Boiler Piping Details - Heat Transfer MODCON VWH 300 LP Installation & Maintenance

PART 5: BOILER PIPING
H. BOILER PIPING DETAILS
Piping Symbol Legend
circulator (open loop)
(w/ isolation flanges)
flow switch
gate valve
globe valve
ball valve
swing-check valve
spring-loaded check valve
hose bib / boiler drain
diaphragm-type
expansion tank
(for potable water)
Mod Con Boiler
21
GAS-FIRED HOT WATER SUPPLY BOILER
(CONTINUED)
T/P
anti-scald rated
mixing valve
pressure gauge
pressure relief valve
(or P&T relief valve)
temperature /
pressure gauge
union
vacuum breaker
Superstor Ultra
Storage Tank
Boiler Manual