Thermador PH48HS Ventilation Guide - Page 30

FREQUENTLY asked questions WHAT ARE THE PRIMARY CONSIDERATIONS IN CHOOSING A VENTILATION SYSTEM? While every kitchen offers its unique set of constraints, the following is a list of basic questions one must ask before selecting a ventilation system: 1. Type of cooking surface (see page 8 for details) 2. BTU of heating surface (see page 8 for details) 3. Air volume or CFMs (see page 9 for details) 4. Duct run (see page 9 for details) CAN I USE A DOWNDRAFT WITH A SLIDE-IN RANGE? Thermador Downdrafts cannot be used in combination with ranges or built-in ovens. The units must only be installed with drop-in cooking equipment. CAN I RECIRCULATE A DOWNDRAFT IN MY ISLAND? Yes, Thermador was the first to introduce a recirculation module for downdrafts. The module comes complete with charcoal filters and socket grids to vent the toe-kick socket area. The downdraft recirculation module easily attaches to the integrated blower inside the cabinet (under the cooktop). This module works in island or wall applications with toe-kicks with heights of 4 inches or taller. CAN I INSTALL AN EXTERNAL VENT FAN OR INLINE FAN TO BOOST THE PERFORMANCE OF MY HOOD VENTILATION EQUIPMENT? Do not install inline or external fans to boost a hood that has its own power unit. In general, attempting that type of "boost" will not be effective. Also, most cooking ventilation products are designed with fan switches matched to the original motor amp ratings and would not support the increased amp draw from additional motor installations. This type of tampering voids the original manufacturer's warranty. HOW CAN I GET ODORS OUT MORE QUICKLY? Similar to pre-heating your oven, switch on the hood a few minutes before you start cooking. This starts to circulate air in the kitchen, which will help remove the odors. Also, many Thermador Hoods feature a delayed shutoff function. The hood will tackle lingering odors and automatically turn off after 10 minutes. 42 HOW OFTEN SHOULD I CLEAN MY FILTERS? Thermador's anodized aluminum mesh grease filters should be washed approximately every month depending on the amount of usage. Wash more often if your cooking style generates greater grease like frying foods or wok cooking. Use hot, soapy water to clean filters. Thermador Filters are also dishwasher-safe. Baffle filters, which are used in Thermador's Wall Hoods, are designed to operate longer in high grease conditions without loss of performance. Generally, these need to be cleaned whenever the surfaces become unsightly. WHAT TYPE OF DUCT IS BEST FOR VENTING A HOOD OR DOWNDRAFT? Hoods must be vented using metal duct. Given a choice between flexible metal duct and smooth metal duct, choose smooth duct. The ridges found in flexible metal duct create turbulence and will diminish airflow. The larger the ducting, the less noise there will be and the better the rate of extraction. HOW FAR CAN I RUN MY DUCTWORK TO EXHAUST MY HOOD? For maximum performance keep the duct straight and short. Use the shortest route with the fewest turns possible. 45° turns are better than 90° turns. Be sure to use an external roof or wall cap. When 10" round ducting is being used, Thermador recommends not exceeding 150 feet of duct. If in doubt, consult a qualified designer/ installer knowledgeable in ventilation. I KEEP HEARING ABOUT "MAKEUP AIR". WHAT IS THIS AND HOW DOES IT APPLY TO MY HOOD? When a ventilation fan operates, it draws air from inside the house to the outside, creating a slight vacuum within the house. This creates negative pressure, meaning the pressure inside the house is less than the pressure outside. If the negative pressure is strong enough, it can cause the furnace and other fuel-burning appliances to backdraft dangerous gases such as carbon monoxide into the home. All exhaust fans need an adequate supply of fresh air from the outside to operate safely. The air needed for this purpose is called "makeup air". Examine the fresh air/building codes that exist where you live. Check with a local heating and ventilation expert to determine if your heating or air conditioning system makes allowances for additional "makeup air". "Makeup" air can be introduced by simply opening a window or door. WARRANTY V E N T I L AT I O N PROFESSIONAL RANGES PROFESSIONAL RANGETOPS INDUCTION COOKTOPS GAS COOKTOPS ELECTRIC COOKTOPS Full warranty parts and labor (1 year) Full warranty parts and labor (1 year) Full warranty parts and labor (1 year) Full warranty parts and labor (1 year) Full warranty parts and labor (1 year) Full warranty parts and labor (1 year) Full warranty and limited warranty from date of installation. For complete warranty details, refer to your Care & Use manual, or ask your dealer. Specifications are for planning purposes only. Refer to installation instructions and consult your countertop supplier prior to making counter opening. Consult with a heating and ventilation engineer for your specific ventilation requirements. For the most detailed information, refer to installation instructions accompanying product or write Thermador indicating the model number. Specifications are correct at time of printing. Thermador reserves the right to change product specifications or design without notice. Some models are certified for use in Canada. Thermador is not responsible for products that are transported from the U.S. for use in Canada. Installation Notes: 1) Follow all National Electrical Code regulations. In addition, be aware of local codes and ordinances for makeup air requirements (if any) when installing your service. 2) Refer to the installation instructions shipped with each Thermador product for detailed specifications. ©2010 BSH Home Appliances Corporation. Litho date: 08/2010