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Euro-Line ADR522CW Technical & Service Manual

Split system air conditioner
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TECHNICAL & SERVICE MANUAL
ADR522CW
AE522SC
AE522SC3 / AER522SCL3
ADR522HW
AE522HS
AE522HS3 / AER522HS3
SPLIT SYSTEM AIR CONDITIONER
INDOOR UNIT
OUTDOOR UNIT
0.8180.225.0
OCTOBER 01

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Summary of Contents for Euro-Line ADR522CW

  • Page 1 TECHNICAL & SERVICE MANUAL ADR522CW AE522SC AE522SC3 / AER522SCL3 ADR522HW AE522HS AE522HS3 / AER522HS3 SPLIT SYSTEM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT 0.8180.225.0 OCTOBER 01...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS OPERATIONS.........................PAGE..1 SPECIFICATIONS..........................9 MAJOR COMPONENT SPECIFICATIONS.................15 OTHERS COMPONENTE SPECIFICATIONS................15 DIMENSIONALE DATA.........................21 FUNCTION.............................23 REFRIGERANT FLOW DIAGRAM....................29 ELECTRIC WIRING DIAGRAM.....................31 TROUBLESHOOTING HEATING MODEL..................34 SAME PARTS OF AIR CONDITIONER DO NOT OPERATE............41 AIR CONDITIONER OPERATES,BUT ABNORMALITIES OCCUR..........44 TROUBLESHOOTING COOLING MODEL..................45 SAME PARTS OF AIR CONDITIONER DO NOT OPERATE............52 AIR CONDITIONER OPERATES,BUT ABNORMALITIES OCCUR..........53 CHECKING ELECTRICAL COMPONENTS.................56...

  • Page 3: Operating Range

    24°C DB / 18°C WB Heating Minimum – DB / – WB,5 –8°C DB / –9°C WB Referred to the systems - ADR522CW - AER522SCL3 only (3 phase and low ambient version) INDOOR UNIT OUTDOOR UNIT Indoor air Outdoor air Function Temperature intake temp.

  • Page 4: Operations

    SPECIFICATIONS 1) UNIT SPECIFICATIONS INDOOR UNIT ADR522CW UNIT MODEL OUTDOOR UNIT AE522SC Power source 220 / 230 / 240V - 1 - 50 Hz PERFORMANCES COOLING BTU/h 21.500 Capacity W (Kcal/h) 6.300 (5.418) Air circulation (high - med - low) 1200 External static pressure (high speed) mm w.g.
  • Page 5 1) UNIT SPECIFICATIONS INDOOR UNIT ADR522CW UNIT MODEL OUTDOOR UNIT AE522SC3 Power source 400V - 3N - 50 Hz (4 wires) PERFORMANCES COOLING BTU/h 20.400 Capacity W (Kcal/h) 6.000 (5.160) Air circulation (high - med - low) 1200 External static pressure (high speed) mm w.g. (Pa)
  • Page 6 1) UNIT SPECIFICATIONS INDOOR UNIT ADR522CW UNIT MODEL OUTDOOR UNIT AER522SCL3 Power source 400V - 3N - 50 Hz (4 wires) PERFORMANCES COOLING BTU/h 21.000 Capacity W (Kcal/h) 6.150 (5,335) Air circulation (high - med - low) 1200 External static pressure (high speed) mm w.g. (Pa)
  • Page 7 1) UNIT SPECIFICATIONS INDOOR UNIT ADR522HW UNIT MODEL OUTDOOR UNIT AE522SH Power source 220 / 230 / 240V - 1 - 50 Hz PERFORMANCES COOLING HEATING BTU/h 20.800 25400 Capacity W (Kcal/h) 6.100 (5246) 7.450 (6.407) Air circulation (high - med - low) 1200 External static pressure (high speed) mm w.g.
  • Page 8 1) UNIT SPECIFICATIONS INDOOR UNIT ADR522HW UNIT MODEL OUTDOOR UNIT AE522SH3 Power source 400V - 3N - 50 Hz (4 wires) PERFORMANCES COOLING HEATING BTU/h 20.000 25.000 Capacity W (Kcal/h) 5.800 (4.988) 7.300 (6.278) Air circulation (high - med - low) 1200 External static pressure (high speed) mm w.g.
  • Page 9 1) UNIT SPECIFICATIONS INDOOR UNIT ADR522HW UNIT MODEL OUTDOOR UNIT AER522SH3 Power source 400V - 3N - 50 Hz (4 wires) PERFORMANCES COOLING HEATING BTU/h 19.500 26.000 Capacity W (Kcal/h) 5.700 (4.902) 7.400 (6.364) Air circulation (high - med - low) 1200 External static pressure (high speed) mm w.g.

