Whirlpool UXT3030AYB Installation Guide - Page 6

Calculating Vent System Length To calculate the length of the system you need, add the equivalent feet (meters) for each vent piece used in the system. 3¹⁄₄" x 10" (8.3 cm x 25.4 cm) Vent System Vent Piece 3¹⁄₄" x 10" (8.3 cm x 25.4 cm) 5.0 ft 90° elbow (1.5 m) 3¹⁄₄" x 10" (8.3 cm x 25.4 cm) 12.0 ft flat elbow (3.7 m) 3¹⁄₄" x 10" (8.3 cm x 25.4 cm) 0.0 ft wall cap (0.0 m) Example vent system 3¹⁄₄" x 10" (8.3 x 25.4 cm) elbow 6 ft (1.8 m) 2 ft (0.6 m) Wall cap Maximum Recommended Length = 35 ft (10.7 m) 1 - 90° elbow 8 ft (2.4 m) straight 1 - wall cap Length of 3¹⁄₄" x 10" (8.3 cm x 25.4 cm) system = 5.0 ft (1.5 m) = 8.0 ft (2.4 m) = 0.0 ft (0.0 m) = 13.0 ft (3.9 m) Electrical Requirements Observe all governing codes and ordinances. Ensure that the electrical installation is adequate and in conformance with National Electrical Code, ANSI/NFPA 70 (latest edition), or CSA Standards C22.1-94, Canadian Electrical Code, Part 1 and C22.2 No. 0-M91 (latest edition) and all local codes and ordinances. If codes permit and a separate ground wire is used, it is recommended that a qualified electrician determine that the ground path is adequate. A copy of the above code standards can be obtained from: National Fire Protection Association One Batterymarch Park Quincy, MA 02269 CSA International 8501 East Pleasant Valley Road Cleveland, OH 44131-5575 ■ A 120 volt, 60 Hz., AC only, 15-amp, fused electrical circuit is required. ■ If the house has aluminum wiring, follow the procedure below: 1. Connect a section of solid copper wire to the pigtail leads. 2. Connect the aluminum wiring to the added section of copper wire using special connectors and/or tools designed and UL listed for joining copper to aluminum. Follow the electrical connector manufacturer's recommended procedure. Aluminum/copper connection must conform with local codes and industry accepted wiring practices. ■ Wire sizes and connections must conform with the rating of the appliance as specified on the model/serial rating plate. The model/serial plate is located behind the filter on the rear wall of the range hood. ■ Wire sizes must conform to the requirements of the National Electrical Code, ANSI/NFPA 70 (latest edition), or CSA Standards C22. 1-94, Canadian Electrical Code, Part 1 and C22.2 No. 0-M91 (latest edition) and all local codes and ordinances. 6