7Venting MethodsThis canopy hood is factory set for venting through the roof orwall.A 6" (15.2 cm) round vent system is needed for installation (notincluded). The hood exhaust opening is 6" (15.2 cm) round.NOTE: Flexible vent is not recommended. Flexible vent createsback pressure and air turbulence that greatly reduceperformance.Vent system can terminate either through the roof or wall. To ventthrough a wall, a 90° elbow is needed.Rear dischargeA 90° elbow may be installed immediately above the hood.For Non-Vented (recirculating) InstallationsIf it is not possible to vent cooking fumes and vapors to theoutside, the hood can be used in the non-vented (recirculating)version, fitting a charcoal filter and the deflector. Fumes andvapors are recycled through the top grille.Calculating Vent System LengthTo calculate the length of the system you need, add theequivalent feet (meters) for each vent piece used in the system.Maximum equivalent vent length is 35 ft (10.7 m).Example vent systemThe following example falls within the maximum recommendedvent length of 35 ft (10.7 m).Electrical RequirementsObserve all governing codes and ordinances.Ensure that the electrical installation is adequate and inconformance with National Electrical Code, ANSI/NFPA 70 (latestedition), or CSA Standards C22.1-94, Canadian Electrical Code,Part 1 and C22.2 No. 0-M91 (latest edition) and all local codesand ordinances.If codes permit and a separate ground wire is used, it isrecommended that a qualified electrician determine that theground path is adequate.A copy of the above code standards can be obtained from:National Fire Protection Association1 Batterymarch ParkQuincy, MA 02169-7471CSA International8501 East Pleasant Valley RoadCleveland, OH 44131-5575■ A 120 volt, 60 Hz., AC only, 15-amp, fused electrical circuit isrequired.■ If the house has aluminum wiring, follow the procedurebelow:1. Connect a section of solid copper wire to the pigtailleads.2. Connect the aluminum wiring to the added section ofcopper wire using special connectors and/or toolsdesigned and UL listed for joining copper to aluminum.Follow the electrical connector manufacturer's recommendedprocedure. Aluminum/copper connection must conform withlocal codes and industry accepted wiring practices.■ Wire sizes and connections must conform with the rating ofthe appliance as specified on the model/serial rating plate.The model/serial plate is located behind the filter on the rearwall of the range hood.■ Wire sizes must conform to the requirements of the NationalElectrical Code, ANSI/NFPA 70 (latest edition), or CSAStandards C22. 1-94, Canadian Electrical Code, Part 1 andC22.2 No. 0-M91 (latest edition) and all local codes andordinances.Roof Venting Wall Venting Non-vented(recirculating)A. Roof capB. 6" (15.2 cm)round ventA. Wall capB. 6" (15.2 cm)round ventA. DeflectorB. 6" (15.2 cm)round ventVent Piece 6" (15.2 cm) Round45° elbow 2.5 ft(0.8 m)90° elbow 5.0 ft(1.5 m)AAB BBA1 - 90° elbow = 5.0 ft (1.5 m)1 - wall cap = 0.0 ft (0.0 m)8 ft (2.4 m) straight = 8.0 ft (2.4 m)Length of system = 13.0 ft (3.9 m)90 elbow 6 ft (1.8 m)2 ft(0.6 m)Wall cap