  • Page 10: Cmajor Component Specifications

    MAJOR COMPONENT SPECIFICATIONS d) INDOOR UNIT UNIT MODEL ADR522CW/ADR522HW Power source 220 / 230 / 240V -1 - 50 Hz REMOTE CONTROL UNIT RCS-U186QH CONTROLLER P.C.B. POW-U226QH Controls Microprocessor Control circuit fuse 250V - 3A Centrifugal Number ... dia. / length 2 ...
  • Page 11 Outdoor Unit AE522SH Controller PCB POW – C226GH Type Rotary (Hermetic) Compressor model C – R221H5S 80687145B Nominal output 2,200 Compressor oil ... Amount 4GSD – T or SAY-56T ... 1,350 Ω Coil resistance (Ambient temp. 25°C) C – R : 0.78 C –...
  • Page 12 Outdoor Unit AE522SH3 380 - 400 V - 3N ~ 50 Hz Power source 220 - 240 V ~ 50 Hz Control circuit POW-C226GH CONTROLLER PCB COMPRESSOR Rotary (Hermetic) Type C-R223H8S-806-871-88B Compressor model 380 - 400 V - 3N ~ 50 Hz Source 2200 Nominal output...
  • Page 13 Outdoor Unit AER522SH3 380 - 400 V - 3N ~ 50 Hz Power source 220 - 240 V ~ 50 Hz Control circuit POW-C226GH CONTROLLER PCB COMPRESSOR Rotary (Hermetic) Type C-RN223H8A 80244088B Compressor model 380 - 400 V - 3N ~ 50 Hz Source 2200 Nominal output...
  • Page 14 Outdoor Unit AE522SC Controller PCB — Type Rotary (Hermetic) Compressor model C – R221H5S 80687145B Nominal output 2,200 Compressor oil ... Amount 4GSD – T or SAY-56T ... 1,350 Ω Coil resistance (Ambient temp. 25°C) C – R : 0.78 C –...
  • Page 15 Outdoor Unit AE522SC3 Part No. Johnson Control Controller Type Rotary (Hermetic) Compressor model C-R223H8S - 806187188B Source 380 – 400 V – 3N ~ 50 Hz Nominal output 2200 Compressor oil ... Amount SUNISO 4GSD-T ... 1350 Ω Coil resistance (Ambient temp. 25°C) C –...
  • Page 16 Outdoor Unit AER522SCL3 Part No. Johnson Control Controller Type Rotary (Hermetic) Compressor model C-RN223H8A 80244088B Source 380 – 400 V – 3N ~ 50 Hz Nominal output 2200 Compressor oil ... Amount FV68S ... 1350 Ω Coil resistance (Ambient temp. 25°C) C –...

