42 Installation—Installing the FC-2000
With the breaker at the main power distribution panel turned off, remove
the plastic insulating cover from terminal block TB1 and connect the
system primary power source. Connect the service ground to TB1- 2 and
ground the power supply assembly to the cabinet with a chassis ground
cable (71073) to TB1 terminal 1. Connect the primary neutral line to
TB1 terminal 4 and the primary hot line to TB1 terminal 6. Do not route
120 VAC wiring in the same conduit as other system circuits. After
completion of these connections, reinstall the plastic insulating cover over
the terminal strip. Leave the main power breaker off until installation of
the entire system is complete.
Secondary power (batteries) is required to support the system during loss
of primary power. These batteries reside in the control panel cabinet or in
a separate NR45-24 Remote Battery Charger cabinet, which can be
mounted up to 20 feet away from the control panel. For connection of an
NR45-24, refer to Figure 37.
Connect the battery positive cable (71071) to TB2 terminal 1 (+) and the
battery negative cable (71072) to TB2 terminal 2 (-). Do not connect the
battery interconnect cable (71070) at this time. This connection will
be made just after initial system primary power-up.
Up to 1 amp of current for 4-wire smoke detectors can be drawn from TB3
terminals 1 (+) and 2 (-). Power is removed from these terminals during
system reset. This 24 VDC regulated 4-wire smoke detector power is
power-limited but must be supervised via an end-of-line listed power
supervision relay. The power supervision relay is energized by the 4-wire
power circuit and its contact must be connected in series with an initiating
device circuit.
Up to 3 amps of regulated current for powering indicating appliances can
be drawn from TB3 terminals 3 (+) and 4 (-). Power is not removed from
these terminals during system reset. If a resettable power circuit is
desired, cut JP5 on the MPS-24A. A maximum of 2 amps is available
with JP5 cut.
ACM annunciators can be powered either from the 4-wire smoke detector
output or the indicating appliance power output. Both outputs provide the
filtered, regulated, power-limited source required by the annunciators.
The power run to the annunciators is supervised by the annunciator (loss
of communications error).
Connecting the
Primary Power
Source (120 VAC,
50/60 Hz,
1.8 amps)
Connecting the
Secondary Power
Source (24 VDC)
4-Wire Smoke
Detector Power
(24 VDC)
Indicating
Appliance Power
(24 VDC)
Annunciator
Power (24 VDC)
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