance value of winding by using the teste...

Страница 112: ...show in continuity test by the tester 2 Converter module 1 Turn OFF the power supply breaker 2 Discharge all three capacitors completely 3 Check that the normal rectification characteristics are shown in continuity test by the tester No Part name Checking procedure Diode check 1 2 Tester rod Resistance value in good product 50kΩ or more 0Ω in trouble 1 2 3 DB01 4 3 4 1 2 3 1 4 4 2 3 Case that prod...

Страница 113: ...nside of the outdoor fan motor 4 Motor drive circuit failure of the outdoor P C board 3 How to simply judge whether outdoor fan motor is good or bad NOTE However GND circuit error inside of the motor may be accepted in some cases when the above check is performed When the fan motor does not become normal even if P C board is replaced replace the outdoor fan motor If the resistance value between 1 ...

Страница 114: ...ring welding equipment near flammable objects Flames from the equipment may cause the flammable objects to catch fire If keeping the power on is absolutely unavoidable while doing a job such as inspecting the cir cuitry wear rubber gloves to avoid contact with the live parts Electric shocks may be received if the live parts are touched High voltage circuits are contained inside this unit Proceed v...

Страница 115: ...ff its main power supply 2 Open two screw caps and securely remove screws 2 pcs at the front panel 3 Take off the hooks of front panel from top side of the back body 4 Slightly open the lower part of the front panel then pull the upper part of the front panel toward you to remove it as shown on figure 3 Front panel Back body Hooks of front panel Air filters Screw cap Front panel Screw Screw Air in...

Страница 116: ...h screw and earth line from evaporator Pull out TC and TCJ sensor from sensor holder of the evaporator Remove the 2 fixing screws that secures the electric parts box assembly unit display assembly and remove the electric parts box assembly Earth screw Earth line Washer Electric part cover Screw Connectors Screw Screw Unit display Electric parts box 116 3 L 2 1 N Fan motor connector Louver motor co...

Страница 117: ...w figure Hexagon screw driver Vertical louver Cross flow fan Screws Fan motor Motor band 4 5 Fan motor connector Fan motor wire Horizontal louver Drain pan Drain pan Drain hose 1 Follow the procedure item 3 2 The drain hose can be removed by removing the screw securing the drain hose and then pulling out the drain hose 3 When removing the drain hose be careful of any sharp edges of steel plate The...

Страница 118: ... or not remove drain hose following Not remove drain hose Pulling out the drain pan from back body then holding the drain pan with main unit Remove drain hose Drain hose can be removed follow the procedure item 7 After that remove the drain pan from main unit 1 Follow the procedure item 3 2 Remove screw holding the electric part cover 3 Disconnect the louver motor connector 5P from P C board assem...

Страница 119: ... it from the main unit 11 Caution at assembling If the bearing is out from the housing push it into the specified position then incorporate it in the main unit Bearing base Bearing Cross flow fan Heat exchanger Cross flow fan 12 1 Follow the procedure item 9 and 11 2 Loosen the set screw of the cross flow fan Vertical louver Hexagon screw driver Cross flow fan 3 Lift up the heat exchanger follow t...

Страница 120: ...he heat exchanger to upper side 13 Screws Heat exchanger Heat exchanger Pipe holder Screw Screw Heat exchanger 3 5 mm Cross flow fan Set screw Fan motor Body back Holding the set screw install the cross flow fan so that flat area on shaft of the fan motor comes to the mounting hole of the set screw Back body To re installation Keep the back body horizontally and put the heat exchanger carefully to...

Страница 121: ...urn the power supply off to stop the operation of air conditioner 2 Remove the front panel Remove the 2 fixing screws 3 Remove the electrical part base Remarks Replace terminal block microcomputer ass y and the P C board ass y Microcomputer 121 ...

Страница 122: ...er 2 Front cabinet 1 Detachment 1 Perform step 1 in 1 2 Remove the fixing screws S 2TØ4 10L 2 pcs used to secure the front cabinet and inverter cover the screws ST2TØ4 10L 4 pcs used to secure the front cabinet at the bottom and the fixing screws ST2TØ4 10L 2 pcs used to secure the motor base The front cabinet is fitted into the sid cabinet left at the front left side so pull up the top of the fro...

Страница 123: ...ble type in some cases 4 Remove screw ST2TØ4 x 10L 4pcs fixing the terminal part of inverter box to the main body 5 Remove the front cabinet by performing step 1 in 2 and remove the fixing screws ST2TØ4 x 10L for securing the main body and inverter box 6 Remove various lead wires from the holder at upper part of the inverter box 7 Pull the inverter box upward 8 Disconnect connectors of various lea...

