Dunkirk Q95M-200 Installation, Operation & Maintanance Manual page 43

piping diagram 10 : bypass piping (4-way valve option with circulator on supply)
TO SYSTEM
WATER INLET
CIRCULATOR
SHUT-OFF
VALVE
piping diagram 11 : multiple boiler piping
TO SYSTEM
WATER INLET
Xvi - pipinG and wirinG appendiX
EXPANSION
TANK
PRESSURE
REDUCER VALVE
CHECK VALVE
EXPANSION TANK
PRESSURE
CIRCULATOR
REDUCER VALVE
CHECK VALVE
SHUT OFF VALVE
BOILER
ALTERNATE
CIRCULATOR
LOCATION
BALL VALVE
4-WAY MIXING
VALVE
12" MAX
ALTERNATE
CIRCULATOR
LOCATION
BOILER
1
BALL VALVE
3 WAY MIXING VALVE
43
FROM SYSTEM
AIR SEPARATOR
FLOW CONTROL
HOSE BIB
VALVE
FROM SYSTEM
12" MAX
ALTERNATE
CIRCULATOR
LOCATION
BOILER
2
AIR SEPARATOR