ENGLISH
GB
70
Insufficient
delivery
Red: off
White: on
Blue: off
1. Suction depth too
high.
2. Suction pipe
clogged or diame
-
ter insufficient.
3. Impeller or hydrau
-
lic part clogged.
1. As the suction depth increases
the hydraulic performance of
the product decreases. Check
whether the suction depth can
be reduced. Use a suction pipe
with a larger diameter (but never
smaller than 1”).
2. Check the suction pipe, find the
cause of choking (obstruction,
dry bend, counterslope, …) and
remove it.
3. Dismantle the system and
remove the obstructions (assis
-
tance service).
The pump
starts with
-
out utility
request.
Red: off
White: on
Blue: off
1. Leak in the
system.
2.
Faulty non-return
valve.
1. Check the system, find and
eliminate the leak.
2. Service the non-return valve as
described in par. 9.3.
The water
pressure
when turn
-
ing on the
utility is not
immediate.
Red: off
White: on
Blue: off
Expansion vessel
empty (insufficient
air pressure) or has
broken diaphragm.
Check the air pressure in the ex
-
pansion vessel. If water comes out
when checking, the vessel is bro
-
ken: assistance service. Otherwise
restore the air pressure according to
the equation par. 1.2.
When the
utility is
turned on
the flow
falls to
zero before
the pump
starts
Red: off
White: on
Blue: off
Air pressure in the ex
-
pansion vessel higher
than the system
starting pressure.
TCalibrate the expansion vessel
pressure or configure the parame
-
ters SP and/or RP so as to satisfy
the equation par.1.2.
The display
shows
BL
Red: on
White: on
Blue: off
1. No water.
2. Pump not primed.
3.
Setpoint not
reachable with the
set RM value
1-2. Prime the pump and check
whether there is air in the pipe.
Check whether the suction or any
filters are blocked.
3. Set a RM value that allows the
setpoint to be reached.
The display
shows
BP1
Red: on
White: on
Blue: off
1.
Faulty pressure
sensor.
1. Contact the assistance centre.
The display
shows
BP2
Red: on
White: on
Blue: off
1.
Faulty pressure
sensor.
1. Contact the assistance centre.
The display
shows
OC
Red: on
White: on
Blue: off
1. Excessive absorp
-
tion.
2. Pump blocked.
1. Fluid too dense. Do not use
the pump for fluids other than
water.
2. Contact the assistance centre.
The display
shows
PB
Red: on
White: on
Blue: off
1. Supply voltage
too low.
2. Excessive drop in
voltage on the line.
1. Check the presence of the
correct supply voltage.
2. Check the section of the power
supply cables.
Содержание DAB E.SYBOX
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