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SPLIT SYSTEM AIR CONDITIONER

1. 10 15 Outdoor temperature C DB 1 Point of Rating condition 2 Black dot in the chart indicate the following rating condition Indoor 20 C D B Outdoor 7 C D B 6 C W B Above characteristics indicate instantaneous operation which does not take into consideration defrost operation Fan speed High 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 in conjunction with it 33 6 ELECTRICAL DATA 6 1 Electrical Characteristics Indoor Unit AWR508HL Outdoor Unit AER508SH COOLING Indoor Unit Outdoor Unit Complete Unit Compressor 230V Tphase 50 Rating Condiions Rumning Amps A ox J s Power input 0 025 0 058 Ful Load Conditions Running Amps AL om as a _ Power input 0 025 0055 Rating Conditions Indoor Air Temperature 27 19 W B Outdoor Air Temperature 35 D B Full Load Conditions Indoor Air Temperature 32 D B 23 C W B Outdoor Air Temperature 43 HEATING Indoor Unit Outdoor Unit Complete Unit Performance at 230V 1 phase 50Hz RaingCondons Ruming Amps A o1 ox s s Power Input kW 0 025 0 055
2. REMOTE CONTROL This section picks up infrared signals from the remote control receiver unit transmitter Operation selector ON position This position is for operating the air conditioner with the wireless remote control unit Set the selector normally in this position OFF position Switch the selector to the OFF position if you are not going to use the air conditioner for a few days or longer WARNING The OFF position does not disconnect the power Use the main N power switch to turn off power completely TEST position This position is used only when servicing the air conditioner 1 CAUTION Do not set at the TEST position for normal operation OPERATION lamp This lamp lights when the system is in the continuous DRY and COOL mode TIMER lamp This lamp lights when the system is being controlled by the timer 6 01 858 06 Remote Control Unit Display Displayed when main unit sensor is in use Displayed when setting temperature SET MP PJE Displayed when transmitting data a Displayed when temperature is se D shown A 4 Displayed when the temperature setting is at the upper or lower dh 4H allowable limit Displayed when setting timer Symbols 1 Operation mode 3 Set temperature 16 30 C When set to 28 C Current temprature indication intervene dan COOL ann PEAT RR 4 Timer 24 hour clock with ON OFF CA program Timer HN 24 hour
3. No addition of compressor oil for R407C No additional charge of compressor oil is permitted No use of refrigerant other than R407C Never use a refrigerant other than R407C If refrigerant R407C is exposed to fire Through welding etc toxic gas may be released when R407C refrigerant is exposed to fire Therefore be sure to provide ample ventilation during installation work Caution in case of R407C leak Check for possible leak points with the special leak detector for R407C If a leak occurs inside the room immediately provide thorough ventilation 54 9 3 Tools specifically for R407C For servicing use the following tools for R407C Tool Distinction e Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Tools specifically for R407C lt Refrigerant recovery unit e 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 e Vacuum pump 2 can be used if the following adapter is attached e Vacuum pump adapter reverse flow prevention adapter 3 Solenoid valve installed adapter attached to a conventional vacuum pump Electronic scale for charging refrigerant Flare tool Bender Tools which can be commonly Torque wrench used for R22 and R407C Cutter Reamer Welding machine nitrogen gas cylinder The above tools specifically for R407C mu
4. 2 Confirm that the air conditioner responds correctly when you press keys on the remote control from that position 3 After confirming correct operation use a screwdriver to screw the supplied special mounting screw into the wall Fig 6a 4 Hang the remote control unit from the mounting screw b Non removable mounting 1 Momentarily hold the remote control unit at the desired mounting position 2 Confirm that the air conditioner responds correctly when you press keys on the remote control from that position 3 After confirming correct operation use a screwdriver to screw the supplied special mounting screw into the wall Fig 6a 4 Remove the remote control cover by sliding it downward 5 Remove the batteries of the remote control unit 6 Use a screwdriver to screw the remote control unit Securing screw into the wall through the hole in the battery compartment Fig 6b 7 Replace the batteries 8 Again confirm that the remote control unit operates correctly Removable mounting Wall Special mounting screw Fig 6a Non removable mounting Wall Sla Fig 6b 44 7 3 Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to D NOTE locality For field wiring requirements please refer to your local electrical codes Carefully observe these regulations when carrying out the installation Refer to the WIRING SYS
5. 830 Coil resistance Ambient temp 20 Q BRN WHT 250 288 WHT YEL 344 396 Safety devices Type Internal protector Operating temp Open 130 8 Automatic reclosing Run capacitor 1 5 450 Heat Exch Coil Coil Aluminum plate fin Copper tube Rows Fin pitch 1 4 Face area DATA SUBJECT TO CHANGE WITHOUT NOTICE 2 3 Other Component Specifications Indoor Unit AWR508HL AWRS509HL AWR512HL Transformer TR Rating Primary Secondary Capacity Coil resistance Q at 21 C Thermal cut off temp Thermistor Coil sensor Resistance kQ Thermistor Room sensor Resistance kQ Outdoor Unit AER508SH AER509SH AER512SH Power Relay PR Coil rating Coil resistance Q at 20 C Contact rating Thermostat Defrost thermo 23D Operating temp C 4 way Valve SC Coil rating Coil resistance Q at 20 C 4 way Valve SC Coil rating Coil resistance Q at 20 C ATR J105 AC 230V 50 60 Hz 19V 0 526A 10VA Primary WHT WHT 205 10 Secondary 2 0 10 150 131 OT 15 0 2 DTN TKS134B 25 5 023 DFU24D1F DC 24V 650 10 AC 250V 20A TRS02 12MSR ON 12 42 Diff 8 deg below LB60012 Coil VH7100C Valve AC 220 240V 50Hz 6W 1 740 7 Only for 7 000BTU h and 9 000BTU h class models gt LB60012 Coil V26 110B Valve AC 220 240V 50Hz 6W 1 740 7 PTC Thermistor TH Only for 12 000BTU h class models TDK 10
6. Clicking sound is heard In heating or cooling operation any This is normal and the sound will from the air conditioner plastic parts may expand or shrink soon disappear due to a sudden temperature change In this event a clicking sound may occur OPERATION lamp lights 1 The use of portable telephones 1 Turn off the power then restart the but outdoor unit will not near the air conditioner may cause air conditioner after 1 minute run disturbance to its normal operation 2 Consult your dealer Tips for Energy Saving Do not 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 e 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 OI 858 25EG 2b
7. Cooling Characteristics Heating Characteristics Indoor inlet air D B temp C Indoor inlet air D B temp C Operating current A Operating current A 25 30 35 40 45 50 5 0 5710 15 20 25 Outdoor inlet air D B temp C Outdoor inlet air D B temp C Indoor inlet air D B temp C Indoor inlet air D B temp C Low pressure at wide tube service valve MPa kgf cm G High pressure at wide tube service valve MPa kgf cm2G 25 30 35 40 45 50 1 08 10 59 5710 15 20 25 Outdoor inlet air D B temp C Outdoor inlet air D B temp C Overload prevention operates to protect the air conditioner when outdoor ambient temperature reaches extremely high in heating mode Refer to 8 5 Overload prevention 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 23 5 2 Air Throw Distance Chart AWR508HL Indoor Unit Cooling 27 C Room air temp Fan speed High Horizontal distance m eoueisip EI MON s u poojan JI sixy e Axis air velocity 0 30 e Flap angle 20 C Room air temp Fan speed High Horizontal distance m T CN Ceo lt EIN s u sixy e Axis
8. Circuit breaker is tripped Reset breaker Check power supply Power is being supplied to the indoor unit Wait for recovery or contact power company B Check OPERATION selector switch in the indoor unit YES voli e switch is set Indoor PCB Ass y is defective NO Set OPERATION selector switch to ON 63 C Check remote control unit Try to run with another remote control unit OK First remote control unit is defective Check for residue buildup on transmitter of remote control unit Check for residue buildup on remote control receiver on front of indoor unit D Check fuse on the indoor PCB Ass y Check fuse on indoor PCB Ass y for continuity F OK Check operation lamp to see if light is ON Light is OFF If fuse has been blown Measure resistance of primary and secondary winding of transformer TR e Indoor PCB Ass y is defective E Check TIMER on the remote control unit Timer is turned ON Check to see YES Clean transmitter Clean receiver Measure resistance of indoor and outdoor fan motor winding FM Measure resistance of compressor motor winding CM Measure coil resistance of power relay in outdoor unit PR e Replace the fuse if ON O or is displayed on remote control 64 gt Cancel the timer mode 10 2 3 Only outdoor unit does not run A Check setting temperatu
9. Performance at at 220 240V 50Hz Rap Gendir a Powerinput 070 0075 FUT Load Condiions Running Amps A 08 os 77 83 Powerinput RW 0970 0976 Rating Conditions Indoor Air Temperature 20 D B Outdoor Air Temperature 7 6C W B Full Load Conditions Indoor Air Temperature 27 C D B Outdoor Air Temperature 24 18 W B 37 6 2 Electric Wiring Diagrams Indoor Unit AWR508HL To avoid electrical shock hazard be sure to AWR509HL disconnect power before checking servicing AWR512HL and or cleaning any electrical parts TRANSFORMER TERMINAL ceo 11254 IND LAMP ASSY FAN MOTOR 851 2 5253 305 1 38 Indoor Unit FCR512HL To avoid electrical shock hazard be sure to TANI NI Nagi disconnect power before checking servicing and or cleaning any electrical parts THERMISTOR TRANSFORMER 112 5 4 516178 9 112 514 5 617 8 91 222 naa 213 P 1 2 5 5 CONECTOR SWITCH ASSY 39 Outdoor Unit AER508SH To avoid electrical shock hazard be sure to AER509SH disconnect power before checking servicing and or cleaning any electrical parts TERMINAL PLATE T1 LH WHT BLK Mid 5 BLK sew 2 DE RED 22e u NN Z CONTROLLER n Pe a 4 YEL nu T UP PR a HH i 3 nis 2 _ I 5 z da
10. Weight Net 36 0 Shipping 39 0 Shipping volume DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 27 D B 19T W B Outdoor air temperature 35 24 W B Heating Indoor air temperature 20 D B Outdoor air temperature 7 D B 6T W B Indoor Unit AWR512HL Outdoor Unit AER512SH Voltage rating 230 V Capacity kW 3 30 4 10 BTU h 11 424 13 98 Air circulation High m h 430 Moisture removal High Liters Running amperes ALL Power factor 95 94 COP Compressor locked rotor amperes gt Microprocessor C thermostat Control unit Wireless remote control unit Timer ON OFF 24 hours amp Daily program 1 hour OFF Fan speeds Indoor Outdoor and Auto 1 Hi Airflow direction Indoor Horizontal Manual Vertical Auto Washable Anti Mold Rotary Hermetic Refrigerant Amount charged at shipment R407c 1 150 Refrigerant control Capillary tube Operation sound Indoor Hi Me Lo 39 35 33 39 35 33 Outdoor Hi Refrigerant tubing connections Flare type Max allowable tubing length at shipment 7 5 Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 12 7 1 2 Refrigerant tube kit Accessories Optional Air Clean Filter Dimensions amp Weight Indoor Unit Outdoor Unit Unit dimensions 270 540 805 700 177 265 568 343 Controls Temperature control Air filter Compressor Refrigerant
