Pittway NOTIFIER The SYSTEM 5000 Installation Manual page 51

Section 5-5: The NR45-24 Remote Battery Charger
When the secondary power source requirements demand batteries that cannot be adequately charged by the
main power supply employed, an NR45-24 Remote Battery Charger must be used. The NR45-24 mounts in its
own cabinet, up to 20 feet away from the control panel. The NR45-24 is capable of charging 55-ampere-hour
batteries, which are also contained in the charger cabinet.
AC Power Requirements
The primary power requirement for the NR45-24 Remote Battery Charger is 120 VAC, 50/60 Hz, 1.0 amps and
the primary power requirement for the NR45-24E is 220/240 VAC, 50/60 Hz, 0.5 amps.
Connecting the Primary Power Source
With the breaker at the main power distribution panel turned off, connect the primary Hot line to Terminal 1 on the
battery charger and the primary Neutral line to Terminal 2. All connections between the control panel and the
battery charger must be made in conduit, using #12 AWG wire. Do not route 120/240 VAC wiring in the same
conduit as other control panel circuits. Leave the main power breaker off until installation of the entire system is
complete.
Connecting the Secondary Power Source
Do not connect AC power or batteries until the system is completely wired and ready for testing. Refer to Wiring
Diagram and Instructions for the NR45-24 Charger (DWG. No. 1977-41) for additional information.
Primary Power Source
Hot Neutral
1 2 3 4
+ -
-
12 VDC
55-AH
Battery
NR45-24
Figure 5-8: NR45-24 Remote
Battery Charger Connections
(24 VDC)
24 VDC. (supervised). Maximum charge current for standby batteries is 2 amps (fast
charge) or 20mA (trickle charge). Use #12 AWG wire in conduit (20 feet or less).
+ - +
12 VDC
55-AH
Battery
S5000 15583 Rev.
Cut JP2 to disable
on-board charger
6/10/96 P/N 15583:
MPS-24A
Cut JP1 to disable
on-board charger
+ -
MPS-24B
+ -
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