Is only one component of your split air-conditioning system giving you trouble? The idea of replacing just the ailing unit may seem like the most cost-effective solution, but it likely will only lead to trouble. By taking the time to learn why split air-conditioning systems must be carefully matched, you will avoid a lot of stress, and save money in the long run.
What’s the problem with a mismatched split air-conditioning system?
The indoor coil units and outdoor condensing units that make up a split system air-conditioner are specifically designed to work together as a team. The result is a cooling system that is able to operate at maximum efficiency and provide the highest level of comfort possible. When the team is split up, however, problems ensue. Here’s why:
- Incompatible efficiency ratings – If your current equipment was installed before 2006, it probably has a seasonal energy efficiency ratio (SEER) rating of less than 10. Units manufactured after 2006, however, are required to have a minimum SEER of 13. Upgrading only one component of your split air-conditioning system to a higher SEER rating will cause the whole system to experience stress, and it will be unable to meet the rated efficiency standards.
- Conflicting refrigerant – Due to concerns for the environment, the federal government is phasing out cooling equipment that utilizes R-22 refrigerant. Newer air conditioners are designed to rely on EPA-approved, non-ozone-depleting refrigerants such as R-410A. If you try to integrate two units that utilize different refrigerants, you’ll stress your system, reducing efficiency. At worst, the incompatibility of the different refrigerant formulas will lead to premature failure.
- Ineligibility for rebates – Some utility companies offer rebates to homeowners who upgrade to energy-efficient equipment. In order to qualify, though, you will need to prove that your system was properly matched for efficient performance. Federal tax credits for energy-efficient upgrades also won’t apply to partial split-system upgrades.
For a quote on full replacement of your split air-conditioning system, contact the experts at Marsh Heating & Air Conditioning. We proudly serve residents of the Twin Cities Metro area.
Our goal is to help educate our customers in Minneapolis-St. Paul, Minnesota about energy and home comfort issues (specific to HVAC systems). For more information about split air-conditioning systems and other HVAC topics, download our free Home Comfort Resource guide.
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