Preparing for Installation

Plan the Duct Work Installation

WARNING

•To reduce the risk of fire and to properly exhaust air, be sure to duct air outside the house or building. Do not vent exhaust air into spaces within walls or ceilings or into attics, crawl spaces or garages.

•Tape all duct joints securely to prevent combustion by-products, smoke or odors from entering the home. Doing so will also improve system efficiency.

•Do not exhaust more than one vent into a single duct.

•Use only duct work constructed of materials deemed acceptable by state, municipal and local codes.

•Range hoods may interrupt the proper flow of smoke and combustion gases from furnaces, gas water heaters and fireplaces. To avoid drawing lethal gases into the home, follow the manufactures recommendation for these devices and consult NFPA and ASHRAE recommendations.

•DO NOT install an additional in-line or external blower to increase the length of the duct run. Even small differences between blower air flow rates can greatly reduce the air draw by the hood.

•All duct work materials (including screws and duct tape) must be purchased separately by the customer. When planning new duct work, always look for the shortest, most direct route to the outside.

•The hood exhaust connects to an 8-inch round duct. You can increase the duct size over the duct run if desired. To prevent a back draft, never decrease the duct size over the run.

•Do not rely on duct tape alone to seal duct joints. Fasten all connections with sheet metal screws and tape all joints with duct tape. Use sheet metal screws as require to support the duct weight.

•To prevent back-drafts, a damper at the duct outlet may also be required.

•Make sure duct work does not interfere with floor joists or wall studs.

Calculating the Maximum Duct Run Length

The maximum straight duct length for the hood is 100 feet. For each elbow and transition added to the duct work, a certain number of feet must be subtracted from the maximum straight length to compensate for wind resistance. To determine the length the duct work cannot exceed, subtract all of the equivalent lengths of the elbows and transitions listed below from 100 feet.

Duct Work Equivalent Lengths

DUCT PIECE

SUBTRACT

90° elbow (8” Dia.)

7 feet

45° elbow (8” Dia.)

3 feet

3 1/4” x 10” to 8” round

4 foot

Wall cap with damper

30 feet

Roof cap

30 feet

Duct Work Design Tips

•Wherever possible, reduce the number of transitions and turns to as few sharp angles as possible. Two staggered 45° angles are better than one 90°.

•Keep turns as far away from the hood exhaust as possible, with as much space between each bend as possible.

•For best performance, use round duct instead of rectangular, especially when elbows are required.

•If multiple elbows are used, try to keep a minimum of 24” (61 cm) of straight duct between them.

•Avoid “S” or “back to back” configurations of adjacent elbows.

•In regions where the weather gets extremely cold, thermal breaks, such as a short section of non-metallic duct, should be used to avoid indoor heat loss. The break should be located as close to the pass through point to the outside as possible.

•Do not use flexible metal duct.

•Do not use duct work that is smaller in cross-sectional area than the recommended size duct (8” round).

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Dacor DHI542, DHI602, DHI482, DHI421, DHI361 Plan the Duct Work Installation, Calculating the Maximum Duct Run Length
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DHI361, DHI421, DHI542, DHI482, DHI602 specifications

Dacor, a reputable name in the luxury kitchen appliance industry, has developed an impressive lineup of range hoods, specifically the DHI602, DHI482, DHI542, DHI421, and DHI361 models. Each model combines innovative technology, exceptional performance, and sophisticated design to meet the needs of modern culinary enthusiasts.

The DHI602 is a powerful 600 CFM range hood that features a sleek, integrated design, making it the perfect addition to any contemporary kitchen. Its dual blower system ensures optimal airflow, effectively capturing smoke and odors. Users benefit from multiple speed settings, allowing for tailored ventilation based on cooking intensity. Additionally, the DHI602 includes advanced LED lighting, providing ample illumination for culinary tasks while enhancing the kitchen's aesthetics.

Next in line is the DHI482, which boasts a robust 480 CFM performance. This model is designed with a seamless wall-mounted style that offers functionality without compromising on visual appeal. It incorporates a baffle filter system, which is easier to clean and ensures durable performance. The DHI482's quiet operation ensures an enjoyable cooking environment, even during intensive culinary projects.

The DHI542 stands out with its 540 CFM capacity, integrating a range of user-friendly features. It features a digital display and intuitive controls for easy operation. An auto timer function allows users to pre-set the duration for the hood operation, which is particularly handy when multitasking in the kitchen. The DHI542 also includes a charcoal filter for recirculation installation, providing versatility for homes lacking external venting options.

The DHI421 is characterized by its compact design and effective 420 CFM operation. This model is perfect for smaller kitchens where space is at a premium but does not compromise on performance and efficiency. The DHI421 uses a sleek, stainless-steel finish to seamlessly blend with various kitchen styles. Its dishwasher-safe filters not only offer convenience and ease of maintenance but also promote better indoor air quality.

Finally, the DHI361 is designed for those who prioritize efficiency in a smaller footprint. With a 360 CFM capacity, this model delivers essential ventilation while remaining energy efficient. The DHI361 is designed for straightforward installation and includes LED lights that enhance the cooking space. Its sleek design and functionality make it a favorite among those looking to elevate their kitchen aesthetics.

In summary, Dacor's range of range hoods—DHI602, DHI482, DHI542, DHI421, and DHI361—exhibits exceptional performance, cutting-edge technology, and elegant design. These models cater to a variety of kitchen sizes and styles, ensuring that every cooking experience is enhanced by superior ventilation and atmosphere.
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