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Euro-Line AER518SH3 Technical Data & Service Manual Download Page 64

9-1-4. Check power supply wiring.

●

Check that power supply wires are correctly connected

to terminals L1, L2 , L3 and N on the terminal plate in

the outdoor unit.

1

Indoor

unit

Outdoor

unit

Inter-unit
control wiring

Ground

Power supply:
380 V – 400 V
3N ~ 50 Hz

L1

L2

L3

N

7

2

4

5

L1

L2

L3

N

6

7

6

Inter-unit
power wiring

Ground

1

2

4

5

380V – (400V)

380V – (400V)

380V – (400V)

L1

L2

L3

N

220V – (230V)

62

Summary of Contents for AER518SH3

Page 1: ...TECHNICAL DATA SERVICE MANUAL Indoor Unit Outdoor Unit AWR518 522HL AER518SH3 FCR518 522HL AER522SH3 SPLIT SYSTEM AIR CONDITIONER AER518SH3 AER522SH3 AWR518 522HL FCR518 522HL 0 8180 144 0 02 2001 ...

Page 2: ...WARNING 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 st...

Page 3: ... between Cooling and Heating 47 7 4 Freeze prevention 47 7 5 Overload prevention 48 7 6 Cold draft prevention 49 7 7 Defrosting operation 50 7 8 Outdoor Fan Speed Control 51 8 REFRIGERANT R407C SPECIAL PRECAUTION WHEN SERVICING UNIT 8 1 Characteristics of new refrigerant R407c 52 8 2 Checklist before servicing 52 8 3 Tools specifically for R407c 53 8 4 For tubing installation procedures 53 8 5 In ...

Page 4: ...ANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Maximum 32 C D B 23 C W B 43 C D B Minimum 19 C D B 14 C W B 19 C D B Heating Maximum 27 C D B 24 C D B 18 C W B Minimum 16 C D B 8 C D B 9 C W B ...

Page 5: ...ours Daily Program Fan speeds Indoor Outdoor 3 and Auto Auto Hi Lo Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R407c 1600 Refrigerant control Capillary tube Operation sound Indoor Hi Me Lo dB A 48 44 39 Outdoor Hi dB A 51 Refrigerant tubing connections Flare type Max allowable tubing leng...

Page 6: ...y Program Fan speeds Indoor Outdoor 3 and Auto Auto Hi Lo Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R407c 2400 Refrigerant control Capillary tube Operation sound Indoor Hi Me Lo dB A 50 47 44 Outdoor Hi dB A 55 Refrigerant tubing connections Flare type Max allowable tubing length at shi...

Page 7: ...ess remote control unit Timer ON OFF 24 hours Daily program 1 hour OFF Fan speeds Indoor Outdoor 3 and Auto Auto Hi Lo Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R407c 1600 Refrigerant control Capillary tube Noise power level Indoor Hi Me Lo dB A 55 51 49 Outdoor Hi dB A 65 Refrigerant tubing conn...

Page 8: ...s remote control unit Timer ON OFF 24 hours Daily program 1 hour OFF Fan speeds Indoor Outdoor 3 and Auto Auto Hi Lo Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Compressor Rotary Hermetic Refrigerant Amount charged at shipment g R407c Refrigerant control Capillary tube Noise power level Indoor Hi Me Lo dB A 58 55 52 Outdoor Hi dB A 68 Refrigerant tubing connections...

Page 9: ...94 223 WHT VLT 80 1 92 2 VLT ORG 80 1 92 2 ORG YEL 200 230 WHT PNK 238 274 Safety Type Internal protector devices Operating temp Open C 145 5 Close Automatic reclosing Run capacitor µF 2 0 VAC 440 Model M2LJ24ZE31 Rating AC 208 230 V 50 60 Hz No of poles rpm 8 2 5 3 0 Nominal output W 3 2 5 Coil resistance Ambient temp 20 C kΩ 16 45 15 Coil Aluminum plate fin Copper tube Rows 2 Fin pitch mm 1 8 Fa...

