6CI
APE03
Pag.
4
Rev. 1-12
DESCRIPTION OF SYSTEM
The purpose of this safety system is to allow a person trapped inside the cold room to
activate an acoustic/luminous alarm located outside the room and so request help.
The system has been designed to function even in the event of a temporary mains power
failure: in this event the system is powered by a buffer battery housed in the external unit.
The system consists of the following parts:
•
Emergency pushbutton to be fitted inside the cold room.
Consists of a luminous mushroom-type button with N.C. contact.
The pushbutton is permanently lit by LEDs so that it can be located in the dark.
•
Acoustic/visual alarm control unit to be fitted outside the cold room.
Features a siren and flashing light and a buffer battery to provide power in the event
of a black-out.
There is also a clean contact (closed with alarm on) that can be used to activate
other devices such as a remote warning dialler or additional sirens.
Connection between the two devices - consisting of a lead laid by the installer as per the
wiring diagram - is ensured by the system safety logic. Should the lead be cut or
disconnected the alarm will be activated immediately.
1.7
CHAP. 1 - Introduction
- ENG -
USE AND MAINTENANCE MANUAL