This document provides a service manual for the Haier Wall Mounted Type DC Inverter SUPER MATCH air conditioner, Model No. AS35S2SF1FA-CW. It includes safety cautions, features, specifications, piping diagrams, circuit board wiring diagrams, functions and control, dimensional drawings, center of gravity, service diagnosis, and wiring diagrams.
Safety Cautions:
The manual emphasizes safety precautions for repair work, classifying them into "Warning" and "Caution" categories. Warnings highlight potential dangers leading to death or serious injury if not followed, while Cautions address conditions that could lead to serious accidents. Key warnings include:
- Disconnecting the power cable plug before disassembling.
- Avoiding contact with electrically charged sections when power is supplied.
- Not touching discharging refrigerant gas to prevent frostbite.
- Releasing refrigerant gas completely in a well-ventilated area before disconnecting compressor pipes.
- Ventilating the area if refrigerant gas leaks, as it can generate toxic gases when contacting flames.
- Discharging capacitors completely before repair work to prevent electrical shock.
- Not starting or stopping the air conditioner by plugging/unplugging the power cable.
- Not repairing electrical components with wet hands.
- Not cleaning the air conditioner by splashing water.
- Ensuring proper grounding in humid or wet places.
- Turning off the power switch and unplugging the power cable before cleaning.
- Not tilting the unit when removing it to prevent water spills.
- Checking that the refrigerating cycle section has cooled sufficiently before working on it.
- Using a welder in a well-ventilated place to avoid oxygen deficiency.
Cautions regarding products after repair include:
- Using only specified parts and appropriate tools.
- Ensuring the new installation site has sufficient strength.
- Installing the product correctly using the provided standard installation frame.
- Installing the product securely in the window frame if applicable.
- Using an exclusive power circuit and following electrical standards.
- Using specified cables for indoor and outdoor unit connections and routing them properly.
- Ensuring the terminal cover is properly mounted.
- Not damaging or modifying the power cable.
- Not mixing air or gas other than the specified refrigerant (R-410A / R22).
- Locating and repairing refrigerant leaks before charging.
- Disposing of old coin batteries from the remote controller properly.
Usage Features:
The air conditioner offers several features for enhanced user experience:
- Super quiet: Lower noise operation condition.
- A-PAM DC inverter: Utilizes S-TYPE, S-PAM, and PHASE control technology for stable low-frequency operation, energy saving, and powerful high-frequency performance.
- -15°C Heating: Capable of natural heating even at -15°C.
- 10°C heating maintenance: Maintains a 10°C temperature.
- Comfortable sleep: Adjusts setting temperature and indoor noise for a more comfortable sleep mode.
- Super match: One outdoor unit can connect to two or more indoor units.
- DIY auto mode: Automatically adjusts to the last fixed operation mode.
- TURBO mode: Provides quick cooling or heating.
- Auto restart: Automatically returns to previous operating conditions after a power blackout.
- 24 hours timer: Allows setting on/off times.
- Integrative valve cover: Features an integrated valve cover.
- 2-way piping design: Pipes can exit from both left and right sides.
- Easy clean design: The panel is easy to wash, and airflow vents are detachable.
- Double 8 display: The display uses a Double 8 mode.
Functions and Control:
The manual details various operational modes and control specifications:
- Automatic operation: Determines the running mode (cooling or heating) based on room temperature and switches between modes after 15 minutes.
- Cooling operation mode:
- Temperature control range: 16°C to 30°C, with a ±1°C difference.
- Compressor and indoor fan operate based on room temperature relative to set temperature.
- Airflow speed control (high, medium, low) based on temperature difference.
- Manual speed setting available.
- Airgate location control.
- Defrosting function to prevent indoor heat exchanger frosting.
- Timing system on/off function.
- Dormant control function.
- Dehumidifying mode:
- Temperature control range: 16°C to 30°C, with a ±1°C difference.
- Compressor and indoor fan operate based on room temperature relative to set temperature, with high dehumidifying frequency for 10 minutes then low for 6 minutes.
- Airflow speed control (high, medium, low, light speed) based on temperature difference.
- Coil protection (synchronic overheating protection).
- Timing system on/off function.
- Dormant control function.
- Heating operation mode:
- Temperature control range: 16°C to 30°C, with a ±1°C difference.
- Automatic temperature compensation (4°C).
- Indoor fan control (manual or automatic speed) based on room temperature.
- Cold air proof operation.
- Residue heat sending after compressor stops.
- Defrosting function: indoor fan stops during outdoor defrosting.
- Strength operation: Enters a high-power mode.
- Mute operation: Reduces airflow speed for quieter operation (not available in dehumidifying or airflow-sending modes).
- Air refreshing (not chosen for this model): Would activate Nano-Aqua for ion sending.
