SDT/SET Installation & Operation Manual
3Boiler Side Piping (SDT models)
Figure
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PRESSURE | PRESSURE | |
REDUCING VALVE | GAUGE | |
BACKFLOW |
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PREVENTER |
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MAKE UP |
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WATER | SYSTEM SUPPLY | |
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AIR SEPARATOR |
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ZONE ZONE ZONE
#2 #3 #4
ZONE CIRCULATORS (TYPICAL)
EXPANSION 
TANK
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| NOT TO EXCEED 4 PIPE DIA. |
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DRAIN POINT |
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| OR A MAXIMUM OF 12" APART | ||
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(TYPICAL) |
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HOT
WATER
OUT
MIXING VALVE
BALL VALVE
(TYPICAL)
FLOW CHECK 
BOILER VALVE
CIRCULATOR
BOILER BACKUP
HEAT EXCHANGER 
( SDT MODELS ONLY )
COLD
WATER
IN
TEMPERATURE/
PRESSURE
RELIEF VALVE
BOILER
TANK SENSOR /
AQUASTAT
SOLAR SENSOR
CHECK VALVE
TEMPERATURE/ PRESSURE GAUGE (TYPICAL)
UNION |
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(TYPICAL) |
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TEMPERATURE / |
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PRESSURE |
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GAUGE |
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DRAIN |
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PRESSURE | SOLUTION |
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RELIEF VALVE | SQUIRE | |
| BOILER | |
GAS SUPPLY | SOLAR |
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HEAT EXCHANGER |
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FROM
SOLAR
TO
SOLAR
RECIRCULATION
PUMP
CHECK VALVE
DRAIN
( FIELD SUPPLY )
AUXILIARY CATCH PAN
NOTICE
NOTICE
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.
Please note that the installer is responsible for ensuring DHW prioritization when piped as a zone.
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