Truck Ovens

 BULLETIN
WI-505

LOW COST
ELECTRIC AND
GAS OVENS FOR
CONVENIENT
TRUCK LOADING

 

Hard working ovens designed for baking, drying, preheating or any other application where a dependable source of heated air to 550°F is required. Complete with temperature controllers that offer the latest in heat-sensing technology and built-in floor level guide tracks that make truck loading easy.

STANDARD FEATURES Back to Top
• UL LISTED CONTROL PANEL
• Standard 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
— Modulating burner on gas ovens
— Motor control push buttons and on-off heat switch
— LED 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
— 325 CFM 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
— Valve position indicator on main safety shutoff valves

• Construction
— Choice of air flow patterns specially adapted for truck processing
— Aluminized steel interior
— Aluminized steel exterior with enamel finish
— Brushed stainless steel control panel face
— Explosion venting latches
— 6" of 10 lbs/cf density industrial rockwool insulation
— Built-in baffles prevent radiant heat
— Silicone rubber door gasket
— Insulated floor with truck tracks
— Adjustable fresh air intake and exhaust dampers
— High pressure recirculating blower
— 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
Insu-
lation
Doors
Heat Input
Operating Characteristics†
Approx
Shipping
Weight
Dimensions
(WxDxH)
Volume
Cu Ft
CFM
HP
KW
BTU/HR
Control
Accuracy
Oven
Uniformity
Rise Time
Electric Gas
TA-550 36" x 36" x 60" 45 56" x 67" x 74" 550°F 1000 3/4 6" Double 18 150,000 ± 0.3% ± 5°F 30 min 15 min 2030 lbs
TB-550 48" x 48" x 60" 80 67" x 79" x 74" 550°F 1200 1 6" Double 24 175,000 ± 0.3% ± 5°F 25 min 15 min 2400 lbs
TAH-550 36" x 36" x 60" 45 56" x 67" x 74" 550°F 1600 1-1/2 6" Double 18 150,000 ± 0.3% ± 5°F 30 min 15 min 2130 lbs
TBH-550 48" x 48" x 60" 80 67" x 79" x 74" 550°F 2000 2 6" Double 24 175,000 ± 0.3% ± 5°F 25 min 15 min 2550 lbs
*All Models—Blower motor overhang 10" rear. Control panel overhang 9" right side.
Gas Models—Burner overhang 15" right side. 		†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

Insulated floor with truck wheel guide tracks. Aluminized steel interior and Trilite Green enamel painted aluminized steel exterior.

 • 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. Alloy wire heating elements. Exhaust outlet 4" diameter.

 • Gas Models
— 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. 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.

TA AND TB SERIES
Combination Air Flow
These electric or gas models come in two sizes. They feature combination vertical and horizontal air flow for truck processing of various size parts at temperatures to 550°F.

• TA Series
Size 36" x 36" x 60" high provides 45 cubic feet of work space. Truck tracks 2" wide, 24" center to center. Optional companion truck holds twelve 30" x 30" shelves on 4" centers.
• TB Series
Size 48" x 48" x 60" high provides 80 cubic feet of work space. Truck tracks 2" wide, 36" center to center. Optional companion truck holds twelve 42" x 42" shelves on 4" centers.
TAH AND TBH SERIES
Horizontal Air Flow
Similar to TA and TB Series, these electric or gas models feature full horizontal air flow with adjustable patented opposed louvers on full coverage supply and return duct work. Used when vertical air flow through the load is restricted. Ideal for processing flat sheets, pans of parts or when shelves are densely packed.




Circulation Diagrams
(Front View)

TA and TB Series
Heated air is provided from
both sides and pulled upward
through the load.

 

TAH and TBH Series
Heated air is blown sideways
between truck shelves and
across parts.
• Automatic Door Switch, turns off blower and heat when door is opened. Restores blower and heat on electric models, blower only on gas models, when door is closed
Option ADS 

• Roof Mounted Powered Forced Exhausters‡
Capacity HP Outlet
Diameter		 Height
80 CFM 1/8 4" 16"
130 CFM 1/3 4" 20"
325 CFM 1/3 6" 23"
650 CFM 1/2 6" 23"
‡Gas ovens include 325 CFM exhauster.
Electric ovens may require additional heat input.

 
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
Maximum
Shelves
Truck
Truck
Shelves†
700 lbs
Capacity
1200 lbs
Capacity
TA-550
TAH-550
30" x 30"
12
TRK700TA
TRK1200TA
SHLFTA
TB-550
TBH-550
42" x 42"
12
TRK700TB
TRK1200TB
SHLFTB
†Nickel plated wire shelves rated 100 lbs uniformly distributed.

• 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

• Programmable Recording Temperature Controller, microprocessor based, thermocouple actuated, digital display, 24-hour, 10" diameter circular chart, in lieu of standard controller
Option PRTC3
• 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

 • Shut Down Timer, with continuous "hold" feature; 1, 5, 10 or 30 hour range
Option SDT

• 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; 1, 5, 10, or 30 hour range
Option BT
 
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Specifications Subject to Change Without Notice
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