Industrial Oven with Double Doors on One End and Top Burner Box
For paint curing at temperatures of 230 to 450 degree F.
Burner Box is Factory Assembled and Tested.
Oven is shipped knocked down on skids
Inside Working Dim: 7’10” Wide x 7’11” High x 15’0” Deep
Approx. Overall Dim: 9’7” Wide x 12’0” High x 15’8” Deep
Heat Input:
• 500,000 BTU/HR direct fired burner, Maxon# 405 Ovenpak with 40:1 turndown ratio
• Includes a combustion air blower with a 1/3 HP motor (230/460V, 3-phase) and non-sparking paddle wheeltype
impeller, spark igniter, stainless steel discharge sleeve, flame rod, mixing cone, and self-contained
internal air and gas proportioning valves.
Re-circulating blower:
• Heavy duty centrifugal plug fan providing 5,500 cfm (approx. 6 air changes per minute).
• 18” plug fan with a 5 HP motor (230/460V, 3 phase), v belt drives, and belt guard
Exhaust blower:
• Spark resistant belt drive blower providing 550 cfm
• 10” fan with a 1/4 HP motor (230/460V, 3 phase) and belt guard
Construction Features:
• Combination side and up flow duct with adjustable louvers for special airflow balancing. Air is heated in the
burner box and gets drawn to the side duct that runs across the entire length of the oven on both sides.
Return air is drawn up through the top rear of the oven.
• 4” tongue and groove insulated panels with side and middle support channels (slotted for minimum heat
transfer) and filled with 4# mineral wool insulation.
• Aluminized steel interior and exterior for maximum corrosion resistance and heat resistance.
• Industrial heavy duty insulated doors with high temperature door gaskets, high temperature door seals,
explosive venting door latch, heavy duty bar lock assembly, and heavy duty door handles.
• Oven is shipped completely knocked down on skids.
• Burner controls, will be factory hardwired to an electrical gutter on the burner box.
Controls:
• U.L listed electrical panel for motor control and flame control. (480V. 3-phase required)
• Yokogawa digital temperature controller for constant temperature with:
• Universal input for thermocouple
• Timer function
• 4-20 mA output signal
• Yokogawa temperature controller for high temperature limit with:
• Universal input for thermocouple
• Alarm relay outputs.
• Siemens modulating motor for gas burner control with:
• 4-20 mA input signal
• Auto/manual selector switch
• Manual forward/reverse toggle switch
• Zero and span adjustment
• Input signal override
• Selectable electronic linearization.
• Siemens burner flame safeguard control system with:
• Visual sequence indication
• Combustion air blower control
• Post-purge control
• Pre-ignition interlock
• Continuous flame monitoring
• Proven airflow switch function
• Proven low fire ignition interlock
• Direct main burner ignition (intermittent or interrupted pilot interruption)
• Integrated flame amplifier
• UV sensor or flame rod detector
• Lockout alarm terminal
• Motor control start/stop push buttons, magnetic motor starters, and overloads for the re-circulating blower
• Motor control start/stop push buttons, magnetic motor starters, and overloads for the exhaust blower
• Motor control on/off switch, magnetic motor starters, and overloads for the combustion blower
• Built in adjustable purge timer for complete air exchange inside of the oven prior to igniting the burner
• High temperature thermocouple, type J
Safety Equipment:
• Double Block gas train meeting (NFPA 86) Standard with built in gas regulator. (1 to 5 lbs gas pressure
required. Customer must state the gas pressure available with signed approval drawings.)
• Powered forced air exhaust blower.
• Exhaust blower airflow proving switch.
• Re-circulation blower air flow proving switch.
• Combustion blower air flow proving switch.
• High gas pressure switch.
• Low gas pressure switch.
