Near Boiler Piping Diagrams - Prestige Solo 175 Installation And Maintenance Manual

Boiler Piping
System
Supply
1
Cold
Water Fill
6
4
Fig. 7: Near Boiler Piping - Diaphragm Expansion Tank
System
Supply
1
Fig. 8 : Near Boiler Piping - Closed Type Expansion Tank
1. System circulator
2. Automatic air vent
3. Air separator
4. Automatic fill valve
5. Diaphragm expansion tank
6. Isolation valve
2
6
3
5
9
8
Cold
Water Fill
4
6
Minimum
6
3/4" Piping
3
12"
Max.
10
11
12
Boiler
Boiler
Supply
Return
12"
Max.
6
10
11
12
Boiler
Boiler
Supply Return
7. Drain/purge valve
8. Tank fitting
9. Close type expansion tank
10. Primary/secondary connection
11. Boiler circulator
12. Flow/check valve
19
System
Return
6
System
Return
7
Note: Pitch horizontal pip-
ing upwards (1" of pitch
per 5 ft of piping) towards
expansion tank.
7