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Installation & Operation Manual
31
ZONE #1
ZONE #2
ZONE #3
ZONE #4
ZONE CIRCULATORS
(TYPICAL)
FLOW CHECK
VALVE
(TYPICAL)
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
HOT
WATER
OUT
BOILER
CIRCULATOR
SYSTEM SUPPLY
SENSOR
DRAIN
NOT TO EXCEED 4 PIPE DIA. OR A MAX. OF 12” APART
Figure 6-3 Single Boiler Zoned with Circulators
6 Hydronic piping (continued)