11. 380 796 Heat Exch Coil DATA SUBJECT TO CHANGE WITHOUT NOTICE Indoor Unit AFR509HL eontrolley Fee OO POW K96GHS C Control circuit fuse 250V 3A Remote Control Unit RCS 8HPS3E 1 Type Cross flow Dia and length mm Fan motor model Oy No of poles rpm 230 V High Nominal output Coil resistance Ambient temp 20 GRY WHT 545 630 WHT VLT 192 105 VLT YEL 62 71 YEL BRN 780 900 Safety devices Type Internal fuse Operating temp Open 150 10 VAC Run capacitor UF Heat Exch Coil Oe Coil Aluminum plate fin Copper tube Rows 2 Fin pitch Face area DATA SUBJECT TO CHANGE WITHOUT NOTICE 10 Indoor Unit FCR512HL Controller _ NEH Part No POW K126GHS C Controls Control circuit fuse 250 V 3 15 Remote Control Unit RCS 6HPSS3E Coil resistance Ambient temp 20 Q GRY WHT 3144796 WHT PNK 4444796 WHT VLT 98 9 7 VLT ORG 98 9 7 ORG YEL 223 7 Safety devices Type Operating temp Run capacitor iF VAC Flap Motor DATA SUBJECT CHANGE WITHOUT NOTICE 11 2 2 2 Outdoor Unit Outdoor Unit AER508SH Controller PCB POW C96GH Compressor Rotary Hermetic CAN75HEA 80225245F ROTARY OIL 470 0 Coil resistance Ambient temp 25 3 45 C S 8 79 Safety devices Type Overload relay Operating temp Close Operating amp Ambienttemp 25 Trpin amp ioi6
12. Alternatively the circuit inside the temperature sensor is closed 70 11 CHECKING ELECTRICAL COMPONENTS 11 1 Measurement of Insulation Resistance The insulation is in good condition if the resistance exceeds 2MQ 11 1 1 Power Supply Wires Clamp the grounding terminal of the power plug with a lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the two power terminals 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 where power supply lines are connected on the terminal plate Fig 2 11 1 3 Outdoor 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 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 Refer to Electric Wiring Diagram If the probe cannot enter the poles because the hole is too narrow the
13. Electrical Requirements ag Dove eaa a ga en lav 4 Safety INSIMUICE OMS x5 CoU da enden vd S bea En dva oU di Saa oe Re eR GA die Sdn 4 Names ntn IM PETI NE 5 Using the Remote Control Unit nennen eneen nnne nennen nnn 10 Operation with the Remote Control Unit 12 Ve AUTOMATIC steriele 12 2 Manual Operation tabaco e bes aa aria 13 3 Adjusting The Fan Spee Oi 14 4 Night Setback Mode ussen 15 Special Remarks s esie SER ee En ORE a DN EROR EUR 17 Sewing the an ata cuu SUE EcL 18 Using the T HOUr OFF Timer zen sanne S e idc elas 20 Adjusting the Airflow Direction annen 21 Operation without the Remote Control Unit nennen 22 Care and ap ng ag a netmanager A a Da a Aa 22 TEOWDIESNGO NENG E sabato a dead an a akan 25 Tps tor Energy Saving 25 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 Phone number DECLARATION OF CONFORMITY This product is marked as it satisfies EEC Directive No 89 336 EEC 73 23 EEC 93 68 EEC and 92 31 EEC T
14. Fan cannot Check fan rotation be turned Turn fan gently once or twice by hand inside Fan motor burnout or foreign matter in Repair or replace bearings Measure resistance of outdoor fan motor winding OK Check fan motor capacitor 66 10 3 4 Only compressor does not run Overload relay is working Either OLR T or OLR A YES Temperature of compressor is abnormally high YES Refrigerant gas shortage NO Check compressor motor capacitor C1 Measure resistance of compressor motor winding YES Charge refrigerant gas R407c Measure Power supply voltage Rotor may be locked up The voltage is too low Measure resistance of power relay PR 67 10 4 Air conditioner operates but abnormalities are observed 10 4 1 Operation does not switch from HEAT to COOL or COOL to HEAT Receiver in lamp Ass y may be defective Remote control unit may be defective Measure resistance of 4 way valve s winding COOL gt HEAT Check voltage between terminals Outdoor PCB Ass y is defective No 1 and No 3 at the terminal plate DC 24V No voltage appears Indoor PCB Ass y is defective HEAT COOL Check voltage between terminals No 1 and No 3 at the terminal plate 0V 68 10 4 2 Poor cooling or heating Check position of remote control unit Cool or warm air from air conditioner reaches position di
15. indications flash Press the HH button until 7 is The display will change displayed automatically back to show Press the MM button until 10 is the present time after 10 displayed Sec 3 Press the ON OFF button to start the The present time is air conditioner displayed 4 Press the TIMER SELECT button to set The present time and ON time are displayed 4 How to set a program Example To start operation at 7 10 and stop the air conditioner at for daily ON OFF 23 30 operation Set the timer ON OFF times as shown KON in 2 and 3 A Press the ON OFF button to start the N 04 air conditioner Press the TIMER SELECT button to set is displayed the ON OFF combination timer NOTE You can check the timer ON OFF times after you have set them by pressing the PROGRAM button 01 858 19 19 1 1 Hour OFF Timer 20 TIMER Y TEMP A IHR 1HR ON I OFF O _ 2 Operation Together with the Program Timer Using the 1 Hour OFF Timer 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 t
16. 0 671 Ful Load Conditions Running Amps A se 49 Power Input kW 0 025 0 055 0 801 Rating Conditions Indoor Air Temperature 20 D B Outdoor Air Temperature 7 6C W B Full Load Conditions Indoor Air Temperature 27 D B Outdoor Air Temperature 24 18 W B 34 Indoor Unit AWR509HL AFR509HL Outdoor Unit AER509SH COOLING Indoor Unit Outdoor Unit Complete Unit Compressor 230V 1 phase 50 Rating Condions Ruming Amps A a Power Input kW 0 027 0 055 0 948 FullLoad Conditions Running Amps 012 024 515 55 Power Input 0 027 0 055 1 148 Rating Conditions Indoor Air Temperature 27 19 W B Outdoor Air Temperature 35 D B Full Load Conditions Indoor Air Temperature 32 D B 23 C W B Outdoor Air Temperature 43 D B HEATING Indoor Unit Outdoor Unit Complete Unit Performance at 230V 1 phase 50Hz RaingCondons Rumning Amps Al 38 42 Power Input kW 0 027 0 055 0 848 Ful Load Conditions RunmngAmps A 024 48 52 Power Input kW 0 027 0 055 1 058 Rating Conditions Indoor Air Temperature 20 C D B Outdoor Air Temperature 7 C 6 W B Full Load Conditions Indoor Air Temperature 27 D B Outdoor Air Temperature 24 18 W B 35 Indoor Unit AWR512HL Outdoor Unit AER512SH COOLING Indoor Unit Outdoor Unit Complete Unit Compressor 2 0 T phas
17. 19 1 29 23 25 SHC 27 SHC 29 SHC 31 SHC TOTAL COOLING CAPACITY kW SHC SENSIBLE HEAT CAPACITY kW CM COMPRESSOR INPUT kW RATING CONDITIONS OUTDOOR AMBIENT TEMPERATURE 35 INDOOR UNIT ENTERING AIR TEMP 27 C D B 19 C W B 30 Indoor Unit AFR509HL Outdoor Unit AER509SH 230V Single Phase 50Hz RATING CAPACITY 2 65 kW AIR FLOW RATE 370 m h OUTDOOR AMBIENT TEMP WB DB 20 25 30 35 40 45 TC 2 67 2 55 2 44 2 32 2 18 2 01 0 67 0 72 0 77 0 83 0 92 1 01 29 31 TC Total Cooling Capacity KW SHC Sensible Heat Capacity kW CM Compressor Input kW Rating conditions z Mark are Outdoor Ambient Temp 35 C D B Indoor Unit Entering Air Temp 27 19 W B 31 Indoor Unit FCR512HL Outdoor Unit AER512SH 240V Single Phase 50Hz RATING CAPACITY 3 35 kW AIR FLOW RATE 700 mh EVAPORATOR CONDENSER WE TEMP TE AMBIENT TEMP C 0 25 30 35 40 a 3 23 3 08 2 93 2 6 0 90 0 97 1 04 1 12 1 22 1 32 3 62 3 46 331 3 15 2 96 272 0 92 Tus x TC 3 85 3 69 3 52 3 35 3 15 2 90 CM 0 95 1 03 1 10 1 18 1 29 1 39 SHC 1 69 1 62 1 56 1 49 1 41 1 31 4 08 391 373 3 55 3 34 3 07 0 98 1 67 TC 4 33 4 15 3 95 373 3 49 325 aa 1 00 gt 15 1 a SHC SHC Total Cooling Capacity kW SHG sensible Capacity kW a mnam nna m Linas SENA AE 32 5 4 Heatin
18. 27 D B 19T W B Outdoor air temperature 35 24 W B Heating Indoor air temperature 20 D B Outdoor air temperature 7 D B 6T W B Indoor Unit FCR512HL Outdoor Unit AER512SH Performance Capacity Air circulation High m h Moisture removal High 18 gt Electrical Rating Power factor C O P Indoor Outdoor and Auto 1 Hi Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amount charged at shipment R407c 1150 Refrigerant control Capillary tube Operation sound Indoor Hi Me Lo 44 40 35 44 40 35 Outdoor Hi Refrigerant tubing connections Max allowable tubing length at shipment Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 12 7 1 2 Optional Air Clean Filter Dimensions amp Weight Indoor Unit Outdoor Unit Unit dimensions 680 540 265 Package dimensions Height 568 Depth 343 Weight Net 38 0 Shipping 41 0 Shipping volume DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 27 19 W B Outdoor air temperature 35 C 24 W B Heating Indoor air temperature 20 D B Outdoor air temperature 7 C 6 W B 2 2 Major Component Specifications 2 2 1 Indoor Unit Indoor Unit AWR508HL eontrolley Fee A POW K7BEHIA POW K8EH B Control circuit fuse 250 V 3 15A Remo
19. 58 2 de a t 5 E Q 5 69 8 INO z W POWER RELAY arm Fee 1 JOLRCT 2 a L C COMPRESSOR MOTOR ex zi CAPACI TOR GRN YEL 8512 5253 305xx 1 Outdoor Unit AER512SH To avoid electrical shock hazard be sure to TANI NI disconnect power before checking servicing and or cleaning any electrical parts TERMINAL PLATE LH WHT N BLK a gt OPE a NN BRN EARTH TH n BLK 2 RED LL BLK ge DH ors Z CONTROLLER 5 4 m Ort ne SUP PR FM1 FM x EH d amp a El Ha E Q lt 0 ES 22 1 COM lt O SE 6 NO Y e zi POWER RELAY T DLRCA Eke FAN MOTOR mi 2 e COMPRESSOR MOTOR x lt ci I 2 5 EIE amp amp Q ul x oO t 851 2 5253 359 1 41 7 INSTALLATION INSTRUCTIONS 7 1 Installation Site Selection MM To prevent abnormal heat generation and the possibility of fire don t place obstacles enclosures and grills in front of or surrounding the air conditioner in a way that may block air flow AVOID direct sunlight nearby heat sources that may affect performance of the unit areas where leakage of flammable gas may be expected places where large amounts of oil mist exist DO select an appropriate position from which every corner of the room ca
20. Amount charged atshipment_ gf R4070 1150 A N Package dimensions Height 243 Width 855 815 Depth 332 Weight Net 8 0 38 0 Shipping 10 0 41 0 Shipping volume 0 07 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 27 D B 19T W B Outdoor air temperature 35 24 W B Heating Indoor air temperature 20 D B Outdoor air temperature 7 6C W B Indoor Unit AFR509HL Outdoor Unit AER509SH Voltage rating 230 V Capacity BTU h Air circulation High m h Moisture removal High Electrical Rating Fan speeds Indoor Outdoor and Auto 1 Hi Airflow direction Indoor Horizontal Manual Vertical Manual Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amount charged at shipment R407c 990 Refrigerant control Capillary tube Operation sound Indoor Hi Me Lo 37 32 31 37 32 31 Outdoor Hi Refrigerant tubing connections Max allowable tubing length at shipment Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 9 52 3 8 Refrigerant tube kit Accessories Optional Air Clean Filter Dimensions amp Weight Indoor Unit Outdoor Unit Unit dimensions 700 540 200 265 Package dimensions Height 770 568 Depth 343 Weight Net 36 0 Shipping 20 37 0 Shipping volume DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature
