12
CONNECTING SUPPLY AND RETURN PIPING
8.
Typical indirect water heater installation using
circulators is shown in
Figure #9
.
9.
Typical indirect water heater installation using zone
valves is shown in
Figure #10
.
Figure #9 - Indirect Water Heater Piping with Circulator
Figure #10 - Indirect Water Heater Piping with Zone Valve