Model FS24X
™
Fire and Flame Detectors
INSTALLATION GUIDE and OPERATING MANUAL
Fire Sentry Corporation
Document No. 6178-001 - Rev. Q
© Copyright 2011
All Rights Reserved
Page 5
SECTION 2: INSTALLATION
2.1
Mounting Instructions
Consider the following guidelines when selecting Detector location:
1. As with all flame and fire Detectors, avoid areas that contain radiant energy sources (such as radiant
heaters, high intensity lamps, flare-
stacks, etc.) in close proximity to the Detector’s field of view.
2. Detectors should not be mounted so that they look up or face the horizon (especially outdoors). Use
a minimum thirty degrees (30°) downward angle with the SM4 swivel mount (see Figure 2-1).
3. Make sure the Detector has a clear, unobstructed view of the threat area. Physical obstructions
between a fire and the Detector may cause the fire to be undetected.
4. The Model SM4 is a 316 Stainless Steel Swivel Mount designed for the FSC Detector housing. The
adapter plate, with the two (2) screw holes (facing away), is attached to the base of the Detector (
see
Figure 2-1
). The mounting plate, with the four (4) screw holes (facing towards), is used for mounting
the SM4 to a solid surface. Each adjustment increment along an axis is calibrated to 10°. For single
axis adjustments, the center section need not be installed.
5. Avoid mounting the Detectors in areas where temperatures exceeds the specified operating
temperature range (
see Sections 1.2.3 & 1.2.5
).
6. Detector Conduit Entries
a) If only one conduit entry is used, correctly install and seal the conduit plug on the unused entry,
¾ in. NPT or 25mm (see Figure 2-2).
b) Install an approved conduit trap or drain, if required to meet hazardous area classifications per
NFPA 70: National Electrical Code, latest revision.
Figure 2-1
Detector (front view)
SM4 Swivel Mount
Figure 2-2
Figure 2-3