Pennco 3KW0.60 - Manual (Page 13)

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> CIRCULATOR ON SUPPLY PIPING PUMPS
AWAY FROM EXPANSION TANK.
NOTE: CIRCULATOR CAN ALSO BE INSTALLED
ON RETURN PIPING.
> PIPING ARRANGED FOR “POWER PURGING”
AIR OUT OF SYSTEM PIPING, REFER TO THIS
MANUAL’S SECTION ON “FILLING THE SYSTEM
WITH WATER” OPTION #1
SYSTEM PIPING
Figure 9 - System Piping Arrangement Zoning With Circulators