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Technical Bulletin 

 

 

SuperDuct Conventional Two-Wire Duct Smoke Detector 

 

SuperDuct Conventional Two-Wire Duct 
Smoke Detector

 

 

P/N 3100737 • Rev 1.0 • 06SEP05

 

 

Content 

Introduction ............................................................................1

 

Related documents ..................................................................1

 

Duct smoke detector limitations ...............................................1

 

Product description ...............................................................1

 

Overview ..................................................................................1

 

Description ...............................................................................2

 

Features ...................................................................................2

 

Specifications ...........................................................................3

 

Accessories..............................................................................3

 

Operation ................................................................................4

 

Controls and indicators.............................................................4

 

Normal state.............................................................................4

 

Alarm state ...............................................................................4

 

Trouble state ............................................................................4

 

Installation ..............................................................................4

 

Installation guidelines ...............................................................4

 

Installation sequence................................................................5

 

Installing the sampling tube from the front of the detector........5

 

Supporting sampling tubes greater than 36 inches long ..........5

 

Wiring .......................................................................................6

 

Maintenance and service.......................................................6

 

Recommended service schedule .............................................6

 

Testing the duct smoke detector ..............................................6

 

Troubleshooting .......................................................................6

 

Cleaning the duct smoke detector............................................6

 

 

Introduction 

This document provides technical information for the 
SuperDuct Conventional Two-Wire Duct Smoke Detector 
(referred to simply as duct smoke detector for the remainder of 
this document.) 

This document applies to the following duct smoke detector 
models: ESD-2W and SD-2W. 

Related documents 

In addition to this document, important information regarding 
the proper installation and maintenance of duct smoke 
detectors is provided in the following standards: 

• NFPA 

70 

National Electrical Code

 

• NFPA 

72 

National Fire Alarm Code

 

• NFPA 

90A 

Installation of Air Conditioning and 

Ventilating Systems

 

• UL 

268A 

Smoke Detectors for Duct Applications

 

• ULC 

529 

Smoke Detectors for Fire Alarm Systems

 

• NEMA

 Guide for Proper Use of Smoke Detectors in Duct 

Applications

 

Duct smoke detector limitations 

SuperDuct duct smoke detectors will not operate without 
electrical power. 

SuperDuct duct smoke detectors will not operate as designed 
outside of the listed electrical and environmental 
specifications. 

SuperDuct duct smoke detectors will not sense smoke unless 
the ventilation system is operating and the sensor’s cover is 
properly installed. 

SuperDuct duct smoke detectors may not operate as designed 
unless installed in accordance with these instructions and all 
applicable national and local codes as determined by the local 
authority having jurisdiction. 

Product description 

Overview 

The duct smoke detector is used to detect smoke in the 
protected premises’ HVAC system under extended 
temperature ranges. It can be installed in self-contained 
commercial rooftop HVAC systems where the HVAC 
components (compressor, condensing unit, heating coils, etc.) 
are enclosed in a single package to protect them from adverse 

Содержание SuperDuct ESD-2W

Страница 1: ...ation and maintenance of duct smoke detectors is provided in the following standards NFPA 70 National Electrical Code NFPA 72 National Fire Alarm Code NFPA 90A Installation of Air Conditioning and Ven...

Страница 2: ...is directed back into the ventilation system through an exhaust tube The difference in air pressure between the two tubes pulls the sampled air through the sensing chamber When a sufficient amount of...

Страница 3: ...limited Quantity 1 Type Form C Ratings 2 0 A at 30 Vdc resistive Detector operating voltage 16 to 30 Vdc Detector operating current Startup 200 A Standby 70 A Alarm 5 to 100 mA Alarm impedance 50 to 7...

Страница 4: ...the alarm state the duct smoke detector s Alarm LED turns on Common alarm relay contact switches position Remote alarm LED output turns on is activated In addition the duct smoke detector places a low...

Страница 5: ...2 Drill the mounting holes using the drill template provided 3 Assemble the detector 4 Mount the detector on the HVAC duct 5 Verify the detector pressure differential Installing the sampling tube fro...

Страница 6: ...nished testing the duct smoke detector reset the control panel in order to restore the detector to its normal state Troubleshooting You can troubleshoot problems while the duct smoke detector is in op...

Страница 7: ...r 1 Remove the detector s cover then power down the detector by disconnecting the initiating device circuit wiring 2 Using a vacuum cleaner clean compressed air or a soft bristle brush remove loose di...

Страница 8: ...nventional Two Wire Duct Smoke Detector 8 70 in 22 1 cm 7 75 in 19 7 cm 8 15 in 20 7 cm 2 28 in 5 78 cm 5 45 in 13 84 cm 5 40 in 13 72 cm 1 38 in 3 51 cm 1 90 in 4 83 cm 3 08 in 7 82 cm 1 60 in 4 06 c...

Страница 9: ...vice on the same circuit is activated 1 2 3 4 Alarm SD TRK or SD TRM 2 Figure 8 Installation wiring diagram IDC short circuit current 100 mA 6 5 11 12 14 13 15 16 17 10 8 Auxiliary equipment CAUTION D...

Страница 10: ...Technical Bulletin 10 SuperDuct Conventional Two Wire Duct Smoke Detector...

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