Dunkirk Q95M-200 Modulating Condensing Boiler - Manual (Page 43)

BOILER
ALTERNATE
CIRCULATOR
LOCATION
TO SYSTEM
FROM SYSTEM
CIRCULATOR
WATER INLET
SHUT-OFF
VALVE
PRESSURE
REDUCER VALVE
CHECK VALVE
BALL VALVE AIR SEPARATOR
HOSE BIB
FLOW CONTROL
VALVE
4-WAY MIXING
VALVE
EXPANSION
TANK
12” MAX 12” MAX
CIRCULATOR
SHUT OFF VALVE
PRESSURE
REDUCER VALVE
CHECK VALVE
BALL VALVE
AIR SEPARATOR
3 WAY MIXING VALVE
TO SYSTEM FROM SYSTEM
ALTERNATE
CIRCULATOR
LOCATION
ALTERNATE
CIRCULATOR
LOCATION
BOILER
1
BOILER
2
EXPANSION TANK
WATER INLET
Piping Diagram 10 : Bypass Piping (4-Way Valve Option With Circulator On Supply)
Piping Diagram 11 : Multiple Boiler Piping
APPENDIX A - BOILER PIPING AND WIRING
43