Dunkirk Q95M-200 Installation, Operation & Maintanance Manual page 30

piping diagram 2 : multizone piping with zone valves and domestic hot water priority (with zone valve)
WATER INLET
BOILER
EXPANSION
CIRCULATOR
SHUT-OFF
VALVE
NOTE: NOT RECOMMENDED FOR ANTIFREEZE APPLICATIONS
Xvi - pipinG and wirinG appendiX
CH & DHW
SYSTEM
CIRCULATOR
VALVE. FOR OPTIMUM TANK
PERFORMANCE, CONSIDER
TANK
USING ZONE CIRCULATOR
PRESSURE
REDUCER VALVE
CHECK VALVE
*USE FULL PORT ZONE
(SEE FIGURE 5)
ZONE VALVE
30
ZONE 4
ZONE 3
ZONE 2
ZONE 1 (PRIORITY ZONE)
AIR SEPARATOR
HOSE BIB
FLOW CONTROL
VALVE