Operation Sequence Of The Burner (Light Oil Operation) - Riello RLS 120/E FGR Installation, Use And Maintenance Instructions

4.14

Operation sequence of the burner (LIGHT OIL operation)

CPI/POC
X07
X06
X10
X08
X20+X21
X32+X33
X34
X4
X01
X02
X03
X25
X26
X05
S9782
CPI= Closed Position Indicator
POC= Proof Of Closure
(3)
Oil irrelevance time P323, has an effect on the oil safety chain and on the minimum oil pressure when the air valve is opened.
Key to layout (Fig. 8)
Any position
t1 Safety circuits enabling standby time
(boiler and fuel)
t2 Gas valve opening time (with valve leak
detection control device active)
t3 Servomotor opening time
t4 FGR servomotor activation time
t5 Pre-purging time
t6 Pre-ignition time
t7 Flame ignition safety time
t8 Flame stabilisation time
t9' 2nd stage safety time
t10 Modulation phase
t11 Adjustment time
t12 Gas valve opening time (with valve leak
detection control device active)
t13 Post-purging time
t15 post-combustion time
t16 Flame switching off control time
t17 Gas valve control time (with valve leak
detection control device active)
Technical description of the burner
2.4 s
30/60 s
0 - t5
adjustable
adjustable
3s
adjustable
3s
3s
adjustable
adjustable
5 s
30s
Tab. H
15 GB
Key to layout (Fig. 8)
X01 Oil valve 1st level
X02 Oil valve 2nd level
X03 Oil valve 3rd level
X04 Ignition transformer
X05 Oil pressure > min.
X06 Oil safety circuit
X07 Boiler safety circuit
X08 Air pressure switch
X10 Burner on
X20+X21 Flame signal
X25 Fan on
X26 Oil pump
X32 Air servomotor
X33 Fuel servomotor
X34 FGR servomotor (disabled)
Fig. 8
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