21. air velocity uestes 60 e Flap angle 24 AWRS509HL Indoor Unit Cooling 27 C Room air temp Fan speed High Horizontal distance m eoueisip s w poojen sixy Axis air velocity 0 30 e Flap angle 20 C Room air temp Fan speed High Horizontal distance m eoueisip BOIS A s u poojen JI SIX e Axis air velocity 45 60 e Flap angle 25 AWR512HL Indoor Unit Cooling 27 C Room air temp Fan speed High Horizontal distance m eoueisip s u poojen sixy Axis air velocity 0 30 e Flap angle 20 C Room air temp Fan speed High Horizontal distance m eoueisip BOIS A s u poojen JI SIX e Axis air velocity 45 60 e Flap angle 26 Indoor Unit FCR512HL Ceiling mounted Room air temp 27 C Fan speed High Horizontal distance m 00 1 2 3 4 5 6 7 e Axis air verocity e Flap angle Axis air velocity m s Vertical distance m Room air temp 20 C Fan speed High Horizontal distance m 70 D e Axis air verocity gt Flap angle 96 2 NN UN m N60 lt gt 1 80 27 5 3 Cooling Capacity Indoor Unit AWR508HL Outdoor Unit AER508SH 230V Single Phase 50Hz RATING CAPACITY 2 30 kW AIRFLOW RATE 430 OUT
22. evaporator in the direction of the arrow Fig 10 IMPORTANT The foamed polystyrene drain pan is fragile DO NOT apply excessive force when removing it 8 The evaporator can be removed by sliding it out from the drain pan in the direction of the arrow Fig 11 76 Front panel Fig 9 Rubber cap Thermistor Drain pan D Mounting plate Evaporator Indoor coil Drain pan Front fan casing Drain hose Fig 10 Mounting Fig 11 12 6 Removing Fan and Fan Motor 1 Unlatch the 2 hooks on each side to take off the front fan casing Fig 12 2 Remove the 2 screws attaching the rear fan casing and then pull the fan casing out 3 Insert a hex wrench in the fan boss and turn it counterclockwise to loosen the centrifugal fan The fan can be removed by sliding it to the left Fig 14 4 Remove the 4 bolts to remove the fan motor from the frame Fig 15 77 Frame Hook Front fan casing Fig 12 KE D KE Rear fan casing Fig 13 Centrifugal fan Hex wrench 3mm or 7 64 Fig 14 Bolts M6 Fan motor Fig 15 APPENDIX INSTRUCTION MANUAL AWR508HL AER508SH AWR509HL AER509SH AWRS512HL AER512SH 78 OI 858 03EG Contents Page FEAE Senne AB a ga E stre ANG a A 2 Product ALOT ON ka pa tb en en E ah aaa aa 3 S ababaka aan pani 3 installation LOGO aas 4
23. in button the HEAT DRY or COOL mode the mark appears in the display and the remote control unit will automatically adjust the set temperature to save energy TEMP setting buttons Press the 9 button to increase the set temperature Press the button to reduce the set temperature ON OFF operation This button is for turning the air conditioner on and off button Timer setting buttons First press the program button to select the mode you want Each time you press the HH button the hours advance by one Each time you press the button the minutes advance by one Program button For details see Setting the Timer Press this button to select the mode you want to program 8 01 858 08 TIMER SELECT button MODE selector button AUTO HEAT DRY COOL FLAP button FAN SPEED selector button 1 HR TIMER button 1 HOUR OFF TIMER Remote Control Unit continued No display The timer does not operate 9 The air conditioner stops at the set time The air conditioner starts at the set time The air conditioner stops and starts or starts and stops at the set times every day Use this button to select AUTO HEAT DRY or COOL mode A 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 The air conditioner makes the r
24. is defective At the same time the outdoor unit will stop Indoor unit will operate only for ventilation 10 5 2 Room temp thermistor TH2 is defective A Open When thermistor opens the air conditioner will be in the following conditions as the controller tries to detect extremely low room temperature a In Cooling mode The air conditioner soon stops and will not start again Thermo OFF Neither outdoor fan nor compressor runs b In Heating mode The air conditioner continues to operate Thermo ON Both the outdoor fan and compressor do not stop As a result the P d room becomes too warm Temperature B Short sensor When thermistor is short the air conditioner will be in the following conditions as the controller tries to detect extremely high room temperature Lead In Cooling mode The air conditioner continues to operate Thermo ON Both wires the outdoor fan and compressor do not stop As a result the room becomes too cold Thermistor Structure b In Heating mode The air conditioner soon stops and will not start again Thermo OFF Neither outdoor fan nor compressor runs Definition of Open or Short Circuit of Sensor Thermistor Open A lead wire is broken or disconnected or the circuit inside the temperature sensor is open Short The protective cover of a lead wire has been damaged and the exposed wire is touching another metal part or both lead wires have become exposed and are touching each other
25. 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 temperature Press the NIGHT SETBACK button OI 858 16EG Special Remarks DRY Operation How it works Once the room temperature reaches the level that was set the unit repeats the cycle of turning on and off automatically During DRY operation the fan speed is automatically set to LOW or VERY LOW the fan speed then switches back and forth between LOW for 20 seconds and VERY LOW for 10 seconds DRY operation is not possible if the indoor temperature is 15 C or less Heating x Operation Heating performance 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 in conjunction with it Defrosting When the outdoor temperature is low frost or ice may form on the heat exchanger coil reducing heating performance When this happens a microcomputer defrosti
26. stubborn dirt Then rinse thoroughly with water and wipe away any remaining moisture OI 858 24EG Troubleshooting If your air conditioner does not work properly first check the following points before requesting service If it still does not work properly contact your dealer or service center Possible Cause Air conditioner does not 1 Power failure 1 Restore power run at all 2 Leakage breaker tripped 2 Contact service center 3 Line voltage is too low 3 Consult your electrician or dealer 4 Operation button is OFF 4 Press the button again 5 Batteries in remote control unit 5 Replace batteries have run down OPERATION lamp flashes Trouble in wiring system Contact service center and air conditioner does not operate Compressor runs but Obstruction in front of condenser coil Remove obstruction soon stops Poor cooling or heating 1 Dirty or clogged air filter 1 Clean air filter to improve airflow performance Heat source or many people in Eliminate heat source if possible room Doors and or windows are open Shut them to keep the heat or cold out Obstacle near air intake or air Remove it to ensure good airflow discharge port Thermostat is set too high for Set the temperature lower or cooling or too low for heating higher Outdoor temperature is too low Try to use a back up heater Defrosting system does not work 7 Consult your dealer
27. 1YV 100 20 Resistance Q at 25 C Only for 12 000BTU h class models Indoor Unit AFR509HL Thermistor Room sensor TH2 Resistance kQ Thermistor Coil sensor TH1 Resistance kQ Transformer TR Rating Primary Secondary Capacity Coil resistance Q at 21 C Thermal cut off temp Indoor Unit FCR512HL Thermistor Room sensor TH2 Resistance kQ Thermistor Coil sensor TH1 Resistance kQ Transformer TR Rating Primary Secondary Capacity Coil resistance Q at 21 C Thermal cut off temp 16 DHKTEC 35 S6N 20 C 10 5 10 7 9 5 20 6 3 5 10 5 0 5 DHPBC 41ES 14N 20 40 1 5 10 24 4 5 0 15 3 5 10 C 9 9 5 ATR H85 AC 235V 50Hz 11V 0 727A Primary WHT WHT 214 10 Secondary 1 58 10 145 C 2A 250V KTEC 35 S6 10 0 4 30 C 4 0 4 7 944 35 C 3 3 4 6 3 4 40 2 7 4 5 0 4 50 1 8 4 41 14 40 1 5 20 6 5 5 24 4 5 30 4 4 5 15 3 5 40 3 0 5 9 9 5 50 2 1 5 ATR J105 230V 50 60Hz 19V 0 526A 10VA Primary WHT WHT 205 10 Secondary 2 0 10 150 3 DIMENSIONAL DATA Indoor Unit AWR508HL AWRS509HL AWR512HL 41 0 Narrow tube 26 35 1 4 hole 2 places Wide tube 29 52 3 8 AWR508 AWR509 Wide tube 212 7 1 2 AWR512 Center of
28. 6 minutes Continuous operating time of Compressor keeps running for compressor is more than 20 at least 6 minutes minutes Temperature of outdoor heat exchanger coil is below 9 C Defrosting begins Cold draft prevention Defrosting time is over 12 minutes Temperature of outdoor heat exchange coil is higher than 12 C Release of defrosting NOTE 3 No LL fan operation during this period NOTE Indoor fan runs at set speed when temperature of indoor heat exchanger reads Tc C The values shown as Ta Tb and Tc differ according to the models CEN 52 Defrosting Mode Timing Chart Start of defrosting Release of defrosting 32 seconds 11 minutes 32 seconds Compressor O OFF OFF ON Outdoor fan O OFF ON Solenoid coil N 4 way valve Indoor fan Set speed Set speed Standby lamp OFF OFF Indoor heat P s exch coil em temp m FUP I Helease of cold draft prevention 1 Refer to 8 6 Cold Draft Prevention 53 9 REFRIGERANT R407C SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9 1 Characteristics of new refrigerant R407C 9 1 1 What is new refrigerant R407C R407C is a new refrigerant that contains three types of non azeotropy type mixed refrigerant which does not adversely affect the Earth s ozone layer Its refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant R22 9 1 2 Components mixi
29. Anti Mold Filter The anti mold filter behind the air intake grille should be checked and cleaned at least once every two weeks Air intake grille How to remove the 1 Grasp both ends of anti mold filter the air intake grille and pull it out and up 2 Push the anti mold filter up slightly and then pull it down HE LL LI Anti mold filter 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 How to replace the 1 With the FRONT mark n anti mold filter facing you slide the Air intake grille anti mold filter up into the unit and then lower the handle into the groove on the unit 2 After installing the anti mold filter press the locations marked by the arrows and close the air intake grille Anti mold filter Insert into the groove on the unit 01 858 23 23 Air Clean Filter not provided How to install the air clean filter Cleaning the main unit and remote control unit Removing and remounting the air intake grille NE Washing the grille with water 24 Care and Cleaning continued The air cleaning filter removes dust and dirt from the air and reduces odors and smoke from tobacco The air clean filter is not provided with the air conditioner and must be purchased separately The first time that you buy the air clean filter it i
