Intelligent Duct Smoke Detectors

Controls Group 507 E. Michigan Street P.O. Box 423, Milwaukee, WI 53202 Code No. LIT-1900126 300s_ductdetect

1900126

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Rev: 02/22/01 logo:

300 Series

left ft:

Intelligent Duct Smoke Detectors

right ft: standard Sect# = 0 seQ# = 1

DH300RP.tif Description The DH300 Series photoelectric air duct smoke detectors feature an efficient housing design that samples air passing through an air handling system duct and detects if there is a developing smoke hazard. When sufficient levels of smoke are sensed, an alarm signal is initiated, which may be connected to a fire control panel monitoring the detector, and appropriate action can be taken to shut off fans and blowers, change over air handling systems, etc. This can isolate toxic smoke and fire gases or prevent their distribution throughout the areas served by the duct system.

Specifications

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300 Series Intelligent Duct Smoke Detectors Operating Temperature Range 0 to 55°C (32 to 131°F) Humidity Range

10 to 93% (non-condensing)

Duct Air Velocity

152.4 to 1219.2 meters/min (500 to 4,000 ft/min)

Dimensions (H x W x D)

13.97 x 365.13 x 69.85 cm (5.50 x 14.38 x 2.75 in.)

The 300 Series modules will operate with both FlashScan and non-FlashScan systems; however, some of their features can only be utilized with FlashScan capable control panels.

Features • addressable, analog communication • dual light-emitting diodes (LEDs) • remote alarm output

To Order Specify the code number in the following selection chart

WARNING: Duct smoke detectors are life safety devcies used to prevent the spread of smoke within a building. They should not be considered fire detection devices, even though they may be required to be connected to the building’s fire alarm system per NFPA 90A.

Selection Chart Code Number

Electrical Characteristics Description

Electrical Rating

Operating Voltage Range

15 to 32 VDC (SLC communication line voltage)

Auxiliary Power Input

DH300RP 24 VAC/DC or 120/240 VAC (separate source)

SLC Standby Current

Intelligent Photoelectric Smoke Detector in Duct Housing

DH300RP

Intelligent Photoelectric Smoke Detector with DPDT Relay in Duct Housing

Accessories

300 µA @ 24 VDC (one SLC communication every 5 seconds with LED blink enabled)

Code Number

DH300 6.5 mA in alarm Device Current Draw

Description

DH300P

10 mA maximum (DH300P), RA400Z 12 mA maximum (DH300RP)

Description

RA400Z

Remote Alarm Annunciator LED

RTS451

Remote Test Station

RTS451KEY

Key-activated Remote Test Station

RTS451/ 7.5 mA maximum (DH300P), RTS451KEY 10 mA maximum (DH300RP)

Inlet Tube Selection

PA400Z 15 mA maximum (DH300RP)

Outside Duct Width

Inlet Tube Required

Up to 2 Feet

ST-1.5

2 to 4 Feet

ST-3

Auxiliary Power Current Draw

26 mA @ 20-30 VDC (standby), 87 mA @ 20-30 VDC (alarm), 65 mA @ 24 VAC (standby), 182 mA @ 24 VAC (alarm), DH300RP 44 mA @ 120 VAC (standby), 52 mA @ 120 VAC (alarm), 25 mA @ 220/240 VAC (standby), 30 mA @ 220/240 VAC (alarm)

Alarm Auxiliary Contact Ratings

Form-C, DPDT (alarm activated Auxiliary Relay A and B), 10 amperes @ 30 VDC (resistive), 10 amperes @ 277 VAC (0.75 power factor), 240 VA @ 249 VAC (0.40 power factor); minimum switching current for auxiliary contact must be 500 mA @ 24 VDC

Supervisory Contact Ratings

Form-C SPDT Supervisory Relay, 2.0 amperes @ 30 VDC (resistive)

4 to 8 Feet

ST-5

8 to 10 Feet

ST-10

The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson © 03/01 Johnson Controls, Inc Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

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