Installation & Operation Manual
39
6
System piping
(continued)
NOTICE
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.
The piping will not support the weight of the water heater circulator pump. Do not attempt to support
the weight of the water heater circulator pump with the piping or its accessories. Refer to the pump
manufacturer’s installation instructions. Failure to comply could result in severe personal injury, death, or
substantial property damage.
CAUTION
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]
Figure 6-4 Single Heater - Single Tank