Riello RS 120/EV LN, Installation, Use And Maintenance Instructions

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Technical description of the burner
13 20062968
Operation sequence of the burner
Legend to the sequence diagrams:
Valve proving takes place depending on the parameter:
2) Only with valve proving on startup
3) Parameter: with/without alarm in the event of start prevention
4) In the event of an erroneous signal on startup, followed by
phase 10, otherwise phase 70
0° Position as supplied (0°)
90° Actuator fully open (90°)
Assignment of times:
t1 Prepurge time
TSA1 Safety time 1 gas / oil
TSA2 Safety time 2 gas / oil
Tab. H
00 02 12 22 24 30 36 38 40 42 44 50 52 60 62 70 72 74
81 82 83 80
3)
4)
2)
TSA1
TSA2
t1
90
p
a
T
P
P
T
P
10
Shutdown Operation
Startup Valve proving
OU
TP
U
T
S
IN
PU
T
S
Phase number
Fu
e
l
A
c
tu
a
tor
2
Ai
r
Act
u
a
to
r 1
Ac
tu
a
to
rs
Safety limit thermostat (STB)
Control thermostat or pressurestat (R)
Flame signal (FS)
Air pressure switch (LP)
Pressure switch-min (Pmin)
Pressure switch-max (Pmax)
Valve proving / leakage test (P LT)
POC (alternative to Pmax)
No-load position
Ignition load
Postpurge position
Nominal load
Low-fire
90°
0°
VSD
Motor (M)
Ignition transformer (Z)
Alarm (AL)
Safety valve (SV)
Fuel valve 1 (V1)
Fuel valve 2 (V2)
Pilot valve (PV)
No-load position
Ignition load
Postpurge position
Nominal load
Low-fire
90°
0°
No-load position
Ignition load
Postpurge position
Nominal load
Low-fire
90°
0°
Fig. 8
D9288
Signal ON
Signal OFF
Any signal is allowed
In standby: after referencing, the actuator is driven to
the no-load position