The Tranquility® Vertical Stack (TSL) Series is the first vertical stack classified as a ducted product. It offers an innovative, labor-saving solution for spaces with ductwork and where individual, quiet control of the heating and cooling system is important. Using EarthPure® (HFC-410A) refrigerant, the Tranquility® Vertical Stack (TSL) Series not only protects the environment, it does so while delivering unprecedented comfort, efficiency, and reliability.

• Sizes 09 (¾ ton, 2.6 kW) – 36 (3 ton, 10.6 kW)
• Environmentally-friendly EarthPure® (HFC-410A) zero ozone depletion refrigerant
• High-efficiency rotary or scroll compressors
• Exceeds ASHRAE 90.1 efficiencies
• Removable chassis allows staged installation and ease of maintenance
• Galvanized steel cabinet
• Unique double isolation compressor mounting for quiet operation
• TXV metering device
• Unit or remote-mounted controls available
• Optional ECM motor cabinet can slide over riser ball valve easily — this allows riser stack to be completed first
• Microprocessor controls standard or optional DXM2 control. Both available with ECM motors
• Available with constant torque or constant volume ECM motors
• LonWorks, BACnet, Modbus & Johnson N2 compatibility options for DDC controls
• Sentinel performance monitoring system
• Attractive return air panel with hinged access door (“G” panel)
• Aesthetically pleasing flush mounted return air panel (“L” panel)
• Multiple supply air discharge options
• Optional field convertible or factory configured supply air openings
• Stainless steel braided hose kits for connection from piping risers to chassis
• Options for both auto flow regulators and motorized water valves
• Optional, industry first modulating motorized water valve
• 8 safeties standard
• Wide variety of options including disconnect switch and extended range
• 3 footprint sizes
• Wall-mounted controller available
• Choice of high efficiency ECM or PSC motor
• Short cabinet height for adding field ductwork
• Standard high static motor intended for ducted static regain
• Cabinet can slide over riser ball valve easily — this allows riser stack to be completed first