Whirlpool GZ7930XHS Installation Guide - Page 9

16. Turn the control knob on side of vent to check the operation and speed of blower. If blower does not operate: • Check that filter or filters are pressed in as far as they will go. • Check that circuit breaker is not tripped or house fuse blown. • Disconnect power. Check that wire connections have been made correctly. • Reconnect power. 17. Connect vent system to blower. Vent system must end with a wall or roof cap. Use duct tape to seal all joints. 18. Install cooktop according to manufacturer's instructions. Check that rear of cooktop overlaps edge of retractable downdraft vent by 3/8" (9.5 mm). To get the most efficient use from your new retractable downdraft vent, read the Use and Care Information section on page 12. Keep Installation Instructions and Use and Care Information close by for easy reference. Exterior-mounted vent motor KIRD and YKIRD MODELS ONLY NOTE: Exterior-mounted vent motor installations require exterior blower system, Model No. KPEC992M [900 cfm (25.5 m3/m)], available from your dealer or authorized parts supplier. IMPORTANT: Exterior blower Model No. KPEU722M [1200 cfm (34.0 m3/3)] cannot be used with this retractable downdraft vent system. Roof venting Installation requirements Island location 10" (25.4 cm) round vent Maximum length of vent system It is recommended that you use round vent instead of rectangular vent, especially if elbows are required. If rectangular vent is required, it should be transitioned to 10" (25.4 cm) round vent as soon as possible. Determining the length of system you need: To calculate the length of system you need, add the equivalent feet for each duct piece that will be needed. See example for 10" (25.4 cm) round vent system. 10" (25.4 cm) round vent system Built-in cabinet location Built-in cabinet location Vent Length 10" (25.4 cm) round 40 ft. (12.2 m) Vent length is given as a general reference only. For a longer vent run, or smaller vent system, contact a qualified and trained vent installer. Check with local codes for makeup air requirements, if any. For best performance, use no more than three 90° elbows. If more than one elbow is used, make sure that there is a minimum of 24 inches (61 cm) of straight vent between any two elbows. Do not install two elbows together. Maximum length = 40 ft. (12.2 m) 2 - 90 elbows 10 ft. (3 m) straight Length of 10" (25.4 cm) system = 10 ft. (3.05 m) = 10 ft. (3.05 m) = 20 ft. (6.1 m) NOTE: The exterior-mounted vent motor requires a separate wiring cable that should be installed at the same time the vent work is installed. left vent right vent 9