Horizontal Air Flow Cabinet Ovens

BULLETIN CA-400 HEAVY DUTY ELECTRIC AND GAS HORIZONTAL AIR FLOW CABINET OVENS

Standard Features Specifications Standard Equipment Additional Equipment

MODEL HA-650 GAS WITH STANDARD MODULATING BURNER SYSTEM	MODEL HC-850 ELECTRIC WITH OPTIONAL PROGRAMMING TEMPERATURE CONTROLLER AND RECORDING THERMOMETER

STANDARD FEATURES  Back to Top

• UL LISTED CONTROL PANEL
  


• Standard 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
  —Modulating burner on gas 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
  —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
  —Adjustable patented opposed louvers on full coverage supply and return duct work
  —304 stainless steel interior
  —Aluminized steel exterior with enamel finish
  —Brushed stainless steel control panel face
  —Built-in baffles prevent radiant heat
  —Exceptionally heavy duty doors and door frame with explosion venting latches
  —High temperature door gasket with stainless steel spring insert
  —Two (2) nickel plated wire shelves
  —Channel shelf supports prevent shelves tipping
  —Adjustable fresh air intake and exhaust dampers
  —High pressure recirculating blower
  —All welded construction
  —10 lbs/cf density industrial rockwool insulation
  —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 Insu- lation Doors Heat Input Operating Characteristics† Approx Shipping Weight Model Dimensions (WxDxH) Volume Cu Ft CFM HP kW BTU/HR Control Accuracy Oven Uniformity Rise Time Electric Gas HA-500 20" x 20" x 20" 4.6 36" x 32" x 54" 500°F 400 1/3 4" Single 6 50,000 ±0.3% ±4°F 20 min 12 min 680 lbs HA-500 HA-650 20" x 20" x 20" 4.6 40" x 36" x 58" 650°F 400 1/3 6" Single 8 50,000 ±0.3% ±5°F 22 min 15 min 820 lbs HA-650 HA-850 20" x 20" x 20" 4.6 40" x 36" x 58" 850°F 600 1/2 6" Single 10 75,000 ±0.3% ±7°F 40 min 25 min 880 lbs HA-850 HX-500 38" x 20" x 26" 11.4 54" x 32" x 60" 500°F 600 1/2 4" Double 6.6 50,000 ±0.3% ±4°F 37 min 24 min 1200 lbs HX-500 HX-650 38" x 20" x 26" 11.4 58" x 36" x 64" 650°F 600 1/2 6" Double 10 75,000 ±0.3% ±5°F 33 min 21 min 1300 lbs HX-650 HX-850 38" x 20" x 26" 11.4 58" x 36" x 64" 850°F 600 1/2 6" Double 15 125,000 ±0.3% ±7°F 45 min 27 min 1350 lbs HX-850 HB-500 38" x 26" x 38" 21.7 54" x 38" x 72" 500°F 600 1/2 4" Double 9 75,000 ±0.3% ±4°F 38 min 22 min 1370 lbs HB-500 HB-650 38" x 26" x 38" 21.7 58" x 42" x 76" 650°F 600 1/2 6" Double 15 25,000 ±0.3% ±5°F 40 min 24 min 1650 lbs HB-650 HB-850 38" x 26" x 38" 21.7 58" x 42" x 76" 850°F 800 3/4 6" Double 20 150,000 ±0.3% ±7°F 45 min 30 min 1700 lbs HB-850 HY-500 38" x 38" x 38" 31.8 54" x 50" x 72" 500°F 800 3/4 4" Double 12 100,000 ±0.3% ±4°F 42 min 25 min 1925 lbs HY-500 HY-650 38" x 38" x 38" 31.8 58" x 54" x 76" 650°F 800 3/4 6" Double 20 150,000 ±0.3% ±5°F 44 min 29 min 2250 lbs HY-650 HY-850 38" x 38" x 38" 31.8 58" x 54" x 76" 850°F 1000 1 6" Double 30 175,000 ±0.3% ±7°F 46 min 38 min 2420 lbs HY-850 HC-500 50" x 50" x 50" 72.3 70" x 62" x 86" 500°F 2450 1 1/2 4" Double 30 150,000 ±0.3% ±4°F 25 min 24 min 3100 lbs HC-500 HC-650 50" x 50" x 50" 72.3 72" x 64" x 88" 650°F 2450 1 1/2 5" Double 40 200,000 ±0.3% ±5°F 30 min 29 min 3500 lbs HC-650 HC-850 50" x 50" x 50" 72.3 74" x 66" x 90" 850°F 3300 2 6" Double 60 350,000 ±0.3% ±7°F 30 min 25 min 3800 lbs HC-850

*All Models—Control panel overhang 9" right side. Blower motor overhang 10" right side, except HB-850 & HY Series 14" and HC Series 19". Gas Models—Burner overhang 11" left 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

F. Commonly used where work is shelf loaded and least restriction to free air passage is in the horizontal direction.

HA Series – 4.6 cubic feet, holds 6 shelves

HX Series – 11.4 cubic feet, holds 8 shelves

HB Series – 21.7 cubic feet, holds 12 shelves

HY Series – 31.8 cubic feet, holds 12 shelves

HC Series – 72.3 cubic feet, holds 8 shelves

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 on 500°F models; incoloy sheathed tubular heating elements on 650°F and 850°F models. 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.

• Additional Shelves, 200 lbs distributed load per shelf, 800 lbs maximum oven load, specify oven model when ordering.



• 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 System, incorporated into standard temperature controller, 99 hour 59 minute range, 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 time period until door is opened or timer reset; 1, 5, 10 or 30 hour range
  Option BT



• 304 Stainless Steel Components, including blower wheel, hardware and two stainless steel expanded metal shelves, specify oven model when ordering.
  


• 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†