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TECHNICAL & SERVICE MANUAL DC INVERTER

1. r 55 12 3 Tools Specifically for R410A aaan nennen nennen nennen nnne nn nnn nn nnn nnns 57 12 4 Tubing Installation Procedures nnns 57 12 5 In Case of Compressor Malfunction a aa nennen nnns 59 12 6 In Case Refrigerant is Leaking a a 60 12 7 Charging Additional Refrigerant 61 12 8 Retro Fitting Existing Systems a 61 INSTRUCTION MANUAL nnn eene tentent tette nen 62 1 OPERATING RANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp 32 C D B 23 C W B 43 C DB Cooling 19 C DB 14 C WB 15 C DB 27 C DB 24 C DB 18 C WB eatin 9 16 C D B DB 15 C WB 2 SPECIFICATIONS 2 1 Unit Specifications Indoor Unit SAP KRV96EHDS Outdoor Unit SAP CRV96EHDS Se Mo Perle Voltage Rating 230V Performance Capacity kW 2 65 0 9103 6 3 60 0 9to 4 9 BTU h 9 000 3 100 to 12 200 11 900 3 100 to 16 700 Kir Circulation High meh Moisture Removal High 16 Running Amperes 335 25010 1 400 Power Factor
2. uqa ga RS a 14 TROUBLESHOOTING Es uuu utu musu e oT RE e D tha eni etn Frente Rute ette Sot Bee east 15 OPERAIHNGIPANGE m A 15 Ol 925 2 EG PRODUCT INFORMATION If you have problems or questions concerning your Air Conditioner you will need the following information Model and serial numbers are on the nameplate on the bottom of the cabinet Model No Serial No Date of purchase Dealer s address DECLARATION OF CONFORMITY This product is marked C as it satisfies EEC Directive No 89 336 EEC 73 23 EEC 93 68 EEC and 92 31 EEC This declaration will become void in case of mis usage and or from non observance though partial of Manufacturer s installation and or operating instructions ALERT SYMBOLS The following symbols used in this manual alert you to potentially dangerous conditions to users service personnel or the appliance N 19 AN emon This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage INSTALLATION LOCATION e We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit Before installation check that the voltage of the electric supply in your home or office
3. NNN AN NW VAN A N WW NN AN WAN za N NN N NON W M ANI N RW NN AAS VA Air intake Min 10 cm AN W Nn ZN NY WW QS V E Concrete or equal A Ww A N N N NN Fig 5a y JN AN NN N A iW MW NN Y IN IN IY SA NN AN Ah ATS ANY TS AN ANN WAN NW AN AW WWW AN AREA IN NW IN AY N SW UII Z 7 h W N Cushion rubber 24 7 2 Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality For field wiring requirements please refer to your local electrical codes Carefully observe these regulations when carrying out the installation Table 2 lists recommended wire lengths and diameters for power supply systems Refer to the wiring system diagram Fig 6 for the meaning of A B and C in Table 2 Table 2 Cross Sectional A B Power Supply Wiring Length m C Control Area mm B Power Line Length m Line Length m Fuse or Circuit Breaker Capacity x 049 07 2 CRV126 __ 049 _ __ 2 _ AN ma e Be sure to comply with local codes on running the WIRING SYSTEM DIAGRAM j INDOOR
4. e en s I T Code Diagnostics item Diagnostics contents Room temperature sensor failure 1 Sensor open circuit or short circuit 2 Contact failure at connector or open circuit at terminal crimping location short circuit Indoor heat exchanger sensor failure detection only for the humidity sensor Humidity sensor failure Compressor temperature sensor failure e SH Suction sensor failure Outdoor heat exchanger sensor failure Outdoor air temperature sensor failure Electrical current detection failure 1 Operating frequency is 45 Hz or higher and less than 0 5 A of current is flowing 01 Indoor outdoor communications failure 2 AC power failure 3 Blown fuse 4 Power relay failure serial communications 5 Indoor or circuit board ma o0 EV Outdoor unit external ROM failure 1 External ROM data failure 2 External ROM installation failure S PAM circuit failure 1 PAM circuit abnormal voltage 2 Protection for current E3EJESEJ ovement 1 Electric expansion valve failure 2 Capillaries choked 3 Shortage of refrigerant E07 Indoor fan operating failure 1 Locked fan motor 2 Contact failure at connector Indoor zero cross failure 3 Noise ae power blackout or power waveform error due to lightning or other factor 1 4 way valve failure heat pump model only 4 way valve switching failur Ca ar o oe meme 2 Indoor heat exchanger temperature sensor disconnected me G M RIEN No refrigerant pro
5. 810 AMOS hete beennaad end 8 11 Disconnecting and Connecting Positive Connector for Outdoor Unit 9 FUNCTIONS 9 1 9 2 Operation FUAGUONS Sete A A na DIES Protective Functions sk ARA e ca esa e ba ERR sa RAN RANA Page 10 TROUBLESHOOTING 10 1 Precautions before Performing Inspection or Repair 43 10 2 Method of Self Diagnostics a aa ara ar 43 10 3 Checking the Indoor and Outdoor Units a 45 10 4 Trouble Diagnosis of Fan Motor aan aaneen eneen enen envenerenenvenenennenenensnnr 48 10 5 Noise Malfunction and Electromagnetic Interference 50 10 6 Checking and Troubleshooting when the Front Panel fails to work 51 11 CHECKING ELECTRICAL COMPONENTS 11 1 Measurement of Insulation Resistance a a a a ar I Imre KKA 53 11 2 Checking Continuity of Fuse on PCB Ass y a 54 12 REFRIGERANT R410A SPECIAL PRECAUTIONS WHEN SERVICING UNIT 12 1 Characteristics of New Refrigerant R410A 55 12 2 Checklist before Servicing
6. Compressor discharge temperature C Area Automatic capacity control When the temperature rises above Point A the operation frequency is reduced at a specified rate Area Further frequency increase is prohibited When the temperature falls below Point B prevention of a rise in frequency is released and the air conditioner operates as in a area The compressor will stop if the temperature of the compressor discharge exceeds 120 C due to shortage of gas or other reason B Defrost detection and release e Reverse Cycle Defrosting Defrosting Sequence Heating operation e Outdoor fan ON e 4 way valve ON Defrost detection occurs in either of the following cases e The temperature of the heat exchanger remains at or below the L1 line for 3 minutes after the start of HEAT operation The temperature of the heat exchanger remains at or below the L2 line for 120 minutes after the start of HEAT operation Outdoor heat exchanger temp Ambient temp Frosting area Reverse cycle defrosting operation Compressor 1 minute after it is stopped compressor is ON Outdoor fan OFF e Indoor fan OFF 4 way valve OFF e Operation lamp Repeatedly switches between red and orange illumination Heleasing of defrosting Outdoor heating exchanger temp is over 20 C Defrosting operation lasts 12 minutes maximum 2 minutes after it is stopped compressor is ON 4 way valve is ON Outdoor
7. OPERATION LED CLEAN 27 LED CLEAN lamp TIMER lamp OPERATION lamp Fig 8c 7 5 Removing and Installing the Grille Front panel Basically these models can be installed and wired without removing the grille If access to any internal part is needed follow the steps as given below How to remove the grille 1 Open the front panel until it is nearly horizontal grasp the sections near the front panel arms on both sides and then pull forward to remove the front panel Fig 9 Fig 9 2 Remove the 3 screws from the frame Also remove the 2 screws where the screw covers Grille 4 are open Fig 10 FS Y 3 Press the 3 tabs on the top of the grille to A E disengage them Fig 10 Baran j 1 i 4 Pull the grille toward you to remove it Fig 10 r D How to replace the grille 1 Insert the bottom of the grille into the flap with the flap at a more or less horizontal position 2 While aligning both edges of the grille with the frame move the panel horizontally and insert the top and bottom into the frame 3 Press the air discharge outlet firmly with your hand to ensure no gap exists between the main unit and grille 4 Tighten the 2 screws and close the screw covers Also tighten the 3 screws of the frame 5 Grasp the sections near the front panel arms on both sides hold the front panel so that it is nearly horizontal bring the arm shafts
8. Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 9 2 Overload prevention during heating Q9 Points of rating condition Black dots in above charts indicate the following rating conditions Cooling Indoor air temperature 27 C D B 19 C W B Heating Indoor air temperature 20 C D B Outdoor air temperature 35 C D B 24 C W B Outdoor air temperature 7 D B 6 C W B 16 Indoor Unit SAP KRV126EHDS Outdoor Unit SAP CRV126EHDS Cooling Characteristics B Heating Characteristics 4 Temp 30 C Indoor ALS s MPaG kgf cm2G MPaG kgf cm2G A HI T T sil r il n AT fg j J LA A IlIIIII mz AT Low pressure at wide tube service valve High pressure at wide tube service valve Outdoor fan speed 5 e x Operating current A Operating current A p _ AASS S A es P Outdoor fan speed Indoor discharge air temperature C poe Ls ee Indoor discharge air temperature Outdoor inlet air D B temp C Outdoor inlet air D B temp C NOTE e Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer
9. e Press the locations marked by the arrows and close the front panel Front panel Groove m shaft N n N CAUTION When using a footstool or the like be careful not to let it tip over How to remove the anti mold filter 1 Open the front panel until it is nearly horizontal grasp the sections near the front panel arms on both sides and then pull toward you to remove the front panel 2 Remove the anti mold filter Air clean EEN Front panel Arm Cleaning Use a vacuum cleaner to remove light dust If there is sticky dust on the filter wash the filter in lukewarm soapy water rinse it in clean water and dry it Ol 925 14 EG How to replace the anti mold filter 1 Insert the top of the anti mold filter align the two protrusions with the center hook at bottom then mount the filter into place 2 Press the locations marked by the arrows and close the front panel Air Clean Filter The air clean filter removes dust and dirt from the air and reduces odors and smoke from tobacco WARNING This air clean filter cannot remove AN harmful gases or vapors nor ventilate air in the room You must open doors or windows frequently when you use gas or oil
10. Outdoor Unit SAP CRV126EHDS Control PCB CB CRV126EHDS Control Circuit Fuse 250V 20A Compressor DC Rotary Hermetic Compressor Model Nominal Output C 1RVN68HOK 675W Compressor Oil Amount CC FV50S 350 Coil Resistance Ambient Temp 20 C Safety Device CT Peak current cut off control Yes Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Run Capacitor Micro F VAC _Crankcase Heater Type Propeller EE E FNommalQuput AND Coil Resistance Ambient Temp 20 C Safety Device Type Over Current Protection Over Heat Protection Run Capacitor Heat Exchanger Coil Aluminum Plate Fin Copper Tube Fin Pitch mm Face Area m 0 414 External Finish __ Acrylic baked on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE 2 3 Other Component Specifications Indoor Unit SAP KRV96EHDS SAP KRV126EHDS Outdoor Unit SAP CRV96EHDS SAP CRV126EHDS e Indoor air temp sensor Model DTN TKS319Y TH1 TUE RN NN ee ee eee 1 _ dL JN d _ 2 Resistance ohm 10 15 20 25 30 35 40 Temperature C e Humidity sensor Model C10 M52R SY2 30 35 40 45 50 55 60 65 70 75 80 85 90 Relative Humidity RH Indoor heat exchanger sensor Model DTN TKS319Y TH2 Compressor temp sensor Model DTN TKS335B gt Resistance k ohm re ee O 10 20 30 40
11. Remove 2 screws and the cable holding plate Hemowve the inter unit cable Fan motor connector Hook Pull the hook forward to pull out all connectors Upper lower flap motor connector Disconnect from the P C Board UV antibacterial filtration unit connector 31 7 Remove the screw and the drain guide plate The screw tighten the drain guide plate and the electrical component box 8 Remove the ground terminal and the heat exchanger temperature sensor lead and the heat exchanger temperature sensor lead from hook Ground terminal Heat exchanger temperature sensor Drain guide plate Electrical component box 9 Release the right side tab of electrical component box and pull out the electrical component box Electrical component box Right side tab Power cord Pull the power cord toward you to facilitate replacement of the P C Board and so on 32 8 5 Removing the P C Board Tab 2 1 Remove the indicator 2 Release the tab 1 Then release the tab 2 and separate the electrical component box into 2 parts Electrical component box Tab 1 Byr Indicator f Wero the right and left side tabs 3 Disconnect all connectors on the control lt motor S I em Control P C Board 99 O Q EA al W ia N se 8 F AAO 8 6 Removing the Panel M
12. This completes the setting of the current time 2 How to set the OFF time Example To stop the air conditioner at 11 00 am m 1 Press the OFF TIME setting button once 2 Press the Advance Return w button until AM 11 00 is displayed 3 Wait a few seconds and then the setting is complete 12 The timer OFF indication is displayed and the present OFF time is shown The timer indication blinks The time can be set in 10 minute increments Holding down the button advances the time rapidly in 10 minute increments The timer OFFC indication stops blinking and the present time is displayed time is displayed 4 How to set daily ON OFF repeat timer Example To start operation at 7 10 am and stop the air conditioner at 11 00 am A qg 1 C ON GY OFFS PM 424 00 0 BOK 10 30 pm 11 00 am Present time OFF LLLA D QNM 1 Set the timer ON OFF times The present time 10 30 pm and ON OY are displayed 7 10 am as shown in 2 1 2 3 and 3 1 283 The ON OFF combination timer uses the current time as the reference and it is activated starting from whichever set time comes first e With the ON OFF combination timer the settings are repeated every day e You can check the timer ON OFF times after you have set them by pressing the ON TIME and OFF TIME setting buttons To cancel a timer p
13. 50 60 70 80 90 Temperature C e Outdoor air temp sensor Model 1FA4V2E034000 Outdoor heat exchanger sensor Model DTN TKS334B ss 2 Resistance ohm ER NN ic ER E 20 15 10 5 0 10 15 20 Temperature 9 12 3 DIMENSIONAL DATA Indoor Unit SAP KRV96EHDS SAP KRV126EHDS Drain hose dia 18 Narrow tube dia 6 35 1 4 Wides tube dia 9 52 3 8 During Operation Air Intake 5 Unit mm Outdoor Unit SAP CRV96EHDS SAP CRV126EHDS Wide tube service valve dia 9 52 3 8 Narrow tube service valve 790 72 dia 6 35 1 4 565 Unit mm 14 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram Indoor Unit SAP KRV96EHDS Outdoor Unit SAP CRV96EHDS SAP KRV126EHDS SAP CRV126EHDS Indoor unit Outdoor unit x x Wide tube Accumulator 5 i ze iic un nen i service gt x Wide tube valve E x t AK g pee i Muffler x x 9 52mm _ S x 3 8 x x x AA e og I I ME T i x 5 l O O 52 x o 1 T l f x a x Capillary T x tube for x split flow x x x N Electric x x a expansion valve Service x x Narrow tube valve n REN x 2 ee K CRI u i Cooling cycle x on PCR IRR c M RE x Heating cycle Insulation of Refrigerant Tubing IMPORTANT
