baltur TBML 350 ME Installation, Use And Maintenance Instruction Manual page 77

AIR REGULATION ON THE COMBUSTION HEAD
A = ADJUSTMENT KNOBS
B = LOCKING NUTS
The optimal position of operating is the factory-set minimum
X=110mm.
If the flame is turbulent or too unstable, move backwards the diffuser
by increasing the X dimension, by operating on both adjustment
knobs A, after loosening locking nut B.
POWER AT START-UP
The standard EN 676 prescribes that for burners with maximum
output above 120 kW the ignition must occur at a lower power Pstart
than the maximum power of operation Pmax at which the burner is
calibrated.
Pstart it depends on the safety time of the burner equipment; in
particular:
ts = 2s → Pstart ≤ 0,5
ts = 3s → Pstart ≤ 0.333
Example if the maximum burner output regulation Pmax is 900 kW,
it should be:
Pstart ≤ 450 kW with ts = 2s
Pstart ≤ 300 kW with ts = 3s
Check the output at ignition
• Disconnect the flame sensor cable (in this case the burner lights
up and locks out after the safety time ts).
• Switch on 10 times with consequent lock-outs.
Measure at the meter the amount of gas burned Qstart [m³] and
•
check that Qstart ≤ Pmax /360 (Pmax in m³/h)
Example
Pmax = 90 m³/h (approx. 900 kW with natural gas)
After switching on 10 times with consequent lock-outs, the gas
consumed measured by the meter should be:
Qstart ≤ 90/360 = 0.25 [m³]
If this does not occur, reduce the flow of gas to the ignition through
the brake of the valve.
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x Pmax.
x Pmax.