4 Ton Rheem 13.4 SEER2 R-454B Single Stage Heat Pump Packaged Unit RHPBYB048AJT000NAAUA

The Rheem RHPBYB048AJT000NAAUA is a 4-ton packaged heat pump, which means the heating and cooling equipment sits in one outdoor cabinet instead of being split between an indoor air handler and a separate condenser. It uses a newer, lower-impact refrigerant that already meets the EPA’s 2025 environmental rules, so you don’t have to worry about a major equipment change later.

Because everything is in one unit, it is a good fit for tighter lots, slab homes, manufactured homes, and installations where there is little room for indoor equipment. The cabinet can sit on the ground or a rooftop and can even be placed close to the house without blocking airflow. Raised metal base rails keep the unit off the ground, and a louvered outdoor coil guard helps protect it from weather and yard damage.

Inside the cabinet, a quiet scroll compressor handles everyday heating and cooling. Separate expansion valves for heat and cool help the system run more steadily in both seasons. Easy-access panels and a slide-out blower section make service simpler when a technician needs to work on it.

A built-in refrigerant safety system watches for leaks. It works with a standard 24-volt thermostat and will automatically shut the unit off if it detects too much refrigerant in the air.

This model ships without factory electric heat, but optional heat kits can be added later for extra warmth on the coldest days. Altogether, it is a compact, service-friendly heating and cooling package designed for dependable year-round comfort in a smaller outdoor footprint.