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Argo AWR222CLE - AER222SC Technical & Service Manual

Split system air conditioner
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TECHNICAL & SERVICE MANUAL
AWR222CLE - AER222SC
AWR222CLE - AER222SC3
SPLIT SYSTEM AIR CONDITIONER
0.8180.076.0
03/00

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Summary of Contents for Argo AWR222CLE - AER222SC

  • Page 1 TECHNICAL & SERVICE MANUAL AWR222CLE - AER222SC AWR222CLE - AER222SC3 SPLIT SYSTEM AIR CONDITIONER 0.8180.076.0 03/00...

  • Page 2: Please Read Before Starting

    Important! When Transporting Be careful when picking up and moving the indoor and Please Read Before Starting outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp This air conditioning system meets strict safety and edges or thin aluminum fins on the air conditioner can operating standards.

  • Page 3: Table Of Contents

    Table of Contents Page 1. OPERATING RANGE ..........................1 2. SPECIFICATIONS 2-1. Unit Specifications .......................... 2 2-2. Major Component Specifications....................4 2-3. Other Component Specifications....................7 3. DIMENSIONAL DATA..........................8 4. REFRIGERANT FLOW DIAGRAM ......................10 5. PERFORMANCE DATA 5-1. Performance charts ........................11 5-2.

  • Page 4: Operating Range

    1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum 32°C D.B. / 23°C W.B. 43°C D.B. Cooling Minimum 19°C D.B. / 14°C W.B. 19°C D.B.

  • Page 5: Specifications

    2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit AWR222CLE Outdoor Unit AER222SC Power Source 220 – 240 V ~ 50 Hz Cooling 6.35 / 6.40 / 6.40 Capacity BTU/h 21,669 / 21,837 / 21,840 Air circulation (High) Moisture removal (High) Liters/h Voltage rating 220 / 230 / 240 Available voltage range...
  • Page 6 Indoor Unit AWR222CLE Outdoor Unit AER222SC3 Power Source 380 – 400 V – 3N ~ 50 Hz Control Circuit 220 – 240 V ~ 50 Hz Cooling 6.25 Capacity BTU/h 21,325 Air circulation (High) Moisture removal (High) Liters/h Voltage rating 380 / 400 Available voltage range 342 to 440...

  • Page 7: Major Component Specifications

    2-1. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit AWR222CLE Source 220 – 240 V ~ 50 Hz Part No. POW-K185GS-N Controls Microprocessor Control circuit fuse 250 V – 3 A Remote Control Unit RCS - 2S1 Q´ty Cross - flow Number ...

  • Page 8: Outdoor Unit

    2-2-2. Outdoor Unit Outdoor Unit AER222SC Type Rotary (Hermetic) Compressor model C-RN221H5A 80244035 Source 220 – 240 V ~ 50 Hz Nominal output 2,200 Compressor oil ... Amount FV68S ... 1,350 Ω Coil resistance (Ambient temp. 25°C) C – R : 0.777 C –...
  • Page 9 Outdoor Unit AER222SC3 Power source 380 – 400 V – 3N ~ 50 Hz Control circuit 220 – 240 V ~ 50 Hz Type Rotary (Hermetic) Compressor model C-RN223H8A 80244088 Source 380 – 400 V – 3N ~ 50 Hz Nominal output 2,200 Compressor oil ...

  • Page 10: Other Component Specifications

    2-3. Other Component Specifications Indoor Unit AWR222CLE Transformer (TR) ATR-H85 Rating Primary AC 230V, 50/60Hz Secondary 11V, 0.727A Capacity Ω (at 21°C) Coil resistance Primary (WHT – WHT): 214 ± 10% Secondary (BRN – BRN): 1.58 ± 10% Thermal cut-off temp. 145°C, 2A, 250V Thermistor (Coil sensor TH1) PBC –...

  • Page 11: Dimensional Data

    3. DIMENSIONAL DATA Indoor Unit AWR222CLE 1000 Rear panel (center point of gravity) Remote control unit 18.5 Drain hose ø26 Narrow tube ø6.35 (1/4") Center of tubing hole (for right rear) Wide tube ø15.88 (5/8") Unit : mm...
  • Page 12 Outdoor Unit AER222SC AER222SC3 Air intake Air discharge Wide tube service valve ø15.88 (5/8") Narrow tube service valve ø6.35 (1/4") 6 – ø3.1 holes Check port ø6.35 (1/4") Unit : mm...

