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TECHNICAL DATA
& SERVICE MANUAL
INDOOR UNIT: CAF184MR5IA-
SPLIT SYSTEM AIR CONDITIONER
Model No.
Product Code No.
CAF184MR5IA-
387106971
0.8180.393.1
09/2006

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Summary of Contents for Technibel CAF184MR5IA Series

  • Page 1 TECHNICAL DATA & SERVICE MANUAL INDOOR UNIT: CAF184MR5IA- SPLIT SYSTEM AIR CONDITIONER Model No. Product Code No. CAF184MR5IA- 387106971 0.8180.393.1 09/2006...
  • Page 2 • Ground the unit following local electrical codes. IMPORTANT! • 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 Operation Functions 4-2 Protective Functions 4-3 Drain Pump and Float Switch 5.
  • Page 4: Specifications

    1. SPECIFICATIONS 1-1 Unit Specifications CAF184MR5IA- 220 - 240 V ~ 50 Hz Power source 230 V Voltage rating Performance See catalogue with the requested matching Capacity High/Med./Low 790/660/580 Air circulation m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Wireless remote control unit Control unit ON/OFF 24 hours &...
  • Page 5: Major Component Specifications

    1-2 Major Component Specifications CAF184MR5IA- Controller PCB CB-XMRV183EH Part No. Controls Microprocessor Control circuit fuse 250 V - 3,15 A RCS-3MVHPS4E Remote Control Unit Fan & Fan Motor Centrifugal fan Type 1…. Ø 280 / L 166 Q'ty ……. Dia. and lenght K35407 M01972 …1 Fan motor model…Q'ty 4…...
  • Page 6: Other Component Specifications

    1-3 Other Component Specifications CAF184MR5IA- ATR-I55 Trasformer (TR) AC 230 V, 50/60 Hz Rating Primary 13.7 V - 0.4 A Secondary 5.48 VA Capacity Ω (at 25°C) Primary (WHT-WHT): 307 ± 10% Coil resistance Secondary (BRN-BRN): 1.8 ± 10% 150°C Thermal cut-off temp.
  • Page 7: Dimensional Data

    2. DIMENSIONAL DATA Unit: mm...
  • Page 8: Electrical Data

    3. ELECTRICAL DATA 3-1 Electric Wiring Diagrams...
  • Page 9: Function

    4. FUNCTIONS 4-1. Operation Functions ■ Functions of the main unit controller ■ SENSOR DRY 1 OFF During automatic operation, the system adjusts the room : • Used to stop the unit when the remote temperature and fan speed according to the conditions in the (Self-diagnostics) controller is unavailable.
  • Page 10 ■ HIGH POWER ■ Lamp colors Raises the power but remains in the same operating mode. Operation lamp This function is set with the HIGH POWER button on the remote HEAT operation : Red controller. (It is set regardless of the temperature and fan speed settings.) DRY operation : Orange ●...
  • Page 11: Protective Functions

    4-2. Protective Functions ■ Overload prevention during heating ■ Cold-air prevention during heating During HEAT operation, the temperature of the indoor heat During heating, the fan speed is set to “LL” (very low) or stopped. exchanger is used to control the frequency and lessen the load As the temperature of the indoor heat exchanger rises, the fan on the compressor before the protective device is activated.
  • Page 12: Drain Pump And Float Switch

    4-3. Drain Pump and Float Switch...
  • Page 13: Troubleshooting

    5. TROUBLESHOOTING ■ Precautions before performing inspection or repair ● After checking the self-diagnostics monitor, turn the power OFF before starting inspection or repair. ● High-capacity electrolytic capacitors are used inside the outdoor unit controller (inverter). They retain an electrical charge (charging voltage DC 280 V) even after the power is turned OFF, and some time is required for the charge to dissipate.
  • Page 14 Details of Self-Diagnostics When the operation selector on the grille assy is moved from the ON or TEST position to the OFF (Self-diagnostics) position, the indicator lamps will flash (or remain ON) for 5 seconds and then turn OFF for 2 seconds (buzzer sounds once) to indicate the presence of a sensor failure or the activation of a protective function.
  • Page 15 ■ If the self-diagnostics function fails to operate • No indicators illuminate and the Check the indoor unit. indoor fan does not turn. • Check the power voltage. Blown Is the fuse blown? Normal Replace the circuit board or the fuse. Replace the controller.
  • Page 16 <Noise malfunction and electromagnetic interference> An inverter A/C operates using pulse signal control and high frequencies. Therefore, it is susceptible to the effects of external noise, and is likely to cause electromagnetic interference with nearby wireless devices. A noise filter is installed for ordinary use, preventing these problems. However, depending on the installation conditions, these effects may still occur.
  • Page 17: Checking Electrical Components

    6. CHECKING ELECTRICAL COMPONENTS 6-1. Measurement of Insulation power plug (Local supply) Resistance ● The insulation is in good condition if the resistance Ground exceeds 2MΩ. probe 6-1-1. Power Supply Wires Insulation tester Clamp the grounding terminal of the power plug with a NOTE lead clip of the insulation resistance tester and The shape of the power plug may differ from that...
  • Page 18: Checking Continuity Of Fuse On Pcb Ass'y

    6-2. 7-2. Checking Continuity of Fuse Fuse on PCB Ass'y ● 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.
  • Page 19 R.D. 28 Reyrieux BP 131 - 01601 Trévoux CEDEX France Tél. 04.74.00.92.92 - Fax 04.74.00.42.00...

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387106971

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