AFA4000/E VAV Airflow Controller / p.5
1. Introduction
The TEL AFA4000 is a system for controlling and monitoring airflow in industrial and educational
fume cupboards and biological safety cabinets for user safety. The AFA4000 airflow monitor and
controller is available with optional Auto Sash integration. Using the Auto Sash with the
AFA4000 controller means you will no longer need a separate Auto Sash keypad.
The AFA4000 user interface is full colour, intuitive and is easy to navigate. It features a simple
two-step calibration process with on-screen prompts to guide end users. The unrivalled
reliability of the AFA4000 means that once calibrated, you will not need to re-calibrate in the
future. The AFA4000 has in-built communications as standard and it can be used with either
Modbus or BACnet protocol.
Featuring an innovative hot wire sensor, the AFA4000 has no inherent drift meaning that the
sensor will provide stable readings over many years of operation ensuring reliability and safety.
The AFA4000 has full alarm diagnostics and test functionality, a sixty-minute timeline of
environmental conditions and field-upgradable software, with password protected menus and
diagnostic menus to aid installation and commissioning.
This manual covers the AFA4000/E and AFA4000/E/AS VAV airflow controllers.
1.1 Features
• Full colour 3.5” LCD Display for continuous velocity reading in m/sec
• Auto Sash integration
• BACnet and Modbus on board
• Velocity bar graph or fault timeline over the last 60 minutes
• Visual & audible alarms
• Three digital inputs and three digital outputs
• Diagnostics Menu
• Bespoke overlay designs, with a choice of two, coloured cases
• Bespoke software options tailored to customer requirements
• Touch sensitive buttons
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