30. DOOR AMBIENT TEMP WB DB 20 25 30 35 40 45 TC 2 32 2 22 2 12 2 02 1 89 1 74 CM 0 53 0 58 0 62 0 66 0 69 0 72 25 SHC 27 SHC 29 SHC 31 SHC TC Total Cooling Capacity KW SHC Sensible Heat Capacity kW CM Compressor Input kW Rating conditions Mark are Outdoor Ambient Temp 35 D B Indoor Unit Entering Air Temp 27 19 C W B 28 Indoor Unit AWR509HL Outdoor Unit AER509SH 230V Single Phase 50Hz RATING CAPACITY 2 65 kW AIRFLOW RATE 430 OUTDOOR AMBIENT TEMP WB DB 20 25 30 35 40 45 TC 2 67 2 55 2 44 2 32 2 18 2 01 0 67 0 72 0 77 0 83 0 92 1 01 29 31 TC Total Cooling Capacity KW SHC Sensible Heat Capacity kW CM Compressor Input kW Rating conditions z Mark are Outdoor Ambient Temp 35 C D B Indoor Unit Entering Air Temp 27 19 W B 29 Indoor Unit AWR512HL Outdoor Unit AER512SH 230V Single Phase 50Hz RATING CAPACITY 3 3 kW AIR FLOW RATE 430 m 3 h EVAPORATOR CONDENSER ENT TEMP C OUTDOOR AMBIENT TEMP C WB DB lc 0 85 0 90 0 97 1 07 1 16 21 23 25 27 29 31 cw oer as 100 tio tis CM 0 87 0 93 1 00 1 10 1 19 21 SHC 23 17 25 27 29 31 3 59 3 47 3 10 2 86 21 23 19 25 27 29 31 0 93 0 99 1 06 1 16 1 26 23 SHC 1 55 1 50 1 43 1 34 1 24 21 25 27 29 31 0 95 1 01 1 09 1
31. If resistance value is 2MQ or less insulation is defective Power plug Local supply Inter unit 2 2 wiring 1 L L Circuit p Wall outlet EE N 6 e N breaker podes receptacle 7 FS ORE x Single phase 1x Ground xli Ground 220 240V he 3 X x13 4 4 WARNING Set circuit breaker to OFF 1 Remove inter unit wires from terminal plate in outdoor unit NO Insulation of outdoor unit e Measure insulation resistance is defective of outdoor unit e Measure insulation resistance of electrical parts in outdoor unit 2 Remove inter unit wires from terminal plate in indoor unit NO Insulation of indoor unit is defective Then pull the power plug out of the wall outlet Measure insulation resistance of indoor unit e Measure insulation resistance of electrical parts in indoor unit 62 B Circuit breaker trips in several minutes after turning the air conditioner on There is a possibility of short circuit Check capacity of circuit breaker Replace with suitable one larger capacity Capacity of circuit breaker is suitable In case of Heating operation e Measure resistance of outdoor fan Measure resistance of 4 way valve s motor winding winding Measure resistance of compressor motor winding 10 2 2 Neither indoor nor outdoor unit runs A Power is not supplied
32. ON 2 Fan speed ON 9 24 hour OFF Timer 1 hour OFF Timer 5 NIGHT SETBACK 6 Confirmation of ONM NE transmission 7 Flap angle indication 8 Sweep indication OI 858 07EG 7 Remote Control Unit Sensor Transmitter m mot A A H Li Display Cover closed TIMER Y TEMP A 1 HR TIMER button TEMP setting buttons ON OFF operation button MODE selector button NIGHT SETBACK button A LE Ei Program button TIMER SELECT button Timer setting buttons A C SENSOR button ACL button O 4 FLAP button FAN SPEED selector button Battery compartment Pull off the cover to expose the batteries NOTE The illustration above pictures the remote control unit after the cover has been lowered and removed Transmitter When you press the buttons on the remote control unit the 7 mark appears in the display to transmit the setting changes to the receiver in the air conditioner A temperature sensor inside the remote control unit senses the room temperature Display Information on the operating conditions is displayed while the remote control unit is switched on If the unit is turned off only the mode that was set previously is still displayed NIGHT SETBACK For details see Night Setback Mode When you press this button
33. ON OFF ON OFF T 1 C p settemp T C mm cer I More than 5 minutes 5 minutes 3 minutes Room temp Compressor ON OFF ON In Outdoor fan Ts Indoor fan Set speed The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 3 minutes To protect the compressor from stalling out when trying to start against the high side refrigerant pressure the control circuit has a built in automatic time delay to allow the internal pressure to equalize 6 As a protective measure the control circuit switches the compressor OFF after 5 minutes or more of compressor operation Thermo ON When the room temperature is above 1 C T C is set temperature Compressor ON Thermo OFF When the room temperature is equal to or below set temperature T C Compressor OFF 46 Heating Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit The room temperature and other information is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit Signal from remote control unit More than 5 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes set temp T C 1 2 Compressor Outdoor fan Indoor fan Standby lamp Indoor heat exch Thermo OFF Thermo Thermo Th
34. TECHNICAL DATA amp SERVICE MANUAL AWR508HL AWRS09HL AFR509HL AWHR512HL FCR512HL AERS508SH Pur AER509SH T AERS509SH AER512SH AER512SH SPLIT SYSTEM AIR CONDITIONER Indoor Unit AWR508HL AWR509HL AWR512HL FCR512HL Floor Mounted AER508SH AER509SH AER512SH 0 8180 153 0 02 2001 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 Carefully read this instruction booklet before beginning 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 or NE unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or AN unsafe practice which 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 sha
35. TEM DIAGRAM for the meaning of A B and C in Table 2 Table 2 lists recommended wire lengths and cross section area for power supply systems Table 2 Wa A Power Supply Wiring Length m B Power Line m C Control Line m Fuse or Circuit Breaker Capacit AER509SH Be sure to comply with WIRING SYSTEM DIAGRAM N WARNING local codes on running the Indoor unit Outdoor unit wire from the indoor unit to the outdoor unit size of wire and wiring method etc Each wire must be firmly connected No wire should be allowed to touch refrigerant tubing Power supply the compressor or any moving part To avoid the risk of electric WARNING shock each air conditioner 220 240 V 50Hz unit must be grounded Be sure to connect the AN power supply line to the indoor unit as shown in the wiring diagram The outdoor unit draws its power from the indoor unit 45 8 FUNCTION 8 1 Room Temperature Control Cooling Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit The room temperature and other information is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit Signal from remote control unit 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes Thermo Thermo Thermo Thermo Thermo OFF
36. UNIT Air outlet NOTE This illustration is based on the external view of a standard model Consequently the shape may differ from that of the air conditioner which you have selected This air conditioner consists of an indoor unit and an outdoor unit You can control the air conditioner with the remote control unit Air from the room is drawn into this section and passes through air filters which remove dust Conditioned air is blown out of the air conditioner through the air outlet Remote Control Unit The wireless remote control unit controls power ON OFF operation mode selection temperature fan speed timer setting and air sweeping Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which refrigerant gas flows Drain Hose Moisture in the room condenses and drains off through this hose Outdoor Condensing Unit The outdoor unit contains the compressor fan motor heat exchanger coil and other electrical components OI 858 05EG 5 Unit Display and Operation Selector Operation selector INDOOR UNIT Ai N IMPORTANT Il 4 REMOTE CONTROL receiver GD Avoid using radio equipment 0 such as mobile phone near N within 1 m the indoor unit Some radio eguipment may cause malfunction of the unit OPERATION OPERATION lamp TIMER TIMER lamp If the trouble happens dis STANDBY STANDBY lamp connect power and restart the air conditioner after a few minutes
37. an for details Each unit must be properly grounded with a ground or earth wire or through the supply wiring Wiring must be done by a qualified electrician oafety Instructions Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this Instruction Manual Never use or store gasoline or other flammable vapor or liquid near the 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 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 OI 858 04EG Names of Parts Air intake INDOOR UNIT jm DN c gt Air outlet Remote gt control LY unit A4 Drain hose 6 5 Refrigerant tubes OUTDOOR
38. ature and the temperature setting STEP 5 Press the FLAP button and set the airflow direction as desired Refer to Adjusting the Airflow Direction on page 21 To stop the air conditioner press the ON OFF operation button again 13 3 Adjusting the Fan Speed A Automatic Cooling and DRY mode Heating mode B Manual Operation with the Remote Control Unit continued 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 3 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 When the power is restored the unit will restart automatically after three minutes Simply set the FAN SPEED selector to the position A microcomputer in the air conditioner automatically controls the fan speed when the mode is selected When the air conditioner starts operating the difference between the room temperature and the set temperature is detected by the microcomputer which then automatically switches the fan speed to the most suitable level When difference between room temperature and set temperature is When difference between room temperature and set te
39. bing f replacing an older unit that used refrigerant R22 with a R407C unit do not use its existing tubing Instead completely new tubing must be used 60 10 TROUBLESHOOTING 10 1 Check before and after troubleshooting WON ee Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect power or turn off circuit breaker before you start checking or servicing 10 1 1 Check power supply wiring Check that power supply wires are correctly connected to terminals L and on the terminal plate in the indoor unit Power plug Indoor Inter unit Outdoor Local supply unit power wiring unit Power supply Single phase 220 240V 50Hz Inter unit control wiring 10 1 2 Check inter unit wiring Check that inter unit wiring is correctly connected to the outdoor unit from the indoor unit 10 1 3 Check power supply Check that voltage is in specified range 210 of the rating Check that power is being supplied 10 1 4 Check lead wires and connectors in indoor and outdoor units Check that coating of lead wires is not damaged Check that lead wires and connectors are firmly connected Check that wiring is correct 61 10 2 Air conditioner does not operate 10 2 1 Circuit breaker trips or fuse blows A When the circuit breaker is set to ON it is tripped soon Resetting is not possible There is a possibility of ground fault Check insulation resistance
40. compressor for at least 6 minutes The compressor does not start again until the temperature rises above 8 C or 6 minutes has elapsed Thermo OFF Thermo ON Room temp 1 C Set temp C More than 6 minutes ed Indoor heat exch coil temp 1 More than 1 More than 1 10 minutes 10 minutes Compressor ON ON OFF ON Indoor fan Set speed Set speed 1 Functionally compressor running period or time are of two types 10 minutes and 6 minutes depending upon production date 49 8 5 Overload Prevention Heating This function prevents overheating of the indoor heat exchange coil When the temperature of the indoor heat exchange coil rises above and if the indoor fan is L low speed then the fan speed changes from L low speed to M medium speed When the temperature of the indoor heat exchange coil rises above A C the outdoor fan stops Indoor heat exch coil C mmm 5 Outdoor fan ON Compressor ON The operation temperature shown as A B C and D in the chart differ by models a AWRS508HL AWRS509HL AWR512HL e 9 _ el se we se we 4 _ 50 8 6 Cold Draft Prevention Heating This function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat exchange coil have sufficiently warmed up STANDBY la
