Related Manuals for Technibel MTA8FIA0R5IAA
Summary of Contents for Technibel MTA8FIA0R5IAA
- Page 1 TECHNICAL DATA & SERVICE MANUAL INDOOR UNIT: MTA8FIA0R5IAA MTA8FBIA0R5IAA SPLIT SYSTEM AIR CONDITIONER Model No. Product Code No. MTA8FIA0R5IAA 38.7104.063 MTA8FBIA0R5IAA 38.7104.064 0.8180.588.01 10/2012...
- 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.
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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 System operation control 5-2 Cool Mode Operation 5-3 Heat Mode Operation 5-4 Auto Mode Operation... -
Page 4: Specifications
1. SPECIFICATIONS 1-1 Unit Specifications 220 - 240 V ~ 50 Hz Power source 230 V - 50 Hz Voltage rating Cooling Heating Performance See catalogue with the requested matching Capacity Air circulation (High) m³/h Features Microprocessor/ I.C. thermostat Controls/Temperature controls Control unit Wireless remote control unit Timer... -
Page 5: Other Component Specifications
1-2 Major Component Specifications Controller PCB SAC DCI IDU Part No. Microprocessor Controls 250 V - 3,15 A Control circuit fuse SAC W-REM V3 Remote Control Unit Fan & Fan Motor Cross - flow Type Q'ty ……. Dia. and lenght 1…. - Page 6 1-3 Other Component Specifications 0028TRA008 Trasformer (TR) AC 230 V, 50 Hz Rating Primary 13 V - 6VA Secondary Capacity (at 25°C) Primary: - Coil resistance Secondary: - Thermal cut-off temp. 120°C NTC-THERMISTOR Thermistor ( Coil sensor ) 10 at 25 °C Resistance k...
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Page 7: Dimensional Data
2. DIMENSIONAL DATA... -
Page 8: Performance Data
3. PERFORMANCE DATA 3-1 Air Throw Distance Chart Cooling Room air temp. : 27°C Fan speed High Horizontal distance (m) : Flap angle 0° , : Axis air velocity 0° : Flap angle 30°, : Axis air velocity 30° Heating Room air temp. -
Page 9: Electrical Data
4. ELECTRICAL DATA 4-1 Electric Wiring Diagrams... -
Page 10: Function
5.FUNCTION 5-1 System operation control The inputs to the systems come from indoor and outdoor sensors. The outdoor unit is the system MASTER while the indoor one is the SLAVE. Communication between units is made with a 2 poles RS485 bus The indoor units receives the user input (fan speed, flap position etc) through remote controller which sends signal every time a button is pressed and in any case, automatically, every 5 minutes. -
Page 11: Cool Mode Operation
5-2 Cool Mode Operation In Cooling Mode, the operation of the compressor (CM), Outdoor Fan (FMO) and Indoor Fan (FMI) are determined by: 1) the difference between the room air temperature (RAT) and the set point temperature (SPT) 2) the protection level at which the system is operating 3) the thermal load in the room NOTES In addition to the temperature difference of above, the operation of the main components (CM, FMO,... -
Page 12: Auto Mode Operation
5-4 Auto Mode Operation In Auto Mode, the unit switches automatically between the Auto Cooling and Auto Heating in order to maintain the room temperature (RAT) at the prescribed set point (SPT). The switching between the two modes is according to the above graph and following table COOLING --->... -
Page 13: Dry Mode Operation
5-5 Dry Mode Operation Dry operation remove moisture from indoor air running, in cooling mode, at a low level without reducing the ambient temperature. This is done cycling ON and OFF indoor and outdoor units according to below. ROOM DRY LEVEL TEMP Operation according to COOLING mode ≥... -
Page 14: Forced-Made
5-8 Forced Mode In this mode the system operates (COOLING or HEATING mode – fixed settings) or is switched off by means of the MODE button on the indoor unit control board. The operation modes can be selected pressing the button in a cyclic way (OFF COOL HEAT OFF…). The settings are: COOLING mode SET POINT temperature = 25°C FAN SPEED = HIGH... -
Page 15: Protection Operation Outdoor Unit
5-10 Protection operations on outdoor unit 5-10.1 Overheating During cooling operation as soon as the outdoor coil temperature (OCT) increases, compressor speed is reduced in order to avoid heat exchanger overheating. System stops compressor operation when OCT reaches 60 °C 5-10.2 Compressor discharge temperature During operation, as soon as the discharge temperature increases, (CDT) compressor speed is reduced in order to avoid overheating of the motor. -
