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D200-24-00 1 I56-0056-07R

DH100ACDCLWP Watertight Air Duct Smoke

Detector with Extended Air Speed Range

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

800/736-7672, FAX: 630-377-6495

www.systemsensor.com

The Innovair DH100ACDCLWP is a photoelectric extended air

speed range duct smoke detector with a NEMA 4 Rated

watertight 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, wind-

blown 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 down-

wards, 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 ref-

erenced for detailed information.

NOTICE: This manual shall be left with the owner/user of

this equipment.

IMPORTANT: This detector must be tested regularly follow-

ing NFPA 90 requirements. The detector should be cleaned at

least once a year.

Table of Contents Page

[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

[7] Detector Cleaning Procedures 7

[8] Board Replacement 8

[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 to the entire building. Smoke detec-

tors 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 sup-

plied as a photoelectronic model. This smoke detection

method is combined with an efficient housing design that

samples air passing through 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 sig-

naling 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 func-

tioning. To accurately determine detector status following

installation, System Sensor offers a variety of remote

annunciation and test accessories.

The DH100ACDCLWP can be reset by a momentary power

interruption, the reset button on the front cover, the control

panel, or remote reset accessory. The DH100ACDCLWP

incorporates a cover tamper feature that provides a trou-

ble 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 pro-

viding 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 recommends

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 situations may cause an interruption of power. The

system safeguards should be discussed with your local fire

protection specialist.

WARNING

Summary of content (8 pages)

PAGE 1
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 watertight 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.
PAGE 2
[3] Figure 1: Exploded View Of Duct Smoke Detector Components DETECTOR COVER DETECTOR BOARD COVER MOUNTING SCREWS POWER BOARD TERMINAL STRIP METAL SAMPLING TUBE SAMPLING TUBE FILTERS DETECTOR HOUSING CONDUIT HOLES FOAM GASKETS [5.2] Select Mounting Orientation If possible, mount the DH100ACDCLWP with the wiring entry hole(s) facing downwards, so that all wiring enters the housing from below. This minimizes the possibility of water entering around the conduit fittings.
PAGE 3
Figure 3. Air duct detector sampling tube: exhaust tube is molded onto the base of the duct housing, and the A2440-00 Exhaust Tube Extension is available as an accessory in those cases where the molded exhaust port does not extend at least 2 inches into the duct. The sampling tube is always installed with the air inlet holes facing into the air flow. To assist proper installation, the tube’s mounting flange is marked with an arrow.
PAGE 4
[5.7] Field Wiring Installation Guidelines All wiring must be installed in compliance with the National Electrical Code and the local codes having jurisdiction. Proper wire gauges should be used. The conductors used to connect smoke detectors to control panels and accessory devices should be color-coded to prevent wiring mistakes. Improper connections can prevent a system from responding properly in the event of a fire.
PAGE 5
Before conducting these tests, notify the proper authorities that the smoke detection system will be temporarily out of service. Disable the zone or system under test to prevent unwanted alarms. measure and record the voltage drop across the 1000 Ω resistor (measurement 1), 4.00 volts is typical.
PAGE 6
Figure 7. System wiring diagram for 4-wire duct smoke detectors: CAUTION Do not loop wire under terminals when wiring detectors. Break wire runs to provide system supervision of connections. AVAILABLE POWER INPUTS AVAILABLE POWER INPUTS POWER INPUTS ACCEPT 24 VDC, 24 VAC 50-60 HZ, 120 VAC 50-60 HZ, OR 220/240 VAC 50-60 HZ. CONNECT POWER SOURCE TO APPROPRIATE TERMINALS OF EACH DETECTOR. 120 VAC 24V 120 VAC 24V 220/240 VAC 220/240 VAC 16 AUX.
PAGE 7
Figure 11. Wiring diagrams for optional accessories: (+) 15 15 ALARM SIGNAL (+) Figure 12.
PAGE 8
and blow out any remaining debris. Replacement screens (S08-39-01) are available. 3. Vacuum photo chamber, then use clean compressed air to blow area clean. 4. Replace the chamber by pressing it onto the base. Press the screen into place. It should fit tightly on the chamber. tures, holes, and the interconnect terminals. Push the board into place. 4. Secure board with the two mounting screws. [8.2] Power Board replacement (part no. A5064) 1. Disconnect wiring from the terminal block. 2.