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Technibel MCAF78MR5I Technical & Service Manual

Technibel dc inverter multi-system air conditioner
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TECHNICAL &
SERVICE MANUAL
INDOOR UNIT : MCAF78MR5I
MCAF98MR5I
MCAF128MR5I
MCAF188R5I
MCAF248R5I
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
Capacity
2.20 kW
2.65 kW
3.50 kW
5.15 kW
7.10 kW
MCAF78MR5I
MCAF98MR5I
MCAF128MR5I
RoHS
This product does not contain any hazardous substances prohibited by the RoHS Directive.
•
WARNING
• You are requested to use RoHS compliant parts for maintenance or repair.
• You are requested to use lead-free solder.
Indoor Model No.
MCAF78MR5I
MCAF78MR5IAA
MCAF98MR5I
MCAF98MR5IAA
MCAF128MR5I
MCAF128MR5IAA
MCAF188R5I
MCAF188R5IAA
MCAF248R5I
MCAF248R5IAA
Wall Mounted Type Indoor Unit
< Applicable Multi-Outdoor Units >
GRF148MR5I (2-room multi unit)
GRF198MR5I (2-room multi unit)
GRF248MR5I (4-room multi unit)
GRF318MR5I (4-room multi unit)
NOTE
For details about the combinations, refer
to "Unit Combination Table" in the T. Service
Manual for the Multi Outdoor Units.
F-GAS REGULATION (EC) No 842 / 2006
Do not vent R410A into atmosphere : R410A is a fluorinated greenhouse gas,
covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 1975.
FILE NO.
Product Code No.
(1 852 349 58)
(1 852 349 59)
(1 852 349 60)
(1 852 349 61)
(1 852 349 62)
MCAF188R5I
MCAF248R5I
REFERENCE NO.
Destination: Europe
SM
700739

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Summary of Contents for Technibel MCAF78MR5I

  • Page 1 TECHNICAL & SERVICE MANUAL INDOOR UNIT : MCAF78MR5I MCAF98MR5I MCAF128MR5I FILE NO. MCAF188R5I MCAF248R5I Destination: Europe DC INVERTER MULTI-SYSTEM AIR CONDITIONER Capacity Indoor Model No. Product Code No. 2.20 kW MCAF78MR5I MCAF78MR5IAA (1 852 349 58) MCAF98MR5I MCAF98MR5IAA (1 852 349 59) 2.65 kW...

  • Page 2: Special Precautions

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

  • Page 3: Table Of Contents

    Checking the Indoor and Outdoor Units ................8-4. Trouble Diagnosis of Fan Motor ................... 8-5. Noise Malfunction and Electromagnetic Interference ............APPENDIX A INSTRUCTION MANUAL (MCAF78MR5I, MCAF98MR5I, MCAF128MR5I) ............. APPENDIX B INSTRUCTION MANUAL (MCAF188R5I, MCAF248R5I) .................. APPENDIX C INSTALLATION INSTRUCTIONS ................

  • Page 4: Applicable Multi-Outdoor Units

    APPLICABLE MULTI-OUTDOOR UNITS Multi-Outdoor Unit 2-Room 2-Room 4-Room 4-Room GRF148MR5I GRF198MR5I GRF248MR5I GRF318MR5I Indoor Unit MCAF78MR5I MCAF98MR5I MCAF128MR5I MCAF188R5I MCAF248R5I...

  • Page 5: Operating Range

    1. OPERATING RANGE Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. 32 °C D.B. / 23 °C W.B. 43 °C D.B. Maximum Cooling 19 °C D.B. / 14 °C W.B. 19 °C D.B. Minimum 27 °C D.B. 24 °C D.B. / 18 °C W.B. Maximum Heating 16 °C D.B.

