Ampac EV3000 User Manual

Page 4
EV3000 INSTALLATION & COMMISSIONING
5 System Description
5.1 Occupant Warning System
The OWS subdivides the building into evacuation zones. Each evacuation zone has one or more
amplifiers and a number of associated speakers. In sections of a building where the background
noise is high, visual warning devices may be used in addition to speakers. Each evacuation zone
amplifier may be switched by the system to one of four audio channels. These channels are PA,
Alert signal, Evacuation signal and Background music (BGM). The BGM channel to each amplifier
can be configured on site by jumper links to one of the following sources:
 Background music 1
 Background music 2
 Silence
During non-emergency situations the evacuation zones can have the PA channel or BGM channel
switched to allow the OWS to be used for PA facilities or background music. The background music
is disabled;
 in an emergency situation,
 if the OWS is manually operated; or
 if the mains power fails.
The signal generator module (SGM) is responsible for generating the alert and evacuation signals as
well as the alert and evacuation verbal messages.
The OWS has two possible types of alarm signal inputs to indicate that an emergency condition is
occurring in the building. These are:
 Emergency Alarm Initiating Devices (EAID’s) i.e. manual call points
 Fire Alarm Control Panel (FACP)
These inputs are grouped according to the building evacuation zones. Any number of EAID's and
FACP’s inputs may be assigned to any one building evacuation zones or group of zones.
When an input, i.e. EAID or FACP initiates an alarm signal the OWS, if in automatic mode, will
initiate a preset evacuation sequence. The evacuation sequence will sound the Alert / Evac signals
to the evacuation zones within the building and activating the visual warning devices (if installed)
according to the pre-programmed evacuation sequence. The manual override will cease the pre-
programmed evacuation sequence, and output Alert / Evac signals to evacuation zones as dictated
via the OWS panel control switches. If the keyswitch is placed back into the Auto position after an
evacuation sequence is stopped by use of the keyswitch and no keys were pressed in Manual then
the evacuation sequence will be discontinued.
The OWS provides full system status and fault indication facilities.
If the OWS has more than one ECP, one ECP is referred to as the Master Emergency Control Panel
(MECP) and the remaining ECP’s are referred to as Secondary Emergency Control Panels
(SECP’s).
5.2 Occupant Intercommunication System
The OIS provides an independent communication system between the controlling ECP and a
Warden Intercommunication Point (WIP). OIS features are:
 The controlling ECP can call individual WIP’s or enter an All Call mode, where all the WIP’s are
called simultaneously.
 The controlling ECP and up to 5 WIP’s can communicate in a conference mode.
 Calls to an individual WIP's have full duplex communication.
 All Call, communication is half duplex from the controlling ECP.
 Any WIP can call the controlling ECP the call is answered at the controlling ECP at the
operators’ discretion.

Ampac EV3000 Specifications

General

Brand	Ampac
Model	EV3000
Category	Control Panel
Language	English