Page 10: ...ient temp 20 C Ω GRY WHT 124 144 WHT VLT 69 3 79 8 VLT ORG 69 3 79 8 ORG YEL 200 233 WHT PNK 255 294 Safety Type Internal protector devices Operating temp Open C 145 5 Close Automatic reclosing Run capacitor µF 2 0 VAC 440 Model M2LJ24ZE31 Rating AC 208 230 V 50 60 Hz No of poles rpm 8 2 5 3 0 Nominal output W 3 2 5 Coil resistance Ambient temp 20 C kΩ 16 45 15 Coil Aluminum plate fin Copper tube ...

Page 11: ...Nominal output W 30 Coil resistance Ambient temp 20 C Ω WHT BRN 130 4 WHT PNK 169 8 Safety Type Thermal protector devices Operating temp Open C 130 8 Close Automatic reclosing Run capacitor µF 2 0 VAC 440 Type Stepping motor Model MP24GA2 Rating DC 12 V Coil resistance Ambient temp 20 C Ω Each terminals 1 2 1 3 1 4 1 5 400 7 Coil Aluminum plate fin Copper tube Rows 2 Fin pitch mm 1 3 Face area m2 ...

Page 12: ...minal output W 30 Coil resistance Ambient temp 20 C Ω WHT BRN 130 4 WHT PNK 169 8 Safety Type Thermal protector devices Operating temp Open C 130 8 Close Automatic reclosing Run capacitor µF 2 0 VAC 440 Type Stepping motor Model MP24GA2 Rating DC 12 V Coil resistance Ambient temp 20 C Ω Each terminals 1 2 1 3 1 4 1 5 400 7 Coil Aluminum plate fin Copper tube Rows 2 Fin pitch mm 1 3 Face area m2 0 ...

Page 13: ...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 14: ... Ω WHT YEL Ω Safety devices Type Open C Close µF VAC HEAT EXCH COIL Coil Rows Fin pitch mm Face area m2 EXTERNAL FINISH Acrylic baked on enamel finish Data subject to change without notice 380 400 V 3N 50 Hz 220 240 V 50 Hz POW C226GH Rotary Hermetic 380 400 V 3N 50 Hz Run capacitor 240 V 30 W Propeller Internal protector 130 8 Operating temp Automatic reclosing 1 Ø460 Smen 19TFB6064 1 220 240 V 5...

Page 15: ... 6 3 4 40 C 2 7 4 25 C 5 0 4 50 C 1 8 4 Thermistor Coil sensor TH1 PBC 41E S14 Resistance kΩ 20 C 40 1 5 20 C 6 5 5 10 C 24 4 5 30 C 4 4 5 0 C 15 3 5 40 C 3 0 5 10 C 9 9 5 50 C 2 1 5 Transformer TR ATR J105 Rating Primary AC 230V 50Hz Secondary 19V 0 526A Capacity 10VA Coil resistance Ω at 21 C Primary WHT WHT 205 10 Secondary BRN BRN 2 0 10 Thermal cut off temp 150 C ...

Page 16: ...stor Coil sensor DTN TKS131B Resistance kΩ 0 C 15 0 2 Transformer TR ATR J105 Rating Primary AC 230V 50Hz Secondary 19V 0 526A Capacity 10VA Coil resistance Ω at 21 C Primary WHT WHT 205 10 Secondary BRN BRN 2 0 10 Thermal cut off temp 150 C Indoor Unit AWR518HL AWR522HL ...

Page 17: ...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 14 Thermostat Fan Speed Co...

Page 18: ...7C RDR S400 Rating AC 415V 3 phase 50Hz Contact rating AC 400V 1A Operation Positive phase ON Negative phase OFF 4 way Valve 20S LB64012 Coil V26 110D Valve Coil rating AC 220 240V 50Hz 6W Coil resistance Ω at 20 C 1 740 7 Thermostat Defrost thermo 23D TRS02 12MSR316 Operating temp C ON 12 2 Diff 8 deg below Thermostat Fan Speed Control 23S YTB S383 Switching temp C high LOW 28 5 C 1 low HIGH 31 C...

