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Technibel CA92R5TA Series Technical Data & Service Manual

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TECHNICAL DATA
& SERVICE MANUAL
INDOOR UNIT: CA92R5TA-
SPLIT SYSTEM AIR CONDITIONER
Model No.
CA92R5TA-
CAV92R5TA-
CA122R5TA-
CAV122R5TA-
CAV92R5TA-
CA122R5TA-
CAV122R5TA-
Product Code No.
387106942
387106939
387106943
387106940
0.8180.252.0
07/2002

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  • Page 1 TECHNICAL DATA & SERVICE MANUAL INDOOR UNIT: CA92R5TA- CAV92R5TA- CA122R5TA- CAV122R5TA- SPLIT SYSTEM AIR CONDITIONER Model No. Product Code No. CA92R5TA- 387106942 CAV92R5TA- 387106939 CA122R5TA- 387106943 CAV122R5TA- 387106940 0.8180.252.0 07/2002...
  • Page 2 IMPORTANT! • Ground the unit following local electrical codes. • The Yellow/Green wire cannot be used for any connection Please read before installation different from the ground connection. • Connect all wiring tightly. Loose wiring may cause overheating This air conditioning system meets strict safety and operating at connection points and a possible fire hazard.

  • Page 3: Table Of Contents

    Table of Contents Page 1. SPECIFICATIONS 1-1 Unit specifications 1-2 Major Component specifications 1-3 Other Component specifications 2. DIMENSIONAL DATA 3. ELECTRICAL DATA 3-1 Electric Wiring Diagrams 4. FUNCTION 4-1 Room Temperature Control 4-2 Dry Operation (Dehumidification) 4-3 Automatic Switching between Cooling and Heating 4-4 Freeze Prevention (Cooling and Dry) 4-5 Compressor Overcurrent Protection (Cooling, Dry and Heating) 4-6 Overload Prevention (Heating)

  • Page 4: Specifications

    1. SPECIFICATIONS 1-1 Unit Specifications CA92R5TA- 220 - 240V ~ 50Hz Power source 230V Voltage rating Cooling Heating Performance See catalogue with the requested matching Capacity 700/600/500 Air circulation (High/Med/Low) m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Control unit Wireless remote control unit Timer ON/OFF 24 hours &...
  • Page 5 CAV92R5TA- 220 - 240V ~ 50Hz Power source 230V Voltage rating Cooling Heating Performance See catalogue with the requested matching Capacity 700/600/500 Air circulation (High/Med/Low) m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Wireless remote control unit Control unit ON/OFF 24 hours & Daily program, 1-hour OFF Timer 3 and Auto /1(Hi) Fan speed...
  • Page 6 CA122R5TA- 220 - 240V ~ 50Hz Power source 230V Voltage rating Cooling Heating Performance See catalogue with the requested matching Capacity 700/600/500 Air circulation (High/Med/Low) m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Wireless remote control unit Control unit Timer ON/OFF 24 hours & Daily program, 1-hour OFF 3 and Auto /1(Hi) Fan speed Auto...
  • Page 7 CAV122R5TA- 220 - 240V ~ 50Hz Power source 230V Voltage rating Cooling Heating Performance See catalogue with the requested matching Capacity 700/600/500 Air circulation (High/Med/Low) m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Control unit Wireless remote control unit Timer ON/OFF 24 hours & Daily program, 1-hour OFF 3 and Auto /1(Hi) Fan speed Airflow direction...

