Daikin 4 Ton 13.4 SEER2 Air Conditioner and Multi-Positional Air Handler System | 208/230V 3 Phase - R32 - Single Stage

Reliable 4-Ton Commercial Cooling with a Daikin Split System Air Conditioner for Light Commercial Applications

The Daikin DC3SEA4830 / AMST48CU1300 is a nominal 4-ton split air conditioner system designed to provide ducted cooling for suitable light commercial and other compatible applications. Combining the DC3SEA4830 outdoor condensing unit, with a nominal cooling capacity of 48,000 BTU/h, and the AMST48CU1300 multi-position, multi-speed air handler, this system features single-stage scroll compressor technology, a direct-drive electronically commutated motor (ECM) blower, and R-32 refrigerant technology. The outdoor unit is designed for 208/230V, three-phase electrical service, while the indoor air handler uses 208/230V, single-phase power. The split configuration provides installation flexibility, and the indoor unit's multiple blower settings support airflow adjustment according to the system design and ductwork requirements.

Key Benefits

• Nominal 4-Ton Cooling Capacity – Provides 48,000 BTU/h of nominal outdoor cooling capacity for appropriately sized ducted applications.
• Single-Stage Scroll Compressor – Provides established compressor technology for dependable cooling operation during warm-weather conditions.
• Multi-Speed ECM Blower Motor – Offers multiple airflow settings to accommodate ductwork requirements and system commissioning needs.
• Multi-Position Air Handler – Supports upflow, downflow, and horizontal installation configurations to accommodate different building layouts.
• Flexible Split System Installation – Separates the outdoor condensing unit from the indoor air handler to provide flexibility in equipment placement.
• R-32 Refrigerant Technology – Uses R-32 refrigerant in the system configuration, with a factory-installed refrigerant sensor in the compatible AMST air handler.
• Commercial Electrical Configuration – The outdoor unit operates on 208/230V, three-phase power, making it suitable for compatible commercial electrical installations.
• Service-Friendly Components – Includes a factory-installed outdoor filter drier, accessible service valve gauge ports, and tool-less air handler filter access to support routine maintenance.

4-Ton Cooling Capacity for Commercial Comfort

The Daikin DC3SEA4830 / AMST48CU1300 combines a nominal 48,000 BTU/h outdoor air conditioner with an indoor air handler designed for compatible ducted cooling applications. The DC3SEA4830 uses a single-stage scroll compressor and R-32 refrigerant to provide cooling during warm-weather operation. The outdoor unit is nominally rated at 4 tons, while the AMST48CU1300 air handler is also classified in the nominal 4-ton capacity range. Actual system capacity depends on the approved indoor and outdoor equipment combination, indoor and outdoor operating conditions, airflow settings, refrigerant charge, and installation quality. Proper equipment sizing and commissioning are important for maintaining comfortable indoor temperatures.

Single-Stage Scroll Compressor and Cooling Performance

The DC3SEA4830 outdoor condensing unit features a single-stage scroll compressor and Copeland® CoreSense™ Technology. The DC3SEA R-32 commercial air conditioner series is designed for nominal cooling capacities ranging from 36,000 to 60,000 BTU/h. The DC3SEA4830 model features a factory-installed filter drier, sweat-connection service valves, accessible gauge ports, a high-pressure switch, and an enclosed contactor. The published DC3SEA series specifications list a nominal cooling capacity of 48,000 BTU/h for this model. Final system efficiency and rated cooling performance should be confirmed using the applicable Daikin or AHRI data for the exact DC3SEA4830 and AMST48CU1300 combination.

Cooling Efficiency and Single-Stage Operation

The DC3SEA4830 uses single-stage compressor operation. Its actual SEER2 and EER2 ratings depend on the approved indoor and outdoor equipment combination and the applicable manufacturer or AHRI certification data. These standardized efficiency ratings provide a basis for comparing equipment performance under defined test conditions. Actual energy consumption depends on building characteristics, outdoor temperatures, thermostat settings, operating schedules, duct design, airflow, and equipment maintenance. The AMST48CU1300 air handler features a direct-drive, 9-speed ECM blower motor, providing flexibility when selecting airflow settings to suit the installed ductwork and system requirements.

