High quality elements guarantee long stability and wide operating ranges for both humidity and temperature. Rs 2,000/ Piece(s) Get Latest Price. The Series AVFS Adjustable Air Flow Switch is specifically designed to monitor air flow in ducts and provides a 3 A contact output to indicate a change or loss of flow. Fan energy increases as the cube of the air leakage, so detecting air leakage for new HVAC installation or during routine maintenance can save the building owner money. It may be used to sense positive, negative, or differential air. Max Operating Pressure : 10 … Availability: 32 in stock. Technical Quick Guide * Entries are … 3-1/16; Mounting Location With Diaphragm Vertical; Application Senses Positive Air Pressure in a Duct -Activate a Duct Booster Fan, Electronic Air Cleaner or Humidifier; Compliance and Restrictions None. Emerson 770 1 Dual Purpose SPDT Air Switch. Be the first to review this product. The pressure differential switch is used to determine air rarefaction or air (non-aggressive gases) pressure drop. Greystone GFS … 3 1/4 in, Depth (In.) Duct Pressure and flow monitoring. $43.99 $ 43. Available with settings from 0.08" w.c. (20 Pa) up to 20" w.c. (5000 Pa). POSITIVE AIR FLOW PRESSURE SWITCH FEATURES High Sensitivity Maximum Temperature Limit of 1900 F. Simple Installation Self-Sealing Factory Mounted Sampling Tube Mounting Hardware The Tjernlund Duct Airstat senses positive pressure in a forced air heating and/or cooling system. Cost-effective and Compact Size makes DPS perfect solution for HVAC Application. x Easy to mount x >1 mio switching cycles x Highly precise setting x Long-term stability Use In ventilation and air conditioning plants to: CA1N1552E 2014-07-30 Building Technologies s 1552 Differential Pressure Switch QBM81-… for air and nonaggressive gases x For ventilation and air conditioning plants x To monitor air filters, air flow, fan belts x To monitor pressure in clean rooms, kitchens etc. Duct Pressure Switches. Sealing leaks in air ducts reduces air leakage, optimizes energy efficiency, and controls the entry of pollutants into the building. Duct Fixing Kit - for Pressure Switches. 3 1/4 in, Mounting … $29.10 OEM Upgraded Replacement for Goodman … The Duct Airstat can be used to initiate such auxiliary devices as: Duct Boosters, Electronic Air Cleaners, Electrical Duct Heaters, and Humidifiers. It will automatically turn on and off the Vortex VTX400P inline blower as required. x. An airflow switch for sensing airflow or lack of same in an air duct comprising a housing base, mounting in side-by-side relation an adjustable range spring and a single-pole double-throw snap action microswitch, with the microswitch having its actuating lever operated by a bellcrank type input lever against an adjustable spring bias applied thereto by the range spring, with the housing base having an … The switch is suitable both for vertical and horizontal installation. Dwyer Series ADPS HVAC Differential Pressure Switch . Duct Fixing Kit - for Pressure Switches; Zoom-37%. A Duct Fixing Kit to be used with all air pressure switches and sensors. The kit consists of 2m (6.56 ft), 5mm (0.20") i/d plastic tubing, 2 x pilot tubes and 4 x fixing screws. Single pole, single throw, snap-acting switch. Get it as soon as Thu, Jan 7. Air pressure combined with air duct leakage can lead to a loss of energy in a HVAC system. … 99. FREE Shipping by Amazon. 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