41. e tube diameter Wide tube Dimensions amp Weight Unit dimensions Package dimensions Height Width Depth Weight Net Shipping Shipping volume Remarks Rating conditions are Cooling Indoor air temperature 27 19 W B Outdoor air temperature 35 24 W B Heating Indoor air temperature 20 C D B Outdoor air temperature 7 D B 6T W B Auto 1 Hi Manual Auto Washable Anti Mold Rotary Hermetic R407c 770 Capillary tube 37 32 31 37 32 31 Flare type 7 5 6 35 1 4 9 52 3 8 Optional Air Clean Filter 270 540 265 243 568 343 35 0 38 0 m DATA SUBJECT TO CHANGE WITHOUT NOTICE Indoor Unit AWR509HL Outdoor Unit AER509SH Voltage rating 230 V Capacity BTU h Air circulation High m h Moisture removal High Liters h Electrical Rating Fan speeds Indoor Outdoor and Auto 1 Hi Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amount charged at shipment R407c 990 Refrigerant control Capillary tube Operation sound Indoor Hi Me Lo 37 32 31 37 32 31 Outdoor Hi Refrigerant tubing connections Max allowable tubing length at shipment Refrigerant Narrow tube in 6 35 1 4 tube diameter Wide tube in 9 52 3 8 Optional Air Clean Filter Dimensions amp Weight Indoor Unit Outdoor Unit Unit dimensions 270 540 265 Package dimensions Height 243 568 Depth 343
42. e 50 Rating Condiions Rumning Amps A ez Power Inout kW 0 031 0 062 1 207 Ful Load Conditions Running Amps Al 69 72 Power kW 0 031 0 062 1 427 Rating Conditions Indoor Air Temperature 27 19 W B Outdoor Air Temperature 35 Full Load Conditions Indoor Air Temperature 32 D B 23T W B Outdoor Air Temperature 43 D B HEATING Indoor Unit Outdoor Unit Complete Unit Performance at 230V 1 phase 50Hz Rating Gondor Running Amps Al 02 59 Power Inout kW 0 031 0 062 1 227 Full Load Conditions Running Amps A 013 7s seo Power Input kW 0 031 0 062 1 617 Rating Conditions Indoor Air Temperature 20 C D B Outdoor Air Temperature 7 6 W B Full Load Conditions Indoor Air Temperature 27 D B Outdoor Air Temperature 24 18 W B 36 Indoor Unit FCR512HL Outdoor Unit AER512SH COOLING Indoor Unit Outdoor Unit Complete Unit Performance at 230V 50Hz Fang Onion Rams a Power Input kW 0 070 0 076 1 154 Full Load Conditions Running Amps A 6 59 Power Input kW 0 070 0 076 1 374 18 Rating Conditions Indoor Air Temperature 27 C 19 W B Outdoor Air Temperature 35 D B Full Load Conditions Indoor Air Temperature 32 23 W B Outdoor Air Temperature 43 C D B HEATING Indoor Unit Outdoor Unit Complete Unit
43. eed LL very low speed intermittent ventilation Set temp T C only while the compressor is ON 1 Dry B zone Compressor Intermittent operation ON for 3 minutes and OFF for 9 minutes FMI indoor fan L low speed LL very low speed intermittent ventilation only while the compressor is ON Room temp 15 C Monitor zone Both the indoor and outdoor units stop Intermittent ventilation occurs by switching the indoor fan speed between L lt gt LL Dry operation does not occur when the room temperature is under 15 C which is the monitor zone When the compressor stops the indoor fan stops as well 8 3 Automatic Switching between Cooling and Heating 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 to maintain the desired temperature Room temp Set temp gt COOL Room temp Set temp gt HEAT This means that if the room temperature is higher than or equal to the set temperature COOLING operation begins If the room temperature is lower than the set temperature HEATING operation begins 48 8 4 Freeze Prevention Cooling This function prevents freezing of the indoor heat exchange coil When the compressor has been running for 10 minutes or more and the temperature of the indoor heat exchange coil falls below 1 C the control circuit stops the
44. ermo ON OFF ON gt en EN ANAA minutes 5 minutes Room temp 30 ER 30 seconds Set speed mm M coil temp 1 Tc C Solenoid coil 4 way valve Reversing cycle Operation button ON OFF The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at least 5 minutes To protect the compressor from stalling out when trying to start against the high side refrigerant pressure the control circuit has a built in automatic time delay to allow the internal pressure to equalize 6 As a protective measure the control circuit switches the compressor OFF after 5 minutes or more of compressor operation Thermo ON When the room temperature is below T 1 C T C is set temperature Compressor ON Thermo OFF When the room temperature is equal to or above set temperature T C Compressor gt OFF 1 Refer to 8 6 Cold Draft Prevention 47 8 2 Dry Operation Dehumidification Dry operation uses the ability of the cooling cycle to remove moisture from the air but by running at low level to dehumidify without greatly reducing the room temperature The air conditioner repeats the cycle of turning ON and OFF automatically as shown in the chart below according to the room temperature Room temp Cooling operation T 2 C Dry A zone Compressor Continuous operation FMI indoor fan L low sp
45. es less than 20 of the fully charged amount the composition of the refrigerant starts to change Thus do not use m Valve the refrigerant if the amount in the refrigerant cylinder is less than 2096 Also charge the minimum necessary amount to the cylinder before using it for charging the air conditioning unit Example In case of charging refrigerant to a unit requiring 0 76Kg using a capacity of 10Kg cylinder the minimum necessary amount for the cylinder is 0 76 10 x 0 20 2 76Kg o Single valve with siphon tube For the remaining refrigerant refer to the Charge with the cylinder in the Fia 2 instructions of the refrigerant manufacturer normal position g lt If using a charging cylinder transfer the specified Configurations and characteristics of cylinders amount of liquid refrigerant from the refrigerant cylinder to the charging cylinder Prepare an evacuated charging cylinder beforehand To prevent the composition of R407C from changing Charging never bleed the refrigerant cylinder gas into the atmosphere while transferring the refrigerant Fig 3 Do not use the refrigerant if the amount in the charging cylinder is less than 20 6 Refrigerant cylinder Fig 3 57 9 6 In case refrigerant is leaking Never attempt to charge additional refrigerant when refrigerant has been leaking CAUTION from the unit Follow the procedure described below to locate points of leaks and carr
46. g Capacity Heating capacity ratio e eee Cee eee eee Oe ee Cee eccccccccogocceccccecccccl M des semens evene 000000000000000000000000000900000000000000000900000000000900900000009000 8 eee eee eee eee eee Eee eee EERE COREE eee eee
47. gerant 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 Page OPERATING RANGE SPECIFICATIONS BENE Unit Specification Major Component Specifications WX Other Component Specifications 15 DIMENSIONAL DATA REFRIGERANT FLOW DIAGRAM PERFORMANCE DATA Performance Charts Air Throw Distance Chart Cooling Capacit Heating Capacit 6 ELECTRICAL DATA Electrical Characteristic Electric Wiring Diagrams INSTALLATION INSTRUCTIONS Installation Site Selection Remote Control Unit Installation Position Recommended Wire Length and Diameter FUNCTION 8 1 Room Temperature Control 8 2 Dry Operation 8 3 Automatic Switching between Cooling and Heatinc 8 Freeze prevention 8 6 Cold Draft Prevention 4 Overload Prevention Defrosting Operation Characteristics of new refrigerant R407c Checklist before servicing 3 Tools specifically for R407c For tubing installation procedures n case of compressor malfunction n case refrigerant is leakino 7 Charging additional refrigerant Retro fitting existing systems TROUBLESHOOTING lo 1 Check before and after troubleshooting 2 Air Conditioner Does not operate 0 3 Some Parts of Air Conditioner does not o
48. he air conditioner responds correctly when you press keys on the remote control from that position 3 After confirming correct operation use a screwdriver to screw the mounting screw into the wall 4 Hang the remote control unit from the mounting screw B Non removable mounting 1 Momentarily hold the remote control unit at the desired mounting position 2 Confirm that the air conditioner responds correctly when you press keys on the remote control from that position 3 After confirming correct operation use a screwdriver to screw the mounting screw into the wall 4 Remove the batteries of the remote control unit 5 Use a screwdriver to screw the remote control unit securing screw into the wall through the hole in the battery compartment 6 Replace the batteries 7 Again confirm that the remote control unit operates correctly OI 858 11EG 11 1 Automatic Operation 12 Operation with the Remote Control Unit NIGHT SETBACK Check that the circuit breaker on the power panel is turned on and that the operation selector of the indoor unit is in the ON position 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 to A STEP 2 Press the ON OFF operation button To stop the air conditioner press the ON OFF
49. his 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 WARNING This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death practice which can result in personal injury or product or property damage CAUTION This symbol refers to a hazard or unsafe Installation Location 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 is the same as the voltage shown on the nameplate 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 Electrical Requirements 1 2 3 All wiring must conform to the local electrical codes Consult your dealer or a qualified electrici
50. ing operation and heating operation according to the difference between the room temperature and the temperature setting OI 858 09EG The remote control unit sends the temperature signal to the air conditioner regularly at three minute intervals If the signal from the remote control unit stops for more than ten 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 How to Install Batteries How to Use the Remote 10 Control Unit Remote Control Unit Installation Position DO NOT Using the Remote Control Unit 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 Usea thin object such as the tip of a pen to press the ACL button 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 me
51. ized gas and never use a refrigerant other than R407C Also do not use oxygen or any flammable gas 3 Checking for sealing OK 4 Evacuation 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 5 Recharging e When using a vacuum pump with exhaust air volume more than 25L min and ultimate vacuum pressure rate of 0 05Torr Standard time of evacuation Length of tubing Less than 10 m More than 10 m More than 10 min More than 15 min 4 Evacuation OK 56 5 Recharging m Valve Be sure to charge the specified amount of refrigerant in liquid state using the service port of 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 Never charge a large amount CAUTION of liquid refrigerant at once to the unit This may cause gt damage to the compressor Single valve Charge the liquid refrigerant When charged with a refrigerant cylinder use the in ne Fig 1 up side down position electronic scale for charging refrigerant In this case if the volume of refrigerant in the cylinder becom
