XLT Ovens XLT Installation & Operation Manual

XLT Ovens XLT Installation & Operation Manual Manual pdf 44 page image

44Hood DescriptionThe AVI Hood System consists of three (3) major parts, the main canopy, the shrouds, andthe Variable Frequency Drive (VFD) exhaust fan controller.The main canopy serves to collect heat and products of combustion and transmits the efflu-ents to the exhaust fan. It houses filters, lights, and switches. The switches control both the hoodand ovens. The main canopy size is dependent upon oven size.The shrouds assist the efficiency of the main canopy by entrapping heat and products ofcombustion. They are configurable for either side or end loading or unloading, and are easily re-movable for cleaning and maintenance.The VFD control box operates at 208/230 VAC single phase, 50/60 Hz. All electric utili-ties for the hood, oven(s), and exhaust fan connect to the VFD control box. The control boxhouses a variable frequency drive, fuses, receptacles, and relays. The VFD converts the single-phase input power to adjustable three-phase output power to vary the speed of the exhaust fan.The oven(s) plug in to the receptacles to provide a safety interlock. The optional relays providefire suppression interlocks and interlocks for up to three (3) HVAC dampers.All AVI hoods are available pre-piped for fire suppression, allowing for simple, in-fieldinstallations..End Shroud Panel(size specific)Front Shroud PanelVFD Control BoxOven & HoodSwitchesMain CanopyDuct CollarProduct Take-OffShelves (optional)NOTEMost illustrations in this manual show the ovens and hood in a double stack configura-tion. All instructions apply to single and triple stack configurations unless noted other-wise.AVI Exhaust Hood