SIAD ESA ESTRO Series User Manual

E7014
7
ALPHANUMERIC VISUALIZATION AND PUSHBUTTON
DISPLAY
ESA ESTRO displays through several symbols the status of the burner control device. Fixed characters
indicate the normal operating conditions or some instruments’ failures that cannot be restored, while
lockout conditions or restorable failures are indicated with blinking symbols.
Normal operation stages
DISPLAY INDICATION DESCRIPTION
FIXED
Self-diagnosis phase; the equipment controls the efficiency of its
components. It is shown every time the equipment is powered or when
the burner is re-started (it lasts near 2 sec).
BLINKING
Manual lockout. The equipment is waiting for the operator’s reset
command via the local, remote or serial button. It is shown every time
the equipment is powered in case the parameter “Power on” is
configured as “Stand-by".
FIXED
Burner shutoff caused by the temp controller. The instrument leads the
burner in “off” mode, close the air valve and disables others exits.
FIXED
Air pressure switch signal waiting phase after air valve activation (or
blower start), or burner shutoff during operation in case of incorrect air
pressure signal. It is shown with expansion cards in case the parameter
“Air switch” is configured as “Waiting”.
FIXED
Initial purging: air valve is opening and the maximum opening position
is not yet reached (position switch). It is shown with expansion cards in
case the parameter “Air damper” is configured as “Local o Remote".
FIXED
Purge or waiting time before burner ignition. For applications with
controlled cooling slope, only the air valve is open in this phase. At this
stage the device verifies the presence of illegal flames and eventually
generates a shutoff reaction.
FIXED
Initial purging: air valve is closing and the minimum opening position is
not yet reached (position switch) to warrants ignition at minimum firing
rate. It is shown with expansion cards in case the parameter “Air
damper” is configured as “Local o Remote".
FIXED
Burner ignition at 1
st
stage gas, it lasts as the first safety time. The
device activates the ignition transformer and the 1st stage gas valve,
then deactivates the transformer and verifies the flame presence.
FIXED
Check of flame stability at 1
st
stage gas, followed by the flame’s
amplifier control. This phase is shown also in case of shutoff of the 2
nd
stage burner.
FIXED
Normal operation stage for ESTRO-A, ESTRO-C and ESTRO-Q. For
ESA ESTRO-B release it signals the 2
nd
stage gas burner and it lasts
as the second safety time. In this phase both 1
st
and 2
nd
gas valve are
activated. This is the normal operation stage also for ESA ESTRO-B in
case the parameter “1st stage gas” is configured as “Intermittent”.
FIXED
Normal operation stage for ESA ESTRO-B with only 2
nd
stage gas
burner activated. The device closes the 1st stage gas valve. This phase
is present only in case the parameter “1st stage gas” is configured as
“Interrupted”.

SIAD ESA ESTRO Series Specifications

General

Brand	SIAD
Model	ESA ESTRO Series
Category	Control Unit
Language	English