Comfort Resource

When it comes to central heating and cooling, product performance and reliability relies heavily on the dealer's ability to design and install a system compatible for your home. According to the Air Conditioning Contractors of America, ACCA (an elite organization of heating and cooling contractors), there are three major factors that will impact your system's performance.

• Design

• Installation

• Commissioning

Here is a summary of how the process should flow.

Step One: Design

The dealer should...

• Ask questions about your comfort needs and inspect your home.

• Select the appropriate system and equipment, (operation and safety controls) that are compatible with the architecture of your home.

• Compare the marginal cost of efficiencies with the potential savings and return on investment.

• Perform load calculations for each room and central unit(s).

• Use the proper industry manual, procedures and manufacturers' data to select size, equipment placement, supply outlets, ducts and returns.

Step Two: Installation

The dealer should...

• Complete equipment installation based on local, state and federal codes, and utility regulations.

• Installing the indoor and outdoor equipment. A split system is the most common installation.

• Install refrigerant lines.

• Install supply air outlets and returns (if inadequate or non-existing).

• Install, seal or insulate duct runs to R-6 or R-8 (if inadequate or non-existing).

• Install control system (thermostats and/or zoning controls).

• Install furnace gas piping and vent (if applicable).

• Charge the refrigerant system.

Step Three: Commissioning

The dealer should...

• Check all control cycles.

• Check refrigerant charge.

• Check power supplies, connections, fuel trains and vents.

• Measure and adjust air flow to balance unit-to-rooms.

• Provide system and equipment education, manufacturers' documentation, and warranties.

Tips on selecting the right dealer.

Helpful list of industry terms and their definitions.