Split System Design for Flexible Installation

The split system configuration separates the DC3SEA4830 outdoor condensing unit from the AMST48CU1300 indoor air handler, allowing equipment placement to be adapted to the building layout. The DC3SEA4830 outdoor unit is factory charged for 15 feet of refrigerant tubing and has published service valve connections of 3/8-inch liquid and 3/4-inch suction. Daikin's published specifications identify the refrigerant line sizes and installation limits according to the applicable line-set configuration. The AMST48CU1300 supports upflow, downflow, and horizontal installation configurations. Refrigerant piping sizes, additional refrigerant charge, allowable line lengths, vertical separation, equipment clearances, and approved system compatibility must be confirmed against the applicable Daikin installation instructions before installation.

Airflow, Controls & Indoor Comfort

The AMST48CU1300 air handler features a direct-drive, 9-speed ECM blower motor, an all-aluminum evaporator coil with high-performance coated fin stock, and a factory-installed thermal expansion valve for compatible cooling applications. Its multi-speed blower provides flexibility when adjusting airflow to suit the installed ductwork and system requirements. The AMST R-32 series also incorporates a factory-installed refrigerant sensor designed for the lifespan of the coil. Compatible thermostat and control equipment must be selected according to the approved system configuration and manufacturer's requirements. Proper airflow adjustment, refrigerant charging, and thermostat setup are essential for achieving reliable cooling performance.

Commercial Applications and Installation Flexibility

The Daikin DC3SEA4830 / AMST48CU1300 is intended for suitable ducted cooling applications where the equipment combination, electrical supply, airflow requirements, and rated performance meet the project's specifications. Potential applications include appropriately sized offices, retail spaces, and other light commercial environments requiring centralized ducted air conditioning. The separate indoor and outdoor components provide flexibility for equipment placement, while the AMST48CU1300's multi-position cabinet accommodates different installation orientations. The DC3SEA4830 requires 208/230V, three-phase electrical service, while the AMST48CU1300 requires 208/230V, single-phase electrical service. Both supplies must be verified against the equipment nameplates and building electrical provisions before installation.

Service & Maintenance Features

The DC3SEA4830 outdoor unit includes a factory-installed filter drier, sweat-connection service valves with accessible gauge ports, a high-pressure switch, and an enclosed contactor. The outdoor cabinet features a coil guard and access provisions to support routine inspection and servicing. The AMST48CU1300 air handler features tool-less filter access, a coil mounting track for repositioning, and cabinet insulation designed for secure retention. Routine maintenance should include air filter inspection and replacement as needed, indoor and outdoor coil cleaning, condensate drainage checks, electrical connection inspection, and verification of refrigerant charge and airflow by qualified service personnel. All servicing must follow Daikin's applicable instructions for R-32 refrigerant systems.

Warranty

The Daikin DC3SEA commercial air conditioner series includes a 5-Year Parts Limited Warranty. Online registration must be completed within 60 days of installation to receive the 5-Year Parts Limited Warranty where registration is required by applicable law. The AMST R-32 air handler warranty must be confirmed separately using the applicable Daikin warranty documentation for the AMST48CU1300. Coverage, registration requirements, eligibility, limitations, and exclusions vary by product and jurisdiction. Review the current Daikin warranty documents for both models to confirm applicable coverage and conditions.

Recommended Accessories

• Compatible Thermostat or Commercial Control – Select a thermostat compatible with the single-stage cooling system and the approved indoor and outdoor equipment combination.
• Outdoor Equipment Pad – Provides a suitable support surface for the outdoor condensing unit where ground-level installation is used.
• Electrical Disconnect – Select an appropriately rated disconnect for the DC3SEA4830's 208/230V, three-phase supply and the AMST48CU1300's 208/230V, single-phase supply, in accordance with the equipment nameplates and applicable electrical codes.
• Refrigerant Line Set – Select compatible refrigerant piping with the required 3/8-inch liquid and 3/4-inch suction connections, sized and installed according to Daikin requirements.
• Electric Heater Kit – Select a compatible Daikin AMST48CU1300 electric heater kit if supplemental electric heat is required. Confirm approved kit compatibility, electrical requirements, and minimum airflow requirements before selection.

Dependable Commercial Cooling with the Daikin DC3SEA4830 / AMST48CU1300

Experience dependable ducted cooling with the Daikin DC3SEA4830 / AMST48CU1300 split system air conditioner. Combining a nominal 4-ton outdoor condensing unit with a multi-position, 9-speed ECM air handler, this system offers single-stage scroll compressor technology, R-32 refrigerant, flexible installation configurations, and service-friendly components for compatible light commercial applications. Confirm the approved indoor and outdoor equipment pairing and its certified performance ratings to ensure the selected configuration meets the project's cooling, electrical, and installation requirements.