Installation & Operation Manual
6 Hydronic piping (continued)
Figure 6-8 Single Boiler Zoned with Valves
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PRESSURE | PRESSURE |
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REDUCING VALVE | GAUGE | ZONE #2 | ZONE #3 | ZONE #4 |
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BACKFLOW |
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PREVENTER |
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MAKE UP WATER |
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SYSTEM SUPPLY | SYSTEM |
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| SENSOR |
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| CIRCULATOR |
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AIR SEPARATOR |
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| EXPANSION |
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| TANK |
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ZONE VALVES (TYPICAL)
DIFFERENTIAL PRESSURE BYPASS VALVE (IF USED)
BALL VALVE (TYPICAL)
DRAIN POINT
(TYPICAL)
MAY SUBSTITUTE LOW LOSS HEADER |
(RECOMMENDED)
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| DOMESTIC | HOT |
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| WATER |
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FLOW CHECK | HOT WATER | OUT |
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| MIXING VALVE | |||
| VALVE | CIRCULATOR |
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COLD
WATER
IN
PRESSURE
RELIEF VALVE
BOILER
CIRCULATOR
BOILER 
UNION |
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(TYPICAL) | DRAIN |
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TEMPERATURE / |
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PRESSURE |
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GAUGE |
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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.
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