Installation Sequence
At this juncture, the hardest part of the project is done. Installing the range hood takes only about 30 minutes. Start by feeding the electrical cable through the round knockout hole in the rear of the hood (step 8). Be sure the hole is fitted with a cable clamp. Use wire connectors to join same-color wires (black to black and white to white). Tighten the green or bare wire under the grounding screw. Lift the hood into place and press it tightly against the underside of the upper cabinet. Secure it with four screws driven up from the inside (step 9). Now go outdoors to install the wall cap ($23). Run a continuous bead of caulk around the flange of the wall cap, then press it into the hole (step 10). Check to make sure the wall duct on the cap slides onto the damper/duct connector that's attached to the rear of the range hood. If the wall cap is too long, trim it with tin snips. If it's too short, pick up a 3 1/4 x 10-in. section of aluminum duct at a home center or lumberyard (a 24-in. piece costs $8). Cut a piece of duct to fit between the wall cap and damper and attach it with professional (not cloth-backed) duct tape. Finish the installation of the wall cap by screwing it to the house. Turn the electricity back on and test the ventilating fan and lights. Go outside to check that the wall cap damper flips open when the fan is on and closes tightly when it's off. Of course to truly test your new range hood, go fry up a batch of fish— you can be confident that the kitchen won't smell like Captain Stinky's House of Haddock.

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