Steam Boiler Low-Water Cutoff Functional Test

Inspection template for verifying primary and auxiliary low-water cutoff devices on a steam boiler, including burner shutdown under simulated low-water conditions and restoration/reset behavior.

Inspection Details and Test Authorization

• Boiler identification recorded
  Record boiler number, location, manufacturer, model, and serial number.
• Inspection date and time recorded
  Document when the functional test was performed.
• Inspector and responsible operator identified
  Record the names and roles of the person performing the test and the boiler operator or responsible facility representative.
• Test authorized and boiler taken out of normal service as required
  Confirm the test was authorized and the boiler was placed in the proper test condition per site procedure.

Safety Preconditions and Test Readiness

• Qualified personnel present for the test
  Confirm the test is being performed by a competent person or qualified technician familiar with boiler controls and safety devices.
• Burner and boiler controls in safe test condition
  Verify the boiler is in a controlled condition suitable for simulating low-water cutoff operation without creating an unsafe condition.
• Lockout-tagout applied where required by procedure
  Confirm lockout-tagout or equivalent energy control measures are applied if required by the site procedure for the test setup.
• Test instruments and tools available and suitable
  Verify any tools, gauges, or test equipment needed to simulate low water conditions are available, serviceable, and appropriate for the boiler type.

Visual Condition of Low-Water Cutoff Devices

• Primary low-water cutoff device accessible and identifiable
  Confirm the primary low-water cutoff device is accessible, labeled, and identifiable on the boiler.
• Auxiliary low-water cutoff device accessible and identifiable
  Confirm the auxiliary low-water cutoff device is accessible, labeled, and identifiable on the boiler.
• No visible leaks, corrosion, damage, or tampering
  Inspect both cutoff devices and associated piping, wiring, and fittings for visible leaks, corrosion, damage, blockage, or evidence of tampering.
• Water level indication normal before test start
  Verify the boiler water level is within the normal operating range before initiating the functional test.

Functional Test of Primary Low-Water Cutoff

• Primary low-water cutoff initiates burner shutdown at simulated low water
  Simulate low-water conditions and verify the primary low-water cutoff causes the burner to shut off as intended.
• Burner shutdown occurs promptly and completely
  Confirm the burner stops firing without continued flame, delayed response, or unsafe cycling after the primary cutoff actuates.
• Primary cutoff reset behavior verified
  Verify the primary low-water cutoff resets and returns to normal operation only after the water level is restored and the device is reset per manufacturer or site procedure.
• Test result for primary low-water cutoff documented
  Record the outcome of the primary cutoff functional test.

Functional Test of Auxiliary Low-Water Cutoff

• Auxiliary low-water cutoff initiates burner shutdown at simulated low water
  Simulate low-water conditions and verify the auxiliary low-water cutoff also causes burner shutdown as intended.
• Auxiliary cutoff requires manual reset where applicable
  Verify the auxiliary low-water cutoff remains in a safe state and requires manual intervention or reset as designed after actuation.
• Auxiliary cutoff test result documented
  Record the outcome of the auxiliary cutoff functional test.

Exceptions, Corrective Actions, and Approval

• Deficiencies or non-conformances documented
  Describe any failed checks, abnormal response, delayed shutdown, reset issues, leaks, or other deficiencies observed during the test.
• Corrective action assigned and tracked
  Record the corrective action, responsible party, and target completion date for any deficiency found.
• Inspector signature
  Inspector attestation that the test was performed and results were recorded accurately.