Initial Start-up and Service
10
Steps (continued)
1. Fill heating system with water (continued)
Initial start-up
5. Check system pressure and open
ball valve
6. Shut off the boiler from the heating
system on heating water side (close
shutoff valve
).
7. Connect drain hose to drain valve
or .
8. Open drain valve
or and vent
the boiler with system pressure
until noise due to the presence of
air is eliminated.
9. Close drain valve
or and
open ball valve
.
10. Check system pressure.
11. Ensure proper/adequate fuel supply
exists. Open gas shutoff valve.
5285 961 v1.3
Water flow
Air vent
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