Thermador PH48HS Ventilation Guide - Page 5

SELECTING the right hood CHOOSING THE CORRECT SIZE and placement 1. Distance from cooking surface Proper mounting height is very important. If a hood is mounted too low, it may be difficult to cook and be unsafe. If a hood is mounted too high, performance may be compromised. For optimal performance, the distance from the cooking surface to the bottom of the hood should be a minimum of 30", unless otherwise noted. Please refer to the installation manual for each hood and cooktop/range model for proper hood mounting heights. 30" minimum 2. Hood width The hood width should be no less than the width of the cooking surface. Where space is not restricted, a wider hood can be used to increase your capture area. Island installations require a greater capture area; therefore the hoods used should overlap your cooking surface up to 3" on either side of the cooktop. Exception: Downdraft ventilation units should be the same width as the cooking surfaces they are ventilating. 36" DOWNDRAFT 36" GAS COOKTOP 3. Available ceiling height The standard ceiling height can vary from region to region and in homes built in different eras. Ceiling heights, even in the same room, can sometimes vary by as much as several inches. Kitchen ceiling heights can vary between 7'6" (or 90") to over 10' (or 120"). Before selecting your hood, check your available installation space and any extra space that may remain after proper installation of your hood and cooktop or range. This extra space can be filled by integrating with your kitchen cabinetry or by using Thermador's Stainless Steel Duct Cover or Chimney Extension Accessories. The space can also be adjusted by raising or lowering your hood within the recommended range (typically 30" to 36" above the cooking surface). Example: The height of your countertop is 36" and you want to add 30" (the minimum distance) between your rangetop to the bottom of the hood. The height of your Thermador Hood is 11," so 77" minimum is required for proper hood installation (from floor to top of hood). If your ceiling is 7'6", subtract the space needed from the space available (90"- 77"=13"). In this case, you have 13" of extra space. 77" (floor to top of hood) minimum for proper hood installation Cover or cabinetry 11" THERMADOR hood height 30" minimum required distance from rangetop to bottom of hood 36" countertop height *Duct covers and chimney extensions are available as an accessory when the hood is mounted below the height of the ceiling. CHOOSING THE CORRECT BLOWER A variety of interior and exterior blower options are available for Thermador's Professional and Masterpiece® Series Hoods and Downdraft Ventilation Units. If the unit you have selected does not have a blower included, choose from one of the following options, which can be purchased separately. See page 40. Blower selection will vary based on the volume of air that needs to be moved and the length and location of the duct run. For long duct runs with multiple turns and bends, consider using a more powerful blower. 1. Remote Blowers (VTR Series) Depending on your preference and ducting situation, these blowers can be mounted on the roof or exterior wall of your home. An exterior installation may be more appealing to reduce noise in the kitchen. 2. Inline Blowers (VTI series) To minimize noise in the kitchen, these blowers are mounted along the duct line anywhere between the kitchen and the exterior wall. If you have easy access to your duct line (in an attic, for example), this maybe an appealing option. 3. Integral Blowers (VTN series) These blowers are purchased separately and integrated into the hood or onto the downdraft unit at the time of installation. This option allows you to select your ideal hood with the exact power you require. SPECIAL NOTE Always allow access to the blower for serviceability, should it be needed. 1. 2. 3. 6 7