DGFLOW PRESFLO Notice D'instructions page 7

Operation
1
No power supply
Press briefly or hold down
= nothing happens
Power is restored = PRESFLO
resumes NORMAL SERVICE and
starts the pump (if necessary).
2a
NORMAL SERVICE: the pump is inactive.
PRESFLO
higher than that of the start-up pressure
(Pm) and no flow.
Press briefly = the pump is
started manually and runs for
a few seconds before stopping
again.
Hold down = lthe pump is put STAND-
BY. For instructions on how to reactivate
the pump, see point 3.
A tap is turned on = as soon as the
pressure falls below the start-up pressure
(Pm), the pump is started.
2b
NORMAL SERVICE: the pump is running
assembly pressure is normally higher
than the START-UP pressure, but it may
also be lower.
Press briefly or hold down
= the pump is stopped and put
STAND-BY.
For instructions on how to reac-
tivate the pump, see point 3.
The taps are turned off = Sif there is
no flow for a few seconds, the pump is
stopped.
PRESFLO is switched off.
®
®
The system is pressurised.
All taps are turned off. There is
no demand for water.
detects an assembly pressure
®
The assembly requires water.
One or more taps are turned on.
PRESFLO detects a flow; the
®
= Off = On
2c
NORMAL SERVICE: pump during shutdown
closed. The pump is still in operation.
The system is pressurized. PRESFLO
detects a system pressure higher than
the start-up
pressure (Pm) and no flow.
Press briefly or hold down =
the pump is stopped and put in
STAND-BY
To reset see point 3.
If the absence of flow lasts for a few
seconds the pump is stopped
3
STAND-BY
remain inactive until a new
command is given.
Press briefly
= nothing happens.
Hold down
= the pump resumes NORMAL SERVICE.
See points 2a - 2b.
4a
ERROR: stopped temporarily due to DRY RUNNING
pump is dry running and has therefore
stopped it TEMPORARILY.
Press briefly = the pump is started and
manually and resumes NORMAL SERVICE.
See points 2a - 2b.
Hold down
= the pump is put STAND-BY.
For instructions on how to
reactivate the pump, see point 3.
ERROR: temporary shut down due to FREQUENT
4b
START UP
pump starting-up too often and has therefore
stopped it TEMPORARILY.
Press briefly = the pump
is started and manually and
resumes NORMAL SERVICE.
See points 2a - 2b.
Hold down
= the pump will not restart and goes OUT
OF ORDER. The pump is put STAND-BY. For
instructions on how to reactivate the pump,
see point 3.
= Flashing
The system has just
ceased to require
water. All taps are
®
The pump has been
stopped manually.
The pump will
See NOTE 1)
PRESFLO has
®
detected that the
(see NOTE 2)
PRESFLO has
®
detected that the