New Yaun Co. Logo
240 Chestnut Street, Liberty NY
845-292-6400
135 Chestnut St, New Paltz NY
845-256-6400
Albany NY, Toll Free Phone
518-438-6433
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 Duct Smoke Detectors
Universal Voltage Models
230 VAC, 115 VAC, 24 VAC or 24 VDC operation
2650-560 Ionization • 2650-561 Photoelectric

Firex® duct smoke detectors provide early detection of smoke and products of combustion present in air moving through an HVAC duct. These devices are designed for prevention of smoke recirculation in areas by the air handling systems. Fans, blowers, and complete systems may be shut down in the event of smoke detection. Universal voltage models will operate on any one of four input voltages (230 VAC, 115 VAC, 24 VAC or 24 VDC).
Firex® duct smoke detectors are available with either an ionization detector head (2650-560) or a photoelectric detector head (2650-561).  Each duct smoke detector contains two form “C” alarm contacts and one form “C” trouble contact.  Visual indicators are mounted on the housing front for ease of pilot and alarm status indication from high mounting locations. A manual test/reset switch is also provided on the front of the detector to make frequent testing easy.


Air sampling is accomplished by two tubes, which protrude into the duct.  An exhaust tube of one standard length (7'') is provided with each Firex duct
smoke detector. Intake sampling tubes, which must be ordered separately, are available in three standard lengths.  Duct smoke detector mounting is accomplished by the use of a mounting template and four sheet metal screws, which are provided. Also available are special UL 50 listed, NEMA 3R weatherproof enclosure (Model 0590) which can be used in appropriate outdoor or indoor applications for protection from the elements.

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The Round®
Mercury-Free Thermostat

The world ’s most popular thermostat has taken a turn for the future — with mercury--free models. Built on the proven performance and reliability of Honeywell tradition, The Round ® Mercury-Free Thermostat features a precision electronic switch that completely eliminates the need for mercury. The display features an enlarged scale that makes it easier than ever to set the temperature exactly where you want it. And since The Round offers precise temperature accuracy, you ’ll know that what you set is what you ’ll get. From its classic design to its ease of use, The Round Mercury-Free Thermostat is a true source of comfort. 

The Round® Mercury-Free Thermostat
IMPROVED DESIGN MAKES IT BETTER THAN EVER.

  • Electronic Switch Replaces mercury for environmentally friendly performance.
  • Proven Performance Accuracy and reliability has made Honeywell the number one thermostat choice of homeowners.
  • Classic Design The Round is the world's most popular thermostat.
  • Easy To See The enlarged scale and raised designations make setting the temperature easier than ever.
  • Precision Accuracy Reliable temperature control eliminates temperature swings.
  • 5-Year Warranty

Color Brochure          Digital Round



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All Rights Reserved
Last Updated:3/19/2014
yaunco@yaunco.com


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