Utica Boilers MGB Series II/MGC Series Instruccion De Instalación
9
BOILER
WATER INLET
ALTERNATE
CIRCULATOR
LOCATION
TO SYSTEM
FROM SYSTEM
CIRCULATOR
SHUT-OFF
VALVE
PRESSURE
REDUCER VALVE
CHECK VALVE
BALL VALVE
3 WAY MIXING
VALVE
AIR SEPARATOR
HOSE BIB
EXPANSION
TANK
8.
Installation using circulators and zone valves are
shown in Figures 6 through 9. For further piping
information refer to AHRI Installation and Piping
Guide.
WARNING
Burn and scald hazard. Safety relief valve could
discharge steam or hot water during operation.
Install discharge piping per these instructions.
!
9.
Install discharge piping from safety relief valve. See
Warning, Page 7.
4 - CONNECTING SUPPLY AND RETURN PIPING
BOILER
ALTERNATE
CIRCULATOR
LOCATION
TO SYSTEM
FROM SYSTEM
V2
V1
CIRCULATOR
SHUT-OFF
VALVE
PRESSURE
REDUCER VALVE
CHECK VALVE
BALL VALVE
AIR SEPARATOR
ZONE VALVE
EXPANSION
TANK
WATER INLET
SYSTEM
CIRCULATOR
Figure 4 - Bypass Piping With Mixing Valve
Figure 5 - Bypass Piping - Fixed Low Temp Only With Zone Valve