Edwards Signaling eFSA250 - Manual (Page 14)

Chapter 1: Installation and wiring
2 E-FSA64 and E-FSA250 Technical Reference Manual
Panel backbox installation
The panel backbox can be surfaced mounted or semiflush mounted.
To surface mount the panel backbox:
1. Position the panel backbox on the finished wall surface.
2. Fasten the panel backbox to the wall surface where indicated.
To semiflush mount the panel backbox:
1. Frame the interior wall (as required) to support the full weight of the backbox
and standby batteries.
2. Install a semiflush trim ring (optional) to the backbox.
3. Fasten the panel backbox to the framing studs where indicated.
Figure 1: Surface and semiflush mounting details
Surface mount Semiflush mount
Trim ring