System Sensor Innovair DH100ACDCLWP Installation And Maintenance Instructions Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS
DH100ACDCLWP Watertight Air Duct Smoke
Detector with Extended Air Speed Range
The Innovair DH100ACDCLWP is a photoelectric extended air
speed range duct smoke detector with a NEMA 4 Rated water-
tight housing. This detector is specially designed for use in either
indoor or outdoor applications to provide a degree of protection
against falling dirt, rain, sleet, windblown dust, splashing water
and hose-directed water.
The DH100ACDCLWP is listed for an extended air speed range of
100 to 4000 feet per minute (0.5 m/s to 20.2 m/s).
IMPORTANT NOTES
The following temperature limitations must be observed
during the installation and handling of this product:
Operating temperature:+32° to +131°F (0° to + 55°C)
Storage temperature: -22° to +158°F (-30° to +70°C)
To maintain the watertight properties of this duct smoke detector,
watertight conduit and fittings must be used. Mount the product with
the conduit holes facing downwards, if possible.
Before Installing
Please thoroughly read the System Sensor Guide for Proper Use
of Smoke Detectors in Duct Applications, which provides detailed
information on detector spacing, placement, zoning, wiring, and
special applications. Copies of this manual are available online at
www.systemsensor.com or via System Sensor's toll free fax-back
service, Documents on Demand at 800/736-7672. NFPA Standards
72 and 90A should also be referenced for detailed information.
NOTICE: This manual shall be left with the owner/user of
this equipment.
IMPORTANT: This detector must be tested regularly following
NFPA 90 requirements. The detector should be cleaned at least
once a year.

Table of Contents

[1] General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
[2] Limitations of Duct Smoke Detectors . . . . . . . . . . . . . . . . . 1
[3] Exploded View of Duct Smoke Detector Components. . . . . . . 2
[4] Contents of the Duct Smoke Detector Kit . . . . . . . . . . . . . . 2
[5] Installation Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
[6] Duct Smoke Detector Maintenance & Test Procedures . . . . . . . 4
[7] Detector Cleaning Procedures . . . . . . . . . . . . . . . . . . . . . . 7
[8] Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
[9] Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

[1] General Description

An HVAC system supplies conditioned air to virtually every area
of a building. Smoke introduced into this air duct system will be
distributed to the entire building. Smoke detectors designed for
use in air duct systems are used to sense the presence of smoke
in the duct.
Model DH100ACDCLWP Air Duct Smoke Detector is supplied as a
photoelectronic model. This smoke detection method is combined
with an efficient housing design that samples air passing through
D200-24-00
a duct and allows detection of a developing hazardous condition.
When sufficient smoke is sensed, an alarm signal is initiated and
appropriate action can be taken to shut off fans, blowers, change
over air handling systems, etc. These actions can facilitate the
management of toxic smoke and fire gases throughout the areas
served by the duct system.
The DH100ACDCLWP detector is designed to operate on 24 VDC/
VAC, 120 VAC, or 240 VAC. Alarm and supervisory relay contacts
are available for control panel interface (alarm initiation), HVAC
control, and other auxiliary functions. Auxiliary relays are also
provided for fan shut down or signaling of up to 9 other detectors
in the loop for multiple fan shut down. These detectors are not
designed for 2-wire applications.
For testing, the alarm can be enabled by a magnet activated test
switch or by the optional remote test station. The duct smoke
detector latches into alarm state when an alarm occurs. Prior to
cover installation, the green LED should be flashing, indicating
that the detector is powered and functioning. To accurately deter-
mine detector status following installation, System Sensor offers a
variety of remote annunciation and test accessories.
The DH100ACDCLWP can be reset by a momentary power inter-
ruption, the reset button on the front cover, the control panel,
or remote reset accessory. The DH100ACDCLWP incorporates
a cover tamper feature that provides a trouble signal after 7
minutes if the cover is removed or improperly installed. Proper
reinstallation of the cover removes the trouble condition.

[2] Limitations Of Duct Smoke Detectors

The National Fire Protection Association has established that
DUCT DETECTORS MUST NOT BE USED AS A SUBSTITUTE FOR
OPEN AREA DETECTOR PROTECTION as a means of providing
Page
life safety. Nor are they a substitute for early warning in a build-
ing's regular fire detection system.
System Sensor supports this position and strongly recom-
mends that the user read NFPA Standards 90A, 72, and 101.
The DH100ACDCLWP Air Duct Smoke Detectors are listed per
UL 268A.
This device will not operate without electrical power. Fire situa-
tions may cause an interruption of power. The system safeguards
should be discussed with your local fire protection specialist.
This device will not sense smoke unless the ventilation system is
operating and the cover is installed.
For this detector to function properly, it MUST be installed accord-
ing to the instructions in this manual. Furthermore, the detector
MUST be operated within ALL electrical and environmental speci-
fications listed in this manual. Failure to comply with these re-
quirements may prevent the detector from activating when smoke
is present in the air duct.
1
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3825 Ohio Avenue, St. Charles, Illinois 60174
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www.systemsensor.com
WARNING
I56-0056-009R