  • Page 17: Dothers Componente Specifications

    OTHER COMPONENT SPECIFICATIONS Outdoor Unit AE522SC Power Relay G7L-2A-TUB Coil rating AC 200 – 240V, 50/60Hz Coil resistance kΩ (at 23°C) ( 21 ± 15% ) Contact rating AC 220V, 25A Thermostat (Fan Speed Control 23S) MQT5S-27YZJ 23.5°C +0 high Switching temp.
  • Page 18 Outdoor Unit AE522SC3 Electro Magnetic Contactor (MG) HOE-10TB TH-7A Magnetic Contactor Coil rating AC 220–240V, 50Hz / AC 240–260V, 60Hz Ω (at 25°C) Coil resistance 1,260 ± 10% Contact rating (Main) AC 440V, 8A Thermal relay (Overcurrent relay) Operating amperes Negative Phase Relay (47C) RDR-S400 Rating...
  • Page 19 Outdoor Unit AER522SCL3 Electro Magnetic Contactor (MG) HOE-10TB TH-7A Magnetic Contactor Coil rating AC 220–240V, 50Hz / AC 240–260V, 60Hz Ω (at 25°C) Coil resistance 1,260 ± 10% Contact rating (Main) AC 440V, 8A Thermal relay (Overcurrent relay) Operating amperes Negative Phase Relay (47C) RDR-S400 Rating...
  • Page 20 Outdoor Unit AE522SH Magnetic Contactor (MG) HE-20FT31B Coil rating AC 220/240 V,50Hz Ω (at 25°C) Coil resistance 1.050 ± 15% Contact rating (Main) AC 220V, 20A Thermostat (Defrost thermo. 23D) TRS02-12MSR316 Operating temp. °C 12 ± 2 Diff. 8 deg. below Thermostat (Fan Speed Control 23S) YTB-S383 high...
  • Page 21 Outdoor Unit AE522SH3 Electro Magnetic Contactor (MG) HOE-10TB TH-7A Magnetic Contactor Coil rating AC 220–240V, 50Hz / AC 240–260V, 60Hz Ω (at 25°C) Coil resistance 1,260 ± 10% Contact rating (Main) AC 440V, 8A Thermal relay (Overcurrent relay) Operating amperes Negative Phase Relay (47C) RDR-S400 Rating...
  • Page 22 Outdoor Unit AER522SH3 Electro Magnetic Contactor (MG) HOE-10TB TH-7A Magnetic Contactor Coil rating AC 220–240V, 50Hz / AC 240–260V, 60Hz Ω (at 25°C) Coil resistance 1,260 ± 10% Contact rating (Main) AC 440V, 8A Thermal relay (Overcurrent relay) Operating amperes Negative Phase Relay (47C) RDR-S400 Rating...

  • Page 23: Edimensionale Data

    DIMENSIONAL DATA...
  • Page 24 Outdoor Unit Air intake Air discharge Wide tube service valve ø15.88 (5/8") 6 – ø3.1 holes Narrow tube service valve ø6.35 (1/4") Unit : mm...

  • Page 25: Ffunction

    FUNCTION 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. ROOM TEMPERATURE MORE THAN WITHIN WITHIN 5 MINUTES 3 MINUTES 5 MINUTES THERMO OFF SET T + 0,5 ϒC...
  • Page 26 Heating MORE THAN 5 MINUTES THERMO THERMO THERMO T°C SET TEMP. T-0.5°C ROOM TEMP. 5 MINUTES 5 MINUTES COMPRESSOR OUTDOOR 30 SECONDS 30 SECONDS INDOOR SET SPEED SET SPEED STANDBY LAMP INDOOR HEAT EXCH. COIL TEMP. 35°C 25°C SOLENOID COIL ON (REVERSING CYCLE) (4-WAY VALVE) OPERATION...
  • Page 27 2) 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. THERMO OFF THERMO ON ROOM TEMP.
  • Page 28 For indoor units ADR522HW only INDOOR HEAT EXCH. COIL TEMP. °C INDOOR H o M o L H = High speed M = Medium speed L = Low speed COMPRESSOR • 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).
  • Page 29 4) DEFROSTING OPERATION (Heating) • When the capacity of the unit has been decreesed due to frosting up of the outdoor heat exchanger during heating, the temperature drop gradient is detected by the microcomputer-controlled temperature sensing system, and defrosting operation is started. DEFROSTING FLOWCHART Compressor ON Temperature of indoor heat...
  • Page 30 5) DEFROSTING MODE TIMING CHART START OF DEFROSTING RELEASE OF DEFROSTING MAX. 11 MINUTES 32 SECONDS 32 SECONDS COMPRESSOR OUTDOOR 2 SECONDS 2 SECONDS SOLENOID COIL (4-WAY VALVE) INDOOR SET SPEED SET SPEED STANDBY LAMP INDOOR HEAT EXCH. COIL TEMP. 35°C RELEASE OF L L = Low low speed...