Page 19: ... FCR518HL FCR522HL Remote control unit 86 74 74 Center of tubing hole ø75 4 places Wide tube ø12 7 1 2 Narrow tube ø6 35 1 4 Drain hose ø26 74 74 61 18 5 900 86 41 41 190 680 Wide tube ø15 88 5 8 FCR518 FCR522 172 5 Dimensions mm 16 ...

Page 20: ... AWR518HL 285 45 995 45 147 5 147 5 206 3 Remote control unit Center of tubing hole 2 places Narrow tube ø6 35 1 4 Drain hose ø18 Wide tube ø12 7 1 2 AWR518 Wide tube ø15 88 5 8 AWR522 61 18 5 172 5 Unit mm AWR522HL ...

Page 21: ...18 Outdoor Unit AER518SH3 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 22: ...tdoor Unit AER522SH3 Wide tube service valve ø15 88 5 8 Narrow tube service valve ø6 35 1 4 86 88 155 57 73 86 229 285 835 620 130 100 20 20 325 850 250 250 560 6 ø3 1 holes Air intake Air discharge Unit mm ...

Page 23: ...4 REFRIGERANT FLOW DIAGRAM Indoor Unit AWR518HL FCR518HL Outdoor Unit AER518SH3 20 ...

Page 24: ...Indoor Unit AWR522HL FCR522HL Outdoor Unit AER522SH3 21 ...

Page 25: ... and wet 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 never try to bend it into a narrow curve because it can cause the tube to break or crack IMPORTANT CAUTION Wide tube Thickness Min 8 mm Insulation Narrow tube Thickness Min 8 mm ...

Page 26: ...nce m Room air temp 27 C Fan speed High Axis air verocity Flap angle 60 45 Floor mounted Cooling 0 1 2 3 4 5 6 7 3 2 1 0 Horizontal distance m Axis air verocity m s Vertical distance m Room air temp 20 C Fan speed High Axis air verocity Flap angle Heating 0 20 5 1 AIR THROW DISTANCE CHART 5 PERFORMANCE DATA ...

Page 27: ...ng 0 1 2 3 4 5 6 7 1 0 2 3 Horizontal distance m Axis air verocity m s Vertical distance m Axis air verocity Flap angle 45 30 Ceiling mounted 0 1 2 3 4 5 6 7 1 0 2 3 Horizontal distance m Axis air verocity m s Vertical distance m Axis air verocity Flap angle 60 80 Indoor Unit FCR518HL ...

Page 28: ...ocity m s Vertical distance m Room air temp 27 C Fan speed High Axis air verocity Flap angle 60 45 Floor mounted Cooling 0 1 2 3 4 5 6 7 3 2 1 0 Horizontal distance m Axis air verocity m s Vertical distance m Room air temp 20 C Fan speed High Axis air verocity Flap angle Heating 0 20 ...

Page 29: ...ng 0 1 2 3 4 5 6 7 1 0 2 3 Horizontal distance m Axis air verocity m s Vertical distance m Axis air verocity Flap angle 45 30 Ceiling mounted 0 1 2 3 4 5 6 7 1 0 2 3 Horizontal distance m Axis air verocity m s Vertical distance m Axis air verocity Flap angle 60 80 Indoor Unit FCR522HL ...

Page 30: ... distance m Axis air velocity m s Vertical distance m Room air temp 27 C Fan speed High Cooling 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity 30 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 45 Axis air velocity 45 Flap angle 60 Axis air velocity 60 27 Indoor Unit AWR518HL ...

Page 31: ... distance m Axis air velocity m s Vertical distance m Room air temp 27 C Fan speed High Cooling 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity 30 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 45 Axis air velocity 45 Flap angle 60 Axis air velocity 60 28 Indoor Unit AWR522HL ...

Page 32: ...ing mode Refer to 5 5 Overload prevention Points of Rating condition Black dots in above charts indicate the following rating conditions Cooling Indoor air temperature 27 C DB 19 C WB Heating Indoor air temperature 20 C DB Outdoor air temperature 35 C DB 24 C WB Outdoor air temperature 7 C DB 6 C WB NOTE Indoor Unit FCR518HL Outdoor Unit AER518SH3 22 5 2 Performance Charts ...

