Dunkirk Q95M-200 Installation, Operation & Maintanance Manual page 38

piping diagram 6 : primary/secondary multizone system piping with zone valves and domestic hot water (with zone valve)
SYSTEM
CIRCULATOR
WATER INLET
FLOW CONTROL
VALVE
NOTE: RECOMMENDED FOR ANTIFREEZE APPLICATIONS
Xvi - pipinG and wirinG appendiX
ZONE 1 (PRIORITY ZONE)
*USE FULL PORT ZONE
VALVE. FOR OPTIMUM TANK
PERFORMANCE, CONSIDER
USING ZONE CIRCULATOR
(SEE FIGURE 13)
EXPANSION
TANK
PRESSURE
CIRCULATOR
REDUCER VALVE
SHUT-OFF
CHECK VALVE
VALVE
ZONE 4
ZONE 3
ZONE 2
12" MAX APART
(TO PREVENT FORCED
FLOW IN SECONDARY)
BOILER
CIRCULATOR
ALTERNATE BOILER
CIRCULATOR
BOILER
LOCATION
BALL VALVE
ZONE VALVE
38
*SEE NOTE
AIR SEPARATOR
HOSE BIB