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Horizontal Air Flow
Cabinet Ovens

Cabinet oven picture

BULLETIN
CA-400

HEAVY DUTY
ELECTRIC AND GAS
HORIZONTAL AIR FLOW
CABINET OVENS


 


These units, backed by years of experience, quality construction and precise engineering, provide exceptional temperature uniformity. Horizontal air flow passes heated air across each shelf level. Six sizes from 4.6 to 72.3 cubic feet. For closely controlled production work at temperatures up to 850°F.

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
— LED pilot lights


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

Safety Equipment — Gas Oven
— Adjustable, thermocouple actuated, manual reset excess temperature interlock

— 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 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 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
HA-550 20" x 20" x 20" 4.6 40" x 36" x 58" 550°F 400 1/3 6" Single 6 50,000 ±0.3% ±4°F 20 min 12 min 805 lbs 
HA-700 20" x 20" x 20" 4.6 44" x 40" x 62" 700°F 400 1/3 8" Single 8 50,000 ±0.3% ±5°F 22 min 15 min 970 lbs
HA-850 20" x 20" x 20" 4.6 44" x 40" x 62" 850°F 600 1/2 8" Single 10 75,000 ±0.3% ±7°F 40 min 25 min 1030 lbs
HX-550 38" x 20" x 26" 11.4 58" x 36" x 64" 550°F 600 1/2 6" Double 8 50,000 ±0.3% ±4°F 37 min 24 min 1375 lbs
HX-700 38" x 20" x 26" 11.4 62" x 40" x 68" 700°F 600 1/2 8" Double 10 75,000 ±0.3% ±5°F 33 min 21 min 1505 lbs
HX-850 38" x 20" x 26" 11.4 62" x 40" x 68" 850°F 600 1/2 8" Double 15 125,000 ±0.3% ±7°F 45 min 27 min 1555 lbs
HB-550 38" x 26" x 38" 21.7 58" x 42" x 76" 550°F 600 1/2 6" Double 10 75,000 ±0.3% ±4°F 38 min 22 min 1590 lbs
HB-700 38" x 26" x 38" 21.7 62" x 46" x 80" 700°F 600 1/2 8" Double 15 25,000 ±0.3% ±5°F 40 min 24 min 1900 lbs
HB-850 38" x 26" x 38" 21.7 62" x 46" x 80" 850°F 800 3/4 8" Double 20 150,000 ±0.3% ±7°F 45 min 30 min 1950 lbs
HZ-550 38" x 26" x 50" 21.7 58" x 42" x 88" 550°F 600 3/4 6" Double 15 75,000 ±0.3% ±4°F 38 min 22 min 1975 lbs
HZ-700 38" x 26" x 50" 21.7 62" x 46" x 92" 700°F 600 3/4 8" Double 20 25,000 ±0.3% ±5°F 40 min 24 min 2305 lbs
HZ-850 38" x 26" x 50" 21.7 62" x 46" x 92" 850°F 800 1 8" Double 30 150,000 ±0.3% ±7°F 45 min 30 min 2455 lbs
HY-550 38" x 38" x 38" 31.8 58" x 54" x 76" 550°F 800 3/4 6" Double 15 100,000 ±0.3% ±4°F 42 min 25 min 2180 lbs
HY-700 38" x 38" x 38" 31.8 62" x 58" x 80" 700°F 800 3/4 8" Double 20 150,000 ±0.3% ±5°F 44 min 29 min 2540 lbs
HY-850 38" x 38" x 38" 31.8 62" x 58" x 80" 850°F 1000 1 8" Double 30 175,000 ±0.3% ±7°F 46 min 38 min 2710 lbs
HC-550 50" x 50" x 50" 72.3 74" x 66" x 90" 550°F 2450 1 1/2 6" Double 30 150,000 ±0.3% ±4°F 25 min 24 min 3485 lbs
HC-700 50" x 50" x 50" 72.3 76" x 68" x 92" 700°F 2450 1 1/2 8" Double 40 200,000 ±0.3% ±5°F 30 min 29 min 3905 lbs
HC-850 50" x 50" x 50" 72.3 78" x 70" x 94" 850°F 3300 2 8" Double 60 350,000 ±0.3% ±7°F 30 min 25 min 4230 lbs
  *All Models—Control panel overhang 9" right side. Blower motor overhang 10" right side, except
HB-850 & hz & HY Series 14" and HC Series 19".
Gas Models—Burner overhang 15" 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

All Models
— 208 volts, 3-phase, 60 Hz
— 230 volts, 3-phase, 60 Hz
— 460 volts, 3-phase, 60 Hz
— Other electrical characteristics available

Two (2) reinforced 200 lbs uniformly distributed load capacity, nickel plated wire shelves; shelf support channels on 3" centers (6" on HC Series).

304 stainless steel interior with carbon steel blower and plated hardware. Trilite Green enamel painted aluminized steel exterior.

These electric or gas models come in five sizes. They feature full horizontal air flow for shelf processing at temperatures to 850
°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
HZ Series – 28.6 cubic feet, holds 16 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. Iincoloy sheathed tubular 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.


Circulation Diagrams
(Front View)

Heated air blown sideways
between shelves and across parts

 



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

Roof Mounted Powered Forced Exhausters
with exhauster air flow safety switch†

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.
‡550°F Models only

 
ADDITIONAL EQUIPMENT AVAILABLE Back to Top

See Bulletin TC-960 for modifications and other optional equipment.

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




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


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