  • Page 8: Major Component Specifications

    1-2 Major Component Specifications CA92R5TA- Controller PCB XR99EH-(AR) Part No. Microprocessor Controls 250 V - 3,15 A Control circuit fuse RCS-6HPN4E-G Remote Control Unit Fan & Fan Motor Centrifugal fan Type 1…. Ø 280 / L 175 Q'ty ……. Dia. and lenght R4E280-AK45-12…1 Fan motor model…Q'ty 4 …...
  • Page 9 CAV92R5TA- Controller PCB XR99EH-(SA) Part No. Microprocessor Controls 250 V - 3,15 A Control circuit fuse RCS-6HPN4E-G Remote Control Unit Fan & Fan Motor Centrifugal fan Type 1…. Ø 280 / L 175 Q'ty ……. Dia. and lenght R4E280-AK45-12…1 Fan motor model…Q'ty 4 …...
  • Page 10 CA122R5TA- Controller PCB XR129EH-(AR) Part No. Microprocessor Controls 250 V - 3,15 A Control circuit fuse RCS-6HPN4E-G Remote Control Unit Fan & Fan Motor Centrifugal fan Type 1…. Ø 280 / L 175 Q'ty ……. Dia. and lenght R4E280-AK45-12 …1 Fan motor model…Q'ty 4…...
  • Page 11 CAV122R5TA- Controller PCB XR129EH-(SA) Part No. Microprocessor Controls 250 V - 3,15 A Control circuit fuse RCS-6HPN4E-G Remote Control Unit Fan & Fan Motor Centrifugal fan Type 1…. Ø 280 / L 175 Q'ty ……. Dia. and lenght Fan motor model…Q'ty R4E280-AK45-12 …1 4…...

  • Page 12: Other Component Specifications

    1-3 Other Component Specifications CA-CAV92R5TA- CA-CAV122R5TA- ATR-J105 Trasformer AC 230V, 50/60Hz Rating Primary 19V - 0.526A Secondary 10 VA Capacity Ω (at 21°C) Primary (WHT-WHT): 205 ± 10% Coil resistance Secondary (BRN-BRN): 2,0 ± 10% 150°C Thermal cut-off temp. PBC-41E-S14 Thermistor ( Coil sensor TH1) 0 °C 15,3 ±...

  • Page 13: Dimensional Data

    2. DIMENSIONAL DATA Units: mm...

  • Page 14: Electrical Data

    3. ELECTRICAL DATA 3-1 Electric Wiring Diagrams...

  • Page 15: Function

    4. FUNCTION 4-1. Room Temperature Control I Cooling G Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit. G The room temperature (and other information) is transmitted every 5 minutes by the remote control unit to the controller in the indoor unit.
  • Page 16 I Heating G Room temperature control is obtained by cycling the compressor ON and OFF under control of the room temperature sensor in the remote control unit. G The room temperature (and other information) is transmitted every 5 minutes by the remote control unit to the controller in the indoor unit.

  • Page 17: Dry Operation (Dehumidification)

    4-2. Dry Operation (Dehumidification) G 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 ON/OFF cycle automatically as shown in the chart below according to the room temperature.

  • Page 18: Freeze Prevention (Cooling And Dry)

    4-4. 5-4. Freeze Prevention (Cooling and Dry) G This function prevents freezing of the indoor heat exchange coil. G When the compressor has been running for 6 minutes or more and the temperature of the indoor heat exchange -1°C, coil falls below 2.4°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 19: Overload Prevention (Heating)

    4-6. Overload Prevention (Heating) G Overload prevention avoids overheating of the indoor heat exchange coil. This function works either when the temperature of indoor heat exchange coil rises up or compressor current rises to a certain level. I Temperature of indoor heat exchange coil sensor G When the temperature of the indoor heat exchange coil rises above A2°C, and if the indoor fan is L (low speed), the fan speed changes from L (low speed) to M (medium speed).

  • Page 20: Cold Draft Prevention (Heating)

    4-7. Cold Draft Prevention (Heating) G This function controls indoor fan speed so that strong draft of cold air could not blow out before the indoor heat exchange coil have sufficiently warmed up. G STANDBY lamp of the indoor unit lights up when this function is working. G Indoor fan operates in LL until indoor heat exchange coil temperature reaches 32°C.

  • Page 21: Defrosting Operation (Heating)

    4-8. Defrosting Operation (Heating) - Reverse-cycle Defrosting Defrosting Sequence Heating Operation compressor 4-way valve Frost Detection Frosting is assumed mostly under the following condition indoor heat exchanger coil temperature drops 0,8°c per 6 minutes and it repeats 3 times in succession integrated operating time of compressor is longer than 3 hours temperature of indoor heat exchanger coil, immediately...

