14GDED-IOM-215-A9 ASSEMBLY AND INSTALLATION9.1 IntroductionSafe and efficient operation of the OptiFlo RC depends on proper installation.AAF recommends that the ductwork going into the collector be as straight as possible,with at least 5 diameters of straight run recommended.Authorities with jurisdiction should be consulted before installing the OptiFlo RC toensure local installation laws, codes, regulations and procedures are followed.A qualified installation and service agent must complete installation and service ofthe dust collector and equipment.Ensure all covers from shipping and loose materials are removed from the collectorbefore installation. Failure to do so can result in failure of the dust collector.Ensure the hardware, on the dust collector assemblies, is properly installed and tightbefore installation.9.2 Assembling and installing the structure9.2.1 Modular assemblyOptiFlo RC units with multiple modules normally have their housings factory pre-assembled up to a minimum of 4 modules, with legs and hoppers sent for site assembly. Ifmore than 4 modules are required or if there are site access problems that preclude deliveryof very large assemblies, it may be necessary to join together on site the housing modules.In this case the modules to be joined will not have side panels. See also 9.2.4.9.2.2 Flanged jointsFlanged joints exist where housing modules must be bolted together and wherehoppers are bolted to the lower faces of the housing. In most cases, AAF will providesufficient tubes of sealant which must be applied to one of the opposing faces just prior tothe faces being brought together. When applying sealant be careful to circle each bolt holewith the sealant. See also 9.2.49.2.3 Products shipped as a single assembly.Some of the smaller sized units may be shipped each as a single assembly on a flat-bed truck. Careful lifting, using the supplied lifting lugs, is required to turn the unit to thevertical position prior to lowering the unit onto the legs and the pre-prepared foundation.