  • Page 6: Specifications

    2. SPECIFICATIONS 2-1. Unit Specifications Indoor Unit MCAF78MR5I Type Wall Mounted Type Indoor Unit Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity BTU/h 7,500 8,500 Air Circulation (High) Moisture Removal (High) Liters/h Electrical Rating...
  • Page 7 Indoor Unit MCAF98MR5I Type Wall Mounted Type Indoor Unit Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity 2.65 BTU/h 9,000 12,300 Air Circulation (High) Moisture Removal (High) Liters/h Electrical Rating Cooling Heating Available Voltage Range 198 to 264 Running Amperes 0.15...
  • Page 8 Indoor Unit MCAF128MR5I Type Wall Mounted Type Indoor Unit Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity BTU/h 11,900 14,300 Air Circulation (High) Moisture Removal (High) Liters/h Electrical Rating Cooling Heating Available Voltage Range 198 to 264 Running Amperes 0.15...
  • Page 9 Indoor Unit MCAF188R5I Type Wall Mounted Type Indoor Unit Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity 5.15 BTU/h 17,600 20,500 Air Circulation (High) Moisture Removal (High) Liters/h Electrical Rating Cooling Heating Available Voltage Range 198 to 264 Running Amperes 0.15...
  • Page 10 Indoor Unit MCAF248R5I Type Wall Mounted Type Indoor Unit Power Source 220 to 240V Single-Phase 50Hz Voltage Rating 230V Performance Cooling Heating Capacity BTU/h 24,200 29,000 Air Circulation (High) Moisture Removal (High) Liters/h Electrical Rating Cooling Heating Available Voltage Range 198 to 264 Running Amperes Power Input...

  • Page 11: Major Component Specifications

    2-2. Major Component Specifications 2-2-1. Indoor Unit Indoor Unit MCAF78MR5I Control PCB Part No. CB-KMRV74EH Controls Microprocessor Control Circuit Fuse 250V 3.15A Remote Control Unit RCS-4MHVPIN4E Type Cross-Flow Q'ty ... Dia. and Length 1 ... D94 / L634 Fan Motor...
  • Page 12 Indoor Unit MCAF98MR5I Control PCB Part No. CB-KMRV94EH Controls Microprocessor Control Circuit Fuse 250V 3.15A Remote Control Unit RCS-4MHVPIN4E Type Cross-Flow Q'ty ... Dia. and Length 1 ... D94 / L634 Fan Motor Type DC Motor Model ... Q'ty SIC-39CVL-D847-4 ... 1 No.
  • Page 13 Indoor Unit MCAF128MR5I Control PCB Part No. CB-KMRV124EH Controls Microprocessor Control Circuit Fuse 250V 3.15A Remote Control Unit RCS-4MHVPIN4E Type Cross-Flow Q'ty ... Dia. and Length 1 ... D94 / L634 Fan Motor Type DC Motor Model ... Q'ty SIC-39CVL-D847-4 ... 1 No.
  • Page 14 Indoor Unit MCAF188R5I Control PCB Part No. CB-KRV184EH Controls Microprocessor Control Circuit Fuse 250V 3.15A Remote Control Unit RCS-4MHVPINW4E Type Cross-Flow Q'ty ... Dia. and Length 1 ... D94 / L845 Fan Motor Type DC Motor Model ... Q'ty SIC-39CVL-D847-2 ... 1 No.
  • Page 15 Indoor Unit MCAF248R5I Control PCB Part No. CB-KRV244EH Controls Microprocessor Control Circuit Fuse 250V 3.15A Remote Control Unit RCS-4MHVPINW4E Type Cross-Flow Q'ty ... Dia. and Length 1 ... D94 / L845 Fan Motor Type DC Motor Model ... Q'ty SIC-39CVL-D847-2 ... 1 No.

  • Page 16: Other Component Specifications

    2-3. Other Component Specifications Quantity of Sensor Model No. Sensor Name of sensor MCAF78MR5I MCAF98MR5I MCAF128MR5I MCAF188R5I MCAF248R5I PTM-D51H- S3 TH2 Indoor air temp sensor PTM-D51H- S3-2 TH2 Temperature (°C) Quantity of Sensor Model No. Sensor Name of sensor MCAF78MR5I MCAF98MR5I MCAF128MR5I MCAF188R5I MCAF248R5I...

