Daikin 20 Ton 300,000 BTU 10.8 EER Commercial Gas Packaged Unit | 208/230V 3 Phase – R32 – Single Stage

High-Capacity Heating and Cooling Gas/Electric Packaged Rooftop Unit for Commercial Applications

The Daikin DSG2403DH00001S is a 20-ton commercial gas/electric packaged rooftop unit designed to provide reliable year-round heating and cooling for larger commercial buildings. Combining 400,000 BTU/h high-stage gas heating input with 230,000 BTU/h of cooling capacity, this all-in-one rooftop system helps deliver dependable comfort while simplifying equipment placement and preserving valuable indoor space.

Key Benefits

• 14 IEER / 10.8 EER Cooling Efficiency – Helps provide efficient cooling performance for larger commercial comfort applications.
• Two-Stage Gas Heating – Provides high- and low-stage heating operation to help match heating output to changing comfort requirements.
• Two Individually Circuited Scroll Compressors – Provides separate refrigeration circuits to support staged cooling operation and dependable performance.
• Two Direct-Drive Supply Fans – Provides dependable airflow while eliminating belt-driven fan maintenance.
• Packaged Rooftop Configuration – Combines major heating and cooling components in one outdoor unit to help preserve valuable indoor space.
• Heavy-Gauge Galvanized-Steel Cabinet – Provides durable outdoor construction with a UV-resistant powder-paint finish for rooftop installation.
• Convertible Airflow Orientation – Supports downflow or horizontal applications for greater installation flexibility.
• Tool-Less Filter Access – Provides convenient filter access to help simplify routine service and maintenance.

Two-Stage 400,000 BTU/h Gas Heating for Reliable Comfort

The integrated gas furnace provides 400,000 BTU/h of high-stage heating input and 324,000 BTU/h of high-stage heating output, with 300,000 BTU/h low-stage input and 243,000 BTU/h low-stage output. Two-stage gas heating helps match heating output to changing comfort requirements. The heating section uses eight burners and a dual-diameter tubular heat exchanger with Wrinkle Bend Technology. The unit provides 81% thermal efficiency, with a high-stage temperature-rise range of 25–55°F and a low-stage temperature-rise range of 15–45°F.

230,000 BTU/h Cooling Performance

The cooling system provides 230,000 BTU/h of nominal cooling capacity with a 14 IEER and 10.8 EER efficiency rating. The system uses R-32 refrigerant and two individually circuited single-stage scroll compressors to provide staged cooling operation. Copper tube/aluminum fin evaporator coils and microchannel condenser coils support efficient heat transfer and dependable cooling performance for larger commercial spaces.

Efficient Performance with Direct-Drive Operation

With a 14 IEER and 10.8 EER efficiency rating, the DSG2403DH00001S is designed to provide dependable and efficient commercial cooling performance. Two direct-drive supply fans provide airflow while eliminating belt-driven fan components. The indoor fan system provides a nominal airflow capacity of 6,590 CFM with a 3.5 HP indoor motor and an operating speed range of 300–1,600 RPM. The two individually circuited scroll compressors provide separate refrigeration circuits for staged cooling operation.

Packaged Rooftop Design for Flexible Installation

The packaged rooftop configuration combines the gas furnace, compressors, coils, supply fans, and controls into a single outdoor unit, helping simplify equipment placement and preserve valuable indoor space. The unit is designed for both new construction and retrofit applications, with convertible airflow orientation to serve downflow or horizontal installations. The DSG2403DH00001S uses a 208/230-volt, three-phase, 60 Hz electrical supply and measures 133 7/8 inches wide by 88 1/2 inches deep by 51 inches high. The unit has a sound level of 92.1 dB(A), an operating weight of 2,175 pounds, and a shipping weight of 2,290 pounds.

Controls & Comfort

The DSG2403DH00001S features a 24-volt electromechanical controls package and two individually circuited scroll compressors for staged cooling operation. Two-stage gas heating provides high- and low-stage operation, while two direct-drive supply fans provide dependable airflow.

Commercial Applications

The Daikin DSG2403DH00001S is designed for light commercial rooftop applications where dependable gas heating and electric cooling are required from a single packaged system. Its packaged rooftop configuration, direct-drive supply fan, factory-tested electrical system, and retrofit-friendly design make it well suited for applications such as retail spaces, offices, restaurants, schools, warehouses, and other light commercial buildings.

Service & Maintenance

The DSG2403DH00001S is designed with service accessibility in mind, including a weatherproof internal control box with convenient access and a draw-through filter section. The unit includes high- and low-pressure switches and factory wiring and testing to help support commissioning and start-up. The direct-drive indoor fan also eliminates belt and pulley maintenance associated with belt-driven blower systems.

Warranty

The Daikin DSG2403DH00001S includes a 20-year heat exchanger limited warranty and a 5-year parts limited warranty. Complete warranty terms and conditions are subject to the applicable Daikin warranty documentation.

Recommended Accessories

• Compatible Daikin Roof Curb – DSG Series 3–6 Ton Accessory
• Outdoor Thermostat with Housing for Gas Models
• Compatible Downflow Square-to-Round Adapter – DSG Series Accessory
• Compatible Horizontal Square-to-Round Adapter – DSG Series Accessory
• Compatible Economizer – DSG Series 3–6 Ton Accessory

Reliable Year-Round Comfort with the Daikin DSG2403DH00001S

Experience reliable year-round commercial comfort with the Daikin DSG2403DH00001S. Combining two-stage gas heating and efficient 230,000 BTU/h electric cooling in one direct-drive packaged rooftop system, this 20-ton unit provides a practical, space-saving solution for light commercial applications.