Direct Gas Make-Up Air96. Install Exhaust Fan OptionsInstall hinges (an optional hinge kit is available frommanufacturer) with restraining cables and optionalgrease trap with drain connection.7. Install Supply UnitUse a crane and a set of spreader bars hooked to thefactory lifting lugs to lift and position the unit on thecurb extension and equipment support(s). The use ofall lifting lugs and a set of spreader bars is mandatorywhen lifting unit.Fasten the unit to the curb extension and equipmentsupport(s) using appropriate methods. The installeris responsible for determining appropriate supportand fastening methods to ensure compliance with allapplicable codes.Exhaust FanInstalling Exhaust Fan5. Install Exhaust FanFasten exhaust fan to curb extension using appropriatemethods. Installing the exhaust fan prior to thesupply unit will allow for easier installation of options.NFPA 96 requires the exhaust fan to be hinged. Followinstructions included with the exhaust fan.Installing Supply UnitComplete Combination InstallationInstallationOutdoor Unit Mounting8. Assemble and Attach Shipped loose ModulesUsing sheet metal screws, assemble optional shippedloose modules. Fasten the cover seams and verticalpanels on each module securely.Some weatherhoods may ship disassembled. Detailedassembly instructions ship with the weatherhood.If an optional evaporative cooling module is included,reference Installation, Optional Component Mounting,Evaporative Cooling Module section in this Installation,Operation and Maintenance Manual for moreinformation.The installer is responsible for ensuring that the unitfastening methods are sufficient to account for theweight and size of these additional modules.9. Seal Seam(s)Using an appropriate sealant, seal the seam(s) betweeneach shipped loose module and weatherhood.Combination Curb (continued)