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Installation & Operation Manual
33
6 Hydronic piping (continued)
BOILER
INDIRECT
DHW TANK
DOMESTIC
HOT WATER
CIRCULATOR
ANTI-SCALD
MIXING VALVE
COLD
WATER
IN
TEMPERATURE /
PRESSURE
GAUGE
AIR SEPARATOR
ZONE #1
ZONE #2
ZONE #3
ZONE #4
BALL VALVE
(TYPICAL)
UNION
(TYPICAL)
PRESSURE
RELIEF VALVE
DRAIN POINT
(TYPICAL)
MAKE UP WATER
HOT
WATER
OUT
BOILER
CIRCULATOR
BACKFLOW
PREVENTER
PRESSURE
REDUCING VALVE
PRESSURE
GAUGE
EXPANSION
TANK
ZONE #1
ZONE #2
ZONE #3
ZONE #4
ZONE VALVES
(TYPICAL)
FLOW CHECK
VALVE
DIFFERENTIAL
PRESSURE BYPASS
VALVE (IF USED)
SYSTEM
CIRCULATOR
SYSTEM SUPPLY
SENSOR
DRAIN
NOT TO EXCEED 4 PIPE DIA. OR A MAX. OF 12” APART
Figure 6-5 Single Boiler Zoned with Valves