Rate of Exhaust Flow Calculations

NOTE: Any listed and labeled factory-built commercial exhaust hood tested in accordance with UL Standard 710 by a nationally recognized testing laboratory, should be installed according to the terms of its listing and the manufacturer's installation instructions.

Based on the 1996 International Mechanical Code.

The Rate of air flow required for a vent hood is calculated using the following definitions (Fig. 6):

Q= Rate of Air Flow in Cubic Feet Per Minute or [ CFM ] Required for the Hood.

A = Area of Hood Opening = (L x W) in Feet2

D= Clearance Height = Distance in Feet from lower lip of hood to top of dishwasher chamber.

➤				➤
➤				WIDTH
CLEARANCE	➤	LENGTH	➤	WIDTH
			➤
			➤
HEIGHT
➤

P = Perimeter of Hood that is Open. This
depends on the hood design, as follows:		Fig. 6
depends on the hood design, as follows:

Perimeter Calculation Formula

Hood Design	Corner	Wall	Island

Number of Open Sides	2 Sides Open	3 Sides Open	4 Sides Open

P =	L + W	L + W + W	L + L + W + W

Dimensions	Feet	Feet	Feet

If there are four open sides (Island Design), the calculation of the Rate is as follows:

Q = 75 x A

If there are three or fewer open sides, the calculation of the Rate is as follows:

Q = 50 x A

As an alternate method, the Rate can be calculated as follows:

Q = 50 x P x D
Example:
L = 3	W = 3	D = 2
			Rate Calculations

	Hood Design		Corner	Wall	Island

	Number of Open Sides		2 Sides Open	3 Sides Open	4 Sides Open

	Q = 75 x A				675 CFM
	Q = 50 x A		450 CFM	450 CFM
	Q = 50 x P x D		600 CFM	900 CFM	1200 CFM

– 10 –

ML-110974, AM14TC, AM14T, AM14F, ML-110973 specifications

Hobart ML-110975, ML-110973, AM14F, AM14T, and AM14TC are a series of advanced models designed for commercial food preparation, offering efficiency and longevity in professional kitchens. Each model is tailored to meet diverse culinary needs, making them a valuable addition to any foodservice operation.

Starting with the Hobart ML-110975 and ML-110973, these models are known for their robust build and high performance. The ML-110975 features a powerful motor and a durable construction, enabling it to handle heavy mixing tasks seamlessly. This model is equipped with a 12-quart bowl, making it suitable for a variety of batch sizes. On the other hand, the ML-110973 offers a slightly smaller 7-quart capacity, making it ideal for establishments with lower volume requirements. Both models utilize a unique planetary mixing action that ensures thorough mixing of ingredients, thus enhancing the quality of the final product.

The AM14F and AM14T models take the capabilities of the Hobart lineup even further. The AM14F features a food processor attachment that expands its functionality beyond just mixing, allowing for tasks like chopping and grating, making it an essential tool for chefs looking to maximize efficiency. The AM14T includes additional temperature control features, making it particularly useful in recipes that require precise temperature management for ingredients, such as chocolate or delicate sauces.

Finally, the AM14TC integrates innovative technology into its design. This model comes with a time and temperature control display that provides added precision during the preparation process. The touchscreen interface simplifies operation, allowing chefs to easily program settings based on specific recipes. This not only enhances the consistency of food preparation but also minimizes the potential for human error.

Across this series, all models utilize Hobart's commitment to quality and innovation, combining solid construction, powerful motors, and user-friendly features. With their ability to accommodate a wide range of culinary tasks, from dough mixing to food processing, Hobart's ML-110975, ML-110973, AM14F, AM14T, and AM14TC are indispensable tools for any professional kitchen aiming to improve productivity and efficiency. Their reliable performance and versatility ensure that they can keep pace with the demands of any high-volume foodservice establishment. With Hobart’s reputation for excellence, these models are a worthwhile investment for chefs and foodservice operators alike.

Hobart AM14TC, ML-110975, ML-110973, AM14F, ML-110974 manual Rate of Exhaust Flow Calculations

Models: ML-110974 AM14TC AM14T AM14F ML-110973 ML-110975

RATE OF EXHAUST FLOW CALCULATIONS

ML-110974, AM14TC, AM14T, AM14F, ML-110973 specifications