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
RETURNFROMSYSTEM
IT
I RAIN VALVE
FOR POWER
PURGING
MAIN SHUTOFF
VALVE
SUPPLYTO
SYSTEM
CIRCULATOR
PUMP
SHUTOFFVALVE
BOILERSERVICE
FILL VALVE
FILLTROLWITH
AIR PURGER
_._"-_ SUPPLYTO
SYSTEM
ISOLATIONVALVES
LiNE WITH SHUTOFFVALVE
BOILER
DRAIN
VALVE