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1. Ceiling Hanging Installation (Common for Indoor Ducts, Toilets & Equipment Rooms)

• Choose a stable ceiling position that can bear the weight of the fan, avoiding weak structural parts (e.g., ceiling keels with insufficient load-bearing capacity).
• Install the hanging bracket firmly on the ceiling using expansion bolts, ensuring the bracket is level and stable without looseness.
• Connect the fan to the hanging bracket with anti-vibration hooks or straps to reduce noise and vibration during operation.
• Align the fan’s air inlet and outlet with the pre-installed rectangular ducts, and use flexible connectors to connect them tightly to prevent air leakage.
• Check that the fan is hanging horizontally, with no tilting, and ensure there is enough space around the fan for maintenance.

2. Horizontal Duct Connection Installation (With Flexible Connector + Bracket)

• Install the fan bracket on a flat wall or equipment platform, ensuring the bracket is fixed firmly with bolts to avoid displacement during operation.
• Place the rectangular duct fan on the bracket and fix it with screws, ensuring the fan is level and stable.
• Use a flexible connector (e.g., canvas or rubber connector) to connect the fan’s inlet/outlet to the horizontal duct. The connector should be tight and not stretched excessively to prevent air leakage and reduce vibration transmission.
• Adjust the position of the fan and duct to ensure smooth air flow, without any obstruction at the connection.

3. Installation Structure Diagram (Hanging + Vibration Reduction + Duct Connection)

• Vibration Reduction: Use anti-vibration pads between the fan and bracket, and anti-vibration hooks for hanging installation, to minimize noise and vibration transmitted to the building structure.
• Duct Connection: Ensure the rectangular duct is aligned with the fan’s inlet/outlet, and seal the connection with sealant or tape to prevent air leakage, which may affect ventilation efficiency.
• Wiring: Connect the fan to the power supply according to the wiring diagram, ensuring correct connection of live, neutral and ground wires. It is recommended to install a switch and overload protection device for safe use.
• Post-Installation Check: After installation, turn on the fan to check for abnormal noise, vibration or air leakage. Adjust and fix any problems in time.