Notification Appliance Circuits; Regulated Dc Output; Ac Power Connections; Standby Battery Power - Fire-Lite MP-24 Instruction Manual

Notification Appliance Circuits

Connect the Style Y (Class B) Notification Appliance Circuits as shown in Figure 4.3. Use only polarized UL-
listed Notification Appliances listed in the Device Compatibility Document. Size wire for a maximum voltage
drop of 1 VDC on 12-volt systems and 2 VDC on 24-volt systems. The following resistance table for solid
copper wire at 20° C may be helpful for sizing wire.
AWG GAUGE
18
16
14
12
10
All Notification Appliances must be wired sequentially for proper supervision. The circuit's 10 KΩ ELR must
be removed from the control panel and connected to the circuit after the last Notification Appliance.

Regulated DC Output

Restorable primary power for detector and/or other low current electronic devices may be obtained from
Terminal 5 (-) and Terminal 7 (+). Do not connect inductive loads to these terminals. Nominal voltage output
is 12 VDC on 12-volt panels and 24 VDC on 24-volt panels. Maximum current available is 100 mA.

AC Power Connections

Primary power for the MP-12/24 is 120 VAC, 60 Hz, 0.50 A. Primary power for the MP-12/24E is 220/240
VAC, 50/60 Hz, 0.250 A. Connect terminal 1 (neutral) and 2 to a separate protected circuit, coming directly
from the line side of the main power feed to the building. No other equipment may be connected to the fire
alarm power circuit. Wire must run continuously, without disconnect devices, from the power source to the
fire alarm control panel. Overcurrent protection for this circuit must comply with article 760 of the National
Electrical Code and/or local codes. Use #14 AWG or larger wire with 600 V insulation.

Standby Battery Power

Battery selection and installation:
• Determine battery capacity from Table A.1.
• Read battery instruction sheet supplied with battery.
DANGER: Polarity must be observed when connecting battery.
• Connect battery cable to battery (Red wire to + terminal of battery. Black wire to - terminal of
battery).
• Route battery cable via 1/4" wide opening in the circuit board corner nearest P3. Do not allow
battery cable to be near heat-sinks on circuit board, since heat can damage the cable.
• Plug keyed female connector on end of battery cable onto terminal P3 of the circuit board.
CAUTION: Battery contains Sulfuric Acid which can cause severe burns to the skin and eyes and damage
to fabrics. In the event the battery leaks and contact is made with the Sulfuric Acid, immediately flush skin or
eyes with water for at least 15 minutes. For eyes, seek immediate medical attention. A good neutralizing
solution for Sulfuric Acid is water and household baking soda.
12
Ohms/1,000 FT.
6.385
4.016
2.525
1.588
0.9989
MP12/24 Fire Alarm Control Panel Document 15440:G 6/6/96