| Component | Visual and Functional inspection |
| Water level indicators | Test and maintenance work(if required) |
| Water level controller | Observation and checking |
| Water level limiters | Test after disturbances |
| Pressure indicators | Observation for checking |
| Pressure regulators | Observation for checking |
| Pressure limiters | Test after disturbance |
| Temperature indicators | Observation for checking |
| Temperature regulators | Observation for checking |
| Temperature limiters | Test after disturbances |
| Steam boiler blow-down valve | Blow down once briefly |
| Boiler valves and components | Round of inspection |
| Feeding and circulating pump | Inspection of state |
| Feed water and boiler water in steam generators | Analysis measuring, if deviation from specified boundary valves, carry out corrective measures |
| Burner control, actuators for air and fuel | Observation for checking |
| Combustion air fan, ignition and cooling fan | Observation to check tightness eventually clean filter |
| Air pressure/ flow indicators | Observation for checking |
| Fuel tanks pipes, vlaves | Observation for check tightness eventually clean filter |
| Fuel pressure indicators | Observation for checking |
| Safety shut off device before burner | Observation to check ease of movement clean burner head |
| Flue gas pass ventilation | Observation for check |
| Flame monitoring sensors | Test after disturbances and clean if found |
| Absent of combustion | Visual check on flame pattern |
| Assessment of furnaces and flue gas passes | Visual check through inspection door in insulation/fouling state |
| Operation of firing equipment | See additional instructions and time limit if any exist |
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