Before Installing

INSTALLATION AND MAINTENANCE INSTRUCTIONS

DH100 Air Duct Smoke Detector

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. Cop- ies of this manual are available from System Sensor. NFPA Standards 72 and 90A should also be referenced for de- tailed information.

NOTICE: This manual should 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		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		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 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 DH100 Air Duct Smoke Detectors are supplied 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 develop- ing hazardous condition. When sufficient smoke is sensed, an alarm signal is initiated at the fire control panel monitor- ing 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.

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DH100 detectors are designed to operate with 12 or 24 VDC UL listed compatible 2-wire control panels. Alarm current must be limited to 100mA or less by the control panel. Auxiliary relay contacts for control purposes are not available for use with the DH100. Control must ini- tiate from the control panel.

For testing, the alarm can be enabled by a magnet acti- vated 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 DH100 can be reset by a momentary power interrup- tion, the reset button on the front cover, the control panel, or remote reset accessory.

[2]Limitations Of Duct Smoke Detectors

WARNING

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 DH100 Air Duct Smoke Detectors are listed per UL 268A.

WARNING

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

This device will not sense smoke unless the ventilation sys- tem is operating and the cover is installed.

WARNING

For this detector to function properly, it MUST be installed according to the instructions in this manual. Furthermore, the detector MUST be protected from the elements and op- erated within ALL electrical and environmental specifica- tions listed in this manual. Failure to comply with these requirements may prevent the detector from activating when smoke is present in the air duct.

D100-67-00

I56-1148-04

D100-67-00, I56-1148-04 specifications

The System Sensor D100-67-00 and I56-1148-04 are advanced devices designed for fire detection and alarm systems, offering a range of features and technologies that cater to the needs of modern safety requirements.

The D100-67-00 is a high-performance photoelectric smoke detector that incorporates innovative sensing technology. It boasts a sophisticated optical chamber that enhances its ability to detect smoke particles effectively. This detector minimizes false alarms commonly caused by non-threatening, everyday activities such as cooking, making it ideal for residential and commercial applications. Its low profile design and sleek aesthetic also allow it to seamlessly blend into various environments. The D100-67-00's sensitivity is adjustable, ensuring that it can be calibrated according to specific needs or building codes, thereby enhancing its versatility.

Moreover, the D100-67-00 features a built-in sounder and visual indicators that provide immediate alerts. The device is equipped with a robust communication protocol that allows it to integrate with other fire alarm control panels and monitoring systems. This capability enhances the overall safety network by ensuring real-time communication of any fire incidents, a crucial feature in high-risk areas.

On the other hand, the System Sensor I56-1148-04 is an advanced heat detector that employs thermal sensing technology. It is designed to respond to rapid temperature increases, ensuring quick detection of potential fire hazards. This device is particularly beneficial in environments where smoke detectors might be prone to false alarms due to dust or steam, like kitchens or garages. The I56-1148-04 features a dual-heat sensing mechanism, allowing it to differentiate between normal temperature fluctuations and dangerous heat spikes, providing an extra layer of protection.

Both devices are engineered with durability in mind, adhering to strict industry standards. They are intended for long-term use, requiring minimal maintenance while still delivering reliable performance. Critical for emergency response, both detectors offer optional connectivity with control panels and monitoring solutions, allowing for comprehensive system integration.

In summary, the System Sensor D100-67-00 and I56-1148-04 are integral components of fire safety systems, with their advanced features and technologies ensuring efficient detection and alerting in diverse settings. These devices exemplify reliability and innovation, essential in safeguarding lives and property against fire hazards.

DH100 Air Duct Smoke Detector