System Sensor DH400ACDCP specifications Before Installing, Table of Contents, General Description

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INSTALLATION AND MAINTENANCE INSTRUCTIONS

DH400ACDCP Air Duct Smoke Detector

3825 Ohio Avenue, St. Charles, Illinois 60174 1-800-SENSOR2, FAX: 630-377-6495 www.systemsenor.com

Before Installing

Please thoroughly read the System Sensor Guide for Proper Use of Smoke Detectors in Duct Applications (A05-1004), which provides detailed information on de- tector 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 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]

Exploded View of Duct Detector Components

 

2

[3]

Contents of the Duct Detector Kit

 

2

[4]

Limitations of Duct Detectors

 

2

[5]

Installation Sequence

 

2

[6]

Duct Detector Maintenance and Test Procedures

8

[7]

Detector Cleaning Procedures

 

10

[8]

Specifications

 

12

Warranty

 

13

Detector Test log

 

16

List of Tables and Figures

Page

Fig. 1:

Duct Detector Exploded View

2

Fig. 2:

Installation of Sampling Tube Gaskets

3

Fig. 3:

Mounting Location of Speed Nuts

3

Table 1: Inlet Sampling Tube Selection

3

Fig. 4:

Inlet Sampling Tube

4

Fig. 5:

Sampling Tube Mounting Configurations

4

Fig. 6:

Wiring Diagram

6

Fig. 7:

Wiring Diagram – No Control Panel

7

Fig. 8:

Wiring Diagram – Accessories

8

Fig. 9:

Sampling Tube Filter Installation

8

Fig. 10:

Testing Detector Alarm

9

Fig. 11:

Detector Head Removal

9

Fig. 12:

RTS451/RTS451KEY Test Coil Installation

10

Fig. 13:

Photo Head Exploded View

11

[1] General Description

An HVAC system supplies conditioned air to virtually ev- ery 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 DH400ACDCP Air Duct Smoke Detector utilizes photoelectric technology for the detection of smoke. This smoke detection method, when combined with an efficient housing design, samples air passing through the duct and allows detection of a developing hazardous condition. When sufficient smoke is sensed, an alarm signal is initi- ated at the fire control panel monitoring the detector, and appropriate action can be taken to shut off fans and blow- ers, 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.

DH400ACDCP detectors are designed to operate from 24 VDC, 24 VAC, 120 VAC, or 240 VAC. Alarm and supervisory relay contacts are available for control panel interface (alarm initiation), HVAC control, and other auxiliary func- tions. These detectors are not designed for 2-wire appli- cation.

For testing, the alarm can be enabled by a magnet activated test switch, by insertion of a calibrated test card into the sensing chamber (photoelectronic version only), or by the optional remote test station. The duct smoke detectors latch into alarm state when alarm occurs. LEDs on each detector illuminate to provide local alarm indication, and optional accessories offer a variety of annunciation capabilities.

The detector can be reset by a momentary power inter- ruption, by the magnet activated reset switch, or by the optional remote test station.

D400-13-00

1

I56-555-09R

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Contents Table of Contents Before InstallingList of Tables and Figures General DescriptionInstallation Sequence Contents Of The Duct Detector KitLimitations Of Duct Detectors StepDrill The Mounting Holes Install The InletInlet tubes required for different duct widths Outside Duct Width Inlet Tube RequiredAir duct detector inlet sampling tube Tube mounting configurations with varying air flow directionField Wiring Installation Guidelines Install the inlet tube as followsWiring Instructions Modifications Of Inlet Sampling TubesFor wiring Alarm RED Common Install The Cover Install The FiltersDuct Detector Maintenance And Test Procedures Perform Detector CheckAlarm Tests 2.1 M02-04-00 Magnet Test Filter ReplacementSmoke Entry Tests Air Flow Smoke ResponseSensitivity Tests 3.1 MOD400R Sensitivity Test Detector Cleaning ProceduresAir Filters Photo HeadsPhoto head exploded view ReinstallationMechanical Specifications Test FeaturesAccessories DescriptionElectrical Ratings Electrical SpecificationsD400-13-00 D400-13-00 Detector Test LOG Test Results and Maintenance Data

DH400ACDCP specifications

The System Sensor DH400ACDCP is a cutting-edge addressable smoke and heat detector specifically designed for commercial and industrial applications. Its advanced detection capabilities ensure a high level of safety in various environments, making it an essential component of modern fire alarm systems.

One of the standout features of the DH400ACDCP is its dual-sensing technology. This device combines both smoke and heat detection in a single unit, allowing for a more comprehensive approach to fire safety. The smoke detection is performed using a photoelectric sensor, which effectively identifies smoldering fires that produce a large amount of smoke, while the heat detector is designed to respond to rapid temperature increases and fixed temperature thresholds. This dual functionality ensures early notification in the event of a fire, enabling timely response.

The DH400ACDCP also incorporates System Sensor’s innovative analytics technology. This feature utilizes advanced algorithms to minimize false alarms while maintaining sensitivity to actual fire threats. By analyzing environmental conditions and historical data, the detector can distinguish between normal activities and potential fire indicators, thus reducing unnecessary interruptions.

In terms of installation and maintenance, the DH400ACDCP is designed for ease of use. It features a robust addressable communication system, which allows for straightforward integration into existing fire alarm panels. The unit can be easily configured through the panel, providing flexibility in customizing notifications and response protocols. Its durable construction ensures reliability, while routine diagnostics capabilities help monitor device health and facilitate maintenance efforts.

Another significant characteristic of the DH400ACDCP is its compatibility with system monitoring and control platforms. The detector can report its status and any potential issues directly to centralized monitoring stations, enabling rapid response to emergencies or maintenance needs. By integrating with modern building management systems, the DH400ACDCP contributes to an overall intelligent safety infrastructure.

Overall, the System Sensor DH400ACDCP offers a cutting-edge solution for fire safety in various environments, combining advanced detection technology, ease of integration, and robust performance. With its focus on minimizing false alarms while ensuring reliable detection, the DH400ACDCP stands as a critical asset for maintaining safety in commercial and industrial spaces.
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