b) Disconnection switches
These switches cut the power path of the power supply and the battery. They help to
avoid the danger of sparks when connecting the battery and it's useful for restart the
equipment completely.
2.2.2 Battery installation
Before installing the battery it is recommended to switch
off the equipment using the switches in the supply circuit.
This system allows to mount the battery safely and avoiding
unwanted short circuits.
The equipment has a cavity for 12V sealed lead-acid
batteries with a maximum size of 167 (height) x181 (width)
x76 (depth) mm.
The equipment consumes 9Ah of battery for 24h in stand-
by and 8Ah for one hour in evacuation at maximum power. With the recommended
battery brand YUASA NP17-12I we have 17Ah, enough to comply with stand-by and
evacuation needs.
Additionally, a 25 Amps safety fuse is available for the battery input located on the
supply plate.
Battery assembly
Unscrew the fixing part and release the flange that holds the cable for transport.
Connect the battery, put in the housing and fix it again. Remember that lead acid
batteries should not be installed inverted.
2.2.3 Fire central interface
The emergency activation interface is indicated for interconnecting with fire control
and indication equipment. All input connections are supervised in the event of failure in
the transmission line. Said interface is composed of three sections.
5
Illustration 5: Battery installation