Page 16: Defrost
5-11 Defrost 5.11.2 Defrost The defrost process is controlled by a detection algorithm designed in order to mantain optimal utilization of the heat pump capacity especially during negative outdoor temperature conditions. System condition: • Compressor speed fixed • Expansion valve opening fixed •... -
Page 17: Night Function
5-14 NIGHT Function When this setting is active indoor fan speed is automatically reduced in order to allow low noise operation. Temperature control acts in the same way as NORMAL MODE but after 60 minutes of operation the air conditioner modifies automatically the set-point temperature according to the following: •COOLING/DRY: +1°C •HEATING: - 2°C... -
Page 18: Diagnostic
5-17 Diagnostic With this feature is possible to have a visual signal that a trouble is occurring. This mode is always active and the signalling is made through the display board LEDS . In case of no troubles the LEDS status follows its normal function. The detected troubles are showed to the user/technician using the 3 leds of the indoor unit receiver and the 5 leds on the outdoor pcb. -
Page 19: Indoor Unit Jumpers Configuration
5-18 INDOOR UNIT JUMPERS CONFIGURATION Unit is shipped with jumpers set according to the following table: JUMPER STATUS open open... -
Page 20: Outdoor Unit Jumpers Configuration
5-19 OUTDOOR UNIT JUMPERS CONFIGURATION Unit is shipped with jumpers set according to the following table: models: GR9FI40R5IAA JUMPER STATUS open closed open... -
Page 21: Contacts For Building Automation
5-20 CONTACTS FOR BUILDING AUTOMATION 5-20.1 INPUT CONTACT (J11 - green) The status of this input affects system operation according to the following: Contact OPEN : system does not operate (always OFF) – inputs from wireless remote controller are not processed Contact CLOSED: system operates in the normal way according to the inputs coming from wireless remote controller 5-20.2 OUTPUT CONTACT (J20) This connector is directly tied to the contact (normally open) of a power relay which activates every time the following alarm... -
Page 22: Maintenance
5-21 MAINTENANCE 5-21.1 Changing the Address of the Air Conditioner In case of more than one air conditioner operating in the same room, it may be necessary to assign an address to each unit in order to avoid operation conflicts. Address is set acting on the dip-switches located on the indoor PCB and on the remote controller. -
Page 23: Troubleshooting
TROUBLESHOOTING 6-1 CHECK BEFORE AND AFTER «TROUBLESHOOTING» (A) Check power supply wiring. • Check the power supply wires are correctly connected. (B) Check power supply. • Check that voltage is in specified range (±10% of the rating). • Check that power is being supplied. •... -
Page 24: System Does Not Run
6-3 SYSTEM DOES NOT RUN. - Page 25 6-3 SYSTEM DOES NOT RUN.
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Page 26: Outdoor Unit Does Not Run And No Fault Is Displayed
6-4 OUTDOOR UNIT DOES NOT RUN AND NO FAULT IS DISPLAYED 6-5 ONLY OUTDOOR UNIT IS OFF... -
Page 27: Fault On Outdoor Unit
6-6 OUTDOOR UNIT: FAULT SIGNALING IN OUTDOOR UNIT THERE IS ONE LED BLINKING AT LEAST For the meanings of the faults, see paragraph 5.17 FAULT TEMPERATURE COMPRESSOR/FAN ON THE COMMUNICATION SENSOR OVERCURRENT/ PFC FAULT INDOOR ERROR DAMAGED OVERTEMPERATURE UNIT Check sensor See section 6.3 connection Measure the... -
Page 28: Air Conditioner Operates, But Abnormalities Are Observed
6-7 AIR CONDITIONER OPERATES, BUT ABNORMALITIES ARE OBSERVED. - Page 29 3 - CHECK “MODE BUTTON” OPERATION ON THE UNIT Push the mode button The unit does not run PCB assy is defective...
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Page 30: Noise Problem
6-8 NOISY PROBLEM Pagina 30... -
Page 31: Checking Eletrical Components
7) CHECKING ELETRICAL COMPONENTS... - Page 33 0.8180.588.01 10/2012 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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