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Summary of Contents for Technibel MAFX 183
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Page 1: Service Manual
Condizionatore d’aria split - Split air conditioner • Climatiseur split Split-klimagerät - Acondicionador de aire split MAFX/GRFX -2 3 DC INVERTER SERVICE MANUAL... - Page 2 Model MAFX 183 MAFX 243 Indoor unit model MAFX183R5I MAFX243R5I Product Code Rated Voltage V～ 220-240 220-240 Rated Frequency Phases Power Supply Mode Indoor Indoor Min/Max. Voltage 198/264 198/264 Cooling Capacity 5275 6450 Cooling Capacity Btu/h 18000 22000 Min. Cooling Capacity...
- Page 3 Evaporator Pipe Diameter Ф7 Ф7 Evaporator Pipe Diameter inch Evaporator Row-fin Gap 2-1.4 2-1.5 Evaporator Row-fin Gap inch 2-1/18 2-1/17 Evaporator Coil Length (L×D×W) 715×25.4×304.8 765×25.4×342.9 Evaporator Coil Length (L×D×W) inch 28 1/7×1×12 30 1/8×1×13 1/2 Swing Motor Model MP28VB MP35XX Swing Motor Power Output Fuse Current...
- Page 4 Condenser Pipe Diameter inch Condenser Rows-fin Gap 2-1.4 2-1.4 Condenser Rows-fin Gap inch 2-1/18 2-1/18 Condenser Coil Length (L×D×W) 851×38.1×660 984×38.1×748 Condenser Coil Length (L×D×W) inch 33 5/8×1 1/2×26 38 3/4×1 1/2×29 4/9 Permissible Excessive Operating Permissible Excessive Operating Maximum Allowable Pressure Cooling Operation Ambient Temperature °C 18～43...
- Page 6 Cooling Heating 220V 220V • Conditions Indoor : DB26.7˚C/WB19.4˚C Outdoor : DB35˚C/WB23.9˚C Indoor air flow : Turbo Pipe length : 5m 230V 230V 240V • Conditions 240V Indoor : DB21.1˚C/WB15.6˚C Outdoor : DB8.33˚C/WB6.11˚C Indoor air flow : Turbo Pipe length : 5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps)
- Page 7 Cooling Heating Conditions Conditions Indoor: DB 26.7˚C/WB19.4˚C Indoor: DB 70˚C Indoor air flow : Turbo Indoor air flow : Turbo Pipe length: 5m. Pipe length: 5m. Outdoor temp. (˚C) Outdoor temp. (˚C)
- Page 8 Indoor side noise when blowing Outdoor side noise High Super High Middle Indoor Fan Motor Rotating Speed Compressor frequency/Hz...
- Page 9 Φ55 Φ55 Φ70 Φ70...
- Page 10 1000...
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Page 11: Indoor Unit
Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction exchanger (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Strainer COOLING HEATING... - Page 12 18 K - 24 K POWER AP1:MAIN BOARD...
- Page 13 Outdoor unit 18 K WARNING COMP. T-SENSOR OVC-COMP COM-INNER AC-L OFAN INDC1 INDC2 Outdoor unit 24 K...
- Page 26 Space to the ceiling 15cm Above Space to the wall 15cm Above 15cm Above Space to the wall Above Above Air outlet side Space to the floor The dimensions of the space necessary for proper installation of the unit includ e the minimum permissible distances to adjacent parts .
- Page 27 Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...
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Page 29: Outlet Pipe
Wall Wall Level meter Mark in the middle of it Space Space to the to the Open-end wrench wall wall above above Union nut 150mm 150mm Pipe Pipe joint Union nut Pipe Torque wrench Right Left Φ55/70mm Φ55/70mm Indoor pipe Rear piping hole Rear piping hole Insulating pipe... - Page 30 Screw Panel Wiring cover Indoor and outdoor power cord Indoor unit pipe Liquid pipe Band Drain hose connection wire sleeve Drain hose Connection pipe Band Indoor power cord Cooling and heating unit blue black brown yellow- green Connect to outdoor unit Wiring board ( 1 ) Wire clip...
- Page 31 External connection Gas side pipe electric wire Liquid side piping Gas side piping Tailing 2 Liquid side insulation Tailing 1 Piping insulation Finally wrap it Fig.3 Water drainage pipe with tape Left Right Left rear Fig.4 Right rear Fixing hook Mounting plate Mounting...
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Page 32: Bottom Frame
8.6.2 Manifold Valve Multimeter Manometer -76cmHg Hi handle Lo Handle Charging hose Low pressure valve Vacuum pump Fig.6 8.6.3 Drain-water hole Bottom frame Drain connecter Hose (available commercially, inner dia. 16mm) - Page 33 Fig.a Fig.b Air filter Healthy filter Fig.c...
- Page 34 Measure insulation resistance The breaker trips at once when it to ground to see if there is any is set to “ON”. leakage. Trip of breaker or blow of fuse The circuit or the part of the air conditioner has malfunction. They heat and break the insula- tion and lead to short circuit or The breaker trips in few minutes...
- Page 35 Improper set of temperature Adjust set temperature If cooling (heating) load is Check the forecasted load of cooling (heating) proper Check and fill the leakage, then The refrigerant has leakage or is vacuumize it and supplement the re- insufficient frigerant as required Leakage between the high pres- Replace the compressor sure and the low pressure in-...
