Euro-Line ADR518CW Technical & Service Manual Download Page 47 | Manualshive

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(c) Check power supply

• Check that voltage is in specified range (± 10% of the rating).
• Check that power is being supplied

(d) 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 connected firmly.
• Check that wiring is correct.

L1

L2

L3

N

400V

400V

230 V

400V

L

N

220V

Single-phase systems

Three-phase systems

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Summary of Contents for ADR518CW

Page 1: ...SPLIT SYSTEM AIR CONDITIONER INDOOR UNIT OCTOBER 01 TECHNICAL SERVICE MANUAL ADR518CW AE518SC AE518SC3 AER518SCL3 ADR518HW AE518SH AE518SH3 AER518SH3 0 8180 224 0 OUTDOOR UNIT ...

Page 2: ... REFRIGERANT FLOW DIAGRAM 31 G TROUBLESHOOTING COOLING MODEL 36 I SAME PARTS OF AIR CONDITIONER DO NOT OPERATE 43 L AIR CONDITIONER OPERATES BUT ABNORMALITIES OCCUR 44 M TROUBLESHOOTING HEATING MODEL 45 N SAME PARTS OF AIR CONDITIONER DO NOT OPERATE 52 O AIR CONDITIONER OPERATES BUT ABNORMALITIES OCCUR 55 P IS SENSOR IS DEFECTIVE 56 Q CHECKING ELECTRICAL 59 R OPERATING RANGE 21 D ...

Page 3: ...Controls Microprocessor Control unit Remote control Temperature control I C thermostat Timer ON OFF 12 hours Fan speed indoor outdoor 3 auto 2 auto Air filter Washable easy access accessory Compressor Rotary hermetic Refrigerant ref control amount charged at ship g R22 capillary tube 1 710 g Max tubing length m with factory R22 charge 10 Required amount of additional refrigerant g m 25 Max allowab...

Page 4: ...essor Control unit Remote control Temperature control I C thermostat Timer ON OFF 12 hours Fan speed indoor outdoor 3 auto 2 auto Air filter Washable easy access accessory Compressor Rotary hermetic Refrigerant ref control amount charged at ship g R22 capillary tube 1 405 g Max tubing length m with factory R22 charge 10 Required amount of additional refrigerant g m 25 Max allowable tubing length m...

Page 5: ...sor Control unit Remote control Temperature control I C thermostat Timer ON OFF 12 hours Fan speed indoor outdoor 3 auto 2 auto Air filter Washable easy access accessory Compressor Rotary hermetic Refrigerant ref control amount charged at ship g R407C capillary tube 1 710 g Max tubing length m with factory R407C charge 10 Required amount of additional refrigerant g m 25 Max allowable tubing length...

Page 6: ...s Microprocessor Control unit Remote control Temperature control I C thermostat Timer ON OFF 12 hours Fan speed indoor outdoor 3 auto 2 auto Air filter Washable easy access accessory Compressor Rotary hermetic Refrigerant ref control amount charged at ship g R22 capillary tube 1 87 g Max tubing length m standard refrigerant charge 10 Required amount of additional refrigerant g m 25 Max allowable t...

Page 7: ...rols Microprocessor Control unit Remote control Temperature control I C thermostat Timer ON OFF 12 hours Fan speed indoor outdoor 3 auto 2 auto Air filter Washable easy access accessory Compressor Rotary hermetic Refrigerant ref control amount charged at ship g R22 capillary tube 2 450g Max tubing length m standard refrigerant charge 10 Required amount of additional refrigerant g m 25 Max allowabl...

Page 8: ... Microprocessor Control unit Remote control Temperature control I C thermostat Timer ON OFF 12 hours Fan speed indoor outdoor 3 auto 2 auto Air filter Washable easy access accessory Compressor Rotary hermetic Refrigerant ref control amount charged at ship g R407C capillary tube 1 600 g Max tubing length m standard refrigerant charge 10 Required amount of additional refrigerant g m 25 Max allowable...