52. l of Electrical Component Box Jij Kn Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect the power or turn off circuit breaker before you start checking or servicing 1 Remove the front screw with a screwdriver Fig 4 Slide the lid out and up Fig 4 Disconnect the wiring as necessary 4 Remove the 4 screws then pull out the electrical component box Fig 5 74 Hook Hook Tapping screws 4 x 10 mm Fig 3 Fig 4 Connectors Fig 5 12 4 Removing Flap Motor 1 Remove the 3 screws used to mount the top panel Fig 6 2 While unlatching the 2 tabs inside the back of the top panel lift the top panel diagonally in the direction of the arrow Fig 6 3 Remove the 2 screws to pull off the flap motor The arm and cam come off together with the motor Fig 7 12 5 Removing Evaporator Fig 7 zIndoor Heat Exchange Coil 1 Remove the 7 screws used to mount the blades Fig 8 Blades 2 Lift the blades in the direction of the arrow Fig 8 Ors a Fig 8 75 3 Remove the 6 screws of the front panel and pull it toward you Fig 9 4 Remove the 2 screws used to mount the evaporator Fig 10 5 Remove the rubber cap to pull the thermistor out of the evaporator Fig 10 6 Cut the plastic clamp securing the drain hose to the front fan casing Fig 10 7 The evaporator is built into the drain pan Pull out the drain pan together with the
53. ll in no way be responsible for improper installation or maintenance service including failure to follow the instructions in this document Special Precautions 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 Be careful when picking up and moving the indoor 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 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
54. mp on front of the indoor unit lights up when this function is working when 10 minutes has elapsed the fan speed is automatically switched to set speed regardless of indoor heat exchange coil temperature Indoor heat exch coil temp C Max 10minutes Tc Standby lamp NOTE The operation temperature shown as Tc in the chart differ by models AWR508HL AWR509HL AWR512HL 51 8 7 Defrosting Operation Heating E Defrosting Flowchart Compressor ON Release of overload prevention Outdoor fan operates Overload prevention works Does outdoor fan stop Outdoor fan is either operated Indoor heat exchanger coil Integrated operating time of Integrated operating time of or stopped for more than 10 temperature drops 0 8 C per compressor is more than compressor is more than 1 5 minutes 6 minutes and it repeats 3 hours hours 3 times in succession Is outdoor fan continuously 1 operating for more than 10 Temperature of indoor heat Thermo OFF minutes exchanger coil is below Ta C Compressor OFF Integrated operating time of compressor is more than 50 minutes Temp of indoor heat exch coil immediately before thermo goes off is either below Ta 4 C or Tb 4 C when overload prevention works Temperature of indoor heat exchanger coil is below Ta 13 C See table below Compressor keeps running for at least 6 minutes Compressor keeps running for at least
55. mperature is The above table assumes that the sensor on the remote control is being used If the sensor on the indoor unit is being used the indicator is on actual operation may differ slightly from the operation described in the table Refer to A C SENSOR button on page 9 If you want to adjust fan speed manually during operation just set the FAN SPEED selector as desired 3 OI 858 14EG Operation with the Remote Control Unit continued 4 Night Setback Mode SET TEMP ON I OFF Eee CL OFF ON MODE p SET FLAP 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 A In Cooling and DRY Mode When the night setback mode is selected the air conditioner and 4 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 1 Ee Press the 30 mih NIGHT SETBACK button 01 858 15EG 15 Operation with the Remote Control Unit continued B In Heating Mode 88 Cin When the
56. n be uniformly air conditioned High on a wall is best select a location that will hold the weight of the unit select a location where tubing and drain pipe have the shortest run to the outside allow room for operation and maintenance as well as unrestricted air flow around the unit Fig 1 install the unit within the maximum elevation difference H above or below the outdoor unit and within a total tubing length L from the outdoor unit as detailed Table 1 and Fig 2a Table 1 Max Allowable Tubing Length at n Limit of Tubing Length L Shipment m m Mmmm 15cm min 15cm INDOOR UNIT ACT Fig 1 Tubing length L INDOOR UNIT Elevation difference H OUTDOOR For stable operation of the air conditioner do not install wall mounted type indoor units under 1 5m from floor level Indoor Unit Minimum height 4 from floor level 1 5m Floor level Fig 2b Limit of Elevation Required Amount of Difference H Additional Refrigerant m g m AWR512 a 15 g m or b 25 g m e additional charge of compressor oil is necessary If total tubing length becomes a 7 5 to 15 m b 7 5 to 20 m max charge additional refrigerant R407c by AVOID heat sources exhaust fans etc Fig 3 damp humid or uneven locations DO ible choose a place as cool as possible T choose a place that is well ventilated allow enough r
57. n use a probe with a thinner pin T1 power plug Local supply Insulation tester The shape of the power plug may differ from that of the air conditioner which you are servicing Fig 1 Terminal plate robe IZ Clip Copper Insulation tube or metallic part Fig 2 Cli Copper tube or metallic part Insulation tester Fig 3 From fan motor compressor and other parts Metallic part Clip Insulation tester Fig 4 11 2 Checking Continuity of Fuse on PCB Ass y Remove the PCB Ass y from the electrical component box Then pull out the fuse from the PCB Ass y Fig 5 Check for continuity using a multimeter as shown Fig 6 11 3 Checking Motor Capacitor Remove the lead wires from the capacitor terminals and then place a probe on the capacitor terminals as shown in Fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is good if the pointer bounces to a great extent and then gradually returns to its original position The range of deflection and deflection time differ according to the capacity of the capacitor 72 Fuse PCB Ass y e Fig 5 D Fig 6 Fan motor capacitor Multimeter Fig 7 12 DISASSEMBLY PROCEDURE FOR INDOOR UNIT N IMPORTANT Please Read Before Starting Safety precautions for
58. ng proportions HFC32 23 HFC125 25 HFC 134a 52 9 1 3 Characteristics 6 Less toxic more chemically stable refrigerant Composition of refrigerant R407C changes whether it is in 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 composition 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 liquid phase When refrigerant R407C 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 the liquid phase Ether type oil is used for the compressor oil for R407C type units which is N CAUTION different from the mineral oil used for R22 Thus more attention to moisture prevention and faster replacement work compared with conventional models are required 9 2 Checklist before servicing Tubing precautions Refrigerant R407C is more 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
59. ng system operates At the same time the fan on the indoor unit stops or runs at very low speed in some cases and the STANDBY lamp remains lit 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 STANDBY lamp For several minutes after the start of heating operation the indoor fan will not start running until the indoor heat exchanger coil has warmed up sufficiently This is because the COLD DRAFT PREVENTION SYSTEM is operating During this period the L m STANDBY lamp remains lit OPERATION STANDBY lamp also remains lit during defrosting or when the compressor has been turned off by the thermostat when the system TIMER e is in the heating mode STANDBY Upon completion of defrosting and when the compressor is turned on again for heating operation the STANDBY lamp will go off automatically STANDBY lamp Power failure n the event of power failure the unit will stop When the power is resumed the unit will restart automatically after three minutes during operation Clicking Sound Clicking sound is e n heating or cooling operation any plastic parts may expand or heard from the air shrink due to a sudden temperature change In this event a clicking conditioner sound may occur This is normal and the sound will soon disappea
60. nt refer to the instructions Charge with the cylinder in the Fig 5 of the refrigerant manufacturer normal position Configurations and characteristics of cylinders e If using a charging cylinder transfer the specified amount of liquid refrigerant from the refrigerant cylinder to the charging cylinder Prepare evacuated charging cylinder beforehand gt N 1 a J To prevent the composition TS of R407C from changing b cylinder never bleed the refrigerant gas into the atmosphere while transferring the refrigerant Fig 6 Do not use the refrigerant if the amount in the charging cylinder is less than 20 Refrigerant cylinder Fig 6 59 9 7 Charging additional refrigerant 9 7 1 When tubes are extended 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 Never charge additional refrigerant if refrigerant is leaking from the unit Follow N CAUTION instructions given in 10 6 In case refrigerant is leaking and completely carry out repairs Only then should you recharge the refrigerant 9 8 Retro fitting existing systems 9 8 1 Use of existing units Never use new refrigerant R407C for existing units which use R22 This will cause the air conditioner to operate improperly and may result in a hazardous condition 9 8 2 Use of existing tu
61. ntioned in the sub section How to Install Batteries f you do not use the remote control unit more than 1 month take out the batteries When using the remote control unit always point the unit s transmitter head directly at the air conditioner s receiver Air conditioner Indoor unit N Receiver Remote control e Transmitter head unit 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 n direct sunlight Behind a curtain or other places where it is covered e than 8 m away from the air conditioner n 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 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 3 minutes OI 858 10EG Using the Remote Control Unit continued Mounting the Remote Control Unit Removable mounting Non removable mounting Wall Wall s En A 2 al a 00 0 0 35 Packed the E indoor unit Packed in the indoor unit Mounting on a wall A Removable mounting 1 Momentarily hold the remote control unit at the desired mounting position 2 Confirm that t
