Installation manual
Description of the Previdia Ultra system parts
43
Blinking
ON
ON
YES
NO
OFF
YES
NO
ON
OFF
ON
ON
ON
ON
Pre-extinction
time started
Pre-extinction time
terminated
Condition
sufficient?
Stop
extinction
?
PRE-EXTINCTION
AUTOMATIC
“EXTERNAL”
“EXTERNAL”
Deactivation
STOP “ABORT”
mode
“HOLD”
Activation
“ADD”
Activation
“ABORT”
MANUAL
“HOLD”
Deactivation
“ADD”
Deactivation
Stand-by
from flow sensor
ACTIVATION
Manual
Automatic
Blinking
Flash
ON
ON
YES
NO
OFF
YES
NO
OFF
Pre-discharge time
started and
terminated
Interval expired
between two
discharge
Pressure
switch?
activated?
Verify?
Gas discharged
Discharge time started
and terminated
DISCHARGE GAS
YES
Confirm from
ON
YES
NO
Pulse
Electrovalve
?
