19
FS20X Fire and Flame Detectors
Adaptor plate
Mounting plate
Figure 7. SM4 swivel mount
3. Provide the detector an unobstructed view of the threat area. Obstructions
between the detector and a fire may prevent it from being detected.
4. Mount the detector in an area where temperatures will not exceed the specified
operating temperature range (see “Environmental” and “Hazardous Area
Classifications” on page 39).
5. Conduit entries
a. If only one conduit entry is used, install and seal the conduit plug on the
unused entry (¾ in. NPT or 25mm, as shown in Figure 8).
Figure 8. Detector, front view
b. Install an approved conduit condensation trap or drain as shown in Figure
9 (if required to meet hazardous area classifications per NFPA 70: National
Electrical Code, latest revision).
Figure 9. Conduit trap
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