Installation; Cabinet Mounting; Removal Of Circuit Board; Mounting Of Cabinet - Fire-Lite Alarms MS-4412B Instruction Manual

Cabinet Mounting

Carefully unpack the system and check for shipping damage.
Select a suitable location in a clean, dry, vibration-free environment that is not subject to extreme
temperatures. Locate the top of the cabinet approximately five feet above the floor with the hinge on the
left. The panel must be easily accessible for maintenance; the hinged door requires a minimum clearance
of 14 in. (35.56cm) to open.

Removal of Circuit Board

To prevent damage to the printed circuit board it should be removed prior to mounting of cabinet.

Mounting of Cabinet

Securely mount the cabinet using the mounting holes provided.

Attaching Conduit

Select and remove knockouts according to the number of conduits required.
Attach conduits to backbox as required.
Determine the number of conductors required for the devices to be employed. Pull required conductors
into the box through the knockouts provided.
Note: All wiring should be in accordance with the National and/or Local codes for fire alarm systems, including
"Power-limited Wiring Requirements" on page 16.
MS-4412B/MS-4424B Instruction Manual PN 15125:G1 10/22/02

2. Installation

Step Action
1 Disconnect the transformer wires from the circuit board at the J1
connector.
Remove the four (4) phillips head screws securing circuit board to
2
backbox.
3 Carefully set board aside in a secure place.
Step Action
1 Mark and predrill holes for the top two keyhole mounting screws using the
dimensions shown in Figure 2 on page 14.
2 Install two upper screws in the wall with the heads protruding.
3 Using the upper keyholes, mount the backbox over the two screws.
4 Mark and drill the lower two holes.
5 Secure backbox by installing the remaining fasteners and tightening all
screws.
6 If required, attach optional Trim Ring (TR-2-F) using the provided
instructions.
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