4: Installing And Connecting The Batteries; 5: External Dc Power Output Connections - Notifier NFS-320 Installation Manual

Installation
3.5.4 Installing and Connecting the Batteries
w
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 skin or eyes with water for 15 minutes
and seek immediate medical attention.
WARNING:
!
Do not connect the Battery Interconnect Cables (P/N 75560 and 75561) at this time. Make this
connection AFTER initial system primary powerup. Follow sequence of steps in Section 3.2
"Installation Checklist", Table 3.1; this is Step 11.
Batteries are installed in the control panel cabinet
or in a separate battery cabinet which can be
mounted below the control panel or up to 20 feet
(6.096 m) away from the control panel, in conduit
in the same room.
Connect the battery as follows (see Figure 3.4
above):
1. Install batteries into bottom of cabinet or into
separate battery cabinet.
2. Connect the red cable from TB3(+) on the
CPS-24/E power supply to the positive (+)
terminal of one battery.
3. Connect the black cable from TB3(–) on the
CPS-24/E power supply to the negative (–) terminal of the other battery.
4. Connect the remaining cable between the negative (-) terminal on the first battery to the
positive (+) terminal on the second battery.
3.5.5 External DC Power Output Connections
Terminal TB10 provides two (2) power outputs, resettable and non-resettable. Each output is
power-limited. Follow sequence of steps in Section 3.2 "Installation Checklist", Table 3.1; this is
part of Step 4.
24 VDC Resettable Power Circuit (Four-Wire Smoke Detectors). The power supply
provides a single 24 VDC filtered, power-limited, resettable power circuit for devices that require
resettable power (such as four-wire smoke detectors). This circuit is power-limited, but must be
supervised. To provide supervision, install a UL-listed end-of-line power supervision relay (such as
the EOLR-1) after the last device. Connect the power supervision relay normally open contact in
series with an Initiating Device Circuit (IDC). The four-wire power circuit energizes the power
supervision relay. When you reset the system, the control panel removes power from these
terminals for approximately 15 seconds.
24
Non-resettable
Power
Figure 3.6 Power Supply DC Outputs - TB10
NFS-320/E/C Installation Manual — P/N 52745:M2 7/1/14
Connecting the Power Cables
TB3 - Battery Connection
Battery (+)
Figure 3.5 CPS-24/E:
DC Power Connections
Resettable
Power
Battery (-)