E7014
3
DESCRIPTION
ESA ESTRO is a device based on microprocessor technology, provided with input and output
connections, suitable to control discontinuous burners operation (at least one burner shutoff each 24
hours). The instrument is available in four different releases.
• ESA ESTRO- A: single stage burner (one gas valve) with air valve operation control
The configuration software allows the proper definition of the air valve operation.
• ESA ESTRO- B: two stages burners (1
st
pilot, 2
nd
main).
The configuration software sets the operation of the pilot burner (1
st
stage gas) in continuous or
discontinuous mode.
• ESA ESTRO-C: single stage burner (one gas valve) with output signal for burner “ON” indication.
ESA
ESTRO
A
IGNITION
TRANSFORMER
DIGITAL INPUT
GAS VALVE
REMOTE
CONTROL
AIR VALVE
FLAME SIGNAL
ALARM
ESA
ESTRO
B
IGNITION
TRANSFORMER
DIGITAL INPUT
1ST STAGE
GAS VALVE
REMOTE
CONTROL
2ND STAGE
GAS VALVE
FLAME SIGNAL
ALARM
ESA
ESTRO
C
IGNITION
TRANSFORMER
DIGITAL INPUT
GAS VALVE
REMOTE
CONTROL
BURNER ON
FLAME SIGNAL
ALARM
