Mitsubishi PAA-BA42NL 42,000 BTU intelli-HEAT Cased Coil Indoor Unit - R454B

Mitsubishi PAA-BA42NL – 42,000 BTU R-454B Cased Coil Indoor Unit

Deliver powerful, year-round comfort with the Mitsubishi PAA-BA42NL, a 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 indoor unit provides efficient heating and cooling performance with flexible installation options for a wide range of HVAC system configurations.

Flexible Furnace-Compatible Design
Engineered to work with most ANSI-certified gas furnaces, the PAA-BA42NL 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, High-Capacity Performance
With a nominal cooling capacity of 42,000 BTU/h, this indoor unit delivers dependable airflow and precise temperature control for larger residential spaces. Rated airflow reaches up to 1,225 CFM, with maximum airflow up to 1,660 CFM for strong, even air distribution and enhanced indoor comfort.

Versatile Multi-Position Installation
Designed for flexible installation, the PAA-BA42NL 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 variety of HVAC system layouts.

Compact, Durable Construction
Built with a durable, high-quality drain pan featuring excellent heat tolerance and low moisture absorption, this indoor unit is engineered for long-lasting reliability. Its cabinet measures 17-1/2″ W × 21-3/8″ D × 32″ H, making it suitable for retrofit projects and tighter installation spaces.

Smart Control & Connectivity Options
Compatible with Mitsubishi’s Comfort app and a variety of wired and wireless controllers, the PAA-BA42NL supports advanced control customization, BACnet®/Modbus® integration, wireless sensors, and thermostat interfaces for enhanced convenience and 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 flexible, high-efficiency hybrid heating and cooling solution with intelligent furnace integration, powerful airflow performance, and adaptable installation options.