Page 33: ... high in heating mode Refer to 5 5 Overload prevention Points of Rating condition Black dots in above charts indicate the following rating conditions Cooling Indoor air temperature 27 C DB 19 C WB Heating Indoor air temperature 20 C DB Outdoor air temperature 35 C DB 24 C WB Outdoor air temperature 7 C DB 6 C WB NOTE Indoor Unit FCR522HL Outdoor Unit AER522SH3 ...

Page 34: ...36 2 56 21 SHC 2 29 2 21 2 11 1 98 1 84 23 SHC 2 69 2 62 2 51 2 39 2 24 19 25 SHC 3 08 3 02 2 91 2 80 2 64 27 SHC 3 47 3 42 3 32 3 19 3 05 29 SHC 3 86 3 82 3 71 3 60 3 44 31 SHC 4 27 4 23 4 12 4 00 3 85 TC 5 53 5 34 5 09 4 78 4 40 CM 1 94 2 06 2 22 2 43 2 64 23 SHC 2 26 2 18 2 08 1 95 1 81 21 25 SHC 2 64 2 58 2 48 2 36 2 21 27 SHC 3 04 2 98 2 88 2 77 2 61 29 SHC 3 43 3 38 3 29 3 16 3 02 31 SHC 3 8...

Page 35: ... 4 47 4 25 31 SHC 5 17 5 02 4 85 4 63 TC 6 41 6 10 5 73 5 28 CM 2 29 2 45 2 70 3 05 21 SHC 2 86 2 71 2 53 2 32 19 23 SHC 3 24 3 09 2 91 2 70 25 SHC 3 62 3 47 3 29 3 08 27 SHC 4 00 3 85 3 67 3 46 29 SHC 4 38 4 23 4 05 3 84 31 SHC 4 76 4 61 4 43 4 22 TC 6 79 6 47 6 08 5 59 CM 2 35 2 52 2 78 3 13 23 SHC 2 81 2 66 2 49 2 28 21 25 SHC 3 19 3 04 2 87 2 66 27 SHC 3 57 3 42 3 25 3 04 29 SHC 3 95 3 80 3 63...

Page 36: ...2 01 2 15 2 36 2 56 21 SHC 2 29 2 21 2 11 1 98 1 84 23 SHC 2 69 2 62 2 51 2 39 2 24 19 25 SHC 3 08 3 02 2 91 2 80 2 64 27 SHC 3 47 3 42 3 32 3 19 3 05 29 SHC 3 86 3 82 3 71 3 60 3 44 31 SHC 4 27 4 23 4 12 4 00 3 85 TC 5 53 5 34 5 09 4 78 4 40 CM 1 94 2 06 2 22 2 43 2 64 23 SHC 2 26 2 18 2 08 1 95 1 81 21 25 SHC 2 64 2 58 2 48 2 36 2 21 27 SHC 3 04 2 98 2 88 2 77 2 61 29 SHC 3 43 3 38 3 29 3 16 3 0...

Page 37: ...29 3269 82 21 SHC 2713 70 2626 96 2503 04 2354 35 2180 87 23 SHC 3190 76 3110 22 2986 30 2837 61 2664 13 19 25 SHC 3655 43 3581 09 3457 17 3320 87 3135 00 27 SHC 4126 30 4064 35 3940 43 3791 74 3618 26 29 SHC 4584 78 4535 22 4411 30 4275 00 4089 13 31 SHC 5068 04 5018 48 4894 57 4745 87 4572 39 TC 6567 39 6344 35 6046 96 5675 22 5229 13 CM 2481 71 2632 62 2833 84 3102 13 3370 43 23 SHC 2679 50 258...

Page 38: ... rating condition Indoor 20 C D B Outdoor 7 C D B 6 C W B 2 Above characteristics indicate instantaneous operation which does not take into account defrost operation 3 Fan speed High 4 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 obtaine...

