Learning About Commercial HVAC Systems
About Me
Learning About Commercial HVAC Systems

Hello, my name is Jacob. I would like to talk about proper installation and repair of the HVAC system in your commercial building. Full scale HVAC systems for commercial buildings require ongoing maintenance and repairs to keep every floor and room at a comfortable temperature. These temperature control systems also control the air quality in the building by sending the airflow through filter elements. My site will cover all aspects of the upkeep needed for these systems. I will also talk about the benefits of keeping your air quality and temperatures at desirable levels. Thanks for coming to visit my website.

Learning About Commercial HVAC Systems

Is Your Central AC Cooling Unevenly? 3 Possible Causes

Isaiah Chapman

A central HVAC system is meant to bring every room in your home to the same temperature. If your air conditioner is underperforming, you may struggle with stubborn hotspots or rooms that refuse to cool. Central air conditioners are complex, and tracking down the reason for uneven cooling can be difficult. Here are three possible causes for a central AC cooling unevenly.

1. Duct Leaks

Duct leaks of sufficient size can handicap your air conditioner's ability to cool every room connected to that branch of ducts. Unfortunately, duct leaks aren't uncommon: a typical duct system loses 25 to 40 percent of heating and cooling energy from the furnace and AC. Leaks form as your ducts age when pressurized air forces its way out of any small gaps or cracks in your ductwork.

HVAC technicians use a specialized vacuum and pressure gauge to test the air pressure in your ducts. This system identifies even the smallest leaks that would be difficult or impossible to find by visual inspection alone. To repair duct leaks, your technician can seal them with foil tape or mastic sealant.

2. Insufficient Insulation

If your house is insufficiently insulated, you may have problems keeping certain rooms warm even if your air conditioner is working as intended. Attic insulation is a particular area to be wary of, as a poorly insulated attic will cause your home to lose energy year-round. If the upper floors of your home struggle with uneven cooling more than the lower levels, consider hiring a professional to inspect your attic insulation.

3. Short Cycling

When your AC is sized for your house, it's assumed that it will run a complete cycle to cool every room. Short cycling is a term used when your air conditioner starts and stops more frequently than it should. Short cycling causes uneven cooling because it reduces the total volume of cool air your AC outputs per cycle.

When your air conditioner short cycles, the rooms furthest from the central blower will have the most difficulty staying cool. Cool air will reach the closest rooms first, while output to the furthest parts of your home will be reduced. Your HVAC contractors may need to correct a power supply issue or recharge your refrigerant to correct short cycling.

Whatever the cause, uneven cooling isn't a problem you should have to live with. Talk to an HVAC contractor if your central air conditioning unit isn't providing adequate comfort or energy efficiency.