The duct smoke detector shall be a System

Sensor Model ED-DPR Intelligent Duct

Smoke Detector to be used with com-

patible control panels. The duct smoke

detector shall be UL listed per UL 268A,

Standard for Smoke Detectors for Duct

Applications, specifically for use in air

handling systems. The detector shall oper-

ate in air velocities from 500 to 4000 feet

per minute. The detector housing shall be

equipped with an integral mounting base

capable of accommodating either the ED-

DP or ED-DPI photoelectric detector head.

It shall be capable of remote testing from

the RTS451 or RTS451KEY Remote Test

Station. The duct smoke detector housing

shall incorporate an airtight smoke cham-

ber in compliance with UL 268A. The

housing shall be capable of mounting to

either rectangular or round ducts without

adapter brackets. An integral filter system

shall be included to reduce dust and resi-

due effects, thereby reducing maintenance

and servicing. Sampling tubes shall be eas-

ily installed after the housing is mounted

to the duct by passing through the duct

housing. Terminal connections shall be of

the strip and clamp method suitable for

14-18 AWG wiring.

Architect/Engineer Specifications

Wiring diagram for ED-DPR Duct Smoke Detector with optional RA400Z

Wiring diagram for ED-DPR Duct Smoke Detector with RTS451/RTS451KEY

-

+

OPTIONAL RETURN LOOP

(–) COM LINE

TO REST OF SYSTEM

(+) COM LINE

TO REST OF SYSTEM

SLC

SLC

2

1

3

4

5

6

7

8

9

10

11

12

13

14

1

2

3

1

2

3

1

2

3

GROUND

RTS451/

451KEY

5

4

1

2

DUCT DETECTOR

RTS451/RTS451KEY

REMOTE TEST STATION

ALARM

(LED)

5

8

7

4

TEST (+)

TEST (+)

TEST (–)

TEST (–)

(–)

(+)

4

6

(+)

(–)

DUCT DETECTOR

Break Tab on RA400Z for use with ED-DPR.

RA400Z

REMOTE

ANNUNCIATOR

RED

Wiring diagram for ED-DPR Duct Smoke Detector using a UL listed control panel

Note: For terminals 9 through 14, normally closed

and normally opened relay positions are

defined with product in reset condition, not

in alarm.