The Tranquility® High-Efficiency (TZ) Series offers high efficient 2-stage operation in a simple cabinet design.The Tranquility High-Efficiency Series also offers options that allow for application flexibility. Available options include hot water generator, enhanced iGate® controls, coated air coils, extended range insulation, UltraQuiet package, vFlow® internal variable water flow, motorized water valve, and automatic water flow valves.

• Sizes 024 (2 ton, 7.0 kW) through 060 (5 tons, 17.6 kW)
• Copeland UltraTech 2-stage scroll compressor
• Exceeds ASHRAE 90.1 efficiencies
• Galvanized steel construction
• Corrosion resistant polymer drain pan (optional stainless steel drain pan)
• Sound absorbing glass fiber insulation
• Unique double isolation compressor mounting for quiet operation
• Insulated divider & separate compressor/air handler compartments
• Field convertible discharge air arrangement for horizontal units
• Variable speed ECM fan motor
• Internally trapped condensate drain line (vertical units only)
• Eight safeties standard
• Extended range (20 – 120°F, -6.7 – 48.9°C) capable
• Advanced Controls — iGate communicating control provides advanced unit functionality & comprehensive configuration, monitoring & diagnostic capabilities through digital communication links with the variable-speed fan motor, variable-speed source pump (or modulating valve) & communicating thermostat or Configuration/Diagnostic tool.
• Internal Variable Water Flow — Industry-first, Built-in vFlow replaces a traditionally inefficient, external component of the geothermal system (water circulation) with an ultra-high-efficient, variable speed, internal water flow system.