RAC-08EW-E
Contents
1. Protection Winding resistance Red Black White Black Red White at 68 F 4 55 8 55 13 1 LO L c ram 11 2 7 Unit Repeats Operation Frequently Operations Check items Major possible causes Remedies Does the compressor repeat ON OFF opertion ltem by Measure the running Normal Over current current Does the fan motor repeat operation Normal operation High Normal In case the gas temp and the running current are high Measure the gas temperature 90 C 105 C discharge Heat exchange of the Setting of the Control PCB ass y is condenser is faulty thermostat is faulty faulty Correct it Condenser water Condenser air N 2 122 18 11 2 8 Operable But Abnormal or insufficient cooling drying Major possible NO causes Remedies Item by symptom Can the following temperature difference between inlet and outlet air be obtained Cooling 14 to 18 F Drying 23 to 27 F Is the filter blocked Clean the filter NO Not blocked Is the fan speed at HIGH No Set it to HIGH YES Isn t the cooling load excessive In case of insufficient gas re2. Remedies ltem by symptom Normal voltage value Polarity Polarity 9 Condition Q02 E Pin 2 of RY01 When each 12V Pin 2 of RYO2 relay is ON Pin 2 of 03 Check power supply for Fan motor gt Relay is Points to which multimeter probes applied Connector Note Normal voltage value Check the relays with Condition the fan motor When each 220 230 240 is YES MF capacitor Replace MF YES is faulty capacitor NO Points to which multimeter probes are applied No TUE Polarit Polarit Nolmal resistance is faulty 2 Condition value Disconnect WHITE fan motor ORANGE lead wire ORANGE 15 11 2 5 Compressor Does Not Operate lt Precheck gt 1 Is room temperature control on the control panel higher than room temperature in cool mode 2 Is the MODE selector knob on the control panel left set to FAN ONLY Checking Procedures Turn power ON Does operation lamp on remote controller flash YES Does operation lamp come on normally NO YES Does power relay RY07 change over Points to which multimeter probes are applied Normal voltage and GND See item power turns voltafge of connector 2 GND DC Voltage between CN02 P
3. 5 FILE 00 9607 SERVICE MANUAL ROOM AIR CONDITIONER 1 SPECIFICATIONS net entire 3 2 SPECIFICATIONS OF ACCESSORIES 3 REARANE 4 A SPECIFICATIONS OF ELECTRICAL PARTS Ne 4 5 WIRING DIAGRAM 0 12 0 01002000000000000000000000 00 00001 5 6 COOLING CHARACTER CHART tekent 6 7 REFRIGERATING CYCLE mter mexicana 7 8 8 9 OPERATION DESCRIPTIONS Ne 9 9 1 Operation Control Knobs on Control Panel pp 9 10 OUTLINE OF OPERATIONS unt oin EE 10 10 1 Basic 019 10 1 10 10 22 Economy Ajo ENE 10 10 3 Diy MOOO essi AS A fanny 11 10 4 Economy Rm 11 11 TROUBLESHOOTING CHART diktes 12 41 1 Whata De Prechecked Fisi enesenn 12 11 2 How to Judge Faulty Parts by Symptoms pp 13 11 59 PGJBoard LayOUt tente eden tue Fede need et bx roc E 22 12 INSTALLATION INSTRUCTION RN 24 12 1 Installation deu 24 12 2 Routine Maintenance sse 24 12 3 04 oe
4. PH94X1 4G1 Winding resistance Red Black White Black Red White Q at 20 C 4 55 8 55 13 1 Fan motor Single phase 50 Hz 230V AC 20W output STF 230 20 4C Winding resistance Red Black Orange Blue Black Orange Black Orange Q at 20 C 4111 205 0 145 9 102 5 Running capacitors EARU40M206UF 400 20 for compressor EEP2H105HWNB05 500V 1uF for fan motor Relay AJE6412 250 for fan motor PC12D2 250V 15 for compressor Float switch FS 085 002F Rated current 0 1A 100V DC Transformer FT67 2 Primary 220V 240V Secondary 12 3V 13 6V Microcomputer TMP47C440AN Room temperature sensor Ta sensor Microcomputer Differential 2 C Adjustable range 17 28 Heat exchanger sensor Tc sensor Microcomputer Differential 2 Power supply cord with plug Copper wire minimum 1 0 mm Fuse 6 3A 5 WIRING DIAGRAM RAC 08EW E HEAT THERMO SENSOR EXCHANGER FLOAT ROOM TEMPERATURE SENSOR SWITCH CONTROL PC BOARD OPERATION PANEL 21911 BOARD Z VARISTOR SURGE ABSORBER win SINGLE CAPACITOR 50Hz 220 230 240V 81 GRN amp YEL _ Color Identification RUNNING CAPACITOR COMPRESSOR FAN MOTOR RED GRAY BROWN WHITE BLAC
