Backbox Mounting

SECTION 2

Installation

Installation

The cabinet can be surface mounted or semi-flush mounted. The door is removable during the installation period by opening and lifting it off the hinges. The cabinet mounts using two key slots at the top of the backbox and two additional securing holes located at the bottom.

Carefully unpack the system and check for shipping damage. Mount the cabinet in a clean, dry, vibration-free area where extreme temperatures or levels of humidity are not encountered. The area should be readily accessible with sufficient room to easily install and maintain the panel. Locate the top of the cabinet approximately 5 feet (1.5 m) above the floor with the hinge mounting on the left. Determine the number of conductors required for the devices to be installed. Sufficient knockouts are provided for wiring convenience. Select the appropriate knockout(s) and pull the conductors into the box. All wiring should be in accordance with the National and/or Local codes for fire alarm systems.

2.1 Backbox Mounting

The circuit board contains static-sensitive components. Always ground yourself with a proper wrist

!strap before handling any boards so that static charges are removed from the body. Use static suppressive packaging to protect electronic assemblies.

To prevent damage to the circuit board and to facilitate backbox mounting, the chassis with main circuit board and transformer can be easily removed. Loosen the two 3/8” nuts securing the top flanges of the chassis, then slide the chassis up to free it from the lower tabs. Place the chassis assembly in a protective antistatic bag in a safe location until it can be reinstalled in the backbox.

 Mark and predrill hole in the wall for the center top keyhole mounting bolt using the dimensions illustrated in Figure 2.2 on page 18

See Page

 Install center top fastener in the wall with the screw head protruding  Place backbox over the top screw, level and secure

 Mark and drill the left and right upper and lower mounting holes

Note: outer holes (closest to sidewall) are used for 16” on-center stud mounting  Install remaining fasteners and tighten

grounding stud: attach solid earth ground wire (refer to Figure 2.4 on page 20)

mounting slots mounting studs

mounting slots

Board on Chassis

mounting holes

mounting tabs

5UDBRDINBOX.CDR

Backbox

Figure 2.1 Chassis Mounting in Backbox

MRP-2001 & MRP-2001E PN 53040:A 4/16/2007

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