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Summary of Contents for Technibel MAFX 96R5I
- Page 1 1. Summary Indoor Unit: Remote Controller: YB1FB7 Service Manual Models:MAFX 96R5I MAFX126R5I MAFX186R5I MAFX246R5I...
- Page 2 Service Manual 2. Specifications 2.1 Specification Sheet Model MAFX126R5I MAFX96R5I Product Code CB435N00400 CB435N00100 Rated Voltage 220-240 220-240 Rated Frequency Phases Cooling Capacity Heating Capacity 3.67 Air Flow Volume (SH/H/M/L) 560/490/430/330 660/540/460/330 Dehumidifying Volume Fan Type Cross-flow Cross-flow Fan Diameter-height Ф98X580 Ф98X633.5 Fan Motor Speed (SH/H/M/L) Cool...
- Page 3 Service Manual Model MAFX186R5I MAFX246R5I Product Code CB435N00200 CB435N00300 Rated Voltage 220-240 220-240 Rated Frequency Phases Cooling Capacity 5.13 Heating Capacity 5.27 7.25 Air Flow Volume (SH/H/M/L) 800/720/610/520 1150/1000/900/800 Dehumidifying Volume Fan Type Cross-flow Cross-flow Fan Diameter-height Ф106X706 Φ108X830 Fan Motor Speed (SH/H/M/L) Cool 1230/1130/1030/800 1250/1000/900/800 Fan Motor Speed (SH/H/M/L) Heat...
- Page 4 Service Manual 2.2 Noise Criteria Curve Tables for Both Models Middle High Super High Indoor Fan Motor Rotating Speed Technical Information...
- Page 5 Service Manual 3. Outline Dimension Diagram 168.5 159.5 Φ55 Φ55 Ф55 Ф55 Ф55 Ф55 Unit:mm Model Ф70 Ф70 1078 Technical Information...
- Page 6 Service Manual 4. Refrigerant System Diagram outdoor indoor filter A heat exchanger filter outdoor heat exchanger 4-way valve B heat exchanger filter high pressure switch discharge silencer C heat exchanger discharge temperature sensor filter D heat exchanger gas -liquid separator filter A1:A unit electronic expansion valve B1:B-unit electronic expansion valve C1:C-unit electronic expansion valve D1:D-unit electronic expansion valve...
- Page 7 Service Manual 5. Electrical Part 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. Technical Information...
- Page 8 Service Manual ● Indoor Unit MAFX_96-126-186-246_R5I 6363222001 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Technical Information...
- Page 9 Service Manual 5.2 PCB Printed Diagram Top view Name Live wire Communication port Fuse Neutral wire for healthy function (only for the mode with health function) Neutral wire Needle stand for motor interface Live wire for health function (only for the model with this function) Jumper cap Auto button...
- Page 10 Service Manual 6. Function and Control 6.1 Remote Controller Introduction ON/OFF button ▲ button ▼ button MODE FAN button SWING button I FEEL button HEALTH/AIR button SLEEP button TEMP button TIMER ON button CLOCK button TIMER OFF button TURBO button X-FAN/LIGHT button Introduction for icons on display screen Set fan speed...
- Page 11 Service Manual 1. ON/OFF button Press this button can turn on or turn off the air conditioner. After turning on the air conditioner, operation indicator " "on indoor unit’s display is ON (green indicator. The colour is different for different models), and indoor unit will give out a sound. 2.
- Page 12 Service Manual 7. SLEEP button Under COOL, HEAT or DRY mode, press this button to start up sleep function. " " icon is displayed on remote controller. Press this button again to cancel sleep function and " " icon will disappear. 8.
- Page 13 Service Manual Function introduction for combination buttons 1. Energy-saving function Under cooling mode, press "TEMP" and " CLOCK" buttons simultaneously to start up or turn off energy-saving function. When energy-saving function is started up, "SE" will be shown on remote controller, and air conditioner will adjust the set temperature automatically according to factory setting to reach to the best energy-saving effect.