  • Page 22: Drain Pump And Float Switch

    I Defrosting Mode Timing Chart Release of defrosting Start of defrosting 60 seconds Max. 8 to 12 minutes 60 seconds Compressor Outdoor fan 4 or 8 seconds 2 seconds Solenoid coil (4 – way valve) Indoor fan Set speed Set speed Standby lamp Indoor heat exch.

  • Page 23: Troubleshooting

    6. TROUBLESHOOTING 5-1. 6-1. 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. 5-1-1. 6-1-1. Check power supply wiring. G Check that power supply wires are correctly connected to terminals L and N on the terminal plate in the indoor unit.
  • Page 24 B. Circuit breaker trips in several minutes after turning the air conditioner on. G 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 : Measure resistance of outdoor fan •...
  • Page 25 C. Check remote control unit. • Try to run with another remote control unit. First remote control unit is defective. • Check for residue buildup on Clean transmitter. transmitter of remote control unit. • Check for residue buildup on remote control receiver on front of indoor Clean receiver.
  • Page 26 5-2-3. 6-2-3. Only outdoor unit does not run. A. Check setting temperature. COOL HEAT Is room temperature too low ? Is room temperature too high ? Try to lower setting temperature by Try to raise setting temperature by temperature setting button ( button).

  • Page 27: Some Part Of Air Conditioner Does Not Operate

    5-3. Some part of air conditioner does not operate. 5-3-1. 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 28 5-3-4. Only compressor does not run Check compressor motor Overload relay is working capacitor C1 (either OLR T or OLR A) Measure resistance of Temperature of compressor compressor motor winding is abnormally high Refrigerant gas shortage Charge refrigerant gas Measure power supply voltage Rotor may be locked up The voltage is too low 5-3-5.

  • Page 29: Air Conditioner Operates, But Abnormalities Are Observed

    5-4. Air conditioner operates, but abnormalities are observed 5-4-1. Operation does not switch from HEAT to COOL (or COOL to HEAT) Remote control unit Receiver in lamp ass'y may be defective may be defective Measure resistance of 4-way valve's winding (20S) COOL to HEAT Check voltage between terminals Outdoor PCB ass'y is defective...
  • Page 30 5-4-2. 6-4-2. Poor cooling or heating. • Check position of remote control unit. Change position of remote • Cool or warm air from air conditioner control unit. reaches position directly. • Wide and narrow tubes between Insulate both wide and narrow indoor unit and outdoor unit are tubes separately and then insulated.

  • Page 31: If A Sensor Is Defective

    5-5. If a sensor is defective. 5-5-1. Thermistor (TH1 or TH2) is defective. • Operation lamp on front side of • Indoor coil thermistor (TH1 ) or room indoor unit is blinking. (*) air thermistor (TH2 ) is defective. • Replace the thermistor. Alarm Signal (*) NOTE Operation lamp on the front side of the indoor unit will blink when either indoor coil thermistor or room...

  • Page 32: Checking Electrical Components

    6. CHECKING ELECTRICAL COMPONENTS 6-1 Measurement of Insulation power plug (Local supply) Resistance Ground The insulation is in good condition if the resistance exceeds 2MΩ probe Insulation tester NOTE 6-1-1. Power supply wires The shape of the power plug may differ from that of the air conditioner which you are servicing.

  • Page 33: Checking Continuity Of Fuse On Pcb Ass'y

    6-2 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 34: Maintenance

    7. MAINTENANCE 7-1 Changing Address of Remote Control Unit in Indoor Unit If you are installing more than 1 indoor unit (up to 2) in the same room, it is necessary for you to assign each unit its own address, so each can be operated by its own separate remote control unit. You assign the addresses by matching the remocon address on the PCB of each indoor unit with the switch positions of its remote control unit.
  • Page 35 R.D. 28 Reyrieux BP 131 - 01601 Trévoux CEDEX France Tél. 04.74.00.92.92 - Fax 04.74.00.42.00 R.C.S. Bourg-en-Bresse B 759 200 728...

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