SYSTEM PIPING ARRANGEMENT
ZONING WITH ZONE VALVES
>CIRCULATOR ON SUPPLY PIPING PUMPS
AWAY FROM EXPANSION TANK
>PIPING ARRANGED FOR "POWER P[VRGING" AIR OUT OF SYSTEM PIPING, REFER TO THIS
MANUAL'S SECTION ON "FILLING THE SYSTEM _,VITH WATER" OPTION #1
BALANCINGVALVE
ZONE VALVE
RETURNFROM SYSTEM
IT
SUPPLY TO SYSTEM
I RAIN VALVE MAIN SHUTOFF
FOR POWER
VALVE
PURGINGCIRCULATOR
PUMP
FILL VALVE
SHUTOFFVALVE
BOILERSERVICEFILLTROLWITH
AIR PURGER
ISOLATIONVALVES
LiNE WITH SHUTOFFVALVE
BOILER DRAIN VALVE