A-102-1 Electric Duct Heater Brochure - Brasch

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Special Constructions (cont.)BOTTOM OUTLET—recommended wherea flanged heater is desired with field terminalbox at the bottom of the horizontal duct.Internal terminal box contains resistancecoil terminations, automatic reset thermalcutout and secondary thermal cutouts, allprewired to terminal blocks in field terminalbox. Control components such as contactors,fuses and transformers are mountedin bottom terminal box. Not available withbuilt-in weather resistant or dusttight terminalbox.INSULATED TERMINAL BOX—recommendedwhenever heaters are used in airconditioning ducts in areas with high relativehumidity. Slip-in or flanged heaters withinsulated terminal box have insulatingboard fastened to the back of the terminalbox, between the duct and the terminal box.12 BRASCH MANUFACTURING
PROTECTIVE SCREENS—prevent accidentalcontact and possible electrical shock,especially where maintenance personnel arelikely to enter the duct near the heater.Galvanized 1/2" x 1/2" hardware cloth meshis standard. Screen also prevents debris suchas loose duct insulation, etc. from contactingheater coils.When ordering, specify:A. Inlet Side OnlyB. Outlet Side OnlyC. Both SidesOVEN HEATER—designed for heating, dryingand baking applications in industrial ovens. Airtemperatures to 1200° F are maintained byforced air circulation. Highest Grade Type A(80/20) resistance wire elements minimize oxidation.Elements are derated on an increasing scaleto match design temperature conditions. Framesare of galvanized, aluminized, or stainless steel,depending on outlet temperature. Optional featuresinclude control thermostat, high limit cutout,airflow switch, remote panel with built-in components.UL or not UL Listed.BULLETIN A<strong>102</strong>-113
Page 1 and 2: Bulletin A102-1© Brasch Manufactur
Page 3: Ratingsand SizesYou specify it—we
Page 6 and 7: Construction DetailsAutomatic reset
Page 8 and 9: Step ControllersStep controllers ar
Page 10 and 11: Special ConstructionsHeaters forDuc
Page 15 and 16: Finned TubularSLIP-IN AND FLANGED
Page 17 and 18: Use these formulae as rough guideli
Page 19 and 20: How to Calculate Line CurrentsTo de
Page 21 and 22: Wiring Diagram Control System 2Mult
Page 23 and 24: Wiring Diagram Control System 4Tota
Page 25 and 26: REQUIREMENT(b) Thermostats That Do
Page 27 and 28: Express Duct Heaters 14 Day Shipmen

A-102-1 Electric Duct Heater Brochure - Brasch

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