5. 9 E 5 5 2 Compensation for fan indicator Lo 18 motor E 1 1 1 E Timer 5 indicator Processing 9 Temperature processing Warning indicator 5 Timer selector i j 1 CONTINUE jak Timer setting Airflow selection Fan selector High C P U Low AUTO 1 n 9 Temperature setting 5 5 5 6 5 E 5 Economy selection O T lt 9 9 E 8 LL L 1 Remote control i L To ONT Sensor AC 50H Heat exchanger sen Transformer _ idt 240V Y Power relay Relay driver Control IE Compressor Fan motor Abold line denotes 220 230 240V line 9 OPERATION DESCRIPTIONS 9 1 Operation Control Knobs on Control Panel MODE knob TIMER knob Use to select the operation mode Set to a desired time COOL DRY or FAN ONLY FAN SPEED knob THERMO knob The AUTO position automatically The scale gives just a rough mesure changes the fan speed according t
6. One core for grounding 1 9 m 6 4 ft length with plug Accessories Specifications are subject to change without notice Item Exhaust hose Caster seat Exhaust hole Cap for exhaust hole 2 SPECIFICATIONS OF ACCESSORIES Remarks Exhaust hose Caster seat Exhaust hole lt gt for exhaust hole Caster seat Exhaust hole for exhaust hole 3 E 7 315mm 12 4 switch Sub Wind direction s control grille 800 19 7 in Operation switch horizontal ON OFF Back cabinet Control panel Handle Front panel E a Air outlet Water tank Holder of Wind direction power control grille Vertical Front door Power 220 240V 3 420mm 16 5 in 0 230 7 406 94 9 1in 1 9 6 4ft 4 7 in Fig 3 1 4 SPECIFICATIONS ELECTRICAL PARTS Parts name Type Specifications Air filter Air inlet Connector of exhaust hose Case of hose Drain hose Compressor Single phase 50 Hz 220 230 240V 750W output
7. 1 When I O button is pushed the relays RYO1 This control mode establishes some zones corre RY02 RYO3 and power relay 07 start ac sponding to different combinations of on and off in cording to the conditions set by FAN SPEED knob tervals of the compressor and selects a suitable zone selector switch Thus the indoor fan motor and depending on the lapse of time from the start of op compressor are controlled Operations as de eration and the temperature scribed in this paragraph are all programmed And following items are same as it lt 2 When I O button is pushed again relays 3 C 5 5 5 all disabled and the air conditioner stops Room 2 3 When the I O button is pushed with the timer set 1 pi B at any desired time the relays are all disabled 5 5 5 and the conditioner stops when the timer Setting temp reaches the set time However if the operation 1 JA is started with the timer set to CONTINUE the when room temperature operation continues 22 the 4 adjust the room temperature set the knob gt Time mounted on the control panel at desired ture The room temperature sensor detects and Fig 10 1 controls the adequate temperature 5 When the FAN SPEED selector switch is set to Table 10 1 During cooling AUTO the volume of air is controlled to be felt Lapse from agreeable start Compressor ON OFF 18 4 minutes ON OFF 3
8. 4 minutes ON OFF 5 7 minutes ON OFF 3 7 minutes ON OFF 5 10 minutes ON OFF 3 10 minutes 0 to 1 hour 1 to 2 hours 2 hours Table 10 2 During drying Lapse from start Compressor ON OFF 5 4 minutes ON OFF 3 4 minutes ON OFF 5 7 minutes ON OFF 3 7 minutes ON OFF 5 10 minutes ON OFF 3 10 minutes to 1 hour 1 to 2 hours 2 hours 10 10 3 Mode In this mode microcomputer control lowers humid ity while maintaining a constant temperature The microcomputer turns the compressor on and off at regular intervals 3 to 6 minutes on and or off Dur ing the halt the airflow fan stops as well 6 a b minutes Compressor Stop Stop Stop 1 1 1 1 1 1 1 Airflow Ew ES Low Stop Stop Stop Room temperature TA measurement timing Time The compressor and airflow will operate indepen dent of the temperature control though the pattern of operation depends on the relation between room temperature TA and set temperature Ts as shown below Table 10 3 Relation between room temp TA and set temp Ts Stop TA gt Ts 2 Ts 2 gt gt Ts TS gt Stop The airflow fan will operate in the Low position independent of the position of the airflow setting control Fig 10 2 10 4 Econom
