35
20165123
GB
Start-up, calibration and operation of the burner
6.10
Operation sequence of the burner
6.10.1 Burner start-up
6.10.2 Ignition failure
If the burner does not ignite, it locks out within 3 seconds after the
valve opens, 57 s after the TL closes and the post-purging phase
starts lasting 17s.
6.10.3 Burner flame goes out during operation
If the flame should accidentally go out during operation, the
burner will lock out within 1s.
6.10.4 LED Panel
It gives 6 information through the lighting up of the LEDs.
See Fig. 41.
Key:
0 s
TL closes, fan motor starts, (in case of oil operation,
pump motor starts)
6 s
servomotor starts, maximum opening.
11 s
air damper is at its maximum opening
42 s
servomotor closing phase starts at the minimum output.
45 s
air damper is in the ignition point position (minimum
output)
48 s
ignition transformer strikes a spark
54 s
1st stage fuel valve opens
57 s
ignition discharge ends
66 s
with TR in 2nd stage, servomotor reaches its maximum
opening and the second fuel valve opens.
D478
= Voltage present
= Fan motor lockout (red)
= Burner lockout (red)
= 2nd stage operation
= 1st stage operation
= Burner operation
D489
Fig. 41
Fig. 42
BURNER START-UP
M
M
VS
V1
MIN
V2
MAX
20141127
M
M
VS
V1
MIN
V2
MAX
Fig. 43
IGNITION FAILURE
20166799
Summary of Contents for RLS 28
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