ZONE 3
ZONE 2
ZONE 1 (PRIORITY ZONE)
BOILER
WATER INLET
ZONE 4
*USE FULL PORT ZONE
VALVE.
DHW
CIRCULATOR
CH
CIRCULATOR
CIRCULATOR
FLOW CONTROL
VALVE
SHUT-OFF
VALVE
PRESSURE
REDUCER VALVE
CHECK VALVE
BALL VALVE
AIR SEPARATOR
ZONE VALVE
HOSE BIB
EXPANSION
TANK
PiPiNg DiAgrAMS
24
Diagram 4 - Multizone System With Zone Valves And Domestic Hot Water Priority (With Circulator)