Page 9: ...ls Microprocessor Number dia length mm 2 Ø 200 L 230 Control circuit fuse 250V 3A Model Number K48410M01526 1 Power source V 220 230 240 1 50 Hz No di poli giri min 230V max 4 1040 Nominal output W 70 Ω WHT BRN 181 1 ORG VLT 136 8 YEL ORG 151 4 BLK YEL 120 6 WHT VLT 112 7 VLT PNK 144 2 Coil resistance Ambient temp 20 C SAFETY DEVICES Internal type Operating temp Model PC Total head capacity 0 4 m ...

Page 10: ... reclosing Operating amp Ambient temp 25 C 5A Run capacitor µF VAC Crank case heater 240V 30W Type Propeller Q ty Dia mm 1 ø400 Fan motor model Q ty SMEN 19 TFB6055 1 Source 220 230 V 50 Hz No of poles rpm 220 V High 6 910 Nominal output W 43 Coil resistance Ambient temp 20 C Ω WHT BRN 77 7 WHT YEL 366 WHT PNK 211 Safety Type Internal type devices Operating temp Open C 130 5 Close Automatic reclos...

Page 11: ...p in 3 to 10 sec at 54A Run capacitor µF 55 0 VAC 450 Crank case heater Type Propeller Number Dia mm 1 ø 400 Fan motor model Number Smen 19TFB6055 1 No of poles rpm 230 V High 6 910 Nominal output W 43 Coil resistance Ambient temp 20 C Ω WHT BRN 77 7 7 WHT YEL 366 0 7 WHT PNK 211 0 7 Safety Type Thermal protector devices Operating temp Open C 130 5 Close Automatic reclosing Run capacitor µF 2 0 VA...

Page 12: ...omatic reclosing Operating amp Ambient temp 25 C 5A Run capacitor µF VAC Crank case heater 240V 30W Type Propeller Q ty Dia mm 1 ø400 Fan motor model Q ty SMEN 19 TFB6047 1 Source 220 230 V 50 Hz No of poles rpm 220 V High 6 910 Nominal output W 43 Coil resistance Ambient temp 20 C Ω WHT BRN 83 4 WHT PNK 218 7 Safety Type Internal type devices Operating temp Open C 130 5 Close Automatic reclosing ...

Page 13: ... sec at 55 A Run capacitor µF 55 0 VAC 450 Crank case heater 240V 30W Type Propeller Number Dia mm 1 ø 400 Fan motor model Number Smen 19TFB6055 1 No of poles rpm 230 V High 6 900 Nominal output W 50 Coil resistance Ambient temp 20 C Ω WHT BRN 77 7 7 WHT YEL 366 0 7 WHT PNK 211 7 Safety Type Internal protector devices Operating temp Open C 130 8 Close Automatic reclosing Run capacitor µF 2 0 VAC 4...

Page 14: ...L Ω Safety devices Type Open C Close µF VAC HEAT EXCH COIL Coil Rows Fin pitch mm Face area m2 EXTERNAL FINISH C R173H8M 806 389 88 5 62 5 51 5 62 Data subject to change without notice Automatic reclosing 2 440 Acrylic baked on enamel finish 380 400 V 3N 50 Hz 220 240 V 50 Hz POW C186GH Rotary Hermetic 380 400 V 3N 50 Hz Propeller Run capacitor Coil resistance Ambient temp 25 C Operating temp 1 Ø4...

Page 15: ...YEL Ω Safety devices Type Open C Close µF VAC HEAT EXCH COIL Coil Rows Fin pitch mm Face area m2 EXTERNAL FINISH C 2RN173H8A 80242088 5 62 5 51 5 62 Data subject to change without notice Automatic reclosing 2 440 Acrylic baked on enamel finish 380 400 V 3N 50 Hz 220 240 V 50 Hz POW C186GH Rotary Hermetic 380 400 V 3N 50 Hz Propeller Run capacitor Coil resistance Ambient temp 25 C Operating temp 1 ...

Page 16: ...oor Unit AE518SC 16 Outdoor Unit AE518SC3 Negative Phase Relay 47C RDR S400 Rating AC 415V 3 phase 50Hz Contact rating AC 400V 1A Operation Positive phase ON Negative phase OFF Electro Magnetic Contactor MG HOE 10TB TH 5A Magnetic contactor Coil rating AC 220 240V 50Hz AC 240 260V 60Hz Coil resistance Ω at 25 C 1 260 10 Contact rating Main AC 440V 8A Thermal relay Overcurrent relay Operating amper...

