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SDT/SET Installation & Operation Manual
10
KNIGHT
BOILER
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
FROM
SYSTEM
NOT TO EXCEED4 PIPE DIA. OR
A MAXIMUM OF 12" APART
BOILER
CIRCULATOR
SYSTEM
CIRCULATOR
TO
SYSTEM
SYSTEM SUPPLY
SENSOR
DRAIN
DRAIN
(FIELD SUPPLY)
RECIRCULATION
PUMP
BOILER
TANK SENSOR /
AQUASTAT
Y-STRAINER
(RECOMMENDED)
HOT
WATER
OUT
CHECK VALVE
SQUIRE
SOLAR SENSOR
FROM SOLAR
TO SOLAR
TEMPERATURE/
PRESSURE RELIEF VALVE
CHECK VALVE
SOLAR
HEAT EXCHANGER
TEMPERATURE/
PRESSURE GAUGE
(TYPICAL)
BOILER BACKUP
HEAT EXCHANGER
(SDT MODELS ONLY)
Figure 3-3 Knight Boiler Primary / Secondary Piping
Please note that these illustrations are meant to show system piping concept only, the installer is responsible
for all equipment and detailing required by local codes.
NOTICE
3 Boiler Side Piping (SDT models)