14. Because capillary tubing is used in the outdoor unit both the wide and narrow tubes of this air conditioner become cold To TR Insulation prevent heat loss and wet floors due to dripping of condensation both tubes must be well insulated with a Thickness Thickness proper insulation material The thickness of the insulation Min 8 mm Mine mm should be a min 8 mm After a tube has been insulated bic Wide tube never try to bend it into a narrow CAUTION curve because cause the tube to break or crack 15 5 PERFORMANCE DATA 5 1 Temperature Charts Indoor Unit SAP KRV96EHDS Outdoor Unit SAP CRV96EHDS Cooling Characteristics B Heating Characteristics gt Outdoor fan speed EET n 1 4 ind or Air T emp MPaG kgf cm G RB X MPaG kgf cm G a TL ii EEE SE es High pressure at wide tube service valve Low pressure at wide tube serv J 3 V Outdoor fan speed Low In LET HI f d Operating current A Operating current A P Outdoor fan speed k A d Indoor discharge air temperature C L1 j i j ty Eq Indoor discharge air temperature 0 5 10 15 20 25 Outdoor inlet air D B temp C Outdoor inlet air D B temp C NOTE e Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value
15. R410A 12 5 1 Procedure for Replacing Compressor 1 Recovering refrigerant e Any remaining refrigerant inside the unit should not be released to the atmosphere but recovered using the refrigerant recovery unit for R410A e Do not reuse the recovered refrigerant since it will contain impurities 2 Replacing Compressor e Soon after removing seals of both discharge and suction tubes of the new compressor replace it quickly 3 Checking for sealing e Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 4 Evacuation e Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back e Ihe equipment may be damaged if moisture remains in the tubing thus carry out the evacuation thoroughly e When using a vacuum pump with exhaust air volume more than 25L min and ultimate vacuum pressure rate of 0 05Torr Standard time for evacuation 1 Recover refrigerant OK 2 Replace compressor OK 3 Check for sealing OK 4 Evacuation OK 5 Recharge Length of tubing Less than 10 meters More than 10 meters More than 10 minutes More than 15 minutes 58 5 Recharging Configuration and characteristics of cylinders e Be sure to charge the specified amount of Valve refrigerant in li
16. a communication error between the indoor unit and outdoor unit might be considered In such a case identify the breakdown section by using the following procedure Refer to Method of Self Diagnosis for the self diagnosis procedure gt Off iK Blinking X Illuminated 3 1 Condition E01 For terminal board short circuit work or inter unit wiring removal turn off the power to NE avoid an electric shock Remove the terminal board short circuit after the completion of self diagnosis Operate the air conditioner in the TEST RUN mode Does the voltage 1 Short circuit between the terminals 2 and 3 between the terminals 1 and 2 on the outdoor unit terminal board on the outdoor unit terminal board 2 Operate the system in TEST RUN mode Then reach the rated value five minutes later perform the self diagnosis Condition E12 An error in the P C Board in the outdoor unit might be considered Does the voltage 1 Disconnect the inter unit wiring on the indoor between the wires 1 and 2 of unit side inter unit wiring on the outdoor unit side 2 Short circuit between the terminals 2 and 3 reach the rated value on the indoor unit terminal board 3 Operate the system in TEST RUN mode Then five minutes later perform the self diagnosis 1 Disconnect the inter unit wiring on the outdoor What is the self diagnosis result unit side 2 Operate the system in the TEST RUN mode
17. cooling or dry operation the flap is set at position 7 in the following chart The airflow direction can be set manually six positions ze The flap moves up and down automatically QUIET MODE When you press the FLAP button the air flow direction will be changed one by one as follows a 2 3 4 5 6 7 8 gt lt q cR Eu oc worm SWEEP ON TIME OFF TIME setting buttons Advance button Return button No display The timer does not operate The air conditioner starts at the set time The air conditioner stops at the set time ov The air conditioner stops and starts or starts and stops at the set times every day For details see SETTING THE TIMER CANCEL button SENSOR button When you press this button use a small tipped object such as a ballpoint pen the mark will appear at the display And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly If the remote control is located near a heat source such as a space heater or in direct sunlight press the SENSOR button to switch to the sensor on the indoor unit ADDRESS switch e The address switch changes to prevent mixing of signals from remote control units when two air conditioners are installed next to each other Temperature display selector button Normally the address switch is set to A For more information please This switches the temperature display c
18. fan is ON NOTE If the air conditioner is turned off during the defrosting cycle it will continue defrosting and turn itself off after defrosting is completed 42 CT Peak current cut off control This function prevents the circuit breaker or fuse from operating to open the circuit This function works when electrical current has increased due to an increase in the cooling heating load or to a decrease in the power supply voltage In these cases operation frequency is reduced or operation is interrupted auto matically to control the electrical current for operation When the cause of the increase in electrical current is rectified the system will resume operation in the original mode A _ Cooling Dry Heating Peak current cut off trips Nier Electrical current setting for COOL operation is used during DEFROST operation Operation Cut Off Control in abnormal ambient temperature The following three protective actions are available to prevent the compressor from operating with abnormal loads At that time they initiate thermo off stopping the outdoor unit of the air conditioner e Mode Cooling Thermo off Thermo on Cut off action t ambient temp t ambient temp Low ambient temp lt 20 C t 16 C cut off 7 e Mode Heating U Thermo off Thermo on Cut off action t ambient temp t ambient temp High ambient temp t gt 33 t lt 29 C cut off 7 Low ambient temp l
19. from any of the listed values replace the panel motor with new one Judgment 52 11 CHECKING ELECTRICAL COMPONENTS 11 1 Measurement of Insulation Resistance e The insulation is in good condition if the resistance exceeds 1M ohm 11 1 1 Power Supply Cord Clamp the grounding wire of power cord with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the two power wires Fig 1 Then also measure the resistance between the grounding and other power terminals Fig 1 11 1 2 Indoor Unit Clamp an aluminum plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate Fig 2 Note that the ground line terminal should be skipped for the check 11 1 3 Outdoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal plate Fig 2 11 1 4 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from terminal plate capacitor etc Similarly disconnect the connector Then measure the insulation resistance Figs 3 and 4 NOTE Refer to Electric Wiring Diagram If the probe cannot enter the poles because the hole is too narro
20. heating appliances Otherwise there is a risk of suffocation in extreme cases How to install the air clean filter The air clean filter needs to be installed behind the anti mold filter Air clean filter d ded O n LE T 1 Remove the anti mold filter 2 Install the air clean filter in the position shown in the figure 3 Reinstall the anti mold filter How to clean the air clean filter n general the filter should be sucked to remove dust in low fan speed of a vacuum cleaner once every three months f there is heavily grime on the filter soak the filter in lukewarm water with neutral detergent diluted 1 500 for 1 to 2 minutes then wash it Rinse the filter in clean water then let it dry on the towel in room temperature e Do not bend nor give excessive force onto the air clean filter f the filter surface is heavily blocked with dirt or damaged replace it with new one Purchase a replacement filter at your local dealer model STK FDXB Cleaning the main unit and remote control unit e Wipe clean using a soft dry cloth e To remove stubborn dirt moisten a cloth in warm water no hotter than 40 C wring thoroughly and then wipe TROUBLESHOOTING If your air conditioner does not work properly first check the following points before
21. injury or death This symbol refers to a hazard CAUTION nate practice can result in personal injury or product or property damage If Necessary Get Help These instructions are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sales service outlet or your certified dealer for additional instructions In Case of Improper Installation The manufacturer shall in no way be responsible for improper installation or maintenance service including failure to follow the instructions in this document SPECIAL PRECAUTIONS WARNING When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked Highly dangerous electrical voltages are used in this system Carefully refer to the wiring diagram and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury or death Ground the unit following local electrical codes Connect all wiring tightly Loose wiring may cause overheating at connection points and a possible fire hazard When Transporting 606000000000000000990000090000009090000000000000009000009000000900000090000009000009000000000009000090090000000000900000000000909 Be careful when picking up and moving the indo
22. installed adapter attached to a conventional vacuum pump Electronic scale for charging refrigerant Flare tool Bender Tools which can be com Torque wrench monly used for R22 R407C and R410A Cutter reamer Welding tool nitrogen gas cylinder Doing so will cause malfunction of the unit AN En e The above tools specifically for R410A must not be used for R22 and R407C e For the above vacuum pump 1 2 and vacuum pump adapter 3 those for R22 type units can be used for R410A type However they must be used exclusively for R410A and never alternately with R22 and R407C e o prevent other refrigerants R22 R407C from being mistakenly charged to this unit shape and external diameter of the service port screw has been altered External diameter of service R410A 7 94 mm 5 16 R22 R407C 6 35 mm 1 4 12 4 Tubing Installation Procedures When the tubes are connected always apply HAB oil on the flare portions to improve the sealing of tubing The following is the HAB oil generally used Esso ZERICE S32 For details on tubing installation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 57 12 5 In Case of Compressor Malfunction CAUTION e Should the compressor malfunction be sure to make the switch to a replacement compressor as quickly as possible e Use only the tools indicated exclusively for R410A See 12 3 Tools Specifically for
23. operation is as shown in the figure below Load COOL p HEAT gt STOP COOL zone GREEN RED Lamp Off A zone B zone The set temperature is 2 C below the detected room temperature in the case of cooling operation and 2 C Conditions are monitored at all above the room temperature in the case of heating times when the room temperature operation The flap and fan speed settings are AUTO is below 15 C DRY The compressor operation frequency varies ll AUTO cooling heating operation The indoor fan operates with 1 f fluctuation e Selecting the operation mode DRY B The compressor operates at a low operating frequency The indoor fan operates with 1 f fluctuation e When AUTO mode is selected the microprocessor calculates the difference between the set temperature and the room temperature and automatically switches to Cooling or Heating mode mene Monitoring operation takes place when the room temperature Room emps ye SMEA is below 15 C or more than 3 C below the set temperature As shown by the example in the figure below with AUTO When the monitoring range is entered the compressor stops cooling heating operation the mode changes between and the indoor fan operates with 1 f fluctuation Heating and Cooling mode according to changes in the relationship between the current room temperature and the NOTE set temperature The Sensor Dry operation during the Low Ambient Cooling Mode outs
24. oxygen from the air Otherwise there Is a risk of suffocation in an extreme case Do not turn the air conditioner on and off from the power mains switch Use the ON OFF operation button Do not stick anything into the air outlet of the outdoor unit This is dangerous because the fan is rotating at high speed Do not let children play with the air conditioner Do not cool or heat the room too much if babies or invalids are present AN caution NAMES OF PARTS UNIT DISPLAY AND OPERATION BUTTON Air intakes INDOOR UNIT INDOOR UNIT OE OPERATION button o Air outlet OPERATION lamp Remote control unit REMOTE CONTROL i Lf Nes AT receiver A NT TIMER lamp LED CLEAN lamp Drain hose N IMPORTANT Avoid using radio equipment such as mobile phone near within 1 m the remote control receiver Some radio equipment may cause malfunction of the unit Refrigerant tubes gt c Sain OUTDOOR UNIT If the trouble happens disconnect power and restart the air conditioner after a few minutes REMOTE This section picks up infrared signals from the CONTROL remote control unit transmitter receiver OPERATION When the remote control cannot be used button pressing this button with a small pointed tool enables heating and cooling operation Each time this button is pressed the type of operat
