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3
Piping
Figure 3-2 Piping Diagram Zoned with Valves
PRESSURE
REDUCING VALVE
BACKFLOW
PREVENTER
MAKE UP WATER
AIR SEPARATOR
EXPANSION
TANK
DRAIN POINT
(TYPICAL)
BALL VALVE
(TYPICAL)
UNION
(TYPICAL)
TEMPERATURE /
PRESSURE
GAUGE
PRESSURE
RELIEF VALVE
8
PRESSURE
GAUGE
SYSTEM SUPPLY
SENSOR
(WHEN USED)
SYSTEM
CIRCULATOR
NOT TO EXCEED 4 PIPE DIA.
OR A MAXIMUM OF 12" APART
BOILER
CIRCULATOR
RELIEF VALVE
SOLUTION
BOILER
ZONE #1
ZONE #2 ZONE #3
HOT
WATER
OUT
COLD
WATER
IN
SQUIRE
Installation & Operation Manual
ZONE #4
ZONE VALVES
(TYPICAL)
DIFFERENTIAL
PRESSURE BYPASS
VALVE (IF USED)
ANTI-SCALD
MIXING VALVE
RECIRCULATION
LOOP
AQUASTAT
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