Page 17: ... 60Hz Coil resistance Ω at 25 C 1 260 10 Contact rating Main AC 440V 8A Thermal relay Overcurrent relay Operating amperes 5A Transformer TR2 ATR J105 I Rating Primary AC 230V 50Hz Secondary 19V 0 526A Capacity 10VA Coil resistance Ω at 22 C Primary WHT WHT 205 10 Secondary BRN BRN 2 0 10 Thermal cut off temp 150 C Thermistor Coil sensor TH3 Air sensor TH4 PBC 41E S4 PBC 41E S8 Resistance kΩ 20 C 4...

Page 18: ...w Starting Relay SR AMVL300A Coil rating AC 300V 50Hz Coil resistance kΩ at 23 C 13 3 2 Contact rating 20A AC Operating voltage AC 185 217V 50Hz Return voltage AC 60 120V 50Hz Power Relay PR DFU24D1 F Coil rating DC 24V Coil resistance Ω at 20 C 650 10 Contact rating AC 250V 20A Outdoor Unit AE518SH 4 way Valve 20S LB64012 Coil V26 110B Valve Coil rating AC 220 240V 50Hz 6W Coil resistance Ω at 20...

Page 19: ...ating AC 220 240V 50Hz 6W Coil resistance Ω at 20 C 1 740 7 Electro Magnetic Contactor MG HOE 10TB TH 5A Magnetic contactor Coil rating AC 220 240V 50Hz AC 240 260V 60Hz Coil resistance Ω at 25 C 1 260 10 Contact rating Main AC 440V 8A Thermal relay Overcurrent relay Operating amperes 5A Thermostat Defrost thermo 23D TRS02 12MSR Operating temp C ON 12 2 Diff 8 deg below 19 Thermostat Fan Speed Con...

Page 20: ...rating AC 220 240V 50Hz 6W Coil resistance Ω at 20 C 1 740 7 Electro Magnetic Contactor MG HOE 10TB TH 5A Magnetic contactor Coil rating AC 220 240V 50Hz AC 240 260V 60Hz Coil resistance Ω at 25 C 1 260 10 Contact rating Main AC 440V 8A Thermal relay Overcurrent relay Operating amperes 5A Thermostat Defrost thermo 23D TRS02 12MSR Operating temp C ON 12 2 Diff 8 deg below 20 Thermostat Fan Speed Co...

Page 21: ...unction Temperature intake temp intake temp Maximum 35 C BS 22 5 C BU 52 C BS Minimum 19 C BS 14 C BU 5 19 C BS Cooling D OPERATING RANGE Referred to the systems ADR518CW AER518SCL3 only 3 phase and low ambient version INDOOR UNIT OUTDOOR UNIT Indoor air Outdoor air Function Temperature intake temp intake temp Cooling ...

Page 22: ...117 50 120 30 145 170 252 30 2 3 1 175 4 ø3 1 HOLE 120 125 120 8 7 6 42 20 60 200 1 2 3 4 5 6 7 8 Dimension mm REMOTE CONTROL UNIT OVERALL DIM OVERALL DIM SUSPENSION BOLT PITCH SUSPENSION BOLT PITCH LEGEND Refrigerant liquid line Narrow tube ø 6 35 Refrigerant gas line Wide tube ø 12 70 Drain connection outside diam 32 Electrical junction box Mounting for suspention Duct connection for discharge ø...

Page 23: ...23 Outdoor Unit Air discharge Air intake 538 146 307 337 4 ø12 holes 830 19 630 305 61 95 Wide tube service valve ø12 7 1 2 Narrow tube service valve ø6 35 1 4 Unit mm ...

Page 24: ... automatic time delay to allow the internal pressure to equalize 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 T 1 C T C is set temperature Compressor ON Thermo OFF When the room temperature in equal to or below set temperature T C Compressor OFF MORE THAN 5 MINUTES THERMO OFF MOR...

