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5
Hydronic piping
Figure 5-2 Single Boiler - Recommended - Primary / Secondary Piping with a Hot Water Generator
FROM SYSTEM
HOT WATER
GENERATOR
WATER
GENERATOR
CIRCULATOR
BOILER PUMP
System flow should always remain higher than the required flow for the boiler(s) when the boiler(s) is in
NOTICE
operation to prevent short cycling and high limit issues.
Please note that these illustrations are meant to show system piping concept only, the installer is responsible
NOTICE
for all equipment. The installer must follow all manufacturer's instructions for each system component. The
installer is responsible for compliance with local codes.
30
SYSTEM RETURN
SENSOR
RELIEF
VALVE
BOILER
DRAIN
Y-STRAINER
(RECOMMENDED)
FLOW CHECK
VALVE (TYPICAL)
Installation & Operation Manual
12"
MAX
BALL VALVE
(TYPICAL)
AIR SEPERATOR
PRESSURE
REDUCING VALVE
PRESSURE
EXPANSION
GAUGE
TANK
DRAIN PORT
(TYPICAL)
SYSTEM SUPPLY
SENSOR
SYSTEM
CIRCULATOR
TO SYSTEM
MAKE UP
BACK FLOW
WATER
PREVENTER
IMG01035
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