- Timing: Allows setting 24-hour on/off timers.
- Dormant operation: An eight-hour mode that adjusts set temperature for comfort during sleep (e.g., raises 1°C per hour for cooling, lowers 2°C per hour for heating).
- Urgent on/off input: Pressing the urgency button for specific durations can activate automatic mode, test operation, or display last malfunction.
- Low load protection control: Stops the outdoor system if indoor coil temperature drops too low to prevent frosting.
- High load protection control: Stops the outdoor system if coil temperature exceeds 63°C for 2 minutes.
- Abnormal operation of indoor system: Reports conflicts if indoor and outdoor unit operations differ.
- Malfunction list resume: Displays malfunction codes for 10 seconds.
- Abnormality confirmation approaches: Details how to confirm issues with indoor temperature sensors, indoor heat interaction sensors, indoor malfunctions, and transmission abnormalities.
- Single indoor system operation: Allows the indoor unit to operate independently, ignoring outdoor unit signals.
- Power cut compensation: Stores the system's status in EEPROM to resume operation after a power cut.
- Test program: A diagnostic program for checking various components.
- Time cutting function: Speeds up CPU for main control by 60 times.
- Room card function: Allows control via a room card, with options for validity.
Important Technical Specifications:
- Nominal Distribution System Voltage: Phase: 1, Frequency: 50 Hz, Voltage: 230 V.
- Nominal Capacity and Nominal Input:
- Cooling Capacity rated: 3.5 kW (1.0-4.0), 11940 Btu/h (3410-13650).
- Heating Capacity rated: 4.2 kW (1.0-5.2), 14330 Btu/h (3410-17740).
- Power Consumption (Rated): Cooling: 0.87 kW, Heating: 1.10 kW.
- SEER/SCOP: 8.5 / 4.6.
- Annual energy consumption: Cooling: 144 KWh, Heating: 854 KWh.
- Moisture Removal: 1.6 x 10^-3 m³/h.
- Technical Specifications (Dimensions and Weight):
- Dimensions (HWD): 866 x 196 x 301 mm.
- Packaged Dimensions (HWD): 952 x 283 x 389 mm.
- Weight: 9.5 KG.
- Gross weight: 12.0 KG.
- Color: White.
- Technical Specifications (Sound Level):
- Sound pressure (Hi/Mid/Lo): 39/33/26 dB(A).
- Sound power (high): 55 dB(A).
- Technical Specifications (Parts):
- Fan: Cross flow fan, Motor output: 25 W, Air flow rate (high): 650 m³/h, Speed (Hi/Mid/Lo): 1200/1000/800 rpm.
- Heat exchanger: ML fin- & 7HI-HX tube, 3141.4 segment stagefitch.
- Air direction control: Right, Left, Horizontal, Downward.
- Air filter: Removable/Washable/Mildew Proof.
- Temperature control: Microcomputer Control.
- Remote controller model: 0010402886W.
- Piping length: 5m.
- Sensors list: Room sensor (detects room temperature), Pipe sensor (detects evaporator temperature).
Maintenance Features:
The service diagnosis section provides detailed troubleshooting steps for various error codes and abnormalities:
- Thermistor or Related Abnormality (E1, E2, LED1 flash 10-13 times): Checks for faulty connector connection, faulty thermistor, or faulty PCB. Includes steps to measure thermistor resistance.
- EEPROM abnormal (E4, F12): Checks for faulty EEPROM data or damaged EEPROM, recommending mainboard replacement.
- Indoor fan motor malfunction (E14): Checks connector connection, motor power supply voltage, motor control voltage, rotation command voltage, and rotation pulse input. Warns against pulling/inserting motor terminals while electrifying.
- Outdoor DC fan motor fault (LED1 flash 9 times): Checks fan running condition and EEPROM data.
- IPM protection (LED1 flash 2 times): Checks compressor running condition, overcurrent, compressor fault, and circuit component issues. Includes steps to test IPM module resistance.
- Over-current of the compressor (LED1 flash 3, 24, or 25 times): Checks compressor current, IPM module, compressor, and power supply voltage.
- Communication fault between IPM and outdoor PCB (LED1 flash 4 times): Checks IPM module and outdoor PCB for communication faults, wiring issues, and recommends reconnecting or replacing linking cables.
- Power Supply Over or under voltage fault (LED1 flash 6 times): Checks power supply voltage and IPM module.
- Overheat Protection For Discharge Temperature (LED1 flash 8 times): Checks discharge pipe thermistor, electronic expansion valve, and heat exchanger.
- Loss of synchronism detection (LED1 flash 18 or 19 times): Checks compressor wiring and connection.
The manual also includes detailed diagrams for piping, printed circuit board connectors, and overall wiring for the indoor unit. Dimensional drawings and the center of gravity are provided for proper installation and handling.
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