Operation Sequence Of The Burner (Gas Operation) - Riello RLS 68/E MX Installation, Use And Maintenance Instructions

4.12.1 Operation sequence of the burner
(gas operation)
Timer - Resolution - Ratio
Timer 3 = max. phase time
RAST plug
Input signals
PIN number
Thermostat/pressure switch
X3-04 Pin 1/2
safety TS
Thermostat/pressure switch
X5-03 Pin 1/4
indicator TL
X10-05 Pin 2 Pin 3/4
Flame sensor
X10-06 Pin 1/2
Air pressure switch PA
X3-02 Pin 1/2
Min. gas pressure switch
X5-01 Pin 2/3
PGmin
Min. gas pressure switch
X5-01 Pin 2/3
PGMin
Max gas pressure switch
X5-02 Pin 2/3
PGMax
Gas pressure switch for
X9-04 Pin 2/3
PGVP leak detection control
Alternative to the control
X5-02 Pin 2/3
CPI seal
RAST plug
PIN number
X3-05 Pin 1 Fan motor MV
Transformer of
X4-02 Pin 2/3
TA ignition
X6-03 Pin 2/3 Safety valve VS
X8-02 Pin 1/3 Fuel valve V1
X7-01 Pin 2/3 Fuel valve V2
X7-02 Pin 2/3 Pilot valve VP
X3-05 Pin 2 Lock-out signal
Pos. of post-purging
X54
Pos. without load
Pos. of post-purging
X53
Pos. without load
S8870
Signal ON
Signal OFF
Both states are allowed
Technical description of the burner
Phase number
5) 6)
27s 5s
Timer 1 (parameters)
Timer 2 (parameters)
Pa
P
P
P
P
90°
Nominal load
Ignition load
Low flame
0°
90°
Nominal load
Ignition load
Low flame
0°
Operation
Start-up
t1 TSA1
13)
0.6s
30s
15 GB
Checking of
Switching off seal
Fig. 7
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