  • Page 17: Dimensional Data

    3. DIMENSIONAL DATA Indoor Unit MCAF78MR5I MCAF98MR5I MCAF128MR5I Unit: mm...
  • Page 18 Indoor Unit MCAF188R5I MCAF248R5I Unit: mm...

  • Page 19: Refrigerant Flow Diagram

    4. REFRIGERANT FLOW DIAGRAM 4-1. Refrigerant Flow Diagram Indoor Unit MCAF78MR5I MCAF98MR5I MCAF128MR5I Indoor unit O.D. 9.52 mm (3/8") Indoor heat exchanger O.D. 6.35 mm (1/4") Cooling cycle Heating cycle Indoor Unit MCAF188R5I Indoor unit O.D. 12.7 mm (1/2") Indoor heat exchanger O.D.

  • Page 20: Performance Data

    5. PERFORMANCE DATA 5-1. Air Throw Distance Charts Indoor Unit MCAF78MR5I Cooling 27 °C Room air temp. : Fan speed High Horizontal distance (m) : Flap angle 0°, : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30°...
  • Page 21 Indoor Unit MCAF98MR5I Cooling 27 °C Room air temp. : Fan speed High Horizontal distance (m) : Flap angle 0°, : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30° Heating 20 °C Room air temp. : Fan speed High Horizontal distance (m)
  • Page 22 Indoor Unit MCAF128MR5I Cooling 27 °C Room air temp. : Fan speed High Horizontal distance (m) : Flap angle 0°, : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30° Heating 20 °C Room air temp. : Fan speed High Horizontal distance (m)
  • Page 23 Indoor Unit MCAF188R5I Cooling 27 °C Room air temp. : Fan speed High Horizontal distance (m) : Flap angle 0°, : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30° Heating 20 °C Room air temp. : Fan speed High Horizontal distance (m)
  • Page 24 Indoor Unit MCAF248R5I Cooling 27 °C Room air temp. : Fan speed High Horizontal distance (m) : Flap angle 0°, : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30° Heating 20 °C Room air temp. : Fan speed High Horizontal distance (m)

  • Page 25: Electrical Data

    6. ELECTRICAL DATA 6-1. Electric Wiring Diagrams Indoor Unit MCAF78MR5I MCAF98MR5I MCAF128MR5I To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. TERMINAL BASE EVAPORATOR CONNECTOR FLAP FLAP 5P (WHT) LAMP...
  • Page 26 Indoor Unit MCAF188R5I MCAF248R5I To avoid electrical shock hazard, be sure to WARNING disconnect power before checking, servicing and/or cleaning any electrical parts. TERMINAL BASE EVAPORATOR CONNECTOR FLAP FLAP 5P (WHT) LAMP 10P (WHT) FLAP MOTOR CONTROLLER ROOM THERMISTOR ROOM/COIL 4P (WHT) 6P (BLU) COIL THERMISTOR...

  • Page 27: Functions

    7. FUNCTIONS 7-1. Operation Functions Emergency operation SENSOR DRY Emergency operation is available when the remote During DRY operation, the system adjusts the room temperature and fan speed according to the conditions in the controller malfunctions, has been lost, or otherwise room, in order to maintain a comfortable room environment.

  • Page 28: Night Setback

    HIGH POWER NIGHT SETBACK This function acts to raise the power but keeps the AC system in • When NIGHT SETBACK operation is set, the temperature and the same operating mode. fan speed settings will be adjusted automatically to allow This function is set with the HIGH POWER button on the remote comfortable sleep.

  • Page 29: Protective Functions

    7-2. 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 30: Troubleshooting

    8. TROUBLESHOOTING 8-1. 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 310V) even after the power is turned OFF, and some time is required for the charge to dissipate. Be careful not to touch any electrified parts before the controller LED (red) turns OFF.
  • Page 31 (1) Self-diagnostics Lamps INDOOR UNIT (1) OPERATION lamp (2) TIMER lamp (3) QUIET lamp ION lamp OPERATION button REMOTE CONTROL receiver • Since the indications cover various units, the corresponding parts listed below may not be present in some models..

