BOILER
WATER INLET
ALTERNATE
CIRCULATOR
LOCATION
TO SYSTEM
FROM SYSTEM
CIRCULATOR
SHUT-OFF
VALVE
PRESSURE
REDUCER VALVE
CHECK VALVE
BALL VALVE
3 WAY MIXING
VALVE
AIR SEPARATOR
HOSE BIB
EXPANSION
TANK
PiPiNg DiAgrAMS
29
Diagram 9 -Bypass piping (automatic mixing valve)