Thermal Solutions AMP 400 Installation, Operation And Maintenance Manual page 43

X. Water Piping Diagrams (continued)
Figure 17: Multiple Boiler, Primary/Secondary with Common Header Piping
To System
Make Up Water
Pressure Reducing Valve
A. No more than 12 inches or 4 pipe diameters
B. At least 18" of straight pipe for conventional air scoop
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CAUTION CAUTION
AMP 400-1000L I&O Manual
System Pump
Expansion Tank
Check Valve
1. These are suggested piping configurations. It is the installer's responsibility to
conform to local codes and ordinances for additional requirements.
2. Pressure relief valve rating shall not exceed pressure rating of any component
in the system.
3. Some piping components cannot be supported by the piping. Refer to the man-
ufacturers' installation instructions.
4. It is the installer's responsibility to select piping configurations that provide the
proper flow rates and performance.
5. Erosion could occur if common piping is undersized.
Air Vent
B
Purge Valve
A
From System
Y-Strainer
Boiler Pump
43