Mitsubishi PAA-BA18NL 18,000 BTU intelli-HEAT Cased Coil Indoor Unit - R454B

Mitsubishi PAA-BA18NL – 18,000 BTU R-454B Cased Coil Indoor Unit

Deliver efficient, year-round comfort with the Mitsubishi PAA-BA18NL, a compact high-performance cased coil indoor unit designed for use with Mitsubishi intelli-HEAT® systems and compatible gas furnaces. Ideal for residential and light commercial applications, this versatile unit provides reliable heating and cooling with flexible installation options for a variety of HVAC configurations.

Flexible Furnace-Compatible Design
Engineered to work with most ANSI-certified gas furnaces, the PAA-BA18NL supports Mitsubishi’s intelli-HEAT® technology for intelligent switchover between heat pump and furnace operation. This allows the system to automatically optimize comfort, efficiency, and energy usage during colder weather conditions.

Efficient, Compact Performance
With a nominal cooling capacity of 18,000 BTU/h and heating capacity of 19,000 BTU/h, this indoor unit delivers dependable airflow and precise temperature control. Rated airflow reaches up to 525 CFM, with maximum airflow up to 812 CFM for balanced air distribution and enhanced indoor comfort.

Versatile Multi-Position Installation
Designed for flexible installation, the PAA-BA18NL supports both horizontal and vertical orientations, including left, right, upflow, and downflow configurations. Included drain pans simplify installation and make the unit adaptable to a wide range of HVAC system layouts.

Compact, Durable Construction
Built with a high-quality drain pan featuring excellent heat tolerance and low moisture absorption, this unit is engineered for long-lasting reliability. Its compact cabinet measures just 17-9/16″ W × 21-7/16″ D × 27-1/2″ H, making it suitable for tighter mechanical spaces and retrofit applications.

Smart Control & Connectivity Options
Compatible with Mitsubishi’s Comfort app and a variety of wired and wireless controllers, the PAA-BA18NL supports advanced control customization, BACnet®/Modbus® integration, wireless sensors, and thermostat interfaces for convenient operation and enhanced system management.

Environmentally Friendly Refrigerant
Uses next-generation R-454B refrigerant for improved environmental performance and reduced global warming potential compared to older refrigerants.

Ideal for homeowners seeking a compact, high-efficiency hybrid heating and cooling solution with intelligent furnace integration, flexible installation options, and dependable comfort performance.