Weatherking WA14AY48AJ1NA Condensing Unit 4 Ton 14.3 SEER2

Product Description

The WEATHERKING WA14AY48AJ1NA is a 4-ton residential split-system condensing unit rated at 14.3 SEER2, designed for R454B refrigerant. It delivers 48,000 BTU/h of cooling capacity and meets current Department of Energy efficiency standards under the M1 test procedure. This unit houses the compressor, condenser coil, and condenser fan in a single outdoor cabinet. Licensed HVAC technicians install and commission this equipment as the outdoor section of a split cooling or heat-pump system paired with a matching indoor coil and air handler.

This condensing unit is suited for residential and light-commercial applications requiring 4-ton cooling capacity. R454B is an A2L low-GWP refrigerant classified as mildly flammable, which requires technicians to follow applicable codes and manufacturer guidelines for A2L refrigerant handling. Typical installations include new construction and replacement projects where a higher-efficiency, lower-GWP refrigerant system is specified to meet current regulatory requirements.

Key Features

• 48,000 BTU/h cooling capacity at 4-ton nominal tonnage
• 14.3 SEER2 efficiency rating under DOE M1 test procedure
• R454B refrigerant — A2L low-GWP replacement for R410A systems
• Outdoor condensing unit for split-system cooling applications

Compatibility

Designed as an OEM split-system condensing unit intended for pairing with a compatible indoor evaporator coil and air handler sized for 4-ton capacity. Consult WEATHERKING equipment documentation for approved matched-system combinations.

Installation Notes

Installation must be performed by a licensed HVAC technician certified to handle refrigerants, including A2L classifications under current EPA Section 608 requirements. Disconnect and lock out all electrical power before servicing or connecting refrigerant lines. R454B requires tools and recovery equipment rated and labeled for A2L refrigerants — do not use equipment designated solely for R410A or R22. Follow local mechanical codes and manufacturer specifications for line-set sizing, electrical disconnect ratings, and outdoor unit clearances.

Technical Specifications

• Cooling Capacity: 48,000 BTU/h
• Efficiency Rating: 14.3 SEER2
• Refrigerant: R454B

Standard Information

• Brand: WEATHERKING
• Manufacturer Part Number: WA14AY48AJ1NA