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Chapter 8Chapter 8Boiler Operation ProceduresBoiler Operation Procedures

Taking Over a Shift • First-Time Boiler Start-up Procedures • Routine Boiler

Start-up Procedures • Boiler Maintenance Procedures • Boiler Shutdown

Procedures • Boiler Inspection • Hydrostatic Test • Boiler Troubleshooting

Taking Over a Shift • First-Time Boiler Start-up Procedures • Routine Boiler

Start-up Procedures • Boiler Maintenance Procedures • Boiler Shutdown

Procedures • Boiler Inspection • Hydrostatic Test • Boiler Troubleshooting

Chapter 8 — Boiler Operation ProceduresChapter 8 — Boiler Operation Procedures

Boiler operation information is communicated to the boiler operator starting the shift to specify any special procedures required.

Boiler operation information is communicated to the boiler operator starting the shift to specify any special procedures required.


When blowing down the gauge glass, water should enter the gauge glass quickly when the gauge glass blowdown valve is closed.

When blowing down the gauge glass, water should enter the gauge glass quickly when the gauge glass blowdown valve is closed.


During a bottom blowdown, the boiler should be under light load and the water level should be at the NOWL.

During a bottom blowdown, the boiler should be under light load and the water level should be at the NOWL.


The blowdown valve is opened to evacuate the low water fuel cutoff chamber with the burner firing during blowdown.

The blowdown valve is opened to evacuate the low water fuel cutoff chamber with the burner firing during blowdown.


When testing the flame scanner, the flame scanner sensor is covered to simulate a flame failure.

When testing the flame scanner, the flame scanner sensor is covered to simulate a flame failure.


Before starting the boiler for the first time, the boiler should have a minimum water level of approximately 2″ above the bottom of the gauge glass.

Before starting the boiler for the first time, the boiler should have a minimum water level of approximately 2″ above the bottom of the gauge glass.


The burner is started in low fire according to procedures specified by the manufacturer.

The burner is started in low fire according to procedures specified by the manufacturer.


The boiler vent is closed when pressure in the boiler reaches 10 psi to 15 psi.

The boiler vent is closed when pressure in the boiler reaches 10 psi to 15 psi.


The main steam stop valve is opened slowly to allow the pressure to equalize when the boiler is a few pounds below the header pressure.

The main steam stop valve is opened slowly to allow the pressure to equalize when the boiler is a few pounds below the header pressure.


A broken or discolored gauge glass is replaced using standard procedures for maximum safety.

A broken or discolored gauge glass is replaced using standard procedures for maximum safety.


The low water fuel cutoff controls must be installed vertically for proper performance.

The low water fuel cutoff controls must be installed vertically for proper performance.


The burner is maintained and tested to ensure proper operation and maximum efficiency.The burner is maintained and tested to ensure proper operation and maximum efficiency.


Feedwater pumps should be checked periodically to ensure proper bearing temperatures and checked for any unusual vibration.

Feedwater pumps should be checked periodically to ensure proper bearing temperatures and checked for any unusual vibration.


Safety valves are routinely tested to ensure proper operation and must be serviced by an authorized manufacturer representative.

Safety valves are routinely tested to ensure proper operation and must be serviced by an authorized manufacturer representative.


Steam traps are checked for proper operation when determining the cause of a steambound feedwater pump.

Steam traps are checked for proper operation when determining the cause of a steambound feedwater pump.


When inspecting a boiler, inspect tube sheets, tubes, and other internal parts for corrosion, overheating, and/or other damage.

When inspecting a boiler, inspect tube sheets, tubes, and other internal parts for corrosion, overheating, and/or other damage.


Handhole covers are removed to provide access to boiler parts during a boiler inspection.

Handhole covers are removed to provide access to boiler parts during a boiler inspection.


All internal surfaces are exposed and cleaned prior to the boiler inspection.

All internal surfaces are exposed and cleaned prior to the boiler inspection.


Troubleshooting steps from the manufacturer provide a guide to correcting a boiler operation problem.

Troubleshooting steps from the manufacturer provide a guide to correcting a boiler operation problem.


The boiler room log lists boiler operation data that can be used to increase boiler efficiency and identify a potential malfunction.

The boiler room log lists boiler operation data that can be used to increase boiler efficiency and identify a potential malfunction.