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CONTRIVE • B1444
|FIRO.EN
10
20
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PARAMETERS
101
START-UP MODE
AUTOSTART
A
STANDBY
S
303 PREPURGE (WAITING) TIME
0” …
000
DEFAULT
1
”
… 250”
250
401
PRE-IGNITION TIME
1
0,5”
402
SAFETY TIME
2” …
02
DEFAULT 3”
… 25”
25
403
BURNER STARTUP ATTEMPTS
1
1
2
2
3
3
4
4
504
FLAME FAILURE
LOCKOUT
L
RECYCLE
C
IGNITION RESTORATION
K
505 FLAME FAILURE RESPONSE TIME
1” …
01
DEFAULT
1
”
… 12”
12
602
POSTPURGE (WAITING) TIME
0” …
000
DEFAULT
1
”
… 250”
250
ENCLOSURE
PLASTIC
FRP
ALUMINIUM
FRA
1
NON-
CONFIGURABLE PARAMETER
101 – START-UP MODE
At power-on, once the self-test has been successfully completed, the unit waits in
STANDBY mode until a reset operation is performed from push button
, input or
through a fieldbus remote command. Setting AUTOSTART mode, the cycle starts
automatically, unless the units has been turned off while in lockout.
303 – PREPURGE TIME
EN298 §
3.124
.
1
-
§ 3.124.2
-
§ 3.124.3
-
§ 3.124.4
Set pre-purge time in forced draught burners according to applicable and relevant
standards (EN 676). During this time the flame
simulation test is carried out.
This is a merely waiting time if there is no air control.
401 – PRE-IGNITION TIME
EN298 §
3.135.3
The ignition transformer is turned on 500 ms before the pilot fuel valve to check
the correct operation before supplying the fuel.
This is a fixed time and can not be changed.
402 – SAFETY TIME
EN298 §
3.116
Set the correct time following EN 746
-2 (or other relevant) requirements:
Natural draught burners
≤
35
0 kW → 10”
> 35
0 kW → 5”
IGNITION POWER
≤
33% NOMINAL POWER WITH MAXIMUM OF 350 KW
Forced draught burners
≤
7
0 kW → 5”
> 70kW
→
3”
IGNITION POWER ≤ 10%
NOMINAL POWER WITH MAXIMUM OF 350 KW
403 – BURNER STARTUP ATTEMPTS
EN
746
-2 -
EN676
When the flame is not detected at the end of startup safety time, it is possible to
make up to 4 startup attempts (including the first one), if the safety of the
application is not impaired, repeating the cycle from the beginning.
A lockout will occur if no flame has formed within programmed attempts.
