Building Codes for Air Handling Unit Installation

Air-handling units operate as the host for a lot of commercial HVAC equipment, including heat pumps and air conditioners. These units mix outside air with return air from the inside space. The air is cooled or heated and then distributed throughout the building via ducts. When doing commercial HVAC installation for air-handling units, there are local, state and federal codes and regulations that must be adhered to. All electrical wiring must be in compliance with the National Electric Code (NEC). Common local codes include that a licensed professional complete electrical connections and lining the cabinet with extra insulation. Since local codes tend to vary, it’s best to consult with the local building-code inspector to learn about all of the requirements for a commercial HVAC installation. This expert is also a good source for learning about the state and federal codes.

The Commercial HVAC Installation

Both the installation and servicing of air-handling units can be hazardous due to electrical components and system pressure and should only be done by a qualified technician. Many packaged air-handling units are mounted in a rigid frame, have an open-wire design and are multi-stage. Pilot duty switches and contactors are factory installed and have the capability for single point electrical connections. These units come in both vertical and horizontal configurations, and there must be sufficient clearance for airflow.

Air-handling units are connected to the ductwork, and flexible duct connectors are recommended. They also have easy access panels to service the heater elements. It’s recommended to insulate the outside of the heater to minimize condensation during the cooling mode and give protection from hot surfaces when in the heating mode.

Today’s modern commercial HVAC air handlers are highly energy efficient. There are manufacturers on the market that offer units with 92 percent efficiency. There are also units designed for any split system commercial application that requires an outdoor and indoor air handler furnace. Models are available with options for different air path configuration and offer endless flexibility in application.

Commercial HVAC Services at Conditioned Air in Macon, GA

At Conditioned Air, we install air-handling units in complete compliance with local, state and federal codes and regulations. Our project managers are experienced in design-build plans and fast track projects. Our top brand equipment is ideal for office buildings, schools, manufacturing facilities, hospitals and much more. From 5 tons in capacity to 800 tons in capacity, our skilled technicians have installed it all. For savings, we offer our commercial customers Internet coupons with rebates on select units and discounts on commercial repairs. Be sure to give us a call for any of your commercial heating and cooling needs.