Central AC: design stage

The design stage of central AC is the basic and important pillar for the installation of a system central AC well to ensure: –

• Optimal air distribution
• Good cooling for every vacuum
• Reduce any noise caused by the central air conditioning unit or the amount of air passing through the
• Reduce the financial costs of the project with a good design that combines the best route and distribution of the DUCT at the lowest possible cost.

1 - Calculation of central AC convection

The calculation and study of the central AC convection varies according to the different applications of each project, several factors must be taken into account, mainly related to the method of calculating the cooling load of the place in terms of

• Orientation of the building and its direct exposure to the sun
• The size of the glass facades in the place, if any
• The type and nature of the project is a commercial project such as exhibitions, a commercial mall, warehouses, or mosques, each of them has a different account and distribution
• The ratio of " Fresh Air” and humidity required in some projects
• The height and type of ceilings, such as Shinko ceilings, concrete, skylight and others and large heights such as hvac of mosques

2. DUCT central AC design

DUCT “air ducts " according to the well-studied cooling loads of the project, the type of the selected central ac brand and the volume of cooled air required distribution.

The sheet and the design of ductair ducts and its accessories are formed based on the engineering and technical needs of the project and under the supervision of experienced engineers, according to the sizes indicated by the design schemes, and by the standards and thicknesses indicated by the applicable international codes (SMACNA) which is the World Association of sheet metal and air conditioning contractors،

Air balancing is an essential step in ensuring that HVAC and ventilation systems work with optimal efficiency, where a test is made for the balance and calibration of air flow to ensure that air is evenly distributed and pressure is controlled throughout the system.

ductair duct network “DUCT” consists of several components of different material and role for each component, to complete the air flow process in specific ways within the air distribution network effectively.

1. (Canvas) it is a connection with metal limbs mediated by a kind of skin that helps to absorb the vibrations generated by the machine and not transfer them to the”DACT"
2. (Flexible) the “dactyl” is connected to the air distribution boxes and is insulated with glass wool and is characterized by its flexibility, easy to form and pass through narrow places.
3. Plenum box it connects flexible connections to the air vents and is also insulated from the inside.
4. dumber dispensers: are used to control the speed of air flow, quantity and distribution effectively and can be controlled manually or automatically and have several types.
5. grills air outlet holes come in several types “side, longitudinal, square, round, jet”
6. (Sound Attenduator) it works to reduce and reduce the sound produced by air pushing fans and the drop in pressure resulting from its installation should be added to the calculations of the drop in static pressure” ” for the air fan used.

3. Isolation of DUCT central AC

Ductair ducts are insulated with” Fiberglass “Glass Wool from the outside and inside to prevent heat loss and reduce noise transmission،

From the inside, it is covered with a layer to protect it from moisture and prevent the spread of fiber atoms in the air, and maintain the temperature rushing from the fans through the air duct and flexible connections, then boxes and up to the air outlets “greels”

4 - Design of central AC grilles

There are many types and forms air conditioning grilles central "air outlets", including (Circular, Square, lateral, longitudinal, and others)

Determines the design of air outlets and determine their places, and choose the appropriate shape and dimensions for each air outlet according to the amount of air required in each space and based on the aesthetic shape complementing the decor and appropriate for the place

At UNITED HVAC, we work on presenting and clarifying air conditioning systems and providing advice in an abstract way without bias to a brand or system, so that our customers remain free to choose air conditioning systems and brands according to their actual needs

Our goal is to allow our clients to focus on managing their tasks, supported by our services provided to them.

Don't hesitate to request a quote, or any inquiry about different HVAC systems and whichever is most suitable for your project, our engineers are waiting for your request, and help you. Just click on the “Contact Us " button, or talk to our engineer via WhatsApp