FFU
FFU
FFU

High-Efficiency Fan Filter Unit with Smart Control Interface

Functional Features:

  1. FFU Dimensions (mm):
    Non-standard/customizable sizes available; noise level ranges from 52 to 56 dB.

  2. Modular Design:
    The FFU housing and HEPA filter are designed as separate modules, making installation and filter replacement more convenient.

  3. High-Quality Fan:
    Equipped with either an imported centrifugal fan or a domestic aluminum impeller centrifugal fan, with a service life exceeding 50,000 hours.

  4. Advanced Features:
    Energy-saving, computer-controlled centralized management, stable operation, low noise, and digital adjustment capabilities.

  5. Uniform Airflow:
    The FFU uses a unique air duct design to ensure uniform air velocity across the entire air outlet surface at 0.45 m/s.

  6. Material Options:
    The housing is available in mirror-finished stainless steel, aluminized zinc plate, or cold-rolled steel with electrostatic powder coating, offering a sleek and attractive appearance.

  7. Strict Quality Control:
    Each FFU unit is individually tested with a laser particle counter before leaving the factory, in accordance with U.S. Federal Standard 209E, ensuring high product quality.

  8. Wide Application:
    Suitable for cleanrooms of Class 10 to Class 10,000, and ideal for centralized system control.

  9. Industry Use:
    Perfect for semiconductor, electronics, flat panel display, hard disk drive manufacturing, as well as optics, biotechnology, and other industries requiring strict airborne contamination control.
    With its unique advantages and competitive pricing, FFU quickly gains market traction.

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Description

FFU Intelligent Distributed Control System

The FFU intelligent distributed control system is mainly designed for large-scale cleanrooms. It enables both convenient on-site distributed control and centralized unified management. The system allows flexible control of FFU fan start/stop functions and speed adjustment. By using zone-based control technology, it overcomes the limitations of RS485 driver capacity and can manage up to several thousand fan units.

The control system consists of the following three components:

  • FFU Computer Management System (Monitoring System)

  • FFU Control Host System

  • On-Site FFU Control Units

Computer Monitoring System

The computer is equipped with professional FFU monitoring software. The software includes a main interface and sub-interfaces:

  • The main interface displays the FFU system distribution map and zone diagram. It allows direct control of zone power (on/off).

  • By clicking a zone on the main interface, users can access the sub-interface, where they can monitor the status of each FFU and control each individual FFU control unit.

FFU Control Host System

The FFU main controller is the core of the centralized control system. It features an LCD display and allows remote monitoring and adjustment of FFUs. The host controller can set and manage each FFU control unit and send/receive signals to/from the computer.

Even if the system is not configured with a computer or the computer is powered off, the FFU control host can independently complete all system configuration and control tasks.

Note: Non-standard customization is available upon request.

On-Site FFU Control Unit

Each FFU control unit uses a microcontroller as its core processor and serves as the terminal controller for a single FFU. Each unit module controls one FFU and supports the following functions:

  1. Start/stop and speed control of each FFU via the host controller

  2. Remote centralized control and fault diagnosis

  3. Each unit has a configurable ID address

  4. Overload and no-load alarm functions — the control unit issues an alert if overload or no-load conditions are detected

1. Main Technical Specifications

  • Power supply: 220V AC

  • Three-tap fan support

  • Communication interface: RS485 (communication protocol available in appendix)

2. Operation Instructions

  1. Power On/Off Button (Only valid for local control when ID = 00)

    • Follow wiring diagram (Diagram 2) to ensure proper connections before powering on.

    • Press the button to power on; press again to power off.

  2. Increase Speed Button

    • When the unit is running, press this button to increase fan speed.

  3. Decrease Speed Button

    • When the fan is running, press this button to reduce fan speed.

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