Class 100
Cabinet Ovens

BULLETIN
CA-460

 

CLASS 100
CLEAN ROOM
HORIZONTAL AIR FLOW
CABINET OVENS


For processes where eliminating particle contamination is required, such as sterilization, depyrogenation, curing and drying. These electrically heated ovens come in five sizes with features to provide a low particle count Class 100 atmosphere inside. Operating temperatures to 500°F with work space volumes ranging from 5 to 38.3 cubic feet. Exterior construction minimizes particle generation. Heavy duty units equally suited for pharmaceutical or industrial applications.

Standard Features
Specifications
Standard Equipment
Additional Equipment
CLB-500
WITH SAFETY EQUIPMENT FOR HANDLING FLAMMABLE
SOLVENTS - SEE BULLETIN TC-940		 MODEL CLD-500
WITH OPTIONAL PROGRAMMABLE TEMPERATURE CONTROLLER

 



STANDARD FEATURES  Back to Top

  • UL LISTED CONTROL PANEL
  • Standard Class 100 Cabinet 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
    —Solid state heating element relay
    —Motor control push buttons and on-off heat switch
    —Easy-to-see pilot lights

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

  • Class 100 Construction
    —Recirculation HEPA filter, stainless steel, high temperature, 99.97% efficient on 0.3 micron particles
    —Direct driven stainless steel recirculating blower
    —Silicone rubber blower shaft seal
    —Stainless steel interior — type 304, 2B finish
    —Continuously back-welded seams on oven interior
    —Easy to remove interior duct work for cleaning
    —Incoloy sheathed tubular heating elements
    —D.O.P. test port upstream of HEPA filter
    —Positive latching door hardware
    —Silicone rubber door seal
    —Sealed penetrations for heaters and thermocouples
    —Adjustable fresh air inlet — optional HEPA filter with — prefilter available
    —Adjustable exhaust outlet — optional HEPA filter available
    —Two (2) stainless steel shelves
    —Channel shelf supports prevent shelves tipping
    —Brushed stainless steel control panel face and door cover
    —Aluminized steel exterior with white epoxy paint — optional brushed stainless steel exterior available
    —1 year limited warranty

    •
  • Every oven fully assembled and individually factory tested


    SPECIFICATIONS  Back to Top
     CAUTION: OVENS PROCESSING COMBUSTIBLE MATERIAL ARE REQUIRED BY NATIONAL FIRE PROTECTION ASSOCIATION STANDARD 86 TO HAVE A FIRE SUPPRESSION SYSTEM. IF FLAMMABLE SOLVENTS OR VAPORS ARE PRESENT IN AN OVEN, OSHA REQUIRES CONFORMANCE WITH NFPA 86 WHICH DEFINES OVENS FOR THESE APPLICATIONS AS CLASS A OVENS. A POWERED FORCED EXHAUSTER AND OTHER NONSTANDARD SAFETY EQUIPMENT MUST BE ADDED. SEE BULLETIN TC-940 AND CONSULT FACTORY.
    Model
    Work Space
    Outside‡
    Dimensions
    (WxDxH)
    Max
    Temp
    Blower
    Recirculation
    HEPA Filter*
    (WxDxH)
    Insu-
    lation
    Doors
    KW
    Operating Characteristics†
    Approx
    Shipping
    Weight
    Model
    Dimensions
    (WxDxH)    		 Volume
    Cu Ft    		 CFM HP Control
    Accuracy    		 Oven
    Uniformity    		 Rise Time
    CLA-500 24" x 24" x 15" 5 62" x 36" x 48" 500°F 250 1/2 12" x 6" x 12" 4" Single 8 ±0.3% ±4°F 30 min 760 lbs CLA-500
    CLB-500 24" x 36" x 27" 13.5 62" x 48" x 60" 500°F 600 3/4 24" x 6" x 24" 4" Single 10 ±0.3% ±4°F 33 min 1100 lbs CLB-500
    CLC-500 36" x 36" x 27" 20.3 76" x 48" x 60" 500°F 750 1 30" x 6" x 24" 4" Single 15 ±0.3% ±4°F 29 min 1370 lbs CLC-500
    CLD-500 36" x 36" x 39" 29.3 76" x 48" x 72" 500°F 1000 1 1/2 30" x 6" x 24" 4" Single 20 ±0.3% ±4°F 26 min 1650 lbs CLD-500
    CLE-500 36" x 36" x 51" 38.3 76" x 48" x 84" 500°F 1500 2 30" x 6" x 24" 4" Single 30 ±0.3% ±4°F 21 min 1940 lbs CLE-500
    *Model CLE-500 utilizes two (2) filters.
    ‡Width increases 6" if recording instrument is installed.     		†Accuracy as percent of controller span. Uniformity at 50°F below maximum temperature. Rise Time in minutes to 50°F below maximum temperature. Tests run with empty oven and minimum exhaust. Performance will vary with load and application. See Bulletin TC-920 for additional details.


    STANDARD EQUIPMENT  Back to Top
  • Standard Electric Characteristics
    — 208 volts, 3-phase, 60 Hz
    — 230 volts, 3-phase, 60 Hz
    — 460 volts, 3-phase, 60 Hz
    — Other electrical characteristics available

    • These Class 100 ovens come in five sizes:
  • CLA-500
    • – 5.0 cubic feet, holds 4 shelves
  • CLB-500
    • – 13.5 cubic feet, holds 8 shelves
  • CLC-500
    • – 20.7 cubic feet, holds 8 shelves
  • CLD-500
    • – 29.3 cubic feet, holds 12 shelves
  • CLE-500
    • – 38.3 cubic feet, holds 16 shelves

    They feature full horizontal air flow and adjustable patented opposed louvers on full coverage supply and return duct work. Stainless steel (type 304, 2B finish) interior with continuously back-welded seams and easily removable interior duct work for cleaning. Recirculated air flow is continuously passed through a high temperature HEPA filter to remove particles. High temperature HEPA filter has stainless steel housing and is 99.97% efficient on 0.3 micron particles.

    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 solid state heating element relay 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. Exhaust outlet 4" diameter.

    Mechanical enclosure covers recirculating blower motor, heating element terminal box, air flow safety switch and other components to provide continuous exterior surface for easy cleaning.

    Outer door cover and control panel face constructed from #4 brushed finish, type 304 stainless steel. Aluminized steel exterior finished with white epoxy enamel paint.

    Two (2) reinforced 100 lbs uniformly distributed load capacity stainless steel shelves; shelf support channels on 3" centers.
    Circulation Diagram
    ( Front View )
    Heated air is forced through HEPA filter prior to entering work space and then passes between shelves and across parts.


    ADDITIONAL EQUIPMENT AVAILABLE  Back to Top See Bulletin TC-960 for modifications and other optional equipment.