  • Page 32: Checking The Indoor And Outdoor Units

    (2) If the self-diagnostics function fails to operate • No indicators illuminate and the Check the indoor unit. indoor fan does not rotate. • Check the power voltage. Blown Is the fuse blown? Normal Replace the circuit board or the fuse. Replace the controller.

  • Page 33: Trouble Diagnosis Of Fan Motor

    8-4. Trouble Diagnosis of Fan Motor 8-4-1. Indoor Fan Motor This indoor DC fan motor contains an internal control PCB. Therefore, it is not possible to measure the coil resistance, and the following procedure should be used to check the motor. To perform diagnosis, operate the unit in cooling mode with indoor fan speed "High".

  • Page 34: Noise Malfunction And Electromagnetic Interference

    8-5. 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 35: Appendix Ainstruction Manual

    APPENDIX A INSTRUCTION MANUAL MCAF78MR5I MCAF98MR5I MCAF128MR5I (OI-852-6-4181-047-00-0)
  • Page 36 OPERATING INSTRUCTIONS • INSTRUCCIONES DE USO NOTICE D’UTILISATION • BEDIENUNGSANLEITUNG ISTRUZIONI D’USO This air conditioner uses the new refrigerant R410A MCAF78MR5I MCAF98MR5I MCAF128MR5I Save These Instructions • Guardéis estas instrucciones Conserver ce notice d’utilisation • Bewahren Sie bitte diese Bedienungsanleitung auf Conservate queste istruzioni Split air conditioner system •...
  • Page 37 Features This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • Microprocessor Controlled Operation • Hot Start Heating System The interior compartment of the remote control Right from the start, the air is warm and unit contains several features to facilitate...
  • Page 38 Contents Page Features ......................2 Product Information................... 3 Alert Symbols....................3 Installation Location ..................4 Electrical Requirements ..................4 Safety Instructions..................... 4 Names of Parts ....................5 Using the Remote Control Unit ............... 10 Operation with the Remote Control Unit ............12 1.
  • Page 39 Installation Location • We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit. • Before installation, check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate.
  • Page 40 Names of Parts Air intakes INDOOR UNIT Air outlet Remote control unit Drain hose Refrigerant tubes OUTDOOR UNIT Air outlet This illustration is based on the external view of a standard model. NOTE Consequently, the shape may differ from that of the air conditioner which you have selected.
  • Page 41 Unit Display and Operation Button INDOOR UNIT IMPORTANT OPERATION lamp TIMER lamp Avoid using radio equipment QUIET lamp such as mobile phone near ION lamp (within 1 m) the remote control receiver. Some radio OPERATION button equipment may cause malfunction of the unit. If the trouble happens, disconnect power and restart REMOTE CONTROL receiver...
  • Page 42 Remote Control Unit (Display) Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Displayed when the time display is set to 12-hour time. Symbols (1) Operation mode (4) Timer 24-hour clock with ON/OFF...

