Mounting Requirements - Simplex 4098 Applications Manual

4098 Smoke Detectors,
Mounting
All smoke detectors identified in Table 2-1 mount to a detector base (refer to the "4098 Bases"
Requirements
section of this chapter for more information). Use the following considerations and Figure 2-1
when mounting smoke detectors.
IMPORTANT: Smoke must enter the chamber of the detector. Thus, air flow, air
Note: Where the possibility of positive airflow from the electrical conduit/junction box exists,
Continued
stratification, air velocity, air stagnation, and air migration affects
detector efficiency.
seal the conduit openings with 3M Weatherban #606 (or equivalent), a non-flammable
sealing compound.

Do not install detectors in areas where temperatures are likely to exceed 100 F (38 C)
or fall below 32 F (0 C).

Because the 4098-9602 detector combines heat sensing, DO NOT install this detector in
locations where the ambient temperatures exceed 100 F (38 C) or where temperature
fluctuations above 6 F/min. occur.

Do not install detectors on a ceiling within 4 inches (10 cm) of a wall.

Do not install detectors where forced air ventilation may dilute the smoke before it
reaches the detector.

Do not install detectors in areas where smoke is normally present (kitchens, furnace
rooms, laundry rooms, loading docks, rooms with fireplaces, rooms with candles,
soldering rooms, etc.).

Do not install detectors in areas where there is likely to be steam (in hospital patient
rooms with vaporizers, near shower rooms, above large sinks, etc.).

Do not install detectors above ashtrays in elevator lobbies.

Wall-mounted detectors should be located 4 to 12 inches (10-30.5 cm) from the ceiling to
detector head.

Protect all detector heads during construction to avoid infiltration of construction debris.
Remove any protective covers before activating the system.

If using the adapter plate, tighten the mounting screws without warping the adapter plate.
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