Operation Programme; Normal Operation With Preheating - Riello G30 MRBLU BF Installation, Use And Maintenance Instructions

8.8

Operation programme

8.8.1

Normal operation with preheating

Yellow
Flame loss during operation (Recycle max 3 attempts)
MV = still
Yellow
Signal not required
D7230
t1 Waiting time of a control box input signal: reaction time,
the control box stands still for the time t1.
t1I Presence of extraneous light before the heat request: if
the presence of light during the t1l time, a block follows.
t2 Wait time after a request for heat:
the control box stays still for the t2 time.
t2I Presence of extraneous light during the oil preheating:
if the presence of light lasts the t2l time, a block follows.
t2p Maximum preheating time: if the thermostat K does not
make the switch within the time t2p a block follows, the
control box remains still for the time t2p.
t3 Pre-purging time
start of the fan motor.
t3I Presence of an extraneous light during pre-purging.
immediate block.
20011757
Operation
Green
Green Yellow Yellow
Block
Green
Yellow Yellow
Fig. 21
Key to lay-out
F – Flame detector
I – Ignition transformer
K – Enabling switch thermostat for start up after preheating
LED – Signal of operation status from reset button
MV – Fan motor
PH – Diesel oil heater
TL – Limit thermostat
V1 – Oil valve
Red
Green + Yellow slow blinking
Green + Yellow fast blinking
Yellow
Green
Green + Yellow medium blinking
Red + Yellow fast blinking
Yellow fast blinking
Operating times
t1 max
t1I max
t2 -
t2I max
t2p max
t3 -
t3I max
The time is expressed in seconds
ts Safety time:
if at the end of the ts time there is no flame, a block fol-
lows.
t4i Transformer turn on time
total turn on time ts + t5i.
t5i Transformer post- turn on time:
additional turn on time after ts.
t4I Flame loss in operation:
maximum oil valve drop reaction time, after three recycle
attempts a block follows.
t6 Post-purging time:
additional purging time on the opening of the heat limit
thermostat (TL).
t6I Presence of an extraneous light during post-purging. if
the presence of light lasts the t6l time, a block follows.
t7 Long pre-purging time
pre-purging time more than t3.
20 GB
1 ts
30 t4i
3 t5i
30 t4I
600 t6
15 t6I
1 t7
- 5
- 8
- 3
max 1
max 360
max 30
- 120