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Zoned with Valves
This drawing is meant to show system piping concept only.
Installer is responsible for all equipment & detailing required by local codes.
Refer to pages 22-25 for electrical wiring instructions.
PRESSURE
REDUCING VALVE
BACKFLOW
PREVENTER
MAKE UP WATER
AIR SEPARATOR
BALL VALVE
(TYPICAL)
DRAIN POINT
(TYPICAL)
20
PRESSURE
GAUGE
SYSTEM
PUMP
EXPANSION
TANK
NOT TO EXCEED 12" APART
PRIORITY 2
PUMP
SAFETY
RELIEF VALVE
(ACCESSORIES)
UNION
(TYPICAL)
DRAIN
TEMPERATURE /
PRESSURE
GAUGE
(ACCESSORIES)
ZONE 1
ZONE 2
ZONE 3
ANTI-SCALD
MIXING VALVE
PRIORITY 1
PUMP
BOILER
ZONE 4
ZONE VALVES
(TYPICAL)
DIFFERENTIAL
PRESSURE BYPASS
VALVE (IF USED)
HOT
WATER
OUT
COLD
WATER
IN
INDIRECT
DHW TANK
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