E7014
17
Postpurge time
0 ÷ 255
Time of furnace chamber purging after shutoff or waiting before next
burner ignition (air valve opening in case of applications with air valve
control). During this phase the device doesn’t accept any external
command.
The function “Postpurge flex” defines the minimum interval of time
between two ignition attempts.
Cycle start
Autostart
The ignition cycle starts automatically at power supply (except for
cases of burner’s lockout before shutoff). This type of setting is
suitable for burner control via the device power supply.
Standby
The ignition cycle doesn’t start automatically at power supply (waiting
for local or remote command). This type of setting is suitable for
burner control via the serial communication.
1° stage gas
outlet type
Intermittent
The 1
st
stage gas remains ON also during the 2
nd
stage gas until the
simultaneous shutoff of both valves.
This setting is allowed only for ESTRO-B release, the parameter is
locked for ESTRO-A, ESTRO-C and ESTRO-Q (only 1
st
stage gas.)
Interrupted
The 1
st
stage gas is turned OFF during the 2
nd
stage gas when the
second safety time or “Regulation delay time” (2
nd
stage stabilization)
is exceeded. This setting is allowed only for ESTRO-B release, the
parameter is locked for ESTRO-A, ESTRO-C and ESTRO-Q (only 1
st
stage gas.)
Daily shut off
Inhibited
The device doesn’t turn OFF automatically each 24 hours for self-
diagnosis. This selection is allowed only for combustion plants with
several burners installed on the same furnace chamber, nevertheless
the accomplishment of the self-diagnosis shutoff have to be controlled
by the overall control system. In case this function is enabled, the
device comply only EN746-2.
Enable
The device turns OFF automatically each 24 hours for self-diagnosis
and flame detection probe test.
Air pressure
switch
Inhibited
The air pressure switch connected to the expansion card is not
verified.
Waiting
A missing signal from the air pressure switch implies:
-
during the purging phase sets at zero the countdown;
-
(with continuous air control) burner shutoff waiting the new signal
presence (automatic restart) .
-
(with discontinuous or pulse air control, and burner lights the
status will change for disabling of air)
Lockout
A missing signal from the air pressure switch implies:
-
during the purging phase sets at zero the countdown;
-
(with continuous air control) burner shutoff waiting the new signal
presence (reset requested for restart).
-
(with discontinuous or pulse air control, and burner lights the
status will change for disabling of air)