25. requesting service If it still does not work properly contact your dealer or service center Ol 925 15 EG Air conditioner does not run at all OPERATION lamp blinks and air conditioner does not operate Compressor runs but soon stops Poor cooling or heating performance 1 Power failure 2 Leakage circuit breaker tripped 3 Line voltage is too low 4 Batteries in remote control unit have run down Trouble in system Obstruction in front of condenser coil Dirty or clogged air filter Heat source or many people in room Doors and or windows are open Obstacle near air intake or air discharge port Thermostat is set too high for cooling or too low for heating Outdoor temperature is too Restore power Contact service center Consult your electrician or dealer Replace batteries Contact service center Remove obstruction Clean air filter to improve airflow Eliminate heat source if possible Shut them to keep the heat or cold out Remove it to ensure good airflow Set the temperature lower or higher Consult your dealer or try to use another heat appliance low for heating This is normal and the sound will soon disappear Clicking sound is heard from the air conditioner In heating or cooling operation any plastic parts may expand or shri
26. to 9 2 Overload prevention during heating Q9 Points of rating condition Black dots in above charts indicate the following rating conditions Cooling Indoor air temperature 27 C D B 19 C W B Heating Indoor air temperature 20 C D B Outdoor air temperature 35 C D B 24 C W B Outdoor air temperature 7 C D B 6 C W B 17 5 2 Air Throw Distance Charts Indoor Unit Room air temp Fan speed Axis air velocity m s Vertical distance m N Room air temp Fan speed Axis air velocity m s Vertical distance m SAP KRV96EHDS 27 C High Horizontal distance m Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity 30 20 C High Horizontal distance m 2 3 4 5 6 7 Flap angle 45 Flap angle 60 Axis air velocity 45 Axis air velocity 60 18 Indoor Unit Room air temp Fan speed Axis air velocity m s Vertical distance m N Room air temp Fan speed 1 20 2 O gt in lt gt 4 5 SAP KRV126EHDS 27 C High Flap angle 0 Flap angle 30 20 C High Flap angle 45 Flap angle 60 Horizontal distance m 19 Axis air velocity 0 Axis air velocity 30 Horizontal distance m Axis air velocity 45 Axis air velocity 6
27. 0 6 ELECTRICAL DATA 6 1 Electrical Characteristics Indoor Unit SAP KRV96EHDS Outdoor Unit SAP CRV96EHDS Cooling Outdoor Unit Complete Unit FanMotor Motor Fan Motor Compressor Performance at 230V Single phase 50Hz Rating conditions Running amp Power input Rating conditions Indoor air temperature 27 C D B 19 C W B Outdoor air temperature 35 C D B Indoor Unit Outdoor Unit Complete Unit FanMotor Motor Fan Motor Compressor Performance at 230V Single phase 50Hz Rating conditions Running amp Power input Heating Rating conditions Indoor air temperature 20 C D B Outdoor air temperature 7 C D B 6 C W B Indoor Unit SAP KRV126EHDS Outdoor Unit SAP CRV126EHDS Cooling Indoor Unit Outdoor Unit Complete Unit FanMotor Motor Fan Motor Compressor Performance at 230V Single phase 50Hz Rating conditions Running amp Power input Rating conditions Indoor air temperature 27 D B 19 C W B Outdoor air temperature 35 C D B Outdoor Unit Complete Unit FanMotor Motor Fan Motor Compressor Heating Performance at 230V Single phase 50Hz Rating conditions Running amp Power input Rating conditions Indoor air temperature 20 C D B Outdoor air temperature 7 CD B 6 C W B 20 6 2 Electric Wiring Diagrams Indoor Unit SAP KRV96EHDS SAP KRV126EHDS To avoid electrical shock hazard be sure to disconnect power before checking servicing
28. 2 This will cause the air conditioner to operate improperly and may result in a hazardous condition 12 8 2 Use of Existing Tubing e If replacing an older unit that used refrigerant R22 with a R410A unit do not use its existing tubing Instead completely new tubing must be used 61 APPENDIX INSTRUCTION MANUAL SAP KRV96EHDS SAP CRV96EHDS SAP KRV126EHDS SAP CRV126EHDS 01 852 6 4180 925 00 0 FEATURES This air conditioner is an inverter type unit that automatically adjusts capability as appropriate Details on these functions are provided below refer to these descriptions when using the air conditioner Microprocessor Controlled Operation The interior compartment of the remote control unit contains several features to facilitate automatic operation easy logically displayed for easy use Simple One touch Wireless Remote Control The remote control unit has several features to facilitate automatic operation 24 Hour ON or OFF Timer This timer can be set to automatically turn the unit on or off at any time within a 24 hour period 1 Hour OFF Timer This timer can be set to automatically turn off the unit at any time after one hour Night Setback Pressing this button changes the setting of the room temperature thermostat allowing you to set the temperature at whatever level that you find comfortable Automatic and 3 step Fan Speed Auto High Medium Low Air Sweep Control This function moves a flap up and down i
29. 8 m away from the air conditioner In the path of the air conditioner s airstream e Where it may become extremely hot or cold e Where it may be subject to electrical or magnetic noise Where there is an obstacle between the remote control unit and air conditioner since a check signal is sent from the remote control unit every 5 minutes MOUNTING THE REMOTE CONTROL UNIT Before mounting the remote control unit press the ON OFF operation button at the mounting location to make sure that the air conditioner operates from that location The indoor unit should make a beeping sound to indicate that it has received the signal Rear side Mounting screws To prevent loss of the remote control 4 x 16 included unit you can connect the remote control unit to the mount by passing a string through the remote control unit and attachment hole To take out the remote control unit pull it forward WHEN HOLDING THE REMOTE CONTROL UNIT e When using the remote control unit and during air conditioner operation the transmitter on the remote control unit should be pointed toward the receiver on the indoor unit Make sure that there are no objects between the remote control unit and receiver which could block the signal Ol 925 8 EG OPERATION WITH THE REMOTE CONTROL UNIT 1 Automatic Operation This unit automatically switches between cooling operation and heating operation according to the difference between the room temperatur
30. Condition EO1 An error in the P C Board in the outdoor unit might be considered Terminal board error etc An error in the P C Board in the indoor unit might be considered What is the self diagnosis result Connection error between the P C Board in the indoor unit and J B An error in the inter unit wiring might be considered ex wire breaking or connection error etc Condition E12 An error in the inter unit wiring Condition EO1 might be considered ex wire breaking or connection error etc An error in the P C Board in the indoor unit might be considered Connection error between the P C Board in the indoor unit and J B 46 3 2 Condition E12 1 Disconnect the inter unit wiring on the outdoor unit side 2 Operate the system in TEST RUN mode Then five minutes later perform the self diagnosis Condition EO1 What is the self diagnosis result Condition E12 1 Disconnect the inter unit wiring on the indoor An error in the P C Board in the unit side outdoor unit might be considered 2 Operate the system in TEST RUN mode Then Terminal board error etc five minutes later perform the self diagnosis Condition EO1 What is the self diagnosis result Condition E12 An error in the P C Board in the An error in the inter unit wiring indoor unit might be considered might be considered Connection error between the P C Boa
31. Control Circuit Fuse 250V 3 15A Remote Control Unit RCS 6MHVPUSWAE Q ty Dia and Length mm 1 D85 L551 FNo ofPoles E Ambient Temp 20 C Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Flap Motor Model For Upper Flap For Lower Flap Coil Resistance Ohm Each Pair of Terminal 70 7 Ambient Temp 25 C Panel Motor Stepping Motor Model 2425 DC 5V Coil Resistance Ohm Each Pair of Terminal 70 796 Ambient Temp 25 C Heat Exchanger Coil DATA SUBJECT TO CHANGE WITHOUT NOTICE 2 2 2 Outdoor Unit Outdoor Unit SAP CRV96EHDS Control PCB CB CRV96EHDS Control Circuit Fuse 250V 20A Compressor DC Rotary Hermetic Compressor Model Nominal Output C 1RVN68HOK 675W Compressor Oil Amount CC FV50S 350 Coil Resistance Ambient Temp 20 C Safety Device CT Peak current cut off control Yes Compressor Discharge Temp Control Operation cut off control in abnormal ambient Temp Run Capacitor Micro F VAC _Crankcase Heater Type Propeller EE E FNommalQuput AND Coil Resistance Ambient Temp 20 C Safety Device Type Over Current Protection Over Heat Protection Run Capacitor Heat Exchanger Coil Aluminum Plate Fin Copper Tube Fin Pitch mm Face Area m 0 414 External Finish __ Acrylic baked on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE
32. ED CLEAN mode a UV anti bacterial unit including a LED CLEAN lamp and anti bacterial filter in the indoor unit is used during AUTO HEAT DRY COOL or FAN operation to remove bacteria from air blown from the air conditioner Press the LED CLEAN button The mark appears in the display Ol 925 11 EG To cancel press the LED CLEAN button again e When the LED CLEAN button is pressed the UV anti bacterial unit operates for one hour and cleans air blown from the air conditioner e Pressing the MODE selector button cancels LED CLEAN mode Do not open the front panel while the LED CLEAN lamp on the display is on Depending on the room brightness light from the LED CLEAN lamp may reflect inside the air conditioner and be visible This is not a malfunction SPECIAL REMARKS How it works e Once the room temperature reaches the level that was set the unit s operation frequency is changed automatically e During DRY operation the fan speed automatically runs at lower speed for providing a comfortable breeze e DRY operation is not possible if the indoor temperature is 15 C or less Heating Operation i Heating performance e Because this air conditioner heats a room by drawing in the heat of the outside air heat pump system the heating efficiency will fall off when the outdoor temperature is very low If sufficient heat cannot be obtained with this air conditioner use another heating appliance toge
33. Evacuation e Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back e The equipment may be damaged if moisture remains in the tubing thus carry out the evacuation thoroughly e When using a vacuum pump with exhaust air volume more than 25L min and ultimate vacuum pressure rate of 0 05Torr Standard time for evacuation 1 Detect leaks OK 2 Recover refrigerant OK 3 Weld leaking points OK 4 Check for sealing OK 5 Evacuation OK 6 Recharge Length of tubing Less than 10 meters More than 10 meters More than 10 minutes More than 15 minutes 6 Recharging e Recharge unit in the same manner explained on the previous page 5 Recharging 60 12 7 Charging Additional Refrigerant 12 7 1 When Tubes are Extended e Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit Charge additional refrigerant in liquid state only Never charge additional refrigerant if refrigerant is leaking from the unit Follow instructions given in 12 6 In Case Refrigerant is Leaking and completely carry out repairs Only then should you recharge the refrigerant 12 8 Retro Fitting Existing Systems 12 8 1 Use of Existing Units e Never use new refrigerant R410A for existing units which use R2
34. OUTDOOR wire from the indoor unit to the outdoor unit size of UNIT B UNIT wire and wiring method etc Terminal e Each wire must be firmly connected mis e No wire should be allowed to touch refrigerant tubing C the compressor or any moving part DP A L meo WARNING Single phase 220 240VAC 50HZ N w Grounding line e To avoid the risk of electrical shock each air conditioner unit must be grounded e For the installation of a grounding device please observe local electrical codes Fig 6 e Grounding is necessary especially for units using inverter circuits in order to release charged electricity and electrical noise caused by high tension Otherwise electrical shock may occur e Place a dedicated ground more than 2 meters away from other grounds and do not have it shared with other electric appliances CAUTION e Be sure to connect the power supply line to the outdoor unit as shown in the wiring diagram The indoor unit draws its power from the outdoor unit e Do not run wiring for antenna signal or power lines of television radio stereo telephone security system or intercom any closer than 1 meter from the power cable and wires between the indoor and outdoor units Electrical noise may affect the operation 25 7 3 Remote Control Unit Installation Position The remote control unit can be operated from either a non fixed position or a wall mounted position To ensure t
35. PT TEHO2 On CO ACL button 1 Slide the cover in the direction indicated by the arrow and remove it 2 Install two AAA alkaline batteries Make sure the batteries point in the direction marked in the battery compartment 3 Use a thin object such as the tip of a pen to press the ACL button e The batteries last about six months depending on how much you use the remote control unit Replace the batteries when the remote control unit s display fails to light or when the remote control cannot be used to change the air conditioner s settings Use two fresh leak proof type AAA alkaline batteries In replacing batteries follow the instructions as mentioned in the sub section HOW TO INSTALL BATTERIES e If you do not use the remote control unit more than 1 month take out the batteries HOW TO USE THE REMOTE CONTROL UNIT When using the remote control unit always point the unit s transmitter head directly at the air conditioner s receiver Air conditioner Indoor unit Receiver Ly Transmitter head unit 7 Y Remote control REMOTE CONTROL UNIT INSTALLATION POSITION The remote control unit may be operated either from a non fixed position or from a wall mounted position To ensure that the air conditioner operates correctly DO NOT install the remote control unit in the following places DO NOT n direct sunlight e Behind a curtain or other places where it is covered More than