62. o 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 If while the 1 Hour Timer function is operating the 1 HR TIMER button is pressed once to cancel the function and then again the unit continues to operate for one hour from that point in time and then stops The Program Timer and 1 Hour OFF Timer may be used together It 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 OI 858 20EG 1 Horizontal AN esum 2 Vertical NIGHT SETBACK U AIC SENSOR A Sweep function Adjusting the Airflow Direction The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right _ _ _ ITIL 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 form around the air vent and drip down 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 t
63. oom around the unit for air intake exhaust and possible maintenance Figs 4b and 4c provide a solid base concrete block 10 X 40 cm beams or equal a minimum of 10 cm above ground level to reduce humidity and protect the unit against possible water damage and decreased service life Fig 5b use lug bolts or equal to bolt down unit reducing vibration and noise Required space around the unit Obstacle above Air intake Min 10 cm Valve side Min 25 3 Min 5 Air discharge Air discharge S 8 Top View Fig 4b Ground Side View Fig 4c Anchor bolts 4 pcs ES Ay E Air intake X z Min 10 cm NY Concrete E N or equal S a RN out 10 em Fig 5b 43 7 2 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 that 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 Mounting on a Wall a Removable mounting 1 Momentarily hold the remote control unit at the desired mounting position
64. oom warmer The air conditioner reduces the humidity in the room The air conditioner makes the room cooler Press this button either to select to set the airflow direction to one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically A The airflow direction can be set manually six positions z The flap moves up and down automatically To switch to the sweep function 7 when in the manual mode hold down the FLAP button The air conditioner automatically decides the fan speeds 9 High fan speed Medium fan speed Low fan speed When you press this button regardless of whether the unit is operating or stopping the unit operates for one hour and then shuts down ACL button Puts the remote control unit into pre operation status Always press ALL CLEAR this button after replacing the batteries A C 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 A C SENSOR button to switch to the sensor on the indoor unit Automatic switching between cooling and heating This unit automatically switches between cool
65. operation button again change the temperature setting press the temperature setting buttons and change the setting to the desired temperature The A indicates the upper limit for the temperature setting and the indicates the lower limit Although the fan speed is set automatically you can change the fan speed by pressing the FAN SPEED button perm HB 9 i O1 858 12EG 2 Manual Operation Ol 858 13EG Operation with the Remote Control Unit continued TIMER Y TEMP A LOCK STEP 1 STEP 5 STEP 4 Check that the circuit breaker on the power panel is turned on and that the operation selector of the indoor unit is in the ON position 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 STEP 1 Press the MODE selector button and select the desired mode For heating operation gt For dehumidifying operation gt For cooling operation gt 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 temperature Adjustable temperature range 30 C max 16 C min STEP 4 Set the FAN SPEED selector button to the setting you want NOTE If the fan speed is set to Automatic the fan speed switches automatically according to the difference between the actual room temper
66. perate 66 _ Air Conditioner Operates but abnormalities are observed 68 If a sensor is defective CHECKING ELECTRICAL COMPONENTS 11 1 Measurements of insulation resistance E 2 Checking continuity of fuse on PCB ass 1 3 Checking motor capacitor 2 DISASSEMBLY PROCEDURE FOR INDOOR UNIT Removing air intake grille Removing side panels Removing flap motor 5 Removing evaporator 12 6 Removing fan and fan motor E d 112 3 Access and removal of electrical components box a uni NEN APPENDIX Instructions manual 1 OPERATING RANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp 32 C D B 23 WB 43 C DB Cooling 19 0 DB 4 6 WB 19C DB 27 C DB 24 C DB 180 WB eatin i 16 DB 8C D B 9C WB 2 SPECIFICATIONS 2 1 Unit Specifications Indoor Unit AWR508HL Outdoor Unit AER508SH Voltage rating 230 V Performance Capacity BTU h Air circulation High m h Moisture removal High Liters h Electrical Rating Power factor C O P Compressor locked rotor amperes Controls Temperature control Control unit Timer Fan speeds Indoor Outdoor Airflow direction Indoor Horizontal Vertical Air filter Compressor Refrigerant Amount charged at shipment Refrigerant control Operation sound Indoor Hi Lo Outdoor Hi Refrigerant tubing connections Max allowable tubing length at shipment Refrigerant Narrow tub
67. r The remote control unit sends the setting condition to the air Remote control unit conditioner regularly at three minute intervals OI 858 17EG 17 Setting the Timer NOTE The description below assumes that the switch on the back of the remote control unit has been set to the degrees Celsius display 1 How to set the Example To set to 21 10 present time Operation _ 1 Press the Program button C 772 The time indication alone three times flashes a gt 01 P the HH butt til 21 i The display will 04 ress the utton unti IS p ay displayed automatically stop flashing Press the MM button until 10 is except for the symbol displayed after 10 sec 2 How to set the Example To stop the air conditioner at 23 30 OFF time 1 Press the Program button C 79 5 The timer o and time once indications flash Press the HH button until 23 is dis The display will change played automatically back to show Press the MM button until 30 is dis the present time after 10 played Sec 3 Press the ON OFF button to start the The present time is dis air conditioner played 4 Press the TIMER SELECT button to set The present time and OFF time 9 are displayed 18 01 858 18 Setting the Timer continued 3 How to set the ON time Example To start operation at 7 10 overtreden _ 1 Press the Program button C 772 The timer ON and time twice
68. 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 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 your 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 AN e Ventilate any enclosed areas when installing or testing the refrigeration system Escaped refri
69. re COOL HEAT Is room temperature too low Is room temperature too high NO NO Try to raise setting temperature by temperature setting button button Try to lower setting temperature by temperature setting button v button Outdoor unit still does Outdoor unit still does not run not run Y Try to run using another remote Try to run using another remote control unit control unit OK OK Remote control unit is defective Remote control unit is defective B Check PCB Ass y in either indoor or outdoor unit Check voltage between terminals No 1 and No 2 at the terminal Outdoor PCB Ass y is defective plate DC 24V No voltage appears e Indoor PCB Ass y is defective 10 2 4 Only Indoor unit does not run e Indoor PCB Ass y is defective 65 10 3 Some part of air conditioner does not operate 10 3 1 Only indoor fan does not run Check fan casing foreign matter on inside Remove foreign matter or repair Fan cannot Check fan rotation be turned Turn fan gently once or twice by hand Fan motor burnout or foreign matter in Repair or replace bearings Measure resistance of indoor fan motor winding Check fan motor capacitor 10 3 2 Only flap motor does not run Measure resistance of flap motor winding 10 3 3 Only outdoor fan does not run Check fan casing foreign matter on Remove foreign matter or repair
70. rectly Change position of remote control unit Insulate both wide and narrow tubes separately and then tape together Wide and narrow tubes between indoor unit and outdoor unit are insulated Temperature difference Measure temperature of suction and small Possibility of Charge refrigerant discharge air of air conditioner gas shortage gas R407c Temperature difference between suction and discharge air is large enough approx 10 deg or more Check for clogging of air filter Clean filter Air filter is clogged YES Fan speed is set to LOW Wd Hen Reduce cooling or heating load or replace the air Review cooling load estimate if performance of air conditioner is conditioner with larger Capacity normal 10 4 3 Excessive cooling or heating Set temperature to higher or NO lower value using tem perature Set temperature is suitable setting buttons of the remote control unit Remote control unit is placed where it can detect room temperature properly control unit 69 10 5 If a sensor is defective 10 5 1 Indoor coil temp thermistor TH1 is defective Operation lamp on front side of YES indoor unit is flashing on and off Thermistor TH1 is defective YES Replace thermistor Niens Alarm Signal Operation lamp on the front side of the indoor unit will flash on and off when the indoor coil thermistor
71. s OK 4 Checking for sealing OK 5 Evacuation OK 6 Recharging Length of tubing Less than 10 m More than 10 m More than 10 min More than 15 min 58 6 Recharging Valve Be sure to charge the specified amount of refrigerant in liquid state using the service port of 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 Never charge a large amount CAUTION of liquid refrigerant at once to the unit This may cause M A damage to the compressor Single valve Charge the liquid refrigerant When charged with a refrigerant cylinder use the with the cylinder in the Fig 4 electronic scale for charging refrigerant In this case if up side down position the volume of refrigerant in the cylinder becomes less than 209 of the fully charged amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the refrigerant T vane cylinder is less than 20 Also charge the minimum necessary amount to the cylinder before using it for charging the air conditioning unit Example In case of charging refrigerant to a unit requiring 0 76Kg using a capacity of 10Kg cylinder the minimum necessary amount for the cylinder is 0 76 10 x 0 20 2 76Kg Single valve with siphon tube For the remaining refrigera
72. s necessary to get the STK ARF4B 50 model with frame When changing the filter subsequently it is only necessary to replace the filter itself model STK F4B 50 This air clean filter cannot remove harmful gases or vapors nor ventilate air in the room You must open doors or windows frequently when you use gas or oil heating appliances Otherwise there is a risk of suffocation in extreme cases The air clean filter needs to be installed behind the anti mold Air filter clean 1 Remove the anti mold filter filter 2 Install the air clean filter in the position shown tn the diagram with the symbols meaning FRONT facing the front 3 Reinstall the anti mold filter Wipe clean using a soft dry cloth To remove stubborn dirt moisten a cloth in warm water no hotter than 40 C wring thoroughly and then wipe he air intake grille can be removed in order to wash it with water With the air intake grille open all the way grip Air intake grille both arms with your hands and pull toward you to remove To remount hold the air intake grille roughly horizontal and push it in until the arm shafts fit into the indentations in the main unit then fit the grille into place When using a footstool or the like be careful not to let it tip over e Clean the grille gently using a soft sponge or the like Then wipe away any remaining moisture Neutral detergent may be used to remove