Page 25: ...s 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 OFF OFF SET TEMP MORE THAN 5 MINUTES ROOM TEMP THERMO OFF THERMO ON THERMO OFF 5 MINUTES ON ON OFF OFF OFF ON ON OFF OFF OFF LL SET SPEED LL SET SPEED LL 30 SECONDS 30 SECONDS OFF ON OFF ON...

Page 26: ...SOR 1 C T 0 5 C T C ROOM TEMP THERMO OFF THERMO ON SET TEMP MORE THAN 10 MINUTES 3 OVERLOAD PREVENTION HEATING This function prevents overheating of the indoor heat exchange coil For indoor units ADR518HW only When the temperature of the indoor heat exchange coil rises above 59 C 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...

Page 27: ... compressor is longer than 1 5 hours Thermo OFF Compressor OFF Temperature of indoor heat exchanger coil is lower than 53 C Thermo ON Compressor ON Defrosting thermo in the outdoor unit is OFF Below 4 C Defrosting begins Cold draft prevention Release of defrosting Temperature of outdoor heat exchange coil is higher than 12 C Defrosting time is over 11 5 minutes Temperature of indoor heat exchanger...

Page 28: ...REVENTION L L Low low speed 2 SECONDS 6 OUTDOOR FAN SPEED CONTROL COOLING To optimize performance of the air conditioner the outdoor fan speed is switched automatically according to the outdoor temperature If the outdoor air temperature falls below 28 5 C the fan speed switches to LOW If the outdoor air temperature rises above 31 5 C for 5 minutes or longer the fan speed switches to HIGH This func...

Page 29: ... speed varies with indoor temperature conditions Hatching area The unit is protected against high pressure by means of the outside temperature sensor and thus when the outside ambient temperature reaches 30 C respectively the fan speed is forced to high 1000 1000 800 600 400 200 0 10 10 5 0 5 10 10 15 20 25 30 35 ROTATION SPEED OF FAN rpm CONDITIONS ROOM TEMPERATURE 19 4 C DB 13 9 C WB 220V 50 HZ ...

Page 30: ...30 G REFRIGERANT FLOW DIAGRAM COOLING MODE Indoor unit Outdoor unit HEAT PUMP MODE Indoor unit Outdoor unit ...

Page 31: ...ON2 E TP1 1 1 2 2 3 3 4 4 5 5 6 6 8 8 GRY GRY WHT VLT ORG YEL BLK BRN PNK 1 1 7 7 9 9 GRY GRY 2 2 6 6 4 5 5 1 1 3 3 2 2 VLT ORG YEL BLK BRN BRN PNK GRN YEL 1 1 2 2 1 4 12 9 VLT ORG YEL BLK BRN BRN BLK BLK 1 1 2 2 3 4 3 4 1 2 BLK BLK WHT GRN YEL ORG 4 1 1 1 1 2 2 2 2 1 1 2 2 GRN YEL BLK BLK BLK BLK BLK BLK BLU WHT 1 1 2 2 1 1 2 2 1 2 1 1 12 S S 12 1 1 5 5 1 1 2 2 S S BLK BRN RED WHT WHT BLK BLK WHT...

Page 32: ...Outdoor Unit AE518SC WARNING To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts 34 AE518SC3 ...

Page 33: ...Outdoor Unit AER518SCL3 WARNING To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts 33 ...

Page 34: ...Outdoor Unit AE518SH WARNING To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts 34 ...

Page 35: ...Outdoor unit AE518SH3 To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING 35 ...

Page 36: ...Outdoor unit AER518SH3 To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING 36 ...

Page 37: ... inter unit wiring both the power wiring and control wiring is correctly connected to the indoor unit from the outdoor unit c Check power supply Check that voltage is in specified range 10 of the rating Check that power is being supplied OUTDOOR INDOOR UNIT UNIT INTER UNIT WIRING POWER SUPPLY GROUND ADR518CW AE518SC POWER SUPPLY GROUND ADR518CW AER AE518SCL3 L1 L2 L3 N L1 L2 L3 N 400V 400V 230VV 4...

