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HVAC Product Catalog - Navigator®
GZ 25–80 Sun™ Premier

25–80 ton Rooftop Unit
York - Premier
YORK® Sun™ Premier 25–80 ton rooftop units (RTU) deliver enhanced performance and efficiency with greater flexibility and ease of installation and service to reduce operational and maintenance costs. We have reimagined the design features of an applied HVAC system into the value and simplicity of a packaged RTU. For each available tonnage, the platform can meet both stringent Department of Energy (DOE) 2023 energy efficiency standards and the Consortium for Energy Efficiency (CEE) highest tier ratings, which translate into significant cost-savings over the life of the RTU. This platform offers economic base models with the most complete range of product and control options for refined comfort and performance.
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File Type
Category Title Type File Type Action
System Type:
Air Conditioners
Equipment Type:
7 - Single Package Cooling and Heating Units
Product Line:
Sun™ Premier
Product Type:
Rooftop Unit
Application Type:
JCI Product:
Competitor Product:
Descriptor A:
Descriptor B:
Nominal Capacity:
25–80 tons
Efficiency Rating:
Up to 11.4 EER / 16.9 IEER
Heat Exchanger:
1 year
1 year
Manufactured Housing
  • 2 tiers of capacity and efficiency per tonnage, enabling greater application flexibility to meet specific needs
  • Efficiency, flexibility, and indoor environmental quality
    • Highest standard efficiency offering in its class
    • Standard double-wall foam panels for improved thermal efficiency
    • Variable speed compressor and variable speed drive (VSD) fan options with the most advanced refrigeration, airflow and heat transfer technologies in a highly-optimized system
    • Other modulating features for refined comfort, including an energy recovery wheel, hot gas reheat, and electric and gas heat
    • Standard direct drive plenum supply fan
    • The broadest array of airflow features, including various airflow paths and duct configuration capability, as well as optional indoor air quality (IAQ) features such as ultraviolet (UV) lights, humidifier, sound attenuator and final filters
    • Optional blank sections for placement of additional accessories without having to find space in the duct
  • Controls
    • Smart Equipment enabled to maximize control for greater efficiency, extended equipment life and reduced operating costs
    • Best-in-class user interface, adjustable height display, start-up wizard and an array of user adaptable parameters to help expedite commissioning
    • Optional mobile access portal (MAP) that provides remote monitoring capability for fewer trips to the jobsite or rooftop to diagnose issues
    • Complete control across all available rooftop units and integration with other control systems and interfaces, including zone controllers and building management systems
    • Seamless integration with other YORK building automation platforms, including Verasys™
  • Service options to minimize roof time and simplify maintenance such as:
    • Airflow measurement stations
    • Doors with viewports and adjustable height single point latches
    • Dirty filter gauges and filter pressure transducer
    • Replaceable core filter driers and suction, liquid, and discharge shutoff valves
  • Peace of mind
    • Redundancy of refrigeration circuits, variable frequency drives (VFDs), gas heat modules, and twinning algorithms enables one system to continue operating if the other fails
    • 1-year parts warranty and standard 6-month or 1-year labor warranty for certified contractors eclipses the industry 30-day standard
    • Extensive development testing and factory end-of-line testing help ensure unit quality, performance and adherence to all industry-specific safety and quality processes, including ASHRAE 90.1-2019 and ASHRAE 189.1-2014 (EER/IEER), 2023 Department of Energy Efficiency Code (efficiency), AHRI 340/360 (performance), ANSI/AHRI 370-2015 (outdoor sound), ANSI/AHRI 260-2017 (indoor sound), ANSI Z83.8-2016/CSA 2.6-2016 and ASHRAE 62 (ventilation and IAQ) and UL 60335-2-40 (safety)
For a complete list of all features and options, refer to the Tech Guide in the Guides and Documents section below.
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