Dual Chamber Furnace

Space saving, over and under, heat treating and tempering furnace combination.

Outside Dimensions

• BT-122012 depth includes 14″ motor mount overhang at rear
• Assembled dimensions include 10″ control panel overhang at right and, BT-122012 motor mount overhang at rear

 Operating Characteristics

• Accuracy as percent of controller span
• Uniformity at 100°F below maximum temperature
• Rise Time in minutes to 100°F below maximum temperature
• Tests run with empty oven and minimum exhaust
• Performance will vary with load and application

Certifications

• UL Listed Control Panel
• Meets the Requirements of the Following Standards:
• NFPA 86 (Standard for Ovens and Furnaces)
• NFPA 70 (National Electric Code)
• FM (Factory Mutual)
• OSHA

Caution:

• When processing combustible material fire protection should be considered
• Not for use with flammable solvents or vapors. Other models available for these applications

Safety Equipment

• Adjustable manual reset excess temperature interlock to turn off heat on malfunction of main temperature controller
• Separate heating element control contactors to turn off heat on malfunction of main control contactors
• Recirculating blower air flow safety switch to turn off heat on loss of recirculated air flow
• Electrical interlock shuts off heat if power to recirculating blower is interrupted
• Door interlock turns off power to heating elements when door is opened to protect operator from line voltage at heating elements

Controls

• Digital temperature controller
• Motor control push buttons and on-off heat switch
• LED pilot lights
• 5 kA short circuit current rating (SCCR)

Construction

• 208 volt (at 80% of 230 volt heat input),230 volt or 460 volt, 3-phase, 60 HZ – other input power available
• All welded construction
• High temperature Kanthal A-1 coiled wire heating elements supported in rugged ceramic plates
• Heating elements located on sidewalls and ceiling of work space for excellent temperature uniformity
• High pressure stainless steel recirculating blower
• Insulated with light weight, energy saving refractory ceramic fiber
• Heavy gauge aluminized steel exterior with Trilite Green enamel finish
• Brushed stainless steel control panel face
• Side hinged door
• Removable ceramic hearth tray
• Designed to support heat treating Bench Furnace
• Fully assembled and factory tested

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Standard & custom-made Grieve ovens in action