NuTone CV-352 Installation Manual

Contents

NuTone CV-352 Installation Manual Manual pdf 8 page image

8INSTALLATION IN EXISTING CONSTRUCTIONLAYOUT AND PLANNINGThe general layout and planning and the component locationsare the same for existing construction.See pages 2 and 3.LOCATING ACCESS KEYSUnless your home is a ranch-style house where a single trunkline can run directly through the attic or basement, you shouldfirst investigate your house to find the “key” to running yourtubing from level to level. What you're looking for is an accessiblearea that is free from obstructions and will accommodate the2" tubing.Let's say, for example, you have a two-story house and youwant to locate the power unit in the basement. The first floorinlets can easily be connected to a trunk line which runs alongthe basement ceiling. However, you can't find interior walls onboth the first and second floors which line up and are free fromobstacles. How do you get from the basement to the attic?Some of the “keys” you might find in your home are illustratedhere.Stacked Closets. Many homes will have an upstairs closetlocated directly above a downstairs closet. It is easy to run thetubing from one floor level to another inside these stackedclosets. In these installations the tubing is often left exposedinside the closets. See FiBuilt-In Appliances. In a home where the kitchen featuresbuilt-in appliances, you'll often find a hollow space behind theseappliances. If this space lines up with an obstruction-free interiorwall above or a closet, this might be a “key” to your installation.In a ranch-style home, this “key” would provide access to runtubing from a basement located power unit to an attic trunk line.You may also want to consider running exposed tubing throughcabinets or cupboards. See Figure 22.Laundry Chute. Pictured here is tubing run from the basementto the attic through a laundry chute. A dumb-waiter would servethe same purpose. See Figure 22.Cold-Air Return. A cold-air return often provides a straight runfrom basement to other levels of the house. The ductwork iseasily cut for access. Seal around the tube when completing theinstallation. See Figure 23.FIGURE 21FIGURE 22FIGURE 23WALL INLET INSTALLATIONUse the following procedures for installation in existingconstruction.1. See Figure 24. A small “Pilot” or “Locating” hole can bedrilled behind baseboard toe strip to determine properlocation of 21⁄2" diameter tubing hole in sole plate.2. Measure the total thickness of the wall, including baseboard.One half of this wall thickness measured from the Pilot Hole(dimension “X”) will determine the proper location of the 21/2"tubing hole in the sole plate.3. See Figure 24. Once desired inlet locations have beendetermined, cut a 21⁄2" hole in soleplate directly in line withproposed inlet location. Check through tubing hole to be sureno obstruction exists.BASEBOARDTOE STRIPPILOT HOLE“X”SOLE PLATEFIGURE 24