9. 43097200 43082263 Cap Water Tank Exhaust Hose Cap Exhaust Hole Exhaust Hole Owner s Manual Cord Band Control Panel H Louver Tamper Proof Screw Screw Driver Tamper Proof Screw Part No Description Part No Description 43058255 43055420 43060064 43050341 43050340 43068439 43031090 43034070 43033197 Transformer FT67 2 Capacitor Electrolytic Cord Power Thermo Sensor Sensor Heat Exchanger PC Board Assembly Diode Block Relay Miniature JE X Capacitor Electrolytic 28 43055359 43035573 43031043 43034036 43060899 43055462 43055284 43055508 Toshiba Nonlinear Resistor Surge Absorber TR 28D880Y Relay Power Fuse Capacitor EEP Series Toshiba Nonlinear Resistor Capacitor CK 8 CNOMWHI 1 CNDG 15 OLI E i 4 2 8 o SR wo 5 SS 2 c31 c30 9 02 010 E VW lt 007 89 702 04 TOSHIBA COMPONENT SIDE GCMK C1X ean Description Part Description No 43058255 Transformer 67 2 43033197 Capacitor Electrolytic 43055420 Capacitor Electrolytic 43055359 Toshiba Nonlinear Resistor 43060064 Cord Power 43035573 Surge Absorber 43050341
10. Troubleshooting procedures Following the details of What to be prechecked first make sure of the basic items When there is no trouble corresponding to above check in detail the faulty parts following How to judge faulty parts by symptoms later 11 1 What to be Prechecked First 11 1 1 Power Voltage The power voltage must be from AC 198V to 264V If the power voltage is not within this range the air con ditioner may not work normally 11 1 2 Operations not Regarded as Failure Program Operation In terms of the control of air conditioner the opera tions shown in Table 11 1 are made as a program operation incorporated in a microcomputer If a claim is made about the operation check it corresponds to the contents in Table 11 1 If it does it is an indis pensable operation for the control and maintenance Operations which are not deemed trouble Operation of air conditioner of the air conditioner but not a failure of the units Table 11 1 Description When the POWER plug socket of the unit is inserted the operation lamp on the control panel flashes The operation lamp flashes indicating that power is turned on If this happens push the button once and flash will stop Power failure also causes the same lamp to flash Room temperature is in the range under which the compressor is turned on and the operation lamp is lighting but the compressor will not start The compressor wi
11. eee 24 12 4 Changing of Water 25 12 5 gre tabac ed sedere aed 25 13 CLEANING METHOD OF CONDENSER 26 13 1 Condenser Servicing Procedures pp 26 14 EXPLODED VIEWS AND PARTS LIST 27 Note CONTENTS A special tool is required to remove the back cabinet In EXPLODED VIEWS AND PARTS LIST Location No 256 Screw Driver 1 SPECIFICATIONS RAC 08EW E Dimensions Height 720 Width 500 Depth 315 Net weight 35 Power source Frequency 50 Rated voltage 1 phase 220 230 240 Standard performance Cooling capacity 2 10 2 18 2 18 Airflow high 390 400 410 Moisture removal 1 2 Electrical characteristics Running current 3 82 3 80 3 85 Power consumption 780 800 840 Power factor 93 92 91 Compressor Model output 94 1 401 750W Condenser Ripple tube type Forced air ventilation Finned tube type Aircooled ventilation Evaporator Finned tube type Aircooled ventilation Safety devices Float switch Over current relay Fan motor for indoor and exhaust 20W Induction motor Refrigerant R 22 Charged quantity 0 47 kg Air filter Polypropylene net filter Power cord 3 core
12. 25 13 CLEANING OF CONDENSER 13 1 Condenser Servicing Procedures 1 Pull out the air filter 2 Remove six screws at the back and take off the rear panel Also pull out the drain hose from case of hose Fig 13 1 3 Open the front door and remove the tank 4 Remove the inner cover screwed down at five spots Fig 13 2 5 Remove two screws fastening the condenser cover one in the front part and another in the rear gt T O Condenser cover Fig 13 3 Remove condenser cover by pulling ob liquely upward then the condenser will ex posed 7 When assembling follow the reverse procedures Condenser cover Fig 13 4 26 Part No 14 VIEWS AND PARTS LIST Description Part No Special tool Description 43000679 43008399 43003190 43000680 43080332 43019800 43000678 43007917 43007916 43079225 43079226 Front Panel Door Control Panel Cabinet Back Cabinet Air Filter Handle Door Front Magnet Catch Cover Hinge Tank Water Cap Water Tank ED 43079081 43089126 43089127 43089128 43088645 43069760 43068437 43009439