  • Page 43: Remote Control Unit

    Remote Control Unit Sensor Transmitter (Cover closed) Display ON/OFF operation button ION button 1 HR. TIMER button Temperature setting buttons (TEMP.) MODE selector button QUIET button FAN SPEED selector button NIGHT SETBACK button FLAP button HIGH POWER button ON TIME Advance button OFF TIME Advance button...
  • Page 44 Remote Control Unit (continued) Temperature setting buttons Press the button to increase the set temperature. (TEMP.) Press the button to reduce the set temperature. The temperature setting changes by 1 °C or 2 °F each time one of the TEMP. buttons is pressed.
  • Page 45 Remote Control Unit (continued) SENSOR button When you press this button (use a small-tipped object such as a ballpoint pen), the mark will appear at the display. And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly.
  • Page 46 Using the Remote Control Unit (continued) How to Use the Remote When using the remote control unit, always point the unit’s transmitter head Control Unit directly at the air conditioner’s receiver. Air conditioner (Indoor unit) Receiver Remote control (Transmitter head) unit Remote Control Unit The remote control unit may be operated either from a non-fixed position or...
  • Page 47 Operation with the Remote Control Unit 1. Automatic Operation The air conditioner calculates the difference between the thermostat setting and room temperature, and automatically selects ‘‘COOL’’ or ‘‘HEAT’’ mode as appropriate. STEP 2 STEP 1 NOTE Check that the circuit breaker on the power panel is turned on. Once mode is selected and the unit is preset by following the steps below, you can have the air conditioner automatically bring the room to the desired...
  • Page 48 Operation with the Remote Control Unit (continued) 2. Manual Operation STEP 2 STEP 3 STEP 1 STEP 4 STEP 5 NOTE Check that the circuit breaker on the power panel is turned on. If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired.
  • Page 49 Operation with the Remote Control Unit (continued) NOTE • Choose the best position in the room for the remote control unit, which also acts as the sensor for room comfort and transmits the operating instructions. Once you’ve found this best position, always keep the remote control unit there.
  • Page 50 Operation with the Remote Control Unit (continued) 4. Night Setback Mode Night Setback Mode is used for saving energy. Press the NIGHT SETBACK button while operation. mark appears in the display. To release the night setback function, press the NIGHT SETBACK button again.
  • Page 51 Operation with the Remote Control Unit (continued) 5. QUIET Mode QUIET Mode is used to reduce the fan sound of the indoor unit. Press the QUIET button. mark appears in the display. To cancel, press QUIET button again. • In QUIET Mode, the fan rotates at a slower speed than the fan speed setting.
  • Page 52 Special Remarks ‘‘DRY’’ ( ) Operation How it works? • Once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically. • During DRY operation, the fan speed automatically runs at lower speed for providing a comfortable breeze.
  • Page 53 Setting the Timer NOTE In the descriptions below, the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote control. • Temperature: °C • Time: AM, PM 1. How to set the present (Example) To set to 10:30 pm.
  • Page 54 Setting the Timer (continued) 3. How to set the ON time (Example) To start operation at 7:10 am. Operation Indication 1. Press the ON TIME setting The timer indication is button once. displayed, and the present ON time is shown. 2.
  • Page 55 Using the 1-Hour OFF Timer 1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed. indicator in the display indicates that this function is operating. Setting procedure: Regardless of whether the unit is operating or stopped, press the 1 HR.
  • Page 56 Adjusting the Airflow Direction 1. Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right. When the humidity is high, the vertical vanes should be in the front CAUTION position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the right or left, condensation may begin to form around the air vent and drip down.
  • Page 57 Operation without the Remote Control Unit INDOOR UNIT If you have lost the remote control unit or it has trouble, follow the steps below. When the air conditioner is not running Each time the OPERATION button is pressed, the type of operation conducted is indicated by the changing color of the OPERATION lamp.
  • Page 58 Care and Cleaning (continued) Anti-Mold Filter The anti-mold filter behind the air intake grille should be checked and cleaned at least once every two weeks. How to remove the anti-mold 1. Grasp both ends of the air Air intake grille filter intake grille, and remove it by opening towards the...
  • Page 59 Care and Cleaning (continued) Air Clean Filter The air clean filter removes dust and dirt from the air, and reduces odors and smoke from tobacco. This air clean filter cannot remove harmful gases or vapors nor ventilate air in the room. You must open doors or windows frequently when you use gas or oil heating appliances.
  • Page 60 Troubleshooting If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center. Trouble Possible Cause Remedy Air conditioner does not run at all. 1.

  • Page 61: Mcaf188R5I Mcaf248R5I

    APPENDIX B INSTRUCTION MANUAL MCAF188R5I MCAF248R5I (OI-852-6-4181-048-00-0)
  • Page 62 OPERATING INSTRUCTIONS • INSTRUCCIONES DE USO NOTICE D’UTILISATION • BEDIENUNGSANLEITUNG ISTRUZIONI D’USO This air conditioner uses the new refrigerant R410A MCAF188R5I MCAF248R5I Save These Instructions • Guardéis estas instrucciones Conserver ce notice d’utilisation • Bewahren Sie bitte diese Bedienungsanleitung auf Conservate queste istruzioni Split air conditioner system •...
  • Page 63 Features This air conditioner is an inverter type unit that automatically adjusts capability as appropriate. Details on these functions are provided below; refer to these descriptions when using the air conditioner. • Microprocessor Controlled Operation • Automatic Switching between Cooling and Heating The interior compartment of the remote control unit contains several features to facilitate...
  • Page 64 Contents Page Features ......................2 Product Information................... 3 Alert Symbols....................3 Installation Location ..................4 Electrical Requirements ..................4 Safety Instructions..................... 4 Names of Parts ....................5 Using the Remote Control Unit ............... 10 Operation with the Remote Control Unit ............12 1.