36. TALLATION INSTRUCTIONS 7 1 Installation Site Selection 7 2 Recommended Wire Length and Diameter 7 3 Remote Control Unit Installation Position uuunensnnsrn eneen ennen venenvensnr senen ennen vnnnn 7 4 Howto Test Run the Air Conditioner kk 7 5 Remove the Grille to Install the Indoor Unit 8 MAINTENANCE 8 1 Address Setting of the Remote Control Unit 8 2 Removing and Mounting the Drain Hose O 9 REMON NE 8 4 Removing the Electrical Component BOX a r venen ennnnn 8 5 Removing the PG Board uuu kk uu Ene et oe einen an 90 5 IMEMOVING INE Panel Motor uuu sau o uu a m CUm Ec ttd a 8 7 Removing and Mounting the UV antibacterial filtration unit 8 8 Removing the Drain Pan Air Outlet Ass y 8 9 Removing and Mounting the Fan Motor
37. TECHNICAL amp SERVICE MANUAL SANYO SAP KRV96EHDS SAP CRV96EHDS SAP KRV126EHDS SAP CRV126EHDS DC INVERTER SPLIT SYSTEM AIR CONDITIONER Indoor Model No Product Code No Outdoor Model No Product Code No SAP KRV96EHDS 1 852 340 69 SAP CRV96EHDS 1 852 340 73 SAP KRV126EHDS 1 852 340 70 SAP CRV126EHDS 1 852 340 74 SAP KRV96EHDS SAP CRV96EHDS SAP KRV126EHDS SAP CRV126EHDS Q RoHS This product does not contain any hazardous substances prohibited by the RoHS Directive WARNING You are requested to use RoHS compliant parts for maintenance or repair e You are requested to use lead free solder At A These air conditioners employ new refrigerant R410A Pay special attention when servicing the unit REFERENCE NO SM700708 Important Please Read Before Starting This air conditioning system meets strict safety and operating standards As the installer or service person it is an important part of your job to install or service the system so it operates safely and efficiently For safe installation and trouble free operation you must e Carefully read this instruction booklet before beginning e Follow each installation or repair step exactly as shown Observe all local state and national electrical codes Pay close attention to all warning and caution notices given in this manual This symbol refers to a hazard WARNING or unsafe practice which can result in severe personal
38. TIMER button C At the same time press the ACL reset button once Use a pointed object such as the tip of a pen to press the ACL button e After a few seconds sk appears and oP 1 blinks in the remote controller display area Fig 8b d Release the 1HR TIMER button e Release the LED CLEAN button 2 Start Cooling mode test run by pressing the ON OFF operation button of the remote controller Fig 8a This starts the fan producing uncooled forced air with the 3 indicator lamps OPERATION lamp TIMER lamp and LED CLEAN lamp on the main unit blinking Fig 8c e After 3 minutes the system shifts into cooling operation and cool air will start to be felt Cool mode test run is unaffected by the room temperature 3 Press the ON OFF operation button of the remote controller again to stop the test run Fig 8a 4 Finally press the ACL reset button of the remote controller to release it from Test Run mode to return to normal mode Fig 8a e sk and oP 1 will disappear from the remote controller display area IMPORTANT After the test run is completed be sure to press the ACL reset button to return to normal mode The air conditioner will not operate correctly if this is not done CLEA ON 1 OFF 6 ON OFF Wr operation LED CLEAN button 1HR TEMP TIMER button QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER TIMER SENSOR 12H 4b24H ADR sa CO ACL Reset button
39. after unit operation switched from OFF to ON by use of ON timer operation 40 NIGHT SETBACK e When NIGHT SETBACK operation is set the temperature and fan speed settings will be adjusted automatically to allow comfortable sleep When NIGHT SETBACK operation is set mark appears on the remote controller The main unit display lamp also becomes dimmer e COOL and DRY modes When the night setback mode is selected the air conditioner automatically raises the temperature setting 1 C when 30 minutes have passed after the selection was made and then another 1 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed Setting temperature Press the NIGHT SETBACK button 30 min 30 min Time HEAT mode When the night setback mode is selected the air conditioner automatically lowers the temperature setting 2 C when 30 minutes have passed after the selection was made and then another 2 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle heating is needed Setting 2 C temperature Press the NIGHT SETBACK button 30 min 30 min Time 9 2 Protective Funct
40. al seconds but then quickly stops when the outdoor unit operates There is trouble in the system that provides feedback of motor rotation speed from the motor to the outdoor unit controller Trouble symptom 4 Fan motor rotation speed does not change during outdoor unit operation Trouble symptom 5 Fan motor rotation speed varies excessively during outdoor unit operation Remedy for symptom 3 to 5 It is not possible to identify whether the trouble is outdoor unit controller trouble or motor trouble Therefore first replace the outdoor unit controller then if necessary replace the DC motor 49 10 5 Noise Malfunction and Electromagnetic Interference An inverter A C operates using pulse signal control and high frequencies Therefore it is susceptible to the effects of external noise and is likely to cause electromagnetic interference with nearby wireless devices A noise filter is installed for ordinary use preventing these problems However depending on the installation conditions these effects may still occur Please pay attention to the points listed below 1 Noise malfunction This refers to the application of high frequency noise to the signal wires resulting in abnormal signal pulses and malfunction 1 Locations near broadcast stations where Either of the following trouble may occur The fundamental concept is to make the there are strong electromagnetic waves 1 The unit may stop suddenly during system less susc
41. and or cleaning any electrical parts JOINT BOX e GRN YEL lt EVAPORATOR EARTH PLATE ELEC JB1 gt S WHT DE ES UV UNIT BLK 2 BLK RED FLAP MOTOR UPPER THERMISTOR ROOM THERMISTOR COIL THERMISTOR HUM FA LO WER A 5 PANEL SW PANEL MOTOR IND LAMP ASSY DC FAN MOTOR o 8FA2 5250 07400 1 21 Outdoor Unit SAP CRV96EHDS SAP CRV126EHDS To avoid electrical shock hazard be sure to WARNING disconnect power before checking servicing and or cleaning any electrical parts NOISE FILTER OUT1 REACTOR FERRITE CORE CONTROLLER TERMINAL PLATE BLU BLK WHT WHT WHT MV T RUN TEST OUTDDOR 341516 112 3 4 5 6 BLU BLU 3 mz x aaf 2 0 2 2 Q N 4WAY VALVE COIL POWER TO INDOOR UNIT SUPPLY ANNA il YEL YEL BLK BLK THERMISTOR COMPRESSOR THERMISTOR lo COMPRESSOR MOTOR GRN E OUTDDOR THERMISTOR COIL MAGNETIC COIL FAN MOTOR 8FA2 5250 09900 1 22 INSTALLATION INSTRUCTIONS 7 1 Installation Site Selection 7 1 1 Indoor Unit NE To prevent abnormal heat generation and the possibility 7 74 of fire do not place obstacles 15 5 cm enclosures and grilles in front S cm d of or surrounding the air Dc MA conditioner in a way that may block air flow SS Front View Fig 1 AVOID e direct sunlight e n
42. as not to injure your hands by fins of the heat exchanger 37 8 11 Disconnecting and Connecting Positive Connector for Outdoor Unit wa basic structure is the same for each One of the two types of connectors illustrated at left is used Their 3 How to Disconnect Hold the resin connector cover and pull the connector off You cannot disconnect the connector by pulling the wire since it is locked inside Always hold the cover to disconnect See illustration at left For the connector without the resin cover push the lock in the direction of 2 while pulling it off Pull the cover upward How to Connect In order to connect hold the resin cover of the connector and push it in Confirm the click sound for the inside lock When the cover is pulled upward the lock is released with the sequence of 1 and 2 38 9 FUNCTIONS 9 1 Operation Functions B Emergency operation ll SENSOR DRY Emergency operation is available when the remote During DRY operation the system adjusts the room controller malfunctions has been lost or otherwise temperature and fan speed according to the conditions in the cannot be used room in order to maintain a comfortable room environment To operate the system press the OPERATION button on the SENSOR DRY operation main unit controller Each time this button is pressed the OPERATION lamp changes color to indicate the type of operation Select the desired type of operation e DRY
43. ated charging cylinder P Sige cylinder beforehand CAUTION Teo prevent the composition of R410A from changing never bleed the refrigerant gas into the atmosphere while transferring the refrigerant Fig 3 Ope Refrigerant cylinder Do not use the refrigerant if the amount in the Fig 3 charging cylinder is less than 20 59 12 6 In Case Refrigerant is Leaking CAUTION Never attempt to charge additional refrigerant when refrigerant has been leaking from the unit Follow the procedure described below to locate points of leaks and carry out repairs then recharge the refrigerant 1 Detecting Leaks Use the detector for R410A to locate refrigerant leak points 2 Recovering refrigerant e Never release the gas to the atmosphere recover residual refrigerant using the refrigerant recovery unit for R410A instead e Do not reuse the recovered refrigerant because its composition will have been altered 3 Welding leaking points e Confirm again that no residual refrigerant exists in the unit before starting welding e Weld securely using flux and wax for R410A e Prevent oxide film from forming inside the tubes utilizing substitution with nitrogen N2 in the refrigerant circuit of the unit Leave ends of tubes open during welding 4 Checking for sealing e Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 5
44. cting or disconnecting the motor connectors B When performing voltage measurement at the outdoor controller connector for 3 in the table below the DC motor will trip and voltage output will stop approximately 10 seconds after operation is started For this reason to measure the voltage again first turn OFF the outdoor unit power then measure the voltage in Test Run mode Trouble symptom 1 The fan does not stop when the outdoor unit stops Outdoor unit controller trouble Trouble symptom 2 The fan motor does not rotate when the outdoor unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the outdoor unit controller 3 locations Measurement location 1 Vs Gnd Between pin 1 and pin 4 DC 230 V or more 2 Vcc Gnd Between pin 5 and pin 4 DC 14 V or more 3 Vsp Gnd Between pin 7 and pin 4 After fluctuating 4 times between DC 1 7 to 6 1 V 1 sec ON and DC 0 V 1 sec OFF the DC motor trips Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any one of the above measured values is not normal Outdoor unit controller trouble Replace the controller Reference DC motor connector pin arrangement Pin 1 Vs white Pin 2 Not used Pin 3 Not used Pin 4 Gnd black Pin 5 Vcc red Pin 6 FG blue Pin 7 Vsp yellow Trouble symptom 3 Motor rotates for some time sever
45. cur This is normal and the sound will soon disappear Remote Control Unit e The remote control unit sends the setting condition to the air conditioner regularly at five minute intervals 11 SETTING THE TIMER QUIET Cc FAN SPEED NIGHT SETBACK Ec FLAP HIGH POWER In the descriptions below the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote control Temperature C e Time AM PM 1 How to set the present time Example To set to 10 30 pm 3 How to set the ON time Example To start operation at 7 10 am wew 1 Press the ON TIME setting button once 2 Press the Advance Return w button until AM 7 10 is displayed 3 Wait a few seconds and then the setting is complete The timer indication is displayed and the present ON time is shown The timer indication blinks The time can be set in 10 minute increments Holding down the button advances the time rapidly in 10 minute increments The timer indication stops blinking and the present Press the CLOCK button once if the time indicator is not flashing Press the Advance Return a w button until PM 10 30 is displayed Press the CLOCK button again The time indication alone flashes The time can be set in 1 minute increments Holding down the button advances the time rapidly in 10 minute increments
46. e and the temperature setting 2 Manual Operation AM ti1 na ON I OFF O LED CLEAN STERN ON L OFF O STEP 2 QUIET MODE CE STEP 1 FAN SPEED NIGHT SETBACK STEP 4 D COD i FLAP HIGH POWER STEP 5 C D QUIET MODE STEP 1 FAN SPEED NIGHT SETBACK C Ge FLAP HIGH POWER Check that the circuit breaker on the power panel is turned on Once mode is selected and the unit is preset by following the steps below you can have the air conditioner automatically bring the room to the desired temperature simply by pressing the ON OFF operation button STEP 1 Press the MODE selector button to Press the ON OFF operation button To stop the air conditioner press the ON OFF operation button again To change the temperature setting press the temperature setting buttons and change the setting to the desired temperature Ol 925 9 EG Check that the circuit breaker on the power panel is turned on If the automatic operation settings of the unit do not meet your needs press the setting buttons as described below and change the settings as desired Press the MODE selector button and select the desired mode For heating operation For dehumidifying operation For cooling operation For fan only operation STEP 2 To start the air conditioner press the ON OFF operation button STEP 3 Press the TEMP setting buttons to change the temperature setting to the desired te