13. Fig 12 1 4 If exhaust hose is set with its down the water condensed within the hose might leak out of the room It is therefore recom mended to set the hose with its tip kept higher than the air outlet of the air conditioner prop erly 2 Puta seat under each caster 3 Electrical wiring Table 12 2 Model Power source 16 50 Hz RAC 08EW E 220 230 240 12 2 Routine Maintenance 1 Be sure to observe the following for a longer vice life of your air conditioner Cleaning of air filter Once every two weeks Changing of water in tank Once ever week 2 Be sure to drain out the water in tank during ev ery off season 12 3 Water Supply 1 The water in tank decreases gradually in the course of cooling operation 2 If the water is run out the warning lamp lights up in red and the operation mode is switched to blowing Then refill the water 3 Open the front door being down the tank toward you and lift off the tank Fig 12 2 24 12 4 Changing of Water 12 5 Relocation of Air Conditioner 1 Asthe water in tank becomes dirty gradually in 1 When you move the air conditioner be sure to cooling water change the water once every week drain out the water in tank first and do not lay down the air conditioner Drain hose Fig 12 3 2 The water in tank becomes 50 or so in cooling operation It is abnormal at all
14. K RED BLUE GREEN amp YELLOW ORANGE 6 COOLING CHARACTER CHART Cooling Capacity kW 2 7 2 6 2 5 24 2 3 2 2 Humidity 2 1 2 0 70 60 50 40 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 Ambient temperature Fig 6 1 7 REFRIGERATING CYCLE DIAGRAM RAC 08EW E Delivery tube an n Eun Sub condenser air Main condenser Water Capillary tube LD 1 2 mm O D 2 04 mm ressor Length 400 mm Evaporator Suction tube LD 6 8 mm O D 8 0 mm Fig 7 1 RAC 08EW E Table 7 1 Surface temp of heat exchanger Ambient temp Conditions interchanging pipe C conditions DB WB C Ti T2 Indoor Outdoor Standard 10 50 27 19 35 24 Cooling High temperature 17 57 32 23 43 26 Low temperature 5 34 21 15 21 15 Note Measure the heat exchanger temperature at the center of U bend By means of thermistor thermometer 8 MICROCOMPUTER BLOCK DIAGRAM is i Functions 1 Cool Dry Fan only 43 e 3 minute delay at Restart for 5 co piessor Operation indicator
15. Thermo Sensor 43031043 TR 250880 43050340 Sensor Heat Exchanger 43034036 Relay Power 43068439 PC Board Assembly 43060899 Fuse 43031090 Diode Block 43055462 Capacitor EEP Series 43034070 Relay Miniature JE X 29 Part No Description Part No Drain hose Description 43022394 43022395 43022396 43022397 43020249 43072327 43022392 43022393 43020250 43020251 43049666 43072326 Casing Up Casing Low Case Fan Up Case Fan Low Fan Multi Blade Drain Pan Case Fan Exhaust Cover Fan Exhaust Fan Multi Blade Fan Water Cover Condenser Water Vessel 30 43051323 43070139 43019829 43079087 43063164 43089106 43011508 43069761 43021870 43039306 Switch Float Hose Water Caster Cap Cover Switch Seat Caster Cushion Sub Wire Saddle Motor AC 230V 50Hz Fan STF 230 20 4C Plate Blower Part No Description Part No Description 43041589 43044543 43043523 43043524 Compressor 94 1 4 1 Evaporator Condenser Condenser Air B 43095302 43007890 43063188 Cushion Rubber Holder Sensor TA Holder Sensor TC TOSHIBA CORPORATION 1 1 SHIBAURA 1 MINATO TOKYO 105 01 JAPAN
16. itch OFF wait 5 seconds and turn switch ON again Operations Check items Major possible causes Does operation lamp on control panel flash YES Remedies When the control panel I O button is turned ON does power go on Item by t symptom YES Normal NO Is 12V Q01 E DC5V Q02 E of voltage indicated on rear of control PC BOARD ASSY normal YES Is the DC voltage between pin 2 of CN06 control panel connector and GND 5V YES Control panel Control PCB ass y is faulty ass y is faulty 11 2 3 All Relays Do Not Work Checking Procedures Operations See item NO power turns on Check items Major possible causes Does operation lamp on control panel flash YES Remedies Is 12VDC 002 E voltage indicated on rear of control Item by PCB normal symptom Control PCB ass y is faulty Control panel ass y is faulty 14 11 2 4 Only Fan Does Not Work lt Precheck gt 1 Does fan rotate even in the cool mode and the fan only mode lt Checking Procedures gt Turn power ON Does operation on control flash YES Do relays RY01 RY02 RY03 change over Points to which multimeter probes are applied Operations Check items Major possible causes See items NO powerturns
