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HVAC Design

HVAC design is a complicated and lengthy process. Whether your home is a remodel from the early 1900's or a modern day passive home you need to start with a good system design.

Interview Process: The first step in designing an HVAC system is to interview the customer to see how they are going to live in their home. Obviously there is certain things that are universal to all people. There are other things that specific to that home owners needs and wants. Examples of this, some customers want a commercial grade kitchen with large volume kitchen exhaust. If this is the case, we have to design for this to include automatic makeup air that balances the exhaust. There are many other specifics that your system designer will discuss. It is recommended that before your meeting you think about and write down anything in particular you would like to see incorporated. 

Manual J Load Calculation: The Manual J heat load calculation is at the heart of your HVAC design. To accurately size  your system we take into account factors like the size of the space, insulation, windows, and local climate conditions, direction the house faces and the amount of air infiltration. We will often times use data from Building Envelope (Blower Door) testing to more accurately size your system. By obtaining this report, customers can ensure that their HVAC system is appropriately sized for their specific needs. Undersized systems can lead to discomfort and overworked equipment, while oversized systems can be less efficient and costly to operate as well as poorly control humidity. In this step will discuss with the customer and design fresh air ventilation strategies as this affects the overall load on the home. 

Manual S Equipment Selection: Once the heat load on the home is calculated we can then bring options that will manage both Sensible (Temperature Load) and Latent (Moisture Load) of your home. As a Bryant and Mitsubishi dealer have have many options available to meet your needs. We will discuss which options would work in your home and advantages of one option over another. 

Manual T Boots and Register Selection: One of the most overlooked pieces of HVAC design is selecting the correct boots and registers. We will often see systems that have incorrect size boots and the wrong type of registers that are not designed to cover the space that is being conditioned. On multiple occasions we have been able to improve room conditions by merely changing out a register without have to resort to a more expensive solution. When the home is designed with this in mind from the beginning we can avoid these problems from the start. 

Manual D Duct Design: The last step and one of the most important is designing your duct work to deliver the proper amount of cooling and heating to the space. The rules of thumbs some contractors use simply isn't enough to achieve consistent results. There is a lot of math involved in ensuring we can deliver the proper amount of air flow to an area yielding a room that you can enjoy being in. 

All the design in the world will not compensate for a poor install. This is why it is important to select a contractor Like Performance Air Conditioning of Texas that will give you a great design and install to ensure your home is comfortable and healthy along with efficient to operate. 

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