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3
Boiler Side Piping (SDT models)
Figure 3-1 Piping Diagram Zoned with Circulators
REDUCING VALVE
BACKFLOW
PREVENTER
MAKE UP
WATER
AIR SEPARATOR
EXPANSION
DRAIN POINT
(TYPICAL)
BALL VALVE
(TYPICAL)
UNION
(TYPICAL)
TEMPERATURE /
PRESSURE
GAUGE
Please note that these illustrations are meant to show system piping concept only, the installer is responsible
NOTICE
for all equipment and detailing required by local codes.
Please note that the installer is responsible for ensuring DHW prioritization when piped as a zone.
NOTICE
8
PRESSURE
PRESSURE
GAUGE
SYSTEM SUPPLY
SENSOR
(WHEN USED)
TANK
NOT TO EXCEED 4 PIPE DIA.
OR A MAXIMUM OF 12" APART
Y-STRAINER
FLOW CHECK
VALVE
BOILER
CIRCULATOR
BOILER BACKUP
HEAT EXCHANGER
( SDT MODELS ONLY )
DRAIN
PRESSURE
SOLUTION
RELIEF VALVE
BOILER
GAS SUPPLY
SDT/SET Installation & Operation Manual
ZONE #1
ZONE
#2
SQUIRE
SOLAR
HEAT EXCHANGER
ZONE
ZONE
#4
#3
ZONE CIRCULATORS
(TYPICAL)
HOT
WATER
OUT
ANTI-SCALD
MIXING VALVE
COLD
WATER
IN
TEMPERATURE/
PRESSURE
RELIEF VALVE
BOILER
TANK SENSOR /
AQUASTAT
SOLAR SENSOR
CHECK VALVE
TEMPERATURE/
PRESSURE GAUGE
(TYPICAL)
RECIRCULATION
CHECK VALVE
DRAIN
( FIELD SUPPLY )
AUXILIARY CATCH PAN
FROM
SOLAR
TO
SOLAR
PUMP
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