  • Page 31: Grefrigerant Flow Diagram

    REFRIGERANT FLOW DIAGRAM Indoor Unit ADR522CW Outdoor Unit AE522SC AE522SC3/AER522SCL3 Indoor Unit Outdoor Unit Wide tube service Compressor Muffler Accumulator Wide tube valve O.D. Capillary for ø15.88 mm (5/8 ") liquid injection Narrow tube service Narrow tube valve Capillary tube Strainer O.D.
  • Page 32 3) For AER522SCL3 only (3 phase and low ambient version) • When the outside ambient temperature decreases, the rotation speed of the outdoor fan is regulated by means of the outdoor heat-exchanger sensor to prevent liquid back. • The rotation speed varies with indoor temperature conditions (Hatching area). •...

  • Page 33: Outdoor Unit

    ELECTRIC DIAGRAMS Outdoor Unit ADR522CW ADR522HW GRN/YEL UNIT TH1 (COIL) TH2 (ROOM) BODY THERMO 235V P-C PCB1 GRN/YEL REMOTE GRN/YEL CONTROL SWITCH...
  • Page 34 Outdoor Unit AE522SH AE522SH3 AER522SH3...
  • Page 35 Outdoor Unit AE522SC AER522SCL3 GRN/YEL GRN/YEL...

  • Page 36: Troubleshooting Heating Model

    TROUBLESHOOTING HEATING MODEL 1) CHECK BEFORE AND AFTER “TROUBLESHOOTING” a) Check power supply wiring. • WARNING: If the following troubleshooting must be done with power being supplied, be careful about any uninsulated live part that can cause ELECTRIC SHOCK. • Check that power supply wires are correctly connected to terminals: Single-phase system –No.
  • Page 37 (c) Check power supply • Check that voltage is in specified range (± 10% of the rating). • Check that power is being supplied Single-phase systems Three-phase systems 400V 400V 230V 400V 230 V (d) Check lead wires and connectors in indoor and outdoor units. •...
  • Page 38 2) SYSTEMATIC CHART OF “TROUBLESHOOTING” Air conditioner does not operate. When circuit breaker is Measure insulation Circuit breaker trips (or set to ON, it trips in a resistance of power fuse blows). few moments. supply wires. Circuit breaker trips in Check capacity of circuit several minutes after breaker.
  • Page 39 3) AIR CONDITIONER DOES NOT OPERATE (a) Circuit breaker trips (or fuse blows) • When circuit breaker is set to ON, it trips in a few moments. (Resetting is not possible). • Measure insulation resistance there is a possibility of ground fault. If resistance value is 1MΩ or less, insulation is defective.
  • Page 40 • Set circuit breaker to OFF. Remove power supply wires from terminal plate in outdoor Do rewiring unit. • Measure insulation resistance of power supply wires. Remove inter-unit wires from Measure insulation Insulation of outdoor terminal plate in outdoor unit. resistance of electrical parts unit is defective.
  • Page 41 (b) Circuit breaker trips in several minutes after turning air conditioner ON. • There is a possibility of short circuit. Check capacity of circuit breaker. Replace it with suitable one. Capacity of circuit breaker is (larger capacity). suitable? case Heating Measure resistance of outdoor fan operation: motor winding.
  • Page 42 (d) Check fuse on PCB Ass’y in indoor unit Check fuse on PCB Ass’y in indoor unit for continuity. If fuse blows, there is a possibility of short circuit. Measure resistance of primary winding transformer. Measure coil resistance of power relay or magnetic contactor in Measure resistance of outdoor unit.

  • Page 43: Lsame Parts Of Air Conditioner Do Not Operate

    SOME PARTS OF AIR CONDITIONER DO NOT OPERATE ONLY INDOOR FAN DOES NOT RUN Check fan casing for Remove foreign foreign matter on inside. matter or repair. Fan cannot Check fan rotation. Turn fan gently be turned once or twice by hand. Fan motor burnout or Repair or repla- foreign...
  • Page 44 ONLY COMPRESSOR DOES NOT RUN Single phase systems 230V - 1 - 50 Hz Measure resistance of compressor motor winding. Check compressor motor capacitor. (Either C1 or BC). Contact power utility company to Check power supply voltage. have power voltage restored to Voltage is abnormally low.
  • Page 45 b) Three-phase systems 400V - 3N - 50 Hz Check negative phase relay (47C) Rewire power supply wires. to see if it has operated. Check magnetic contactor. (MG) O.K. Check thermal relay (51C) to see if it has operated. Contact power utility company to Check power supply voltage.

