Operation Sequence Of The Burner; Burner Start-Up; Ignition Failure; Burner Flame Goes Out During Operation - Riello RLS 70 Manual

6.11

Operation sequence of the burner

6.11.1 Burner start-up

0s TL closes, fan motor starts, (in case of oil operation,
pump motor starts)
6s servomotor starts, maximum opening.
11s air damper is at its maximum opening
37s servomotor closing phase starts at the minimum output.
40s air damper is in the ignition point position (minimum
output)
43s ignition transformer strikes a spark
48s 1st stage fuel valve opens
51s ignition discharge ends
59s with TR in 2nd stage, servomotor reaches its maximum
opening and the second fuel valve opens.

6.11.2 Ignition failure

If the burner does not fire, it goes into lockout within 3 seconds
after the valve opens and approximately 51 seconds after the TL
closes and the pre-purging phase starts and lasts 15 seconds.

6.11.3 Burner flame goes out during operation

If the flame should accidentally go out during operation, the
burner will lock out within 1s.

6.11.4 LED PANEL

It gives 6 information through the lighting up of the LEDs, (see
Fig. 43).
Key:
D478
= Voltage present
= Fan motor lockout (red)
= Burner lockout (red)
= 2nd stage operation
= 1st stage operation
= Burner operation
Start-up, calibration and operation of the burner
M
M
VS
V1
MIN
V2
MAX
M
M
VS
V1
MIN
V2
MAX
35 GB
Burner start-up
IGNITION FAILURE
D489
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Fig. 41
20168709
Fig. 42
Fig. 43
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