OPTIONAL FEATURES

• 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 airflow, flame detection and safety lockout. A wiring schematic and terminal connection detail is included in the package. (This option applicable only for units with self supporting system controls as described above.)
• OUTSIDE AIR OVERRIDE - provides an automatic function used to start gas flow to the burner when the inlet air temperature has fallen below a desired setting. Also stops gas flow to the burner when inlet air has risen above desired setting.
• 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.