3. Component Descripti on 3.1 Compliance To Applicable Codes This oven is designed to be in strict accordance with the National Fire Protection Association Standard Number 86, “Standard for Ovens and Furnaces." 3.2 Material Specifications All oven panels are manufactured with a minimal gauge thickness of 20. The structural steel members are all manufactured to conform to ASTM A36. 3.3 General Description 3.3.1. Work Area The work area is the area located between the doors, walls and roof where the parts to be preheated, dried or cured are placed. This parts or product in this area needs to maintain a minimal 1 foot clearance from oven components. 3.3.2. Heater/Burner Box The Heater box unit is factory assembled and tested prior to shipping. This unit contains the burner units as well as any recirculation fan required. The main control panel as well as the gas train will be located on this unit for electrical and gas utility connections. 3.3.3. Recirculation Fan(s) and Ductwork Recirculation fans are designed for the required static pressure and volume of air required for the designed amount of necessary air changes in the oven. The ductwork will need to be adjusted for even and uniform airflow throughout the oven's working area. Ductwork locations can be on the side wall or the roof of the oven. Heater boxes can be floor mounted or roof mounted depending on design. 3.3.4. Exhaust Fan(s) and Ductwork Exhaust fans are designed to remove the necessary flow to maintain a hazard free environment. The ductwork shall not run with high restriction or horizontally. The exhaust fan is equipped with an air flow switch which monitors the operation state of the fan, stopping the operation of the burner if airflow is not present. 3.4. Exhaust Flow Rates Air flow rates are calculated by using the coating in the operation as well as part load. The exhaust rates shall not be altered or slowed at any time. The oven will also require a purge time where the exhaust fan will remove a minimum of 4 times the oven volume of air before allowing the burner to light. Never place parts into the oven that were not in the ovens initial design as a hazardous environment can be created. 3.5. Control Panel The oven will have a main control panel located on the heater box unit, and another remote panel for Human Machine Interface (HMI). Electrical schematics will be located in the main control panel along with drawings
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