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

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

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300 Series

Intelligent Duct Smoke DetectorsDH300RP.tif

DescriptionThe 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.

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 OrderSpecify the code number in the following selection chart

Selection Chart

Accessories

Inlet Tube Selection

Code Number Description

DH300P Intelligent Photoelectric Smoke Detector in Duct Housing

DH300RPIntelligent Photoelectric Smoke Detector with DPDT Relay in Duct Housing

Code Number Description

RA400Z Remote Alarm Annunciator LED

RTS451 Remote Test Station

RTS451KEY Key-activated Remote Test Station

Outside Duct Width Inlet Tube Required

Up to 2 Feet ST-1.5

2 to 4 Feet ST-3

4 to 8 Feet ST-5

8 to 10 Feet ST-10

! 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.

Specifications

Electrical Characteristics

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 Velocity152.4 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.)

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 Current300 µA @ 24 VDC (one SLC communication every 5 seconds with LED blink enabled)

Device Current Draw

DH300 6.5 mA in alarm

RA400Z10 mA maximum (DH300P), 12 mA maximum (DH300RP)

RTS451/RTS451KEY

7.5 mA maximum (DH300P), 10 mA maximum (DH300RP)

PA400Z 15 mA maximum (DH300RP)

Auxiliary Power Current Draw

DH300RP

26 mA @ 20-30 VDC (standby), 87 mA @ 20-30 VDC (alarm),65 mA @ 24 VAC (standby), 182 mA @ 24 VAC (alarm),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)