Page 38: ...ower is not supplied Check drain pump and drain hose Function of compressor winding protection works Indoor unit sensor are defective Open or short circuit Limit float switch has operated OPEN Check power supply Neither indoor unit nor outdoor unit runs Measure insulation resistance of power supply wires Check capacity of circuit breaker Meaure resi stance of electrical com ponents Reposition the ...

Page 39: ...4 Ground Power sypply Inter unit wiring a b c d Set circuit breaker to OFF Unità esterna L1 L2 L3 N 5 6 7 8 z z ADR518CW AE518SC ADR518CW AER AE518SCL3 Remove power supply wires from terminal plate in outdoor unit Measure insulation resistance of power supply wires Do rewiring Do rewiring Remove inter unit wires from terminal plate in outdoor unit Measure insulation resistance of outdoor unit Insu...

Page 40: ...istance of magnetic contactor MG or 52C OK NO YES OK Measure resistance of compressor motor winding Measure resistance of outdoor fan motor winding Check capacity of circuit breaker Capacity of circuit breaker is suita ble NO Check is drain flow prevented YES Check if the drain pump is working Measure resistance of drain pump motor winding Replace drain pump Check function of limit float switch Fl...

Page 41: ...asure resistance of primary and secondary winding TR f Check indoor fan motor protector Wait for 30 minutes and then try to run Indoor fan motor internal protector trips Air conditioner starts running Air conditioner does not run again Check fan rotation Turn fan gently once or twice by hand Remove foreign matter or repair Check fan casing for foreign matter on inside Fan motor burnout or foreign ...

Page 42: ...d NO NO YES Refrigerant gas shortage Check power supply voltage Is voltage abnormally low Is outdoor heat exchanger coil dirty or are there obstacles near air suction inlet of outdoor unit Check overload relay and or compressor motor internal pro tector OLR 49C Measure resistance of compres sor motor winding Is temperature of compressor abnormally high Check compressor motor capaci tor C1 YES Rewi...

Page 43: ...oil dirty or are there obstacles near air suc tion inlet Check compressor motor over current relay 51C Check power supply voltage Is voltage abnormally low Check compressor There is a possibility of locked rotor Is temperature of compressor abnormally high Refrigerant gas shortage Charge refrigerant gas YES YES NO It s operated NO 90 or more of rated voltage ...

Page 44: ...CONDITIONER DO NOT OPERATE Fan turn normal Repair or repla ce Fan motor burnout or foreign matter in bea ring OK Measure the resistance of outdoor fan motor winding Check fan motor capacitor Fan cannot be turned Check fan rotation Turn fan gently once or twice by hand 3 ONLY OUTDOOR FAN DOES NOT RUN Check fan casing for foreign matter on inside Remove foreign matter or repair Defrost controller PO...

Page 45: ...d outdoor units are not insulated Air filter is clogged Measure temperatures of suction and discharge air of air conditioner Refrigerant gas shortage Possibility of gas shortage Charge refrige rant gas R22 Clean filter Check for clogging of air filter Use the booster cable Long extension of ducts Refrigerant flow failure Air circula tion is a little a M AIR CONDITIONER OPERATES BUT ABNORMALITIES O...

Page 46: ... S H No 1 2 on the terminal plate in the outdoor unit ADR518HW AE AER518SH3 No 8 9 10 and 11 on terminal plate in the outdoor unit b Check inter unit wiring Check that inter unit wiring both the power wiring and control wiring is correctly connected to the indoor unit from the outdoor unit ADR518HW AE518SH OUTDOOR INDOOR UNIT UNIT a b c d e f g INTER UNIT CONTROL WIRING a b c d e f g POWER SUPPLY ...

Page 47: ...er is being supplied d 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 connected firmly Check that wiring is correct L1 L2 L3 N 400V 400V 230V 400V L N 220V Single phase systems Three phase systems ...

Page 48: ... Power is not supplied Check drain pump and drain hose Function of compressor winding protection works Indoor unit sensor are defective Open or short circuit Limit float switch has operated OPEN Check power supply Neither indoor unit nor outdoor unit runs Measure insulation resistance of power supply wires Check capacity of circuit breaker Meaure resistance of electrical components Reposition the ...