73. secati4A 20 Run capacitor UF VAC Crank case heater Fan amp Fan Motor No of poles rom 230 V High 6 810 Coil resistance Ambient temp 20 WHT BRN 341 392 WHT PNK 476 548 Safety devices Type Operating temp Fin pitch Face area DATA SUBJECT TO CHANGE WITHOUT NOTICE Outdoor Unit AER509SH Controller PCB POW C96GH Compressor Rotary Hermetic C RNOOHSB 80228345 5 ROTARY OIL 470 0 Coil resistance Ambient temp 25 3 07 C S 6 69 Safety devices Type Overload relay Operating temp Close OperngampiAmbienttemp 26 Trpin 6to 16sec atte 25 Run capacitor uF VAC Crank case heater Fan amp Fan Motor No of poles rom 230 V High 6 810 Coil resistance Ambient temp 20 WHT BRN 341 392 WHT PNK 476 548 Safety devices Type Operating temp Fin pitch Face area DATA SUBJECT TO CHANGE WITHOUT NOTICE 13 Outdoor Unit AER512SH Controller PCB POW C96GH Compressor Type Rotary Hermetic Compressor model C RN110H5B 80235645B Nominal output 1 100 Compressor oil Amount FV68S 550 Coil resistance Ambient temp 25 1 962 C S 5 38 Safety devices Overload relay Operating temp Close Operating amp Ambienttemp 25 Tripin6to16sec ati4A_ CST 25 Run capacitor F VAC 9 Crank case heater Fan amp Fan Motor Propeller 0370 K35610MO1722
74. servicing the CEILING MOUNTED indoor unit Before attempting to replace heavy and bulky parts such as the evaporator and fan motor disconnect the indoor unit from the system and place it on the floor Refer to the steps given below When checking or servicing the air intake grille side panels or electrical component box first check that power is completely disconnected Pay utmost care that your working platform is stable enough Also do not drop any replaced parts and tools on the floor For Floor Installation 12 1 Removing Air Intake Grille 1 Hold both ends and pull forward to open the air intake grille Fig 1 2 Remove the metal clips connecting the unit and the grille First with a screwdriver loosen the marked screw a little at the right side clip DO NOT loosen it too much otherwise the screw and small metal parts will fall off inside then press on the stopper and pull off Fig 2 3 Do the same procedure for the left metal clip Fig 1 4 Unlatch the 2 tabs on the lower part of the grille to take it off completely Unit Air intake grille Metal clip Fig 2 73 12 2 Removing Side Panels 1 Remove the 3 screws attaching the left side panel Fig 3 2 Note the position of the hook on the inside of the left side panel To disengage the hook from the slot slide down the panel for removal Fig 3 3 Do the same procedure for the right side panel 12 3 Access and Remova
75. st not be used for R22 Doing so will N CAUTION cause malfunction of the unit For the above vacuum pump 21 2 and vacuum pump adapter 23 those for R22 type units can be used for R407C type However they must be used exclusively for R407C and never alternately with R22 9 4 For 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 NOTE For details on tubing installation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 55 9 5 In case of compressor malfunction Should the compressor malfunction be sure to replace compressor as quickly as CAUTION possible Use only the tools indicated exclusively for R407C gt See 10 3 Tools specifically for R407C 9 5 1 Procedure for replacing compressor 1 Recovering refrigerant Any remaining refrigerant inside the unit should not be released to the atmosphere but recovered using the refrigerant recovery unit for R407C 1 Recovering refrigerant OK Do not reuse the recovered refrigerant since will contain impurities 2 Replacing compressor 2 Replacing compressor OK e Soon after removing pinched pipes of both discharge and suction tubes of the new compressor replace it quickly 3 Checking for sealing Use nitrogen gas for the pressur
76. t floors due to dripping of condensation both tubes must be well insulated with a proper insulation material The thickness of the insulation should be a min 8 mm After a tube has been insulated CAUTION never try to bend it into a narrow curve because it can cause the tube to break or crack 20 Capillary tube Thickness Min 8 mm Wide tube Compressor Heat exchanger Cooling cycle Heating cycle Insulation zx Thickness Min 8 mm Narrow tube 5 PERFORMANCE DATA 5 1 Performance charts Indoor Unit AWR508HL Outdoor Unit AER508SH Cooling Characteristics Heating Characteristics Indoor inlet air D B temp C Indoor inlet air D B temp C lt lt z 5 5 O O O O 27 20 15 25 30 35 40 45 50 5 0 5710 15 20 25 Outdoor inlet air D B temp C Outdoor inlet air D B temp C Indoor inlet air D B temp C Indoor inlet air D B temp C Low pressure at wide tube service valve MPa kgf cm G High pressure at wide tube service valve MPa kgf cm2G 25 30 35 40 45 50 5 0 5710 15 20 25 Outdoor inlet air D B temp C Outdoor inlet air D B temp C Overload prevention operates to protect the air conditioner when outdoor ambient temperature reaches extremely high in heating mode Refer to 8 5 Overload prevention Points of Rating condi
77. t running If you want to turn on the air conditioner switch the operation selector to the OFF position and then to the ON position Operation NOTE The set temperature and fan speed are automatically set at niri the last selection before stopping 2 When the air conditioner is running If you want to turn off the air conditioner switch the operation selector to the OFF position Care and Cleaning WARNING 1 For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning 2 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 Clean the casing and grille of the indoor unit with a vacuum cleaner Indoor Unit brush or wipe them with a clean 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 CAUTION 1 Never use solvents or harsh 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 22 OI 858 22EG Care and Cleaning continued
78. te Control Unit RCS 8HPS3E Type Dia and length mm Fan motor model Oy No of poles rpm 230 V High Nominal output Coil resistance Ambient temp 20 BRN WHT VLT WHT VLT ORG YEL ORG Safety devices Type Operating temp Open Run capacitor Flap Motor Heat Exch Coil DATA SUBJECT CHANGE WITHOUT NOTICE Indoor Unit AWRS509HL Controller PCB EE Oll V Part No POW K78EH A POW K8EH B Controls Control circuit fuse 250V 3 15A Remote Control Unit RCS 8HPS3E Type Dia and length mm Fan motor model Oy No of poles rpm 230 V High Nominal output Coil resistance Ambient temp 20 BRN WHT 561 8 VLT WHT 197 4 VLT ORG 63 4 YEL ORG 155 7 YEL PNK 115 9 Safety devices Type Internal fuse Operating temp Open 145 2 Flap Motor WHT BLU respectively 4 wires 380 7 Heat Exch Coil DATA SUBJECT TO CHANGE WITHOUT NOTICE Indoor Unit AWR512HL Controller PCB EE Oll V Part No POW K128EH A POW K8EH B Controls Control circuit fuse 250V 3 15A Remote Control Unit RCS 8HPS3E Type Dia and length mm Fan motor model Oy No of poles rpm 230 V High Nominal output Coil resistance Ambient temp 20 BRN WHT 561 8 VLT WHT 197 4 VLT ORG 63 4 YEL ORG 155 7 YEL PNK 115 9 Safety devices Type Internal fuse Operating temp Open Flap Motor WHT BLU respectively 4 wires
79. tion 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 21 Indoor Unit AWR509HL AFR509HL Outdoor Unit AER509SH Cooling Characteristics Heating Characteristics Indoor inlet air D B temp C Indoor inlet air D B temp C lt lt z 5 5 O O O O en en 25 30 35 40 45 50 5 0 5710 15 20 25 Outdoor inlet air D B temp Outdoor inlet air D B temp C Indoor inlet air D B temp C Indoor inlet air D B temp C Low pressure at wide tube service valve MPa kgf cm G High pressure at wide tube service valve MPa kgf cm2G 25 30 35 40 45 50 5 0 5710 15 20 25 Outdoor inlet air D B temp C Outdoor inlet air D B temp C Overload prevention operates to protect the air conditioner when outdoor ambient temperature reaches extremely high in heating mode Refer to 8 5 Overload prevention 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 22 Indoor Unit AWR512HL FCR512HL Outdoor Unit AER512SH
80. tubing Unit mm 17 Outdoor Unit AER508SH AER509SH AER512SH 4 g12 holes Wide tube service valve 9 52 3 8 AER508 AER509 12 7 1 2 AER512 Narrow tube service valve 6 35 1 4 Unit mm 18 4 REFRIGERANT FLOW DIAGRAM Indoor Unit AWR508HL Outdoor Unit AER508SH Indoor unit Outdoor unit EE E a 5 Wide tube Accumulator service Wide tube valve E 1 1 D 5 5 S o Narrow T tube service Capillary tube Narrow tube Capillary tube P aed HS Strainer O D Check 06 35 mm valve Indoor Unit AWR509HL Outdoor Unit AER509SH AFR509HL Indoor unit Outdoor unit vocc Widetub Accumulator service que ES valve Compressor Heat exchanger Heat exchanger Narrow tube service Capillary tube Narrow tube gt O D 06 35 mm 1 4 19 Ss Cooling cycle Cooling cycle Indoor Unit AWR512HL Outdoor Unit AER512SH FCR512HL Indoor unit Outdoor unit 44 Pe SS ee Wide tube _ Accumulator Wide tube O D 912 7 mm 1 2 Heat exchanger Narrow tube service Narrow tube valve CED Strainer Insulation of Refrigerant Tubing IMPORTANT Because capillary tubing is used in the outdoor unit both the wide and narrow tubes of this air conditioner become cold To prevent heat loss and we
81. urned on Use the FLAP button to set either the sweep function or one of the six airflow direction settings 27 Setting the Airflow Manually The flap starts moving up and down to Referring to the above illustration use 74 deliver air over the sweep range the FLAP button to set the airflow NE OI 858 21EG direction within the range used during the heating cooling or dehumidifying operation 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 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 close and then turn on the unit again the flap position will now be normal again Do not have the flap pointed down during cooling operation Condensation may begin to form around the air vent and drip down 21 Operation without the Remote Control Unit INDOOR UNIT If you have lost the remote control unit or it has trouble follow the steps below 1 When the air conditioner is no
82. y out repairs then recharge the refrigerant 1 Detecting Leaks Use the detector for R407C to locate refrigerant leak points 2 Recovering refrigerant Never release the gas to the atmosphere recover residual refrigerant using the refrigerant recovery unit for R407C instead Do not reuse the recovered refrigerant because its composition will have been altered 3 Welding leaking points Confirm again that no residual refrigerant exists in the unit before starting welding Weld securely using flux and wax for R407C 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 Use nitrogen gas for the pressurized gas and never use a refrigerant other than R407C Also do not use oxygen or any flammable gas 5 Evacuation 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 of evacuation 1 Detecting leaks OK 2 Recovering refrigerant OK 3 Welding leaking point

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