After major maintenance or replacement of critical components, the burner must be treated as if it is being put back into operation.
Pre-start check
Mechanical connections, electrical wiring, interlocks, valve positions, and the condition of core safety systems are verified.
First ignition
Start gas, flame stability, and flame signal are checked.
Adjustment across the load range
O₂, CO₂, CO, flue gas temperature, and gas pressure are measured at low, medium, and high fire.
Safety checks
Correct operation of key interlocks and the shutdown sequence is verified.
Final documentation
All final settings and measurements are recorded as a new baseline for future service.

