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MS-9200UDLS PN 52750:E1 01/27/09 45
SECTION 2 Installation
The cabinet may be either semi-flush or surface mounted. The cabinet mounts using
two key slots and two 0.250” (6.35 mm) diameter holes located in the backbox. The
key slots are located at the top of the backbox and the two securing holes 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 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 Mounting Backbox
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 inside the supplied anti-static bag and store 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 2.3 on page 47
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” O.C. stud mounting
Install remaining fasteners and tighten
!
See Page
Figure 2.1 MS-9200UDLS Chassis Removal
Backbox
Main Circuit Board on chassis
mounting studs
92udchassisinbox.cdr
grounding stud
mounting slots