- Page 14 Service Manual 6.2 Brief Description of Modes and Functions 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 16~30 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status.
- Page 15 Service Manual (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 16 C.
- Page 16 Service Manual Mode relationship table for mode shock: Mode Indoor unit with Operation status after mode shock Indoor unit A Indoor unit B Indoor unit A Indoor unit B mode shock Cooling/drying heating Indoor unit B Cooling/drying Indoor fan stops operation Heating Cooling, drying, fan Indoor unit B Heating...
- Page 17 Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
- Page 18 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
- Page 19 Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance...
- Page 20 Service Manual Installation procedures 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...
- Page 21 Service Manual 8.4 Electric Connection Requirement 8.2 Installation Parts-checking 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor power supply circuit and air switch.
- Page 22 Wall Wall Level meter Mark in the middle of it Space Space to the to the Service Manual wall wall above above 150mm 150mm 3. Install Wall-mounting Frame 5. Connect the Pipe of Indoor Unit (1) Choose the position of piping hole according to the direction Right Left (1) Aim the pipe joint at the corresponding bellmouth.(As show...
- Page 23 Service Manual 7. Connect Wire of Indoor Unit Indoor and outdoor power cord (1) Open the panel, remove the screw on the wiring cover and Indoor unit then take down the cover.(As show in Fig.11) pipe screw panel Fig.14 Liquid pipe Band Drain hose...
- Page 24 Service Manual 8.8 Check after Installation and Test Operation 1. Check after Installation Check according to the following requirement after finishing installation. Items to be checked Possible malfunction Has the unit been installed firmly? The unit may drop, shake or emit noise. Have you done the refrigerant leakage It may cause insufficient cooling (heating) capacity.
- Page 25 Service Manual 9. Maintenance 9.1 Error Code 1. Malfunction display requirement When there are several malfunctions, they will be displayed circularly. 2. Malfunction display method (1) Hardware malfunction: immediate display; refer to “error code list”; (2) Operation state: immediate display; refer to “error code list”; (3) Other malfunctions: it is displayed after the compressor stops for 200s;...
- Page 26 Service Manual Recovery refrigerant mode operation status blink once blink once Startup failure blink 11 times Compressor exhaust high temperature protection blink 4 times Anti-high temperature protection blink 8 times AC over-current protection blink 5 times It can be displayed Over compressor phase current protection blink 15 times through remote...
- Page 27 Service Manual 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ● Is the temperature sensor broken? ●...
- Page 28 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor can't operate? ●...
- Page 29 Service Manual 3. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
- Page 30 Service Manual 4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: ● Instant energization afte de-energization while the capacitordischarges slowly? ● The zero-cross detectioncircuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Turn power off for 1minute,the turn...
- Page 31 Service Manual 5. Malfunction of Overcurrent Protection E5 Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
- Page 32 Service Manual 6. High temperature and overload protection (AP1 below means control board of outdoor unit) E8 Main detection points: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan are running normally; ●...
- Page 33 Service Manual 7. Overload Protection Compressor H3 Main detection points: ● Heat exchange of unit is not good? (heat exchanger is dirty and unit radiating environment is bad) ● Fan motor is not working? ● Too much load of the system causes high temperature of compressor after working for a long time? ●...
- Page 34 Service Manual 9.2 Maintenance Method for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor After energization, operation indicator isn’t bright wait for power recovery.
- Page 35 Service Manual 4. ODU Fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...
- Page 36 Service Manual 10. Exploded View and Parts List 09/12K The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 37 Service Manual Part Code Description MAFX126R5I MAFX96R5I Product Code CB435N00400 CB435N00100 Front Panel Assy 20000300050 20000300049 Display Board 30565281 30565281 Front Case Assy 00000200040 00000200045 Helicoid Tongue 26112508 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 20162010 00000100093 Drainage Hose 0523001408 05230014 Ring of Bearing...
