EarthLinked Technologies Prime-025, Quick Start Instructions

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PSD-QS (02/16) Page 23
6) Internal Heat Recovery System
The PSD compressor unit has a built-in heat recovery system which provides supplemental domestic
water heating at a significant operating cost savings. The heat recovery system operates throughout
the year to provide free hot water when operating in cooling mode and reduced cost hot water when
operating in the heating mode. The heat recovery system supplements hot water production, but
does 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 in
Figure 12.
Figure 12. Standard Storage Water Heater
– Service Connections
Alternatively, the heat recovery system may be plumbed to the ETI Series GSTE storage water
heater as shown in Figures 13a and 13b . The Series GSTE storage water heaters are preferred
because the heat recovery system ports are designed to provide more efficient heat exchange within
the storage water heater.