UL Listed Insert - The electric insert is a UL Listed sub-assembly.
		Controls for Standalone or Integrated Operation - Each unit is equipped with controls having the capabilities of stand alone operation or interfacing with the total integrated system controls including additional fans, hood light controls and the fire system. These controls are located either in a UL Listed Control Panel installed in the ventilation hood's utility cabinet or in a stainless steel remote panel.
		Solid Construction - Heater consist of a galvanized casing.
		Redundant Safety Controls - Units are equipped with redundant safety controls including a blower interlock and airflow switch. Units are factory assembled, tested and shipped as a complete package, consisting of the following: Electric Coil Centrifugal blower Motor and adjustable drive assembly Electric Coil safety equipment Temperature control system Contactor and overload External service disconnect Intake hood with easily removable 2" thick, UL Listed, cleanable Class 2 filters An observation port is located on the exterior of the unit to observe the coil. The unit is provided with two access doors for easy access to the Electrical Controls and Blower/Motor Assembly.
		Factory Pre-Wire of Self Supporting Unit - houses all factory pre-wired controls for normal operation. Field wiring requirements include main power connections to controls and fan motors and interlock with exhaust or other fans and/or a fire system.
		Remote Control Panel for Wall Mounting - panels contain Summer/ Winter Switch (Heat/No Heat), Temperature Selector, and Indicator Lights. Indicator lights signify power, airflow, and heat operation. A wiring schematic and terminal connection detail is included in the package.
		Motorized Back Draft Damper - prevents ambient air from entering the building when the heater unit is not in operation. The damper is installed in the intake of the heated make up air unit. The damper is opened by a UL Listed motor driven by a 120 volt current. Once the damper is open, the proving switch (located in the damper) closes and allows current to continue to the heater controls.
		Roof Curbs - constructed of 18 gauge aluminized metal with 1-inch thick, UL Listed, Class 1 foil faced fiberglass duct insulation. Available for flat or pitched roofs.