The APOLLO Geothermal Heat Pump MAX 48K BTU 4 Ton Water-to-Water system is designed to deliver reliable heating and cooling using geothermal technology. With a 48,000 BTU (4-ton) capacity, it is built to support residential and light commercial applications that require consistent performance.
This water-to-water heat pump is engineered for integration into geothermal systems, providing efficient heat transfer for space heating and cooling needs. Its design supports dependable operation while maximizing system efficiency when paired with compatible geothermal components.
Built under the APOLLO MAX series, this unit is intended for users seeking a high-capacity geothermal solution that supports long-term system performance and energy-efficient operation.
Features

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Cools Efficiently
Indoor Heat Exchanger water inlet/outlet: 54°F/45°F -
Heats Efficiently
Indoor Heat Exchanger water inlet/outlet: APOLLO heat up to 175ºF/80ºC -
Energy Savings
COP reaching as high as 5.81 for a SCOP, with an annual COP of 4.2 -
Sound Level
52 dB(A) -
Compatibility
Water Inlet/Outlet Pipe Diameter: 1-1/4 inch -
Compressor Technology
DC Compressor Type: Twin Rotary