47. earby heat sources that may affect performance of I INDOOR Tubing length L the unit UNIT e areas where leakage of flammable gas may be expected e places where large amounts of oil mist exist d e select an appropriate position from which every corner a of the room can be uniformly cooled High on a wall Fig 2 is best e select a location that will hold the weight of the unit CAUTION e select a location where tubing and drain hose have the shortest run to the outside Indoor unit wai e allow room for operation and maintenance as well as vor Dperadon 9t the air conditioner do not unrestricted air flow around the unit Fig 1 aie install wall mounted type TEN EN e install the unit within the maximum elevation indooriinits lees than E Eon difference H above or below the outdoor unit and 1 5 m from floor level 1 5m within a total tubing length L from the outdoor unit as S S AA IAN DAD detailed in Table 1 and Fig 2 BIOS yal e Install the indoor unit more than 1 meter away from ig any antenna or power lines or connecting wires used for television radio telephone security system or intercom Electrical noise from any of these sources may affect operation Table 1 Max Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of Length at Shipment Length L Difference H Additional Refrigerant
48. easily affected by dust or moisture compared with R22 thus be sure to temporarily cover the ends of the tubing with caps or tape prior to installation Never use 0 7mm thick copper tubing or tubing which is less than 0 8mm in thickness since air conditioners with R410A are subject to higher pressure than those using R22 and R407C e No addition of compressor oil for R410A No additional charge of compressor oil is permitted e No use of refrigerant other than R410A Never use a refrigerant other than R410A e If refrigerant R410A is exposed to fire Through welding etc toxic gas may be released when R410A refrigerant is exposed to fire Therefore be sure to provide ample ventilation during installation work e Caution in case of R410A leak Check for possible leak points with the special leak detector for R410A If a leak occurs inside the room immediately provide thorough ventilation 56 12 3 Tools Specifically for R410A e For servicing use the following tools for R410A Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Refrigerant recovery unit Tools specifically for R410A Vacuum pump with anti reverse flow 1 Solenoid valve installed type which prevents oil from flowing back into the unit when the power is off is recommended Vacuum pump 2 be used if the following adapter is attached e Vacuum pump adapter reverse flow prevention adapter 3 Solenoid valve
49. ele TTN EER ZW COP ZZA Auto and 3 steps Auto Hi Me Lo Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 41 35 28 22 41 35 28 22 Qt Quiet mode Outdoor Hi dB A 45 46 Refrigerant Tubing Connections Flare Type Max allowable tubing length at shipment 7 5 m Refrigerant Narrow tube mm in 6 35 1 4 Tube Diameter Wide tube mm in 9 52 3 8 Refrigerant Tube Kit Accessories Optional Air Clean Filter Dimensions amp Weight Indoor Unit Outdoor Unit Unit Dimensions 789 790 Package Dimensions Height Weight Net Shipping Shipping Volume m 06 XJ 2025 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 27 D B 19 W B Outdoor air temperature 35 C D B 24 C W B Heating Indoor air temperature 20 C D B Outdoor air temperature 7 C D B 6 C W B 6 Indoor Unit SAP KRV126EHDS Outdoor Unit SAP CRV126EHDS Se Mo UNE Performance Capacity kW 3 50 0 9to 3 9 4 80 0 9to 5 4 11 900 3 100 to 13 300 16 400 3 100 to 18 400 Air Circulation High m h Moisture Removal High 20 Running Amperes A 1260 250 to 1 600 EER ZWA COP ZW Auto and 3 steps Auto Hi Me Lo Airflow Direction Indoor Horizontal Vertical Operation Sound Indoor Hi Me Lo Qt dB A 42 35 28 22 42 36 29 22 Qt Quiet mode Outdoor Hi dB A 47 48 Refrigerant Tubing Connectio
50. en pin 5 and pin 3 Fluctuation between DC 1 7 to 6 1 V Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any one of the above measured values is not normal Indoor unit controller trouble Reference Trouble symptom 3 Trouble symptom 4 Trouble symptom 5 Replace the controller DC motor connector pin arrangement Pin 1 Vm red Pin 2 Not used Pin 3 Gnd black Pin 4 Vcc white Pin 5 Vs yellow Pin 6 PG blue Motor rotates for some time several seconds but then quickly stops when the indoor unit operates There is trouble in the system that provides feedback of motor rotation speed from the motor to the indoor unit controller Fan motor rotation speed does not change during indoor unit operation Fan motor rotation speed varies excessively during indoor unit operation Remedy for symptom 3 to 5 It is not possible to identify whether the trouble is indoor unit controller trouble or motor trouble Therefore first replace the indoor unit controller then if necessary replace the DC motor 48 10 4 2 Outdoor Fan Motor e This outdoor DC fan motor contains an internal control PCB Therefore it is not possible to measure the coil resistance and the following procedure should be used to check the motor e Perform the trouble diagnosis by Test Run mode described on Installation Instructions Important A Turn OFF the power before conne
51. en set to 28 C temperature indication 8 High power operation 9 Quiet operation 10 LED CLEAN operation Ol 925 5 EG 5 REMOTE CONTROL UNIT Transmitter When you press the buttons on the remote control unit the mark appears in the display to transmit the setting changes to the receiver in the air conditioner Display Information on the operating conditions is displayed while the remote control unit is switched on If the unit is turned off FLAP setting and FAN SPEED setting are not displayed LED CLEAN button Me 79 If this button is pressed during AUTO HEAT DRY COOL or FAN operation the UV anti bacterial unit is activated for one hour and cleans the air blown from the air conditioner QUIET button 0101198 When you press this button the fan rotates slower than the fan speed setting to provide a quieter operating sound FAN SPEED selector button 98 The air conditioner automatically decides the fan speeds ss High fan speed ss Medium fan speed ss Low fan speed FLAP button Press this button either to select the setting of the airflow direction to the auto flap in each mode or one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically 1 Auto flap setting If selected in a heating operation the flap is set to position 3 in the following chart If selected in a
52. eptible to noise 2 Locations near amateur radio short wave operation Insulate for noise or stations 2 Indicator lamps may flicker distance from the noise source 3 Locations near electronic sewing machines 1 Use shielded wires and arc welding machines 2 Move unit away from the noise source 2 Electromagnetic interference This refers to noise generated by high speed switching of the microcomputer and compressor This noise radiates through space and returns to the electric wiring affecting any wireless devices televisions radios etc located nearby 1 A television or radio is located near the 1 Noise appears in the television picture 1 Select a separate power source A C and A C wiring or the picture is distorted Keep the A C and A C wiring at least 1 meter 2 The antenna cable for a television or 2 Static occurs in the radio sound away from wireless devices and antenna cables Ls is located close to the A C and A C Change the wireless device s antenna to a high VIE sensitivity antenna 3 Locations where television and radio Change the antenna cable to a BS coaxial cable signals are weak Use a noise filter for the wireless device Use a signal booster 50 10 6 Checking and Troubleshooting when the Front Panel fails to work 10 6 1 Checking the Front Panel when it fails to work during operation 1 Is the grille mounted in place Check in particular that the upper right screw
53. hat the air conditioner operates correctly do not install the remote control unit in the following places In direct sunlight Behind a curtain or other place where it is covered More than 8 m away from the air conditioner In the path of the air conditioner s airstream Where it may become extremely hot or cold Where it may be subject to electrical or magnetic interference Where there is an obstacle between the remote control unit and the air conditioner since a check signal is sent from the remote control unit every 5 minutes 7 3 1 Mounting on a Wall Before mounting the remote control unit press the ON OFF operation button at the mounting location to make sure that Remote control unit mount the air conditioner operates from that T location The indoor unit Mounting screws should make a beeping TOS SOIT ale sound to indicate that it has received the signal To prevent loss of the remote control unit you can connect the remote control unit to the mount by passing a string through the remote control unit and attachment hole To take out the remote control unit pull it forward Fig 7 26 7 4 How to Test Run the Air Conditioner After turning on power to the air conditioner use the remote controller and follow the steps below to conduct the test run 1 Set the remote controller in Test Run mode Fig 8a a Press and hold the LED CLEAN button b Then press and hold the 1HR
54. he 1 HR TIMER button is pressed the display changes as shown below Press this button 2 times to change the display to oP 7 Li address setting Fig 15 RT 508 me Test run mode iL 3 Self diagnostic mode m p button Address setting mode 1 HR TIMER button 5 oP 7 has now been selected for address setting 6 Press the ON OFF operation button on the remote controller Fig 15 Check that the beep signalreceived sound is heard from the second indoor unit approximately 5 times The sound Gud TER GES you hear is the signal that the remote controller address has been changed 7 Finally press the remote controller ACL reset button to cancel the blinking oP 7 display Fig gt Ac 5 Changing of the second remote controller address is ACL Reset now completed QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER v gt GLOCK O button Fig 15 29 8 2 Removing and Mounting the Drain Hose Ture the hose r 1 Before removing the drain hose check the location of the drain cramp at the end of the hose Turn the hose counterclockwise to remove the drain cramp from the stopper and pull the hose out 2 To mount the drain hose insert the hose all the way into the outlet of the drain pan with the drain cramp face down Then put it in place so that the drain cramp is placed beneath the stopper After mounting it be sure
55. ide air temperature 15 C or lower is as follows Example of operation in AUTO mode with the set room temperature DRY A and DRY B at 23 C The compressor operates a cycle of 3 minutes ON and 6 Room temp minutes OFF repeatedly B PAM oc control Compressor In order to further improve inverter performance control is switched between PWM control at low operation speeds and PAM control at high operation speeds making the most effective use of power 39 This function acts to raise the power but keeps the AC system in the same operating mode This function is set with the HIGH POWER button on the remote controller It can be set regardless of the temperature and fan speed settings e HIGH POWER operation from remote controller The unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Frequency 30 min 5 min V nd Start MAX Time NOTE When HIGH POWER operation ends the unit operates at low Hz for 5 minutes regardless of the thermostat OFF conditions When in DRY mode operation is in the cooling zone M Lamp colors OPERATION lamp HEAT operation DRY operation COOL operation FAN operation DEFROSTING operation Red Orange Green Green Red and Orange alternately TIMER lamp Green LED CLEAN lamp Green M Timer backup Operation stops if there are no operator controls for 25 hours or longer
56. ins off through this hose LED CLEAN This lamp lights during operation in the UV lamp anti bacterial mode Outdoor The outdoor unit contains the compressor fan Condensin motor heat exchanger coil and other bit 9 electrical components NOTE Air outlet e The front panel of the indoor unit operates automatically when starting and stopping operation The panel opens slightly when operation starts and closes when operation stops e The units display lamps are dimmed during operation in the NIGHT SETBACK mode 4 OI 925 4 EG REMOTE CONTROL UNIT DISPLAY Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown EG Displayed when setting timer Displayed when the time display is set to 12 hour time Symbols 1 Operation mode 4 Timer 24 hour clock with ON OFF program Timer HEAT wanne ON Timer on ON MILD OFF OFF 1 hour OFF Timer 1H 5 NIGHT SETBACK 2 Fan speed 6 Confirmation Automatic operation of transmission aliti ecc 7 Auto flap indication MEDIUM Flap angle indication K RE Sweep indication 3 Temperature setting 16 30 C Wh
57. into contact with the top of the grooves on the right and left sides of the air conditioner and then push firmly until the arm shafts click into place Fig 11 6 After closing the front panel press firmly on the parts indicated by the arrows to securely fasten the panel in place Fig 12 Fig 11 NOTE Check that no gap exists between the main unit and grille Sa Fig 12 28 8 MAINTENANCE 8 1 Address Setting of the Remote ON Control Unit S i lt J SES The address can be set in order to prevent OSs k interference between remote controllers when two Indoor units are installed near each other The o address is normally set to A To set a different address it is necessary to change the address on the Fig 13 second remote controller NOTE Once changed you cannot restore the original address setting of the air conditioner 1 Switch on the power source 2 Break the address setting tab marked A on the second remote controller to change the address Fig 13 When the tab is removed the adress is ak automatically set to B Fig 14 3 Press and hold the remote controller LED CLEAN Fig 14 button and 1 HR TIMER button At the same time press the ACL reset button Use a thin object such as the tip of a pen to press the ACL button When this has been done oP 1 test run appears blinking in the remote controller clock display area 4 Each time t
