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SE Tranquility Downflow | Premier Two-Stage

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et se residential featured
The Tranquility® 30 (SE) Premier Two-Stage Series showcases superb efficiency ratings, quiet operation, and application flexibility. The SE surpasses ASHRAE 90.1 efficiency standards and uses R-454B, a low Global Warming Potential (GWP) refrigerant, setting a high standard for eco-friendly performance.
energy star most efficient 2025
Warranty Details
FEATURES
  • Available sizes: 2–6 tons
  • Efficiencies: Up to 34.0 EER / 6.6 COP
  • Refrigerant Detection System (RDS) (mandatory on sizes 060 and 072, optional for sizes 018-048)
  • UL GREENGUARD Gold certified cabinet insulation
  • Intelligent Constant Volume (CV) EC motors for ultimate airflow control
  • Easy-to-clean rust-prohibitive stainless-steel drain pan
  • DXM2.6 Advanced Communicating Controls
  • Anti-short cycle and over/undervoltage protection
  • Easy-access swing-out control box
  • High pressure, loss-of-charge, and condensate overflow protection
  • Unique double-isolation compressor mounting with vibration isolation for quieter operation
  • Optional factory-installed compressor soft starter to reduce inrush currents for more efficient startups
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Performance Data (Ground Loop):
MODEL SE018
CAPACITY Full Load Part Load
COOLING BTU/HR 20,100 –
COOLING EER 19.5 27.9
HEATING BTU/HR 14,500 –
HEATING COP 4.1 4.6
MODEL SE024
CAPACITY Full Load Part Load
COOLING BTU/HR 26,300 20,300
COOLING EER 19.9 27.9
HEATING BTU/HR 17,800 14,400
HEATING COP 4.1 4.6
MODEL SE036
CAPACITY Full Load Part Load
COOLING BTU/HR 39,200 30,000
COOLING EER 19.5 26.0
HEATING BTU/HR 28,400 22,600
HEATING COP 4.2 4.6
MODEL SE048
CAPACITY Full Load Part Load
COOLING BTU/HR 52,000 40,500
COOLING EER 20.2 28.0
HEATING BTU/HR 37,600 29,900
HEATING COP 4.1 4.6
MODEL SE060
CAPACITY Full Load Part Load
COOLING BTU/HR 62,600 47,000
COOLING EER 18.7 25.1
HEATING BTU/HR 44,300 31,000
HEATING COP 3.9 4.1
MODEL SE072
CAPACITY Full Load Part Load
COOLING BTU/HR 74,700 59,000
COOLING EER 18.4 24.3
HEATING BTU/HR 54,000 43,000
HEATING COP 3.8 4.1
Find More Performance Data In Our Residential Product Catalog
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