Walk in Ovens B1, B2, B3, B4
The B-1 through B-4 ovens are standard High Temperature Walk-In Ovens that 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. With a horizontal air flow pattern, they are ideally suited for drying samples in a lab. With a maximum of 122 square feet of drying space (using 10 shelves), it will handle a lot of samples. Oven required a truck and the truck tracks, which are listed as options.
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 Re-circulating 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 Re-circulating 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
Choice of air flow patterns of Horizontal or Vertical 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 with- out 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 208 volts, 3-phase, 60 Hz — 230 volts, 3-phase, 60 Hz — 460 volts, 3-phase, 60 Hz Other electrical characteristics available Exclusive construction is far superior to commonly used panel construction. Consists of an isolated inner oven completely surrounded by insulation to eliminate heat transfer from through metal and hot air leakage at panel seams. Insulated floor standard. Trilite Green enamel painted aluminized steel exterior.
Has 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. UL listed control panel enclosing terminals for incoming power, temperature controllers, push buttons
1,000 BTU natural gas at 6″ water column pressure, 1″ NPT inlet — Other gas characteristics available Control panel as detailed above and safety devices as listed on the front of this bulletin. A 325 CFM powered forced exhauster is included up to 700,000 BTU/HR; at 800,000 BTU/HR a 650 CFM exhauster is included. Both exhausters have 6″ outlets. Automatic pre-ignition purge period and push button electric ignition contributes to ease of operation. Modulating gas burner is protected with electronic flame safety relay.
16 gauge aluminized steel interior throughout; 9″ of 1250°F 10 lbs/cf density industrial rockwool insulation throughout walls, doors and ceiling; 4″ thick insulated floor with 1/8″ steel plate cover. 1050°F Models 16 gauge aluminized steel work space interior with 16 gauge 304 stainless steel heat chamber interior. Stainless steel re-circulating blower. 10″ of 1250°F 10 lbs/cf density industrial rockwool insulation throughout walls, doors and ceiling of work space. Oven heat chamber insulated with 2″ of 1900°F block surrounded by 8″ of 1250°F 10 lbs/cf density industrial rockwool insulation. 6″ thick insulated floor with 1/4″ steel plate cover.
16 gauge 304 stainless steel interior throughout. Stainless steel re-circulating blower. 12″ of insulation consisting of 2″ of 1900°F block, surrounded by 10″ 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.