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Installation & Operation Manual
35
BOILER
INDIRECT
DHW TANK
DOMESTIC
HOT WATER
CIRCULATOR
BACKFLOW
PREVENTER
PRESSURE
REDUCING VALVE
PRESSURE
GAUGE
ANTI-SCALD
MIXING VALVE
COLD
WATER
IN
TEMPERATURE /
PRESSURE
GAUGE
AIR
SEPARATOR
EXPANSION
TANK
BALL VALVE
(TYPICAL)
UNION
(TYPICAL)
PRESSURE
RELIEF VALVE
DRAIN POINT
(TYPICAL)
MAKE UP WATER
FROM
SYSTEM
BOILER
CIRCULATOR
SYSTEM
CIRCULATOR
TO
SYSTEM
SYSTEM SUPPLY
SENSOR
DRAIN
NOT TO EXCEED 4 PIPE DIA. OR A MAX. OF 12” APART
Figure 6-7 Single Boiler - Non-Zoned Primary/Secondary Piping
6 Hydronic piping (continued)