- Page 38 Service Manual Part Code Description Product Code Front Panel Assy Display Board Front Case Assy Helicoid Tongue Left Axile Bush Rear Case assy Drainage Hose Ring of Bearing O-Gasket sub-assy of Bearing Evaporator Support Cold Plasma Generator Evaporator Assy Wall Mounting Frame Cross Flow Fan Fan Motor Connecting pipe clamp...
- Page 39 Service Manual The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 40 Service Manual Part Code Description MAFX186R5I Product Code CB435N00200 Decorative Strip Front Panel 20000300040 Display Board 30565278 Filter Sub-Assy 11122089 Decorative Board (Left) Front Case 2002248401 Guide Louver 1051276501 Axile Bush 10542036 Air Louver 10512732 Helicoid tongue 26112512 Left Axile Bush 10512037 Rear Case assy 22202571...
- Page 41 Service Manual The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 42 Service Manual Part Code Description MAFX246R5I Product Code CB435N00300 Front Panel Assy 20000300048 Filter Sub-Assy 11012007 Screw Cover 2425245301 Front Case Assy 00000200043 Air Louver(Manual) 10512737 Helicoid Tongue 26112513 Left Axile Bush 10512037 Rear Case assy 22202570 Rubber Plug (Water Tray) 76712012 Ring of Bearing 26152025...
- Page 43 Service Manual 11. Removal Procedure Caution: discharge the refrigerant completely before removal. 09/12K Step Procedure 1.Remove filter assy Front panel Open the front panel. Push the left and right filters to make them break away from the groove on the front case. Then Front remove the left and right filters one by case...
- Page 44 Service Manual Step Procedure 4. Remove electric box cover 2 Screw Electric box cover 2 Remove the screws on the electric box cover 2 to remove the electric box cover 2. 5. Remove front case sub-assy Screws Remove the screws fixing front case. Note: 1.Open the screw caps before removing the screws around the air outlet.
- Page 45 Service Manual Step Procedure 7. Remove electric box assy Screw Loosen the connection clasps between shield cover of electric box sub-assy and Clasps electric box, and then remove the shield cover of electric box sub-assy. Remove the screw fixing electric box assy . Electric box Shield cover of electric box sub-assy...
- Page 46 Service Manual Step Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. Circlip The pulling method is as below: Holder 1.Remove the soft sheath for some terminals at first, hold the circlip and then pull out the terminals.
- Page 47 Service Manual Step Procedure 9. Remove motor and cross flow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross flow Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift Holder the motor and cross flow blade upwards sub-assy...
- Page 48 Service Manual 18/24K 1. Remove filter as s y Front panel Open the front panel. Push the left and right filters to make them break away from the groove on the front case. Then remove the left Front and right filters one by one. case Left filter Right filter...
- Page 49 Service Manual Loosen the connection clasps between front case sub-assy and bottom case. Lift up the front case sub-assy and take it out. S wing motor Screw off the screws that are locking the swing motor and take the motor off. Installation and Maintenance...
- Page 50 Service Manual Indoor tube temperature s ensor Cut off the wire binder and pull out the indoor tube temperature sensor. Screw off one grounding screw. Main Remove the wiring terminals of motor and board stepping motor. Remove the electric box assy. G rounding Screw off the screws that are locking each s crew...
- Page 51 Service Manual G roove R ear case as s y First remove the left side of evaporator from the groove on the rear case assy. Then remove the right side from the clasp on the C l a sp rear case assy. Installation and Maintenance...
- Page 52 Service Manual Installation and Maintenance...
- Page 53 Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉）...
- Page 54 Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...
- Page 55 Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009...
- Page 56 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2...
- Page 57 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08 580.6...
- Page 58 JF00302510 Technibel is a TRADE mark of NIBE ENERGY SYSTEMS FRANCE, used under licence. IMPORTED & DISTRIBUTED BY ARGOCLIMA SPA - Via Alfeno Varo, 35 - Alfianello (BS) Italy...
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