W-series units are designed to produce large quantities of hot water. Units can be installed on either open well systems or on closed loop systems. Available with domestic hot water desuperheaters and as either heating only or as heating/cooling systems. Very popular for use with concrete in-floor heating systems, swimming pool heating, or any other application where large quantities of hot water are required.

Typical Piping for hot water heating.

Infloor heating possible plumbing layout.

The dual compressors (1) HP & (2)HP can be operated to give 3 stages of capacity at an ultra high efficiency rate. These units can be equipped with either 316 Stainless Steel brazed plate exchangers or high efficiency copper / cupro-nickel coaxial style exchangers depending on the application. The heat exchangers are sized for maximum output therefore when running on the first or second stage the exchangers are vastly oversized for the compressor capacity yielding the highest suction and lowest discharge pressure possible. COP's range from 3.1 to 4.5 depending on the water inlet and outlet conditions.

Cabinet and Piping dimensions for "W" and "W3" series liquid-to-water heat pumps