By: Arthur Cooper
Submitted: 2010-07-26 21:30:28 | Word Count: 664
Air Conditioning Installation in Commercial Buildings
An experienced air conditioning company will advise you on the HVAC air conditioning system to retrofit in your building as well as perform the air conditioner installation. A qualified air conditioning company will be able to accurately determine the air conditioner installation and design considerations specific to your space. The purpose of an HVAC air conditioning system is to provide proper airflow cooling to every room. There are very detailed specifications and standardized procedure that are essential to any proper retrofit. In order to find an air conditioning company that you can be confident will follow specs look for one that has professional associations. A reputable contactor will be a member of associations like the Mechanical Contractors Association of America (MCAA) and the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE).
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Proper Air Conditioner Installation and Design
An HVAC air conditioning system should:
• Be sized appropriately to ensure proper airflow. A professional air conditioning company will do cooling load calculations for every room prior to installation to determine the size of the system you need.
• Be installed so that the static air pressure drop across the handler is within specs in order to meet the calculated loads.
• Make sure all return ductwork is sealed well to ensure adequate airflow to the fan. The ductwork must also prevent air from contaminants like exhaust fumes from entering the HVAC air conditioning system.
• Have properly sealed supply ductwork to ensure efficient airflow. Leaky ductwork can cause losses in energy efficiency.
• Have a return system sized properly to provide the right amount of return airflow.
• Maintain a balance of airflow between the supply and return systems.
• Have a sufficient amount of refrigerant.
HVAC Air Conditioning Air Distribution Systems
A certified air conditioning company should be well versed in the standard procedures for air conditioning installation, which includes the design of the air distribution system. Here are some of the guidelines on air distribution any proficient air conditioning company should follow:
• Use the Air Conditioning Contractors of America (ACCA) Manual J calculation to determine loads and airflow for each room.
• Develop a floor plan that lays out the entire duct system and accounts for obstacles like fire walls and roof hips.
• Determine the duct lengths and connections required to complete the layout.
• Use the ACCA Manual D calculation procedures to size the duct system.
• Use ACCA Manual S procedures in order to size HVAC air conditioning equipment in regard to cooling load.
• Appropriately charge the system and verify the charge.
• Test the furnace burner and firebox to be sure they are operating properly.
• Test the entire HVAC air conditioning system air flow for:
o Sizing
o Leaking
o Air handler fan flow
o Plenum static pressures
o Room and return air flows
In order to get your return on investment from retrofitting a more energy efficient HVAC air conditioning system in your building be sure to hire an air conditioning company that understands and follows the standardized procedures for air conditioning installation.
