Operation Programme; Normal Operation With Preheating - Riello G30 MRBLU CF 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
Waiting time of a control box input signal: reaction time,
t1
the control box stands still for the time t1.
Presence of extraneous light before the heat request: if
t1I
the presence of light during the t1l time, a block follows.
Wait time after a request for heat:
t2
the control box stays still for the t2 time.
Presence of extraneous light during the oil preheating:
t2I
if the presence of light lasts the t2l time, a block follows.
Maximum preheating time: if the thermostat K does not
t2p
make the switch within the time t2p a block follows, the
control box remains still for the time t2p.
Pre-purging time
t3
start of the fan motor.
Presence of a n extraneous light during pre-purging.
t3I
immediate block.
Operation
Green
Green Yellow Yellow
Block
Green
Yellow Yellow
Fig. 20
Key to lay-out
– Flame detector
F
– Ignition transformer
I
– Enabling switch thermostat for start up after preheating
K
– Signal of operation status from reset button
LED
– Fan motor
MV
– Diesel oil heater
PH
– Limit thermostat
TL
– Oil valve
V1
Red
Green + Yellow slow blinking
Green + Yellow fast blinking
Yellow
Green
Green + Yellow medium blinking
Red + Yellow fast blinking
Yellow fast blinking
Operating times
max
t1
max
t1I
-
t2
max
t2I
max
t2p
-
t3
max
t3I
The time is expressed in seconds
Safety time:
ts
if at the end of the ts time there is no flame, a block fol-
lows.
Transformer turn on time
t4i
total turn on time ts + t5i.
Transformer post- turn on time:
t5i
additional turn on time after ts.
Flame loss in operation:
t4I
maximum oil valve drop reaction time, after three recycle
attempts a block follows.
Post-purging time:
t6
additional purging time on the opening of the he at limit
thermostat (TL).
Presence of an extraneous light during post-purging. if
t6I
the presence of light lasts the t6l time, a block follows.
Long pre-purging time
t7
pre-purging time more than t3.
19
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
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