Страница 124: ...sconnect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the spacer Remove the heat sink and control board assembly while keeping them screwed together 3 Remove the two fixing screws used to secure the heat sink and control board assembly 4 Mount the new control board assembly NOTE When mounting the new c...

Страница 125: ...e bottom plate and heat exchanger 6 Fan motor 1 Perform work of item 1 of 1 and 2 2 Remove the flange nut fixing the fan motor a the propeller Flange nut is loosened by turning clockwise To tighten the flange nut tur counterclockwise 3 Remove the propeller fan 4 Disconnect the connector for fan motor from the inverter 5 Remove the fixing screws 3 pcs holding by hands so that the fan motor does not...

Страница 126: ...e compressor from the terminal 6 Remove pipe connected to the compressor with a burner 7 Remove the ﬁxing screw of the bottom plate and heat exchanger ST2TØ4 10L 1 pc 8 Remove the ﬁxing screw of the bottom plate and valve ﬁxing plate ST2TØ4 10L 1 pc 9 Pull upward the refrigeration cycle 8 Reactor 1 Perform work of item 1 of 2 and 3 2 Remove screws fixing the reactors ST2TØ4 10L 2 pcs Compressor Re...

Страница 127: ...ront cabinet Push the hooking claws 9 positions by hands and fix the claws Minus screwdriver Hooking claw BODY PMV COIL PMV Rotate 180 Check that all the hooking claws are fixed to the specified positions 1 Detachment 1 Perform step 1 in 2 all the steps in 3 and 1 in 5 2 Remove the coil by pulling it up from the electronic control valve body 2 Attachment 1 When assembling the coil into the valve b...

Страница 128: ...the heat exchanger CAUTION During the installation work and on its completion take care not to damage the coverings of the sensor leads on the edges of the metal plates or other parts It is dangerous for these coverings to be damaged since damage may cause electric shocks and or a fire CAUTION After replacing the parts check whether the positions where the sensors were installed are the proper pos...

Страница 129: ...ain water etc from entering inside the indoor unit 2 Attach the upper cabinet ST1TØ4 10L 5 pcs 3 Perform cabling of connecting cable and attach the cord clamp Fix the cord clamp by tightening the screws ST2TÆ 4 x 14L 3 pcs fitting 2 concave parts of the cord clamp to each connecting cables 4 Attach the valve cover ST2TÆ 4 x 10L 2 pcs Insert the upper part into the square hole of the side cabinet s...

Страница 130: ...abinet is fitted into the side cabinet left at the front left side so pull up the top of the front cabinet to remove it 2 Attachment 1 Insert the claw on the front left side into the side cabinet left 2 Hook the bottom part of the front right side onto the concave section of the bottom plate Insert the claw of the side cabinet right into the square hole in the front cabinet 3 Return the screws tha...

Страница 131: ... trouble type in some cases NOTE This capacitor is one with mass capacity Therefore it is dangerous that a large spark generates if short circuiting between Requirement As each connector has a lock mecha nism avoid to remove the connector by holding the lead wire but by holding the connector The connector is one with lock so remove it while pushing the part indicated by an arrow Be sure to remove ...

Страница 132: ...sconnect prevention mechanism as such the lock on their housing must be released before they are disconnected 2 Remove the control board assembly from the spacer Remove the heat sink and control board assembly while keeping them screwed together 3 Remove the two fixing screws used to secure the heat sink and control board assembly 4 Mount the new control board assembly NOTE When mounting the new c...

Страница 133: ...nd heat exchanger Remarks Detail A Detail B Detail C 1 Perform work of item 1 of and 2 Remove the flange nut fixing the fan motor and the propeller Flange nut is loosened by turning clock wise To tighten the flange nut turn counterclockwise 3 Remove the propeller fan 4 Disconnect the connector for fan motor from the inverter 5 Remove the fixing screws 4 pcs holding by hands so that the fan motor d...

Страница 134: ...ith a burner Take care to keep the 4 way valve away from naked flames Otherwise it may malfunction 7 Remove the fixing screw of the bottom plate and heat exchanger ST2TØ4 10L 1 pc 8 Remove the fixing screw of the bottom plate and valve fixing plate ST2TØ4 10L 2 pcs 9 Pull upward the refrigeration cycle 10 Remove NUT 3 pcs fixing the compres sor to the bottom plate Remarks Reactor 1 Perform work of...

Страница 135: ...n guard in the holes of the front cabinet Push the hooking claws 9 positions by hands and fix the claws Check that all the hooking claws are fixed to the specified positions BODY PMV COIL PMV Rotate 180 1 Detachment 1 Perform step 1 in 2 all the steps in 3 and 1 in 5 2 Remove the coil by pulling it up from the electronic control valve body 2 Attachment 1 When assembling the coil into the valve bod...