  • Page 13: Refrigerant Flow Diagram

    4. REFRIGERANT FLOW DIAGRAM Indoor Unit AWR222CLE Outdoor Unit AER222SC AER222SC3 Indoor Unit Outdoor Unit Wide tube service Compressor Accumulator Wide tube valve Muffler O.D. ø15.88 mm Capillary for (5/8 ") liquid injection Narrow tube service Narrow tube valve Capillary tube Drier O.D.

  • Page 14: Performance Data

    5. PERFORMANCE DATA 5-1. Performance charts Indoor Unit AWR222CLE Outdoor Unit AER222SC Cooling Characteristics Indoor inlet air D.B. temp. (°C) Outdoor fan speed High Outdoor inlet air D.B. temp. (°C) Indoor inlet air 1.1 (10) D.B. temp. (°C) Outdoor 1.0 ( 9 ) fan speed High 0.9 ( 8 )
  • Page 15 Indoor Unit AWR222CLE Outdoor Unit AER222SC3 Cooling Characteristics Indoor inlet air D.B. temp. (°C) Outdoor fan speed High Outdoor inlet air D.B. temp. (°C) Indoor inlet air 1.1 (10) D.B. temp. (°C) Outdoor 1.0 ( 9 ) fan speed High 0.9 ( 8 ) 0.8 ( 7 ) 0.7 ( 6 )

  • Page 16: Air Throw Distance Chart

    5-2. Air Throw Distance Chart Indoor Unit AWR222CLE Fan speed High Horizontal distance (m) Axis air verocity 0° Flap angle 30°...

  • Page 17: Cooling Capacity

    5-3. Cooling Capacity Indoor Unit AWR222CLE Outdoor Unit AER222SC 240V Single Phase 50Hz RATING CAPACITY 6.40 kW AIR FLOW RATE 900 m EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 5.89 5.61 5.27 4.85 2.40 2.57 2.76 2.97 3.87 3.72...
  • Page 18 Indoor Unit AWR222CLE Outdoor Unit AER222SC3 240V Single Phase 50Hz RATING CAPACITY 6.25 kW AIR FLOW RATE 900 m EVAPORATOR CONDENSER ENT. TEMP. °C OUTDOOR AMBIENT TEMP. °C W.B. D.B. 5.75 5.48 5.14 4.74 2.25 2.41 2.63 2.92 3.80 3.65 3.48 3.27 4.22...

  • Page 19: Electrical Data

    6. ELECTRICAL DATA 6-1. Electrical Characteristics Indoor Unit AWR222CLE Outdoor Unit AER222SC Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 220 / 240V Single phase 50Hz Rating Conditions Running Amps. 0.35 / 0.37 0.54 / 0.55 12.21 / 12.08 13.1 / 13.0...

  • Page 20: Electric Wiring Diagrams

    6-2. Electric Wiring Diagrams To avoid electrical shock hazard, be sure to Indoor Unit AWR222CLE disconnect power before checking, servicing WARNING and/or cleaning any electrical parts.
  • Page 21 To avoid electrical shock hazard, be sure to Outdoor Unit AER222SC disconnect power before checking, servicing WARNING and/or cleaning any electrical parts.
  • Page 22 To avoid electrical shock hazard, be sure to Outdoor Unit AER222SC3 disconnect power before checking, servicing WARNING and/or cleaning any electrical parts.

  • Page 23: Function

    7. FUNCTION 7-1. Room Temperature Control 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.

  • Page 24: Freeze Prevention

    7-2. Freeze Prevention 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 temperature rises above 8°C or 6 minutes has elapsed.

  • Page 25: Outdoor Fan Speed Control

    7-3. Outdoor Fan Speed Control 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 31.0°C for 5minutes or longer, the fan speed switches to HIGH. Outdoor air temperature (°C) 28.5...

  • Page 26: Troubleshooting

    8. TROUBLESHOOTING 8-1. Check before and after troubleshooting WARNING Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Disconnect power or turn off circuit breaker before you start checking or servicing. 8-1-1. Check power supply wiring. (For model AER222SC) Check that power supply wires are correctly connected to terminals L and N on the terminal plate in the outdoor unit.