Page 39: ...ture 27 C D B 19 C W B Outdoor Air Temperature 35 C D B Full Load Conditions Indoor Air Temperature 32 C D B 23 C W B Outdoor Air Temperature 43 C D B HEATING Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230V 50Hz 400V 3N 50Hz Rating Conditions Running Amps A 0 38 0 50 3 32 4 2 Power Input kW 0 072 0 093 2 107 2 25 Full Load Conditions Running Amps A 0 38 0 ...

Page 40: ...utdoor Air Temperature 35 C D B Full Load Conditions Indoor Air Temperature 32 C D B 23 C W B Outdoor Air Temperature 43 C D B HEATING Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230V 50Hz 400 3N 50Hz Rating Conditions Running Amps A 0 40 0 55 4 05 5 0 Power Input kW 0 078 0 120 2 802 3 000 Full Load Conditions Running Amps A 0 40 0 55 4 65 5 6 Power Input ...

Page 41: ...WB Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 50Hz Rating Conditions Running Amps A 0 33 0 40 3 47 4 2 Power Input kW 0 071 0 082 2 097 2 25 Full Load Conditions Running Amps A 0 33 0 40 3 42 4 21 Power Input kW 0 071 0 082 2 297 2 45 Cooling Heating Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 50Hz Ratin...

Page 42: ...or Air Temperature 32 C DB 23 C WB Outdoor Air Temperature 43 C DB Rating Conditions Indoor Air Temperature 20 C DB Outdoor Air Temperature 7 C DB 6 C WB Full Load Conditions Indoor Air Temperature 27 C DB Outdoor Air Temperature 24 C DB 18 C WB Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 V 50Hz Rating Conditions Running Amps A 0 40 0 54 Power Input kW ...

Page 43: ...Indoor Unit AWR518HL 6 2 Electric Wiring Diagrams AWR522HL WARNING To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts 40 ...

Page 44: ...Indoor unit FCR518HL To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING 41 FCRG FCR522HL ...

Page 45: ...Outdoor unit AER518SH3 To avoid electrical shock hazard be sure to disconnect power before checking servicing and or cleaning any electrical parts WARNING 42 ...

Page 46: ...Outdoor unit AER522SH3 43 ...

Page 47: ...rigerant pressure the control circuit has a built in 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 is equal to or below set temperature T...

Page 48: ...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 OFF 1 Refer to 5 6 Cold Draft Prevention 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 3 minutes 5 minut...

Page 49: ...d outdoor units stop Room temp 15 C Dry A1 zone Compressor FMI indoor fan Intermittent operation ON for 5 minutes and OFF for 5 minutes L low speed LL very low speed intermittent ventilation only while the compressor is ON Dry B zone Compressor FMI indoor fan Intermittent operation ON for 3 minutes and OFF for 9 minutes L low speed LL very low speed intermittent ventilation only while the compress...

Page 50: ... lower than the set temperature HEATING operation begins 7 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 compressor for at least 6 minutes The compressor does not start again until the temperatu...

Page 51: ...ature 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 of the indoor heat exchange coil rises above 61 C the outdoor fan stops ON ON OFF ON H or M or L H H M M L M 61 59 52 49 Indoor heat exch coil temp C Outdoor fan Indoor fan Compressor ...

Page 52: ...t exchange coil have sufficiently warmed up STANDBY lamp 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 OFF ON OFF Set speed Indoor fan Standby lamp Indoor heat exch coil temp C 36 Max 10minutes ...

Page 53: ...C Integrated operating time of compressor is more than 1 5 hours Thermo OFF Compressor OFF C D Temperature of indoor heat exchanger coil is below 45 C Continuous operating time of compressor is more than 20 minutes Outdoor fan is either operated or stopped for more than 10 minutes A Is outdoor fan continuously operating for more than 10 minutes Integrated operating time of compressor is more than ...

Page 54: ...N ON ON ON ON ON Set speed OFF OFF OFF OFF 32 seconds 11 minutes 32 seconds Start of defrosting g OFF OFF Release of cold draft prevention Compressor Outdoor fan Solenoid coil 4 way valve Indoor fan Standby lamp Indoor heat exch coil temp 36 C ON ON 1 Set speed 1 2 seconds 2 seconds ...

