TEL AFA4000/E - Page 27

AFA4000/E VAV Airflow Controller / p.27
3.7.3.3 Pushbutton III
Function
Description
Scrubber On / Off
• Pushbutton III set to Scrubber On / Off
• Scrubber On / Off Relay operates
Lights On / Off
• Pushbutton III set to Lights On / Off
• Lights On / Off Relay operates
Purge On / Off
• Pushbutton III set to Purge On / Off
• Emergency toggles on/off with other alarms in the status
window
• VAV output goes to Max, regardless of sash position
• Red Alarm LED Halo illuminated
• Audible alarm sounds - can be muted by pressing the Mute
pushbutton
• Purge On /Off Relay operates (if configured)
VAV Min/Run/Max or
VAV Min/Normal
functions:
Min
• Pushbutton III set to VAV Min/Run/Max and is set to Min
• Standby toggles on/off with other alarms in the status window
• VAV output goes to Min, regardless of sash position
• Audible alarm is muted
Run
• Pushbutton III set to VAV Min/Run/Max and is set to Run
• Airflow value displays in the status window
• VAV operation is active
• Airflow alarms are enabled
Max
(VAV Min/Run/Max
only)
• Pushbutton III set to VAV Min/Run/Max and is set to Max
• Emergency toggles on/off with other alarms in the status
window
• VAV output goes to Max, regardless of sash position
• Audible alarm sounds - can be muted by pressing the Mute
pushbutton