Introduction
EST3 System Operation Manual 1.15
Automatic general alarm (GA) timer
Some systems are designed to permit a short investigation period
between the detection of a fire and sending a general alarm to
the entire facility. The automatic general alarm timer is used to
initiate the general alarm after a predetermined time period, if no
action has been taken by the operator to prevent the general
alarm from being sent.
Time controls
Time controls provide for the automatic starting and stopping of
system events based on time and date. Time controls run in the
background and do not require any operator action.
Setting holidays
The system provides for special time controls, referred to as
holiday time controls. Holiday time controls supersede the
normal time controls on dates that are designated as holidays.
The list of dates that are defined as holidays is entered into the
system from the 3-LCD Display module.
Control/display module buttons
The buttons on a control/display module use one of three
available operating modes.
• Toggle - The state of the button changes each time the
button is pushed, i.e. “off” to “on” or “on” to “off.”
• Interlocked - Three adjacent toggle buttons that operate as a
group. Pushing any button in the group turns the output of
the other two buttons “off” and turns its own output “on.”
• Momentary - The button is “on” only while pressed by the
operator.
You may find multiple button modes on a single control/display
module. Consult your site-specific documentation for additional
information.
Toggle buttons
Toggle buttons are commonly used to control two state
operations such as on/off, open/close, speaker select, telephone
select, etc. The output of an “on” button remains “on” during
panel reset, and must be manually turned “off” when no longer
required.
Interlocked buttons
The interlocked mode is commonly used for hands-off auto
control of HVAC systems. An interlocked button in the “on”
To Next Page
Loading...