Page 55: ...e outdoor air temperature falls below B C the fan speed switches to LOW If the outdoor air temperature rises above A C the fan speed switches to HIGH This function does not become active in heating operation The operating temperature shown as A and B in the chart differ by models H H L A B Outdoor air temperature C Outdoor fan speed NOTE Models A B AER518SH3 27 0 C 23 5 C AER522SH3 31 0 C 28 5 C ...

Page 56: ...position 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 different from the mineral oil used for R22 Thus more att...

Page 57: ...stallation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 54 Tool Distinction Tool Name Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Tools specifically for R407C Refrigerant recovery unit Vacuum pump with anti reverse flow 1 Solenoid valve installed type which prevents oil from flowing back into the unit when the p...

Page 58: ... quickly 3 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 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 The equipment may be damaged if ...

Page 59: ...if the volume of refrigerant in the cylinder becomes less than 20 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 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 re...

Page 60: ...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 ai...

Page 61: ...ging 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 For the remaining refrigerant refer to the instructions of the refrigerant manufacturer If using a charging cylinder transfer the specified amount of liquid refrigerant from the refrigerant cylinde...

Page 62: ...ons given in 10 6 In case refrigerant is leaking and completely carry out repairs Only then should you recharge the refrigerant 8 8 Retro fitting existing systems 8 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 8 8 2 Use of existing tubing If replacing an o...

Page 63: ...d range 10 of the rating Check that power is being supplied 9 1 3 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 WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH Disconnect power or turn off circuit breaker before you start checking or se...

Page 64: ... terminals L1 L2 L3 and N on the terminal plate in the outdoor unit 1 Indoor unit Outdoor unit Inter unit control wiring Ground Power supply 380 V 400 V 3N 50 Hz L1 L2 L3 N 7 2 4 5 L1 L2 L3 N 6 7 6 Inter unit power wiring Ground 1 2 4 5 380V 400V 380V 400V 380V 400V L1 L2 L3 N 220V 230V 62 ...

Page 65: ...ive NO Measure insulation resistance of electrical parts in outdoor unit NO NO Set circuit breaker to OFF Measure insulation resistance of electrical parts in indoor unit 1 Remove both power supply wires and inter unit wires from terminal plate in outdoor unit Measure insulation resistance of outdoor unit 2 Remove inter unit wires from terminal plate in indoor unit Measure insulation resistance of...

Page 66: ...it breaker is suitable Measure resistance of outdoor fan motor winding Measure resistance of compressor motor winding Measure coil resistance of magnetic contactor MG Measure resistance of 4 way valve s winding In case of Heating operation NO Check power supply Power is being supplied to the outdoor unit Circuit breaker is tripped Power failure Reset breaker Wait for recovery or contact power comp...

Page 67: ...ing FMI FMO Measure resistance of flap motor winding FLP OK Measure resistance of either power relay or magnetic contactor PR or MG Replace the fuse If fuse has been blown OK Try to run with another remote control unit 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 C...

Page 68: ...Remote control unit is defective Try to run using another remote control unit COOL OK NO Is room temperature too high Try to raise setting temperature by temperature setting button warmer Outdoor unit still does not run Remote control unit is defective Try to run using another remote control unit HEAT Indoor PCB Ass y is defective Check voltage between terminals No 4 and No 5 at terminal plate DC ...

Page 69: ...or NO 90 or more of rated voltage YES YES YES YES Rewire power supply wires MG Check compressor motor internal protector 49C Check thermal relay 51C to see if it has operated Check power supply voltage Voltage is abnormally low Temperature of compressor is abnormally high Check relay PR Refrigerant gas shortage Charge refrigerant gas NO Compressor is defective 9 2 4 Only indoor unit does not run I...

Page 70: ...t be turned OK Check fan rotation Turn fan gently once or twice by hand Check fan casing foreign matter on inside Fan motor burnout or foreign matter in bearings Remove foreign matter or repair Repair or replace Measure resistance of indoor fan motor winding Check fan motor capacitor Measure resistance of flap motor winding Check thermostat in outdoor unit 23S Refer to 5 8 Outdoor Fan Speed Contro...

Page 71: ...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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