Operation Sequence Of The Burner - Riello RS 44/E MZ Installation, Use And Maintenance Instructions

Start-up, calibration and operation of the burner
5
5.7

Operation sequence of the burner

Signal ON
Signal OFF
Any signal is allowed
Number of the phase
Thermostat/pressure switch
safety TS
Thermostat/pressure switch
indicator TL
Ionisation probe ION
Air pressure switch PA
Minimum gas pressure
switch PGmin
Maximum gas pressure
switch PGM
Gas pressure switch for leak
detection PGVP
Alternative to leak detection CPI
Fan motor MV
Ignition transformer TA
Shutoff valve
Safety valve V1
Adjustment valve V2
Pilot valve VP
Limit lockout
Pos. of post-purging
Pos. without load
Pos. of post-purging
Pos. without load
D7727
List of the phases
Ph00 Lockout phase
Safety phase
Ph01
t10 = closure in pause
Ph10
Standby
Ph12
t22 = Uphill train of the fan motor (fan motor = ON,
Ph22
safety valve = ON)
The burner moves to the pre-purging position
Ph24
t1 = pre-purging time
Ph30
The burner moves to the ignition position
Ph36
t3 = pre-ignition time
Ph38
TSA1= safety time 1 (ignition transformer ON)
Ph40
TSA1 = safety time 1 (ignition transformer OFF),
Ph42
t42 = pre-ignition time OFF
00 01 10 12 22 24 30 36 38 40 42 44 60 62 70 72 74
P
P
Pa
P
P
P
90°
Nominal load
Ignition load
Low flame
0°
90°
Nominal load
Ignition load
Low flame
0°
Operation
Start-up Switching off
t1 TSA1
t44 = interval time 1
Ph44
Operation
Ph60
t62 = max. time to reach the low flame (the burner
Ph62
moves to the switch-off position)
t13 = post-combustion time
Ph70
The burner moves to the post-purging position
Ph72
t8 = post-purging time
Ph74
t80 = emptying time (valve leak detection)
Ph80
t81 = atmospheric test time (valve leak detection)
Ph81
t82 = filling time (valve leak detection)
Ph82
t83 = pressure test time (valve leak detection)
Ph83
Standby time due to lack of gas
Ph90
Ph = Phase
29
GB
Checking of
seal
80 81 82 83 90
Fig. 32
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