  • Page 65: Installation Location

    Installation Location • We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit. • Before installation, check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate.

  • Page 66: Names Of Parts

    Names of Parts Air intakes INDOOR UNIT Air outlet Remote control unit Drain hose Refrigerant tubes OUTDOOR UNIT Air outlet This illustration is based on the external view of a standard model. NOTE Consequently, the shape may differ from that of the air conditioner which you have selected.
  • Page 67 Unit Display and Operation Button INDOOR UNIT IMPORTANT OPERATION lamp TIMER lamp Avoid using radio equipment QUIET lamp such as mobile phone near ION lamp (within 1 m) the remote control receiver. Some radio OPERATION button equipment may cause malfunction of the unit. If the trouble happens, disconnect power and restart REMOTE CONTROL receiver...
  • Page 68 Remote Control Unit (Display) Displayed when transmitting data Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Displayed when the time display is set to 12-hour time. Symbols (1) Operation mode (4) Timer 24-hour clock with ON/OFF...
  • Page 69 Remote Control Unit Sensor Transmitter (Cover closed) Display ON/OFF operation button ION button 1 HR. TIMER button Temperature setting buttons (TEMP.) MODE selector button QUIET button FAN SPEED selector button NIGHT SETBACK button FLAP button HIGH POWER button ON TIME Advance button OFF TIME Advance button...
  • Page 70 Remote Control Unit (continued) Temperature setting buttons Press the button to increase the set temperature. (TEMP.) Press the button to reduce the set temperature. The temperature setting changes by 1 °C or 2 °F each time one of the TEMP. buttons is pressed.

  • Page 71: Using The Remote Control Unit

    Remote Control Unit (continued) SENSOR button When you press this button (use a small-tipped object such as a ballpoint pen), the mark will appear at the display. And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly.
  • Page 72 Using the Remote Control Unit (continued) How to Use the Remote When using the remote control unit, always point the unit’s transmitter head Control Unit directly at the air conditioner’s receiver. Air conditioner (Indoor unit) Receiver Remote control (Transmitter head) unit Remote Control Unit The remote control unit may be operated either from a non-fixed position or...

  • Page 73: Operation With The Remote Control Unit

    Operation with the Remote Control Unit 1. Automatic Operation When the remote control’s S/M switch is at the “S” (Single) position This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting.

  • Page 74: Manual Operation

    Operation with the Remote Control Unit (continued) 2. Manual Operation STEP 2 STEP 3 STEP 1 STEP 4 STEP 5 NOTE Check that the circuit breaker on the power panel is turned on. If the automatic operation settings of the unit do not meet your needs, press the setting buttons as described below and change the settings as desired.

  • Page 75: Adjusting The Fan Speed

    Operation with the Remote Control Unit (continued) NOTE • Choose the best position in the room for the remote control unit, which also acts as the sensor for room comfort and transmits the operating instructions. Once you’ve found this best position, always keep the remote control unit there.

  • Page 76: Night Setback Mode

    Operation with the Remote Control Unit (continued) 5. Night Setback Mode Night Setback Mode is used for saving energy. Press the NIGHT SETBACK button while operation. mark appears in the display. To release the night setback function, press the NIGHT SETBACK button again.

  • Page 77: Quiet Mode

    Operation with the Remote Control Unit (continued) 6. QUIET Mode QUIET Mode is used to reduce the fan sound of the indoor unit. Press the QUIET button. mark appears in the display. To cancel, press QUIET button again. • In QUIET Mode, the fan rotates at a slower speed than the fan speed setting.

