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Wednesday, 20 November 2013 20:09

8 Mechanisms Found in Every HVAC Unit

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HVAC systems are not as complicated as you thought. In order for the whole system to supply you with cold air in the summer and warm air in the winter they all must consist of these 8 components. Without the presence of these 8 parts your HVAC system would not be doing its job.

On the other hand if one of these parts were to malfunction is would throw your whole HVAC unit out of equilibrium. In order to better understand how your HVAC unit works and how important these parts are to the overall efficiency of your system it is important to know what it takes for you to be provided with comfort through maintained temperatures.

One HVAC unit is different than the next one, but all HVAC units are equip with these 8 parts so that air conditioning and heating can be provided to you and your family:

1. Furnace – This part of your HVAC unit is a large unit and requires its own space within your home and/or office. Often installed in your attic, basement or closet this part of your HVAC system is responsible for pushing cold and/or hot air into your duct work so that it can be passed into the rooms of your space.

2. Heat Exchanger – Located in the furnace this component of your HVAC system is very important in the heating process. Once your furnace is activated for a change in temperature the heat exchanger is fired up. Air is sucked into the heat exchanger, from either the outside or a separate duct unit, and it is the heat exchangers job to make sure that the cold air is heated and returned to the home and/or office

Wednesday, 20 November 2013 20:06

Duct Work 101: Part 3 | Duct Design Criteria

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In order for your HVAC machine to work properly and efficiently, a proper duct design must be constructed and installed before you and your home can experience heating or cooling.

In order for a duct design to perform properly load estimates must be performed by a certified HVAC technician in order to determine the zone and space of the area so that the duct system can distribute cool and/or warm air to the residential and/or commercial space.

Once this is established the technicians can lay out the components of the duct system and what will work best for the residential and/or commercial space. These components of duct system design consist of:

1. Heat/load estimations

2. Air distribution Principles

3. Locating supply and return diffusers and registers so that adequate air flow and distribution can be provided to each space

When designing a dust system there are several factors that must be taken into consideration. If these factors are not designed properly and efficiently your HVAC machine will not function properly and could also result in high energy bills and discomfort. The art of duct designing includes:

Wednesday, 20 November 2013 20:04

Duct Work 101: Part 2 | Components

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Other than the duct system itself that supplies you with cool or warm air to meet your temperature desires, there are many other components to a duct system. Without the presence of these components heating and/or cooling would not be possible.

Most importantly in order for your HVAC unit to not malfunction all of these parts need to be in equilibrium, by being installed and sized properly.

The components of an HVAC system include:

1. Vibration Isolators – A duct system begins at an air handler and this part of the system circulates air and in doing so it creates a vibration. The isolators allow the air handler to vibrate without transmitting noise to the ducts. The reason why you do not hear your HVAC system is because of these rubber vibration isolators.

2. Take-offs – This component of your HVAC unit is located away from the air handler. Take-offs allow a small portion of air flow, in the main duct, to be diverted into each branch duct (which supply air to other parts of the home)

3. Stacks – Ducts in your home allow air to travel vertically within thin walls, the vertical ducts are also known as stacks. They are rectangular or oval shaped.

Wednesday, 20 November 2013 20:01

Duct Work 101: Part 1 | Materials

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The first step in having an HVAC unit installed in your residential and/or commercial space involves the installation of duct work. The job of duct work is to deliver and remove air, in regards to heating and cooling your home and/or office. In order for the system to work there are 2 types of airflow needed: supply air, return air, and exhaust air. Without these air flows indoor air quality, and comfort, would not be possible.

Before duct work is installed into your location there is strategic planning and detailing in order to make sure that your duct system works properly and efficiently. Once a plan has been implemented, before installation happens you and your professional HVAC contractor will go over certain materials that your duct work can be made up of in order for your home to reach and maintain clean air and comfort.

Some of the materials that duct work can be made out of are:

1. Galvanized Mild Steel – This material is most commonly used across the state, when it comes to fabricating duct work. Metal ducts are typically lined with duct liner or duct wrap. The liner is for insulation purposes to make sure that no air escaped out of the duct system causing your comfort to be put on the line and energy to be wasted.

2. Polyurethane and Phenolic Insulation Panels (pre-insulated air ducts) – These panels are installed in a single fix, are very light weight and are used because of the speedy and easy installation that goes along with them. When customizing a duct system, these panels can be easily fabricated in order to meet certain standards. Another great feature about these panels is that they are sealed with a water-proof coating so that moisture build up does not happen, decreasing your chances of breathing in contaminated air.

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