UTICA BOILERS UB95M-200 Installation, Operation & Maintenance Manual page 43

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