  • Page 78: Special Remarks

    Special Remarks ‘‘DRY’’ ( ) Operation How it works? • Once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically. • During DRY operation, the fan speed automatically runs at lower speed for providing a comfortable breeze.

  • Page 79: Setting The Timer

    Setting the Timer NOTE In the descriptions below, the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote control. • Temperature: °C • Time: AM, PM 1. How to set the present (Example) To set to 10:30 pm.
  • Page 80 Setting the Timer (continued) 3. How to set the ON time (Example) To start operation at 7:10 am. Operation Indication 1. Press the ON TIME setting The timer indication is button once. displayed, and the present ON time is shown. 2.

  • Page 81: Using The 1-Hour Off Timer

    Using the 1-Hour OFF Timer 1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed. indicator in the display indicates that this function is operating. Setting procedure: Regardless of whether the unit is operating or stopped, press the 1 HR.

  • Page 82: Adjusting The Airflow Direction

    Adjusting the Airflow Direction 1. Horizontal The horizontal airflow can be adjusted by moving the vertical vanes with your hands to the left or right. When the humidity is high, the vertical vanes should be in the front CAUTION position during the cooling or dehumidifying operation. If the vertical vanes are positioned all of the way to the right or left, condensation may begin to form around the air vent and drip down.

  • Page 83: Operation Without The Remote Control Unit

    Operation without the Remote Control Unit INDOOR UNIT If you have lost the remote control unit or it has trouble, follow the steps below. When the air conditioner is not running Each time the OPERATION button is pressed, the type of operation conducted is indicated by the changing color of the OPERATION lamp.
  • Page 84 Care and Cleaning (continued) Anti-Mold Filter The anti-mold filter behind the air intake grille should be checked and cleaned at least once every two weeks. How to remove the anti-mold 1. Grasp both ends of the air Air intake grille filter intake grille, and remove it by opening towards the...
  • Page 85 Care and Cleaning (continued) Air Clean Filter The air clean filter removes dust and dirt from the air, and reduces odors and smoke from tobacco. This air clean filter cannot remove harmful gases or vapors nor ventilate air in the room. You must open doors or windows frequently when you use gas or oil heating appliances.

  • Page 86: Troubleshooting

    Troubleshooting If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or service center. Trouble Possible Cause Remedy Air conditioner does not run at all. 1.

  • Page 87: Appendix C Installation Instructions

    APPENDIX C INSTALLATION INSTRUCTIONS MCAF78MR5I MCAF98MR5I MCAF128MR5I MCAF188R5I MCAF248R5I (II-852-6-4190-445-00-0)

  • Page 88: Installation Instructions

    Combine indoor and outdoor units only as listed IMPORTANT! below. Please Read Before Starting ........2 Indoor Unit Outdoor Unit GENERAL ............3 MCAF78MR5I GRF148MR5I 1-1. Tools Required for Installation (not supplied) MCAF98MR5I GRF198MR5I 1-2. Accessories Supplied with Unit 1-3. Optional Copper Tubing Kit...

  • Page 89: Important

    IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and oper- When Installing… ating standards. As the installer or service person, it is an …In a Ceiling or Wall important part of your job to install or service the system so it operates safely and efficiently.

  • Page 90: General

    1. General This booklet briefly outlines where and how to install 5. Carpenter’s level the air conditioning system. Please read over the 6. Sabre saw or key hole saw entire set of instructions for the indoor and outdoor 7. Hacksaw units and make sure all accessory parts listed are with 8.

  • Page 91: Additional Materials Required For Installation

    1-5. Additional Materials Required for Installation Refrigeration (armored) tape Insulated staples or clamps for connecting wire (See local codes) Putty Refrigeration lubricant Clamps or saddles to secure refrigerant tubing Indoor unit 2. Installation Site Selection 2-1. Indoor Unit To prevent abnormal heat generation WARNING and the possibility of fire, do not place obstacles, enclosures and...
  • Page 92 Install the indoor unit more than 1 meter away from any antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation. install in a sturdy manner to avoid increased operat- ing noise.