  • Page 27: Air Conditioner Does Not Operate

    8-2. Air conditioner does not operate. 8-2-1. 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. If resistance value is 2MΩ...
  • Page 28 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. Measure resistance of outdoor fan •...
  • Page 29 8-2-2. Neither indoor nor outdoor unit runs. A. Power is not supplied. Circuit breaker Reset breaker. is tripped. • Check power supply. Power is being supplied to the Wait for recovery outdoor unit. Power failure or contact power company. B. Check remote control unit. •...
  • Page 30 D. Check transformer in indoor unit. • Measure resistance of primary and secondary winding. (TR1) E. Check fuse on the indoor PCB Ass'y. • Measure resistance of indoor If fuse has been blown, • Check fuse on indoor PCB Ass'y fan motor winding.
  • Page 31 8-2-3. Only outdoor unit does not run. A. Check setting temperature. Is room temperature too low ? Try to lower setting temperature by temperature setting button ( button). Outdoor unit still does not run. • Try to run using another remote control unit.
  • Page 32 C. Check negative phase relay. (Only for 3-phase model) Check negative phase relay to see • if it has operated. Rewire power supply wires. • D. Check magnetic contactor. Check coil resistance of magnetic • contactor. (MG) E. Check indoor PCB Ass'y. F.

  • Page 33: Some Part Of Air Conditioner Does Not Operate

    8-3. Some part of air conditioner does not operate. 8-3-1. Only indoor fan does not run. • Check fan casing Remove foreign foreign matter on matter or repair. Fan cannot inside. be turned. • Check fan rotation. Turn fan gently once or twice by hand.
  • Page 34 8-3-3. Only compressor does not run. Either overload relay or • Check compressor motor internal protector is working. capacitor. (C1) (Either OLR or 49C) • Measure resistance of Temperature of compressor is abnormally high. compressor motor winding. Refrigerant gas shortage. Recover refrigerant.

  • Page 35: Air Conditioner Operates, But Abnormalities Are Observed

    8-4. Air conditioner operates, but abnormalities are observed. 8-4-1. Poor cooling. • Check position of remote control unit. Change position of remote • Cool air from air conditioner reaches control unit. position directly. • Wide and narrow tubes between Insulate both wide and narrow indoor unit and outdoor unit are tubes separately and then insulated.

  • Page 36: If A Sensor Is Defective

    8-5. If a sensor is defective. 8-5-1. Indoor coil temp. thermistor (TH1) is defective. A. Open When thermistor opens, the air conditioner will be in the following conditions as the controller tries to detect extremely low indoor coil temperature. In Cooling mode: Function of freeze prevention continues to work.

  • Page 37: Refrigerant R407C: Special Precautions When Servicing The Unit

    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.

  • Page 38: Tools Specifically For R407C

    9-3. Tools specifically for R407C For servicing, use the following tools for R407C Tool Distinction Tool Name • Gauge manifold • Charging hose • Gas leak detector • Refrigerant cylinder • Charging cylinder Tools specifically for R407C • Refrigerant recovery unit •...

  • Page 39: In Case Of Compressor Malfunction

    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. See "9-3. Tools specifically for R407C". 9-5-1.Procedure for replacing compressor (1) Recovering refrigerant •...
  • Page 40 (5) 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.

  • Page 41: In Case Refrigerant Is Leaking

    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 carry out repairs, then recharge the refrigerant. (1) Detecting Leaks •...
  • Page 42 (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.

  • Page 43: Charging Additional Refrigerant

    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 CAUTION instructions given in "9-6.

  • Page 44: Checking Electrical Components

    10. CHECKING ELECTRICAL COMPONENTS 10-1.Measurement of Insulation Resistance Ground wire The insulation is in good condition if the resistance Clip exceeds 2MΩ. 10-1-1. Power Supply Wires Probe Clamp the grounding terminal of the power plug with a Insulation lead clip of the insulation resistance tester and tester measure the resistance by placing a probe on either of the two power terminals.

  • Page 45: Checking Continuity Of Fuse On Pcb Ass'y

    10-2.Checking Continuity of Fuse on PCB Ass'y Fuse Remove the PCB Ass’y from the electrical component box. Then pull out the fuse from the PCB Ass’y. (Fig. 5) PCB Ass’y Check for continuity using a multimeter as shown in Fig. 6. Fig.
  • Page 46 FILIBERTI S.p.A.  *DOODUDWH 9$  9LD 9DUHVH   ,WDO\ 7HO   )D[  (PDLO LWDOLD#DUJRFOLPDFRP...

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