3Important InformationThis manual contains important operating andsafety information. You must carefully read andunderstand the contents of this manual prior tothe use of this equipment.Your Thermolyne FB1300 Model or FB1400Model Furnace has been designed with function,reliability, and safety in mind. It is your responsi-bility to install it in conformance with local elec-trical codes. For safe operation, please payattention to the alert signals throughout the man-ual.WarningsTo avoid electrical shock, this furnace must:1. Use a properly grounded electrical outletof correct voltage and current handlingcapacity.2. Be disconnected from the power supplybefore servicing.3. Have the door switch operating properly.To avoid burns:1. “Caution: Hot Surface. Avoid Contact.”Do not touch the exterior or interior sur-faces of the furnace during use or for aperiod of time after use.To avoid personal injury:1. Do not use in the presence of flammableor combustible materials — fire or explo-sion may result. This device containscomponents which may ignite suchmaterial.2. Refer servicing to qualified personnel.Safety InformationWarningWarnings alert you to apossibility of personal injury.CautionCautions alert you to apossibility of damage to theequipment.NoteNotes alert you to pertinent factsand conditions.Hot SurfaceHot surfaces alert you to apossibility of personal injury ifyou come in contact with asurface during use or for aperiod of time after use.Alert Signals