- AJ020DXS3CG/AA
Commercial Air Conditioner Standard
- Available Capacities (Btu/h)
- 18K / 24K / 30K / 36K

The CAC Standard provides four different ways to connect the piping for greater flexibility during installation. In addition, system operating modes can be set to heating/cooling, heating only or cooling only to meet the needs of any application.
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AC Features
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R-32
UTILIZES R-32 REFRIGERANT
R-32 refrigerant reduces carbon emissions with a lower global warming potential (GWP) than traditional refrigerants, making it a more sustainable choice for environmentally conscious HVAC solutions.
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ULTIMATE ZONING SOLUTION
ULTIMATE ZONING SOLUTION
A multi-zone system uses multiple indoor units connected to a single outdoor unit, giving you greater control over your home comfort and avoids wasting energy on conditioning unoccupied spaces.
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EMERGENCY HEAT OPERATION
EMERGENCY HEAT OPERATION
Auxiliary heat sources like baseboard radiators, hot water coils, and duct heaters can automatically activate in emergency situations to provide reliable heat if the primary system encounters issues. This capability is available for select error codes, ensuring safe operation when needed most.
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SMART HEAT SOURCE MANAGEMENT
SMART HEAT SOURCE MANAGEMENT
During extreme temperatures, you can choose to prioritize your secondary heat source as the primary method, ensuring reliable warmth when needed. Conversely, when temperatures rise, the secondary heat source is restricted, allowing the energy-efficient heat pump to take over. These features offer the perfect balance of comfort, cost savings, and sustainability, giving you flexible control to reduce energy bills and your carbon footprint.
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TOTAL CONTROL
TOTAL CONTROL
Samsung’s SmartThings app puts control at your fingertips, allowing you to remotely adjust temperatures, customize settings, and receive real-time updates on your system’s performance. With energy efficiency more important than ever, SmartThings Energy helps you reduce your carbon footprint and lower energy costs. It analyzes your usage habits and provides personalized recommendations to improve efficiency. Plus, it lets you easily manage the energy consumption of not just your Samsung appliances, but your entire home.
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START-UP MADE SIMPLE
START-UP MADE SIMPLE
Installation and startup is made easy through the use of auto addressing of the indoor units, and an automatic pipe-inspection mode which helps reduce crossed-pipe mistakes by automatically matching each indoor unit’s address with it’s corresponding refrigerant ports.
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FLEXIBLE INSTALLATION
FLEXIBLE INSTALLATION
This versatile system provides additional flexibility when installing a system that requires more than one zone of comfort, without adding parts, installation, and added costs of several outdoor units.
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Brochures & Literature
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Pairs With
Duct S Multi-Position Air Handler (MPAH) WindFree™*
4-Way Cassette -
Controls
Additional Information
![]() | Product Registration Required. Conditions Apply. |
![]() ![]() | Proper sizing and installation of equipment is critical to achieve performance. Split system air conditioners and heat pumps (excluding ductless systems) must be matched with appropriate coil components to meet Energy StarÒ criteria. Ask your contractor for details or visit www.energystar.gov. |
![]() | The AHRI Certified® mark indicates Samsung's participation in the AHRI Certification program. For verification of individual certified products, go to www.ahridirectory.org. |
![]() | Available for download on the Google™ Play store and App Store®. A network connection is required. Samsung application account is necessary. |
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*The WindFree™ unit delivers an air current that is under 0.15 m/s while in WindFree™ mode. Air velocity that is below 0.15 m/s is considered “still air” as defined by ASHRAE 55-2013 (American Society of Heating, Refrigerating, and Air-Conditioning Engineers). |
Flexible home comfort with individual temperature control.
The Free Joint Multi (FJM) system is designed to provide heating and cooling to multiple rooms in your home. This system allows one outdoor unit to power up to five different indoor units.
- Ultimate Zoning Solution: Allows you to control the heating or cooling of individual rooms to save energy by conditioning only the spaces in use.
- Energy Star® Certified: Save money by using less energy without sacrificing performance or functionality. Additionally, many Samsung products qualify for homeowner rebates provided by federal, state or local governments and utility companies.
- Smart Home Solution: The Samsung SmartThings† App lets you connect, automate and manage all of your Samsung and SmartThings-compatible devices with a single, easy-to-use app. You’ll have access to operation settings and temperature, advanced energy monitoring and monitoring from anywhere using your mobile device.
- Warranty: With Samsung, you get comfort for today and peace of mind for tomorrow. We back all Samsung heating and cooling systems with a robust warranty, so you are getting comfort and quality for years to come. Rest assured.
Product Registration Required. Conditions Apply. | |
Select models are ENERGY STAR® labeled. Proper sizing and installation of equipment is critical to achieve performance. Split system air conditioners and heat pumps (excluding ductless systems) must be matched with appropriate coil components to meet ENERGY STAR® criteria. Ask your contractor for details or visit www.energystar.gov. | |
†Available for download on the Google™ Play store and App Store®. A network connection is required. Samsung application account is necessary. |