KitchenAid KHHS179LBT Installation Instructions - Page 2

MICROWAVE HOOD COMBINATION SAFETY Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word "DANGER" or "WARNING." These words mean: DANGER You can be killed or seriously injured if you don't immediately follow instructions. WARNING You can be killed or seriously injured if you don't follow instructions. All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can happen if the instructions are not followed. VENTING DESIGN SPECIFICATIONS This section is intended for architectural designer and builder/contractor reference only. NOTES: ■ Vent materials needed for installation are not provided with microwave hood. ■ We do not recommend using a flexible metal vent. ■ To avoid possible product damage, be sure to vent air outside, unless using ventless (recirculating) installation. Do not vent exhaust air into concealed spaces, such as spaces within walls or ceilings, attics, crawl spaces or garages. For optimal venting installation, we recommend: ■ using roof or wall caps that have back draft dampers ■ using a rigid metal vent ■ using the most direct route by minimizing the length of the vent and number of elbows to provide efficient performance ■ using uniformly sized vents ■ using duct tape to seal all joints in the vent system ■ using caulking compound to seal exterior wall or roof opening around cap ■ not installing 2 elbows together, for optimal hood performance If venting through the wall, be sure that there is proper clearance within the wall for the damper to open fully. If venting through the roof, and rectangular to round transition is used, be sure there is at least 3" (7.6 cm) of clearance between the top of the microwave oven and the transition piece. See "Rectangular to Round Transition" illustration. Roof venting Wall venting Roof cap Wall cap 2