Dunkirk Q95M-200 Installation, Operation & Maintanance Manual page 40

piping diagram 7 : primary/secondary piping with zone valves and domestic hot water (with circulator)
CH CIRCULATOR
ZONE 1 (PRIORITY ZONE)
WATER INLET
NOTE: RECOMMENDED FOR ANTIFREEZE APPLICATIONS
Xvi - pipinG and wirinG appendiX
*USE FULL PORT ZONE
VALVE.
ZONE 4
ZONE 3
ZONE 2
PUMP
DHW
CIRCULATOR
PUMP
EXPANSION
TANK
FLOW CONTROL
VALVE
PRESSURE
CIRCULATOR
REDUCER VALVE
PUMP
SHUT-OFF
CHECK VALVE
VALVE
12" MAX APART
(TO PREVENT FORCED
FLOW IN SECONDARY)
PRIMARY
PUMP
ALTERNATE
PRIMARY PUMP
BOILER
LOCATION
*SEE NOTE
BALL VALVE
ZONE VALVE
40
AIR SEPARATOR
HOSE BIB