The outside condensing unit of your split system A/C starts acting up, but the indoor evaporator/air handler is running fine – what do you do? While you may feel tempted to simply replace the outdoor unit with a new one, doing so could lead to costly problems down the line. By taking the time to understand why finding the perfect match is so important, you’ll save yourself from future expenses and stress.
A mismatched A/C is a recipe for trouble
The components of your split system A/C were specifically designed to work together in order to maximize efficiency and performance. When a poorly matched unit is integrated into your system, you are asking for trouble. Here’s why:
- Varying efficiency ratings – As of 2006, new central cooling systems sold in this country were required to have a minimum seasonal energy efficiency ratio (SEER) of 13. If your current system was purchased before 2006, there’s a good chance that the SEER is much lower than this. But installing one unit with a higher SEER will not raise the efficiency of the overall cooling system. Instead, the conflicting efficiency ratings will put undue stress on each component, lowering system capacity and possibly leading to expensive repairs.
- Different refrigerants – Your current A/C probably utilizes R-22 as its refrigerant. Out of environmental concerns, however, the federal government a few years ago mandated that R-22 be replaced by EPA-approved formulas such as R-410A. If the two units of your split air-conditioning system rely on two different refrigerants, you’ll likely experience a loss in efficiency as your equipment experiences significant stress. Ultimately, this could lead to a premature breakdown.
- Warranty invalidation – Attempting to utilize mismatched equipment will likely render any warranty coverage null and void. This will cost you even more money out of pocket should any problems arise.
- Ineligibility for incentives – Some utility companies offer rebates to homeowners who install high-efficiency HVAC systems. Additionally, federal tax credits are available on qualifying systems. Eligibility, however, is usually contingent upon having your systems properly matched for optimum performance.
For more advice on replacing your split system A/C, please contact us at Ace Hardware Home Services, Inc. We proudly serve residents of the Dayton area.
Our goal is to help educate our customers in Dayton, Ohio about energy and home comfort issues (specific to HVAC systems). For more information about split system A/Cs and other HVAC topics, download our free Home Comfort Resource guide.
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