High Temperature Walk-In Ovens

BULLETIN WI-520   HEAVY DUTY ELECTRIC AND GAS 850°F 1000°F & 1200°F WALK-IN OVENS

Standard Features Specifications Standard Equipment

MODEL B1-1000 ELECTRIC WITH OPTIONAL TRUCK TRACKS AND RECORDING THERMOMETER	MODEL B4-1000 GAS WITH STANDARD MODULATING BURNER SYSTEM AND OPTIONAL TRUCK TRACKS AND RECORDING THERMOMETER

STANDARD FEATURES  Back to Top

• UL LISTED CONTROL PANEL
• Standard High Temperature Walk-In Ovens from Grieve meet the requirements of National Fire Protection Association Standard 86, Industrial Risk Insurers, Factory Mutual and OSHA standards. For some applications, such as those involving flammable solvents or hazardous locations, the above organizations require additional safety devices.

• Controls
  —Digital, microprocessor based, thermocouple actuated, indicating temperature controller
  —Modulating burner on gas-fired ovens
  —Motor control push buttons and on-off heat switch
  —Easy-to-see pilot lights
  


• Safety Equipment — Electric Oven
  —Adjustable, thermocouple actuated, manual reset excess temperature controller
  —Separate heating element control contactors
  —Recirculating blower air flow safety switch
  


• Safety Equipment — Gas Oven
  —Adjustable, thermocouple actuated, manual reset excess temperature controller
  —Electronic flame safeguard protection
  —Powered forced exhauster for combustion venting
  —Exhauster air flow safety switch
  —Recirculating blower air flow safety switch
  —Purge timer
  —High gas pressure switch
  —Low gas pressure switch
  —Two pilot safety shutoff valves with leak test stations
  —Two main safety shutoff valves with leak test stations (Industrial Risks Insurers vent valve only provided on specific request)
  —Valve position indicator on main safety shutoff valves
  —Over 400,000 BTU/HR safety shutoff valve interlocked with purge timer
  


• Construction
  —Choice of air flow patterns
  —Adjustable patented opposed louvers on full coverage supply and return ductwork
  —Exceptionally heavy duty doors
  —Explosion venting latches
  —Doors equipped with expansion joints on inner face to guarantee uniform sealing at all temperatures
  —Inner and outer door gaskets; inner gasket seals directly against door plug; outer gasket seals against front face of oven
  —3/8" steel plate oven front to guarantee rigid sealing surface at all temperatures
  —Slip flashing at door openings to allow inner oven to expand without effecting outer oven or door sealing surface
  —Aluminized steel exterior with enamel finish
  —Brushed stainless steel control panel face
  —1 year limited warranty
  


• Every oven fully assembled and individually factory tested

STANDARD EQUIPMENT  Back to Top

Electric Models
Each features completely wired, side access UL listed control panel enclosing terminals for incoming power, temperature controllers, push buttons and pilot lights. Motor starter and heating element contactors electrically interlocked to shut off heaters if power to blower is interrupted and to permit operation of blower without heat for cooling. Incoloy sheathed tubular heating elements on all models. The 1200°F models have a heat chamber high limit control.

1200°F Models
16 gauge 304 stainless steel interior throughout. Stainless steel recirculating blower. 10" of insulation consisting of 2" of 1900°F block, surrounded by 8" of 1250°F 10 lbs/cf density industrial rockwool insulation throughout walls, doors and ceiling. 7" thick insulated floor with 1/4" stainless steel plate cover.

Circulation Diagram (Front View)
B1, B2, B3, B4 Series Combination vertical and horizontal air flow.		B1H, B2H, B3H, B4H Series Full horizontal air flow.

 

Walk-In Oven Additional Equipment

Industrial Ovens & Industrial Furnaces Index

Conveyor Ovens

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Specifications Subject to Change Without Notice
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