Page 49: ...n is defective Circuit breaker Outdoor unit 1 2 3 4 5 6 7 Unità esterna x x 3 4 5 6 7 8 Unità esterna x x x x x x x x x x x x Indoor unit 1 2 3 4 5 6 7 Ground Power supply Inter unit control wiring a b c d ADR518HW AE518SH z Inter unit power wiring Outdoor unit 1 2 3 4 5 6 7 8 9 10 11 12 Unitx x x x Unità esterna x x x x x x x x x x x x Ground a b c d ADR518CW AE AER518SH3 z L1 L2 L3 N Unità ester...

Page 50: ...t Measure insulation resistance of outdoor unit Insulation of outdoor unit is defective Measure insulation resistance of electrical parts in outdoor unit Measure insulation resistance of electrical parts in indoor unit Insulation of indoor unit is defective Remove inter unit wires from terminal plate in intdoor unit Measure insulation resistance of intdoor unit Measure insulation resistance of int...

Page 51: ...ure resistance of 4 way valve s winding 20S or SC OK NO YES OK Measure resistance of outdoor fan motor winding Measure resistance of indoor fan motor winding Check capacity of circuit breaker Capacity of circuit breaker is suitable NO Check is drain flow prevented YES Check if the drain pump is working Measure resistance of drain pump motor winding Replace drain pump Check function of limit float ...

Page 52: ...stance of primary and secondary winding f Check indoor fan motor protector Wait for 30 minutes and then try to run Indoor fan motor internal protector trips Air conditioner starts running Air conditioner does not run again Check fan rotation Turn fan gently once or twice by hand Remove foreign matter or repair Check fan casing for foreign matter on inside Fan motor burnout or foreign matter in bea...

Page 53: ...T RUN Check fan casing for foreign matter on inside Remove foreign matter or repair O SOME PARTS OF AIR CONDITIONER DO NOT OPERATE Fan turn normal Repair or repla ce Fan motor burnout or foreign matter in bearing OK Measure the resistance of outdoor fan motor winding Check fan motor capacitor Fan cannot be turned Check fan rotation Turn fan gently once or twice by hand 2 ONLY OUTDOOR FAN DOES NOT ...

Page 54: ...r OLR or 49C Replace compressor Charge refrigerant gas R22 Check compressor motor capacitor Either C1 or BC Check power supply voltage Voltage is abnormally low Check compressor There is a possibility of locked rotor Measure resistance of compressor motor winding Outdoor unit SAP C188EH5 Measure coil resistance of starting relay SR and power relay PR Contact power utility company to have power vol...

Page 55: ... Check power supply voltage Voltage is abnormally low Contact power utility company to have power voltage restored to normal Check compressor There is a possibility of locked rotor NO 90 or more of rated voltage YES YES YES O K NO Check compressor motor internal protector 49C Temperature of compressor is abnormally high Refrigerant gas shortage Compressor is defective YES NO Charge refrigerant gas...

Page 56: ...e temperatures of suction and discharge air of air conditioner Refrigerant gas shortage Possibility of gas shortage Charge refrigerant gas R22 or 407c Clean filter Check for clogging of air filter Use the booster cable Long extension of ducts Refrigerant flow failure Replace Indoor coil sensor is defective Air circulation is a little Replace 4 way valve is defective Cold air is discharged Replace ...

Page 57: ...ir conditioner will be in the following conditions as the controller tries to detect extremely low room temperature IN COOLING MODE The air conditioner soon stops and will not start again Thermo OFF Neither outdoor fan nor compressor runs Short When thermistor is short the air conditioner will be in the following conditions as the controller tries to detect extremely high room temperature IN COOLI...

Page 58: ...lead clip of the insulation resistance tester and measure the resistance by placing a probe on and then on the terminal plate Fig 2 c Outdoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on and then on the terminal plate Fig 2 d Measurement of Insulation Resistance for Electrical Parts Disconnect the lea...

Page 59: ...d wiers from the capacitor termi nals and then place a probe on the capacitor ter minals 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 origi nal position The range of deflection and deflection time deffer according ...

Page 60: ...Printed in italy Via Varese 90 21013 Gallarate Va Italy Tel 39 0331 755111 Fax 39 0331 776240 www argoclima it ...

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