ZN110HL Installation GuidePage 712" (30.5 cm)12Retrofit InstallationParts Bag holdsKnockout Plateand six (6)screwsExisting ductwork andwiring left in place11" (27.9 cm)parallel with joistsWARNINGBefore removing existing fan, switch power off at service panel and lock the service disconnectingmeans to prevent power from being switched on accidentally. When the service disconnecting meanscannot be locked, securely fasten a prominent warning device, such as a tag, to the service panel.Examine the existing wiring to make sure it is not damaged. If any damage is found,DO NOT CONTINUE INSTALLATION of this product. Contact a qualified person(s) for repair.RemoveInstructionSheetRemove CFL Bulbsfrom protective packaging Punch out Mask frompackaging. See Step 12.1 Remove Packaging2 Switch Off Power4 Examine Wiring3 Enlarge Ceiling Opening and Remove Existing Fan• Ruler• Pencil• Drywall saw• Claw hammer or pry bar• Utility knifeMaterials needed• Tape to seal duct connections• Existing rigid duct will require theaddition of a short length of flexible duct• Electrical wiring and supplies perlocal code requirements• 4W (max.) C7-type night light bulbTools needed• Power screwdriver with a Phillips bit• Phillips screwdriver• Flathead screwdriver• Pliers• Wire insulation stripper• Wire cutter