General Description; Introduction - Simplex 4098-9687 Installation Instructions Manual

General Description

Introduction

The 4098-9687 Stand Alone Duct Detector (see Figure 1 on page 2) is designed
to sample air and detect smoke in air ducts. The 4098-9687 duct detector uses
the 4098-9601 photoelectric smoke detector.
The 4098-9687 Stand Alone Duct Detector provides fail-safe operation, the loss
of power or detector removal activates the Duct Detector Housing alarm relay
contacts.
The 4098-9842 Duct Control Station (see page 6 for details) is the remote
control interface connected to the Stand Alone Duct Detector and provides a
Power-On LED, Alarm LED, audible sounder, sounder silence switch, and
detector Test/Reset switch.
For detailed information on using smoke detectors in air distribution systems, see
NFPA 90A and refer to the following excerpt from NFPA 90A.
Per NFPA 90A, 1999 Edition
Section 4-4.4.3 Where smoke detectors required by Section 4-4 are installed in
a building not equipped with an approved fire alarm system as
specified by 4-4.4.2, the following shall occur:
1. Smoke detector activation required by Section 4-4 shall cause a visual and
audible signal in a normally occupied area.
2. Smoke detector trouble conditions shall be indicated visually or audibly in a
normally occupied area and shall be identified as air duct detector trouble.
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