Central Air Ductwork Design

In this video we ll be learning how to size and design a ductwork for efficiency.

Central air ductwork design.

Residential ductwork design starts on the drawing board. Hvac ductwork sizing is critical for proper heating and cooling in every room. Proper ductwork design ensures the level of air flow that your hvac system needs to operate efficiently and provide the comfort you want and expect in your renovated space. 5 common ductwork design mistakes.

Ordinary heating ventilating and air conditioning duct systems read air pressures at 0 4 psi or less often much less. Don t kill your air flow with this flex duct disease. The science of sag flex duct and air flow. Sketch a rough design using a central supply duct from the unit to the opposite end of the house with branches forking to each outlet.

How to design a duct system. The secret to moving air efficiently through your duct system my article on david hill s 2015. Includes a full worked example as well as usin. This is because an additional branch now feeds the three smaller branches allowing some of the air to smoothly break away from the main flow and feed into these smaller branches.

A true central air conditioning system uses ducts to distribute cooled air throughout the house. Adapt the design to the type of unit. Let s look at some of the different types of ducts needed for air conditioning. In a split system the most common design refrigerant circulates between an indoor coil and.

Ducts for central air conditioning can also be used for heating and filtering systems. Duct design 4 calculating friction rate. Flexible ductwork flexible ducts are typically tube shaped made of a wire coil covered with a bendable durable plastic and surrounded by insulation. This kind of ducting is.

Determining the most efficient and effective design for heating and cooling ductwork is not an afterthought to the new construction process lowest price and speed of installation should not be your primary concerns because duct performance impacts energy efficiency operating costs comfort and indoor air quality. One on a concrete. 1 psi equals 27 7 inches of water gauge. Have to get the air back to the furnace.

Crippling air conditioning problems caused by poor air flow. Return air ducting is necessary in almost every room. A common duct pressure of 0 25 inches water column is equal to 0 25 divided by 27 7 in wc psi 0 009 psi. These ductwork tips will help balance your air conditioning and heating system.

The three branches within the main duct now receive equal air flow making a significant improvement to the design.