17. ll not start while the compressor restart prevention timer three minute timer is actuated This applies also when power is turned on Fan speed remains unchanged when the fan speed knob is operated in the dry mode Fan speed is fixed at Low in the dry mode The indoor fan occasionally stops intermittently in the dry mode In the dry mode the fan operation is synchronized with the compressor As a result the fan is stopped when the compres sor is stopped The compressor will not switch on or off even when the Thermo control is operated in the dry mode In the dry mode the compressor goes on and off at regular intervals independent on the Thermo control Warning lamp is lit and no cold air comes out When water in the tank has been drained out stop the operation of the compressor for safety Fill the water in the tank Warning lamp blinks and no cold air comes out When the temperature in the freezing cycle high pressure side stop the operation of the compressor for safety Be sure that the exhaust port has plugged with something or water is not remain in the exhaust hose At the mode of fan only the economy lamp is not lit when the economy button is pushed In case of the fan only mode the economy lamp will not be lit since the economy control will not be performed The push button has not returned when the economy button is pushed The economy button is of lock type When the button is
18. o of the temperature setting room temperature During DRY and ECONOMY mode LOW is used regardless of the setting TIMER SELECT knob Upon expiry of the number of hours set using the TIMER knob the air conditioner starts operating if the knob is set at ON or stops operating if the knob is at OFF With the knob set at CONT the air conditioner continues operating regardless of the TIMER setting RAC 08EW E WARNING button Push this button to start the air conditioner push it again to stop it OPERATION This lamp will light up during the green COOL DRY or FAN ONLY operation It begins flashing if a power failure occurs ECONOMY This lamp will light up when you green push the ECONOMY button TIMER This lamp will light up when the yellow TIMER SELECT knob is set to ON or OFF ECONOMY button WARNING This lamp will light up when the red water in the tank runs out When Push this button to start the economy operation push it again to cancel the economy operation the tank is refilled the lamp will go off red lamp flashes during abnormal operation To turn off the lamp push the ON OFF button Waiting about five minutes push the button again the OPERATION lamp will light up and the air conditioner will start operating 10 OUTLINE OF OPERATIONS 10 1 Basic Operation 10 2 Economy Mode
19. olarity Polarity value 10 20 30 Condition e 1 4V 02 07 5 RY07 ON Is AC220 230 240V present across 1 2 of power relay RYOT YES Compressor is Power relay faulty 07 is faulty Replace Replace compressor power relay 1 4V 16 1 4V See relays do not work Room temperature sensor is faulty Replace power relay Operations Check items Major possible causes Remedies Item by symptom 11 2 6 Compressor Does Not Operate lt Precheck gt 1 Is the target room temperature specified by the remote controller assembly higher than current room perature in the cool mode 2 Are the wiring and contacts of connecting cables in a satisfactory condition Checking Procedure gt Check the power Is the voltage across terminals 1 2 220 230 240 Terminal RY07 relay PCB assembly Check items Major possible causes Can the running sound of the NO compressor be heard Remedies YES Item by symptom Isn t the starter condenser faulty YES Measure the current Measure the If 3 or 4 times the continuity of the rated current compressor continues for several If disconnected the seconds it means the compressor is faulty compressor is faulty Compressor is faulty
20. plenishment is according to the gas replenish procedure Explain the running conditions again using the instruction manual 19 Water Leaks Installation condition of the air conditioner is defective Dew condensation on the external body Causes 1 There is a moisture generating source in the room Note that even if a ventilation fan is not in operation if it is open to the outside the con dition is same as the one in operation 2 Air volume is remarkably reduced Air filter is blocked resulting in the reduction of air volume Lowfan operation causes the lowering of run ning voltage resulting in the reduction of air volume fthe voltage is in the range of 198 264V it is normal TN Water stays here 3 Window has been kept open while raining and after that cooling operation is started Onrainy days relative humidity may become as high as 9096 or higher If doors or windows are open to the outside close them 4 When a man goes in and out between a room with high humidity and one with low humidity Or in case there is no door between such rooms Evenifthere is no moisture generating source in the room where the air conditioner is in stalled in case people go in from and out to a room with high humidity frequently or in case there is no door between the rooms the si
