41
®
Option 4.0 - Safety time configuration (0 - 10)
Determines which set of safety times are used. This value must be set according to the application
and local regulations.
Note: Times are shown in seconds. For a full explanation of each safety time, see Operation in run
mode. For response times to flame failure during operation, see Option 3.2 . Safety time configura-
tions similar to Flame Monitor timings are indicated by the Flame Monitor programmer model num-
ber in parenthesis.
* If an oil profile is selected, t4 will always be 5 seconds regardless of the times chosen.
** See Option 4.4 for extended MTFI.
*** Using configuration #7 or #9 the ignition transformer is off during t5.
**** Options 9 and 10 allow an additional 30 second purge allowing the FGR damper to fully close.
A 30 second purge with the FGR damper closed is then achieved.
Option 4.1 - Ignition time (0 - 999 sec)*
The time at which the drives remain in their ignition positions before the unit moves the drives to
low fire. During status 14 of the start-up sequence, this time or time t7 is used, depending on which
one is the larger.
Option 4.2 - Low fire hold time (0 - 999 sec)*
During status 15 of the start-up sequence, this is the time at which the drives remain in their low fire
positions before modulation.
Option 4.3 - Post purge time (0 - 999 sec)*
The time at which the drives remain in their purge positions after the burner has turned off.
If this option is set to 0, the drives will move straight to their closed positions after the burner has
turned off and there is no post purge.
No post-purge will be performed if the burner did not reach pre-purge when turned off.
Note: This optional postpurge must not be used to replace the pre-purge time as dictated by the set-
ting of option 4.0. The correct pre-purge time must still be chosen.
Option 4.4 - Extended pilot time (0 - 20 sec)*
The time for which the pilot valve remains open after the main fuel valve opens, oil only. If the time
entered is less than the safety time configuration set by Option 4.0 the table time will be used.
Configuration
Prove Air
Pressure
t1
Supervised
Purge
t2
Pre-
Ignition
t3
Pilot Trial
for Ignition
t4*
Pilot
Ignition
Interval
t5
Main Trial **
for Ignition t6
Wait for
Flame
Established
t7
0
6
15
4
2
4
2
2
1 (EP113)
8
36
4
2
8
2
8
2
10
37.5
5
2.5
10
5
7.5
3 (EP113)
8
66
4
2
8
2
8
4
10
67.5
5
2.5
10
5
7.5
5
15
30
4
5
8
5
2
6
15
60
4
5
8
5
2
7 (EP170)
10
30
0
5
5***
10
2
8 (EP160)
10
30
0
5
5
10
2
9 (EP170FGR)****
10
60
0
5
5***
10
2
10 (EP160FGR)****
10
60
0
5
5
10
2
