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Installation & Operation Manual
39
6 System piping (continued)
Figure 6-4 Single Heater - Single Tank (2 Temperature)
FLOW CHECK
VALVE (TYPICAL)
BALL VALVE
(TYPICAL)
EXPANSION
TANK
THERMOMETER
(TYPICAL)
COLD
WATER
SUPPLY
140° HOT
WATER
SUPPLY
HIGH TEMPERATURE
BUILDING RETURN
DRAIN
TEMPERATURE
& PRESSURE
RELIEF VALVE
(TYPICAL)
FLOW
SWITCH
WATER
HEATER
CIRCULATOR
STORAGE
TANK
WATER
HEATER
UNION
(TYPICAL)
LOW
TEMPERATURE
BUILDING
RETURN
180° HOT
WATER
SUPPLY
MIXING
VALVE
Y-STRAINER
(RECOMMENDED)
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.
ƽ CAUTION