58. ion conducted is indicated by the changing color of the OPERATION lamp NOTE Press the button and select the lamp color that suits your preference for operation This illustration is based on the external view of a standard model Cooling Heating Consequently the shape may differ from that of the air conditioner abafation operation Stop which you have selected Gea red lamp off This air conditioner consists of an indoor unit and an outdoor unit You can control the air conditioner with the remote control unit Do not set at the TEST for normal Air from the room is drawn into this section N CAUTION operation and passes through air filters which remove dust This mode is used only when servicing the air mind Conditioned air is blown out of the air conditioner OO A OPERATION This lamp lights when the system is in the Remote The wireless remote control unit controls lamp continuous AUTO red or green HEAT red Control Unit power ON OFF operation mode selection DRY orange COOL green and FAN temperature fan speed timer setting and air green mode sweeping The OPERATION lamp lights up red and orange alternately when the system is Refrigerant indoor and outdoor units are connected defrosting by copper tubes through which refrigerant gas TUDES flows TIMER lamp This lamp lights when the system is being controlled by the timer Drain Hose Moisture in the room condenses and dra
59. ions Overload prevention during heating During HEAT operation the temperature of the indoor heat exchanger is used to control the frequency and lessen the load on the compressor before the protective device is activated Indoor heat exchanger A Control start B Control end Indoor heat exchanger temperature C a Area Automatic capacity control b When Point A has been exceeded the operation frequency is reduced by a certain proportion c Area Frequency increase is prohibited d At Point B and below overload prevention is ended and control is the same as in the a area ll Freeze prevention During COOL or DRY operation freezing is detected and operation is stopped when the temperature of the indoor heat exchanger matches the conditions below 1 Freeze prevention operation is engaged when the temperature of the indoor heat exchanger is below 6 C 2 Restart after freeze prevention operation occurs when the temperature of the indoor heat exchanger reaches 8 C or above co o gt temperature C N Indoor heat exchanger Area Automatic capacity control When the temperature drops below Point A the operation frequency is reduced by a certain proportion Area Frequency increase is prohibited When the temperature reaches Point C or above freezing prevention is ended and control is the same as in the a area When the temperature drops to below 2 C continu
60. is adequately tightened Upper right screw Screw Screw cover 2 Are the 4 levers on the rear of the front panel tightened The figure shows the loosened condition If the levers are in loosen the front panel does not work correctly ibo panel Sub panel 3 Is the front panel correctly mounted 1 Holding the part of the front panel adjacent to the arm 2 Close the front panel and Next press the arm shaft against the upper part of the push at the arrow to firmly fix it groove which is located on the main body while keeping the front panel almost horizontally and push it firmly until it makes a sound of being seated Front panel which is attached with a sub panel on its rear side G OES TA D RE 51 10 6 2 Making a Diagnosis of the Panel Motor 1 If no abnormality was found in 1 to 3 of the previous section then carry out diagnosis of the panel motor which activated the front panel 2 Remove the panel motor connector Panel motor Connector Panel motor Electrical component box For details see 8 4 Removing the electrical component box in Maintenance section 3 Measuring coil resistance of the panel motor Carry out measurement of the resistances as listed below Coil Resistance GRAY GRAY When a measured coil resistance deviates
61. is the same as the voltage shown on the nameplate N I e Do not install this air conditioner where there are fumes or flammable gases or in an extremely humid space such as a greenhouse Do not install the air conditioner where excessively high heat generating objects are placed Avoid To protect the air conditioner from heavy corrosion avoid installing the outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa Ol 925 3 EG ELECTRICAL REQUIREMENTS 1 All wiring must conform to the local electrical codes Consult your dealer or a qualified electrician for details 2 Each unit must be properly grounded with a ground or earth wire or through the supply wiring 3 Wiring must be done by a qualified electrician SAFETY INSTRUCTIONS e Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help e This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this Instruction Manual WARNING e Never use or store gasoline or other flammable vapor or liquid near the N air conditioner it is very dangerous This air conditioner has no ventilator for intaking fresh air from outdoors You must open doors or windows frequently when you use gas or oil heating appliances in the same room which consume a lot of
62. lay and the remote control unit will automatically adjust the set temperature to save energy HIGH POWER button 5 If this button is pressed during HEAT DRY COOL or FAN operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1step above HIGH CLOCK button Time display selector button This switches the time display between 24 hour time and 12 hour time ACL button ALL CLEAR Puts the remote control unit into pre operation status Always press this button after replacing the batteries The illustration above pictures the remote control unit after the cover has been opened ON 1 OFF Cover closed The remote control unit sends the temperature signal to the air conditioner regularly at five minute intervals If the signal from the remote control unit stops for more than 15 minutes due to the loss of the remote control unit or other trouble the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature In these cases the temperature around the remote control unit may differ from the temperature detected at the air conditioner s position Ol 925 7 EG USING THE REMOTE CONTROL UNIT HOW TO INSTALL BATTERIES QUIET MODE C C OD FAN SPEED NIGHT SETBACK C C D FLAP HIGH POWER TIMER lt gt lt lt Initially the S M switch is set to S Leave this position SENSOR TA
63. lean soft cloth If these parts are stained use a clean cloth moistened with a mild liquid detergent When cleaning the grille be careful not to force the vanes out of place 1 Never use solvents or harsh N caution chemicals when cleaning the indoor unit Do not wipe the plastic casing using very hot water 2 Some metal edges and the fins are sharp and may cause injury if handled improperly be especially careful when you clean these parts 3 The internal coil and other components of the outdoor unit must be cleaned every year Consult your dealer or service center 14 Removing the front panel Push the front panel all the way upward Pull while supporting the nearest point of the arms toward you e Remove the sub grill attached to the rear of the front panel after setting the four levers to loosen Front panel S uu Sub grille RN Z Washing the front panel with water e Clean the front panel gently using a soft sponge or the like Then wipe away any remaining moisture e Neutral detergent may be used to remove stubborn dirt Then rinse thoroughly with water and wipe away any remaining moisture Remounting the front panel e Reattach the subgrille onto the front panel then tighten the four levers e Support the nearest point of the front panel keeping it horizontal then push arm axis to the grooves at the top of the indoor unit
64. local dealer model STK FDXB CONTENTS Page FEATURES as assa aaa es Aa aa 2 PRODUGT INFORMATION zeit eerden a i a etae 3 Mi cinilbeids9 MM A quta 3 INSTALLATION LOCATION erre a a a banni 3 ELEGTRIGA IREGUIREMEN TES uu uy uuu uy uku ua ak nasa sila la 3 SAFETY INSTRUC KHON sn O rni oc cet 3 NAMES OP DARO uuu ERE m IT T TTE 4 USING THE REMOTE GONTROLDJAJINUE funera iQ id deo a tend Eo isa 8 OPERATION WITH THE REMOTE CONTROL UNIT enne eenenen eenen 9 Te Automatic DAN ebde dire taste etn ed tee eeen ennen 9 2 OPTA Pm 9 Adjusting the Fan Speed annuus enreennnenreenneerennanenneennenenvennensnennennvennsen vennen 10 AME RO nl 10 OS Nio Setback eee quies kam usakuna ias 22 D 10 SURE gt eje ur 10 TAIGH POWER MOB disse n denn 11 ME ZIPEGIM zi do LP 11 SPECIAL REMARKS pu uy a s dete on teni tas NA ocd se ard oad 11 SETTING THE TIMER uyu yi a a oi dee 12 USING THE T3HOUR OFF TIMER serdar Oo geo Saee He es SR ete 13 APS FOR ENERGY SAVING Eter ku l u cae a a hie eese ode ae enin deco es 13 ADJUSTING THE AIRFLOW DIRBECTIONuZu tiges eden adieu 13 OPERATION WITHOUT THE REMOTE CONTROL UNIT eenen enen 14 CAREAND CLEANING
65. m m m g m If total tubing length becomes 7 5 to 15 m charge additional refrigerant R410A by 15 g m No additional charge of compressor oil is necessary 23 7 1 2 Outdoor Unit NO 2 Exhaust fan AVOID Hot air 2 heat sources exhaust fans etc Fig 4 Z Heat source e damp humid or uneven locations DO Outdoor unit e position the outdoor unit in a protected location where snow will not blow into it e choose a place as cool as possible Fig 4 e choose a place that is well ventilated e allow enough room around the unit for air intake exhaust and possible maintenance Fig 5a ODbstacIe above e provide a solid base level concrete pad concrete N N N ZZ Z ZZ ZZ Z ZZ Z ZZ ZZ Z Z block 10 x 40 cm beams or equal a minimum of _ Min 5 em Min idi is 2 10 cm above ground level to reduce humidity and At protect the unit against possible water damage and decreased service life Fig 5a 5 cm Air discharge Air discharge Obstacle e Install cushion rubber under unit s feet to reduce N N SON N UNS CNN NC NS Ne vibration and noise Fig 5b e use lug bolts or equal to bolt down unit reducing Ground 5cm Air intake vibration and noise Anchor bolts 4 pcs e Install in a location where no antenna of a television or radio exists within 3 meters
66. mperature STEP 1 Adjustable temperature range 86 F max 60 F min 30 C max 16 C min STEP 4 Set the FAN SPEED selector button to the setting you want STEP 5 Press the FLAP button and set the airflow direction as desired Refer to ADJUSTING THE AIRFLOW DIRECTION on page 13 To stop the air conditioner press the ON OFF operation button again or e Choose the best position in the room for the remote control unit which also acts as the sensor for room comfort and transmits the operating instructions Once you ve found this best position always keep the remote control unit there This appliance has a built in 5 minute time delay circuit to ensure reliable operation When the operation button is pressed the compressor will start running within three minutes In the event of power failure the unit will stop 3 Adjusting the Fan Speed A Automatic fan speed Simply set the FAN SPEED selector button to the position This automatically sets the best fan speed for the room temperature B Manual fan speed If you want to adjust fan speed manually during operation just set the FAN SPEED selector button as desired 999 9 or 4 Fan Only LED ON OFF O CLEAN STEP 2 QUIET MODE ammo C STEP 1 FAN SPEED NIGHT SETBACK STEP 3 E Jc If you want to circulate air without any temperature control follow these steps STEP 1 Press the MODE selector but
67. n Motor Release the fan motor lead from hook 8 9 1 Removing the Fan Motor Fm unisaq Fan motor 1 Loosen the fan mounting screw with hex wrench of 2 5 mm opposite side distance 2 Remove 2 screws and the fan motor mounting bracket 3 Remove the fan motor while pulling out the shaft Hex wrench Loosen the screw as you use P flashlight Fan motor mounting bracket Pull out it in the arrow direction 8 9 2 Mounting the Fan Motor To mount the motor reverse the steps for removal Fan mounting screw Fan motor lead position 45 Motor cover Fan mounting Screw Motor cover window Position and fix the fan mounting screw near the center of motor cover window Hex wrench Fan mounting screw tightening torgue 2 45 0 49N m 25 0 5kgf m Fan motor mounting bracket 36 8 10 Removing the Fan Be sure to proceed after having removed the drain pan Air Outlet Ass y and fan motor according to sections 8 8 and 8 9 1 Remove 3 screws Heat exchanger 2 Uphold the left side of the head exchanger so that it is not seated anywhere so as to remove the fan Pull the fan bearing toward you and remove it and remove the fan as pulling it from underneath Heat exchanger M UN oh 2 X Fan bearing Alen When sliding the heat exchanger or remove the fan be sure to wear work gloves so
68. n the air outlet directing air in a sweeping motion around the room and providing comfort in every corner Auto Flap Control This automatically sets the flap to the optimum position during heating cooling and drying operation Automatic Switching between Cooling and Heating This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting Hot Start Heating System Right from the start the air is warm and comfortable This system prevents any cold blasts at the beginning while the heat pump is warming up or even defrosting Automatic Restart Function for Power Failure Even when power failure occurs preset programmed operation can be reactivated once power resumes High Power Operation If not in Auto Operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Quiet Operation The fan rotates slower than the fan speed setting to provide a quieter operating sound LED Clean Operation During operation the UV anti bacteria unit is activated for one hour and cleans the air blown from the air conditioner Anti Mold Filter This unit is equipped with an anti mold filter that inhibits the growth of mold and bacteria Air Clean Filter An air filter that eliminates unpleasant odors and cleans the air is available Purchase a replacement filter at your
69. ne hour from that point in time and then stops t is not possible to use the OFF Timer and 1 Hour OFF Timer together Whichever function is set last takes precedence If the 1 HR TIMER button is pressed while the TIMER OFF function operates the OFF Timer is cancelled and the unit will stop operating one hour later 2 Operation together with the daily ON OFF repeat timer The 1 Hour OFF Timer setting is given priority over the DAILY ON OFF REPEAT setting TIPS FOR ENERGY SAVING Do not e Block the air intake and outlet of the unit If they are obstructed the unit will not work well and may be damaged Let direct sunlight into the room Use sunshades blinds or curtains If the walls and ceiling of the room are warmed by the sun it will take longer to cool the room Do Always try to keep the air filter clean Refer to CARE AND CLEANING A clogged filter will impair the performance of the unit To prevent conditioned air from escaping keep windows doors and any other openings closed ADJUSTING THE AIRFLOW DIRECTION 1 Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right Ol 925 13 EG N caution When the humidity is high the vertical vanes should be in the front position during the cooling or dehumidifying operation If the vertical vanes are positioned all of the way to the right or left condensation may begin to f
