INSTALLATION
The hood can be installed in the following ways: top air outlet, bottom air outlet, rear air outlet. Once the desired configuration has been chosen (see the diagrams below) it will be necessary to provide an opening in the wall where to house the
HOOD INSTALLATION SCHEME
RECESSED HOUSING LOWER BORDER SHALL BE INSTALLED AT THE MINIMUM DISTANCE OF
•Basing on the following scheme prepare the opening H for housing the
•Concerning the ductrun consider the figures in the following scheme bearing in mind that the rear hole P serves only for the rear air
|
7/8 |
P |
10 |
U |
H |
CALCULATE THE DUCTRUN LENGTH
The ductwork length should not exceed 35 equivalent feet for 3 1/4" X 10" duct, or 55 equivalent feet for 9" or 10" round duct. Calculate the length of the ductwork by adding the equivalent feet listed in FIGURE 1 for each piece of duct in the complete system. An example is given in FIGURE 2. For best results, use no more than three 90° elbows. Make sure that there is a minimum of 24" of straight duct between elbows if more than one is used. Do not install two elbows together. Round duct is recommended instead of rectangular duct especially if elbows are needed. For internal blower models, rectangular duct should be transitioned to 9" round as soon as possible.
45° Elbow | 5.0 feet |
90° Elbow | 7.0 feet |
90° Flat Elbow | 12.0 feet |
Wall Cap | 0.0 feet |
FIGURE 1
9 Feet Straight Duct 9.0 feet
2 - 90° Elbows | 14.0 feet | |
Wall Cap |
| 0.0 feet |
Total System | 23.0 feet | |
FIGURE 2 |
| |
8 |
| EN |