  • Page 93: How To Install The Indoor Unit

    3. How to Install the Indoor Unit 3-1. Remove the Rear Panel from the Unit (1) Remove and discard the set screw on the rear panel. (Fig. 6) (2) Press the 2 marks on the frame cover and dis- engage the stationary tabs from the frame. (Fig. 7) Set screw only for transportation (3) Remove the rear panel.

  • Page 94: Install The Rear Panel On The Wall

    (4) Using a sabre saw, key hole saw or hole-cutting NOTE drill attachment, cut a hole in the wall. See Table 4 Hole should be made at a slight downward slant to the and Fig. 10. outdoor side. Table 4 Indoor Outdoor Hole Dia.

  • Page 95: Remove The Grille To Install The Indoor Unit

    Air intake grille Grille 3-4. Remove the Grille to Install the Indoor Unit 3-4-1. Indoor unit types (MCAF78/98/128) Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below. Fig.
  • Page 96 3-4-2. Indoor unit types Grille Air intake grille (MCAF188/248) Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below. How to remove the grille Fig.

  • Page 97: Shape The Indoor Side Tubing

    3-5. Shape the Indoor Side Tubing (1) Arrangement of tubing by directions Frame a) Right or left tubing Cut out the corner of the right/left frame with a hacksaw or the like. (Figs. 20 and 21) Left tubing b) Right-rear or left-rear tubing outlet In this case, the corner of the frame need not be cut.

  • Page 98: Wiring Instructions For Inter-Unit Connections

    3-7. Wiring Instructions for Inter-unit Connections (1) Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling Cover towards you. (2) Remove the screw on the right side cover plate and open the cover. (Fig. 24) (3) Insert the inter-unit wiring into the through-the-wall PVC pipe.
  • Page 99 Loose wiring may cause the WARNING terminal to overheat or result in unit malfunction. A fire hazard may also exist. There- fore, be sure all wiring is tightly connected. When connecting each power wire to the correspond- ing terminal, follow the instructions “How to connect wiring to the terminal”...

  • Page 100: Mounting

    3-8. Mounting (1) To install the indoor unit, mount the indoor unit onto the 2 tabs on the upper part of the rear plate. (2) Hold down the air discharge outlet and press the lower part of the indoor unit until it clicks to securely fasten to the 2 tabs on the lower part of the rear plate.

  • Page 101: Drain Hose

    I Left-side tubing (1) Lead the tubing and drain hose through the wall, Rear panel allowing sufficient length for connection. Then bend the tubing using a tube bender to make the Hole in wall attachment. (Fig. 38) (2) Switch the drain hose and drain cap. Wide tube Bent part Switching drain hose and drain cap...

  • Page 102: Multiple Switch On The Remote Control Unit Indoor Unit Types (Mcaf188R5I, Mcaf248R5I)

    To unmount indoor unit Press the 2 marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit and unmount. (Fig. 42) 3-9. Drain Hose a) The drain hose should be slanted downward to the outdoors.

  • Page 103: How To Test Run The Air Conditioner

    5. How to Test Run the Air Conditioner After turning on power to the air conditioner, use the remote controller and follow the steps below to con- duct the test run. (1) Set the remote controller in Test Run mode. (Fig.

  • Page 104: Remote Control Unit Installation Position

    6. Remote Control Unit Installation Position The remote control unit can be operated from either a non-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly, do not install the remote control unit in the following places: In direct sunlight Behind a curtain or other place where it is covered...

  • Page 105: Address Switch

    7. Address Switch 7-1. Address Setting of the Remote Control Unit The address can be set in order to prevent interfer- ence between remote controllers when two indoor units are installed near each other. The address is nor- mally set to “A.” To set a different address, it is neces- sary to change the address on the second remote controller.

  • Page 106: Connecting A Home Automation Device

    8. Connecting a Home Automation device The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used, connect it to this terminal. Also, refer to Section 9. ELECTRIC WIRING DIAGRAM in the outdoor unit installation manual. 9.
  • Page 107 R.D. 28 Reyrieux BP 131 - 01601 Trevoux CEDEX France Tel. (33) 04.74.00.92.92 - Fax (33) 04.74.00.42.00 http://www.technibel.com...

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