Connecting Mains & Battery Power; Connecting Mains Power; Connecting The Batteries - Zeta NPSX1 Installation Manual

PREMIER SX INSTALLATION MANUAL.
4 CONNECTING MAINS & BATTERY POWER
4.1 CONNECTING THE MAINS POWER
INTERNAL WIRING
Figure 3: Power Supply PCB layout and Mains connection details

4.2 CONNECTING THE BATTERIES

BATTERY
INTERCONNECTING
CABLE
SEALED LEAD ACID BATTERY
12V / 7 Ah
2 x 2Ah Batteries
Figure 4: Battery location and connection details
Approved Document No: GLT.MAN-101
Issue : 1.95 Authorised: GH
INLET MAINS
SUPPLY
TO PCB
CLAMP
SEALED LEAD ACID BATTERY
12V / 7Ah
TO PCB
BATTERY
INTERCONNECTING
CABLE
SEALED LEAD ACID BATTERY
12V / 2 Ah
Date: 09/06/2004
The panel should be connected to 220-240V AC by a 3A
rated spur to the fuse box with 1.0mm
cable. Nothing else should be connected to this supply
The Live, Earth and Neutral connections are marked on the
PCB. The Mains is protected by a quick blow 20mm 2A
HBC fuse. (Also known as HRC)
The incoming mains cable should be kept separate from
the zone cables to help minimise mains interference.
Once the mains is connected, the protective cover should
be replaced BEFORE turning on the mains power. This will
minimise the chance of electric shock from the PCB.
MAKE SURE ANY SPARE ENTRY HOLES ARE
COVERED WITH THE PLASTIC GROMMETS PROVIDED
It is advisable to apply power to the panel before
connecting any devices, to check for correct
operation, and to familiarise yourself with the fire
alarm panels controls.
Although there are many sizes of suitable
battery, the sizes we usually recommend are
12V 7Ah, or 12V 2Ah, and the enclosure has
been designed to hold these two sizes.
To calculate the exact requirement, use the
equation in section 10, but as a rough guide:-
2/4 Zones, 24 Hr standby – 2Ah
2/4 Zones, 48 Hr+ standby – 7Ah
6/8 Zones – 7Ah
BATTERY CONNECTIONS
The two batteries are wired in series.
The +ve of one battery is connected to the red
battery lead.
The –ve of the other battery is connected to
the black battery lead.
The –ve of the first battery is connected to the
+ve of the second battery using the link wire
supplied.
When fitting the batteries, take care not to
damage the temperature monitoring
thermistors. See figure 4a overleaf.
2 2
to 2.5mm 3-core
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