The PWFY Hydronic Heat Exchanger is available in two configurations, the HEX (-AU) and the Booster (-BU). Each provides unique solutions to incorporate into an existing VRF system for an efficient means to heat and cool water. The PWFY Hydronic Heat Exchanger is a closed-circuit water heater that works with the Y-Series and R2-Series outdoor units. HEX unit (-AU) Heats water to 115° F Hydronic heat exchanger transfers energy from refrigerant to water Can be used to recover waste heat from cooling operation to water when combined with R2 or WR2 systems, resulting in large energy savings Applications include radiant heating, snow melt, reheating air, preheating hot water and more Cools water to 41° Can be used for cooling outside air, cooling pool water, misting stations, process cooling, drinking water and more Booster unit (-BU) Heats water to 160° F Hydronic heat exchanger transfers energy from refrigerant to water Can be used to recover waste heat from cooling operation to water when combined with R2 or WR2 systems, resulting in large energy savings Applications include radiant heating, hot water preheating, melting snow, reheating air, warming pools, and more Unit is not suitable for direct potable water flow Includes R134A compressor circuit for boosting water temperature Can only be used with R2 and WR2 systems