FireWarden 100-2/E — P/N 52778:A 11/04/2005 27
Power Installation
2.3 Power
2.3.1 AC Power and Earth Ground Connection
Primary power required for the FACP is 120 VAC, 60 Hz, 3.0
amps for the NFW2-100 or 240 VAC, 50 Hz, 1.5 amps for the
NFW2-100E. Overcurrent protection for this circuit must
comply with Article 760 of the National Electrical Code (NEC)
and/or local codes. Use 14 AWG (2.00 mm
2
) or larger wire
with 600 volt insulation rating. Make certain that the AC
mains circuit breaker is off
before wiring any connections
between the mains and the control panel. Connect wiring from the AC mains to TB11 on the FACP,
being careful to observe proper connections.
Connect a wire from the grounding stud in the cabinet to a known solid earth ground in the
building. Refer to Figure 2.1 on page 23 for location of the stud. This connection is vital for
maintaining the control panel’s immunity to unwanted transients generated by lightning and
electrostatic discharge. Apply AC power to the panel only after the system is completely installed
and visually checked. Note that AC power must be applied to the panel before installing the battery
interconnect cable (refer to the following section).
2.3.2 Battery Power
Before connecting the batteries to the FACP, make certain that
the interconnect cable between the batteries is not
connected.
Do not connect the interconnect cable until the system is
completely installed. Observe polarity when connecting the
batteries. Connect the battery cable to J9 on the main circuit board. Refer “Power Supply
Calculations” on page 158, for calculation of the correct battery rating.
!
WARNING:
Several different sources of power can be connected to this panel. Disconnect all sources of
power before servicing. The panel and associated equipment may be damaged by removing
and/or inserting cards, modules or interconnecting cables while this unit is energized.
HOT NEUT EARTH
- +
BATTERY
LCD DISPLAY
TB11
J1
J4
J9
-
-
+
+
Interconnect
Cable
!
WARNING:
Battery contains sulfuric acid which can cause severe burns to the skin and eyes and can
destroy fabrics. If contact is made with sulfuric acid, immediately flush the skin or eyes with
water for 15 minutes and seek immediate medical attention.
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