  • Page 46: Mair Conditioner Operates,But Abnormalities Occur

    AIR CONDITIONER OPERATES, BUT ABNORMALITIES OCCUR POOR COOLING OR Check installation position of POOR HEATING remote control unit. Change installation position of remote control unit. Does cool or heat air from air conditioner reach position directly? Is heating or cooling load too Review heating or cooling load large? estimate.

  • Page 47: Ntroubleshooting Cooling Model

    • Check that inter-unit wiring (both the power wiring and control wiring) is correctly connected to the indoor unit from the outdoor unit. OUTDOOR INTER-UNIT INDOOR WIRING UNIT UNIT ADR522CW - AE522SC POWER SUPPLY POWER SUPPLY 50 Hz - Single-phase 220/230/240 V GROUND OUTDOOR...
  • Page 48 2) SYSTEMATIC CHART OF “TROUBLESHOOTING” Air conditioner does not operate. When circuit breaker is Measure insulation Circuit breaker trips (or set to ON, it trips in a resistance of power fuse blows). few moments. supply wires. Circuit breaker trips in Check capacity of circuit several minutes after breaker.
  • Page 49 • When circuit breaker is set to ON, it trips in a few moments. (Resetting is not possible). • Measure insulation resistance there is a possibility of ground fault. If resistance value is 1MΩ or less, insulation is defective. ADR522CW - AE522SC Unità Outdoor Unità...
  • Page 50 (b) Circuit breaker trips in several minutes after turning air conditioner ON. • There is a possibility of short circuit. Check capacity of circuit breaker. Replace it with suitable one. Capacity of circuit breaker is suita- (larger capacity). ble? Measure resistance of compressor motor winding.
  • Page 51 (d) Check fuse on PCB Ass’y in indoor unit Check fuse on PCB Ass’y in indoor unit for continuity. (F) If fuse blows, there is a possibility of short circuit. Measure resistance of pri- mary winding of transfor- mer. (TR) Measure coil resistance of power relay or magnetic contactor in out- Measure resistance of indoor...
  • Page 52 • Check magnetic contactor (only for AE522SC - AE522SC3 ) • Check coil resistance of magne- tic contactor. (52C or MG) • Check negative phase relay (only for AER522SCL3 - AE522SC3) • Check negative phase relay to see if it has operated. (47C) •...
  • Page 53 b) Three - phase systems 400V - 3N - 50 Hz • Measure resistance of compres- sor motor winding. Is temperature of compressor abnormally high? Is outdoor heat exchanger coil dirty or are there obstacles near air suc- Refrigerant gas shortage. tion inlet? Clean heat exchanger or remove Charge refrigerant gas.
  • Page 54 SOME PARTS OF AIR CONDITIONER DO NOT OPERATE ONLY INDOOR FAN DOES NOT RUN Check fan casing for Remove foreign foreign matter on inside. matter or repair. Fan cannot Check fan rotation. Turn fan gently be turned once or twice by hand. Fan motor burnout or Repair or repla- foreign matter in bea-...

  • Page 55: Pair Conditioner Operates,But Abnormalities Occur

    AIR CONDITIONER OPERATES, BUT ABNORMALITIES OCCUR Check installation position of remo- POOR COOLING Change installation position of te control unit. remote control unit. Does cool air from air conditioner reach position directly? Is cooling load too large? Review cooling load estimate. Refrigerant flow failure Temperature diffe-...

  • Page 56: Checking Electrical Components

    CHECKING ELECTRICAL COMPONENTS 1) Measurement of Insulation Resistance • The insuration is in good condition if the resistance exceeds 1 MΩ. (a) Power Supply Wires Clamp the earthed wire of the power supply wires with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the power wires (Fig.
  • Page 57 2) Checking Continuity of Fuse on PCB Ass’y • Remove PCB Ass’y from electrical component box. Then pull out the fuse from PCB Ass’y (Fig. 5). • Check continuity of fuse by the multimeter (Fig. 6). 3) Checking Motor Capacitor Remove the lead wiers from the capacitor terminals, and then place a probe on the capacitor terminals as shown in Fig.
  • Page 58 Via Varese, 90 - 21013 Gallarate - Va - Italy Tel. +39 0331 755111 - Fax +39 0331 776240 www.argoclima.it...

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