Table of Contents
Related Manuals for Technibel MCAV72C5TA Series
Summary of Contents for Technibel MCAV72C5TA Series
- Page 1 TECHNICAL DATA & SERVICE MANUAL INDOOR UNIT: MCAV72C5TA- MCAV92C5TA- MCAV122C5TA- SPLIT SYSTEM AIR CONDITIONER Model No. Product Code No. MCAV72C5TA- 387104000 MCAV92C5TA- 387104001 MCAV122C5TA- 387104002 0.8180.259.1 05/2003...
- 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. PERFORMANCE DATA 3-1 Air Throw Distance Chart 4. ELECTRICAL DATA 4-1 Electric Wiring Diagrams 5. FUNCTION 5-1 Room Temperature Control 5-2 Dry Operation (Dehumidification) 5-3 Freeze Prevention (Cooling and Dry) 6. -
Page 4: Specifications
1. SPECIFICATIONS 1-1 Unit Specifications MCAV72C5TA- 220 - 240V ~ 50Hz Power source 230V Voltage rating Performance See catalogue with the requested matching Capacity 430 / 380 / 350 Air circulation (High / Med. / Low) m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Wireless remote control unit Control unit... - Page 5 MCAV92C5TA- 220 - 240V ~ 50Hz Power source 230V Voltage rating Performance See catalogue with the requested matching Capacity 450 / 400 / 370 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 6 MCAV122C5TA- 220 - 240V ~ 50Hz Power source 230V Voltage rating Performance See catalogue with the requested matching Capacity 470 / 430 / 390 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 7: Major Component Specifications
1-2 Major Component Specifications MCAV72C5TA- Controller PCB POW-KR79E(A), POW-KR9E(B) Part No. Controls Microprocessor Control circuit fuse 250 V - 3,15 A RCS-9PS4E-G Remote Control Unit Fan & Fan Motor Coss - flow Type 1…. Ø 95 / L 617 Q'ty ……. Dia. and lenght KFV4-21G5P-S…1 Fan motor model…Q'ty 4…1. - Page 8 MCAV92C5TA- Controller PCB POW-KR99E(A), POW-KR9E(B) Part No. Controls Microprocessor Control circuit fuse 250 V - 3,15 A RCS-9PS4E-G Remote Control Unit Fan & Fan Motor Coss - flow Type 1…. Ø 95 / L 617 Q'ty ……. Dia. and lenght KFV4-21G5P-S…1 Fan motor model…Q'ty 4…1.
- Page 9 MCAV122C5TA- Controller PCB POW-KR129E(A), POW-KR9E(B) Part No. Controls Microprocessor Control circuit fuse 250 V - 3,15 A RCS-9PS4E-G Remote Control Unit Fan & Fan Motor Coss - flow Type 1…. Ø 95 / L 617 Q'ty ……. Dia. and lenght KFV4-21G5P-S…1 Fan motor model…Q'ty 4…1, 235-1.270...
-
Page 10: Other Component Specifications
1-3 Other Component Specifications MCAV72C5TA- MCAV92C5TA- MCAV122C5TA- 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) Coil resistance Primary (WHT-WHT): 307 ± 10% Secondary (BRN-BRN): 1.8 ± 10% Thermal cut-off temp. -
Page 11: Dimensional Data
2. DIMENSIONAL DATA Drain hose ø18 Remote control unit 19.5 99.5 58.5 Narrow tube ø6.35 (1/4") Center of tubing hole (2 places) Wide tube ø9.52 (3/8") 7000/9000 BTU/h Wide tube ø12.7 (1/2") 12000 BTU/h Unit : mm... -
Page 12: Performance Data
3. PERFORMANCE DATA 3-1 Air Throw Distance Chart MCAV72C5TA- Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air verocity 0° Flap angle 30°... - Page 13 MCAV92C5TA- Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air verocity 0° Flap angle 30°...
- Page 14 MCAV122C5TA- Room air temp. : 27°C Fan speed High Horizontal distance (m) Axis air verocity 0° Flap angle 30°...
-
Page 15: Electrical Data
4. ELECTRICAL DATA 4-1 Electric Wiring Diagrams... -
Page 16: Function
5. FUNCTION 5-1. 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. ● 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)
5-2. Dry Operation (Dehumidification) ● 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 cycle of turning ON and OFF automatically as shown in the chart below according to the room temperature. -
Page 18: Freeze Prevention (Cooling And Dry)
5-3 Freeze Prevention (Cooling and Dry) - This function prevents freezing of the indoor heat exchange coil. - When the compressor has been running for 6 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 19: Troubleshooting
6. TROUBLESHOOTING 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. 6-1-1. Check power supply wiring. ● Check that power supply wires are correctly connected to terminals L and N on the terminal plate in the indoor unit. -
Page 20: Air Conditioner Does Not Operate
6-2. Air conditioner does not operate. 6-2-1. 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 21 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 motor winding.
- Page 22 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 Clean receiver.
- Page 23 6-2-3. Only outdoor unit does not run. A. Check setting temperature. COOL 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 24: Some Part Of Air Conditioner Does Not Operate
6-3. Some part of air conditioner does not operate. 6-3-1. 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 25 6-3-4. Only compressor does not run. Overload relay is working. • Check compressor motor (Either OLR T or OLR A) capacitor. (C1) • Measure resistance of Temperature of compressor is abnormally high. compressor motor winding. Refrigerant gas shortage. Charge refrigerant gas (R22). •...
-
Page 26: Air Conditioner Operates, But Abnormalities Are Observed
6-4. Air conditioner operates, but abnormalities are observed. 6-4-1. Poor cooling. • Check position of remote control unit. Change position of remote • Cool 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 27: If A Sensor Is Defective
6-5. If a sensor is defective. 6-5-1. Thermistor (TH1 or TH2) is defective. • Operation lamp on front side of • Indoor coil thermistor (TH1 ) or room indoor unit is flashing on and off. (*) air thermistor (TH2 ) is defective. •... -
Page 28: Checking Electrical Components
7. CHECKING ELECTRICAL COMPONENTS 7-1. Measurement of Insulation power plug (Local supply) Resistance ● The insulation is in good condition if the resistance Ground exceeds 2MΩ. probe 7-1-1. 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 29: Checking Continuity Of Fuse On Pcb Ass'y
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 30: Maintenance
8. MAINTENANCE 8-1. 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 31 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...