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Why is Air Conditioner Installation Important?

WHY IS AIR CONDITIONER INSTALLATION IMPORTANT?

Incorrect installation of central heat pumps and air conditioners leads to high electric bills, poor indoor comfort, and maintenance problems. Many studies have shown that heat pumps and air conditioners — even new units

Source : U.S. DEPARTMENT OF ENERGY

— are often improperly charged, which can reduce system capacity and efficiency by 20 percent or more. Incorrect air flow across the indoor coil is another common problem in air conditioner and heat pump installations, with a subsequent impact on indoor comfort and operating costs. Low air flow affects the cooling and heating capacity and efficiency of the unit. Excess air flow is a less common problem, but it can cause poor dehumidification during cooling, duct noise, and drafts.

Reduced air flow across the outdoor coil or inadequate air circulation around the outside unit also lowers capacity and operating efficiency. This often occurs when bushes are planted too close to the unit, the unit is installed under a porch, or the outdoor coil becomes clogged with leaves, pollen, or lint from a dryer.

Improperly installed controls can cause poor humidity control during cooling operation and inefficient operation of a heat pump during the heating season. Other installation problems that lower capacity and operating efficiency and cause maintenance problems include refrigerant lines that are too long, incorrectly pitched, or crimped.

DESIGN AND INSTALLATION ELEMENTS

Proper heat pump and air conditioner installation is just one of four elements needed to provide an economical, efficient, and comfortable heating and cooling system. The design and installation of central heat pump and air conditioner systems must also address the following elements before or during
equipment installation:

• Equipment must be properly selected and sized to meet house heating and cooling loads and to be as efficient as possible.
• The duct system must be correctly designed to work with the air conditioning and heat pump equipment and to distribute conditioned air properly throughout the house.
• The duct system must be properly installed and sealed to ensure its design performance.

Air Conditioner, Installation