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Class 100
Truck Ovens

BULLETIN
WI-462

CLASS 100
CLEAN ROOM
HORIZONTAL AIR FLOW
TRUCK OVENS


 

For truck processing where eliminating particle contamination is required. Applications include 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 57.8 to 163.6 cubic feet. Exterior construction minimizes particle generation. Heavy duty units equally suited for pharmaceutical or industrial applications.

STANDARD FEATURES Back to Top
UL LISTED CONTROL PANEL
  Standard Class 100 Truck 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
— LED pilot lights


Safety Equipment
— Adjustable, thermocouple actuated, manual reset excess temperature interlock
— 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
—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
—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
—Insulated floor with removable truck wheel guides
—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 NON-STANDARD SAFETY EQUIPMENT MUST BE ADDED. SEE BULLETIN TC-940 AND CONSULT FACTORY.
Model
Work Space
Outside
Dimensions
(WxDxH)
Max
Temp
Blower
Recirculation HEPA Filter
Insu-
lation
Doors
KW
Operating Characteristics†
Approx
Shipping
Weight
Dimensions
(WxDxH)
Volume
Cu Ft
CFM HP Qty (WxDxH) Control
Accuracy
Oven
Uniformity
Rise Time
TLA-500 36" x 42" x 66" 57.8 91" x 59" x 107" 500°F 2400 3 2 30" x 12" x 24" 6" Single 30 ±0.3% ±5°F 45 min 3005 lbs
TLB-500 42" x 42" x 66" 67.4 97" x 59" x 107" 500°F 2400 3 2 30" x 12" x 24" 6" Single 40 ±0.3% ±5°F 40 min 3175 lbs
TLC-500 42" x 54" x 66" 86.6 98" x 71" x 107" 500°F 3800 5 4 24" x 12" x 24" 6" Single 45 ±0.3% ±5°F 40 min 3585 lbs
TLD-500 42" x 78" x 66" 125.1 98" x 94" x 107" 500°F 5500 5 4 30" x 12" x 24" 6" Single 60 ±0.3% ±5°F 35 min 4325 lbs
TLE-500 42" x 102" x 66" 163.6 98" x 119" x 107" 500°F 7200 7 1/2 6 30" x 12" x 24" 6" Single 80 ±0.3% ±5°F 35 min 5120 lbs

.
†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

All Models
— 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 and include insulated floors with removable truck wheel guide tracks. They feature full horizontal air flow and adjustable opposed louvers on full coverage supply and return duct work. Easily removable
interior duct work for cleaning.

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.

Stainless steel (type 304, 2B finish) interior with continuously back-welded seams. Recirculated air flow is continuously passed through high temperature HEPA filters to remove particles. High temperature HEPA filters have stainless steel housing and are 99.97% efficient on 0.3 micron particles.

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.

Optional loading trucks hold nine(9) shelves on 6" vertical centers and are all welded stainless steel construction including stainless steel casters. Loading trucks are moved to and from oven on optional transfer dollies.


Circulation Diagrams
(Front View)

Heated air is forced through
HEPA filters prior to entering work space
and then passes between truck shelves and
across parts.

 

Pass Through Construction, includes additional door on rear of oven and stainless steel flange to seal oven in factory wall
Option PTC


Polished Front Welded Interior Seams, including 1/2" radius inside corners, in lieu of back-welded seams
Option PS


HEPA Fresh Air Filter, 12" x 12" x 6", 99.97% efficient at 0.3 micron particle size, with 2" thick prefilter. Installed in stainless steel housing over the fresh air inlet on the right side of the oven inside the mechanical enclosure
Option HFA


HEPA Exhaust Filter, 12" x 12" x 6", stainless steel high temperature, 99.97% efficient at 0.3 micron particle size. Installed in stainless steel housing over the exhaust outlet on the top of the oven. Adds 15" to overall oven height
Option HEF


Pressure Gauge, 0-2" water column static pressure gauge, installed across either recirculation filter, fresh air filter or exhaust filter, to measure pressure drop across filter. For use in determining when filters require replacement
Option PG


Pressurizing Blower, installed in conjunction with HEPA fresh air filter to maintain positive pressure within the oven, 50 CFM capacity
Option PB

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

Companion Trucks and Shelves
Oven
Model

Truck Shelf
Dimensions
(W x D)

Maximum
Shelves
Truck
Truck
Shelves†
Transfer
Dolly
1000 lbs
Capacity
TLA-500 
30" x 36" 9
TRKTLA
SHLFTLA
TDTLA
TLB-500  
TLD-500‡
36" x 36" 9
TRKTLBD
SHLFTLBD
TDTLBD
TLC-500  
TLE-500‡
36" x 48" 9
TRKTLCE
SHLFTLCE
TDTLCE
†Stainless steel shelves rated 100 lbs uniformly distributed.
‡Models TLD-500 and TLE-500 hold two trucks front to rear.

Programmable Temperature Controller, microprocessor based, digital indicating, thermocouple actuated, in lieu of standard controller
Option PTC3


Recording Thermometer, thermocouple actuated, 24-hour, 10" diameter circular chart used in conjunction with standard controller
Option RT


Digital Timing Temperature Controller,
microprocessor based, digital indicating, incorperates 99 hour 59 minute timer. Starts timing when temperature reaches set point and shuts down oven at end of set time
Option DTS3
 


Digital Shut Down Timer, with continuous "hold" feature
Option SDT 


Digital Batch Timer
, for uniformly timing batch operations. Continuous alarm with door interlock; alarms at end of preset period until door is opened or timer reset
Option BT


Automatic Door Switch, turns off blower and heat when door is opened. Restores blower and heat when door is closed
Option ADS

Stainless Steel Exterior, type 304 with #4 brushed finish, in lieu of white epoxy painted aluminized steel
Option SSE
 
Automatic Door Lock, solenoid operated, interlocked with oven temperature, optional programmable temperature controller or optional digital timing system
Option ADL



 
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Specifications Subject to Change Without Notice
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