The Daikin/Goodman DFG Commercial Gas Packaged Air Conditioners are engineered for optimal performance, offering features and options aimed at minimizing installation and operation expenses, enhancing indoor air quality, ensuring efficiency, and extending lifespan. Designed for both new constructions and retrofit projects, Daikin Packaged Rooftop Units (RTUs) prioritize swift and straightforward installation. Installers can take advantage of field-installable options like roof curbs for new constructions.
These rooftop units are primarily intended for comfort cooling applications in standard heating, ventilation, and air conditioning scenarios. However, for operations involving high ambient temperatures, high altitudes, unconventional voltages, or specific unit selections beyond the cataloged range, consulting a local Daikin sales representative is recommended. Proper rigging as per installation manual instructions is crucial for optimal unit operation. Fire dampers, if necessary, must be installed in ductwork in accordance with local and state regulations, as no space is allocated for them within the unit. Adhering strictly to factory check, test, and start procedures ensures satisfactory startup and operation. In many cases, significant energy savings are achievable through economizer operation, often eliminating the need for mechanical refrigeration below an ambient temperature of 50°F.
Serviceability is a key focus in the design of Daikin packaged rooftop units, ensuring ease of maintenance and future servicing. Features such as slide-out blowers for easy fan access and removal, independent compressors located outside the air bypass for unobstructed access, and color-coded, continuously marked wiring enhance serviceability. Additionally, ETL-certified heating modules provide tailored solutions, while Wrinkle Bend Technology reduces manufacturing stress, enhances heat transfer, and improves overall efficiency. Models equipped with two-stage capability cater to varying heating load requirements, and all 3-phase models boast a minimum 80% thermal efficiency.
Stringent factory testing guarantees pressure and leak integrity, with coils featuring Thermal Expansion Valves, high and low pressure switches, service ports, and high-capacity filter dryers. Furthermore, 25-ton units are outfitted with Aluminum micro channel indoor coils, offering durability and efficiency.
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