PSD-QS (02/16) Page 236) Internal Heat Recovery SystemThe PSD compressor unit has a built-in heat recovery system which provides supplemental domesticwater heating at a significant operating cost savings. The heat recovery system operates throughoutthe year to provide free hot water when operating in cooling mode and reduced cost hot water whenoperating in the heating mode. The heat recovery system supplements hot water production, butdoes not replace the standard storage water heater sized for the application.The heat recovery system may be plumbed into an existing standard water heater as illustrated inFigure 12.Figure 12. Standard Storage Water Heater – Service ConnectionsAlternatively, the heat recovery system may be plumbed to the ETI Series GSTE storage waterheater as shown in Figures 13a and 13b. The Series GSTE storage water heaters are preferredbecause the heat recovery system ports are designed to provide more efficient heat exchange withinthe storage water heater.