Страница 136: ...the heat exchanger CAUTION During the installation work and on its completion take care not to damage the coverings of the sensor leads on the edges of the metal plates or other parts It is dangerous for these coverings to be damaged since damage may cause electric shocks and or a fire CAUTION After replacing the parts check whether the positions where the sensors were installed are the proper pos...

Страница 137: ...EFRIGERATION CYCLE ASSY FOR RAS B24J2KVSG E N4KVSG E HOLDER SENSOR PIPE SHIELD HOLDER PIPE PLATE INSTALLATION TERMINAL COVER ASSY WIRELESS REMOCO HOLDER REMOTE CONTROL CORD MOTOR LOUVER RIGHT CORD MOTOR LOUVER LEFT CORD MOTOR LOUVER HR PACKING SLEEVE PACKING CUSHION RIGHT PACKING CUSHION LEFT 218 43T39384 FRONT PANEL ASSY FOR RAS 18 B22J2KVSG E N4KVSG E FRONT PANEL ASSY FOR RAS B24J2KVSG E N4KVSG ...

Страница 138: ...43T62340 405 43T6W727 407 43T60502 406 43T6W721 408 43T50306 TEMPERATURE SENSOR TERMINAL 5P TF SENSOR THERMOSTAT CORD CLAMP PC BOARD ASSY WRS LED PC BOARD ASSY FOR RAS 18J2KVSG E N4KVSG E PC BOARD ASSY FOR RAS B22J2KVSG E N4KVSG E PC BOARD ASSY FOR RAS B24J2KVSG E N4KVSG E HOUSING WiFi TEMPERATURE SENSOR FOR RAS B22 B24J2KVSG E N4KVSG E Description Description 138 ...

Страница 139: ...NET RIGHT CABINET ASSEMBLY UPPER CABINET ASSEMBLY FRONT CABINET ASSEMBLY FIXING PLATE VALVE MOTOR BASE CONNECTION PLATE GUIDE WIND PARTITION ASSEMBLY MOTOR BASE FAN GUARD PROPELLER FAN DRAIN NIPPLE PACKED VALVE COVER ASSEMBLY HOLDER SENSOR CAP WATERPROOF CONDENSER ASSEMBLY COMPRESSOR BONNET 6 35 DIA BONNET 12 7 DIA 84 43T04358 VALVE PACKED 6 35 DIA VALVE PACKED 12 7 DIA BODY PMV COIL PMV 4 WAY VAL...

Страница 140: ...KED 12 7 DIA BODY PMV COIL PMV 4 WAY VALVE COIL 4WAY REACTOR MOTOR FAN LEAD ASSY COMPRESSOR NUT FLANGE CUSHION RUBBER NUT FLANGE CARTON BOX FIBERBOARD UNDER ASSEMBLY CUSHION PACKING UPPER PE SHEET INSULATION SOUND INSIDE INSULATION SOUND OUTSIDE SOUND INSULATION UP 37 43T47405 BASE PLATE ASSEMBLY LEFT CABINET RIGHT SIDE CABINET ASSEMBLY UPPER CABINET FRONT CABINET FIXING PLATE VALVE MOTOR BASE CON...

Страница 141: ...o No 701 43T62351 707 43T50352 702 43T6W708 708 43T50360 702 43T6W709 709 43T62313 703 43T60392 710 43T63318 704 43T60326 711 43T63316 705 43T50353 712 43T63317 TEMPERATURE SENSOR TC SENSOR TO PC PLATE BASE HOLDER SENSOR HOLDER SENSOR HOLDER SENSOR 706 43T50334 HEATSINK PC BOARD ASSY FOR RAS 18J2AVSG E PC BOARD ASSY FOR RAS 22J2AVSG E TERMINAL 5P FUSE TEMPERATURE SENSOR TEMPERATURE SENSOR Descript...

Страница 142: ...tion Part Location Part No No No No 701 43T67310 707 43T50352 702 43T6W710 708 43T50360 703 43T60392 709 43T62313 704 43T60326 710 43T63318 705 43T50353 711 43T63316 706 43T50334 HEATSINK PC BOARD ASSY TERMINAL 5P FUSE TEMPERATURE SENSOR TEMPERATURE SENSOR 712 43T63317 TEMPERATURE SENSOR TC SENSOR TO PC PLATE BASE HOLDER SENSOR HOLDER SENSOR HOLDER SENSOR Description Description 142 ...

Страница 143: ...144 9 MOO 5 BANGKADI INDUSTRIAL PARK TIVANON ROAD TAMBOL BANGKADI AMPHUR MUANG PATHUMTHANI 12000 THAILAND ...

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