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)
  • OS

Caution:

• • Ovens processing combustible materials are required to have a fire suppression system per NFPA 86
  • If flammable solvents or vapors are present in an oven, OSHA requires conformance with NFPA 86 Class A Oven requirements.  A powered forced exhauster and other non-standard safety equipment must be added.  See Class A Equipment for Solvent Processing resource page for more information.

Safety Equipment

• Adjustable manual reset excess temperature interlock to turn off heat on malfunction of main temperature controller
• 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
• Electric Heat Includes
  • Separate heating element control contactors to turn off heat on malfunction of main control contactors
• Gas heat includes:
  • Modulating burner for 1000 BTU per cubic foot natural gas at 6” water column pressure – propane available.
  • Automatic pre-ignition purge period to clear accumulated gas or fumes
  • Push button electric ignition
  • Microprocessor based electronic flame safeguard protection to continuously monitor flame and close gas valves if flame is not present
  • Powered forced exhauster to provide combustion venting
  • Exhauster air flow safety switch to close gas valves on loss of venting
  • Two pilot valves to guarantee gas flow to pilot can be stopped
  • High and Low gas pressure switches to confirm safe operating pressure range
  • Two main burner safety shut off valves with valve seat position indicator to assure gas flow to main burner can be stopped
  • Proof of closure switch on one main valve to prevent igniting pilot unless main valve is closed
  • Leak test station at each pilot and main burner valve to allow testing for leakage through valve

Controls

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

Construction

Available construction features:

Oven design can include:

• loading platforms outside oven
• storage area for parts to be heated
• vertical or horizontal recirculated air flow
• unheated vestibules to reduce heat loss from loading opening
• continuous or indexing drive
• index triggered by other machinery
• vertical lift doors tied to indexing
• light curtains for operator safety

Hearth design can include:

• solid or perforated surface
• reinforced for heavy loads
• fixtures on hearth to position parts
• dividers on hearth to isolate individual parts
• multi-level hearth

Choice of:

• • Operating temperatures to 800°F
  • Solid or perforated hearth
  • Aluminized steel or stainless steel interior
  • Recirculating air flow patterns – Vertical or Horizontal air flow
  • Single or multiple levels
  • Indexing or continuous operation
  • Electric or Gas heat
  • 208 volt, 230 volt or 460 volt, 3-phase, 60 HZ – other input power available
• All welded construction
• Heavy duty, welded structural steel hearth frame welded to vertical central shaft supported by high temperature thrust bearing at bottom and expansion bearing external to oven at the top
• Heavy duty reducer, torque limiting device and variable frequency conveyor drive
• Durable, electrically isolated, Incoloy tubular heating elements
• Heat source located in heat chamber to prevent radiant heating
• High pressure recirculating blower
• Full coverage supply and return duct work with adjustable opposed louvers
• Adjustable fresh air intake and exhaust outlet damper
• Insulated with 10 lbs per cubic foot density rockwool insulation
• Aluminized steel exterior with Trilite Green enamel finish
• Brushed stainless steel control panel face
• Heavy duty access doors with explosion venting latches
• Adjustable dampers at load/unload opening positioned near load to reduce heat loss
• Slip flashing at doorways allow inner oven to expand without affecting door sealing
• Fiberglass door gasket with stainless steel spring insert
• Fully assembled and factory tested for temperature uniformity
• 1 year limited warranty