70. ng temperature Press the NIGHT SETBACK button 6 QUIET Mode 171 L LED _ON OFF CLEAN QUIET Mode is used to reduce the fan sound of the indoor unit Press the QUIET button The 0198 mark appears in the display To cancel press QUIET button again In QUIET Mode the fan rotates at a slower speed than the fan speed setting e f the unit is already operating with a very low airflow the fan sound may not change even if the QUIET button is pressed Ol 925 10 EG 7 HIGH POWER Mode LED ON 1 OFF CLEAN 9 QUIET MODE Co een FAN SPEED NIGHT SETBACK C oc FLAP HIGH POWER Cc HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes except automatic operation Press the HIGH POWER button The gt J mark appears in the display To cancel press HIGH POWER button again e When the HIGH POWER button is pressed the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High e HIGH POWER Mode cannot be used when the operation mode is Automatic Operation e QUIET Mode and HIGH POWER Mode cannot be used at the same time e When set to High fan speed during heating operation the fan runs at High fan speed even though the L7 mark is displayed Depending on the operating conditions the fan speed may be increased by a small amount only 8 LED CLEAN Mode In L
71. nk due to a sudden temperature change In this event a clicking sound may occur OPERATION lamp lights but outdoor unit will not run The use of cellular phones near the air conditioner may cause disturbance to its normal operation 2 Consult your dealer 1 Turn off the power then restart the air conditioner after a while OPERATING RANGE The air conditioner is operable within the temperature ranges as listed below Temperature Indoor air Outdoor air temperature temperature COOLING Max 32 C 43 C DB 23 C WB Min 19 C DB 15 C DB 14 C WB HEATING Max 27 C DB 24 C DB 18 C WB Min 16 C DB DB 15 C WB 15 SANYO SANYO Electric co Ltd Osaka Japan Jan 2007 Printed in Japan T
72. ns Flare Type Max allowable tubing length at shipment 7 5 m Refrigerant Narrow tube mm in 6 35 1 4 Tube Diameter Wide tube mm in 9 52 3 8 Refrigerant Tube Kit Accessories Optional Air Clean Filter Dimensions amp Weight Indoor Unit Outdoor Unit Unit Dimensions 789 790 Package Dimensions Height Weight Net Shipping Shipping Volume m 06 XJ 025 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 27 D B 19 W B Outdoor air temperature 35 C D B 24 C W B Heating Indoor air temperature 20 C D B Outdoor air temperature 7 C D B 6 C W B 7 2 2 Major Component Specifications 2 2 1 Indoor Unit Indoor Unit SAP KRV96EHDS Control PCB CB KRV96EHDS Control Circuit Fuse 250V 3 15A Remote Control Unit RCS 6MHVPUSWAE Q ty Dia and Length mm 1 D85 L551 FNo ofPoles YP 8 Ambient Temp 20 C Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Flap Motor Model For Upper Flap For Lower Flap Coil Resistance Ohm Each Pair of Terminal 70 7 Ambient Temp 25 C Panel Motor Stepping Motor Model 2425 DC 5V Coil Resistance Ohm Each Pair of Terminal 70 796 Ambient Temp 25 C Heat Exchanger Coil DATA SUBJECT TO CHANGE WITHOUT NOTICE Indoor Unit SAP KRV126EHDS Control PCB CB KRV126EHDS
73. ontact the dealer where you made the purchase between C and F Normally the tabs on the remote control unit should not be bent Ol 925 6 EG NENNEN Sensor A temperature sensor inside the remote control unit senses the room temperature ON OFF operation button This button is for turning the air conditioner on and off 1 HR TIMER button 1 HOUR OFF TIMER When you press this button regardless of whether the unit is operating or stopping the unit operates for one hour and then shuts down Temperature setting buttons TEMP Press the la button to increase the set temperature Press the Cv 1 button to reduce the set temperature The temperature setting changes by 1 C or 2 F each time one of the TEMP buttons is pressed MODE selector button Use this button to select AUTO HEAT DRY COOL or FAN mode AUTO When this setting is selected the air conditioner calculates the difference between the thermostat setting and the room temperature and automatically switches to the COOL or HEAT mode as appropriate HEAT The air conditioner makes the room warmer DRY The air conditioner reduces the humidity in the room COOL sk The air conditioner makes the room cooler FAN 88 The air conditioner works only as a circulation fan NIGHT SETBACK button LEAN For details see 5 Night Setback Mode When you press this button in the HEAT DRY or COOL mode the mark appears in the disp
74. or and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers When Installing In a Ceiling or Wall Make sure the ceiling wall is strong enough to hold the unit s weight It may be necessary to construct a strong wood or metal frame to provide added support In a Room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to walls and floors In Moist or Uneven Locations Use a raised concrete pad or concrete blocks to provide a solid level foundation for the outdoor unit This prevents water damage and abnormal vibration In an Area with High Winds Securely anchor the outdoor unit down with bolts and a metal frame Provide a suitable air baffle In a Snowy Area for Heat Pump type Systems Install the outdoor unit on a raised platform that is higher than drifting snow Provide snow vents When Connecting Refrigerant Tubing Use the flare method for connecting tubing e Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them then tighten the nut with a torque wrench for a leak free connection e Check carefully for leaks before starting the test run When Servicing e Turn the power off at the main power box mains before opening the unit to check or repair electrical parts and wiring Keep y
75. ored in memory even when the power is not ON Follow the procedure below to perform diagnostics OPERATION button TEST button PROCEDURE 1 Turn the power supply switch ON However the A C itself should remain stopped 2 Press and hold the TEST RUN button on the main unit controller until the buzzer sounds 1 time At this time releasing the TEST RUN button starts self diagnostics 3 If there is a sensor failure or a protective function has activated self diagnostics lamps 1 2 and 3 will illuminate in the following pattern 5 seconds blinking illuminated 2 seconds OFF Buzzer sounds once while lamps are OFF If there is no trouble then self diagnostics lamps 1 2 and 3 do not illuminate and the buzzer does not sound 4 Diagnostics is completed when the buzzer sounds 3 times IMPORTANT After repairs are carried out be sure to press and hold the TEST RUN button until the buzzer sounds 2 times When the TEST RUN button is released the buzzer sounds 1 long beep and the diagnosis results are erased 43 1 Self diagnostics Lamps 1 OPERATION lamp REMOTE CONTROL receiver OPERATION TIMER LED CLEAN 2 TIMER lamp 3 LED CLEAN lamp f there is no trouble the lamps neither blink nor illuminate e Since the indications cover various units the corresponding items listed below may not be present in some models Indication on indoor unit Blinking Illuminated LED Clean Pus
76. orm around the air vent and drip down 2 Vertical The vertical airflow can be adjusted by moving the flap with the remote control unit Do not move the flap with your hands Confirm that the remote control unit has been turned on Use the FLAP button to set either the sweep function or one of the six airflow direction settings QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER A Sweep function q The flap starts moving 7 up and down to deliver air over the sweep range B Setting the airflow manually 4 Referring to the above illustration use the COOL Z FLAP buttontosetthe DRY airflow direction within FAN the range used during the heating cooling or dehumidifying operation C Auto flap function The flap is set AN to the VV recommended position e The flap automatically closes when the unit is off During the heating operation the fan speed will be very low and the flap will be in the horizontal position position until the air being blown out of the unit begins to warm Once the air warms up the flap position and fan speed change to the settings specified with the remote control N caution Use the FLAP button on the remote control to adjust the position of the flap If you move the flap by hand the flap position according to the remote control and the actual flap position may no longer match If this should happen shut off the unit wait for the flap to cl
77. ose and then turn on the unit again the flap position will now be normal again e Do not have the flap pointed down during cooling operation Condensation may begin to form around the air vent and drip down 13 OPERATION WITHOUT THE REMOTE CONTROL UNIT INDOOR UNIT NZOEE TEST button OPERATION button E If you have lost the remote control unit or it has trouble follow the steps below OPERATION lamp When the air conditioner is not running Each time the OPERATION button is pressed with a small pointed tool the operation mode changes cyclically by changing the color of the OPERATION lamp Cooling operation Heating 9 green operation red lamp off tT The temperature is set to the room temperature minus 2 C during the cooling operation and to the room temperature plus 2 C during the heating operation and the fan speed and flap are set to Auto N caution For normal operation do not set to TEST which is used only for servicing the air conditioner CARE AND CLEANING 1 For safety be sure to turn the air ANE conditioner off and also to disconnect the power before cleaning Do not pour water on the indoor unit to clean it This will damage the internal components and cause an electric shock hazard Casing and Grille Indoor Unit Clean the casing and grille of the indoor unit with a vacuum cleaner brush or wipe them with a c
78. otor Screw 1 Remove the connector of panel motor bet 2 Remove the screw to remove the panel motor Bm BN Connector 33 8 7 Removing and Mounting the UV antibacterial filtration unit UV antibacterial filtration unit UV unit 8 7 1 Removing the UV unit 1 Remove the screw and release 4 tabs Remove the UV unit cover UV unit cover i UV unit 2 Slightly roatate the UV unit to torward you Arrow 1 and pull it out Arrow 2 34 8 7 2 Mounting the UV unit 1 Insert the UV unit into the joint section like the right side figure l 8 8 Removing the Drain Pan Air Outlet Ass y Hemove the hooks 1 2 and 3 which secure the drain pan 1 Right side drain pan Press the back right in the arrow direction and the hooked part can be released e C Drain pan gt gt iet a o 2 Center part of the air outlet Press the center part of the air outlet in the arrow direction and the tab can be released The center part of the air outlet may be removed together with the right side drain pan when it is removed Insulation material 35 3 Left side drain pan Press the back left in the arrow direction and the PES H1 3 id hooked part can be released el SQ A CER 7 4 Removing the drain hose WM A DU Refer to 8 2 Removing and Mounting the Drain nc Hose for the details Cg lt 7 Drain pan 8 9 Removing and Mounting the Fa
79. our fingers and clothing away from any moving parts Clean up the site after you finish remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced Others CAUTION Ventilate any enclosed areas when installing or testing the refrigeration system Escaped refrigerant gas on contact with fire or heat can produce dangerously toxic gas Confirm upon completing installation that no refrigerant gas is leaking If escaped gas comes in contact with a stove gas water heater electric room heater or other heat source it can produce dangerously toxic gas Table of Contents le OPERATING RANGE uu uu uuu xx RUM Rs Bst oa adbuc Gast agn 2 SPECIFICATIONS Pol WAIL epeecilicCallOlls heden 2 2 Major Component Specifications 2 3 Other Component Specifications nnn nnns DIMENSIONAL DATA iu uuu pou MR a al aa a 4 REFRIGERANT FLOW DIAGRAM 4 1 Hhelkigerat FONDIAGFAM zen rennend ar A awake 5 PERFORMANCE DATA 5 1 5 2 Temperature Charts u uuu T S Air Trew Distance GRAMS uuu yu ka 6 ELECTRICAL DATA 6 1 6 2 Flegal hafa SES A RN Electric Winnog Diagrams digests sald sags acids rem 7 INS
80. ously for 2 minutes or longer the compressor stops Once the freeze condition is detected the air conditioner will work less than the maximum frequency until it is turned off NOTE The Freeze Prevention Control during the Low Ambient Cooling Mode outside air temperature 15 C or lower is as follows e The compressor stops when the temperature of indoor heat exchanger becomes less than 2 C The compressor restarts when the temperature of indoor heat exchanger becomes 8 C or higher 41 B Cold air prevention during heating During heating the fan speed is set to LL very low or stopped As the temperature of the indoor heat exchanger rises the fan speed is changed to the set speed Set fan speed Normal operation At start of operation LL Stopped 25 30 Approx 40 _ Indoor heat exchanger temperature C NOTE The fan speed is forcibly changed to LL beginning 30 seconds after the thermostat turns OFF e Normal operation refers to operation when the room temperature has approached the set temperature When HEAT operation starts the indoor fan is stopped until the temperature of the indoor heat exchanger reaches 20 C or higher or until the room temperature reaches 15 C or higher Compressor discharge temperature control This function controls the operation frequency to prevent the compressor discharge temperature from rising more than a specified temperature
