SYSTEM PIPING ARRANGEMENT
ZONING WITH CIRCULATORS
CIRCULATOR ON SUPPLY PIPING PUMPS
AWAY FROM EXPANSION TANK
PIPING ARRANGED FOR "POWER PURGING"
AIR OUT OF SYSTEM PIPING, REFER TO THIS
MANI_AL'S SECTION ON "FILLING THE
SYSTEM WITH WATER" OPTION #1
RETURNFROMSYSTEM
[ _ DRAINVALVE
FOR POWER
PURGING
MAIN SHUTOFF
VALVE
AUTOMATIC
FiLLVALVE
SHUTOFF VALVE
BOILERSERVICE
_QUASTA
BOILER
DRAIN
VALVE
R
I0
7
FILLTROLWITH
AIR PURGER
BALANCINGVALVE
FLOWCHECK VALVE
_ ZONE CIRCULATOR
_I ISOLATIONVALVE
SUPPLY TO
SYSTEM
SUPPLYTO
SYSTEM
FILLLINEWITH SHUTOFF
VALVE