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Installation & Service Manual
7 Domestic water heaters
Figure 7-1_Single water heater_single tank
FLOW CHECK
VALVE (TYPICAL)
EXPANSION
TANK
THERMOMETER
COLD WATER
SUPPLY
HOT WATER
SUPPLY
BUILDING
RETURN
DRAIN
TEMPERATURE
& PRESSURE
RELIEF VALVE
(TYPICAL)
FLOW
SWITCH
WATER HEATER
CIRCULATOR
STORAGE
TANK
WATER
HEATER
UNION
(TYPICAL)
BALL VALVE
(TYPICAL)
MIXING VALVE
Y-STRAINER
[RECOMMENDED]
Please note that these illustrations are meant to show system piping concept only, the installer is responsible
for all equipment and detailing required by local codes.
NOTICE