Friedrich FRH2VY4821STACNJ Air Handler 48000 Btu/h

Product Description

The FRIEDRICH FRH2VY4821STACNJ is a multi-position air handler rated at 48,000 BTU/h and designed for use with R454B refrigerant. It operates with a two-stage configuration and a variable-speed blower motor, allowing the system to modulate output based on load demand. This unit is sized for 3.5 to 4 nominal tons and is intended for residential or light commercial split-system applications. Licensed HVAC technicians install and commission this equipment as part of a matched refrigerant system.

This air handler suits installations where flexible orientation is required. Its multi-position design allows mounting in upflow, downflow, or horizontal configurations depending on the structure and duct layout. The two-stage operation reduces short-cycling, improves humidity control, and lowers average runtime at partial load. The variable-speed motor further supports comfort and efficiency by ramping airflow to match system demand across varying conditions.

Key Features

• 48,000 BTU/h nominal capacity covering 3.5 to 4 ton applications
• Compatible with R454B low-GWP refrigerant
• Two-stage operation reduces short-cycling and improves dehumidification
• Variable-speed blower motor modulates airflow to match system demand
• Multi-position design supports upflow, downflow, and horizontal installations

Compatibility

Designed as an OEM-style component for residential or light commercial split-system air handlers operating with R454B refrigerant at 3.5 to 4 nominal tons.

Installation Notes

Installation must be performed by a licensed HVAC technician holding the appropriate EPA Section 608 certification for refrigerant handling. Disconnect and lock out all electrical power to the system before beginning installation or service. Follow local mechanical and electrical codes, including applicable sections of the NEC, when wiring the unit and connecting low-voltage control circuits. Verify refrigerant circuit integrity and system airflow after installation before returning the equipment to service.

Technical Specifications

• Nominal Capacity: 48000 BTU/h
• Nominal Tons: 3.5 to 4 tons
• Refrigerant: R454B
• Stage: Two Stage
• Blower Motor: Variable Speed
• Orientation: Multi-Position

Standard Information

• Brand: FRIEDRICH
• Manufacturer Part Number: FRH2VY4821STACNJ