- Page 36 The indoor fan motor is burned or breaks or has the heat protector Replace the fan motor or the defective part. malfunction. The built-in heat protector of the Replace the fan motor The fan does not motor breaks frequently because the run when it is set motor is abnormal.
- Page 37 The torque of the swing motor is not enough First, check whether the connection is Wrong connection The swing fan wrong. If no, replace the parts does not run. The controller is damaged(IC2003 is damaged, the swing relay can not close, etc) C o n t r o l l e r m a l f u n c t i o n ( I C 2 0 0 3 Change controller...
- Page 38 Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code 0.5s Display...
- Page 39 Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code 0.5s Display...
- Page 40 Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code 0.5s Display...
- Page 41 Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code 0.5s Display...
- Page 42 Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code 0.5s Display...
- Page 43 Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code 0.5s Display...
- Page 44 Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display (during Indicator has 3 kinds of display blinking, ON 0.5s and OFF status and during blinking, ON Dual-8 Malfunction A/C status Possible Causes 0.5s) 0.5s and OFF 0.5s Code Name Operation...
- Page 45 Turn on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor Fault with the voltage Replace the control testing circuit on Voltage higher than 200V? panel AP1 control panel AP1 Measure the AC voltage between terminal L and N on wiring board XT(power supply)
- Page 46 Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring machine has run for terminal L and N restore it to board XT is within a period of time?
- Page 47 Overheat and high temperature protection Normal protection, please operate it after the outdoor ambient temp- Is outdoor ambient temperature higher than 53? erature is normalized. 20 minutes after the complete unit is powered off. Improve the heat Is heat dissipation of the indoor unit dissipation environ- and outdoor unit abnormal? ment of the unit...
- Page 48 Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes? Does startup fail? Connect the wires as Are the wires for the compressor connected per the connection correctly? Is connection sequence right? diagram Replace the control panel AP1 If the fault is eliminated?
- Page 49 Out of step occurs in Out of step occurs once the operation unit is powered on. Check if the fan terminal Is stop time of the Replace the fan Is the outdoor fan working OFAN is connected correctly compressor longer than capacitor C1 normally? 3 minutes?
- Page 50 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the electronic expansion valve wires correctly connected correctly? Resistances between the first four pins close to the terminal hole and the fifth pin are almost the same, less than 100 ohm.
- Page 51 Start Check wiring of the reactor (L) of the outdoor unit and the PFC capacitor Replace it as per the Whether there is any wiring diagram and If the fault is eliminated? damage or reconnect the wires short-circuit? Remove the PFC capacitor and measure resistance between the two terminals.
- Page 52 Start Did the equipment operate normally before the failure occurs? Check the wiring of the indoor and outdoor units with reference to the wiring diagram Check wiring inside of the indoor and outdoor Is the connection right? units Correctly connect the corresponding wires for The AP1 voltage Are wires broken?
- Page 54 Start Measure voltage at the Test 10 position as shown in the diagram with a voltmeter Value jumping Measure voltage at the Test 15 position as shown in the diagram with a voltmeter Value jumping Fault with outdoor unit Measure voltage at the Test 11 position as shown in the diagram with a voltmeter...
- Page 58 Removal procedure of outdoor unit Steps Procedure 1. Remove top panel handle and Twist off the screws used for fixing the handle and v alve cover , pull the handle and v alve cover up ward to remove it. valve cover top panel Remove the 3 screws connecting the top panel with the front panel and the right side...
- Page 59 Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel. panel 3. Remove right side plate and left side plate right side plate Remove the scre ws connecting the right side plate with the chassis, the valve support and the electric box, and then remove the right side plate assy .
- Page 60 4. Remove fan motor and axial flow blade axial flow blade Remove the nuts fixing the blade and then remove the axial flow blade. fan motor fixing frame Remove the 4 tapping screws fixing the motor; disconnect the leading wire insert of the motor and then remove the motor.
- Page 61 4-way valv e assy 6.Remove soundproof sponge and Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully 4-way valv e assy Discharge the refrigerant completely;unsolder the pipelines connecting the compressor and the condenser assy,and then remove the 4-way valve assy.
- Page 62 8. Remov e Cut off Valve and Valve Support Remove the 2 bolts fixing the valve subassemblies. Unsolder the welding joint connecting the gas valve and the return air pipe. Remove the gas valve. (Note: When unsoldering the soldering joint, wrap the gas valve with wet cloth completely to avoid damage to the valve caused by high temperature.) Unsolder the welding joint connecting the liquid valve...
- Page 63 condenser sub-assy 11.Remove condenser sub-assy Remove the chassis sub-assy and condenser sub-assy. chassis sub-assy...
- Page 65 Pipe Pipe cutter Leaning Uneven Burr Pipe Shaper Downwards Union pipe Pipe Hard mold Expander Pipe Smooth surface Improper expanding damaged leaning crack uneven surface thickness The length is equal...
- Page 69 F-GAS REGULATION (EC) no. 842/2006 Non disperdere R410A nell'atmosfera: R410A è un gas fluorinato a effetto serra, coperto dal protocollo di Kyoto, con potenziale di riscaldamento globale (GWP) = 1975. Do not vent R410A into atmosphere: R410A is a fluorinated greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 1975.
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