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18
GAS-FIRED HEATER Installation Manual
circulator
(w/ isolation flanges)
gate valve
globe valve
ball valve
swing-check valve
flow-check valve
spring-loaded check valve
hose bib / heater drain
TRV (straight)
TRV angle
circuit setter
manual 3-way valve
zone valve
air separator
backflow preventer
diaphragm-type
expansion tank
pressure reducing valve
diff. pressure bypass
anti-scald mixing valve
temperature /pressure
gauge
pressure relief valve
float-type
air vent
heat exchanger
union
4-way motorized
mixing valve
3-way motorized
mixing valve
Munchkin Contender Heater
radiant manifold
with valve actuators
Super Stor Ultra
Indirect DHW Tank
Piping symbol legend
radiant manifold
purging valve
circulator
(w/ integral check valve)
aquastat
DHW temperature sensor
Outdoor temperature
sensor
T/P
M. CONTENDER PIPING DETAILS