Whirlpool WVI75UC6DS Use & Care Guide - Page 5

Installation Dimensions B C D A A. Countertop height B. Hood height from ceiling to bottom of the range hood filter surface: D-A-C=B C. Hood height: 24" (61.0 cm) min. from electric cooking surface, 27" (68.6 cm) min. from gas cooking surface, suggested 36" (91.4 cm) max. D. Ceiling height IMPORTANT: Minimum distance "C": 24" (61.0 cm) from electric cooking surface, 27" (68.6 cm) from gas cooking surface Suggested maximum distance "C": 36" (91.4 cm) The chimneys can be adjusted for different ceiling heights. See the following chart. Vented Installations Min. ceiling height Max. ceiling height Electric cooking surface 7' 8" (2.34 m) 9' 10" (3.0 m) Gas cooking surface 7'11" (2.41 m) 9' 10" (3.0 m) Non-vented (recirculating) Installations Min. ceiling height Max. ceiling height Electric cooking surface 7' 8" (2.34 m) 10' 3" (3.12 m) Gas cooking surface 7'11" (2.41 m) 10' 3" (3.12 m) *NOTE: The range hood chimneys are adjustable and designed to meet varying ceiling or soffit heights depending on the distance "C" between the bottom of the range hood and the cooking surface. For higher ceilings, a Stainless Steel Chimney Extension Kit Part Number W10688278 is available from your dealer or an authorized parts distributor. The chimney extension replaces the chimney shipped with the range hood. Venting Requirements ■ Vent system must terminate to the outside, except for nonvented (recirculating) installations. ■ Do not terminate the vent system in an attic or other enclosed area. ■ Do not use 4" (10.2 cm) laundry-type wall caps. ■ Use metal vent only. Rigid metal vent is recommended. Do not use plastic or metal foil vent. ■ The vent system must have a damper. If the roof or wall cap has a damper, do not use the damper supplied with the range hood. For the most efficient and quiet operation: ■ Use a straight run or as few elbows as possible. ■ Use no more than three 90° elbows. ■ Make sure there is a minimum of 24" (61.0 cm) of straight vent between the elbows if more than 1 elbow is used. ■ Do not install 2 elbows together. ■ Use vent clamps to seal all joints in the vent system. ■ Use caulking to seal exterior wall or roof opening around the cap. ■ The size of the vent should be uniform. Cold Weather Installations An additional back draft damper should be installed to minimize backward cold air flow and a thermal break should be installed to minimize conduction of outside temperatures as part of the vent system. The damper should be on the cold air side of the thermal break. The break should be as close as possible to where the vent system enters the heated portion of the house. Makeup Air Local building codes may require the use of makeup air systems when using ventilation systems greater than specified CFM of air movement. The specified CFM varies from locale to locale. Consult your HVAC professional for specific requirements in your area. Venting Methods This island hood is factory set for venting through the roof. A 6" (15.2 cm) round vent system is needed for installation (not included). The hood exhaust opening is 6" (15.2 cm) round. NOTE: Flexible vent is not recommended. Flexible vent creates back pressure and air turbulence that greatly reduce performance. Vent system can terminate either through the roof or wall. To vent through a wall, a 90° elbow is needed. For Non-Vented (recirculating) Installations If it is not possible to vent cooking fumes and vapors to the outside, the hood can be used in the non-vented (recirculating) version, fitting a charcoal filter and the deflector. Fumes and vapors are recycled through the top of the grille. To order, see the "Assistance or Service" section. 5