World Leaders in Ultra-Pure Heating
Revision 10
www.heateflex.com
01/17/13
405 E. Santa Clara St.
Arcadia, CA 91006-7218
Tel: (626) 599-8566 Fax: (626) 599-9567
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3.2.1 Main Menu
The Main Menu consists of six screen switches for the parent screen in each area of the control
system; System Status, Recalibration, Temperature Control, Alarm Menu, and Alarm History,
and External Flow. By touching one of these buttons, you will move to the respective screen.
In addition, the date and time set up buttons are located on this screen (see Section 3.2.6 for
more information).
Please note that an alarm will automatically trigger upon initial start up of the unit. The
“ALARM RESET” button must be pressed prior to the operation of the unit.
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3.2.2 System Status
This screen displays the current status of the unit and allows manual overrides of the Auto-
Isolation and Auto-Shutdown valves. It has an audio-alarm defeat (“ENABLE AUDIO” /
“DISABLE AUDIO”) and an alarm reset function (“ALARM RESET”).
Displayed on the screen are the D.I. Temperature Set Point, D.I. Process Temperature,
Shellside (Steam) Temperature, D.I. Flow Rate, D.I. Process Pressure, and Actuator Position.
The current status of the Auto-Shutdown System, Auto-Isolation System, Pressure Relief
Venting Systems, and the Vessel Flooding system are also indicated on this screen.
Two sets of touch keys allow the Auto-Isolation and Auto-Shutdown Valves to be set in the
Auto, Flow or Bypass and Auto, Manual-Open or Manual-Closed position respectively. Upon
initial power up of the equipment, the Auto-Isolation valves are automatically set in the
Manual-Bypass position and the Auto-Shutdown Valve (Steam valve) is set in the Manual-
Closed position. These switches will illuminate denoting which position is currently active.
The “operational password” must be entered in order to activate these switches and be
operated.
The “ALARM RESET” button clears any alarm conditions that are present and will reset the
Auto-Shutdown mode or Auto-Isolation mode back into the “Auto” mode provided that an
alarm condition has occurred triggering those systems. Please note that when the unit is first
powered on the “ALARM RESET” button must be pressed prior to the operation of the unit.
To enable or disable the alarm audio press the “ENABLE AUDIO” or the “DISABLE
AUDIO” buttons respectively.
Three other switches allow for convenient screen changes: “MAIN MENU”,
“RECALIBRATION”, and “ALARM MENU”. The “ALARM MENU” button will illuminate
when any alarm condition is present.
