Pittway SYSTEM SENSOR Innovair DH100LP Installation And Maintenance Instructions Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS
DH100LP Air Duct Smoke Detector
with Extended Air Speed Range
The Innovair DH100LP model is a photoelectric detector
approved for an extended air speed range of 100 to 4000
feet per minute (0.5 m/s to 20.3 m/s) and has an opera-
tional temperature range of 32°F to 131°F (0°C to 55°C).
Before Installing
Please thoroughly read the System Sensor Guide for Proper
Use of Smoke Detectors in Duct Applications (I56-473),
which provides detailed information on detector spacing,
placement, zoning, wiring, and special applications. Copies
of this manual are available from System Sensor. 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 and maintained
regularly following NFPA 72 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
and Test Procedures.....................................................5
[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 sys-
tem will be distributed throughout the entire building.
Smoke detectors designed for use in air duct systems are
used to sense the presence of smoke in the duct.
Model DH100LP Air Duct Smoke Detectors utilizes photo-
electric technology for the detection of smoke. This detec-
tion method when combined with an efficient housing
design samples air passing through the duct and allows
detection of a developing hazardous condition. When suf-
ficient smoke is sensed, an alarm signal is initiated at the
D200-15-00
fire control panel monitoring the detector, 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.
DH100LP detectors are designed to operate with
12/24VDC UL listed compatible 2-wire control panels.
Alarm current must be limited to 100mA or less by the con-
trol panel. Auxiliary relay contacts for control purposes are
not available for use with the DH100LP. Control must initi-
ate from the control panel.
For testing, the alarm can be enabled by a magnet activat-
ed test switch or by the optional remote test station. The
duct smoke detector latches into alarm state when an alarm
occurs. A green LED flashes to indicate power, a red LED
signals local alarm indication, and optional accessories
offer a variety of annunciation capabilities.
The DH100LP can be reset by a momentary power interrup-
Page
tion, the reset button on the front cover, the control panel,
or remote reset accessory.

[2] Limitations Of Duct Smoke Detectors

The National Fire Protection Association has established
that DUCT DETECTORS MUST NOT BE USED AS A SUB-
STITUTE FOR OPEN AREA DETECTOR PROTECTION as a
means of providing life safety. Nor are they a substitute for
early warning in a building'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 DH100LP Air Duct Smoke Detectors are listed per UL
268A.
This device will not operate without electrical power.
Fire situations 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 sys-
tem is operating and the cover is installed.
1
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
WARNING
WARNING
WARNING
I56-0083-00