4.5. Connecting Utilities Installation of the oven requires the connection of utilities. All ovens require electric service for powering the motors and controlling the oven. All gas ovens require the connection of gas service. Almost all ovens require the connection of an exhaust stack. Ovens with a dry chemical fire suppression system require that the end user contact a local fire control specialist for fire control system activation. 4.5.1. Electric Service Each Oven has one single point of connection; this connection is located in the main control panel that is located on the heater box unit. It is imperative that the electrical service be adequately sized for the usage of the oven. All electrical work should be done by a licensed electrician and per the National Electric Code and NFPA 70. The detailed drawing package as well as the approval package will address the requirements for the oven. 4.5.2. Gas Service In order to operate properly, the oven requires a specific inlet gas pressure. RTT ovens are designed to operate on a gas supply pressure maximum of 5 PSI. Do not exceed this gas pressure or gas train damage will result. An additional positive shut-off egulator located prior to the oven gas train is typically required to provide the appropriate gas pressure. A qualified mechanical contractor should be able to size the gas lines and regulators accordingly. If using LP/Propane as the fuel source the burner will need to be checked prior to connection to ensure the burner is rated for LP gas. If this is noted on the detailed drawings then the burner will be LP from the factory. If not noted or noted as Natural Gas DO NOT use the burner with LP gas. Eclipse Burner will have a model number located on a metal tag on the burner (not the blower). Model will be AH22.0###-AAN or AH22.0###-AAP N= Natural Gas P=LP/Propane 4.6. Exhaust Stack Installation Any oven that is fueled by gas and any oven that is used to process a product that contains flammable volatiles or combustible material must include a powered exhaust fan. Exhaust stack is not provided with the oven but purchased separately. If ductwork was not sent with your oven, you must contact a local mechanical contractor or supplier for the appropriate ductwork. 4.6.1. Exhaust Stack Type The type of stack required varies with exhaust temperature and the mechanical specifications of the building in which it is installed. Consult your local building and equipment authority for the relevant building code. In order to meet NFPA Standard 211 for Chimneys, Vents and Solid Fuel Burning Appliances a positive pressure stack rated for the applicable temperature is required.
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