81. position of the remaining refrigerant Therefore do not add new refrigerant Instead recover the remaining refrigerant with the refrigerant recovery unit Then after evacuation totally recharge the specified amount of refrigerant with the new refrigerant at its normal mixed composition state in liquid phase e When refrigerant R410A is used the composition will differ depending on whether it is in gaseous or liquid phase and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state Thus always charge the refrigerant while it is in liquid phase AN sn Ether type oil is used for compressor oil for R410A type units which is different from the mineral oil used for R22 Thus more attention to moisture prevention and faster replacement work compared with conventional models are required 12 2 Checklist before Servicing Use a clutch type flare tool for R410A or the conventional flare tool Note that sizes of the resultant flares differ between these two tools Where a conventional flare tool is used make sure to observe A Specification amount of extrusion by using the flare spacer Specification A Diameter of tube D Flare tool for R410A Conventional flare tool for R22 Dia 6 35 mm 1 4 Dia 12 7 mm 1 2 Dia 15 88 mm 5 8 e Size of flare LL Flare tool for R410A Conventional flare tool R22 55 e Tubing precautions e Refrigerant R410A is more
82. quid state using the service port of the wide tube service valve The proper amount is listed on the unit s nameplate When the entire amount cannot be charged all at once charge gradually while operating the unit in Cooling Operation CAUTION Never charge a large amount of liquid refrigerant at once to the unit This may cause damage to the compressor NS Single valve Charge liquid refrigerant with cylinder in up side down position e When charging with a refrigerant cylinder use an electronic scale for charging refrigerant In this Fig 1 case if the volume of refrigerant in the cylinder becomes less than 20 of the fully charged Valve amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the charging cylinder is less than 20 Also charge the minimum necessary amount to the charging cylinder before using it to charge the air conditioning unit Example In case of charging refrigerant to a unit requiring N 2060 using a capacity of a 10Kg Synd Single valve with siphon tube minimum necessary amount for the cylinder is Charge with cylinder in normal position 0 76 10 x 0 20 2 76Kg For the remaining refrigerant refer to the instructions of the refrigerant manufacturer LN Fig 2 e l using a charging cylinder transfer the specified amount of liquid refrigerant from the refrigerant cylinder to the charging cylinder Charging Prepare an evacu
83. rd in ex wire breaking or connection error etc the indoor unit and J B 47 10 4 Trouble Diagnosis of Fan Motor 10 4 1 Indoor Fan Motor e This indoor DC fan motor contains an internal control PCB Therefore it is not possible to measure the coil resistance and the following procedure should be used to check the motor e To perform diagnosis operate the unit in cooling mode with indoor fan speed High Next make sure that the indoor unit receive the signals from the remote controller when the ON OFF operation button is pressed Important A Turn OFF the power before connecting or disconnecting the motor connectors B When performing voltage measurement at the indoor controller connector for 3 in the table below the DC motor will trip and voltage output will stop approximately 1 minute after operation is started For this reason to measure the voltage again turn OFF the unit once using the remote controller and then start the air conditioner again Trouble symptom 1 The fan does not stop when the unit stops Indoor unit controller trouble Trouble symptom 2 The fan motor does not rotate when the unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the indoor unit controller 3 locations Measurement location 1 Vm Gnd Between pin 1 and pin 3 DC 230 V or more 2 Vcc Gnd Between pin 4 and pin 3 DC 14 V or more 3 Vs Gnd Betwe
84. rogram e Press the CANCEL button When either an ON or OFF timer is to be canceled press the button corresponding to the timer whose program is to be canceled and then press the CANCEL button The airflow direction fan speed and temperature setting can be changed after a timer program has been set even when the unit is stopped Even when operation is stopped during an ON timer program the unit will start operating when the set time is reached provided that the program is not canceled e When the ON timer and OFF timer are set to the same time the timer operates as if it is turned off Ol 925 12 EG USING THE 1 HOUR OFF TIMER 1 1 Hour OFF Timer LED CLEAN ON I OFF O This function causes the unit to operate for one hour and then stop regardless of whether the unit is on or off when this button is pressed The indicator in the display indicates that this function is operating Setting procedure Regardless of whether the unit is operating or stopped press the 1 HR TIMER button appears in the display Cancellation procedure Press the ON OFF operation button to turn the unit off wait for the unit to stop operating and then press the ON OFF operation button again The 1 Hour Timer function is now cancelled and the unit operates normally f while the 1 Hour Timer function is operating the 1HR TIMER button is pressed once to cancel the function and then again the unit continues to operate for o
85. t _99 C t gt 16 C cut off 10 TROUBLESHOOTING 10 1 Precautions before Performing Inspection or Repair After checking the self diagnostics monitor turn the power OFF before starting inspection or repair High capacity electrolytic capacitors are used inside the outdoor unit controller inverter They retain an electrical charge charging voltage DC 310 V even after the power is turned OFF and some time is required for the charge to dissipate Be careful not to touch any electrified parts before the controller LED red turns OFF If the outdoor controller is normal approximately 30 seconds will be required for the charge to dissipate However allow at least 5 minutes for the charge to dissipate if there is thought to be any trouble with the outdoor controller After repairs are carried out be sure to press and hold the TEST RUN button until the buzzer sounds 2 times to erase the diagnosis results 10 2 Method of Self Diagnostics Main unit controller If the indoor unit operation lamp is blinking every 0 5 seconds follow the procedure below to perform detailed trouble diagnostics ON OFF TEST C 1 If the operation lamp blinks every 0 5 seconds immediately when the power is turned ON there is an external ROM OTP data failure on the indoor circuit board or ROM socket insertion problem or the ROM has not been installed Make sure the ROM is in existence 2 The failure mode is st
86. tection 1 Service valve not opened 2 Shortage of refrigerant d G eo DC compressor drive circuit failure KUYPI SEE phase KUYPI SEE circuit board failure dk n Outdoor fan operating failure 1 Contact failure at connector 2 Outdoor circuit board failure W G Outdoor system communications failure 1 Miswiring in inter unit Outdoor circuit board failure EG Freeze prevention operation activated 1 Indoor fan system failure 2 Shortage of refrigerant 3 Low temperature operation If the operation lamp orange continues to blink immediately after when the power source has been supplied to the air conditioner there might be trouble with the external ROM E14 in the indoor unit 1 HIC or power Tr failure 2 Outdoor fan does not turn 3 Instantaneous power outage 4 Service valve not opened 5 Outdoor fan blocked 6 Continuous overload operation 7 Compressor failure 8 Outdoor circuit board failure lt lt 44 2 If the self diagnostics function fails to operate e No indicators illuminate and the Check the indoor unit indoor fan does not rotate e Check the power voltage Blown Is the fuse blown Replace the circuit Replace the controller board or the fuse 10 3 Checking the Indoor and Outdoor Units 1 Checking the indoor unit NEN M Check tems unit operation Press OPERATION button on the main e The rated voltage must be present between inter unit
87. ther with it Defrosting e When the outdoor temperature is low frost or ice may form on the heat exchanger coil reducing heating performance When this happens a microcomputer defrosting system operates At the same time the fan on the indoor unit stops and the OPERATION lamp lights red and orange alternately until defrosting is completed Heating operation restarts after several minutes This interval will vary slightly depending upon the outdoor temperature and the way in which frost forms Cold draft prevention For several minutes after the start of heating operation the indoor fan runs at a lower speed until the indoor heat exchanger coil has warmed up sufficiently However the fan may remain stopped when the room temperature is low This is because the COLD DRAFT PREVENTION SYSTEM is in operation Cooling Operation e Sometimes the indoor unit may not get to the set fan speed such as LOW and QUIET under cool operation at very low outdoor temperatures due to the indoor unit being protected from ice or frost Power failure during operation e n the event of power failure the unit will stop When the power is resumed the unit will restart automatically within five minutes by the remote control unit Clicking Sound Clicking sound is heard from the air conditioner In heating or cooling operation any plastic parts may expand or shrink due to a sudden temperature change In this event a clicking sound may oc
88. to check that the drain hose is firmly mounted Drain cramp Drain hose Drain cramp Ture the hose 8 3 Removing the Grill Front panel 1 Fully open the front panel Widen the arm while holding the front panel adjacent to the arm pulls the front panel and remove it 2 Remove the lower left cover 3 Remove the screw on the top right of the main body Also remove the screw found when the screw cover is opened 4 Remove 2 screws on the upper part of air outlet Push 3 tabs on the top of grille and remove it 5b Pull the grille forward and remove it 2 screws on the upper part of air outlet Refer to the 7 5 Remove the grill to Install the Indoor Unit to install the grille 30 8 4 Removing the Electrical Component Box 1 Remove the temperature humidity sensor from the sensor plate 2 Remove the operation box of the main bogy Temperature ru Tab r Humidity senso 3 Remove the electrical component box pad plate Release the tabs Operation box Release the tab Sensor plate Electrical component box pad plate Release the 2 tabs Electrical component box 4 Pull out the fan motor lead wire upper lower flap Screw motor lead wire and UV antibacterial filtration unit 2 lead wire from the bottom of electrical component eq Cable holding plate E j Electrical component box box ps 5 Disconnect all the connectors 6
89. ton to switch to the fan mode S8 STEP 2 Press the ON OFF operation button STEP 3 Press the FAN SPEED selector button to select the fan speed of your choice 9 or 5 Night Setback Mode QUIET MODE FAN SPEED NIGHT SETBACK Night Setback Mode is used for saving energy Press the NIGHT SETBACK button while operation The mark appears in the display To release the night setback function press the NIGHT SETBACK button again 10 A In Cooling and DRY Mode amp and When the night setback mode is selected the air conditioner automatically raises the temperature setting 1 C when 30 minutes have passed after the selection was made and then another 1 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed Setting temperature Press the NIGHT SETBACK button In Heating Mode 3 When the night setback mode is selected the air conditioner automatically lowers the temperature setting 2 C when 30 minutes have passed after the selection was made and then another 2 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle heating is needed Setti
90. w then use a probe with a thinner pin 53 Ground wire gu TS Insulation tester Fig 1 Terminal plate PF Aw Clip Copper Insulation tube or tester metallic part ey Copper tube or metallic part O a Insulation tester Fig 3 From fan motor compressor and other parts P N Metallic part Clip uu X O Insulation tester Fig 4 11 2 Checking Continuity of Fuse on PCB Ass y di e Remove the PCB Ass y from the electrical component box Then pull out the fuse from the PCB Ass y Fig 5 e Check for continuity using a multimeter as shown in PCB Ass y Fig 6 9 e Fig 5 Fuse Fig 6 54 12 REFRIGERANT R410A SPECIAL PRECAUTIONS WHEN SERVICING UNIT 12 1 Characteristics of New Refrigerant R410A 12 1 1 What is New Refrigerant R410A R410A is a new refrigerant that contains two types of pseudo non azeotropic refrigerant mixture Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant R22 12 1 2 Components mixing proportions HFC32 5096 HFC125 50 12 1 3 Characteristics e Less toxic more chemically stable refrigerant e The composition of refrigerant R410A changes whether it is in a gaseous phase or liquid phase Thus when there is a refrigerant leak the basic performance of the air conditioner may be degraded because of a change in com
91. wirings 1 and 2 unit controller or start operation e Connect a 5 kohm resistor between inter unit cables 2 and 3 When the using the remote controller voltage at both ends is measured approximately 12 to 15 V DC must be output and the multimeter pointer must bounce once every 8 Press and hold the TEST RUN button seconds on the main unit controller until the buzzer Or instead of measuring the voltage you can insert an LED jig and sounds 1 time check that the LED flickers once every 8 seconds e f there are no problems with the above then check the outdoor unit 2 Checking the outdoor unit No Check items unit operation 1 Apply the rated voltage between outdoor e The control panel LED red must illuminate unit terminals 1 and 2 2 Short circuit the outdoor unit COM terminal The compressor and fan motor must turn ON about 5 seconds later to the T RUN terminal after the terminals are shorted e f there are no problems with the above then check the indoor unit TEST MV T RUN terminals Using the TEST T RUN terminals Circuit board T RUN Test run compressor and fan motor turn ON d TEST MV Compresses time to 1 60th accelerates operation by 60 times faster than normal Fully opens the electric expansion valve 45 3 How to Identify a Serial Communication Error If the lamps on the main body show the following conditions after the completion of self diagnosis

TECHNICAL & SERVICE MANUAL DC INVERTER

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TECHNICAL &amp; SERVICE MANUAL DC INVERTER

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TECHNICAL & SERVICE MANUAL DC INVERTER