AFA4000/E VAV Airflow Controller / p.30
When input configured as Emergency is activated:
• Red Alarm LED Halo illuminated
• Emergency toggles on /off in the status window (when
configured)
• Audible alarm sounds. Can be muted by pressing the Mute
pushbutton
• Emergency alarm relay operates (when configured)
• Unit is driven to the VAV MAX operating position
When input configured as Sash High is activated:
• Amber Alarm LED Halo illuminated
• Sash High toggles on / off in the status window if sash height >
calibrated position
• Audible alarm sounds. Can be muted by pressing the Mute
pushbutton
• Sash High relay operates (when configured)
• Alarm re-activates after time delay when repeat time enabled
When input configured as High/Low is activated:
• Display Icon shows ↑ (High) or ↓ (Low)
• High / Low relay operates (when configured)
• This function is designed for two-speed fan operation or two-
position damper operation switched using a micro switch or
proximity switch activated at a given position on the sash.
When the input configured as Close Sash is activated:
• Red Alarm LED Halo illuminated
• Close Sash - toggles on/off in the status window
• Audible alarm sounds (after pre-set time)
• Audible can be muted by pressing the Mute pushbutton. This
silences the alarm (when configured)
• Audible alarm re-sounds after time delay when repeat time
enabled
• Reset when the sash is lowered to closed position and the input is
de-activated or an operator is present
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