Automatic Radiant Floor Heating Control

18769 rev A 05/08 (800) 234-4239 http://www.networketi.com 1 of 2Environmental Technology, Inc.We Manage Heat ®®DATA SHEETAutomatic Radiant Floor Heating Control For Comfort and EnergyMODEL FWT®–3 FLOORSTAT®DESCRIPTIONThe patent pending computerized FWT–3 assures comfort with minimum energy cost by automatically controlling electric radiant ? oor heaters. The Digital Anticipation feature provides superior temperature regulation when compared to conventional thermostats. The FWT–3 continuously learns how best to control heating to maximize comfort by minimizing temperature variations.The FWT–3 provides a simple analog adjustment for setting the ? oor temperature with a range of 50° to 95°F (10° to 35°C). Setting the adjustment fully counterclockwise inhibits heating which prevents energy waste by heating FEATURES & BENEFITS• Heating comfort• Energy ef? ciency• Precision automatic control• Simple operationunoccupied areas. Status indicators show that power is present and the heaters are operating.The low voltage NEC Class 2 FWT–3 derives its power from the external UL/CSA self-powered relay. The relay is mounted in a switch box installed at a convenient location. Only two wires connect the FWT–3 with the self-powered relay.The temperature sensor is embedded in the ? oor substrate along with the heaters. This provides quick response and precise control. The 25' sensor cable plugs into the FWT–3 thus simplifying installation. Universally available telephone accessories can be used to extend the sensor cable length. A missing or shorted sensor inhibits heater operation.Voltage options include 120, 208, 240 and 277 VAC. The relay controls heater loads up to 25 amps except at 277 VAC where the maximum load is reduced to 22 amps.For complete information describing its application, installation and features, please contact Customer Service or check on the web at www.networketi.com.• Pleasing appearance• Compact• Simple installation• Low installed cost18769 rev A 05/08(800) 234-4239http://www.networketi.com2 of 2 Environmental Technology, Inc.Model FWT–3LIMITED WARRANTYETI’s two year limited warranty covering defects in workmanship and materials applies. Contact Cus tom er Service for complete warranty information.DISCLAIMEREnvironmental Technology, Inc. makes no representations or warranties, either expressed or implied, with respect to the contents of this publication or the products that it describes, and speci? cally disclaims any implied warranties of mer chant abil i ty or ? tness for any particular purpose. En vi ron men tal Technology, Inc. reserves the right to revise this pub li ca tion, and to make changes and im prove ments to the products described in this publication, with out the ob li ga tion of En vi ron men tal Tech nol o gy, Inc. to notify any person or or ga ni za tion of such revisions, chang es or improvements. INSTALLATIONInstall in accordance with the requirements of all applicable electrical and building codes and regulations.The ETI logo, Floorstat, FWT and We Manage Heat are reg is tered trademarks of En vi ron men tal Technology, Inc. Copyright © 2008 Environmental Technology, Inc. All rights reserved.ORDERING INFORMATIONOrder Number Description18541 FWT–3 Radiant Floor Heating Control* 120 VAC18542 FWT–3 Radiant Floor Heating Control* 208 VAC18543 FWT–3 Radiant Floor Heating Control* 240 VAC18544 FWT–3 Radiant Floor Heating Control* 277 VAC*** Includes temperature sensor with 25' (7.62m) sensor cable and self-powered contactor** 22 amp heater load ratingWiring Outlet Box for Line and Heater(Customer Supplied)Relay ModuleHeater CableTemperature SensorTemperature Sensor Cable