21. pushed again the button is set to OFF and the button will come out The operation button will come out all the time since it is not of lock type D 11 2 How to Judge Faulty Parts by Symptoms One of the most important matters for the repair of air conditioners is accurate trouble analysis For this purpose it is required to make a correct judgement about the problem by asking user 11 2 1 Trouble Analysis Classification No power turns m CDunit is inoperable Totally inoperable L c All relays do not work 2 Breaker or fuse blows out At cooling and drying operations the 3 Only fan does not work compressor works but the fan does not run 4 Compressor does not operate Lamp flashes Trouble Fan is also inoperable analysis classification Some parts are inoperable 5 Compressor does not operate 6 Unit repeats ON OFF freguently Short cycles p 7 Cooling is not obtained or insufficient o 8 Drying is not obtained or insufficient Operable but abnormal 8 Water leaks Abnormal noise ig 11 2 2 No Power Turns Air Conditioner Does Operate lt Precheck gt 1 15 voltage to wall socket normal 3 Is water filled in the tank 2 Has cord plug fully sealed in the socket 4 Is timer set in timer mode Is timer select switch set to ON Checking Procedures Turn power sw
22. tu ation becomes the same 50 lt Abnormal Noise Symptom Intermittent noise as if something is fluttering in the wind Air blows in and out at the air discharge port Check if there an obstacle which hinders air flow to any extent Check whether the air filter is dirty or not Clean gt Evaporator Check whether the evaporator is dirty with dust or oil or not 21 11 3 Board Layout Top view 22 Bottom view 2 982 12 INSTALLATION INSTRUCTION Read the installation manual carefully before install ing the air conditioner The following items in table 12 1 are included as the accessories Table 12 1 Parts name Owner s manual Installation manual Exhaust hole Exhaust hose Caster seat Cap for exhaust hole 12 1 Installation Method 1 Insert the connection port round into the air con ditioner surely to its root 1 The exhaust hose may be extended or con tracted from approx 500 mm to approx 1 400 mm but use it in its shortest length if pos sible 2 Be careful that a U shaped bend or slack is not yielded in the way of exhaust hose 3 When you move the air conditioner be sure to pull out the exhaust hose and don t lay down the air conditioner Water stays here
23. y Operation 1 When the economy button is pushed the economy lamp is lit and the economy operation will start But this operation will not start in the mode of fan only 2 The economy operation with the cooling and dry modes will be performed in the manner as stated below 10 4 1 Cooling Operation 1 The compressor will be operated by means of ON OFF interval operation 2 The room fan will be controlled as stated below When compressor is turned L When compressor is turned off UL When monitoring OFF 3 An interval operation will be started from OFF time But when starting operation it will be kept in ON position for 6 minutes 10 4 2 Dry Operation 1 ON OFF interval operation both of the compres sor and fan will be performed At the OFF time both of the compressor and fan will be set to OFF 2 Wind capacity is of L 3 interval operation will be performed in gt Ts condition 10 4 3 Fan Operation 1 When operation change over switch is set to fan operation the economy operation shall not be executed And the economy lamp shall not be lit too Normal fan operation will be performed Ta A 18 min ON 5 min ON 5 min ON 3 4 OFF 7 OFF 10 OFF 2 3 3 3 1 4minOFF 7 10 min OFF Monitoring Compressor OFF Fan OFF 1 2 Time Fig 10 3 11 11 TROUBLESHOOTING CHART
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RAC 08EW E