Fire-Lite MS-9050UDC Addressable Fire Alarm Control Panel - Manual (Page 28)

28 MS-9050 Series Manual — P/N 52413:G 4/14/2014
Installation Power
2.3 Power
2.3.1 AC Power and Earth Ground Connection
Primary power required for the MS-9050UD/C FACP is 120 VAC, 60 Hz, 3.0 amps or 240 VAC, 50
Hz, 1.5 amps for the MS-9050UDE. Overcurrent protection for this circuit must comply with Arti-
cle 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 main circuit breaker is off
before wiring any connections between the mains and the control panel. Connect wiring from the
AC mains to the Transformer on the FACP, being careful to observe proper connections.
Connect the AC ground wire to the Ground Stud located in the left side of the backbox. Refer to
Figure 2.2 on page 25 and the illustration below for location of the stud. If installing an optional
ANN-LC, ensure that the ground for the AC mains cable is installed first, closest to the backbox.
This connection is vital for maintaining the control panel’s immunity to unwanted transients gener-
ated 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).
For AC connections to the MS-9050UDC, refer to“AC Power Connections for Canadian Applica-
tions” on page 184.
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 com-
pletely installed. Observe polarity when connecting the batter-
ies. Connect the battery cable to J1 on the main circuit board.
Refer to“Power Supply Calculations” on page 153, for calcula-
tion of the correct battery rating.
!
WARNING: RISK OF DAMAGE AND ELECTRICAL SHOCK
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.
Interconnect
Cable
!
WARNING: BATTERIES CONTAIN SULFURIC ACID
BATTERIES CONTAIN 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.