Trane 2 Ton XR 16 SEER Air Conditioner has a SEER rating of up to 16.00, making it an excellent choice for home comfort and for earning energy-efficiency tax credits. Economical operation, The increased energy efficiency of this air conditioning system may substantially lower your home cooling costs. Durable construction.Materials for all components in this central A/C unit are tested again and again for long-lasting performance and reliability. Cleaner, healthier indoor air. Add Trane CleanEffects™ to your air conditioning system for advanced air filtration that removes more dust, pollen and other irritants from conditioned air for a cleaner, healthier, more comfortable home.