Dunkirk Q95M-200 Installation, Operation & Maintanance Manual page 32

piping diagram 3 : multizone system with zone valves and domestic hot water priority (with circulator)
WATER INLET
BOILER
FLOW CONTROL
VALVE
NOTE: NOT RECOMMENDED FOR ANTIFREEZE APPLICATIONS
Xvi - pipinG and wirinG appendiX
*USE FULL PORT ZONE
VALVE.
CH
CIRCULATOR
EXPANSION
TANK
CIRCULATOR
SHUT-OFF
VALVE
DHW
CIRCULATOR
PRESSURE
BALL VALVE
REDUCER VALVE
ZONE VALVE
CHECK VALVE
32
ZONE 4
ZONE 3
ZONE 2
ZONE 1 (PRIORITY ZONE)
AIR SEPARATOR
HOSE BIB