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A split air-conditioning system consists of two components working in unison to provide the best possible cooling performance for your home. The outdoor condensing unit and indoor evaporator/air handler are engineered to work together, so special care must be taken when you’re faced with a split air-conditioning system where one component is failing. In most cases, since it’s exposed to the elements during its service life, the condensing unit will fail before the inside unit. While you may be tempted to just replace the broken component, most experts recommend replacing the entire cooling system. A new high-efficiency cooling system will provide long-lasting and energy efficienct home comfort, without the hazards of a mismatched system.

Most experienced HVAC technicians will tell you that installing a new indoor or outdoor A/C unit while leaving the older unit in place will result in a number of serious problems:

  • Your air-conditioning system won’t perform as effectively – if it performs at all – with a mismatched system.
  • Premature failure often results due to dissimilar demands placed on both units.
  • The cost of correcting a mismatched installation can easily outweigh the cost of installing a properly matched system.
  • New A/C units engineered to use R-410A refrigerant won’t work with older units using the previous industry standard R-22 refrigerant, without significant modifications. R-22 is being phased out for environmental reasons.

If you can get them to work, mismatched indoor and outdoor units are nowhere near as effective or efficient as a properly matched system. To get the most out of your next split A/C system, it’s best to have a qualified contractor conduct and verify a proper installation. This ensures that your new system is a perfect match that’s up to the task of keeping your home comfortable for years to come.

To learn more about the importance of a properly matched split air-conditioning system, don’t hesitate to contact us at NisAir Air Conditioning and Heating. Our customers throughout Martin, Palm Beach and Indian River counties stand behind our cooling, heating and ventilation expertise.