Calpeda e-idos Meta Serie Instructions Pour L'utilisation page 22

• pump casing completely filled with clean cold
water berfore start-up.
The pump is not self-priming with liquids containing
oil, alcohol or foaming substances.
The integrated check valve prevents reverse siphoning
through the pump when the pump is stopped and
EN
retains water in the pump for the next start-up.
ATTENTION: avoid prolonged operation
with the pump not primed, without water
delivery from the completely opened outlet.
If the pump does not prime in 5 minutes:
stop the motor, remove the filler cap and
add more water.
If necessary, repeat the priming operation after the
pump has been first emptied and then completely filled
with clean cold water.
ATTENTION: When self-priming for the first
time, once the pump has been primed, it
may be necessary to stop the pump, wait a
few seconds and then restart it with all taps
opened, in order to eliminate the air inside the
pump casing completely.
During the self-priming time, if the pump does not prime
within 2 minutes (5 minutes for MÈTA SMALL), Er07
"not primed" appears. Press the enter button for the
reset and the start button
8.6. Vessel pressure
Once the new re-start pressure is entered (parameter
UP01-UP02), the membrane pre-charge pressure
must be changed to 0,5 bar lower than the re-start
pressure (i.e. 2,9 bar re-start pressure, membrane at
2.4 bar) par. 14 chap. 6.
ATTENTION: Do not pre-inflate the tank membrane
over 3,5 bar; if a higher pressure is required, install an
external tank.
If the pump works for long periods of time with a flow rate
of 2 litres/min or lower it is necessary to install a tank of
maximum 8 litres.
8.7. Gate valve adjustment
With the gate valve completely open or with an outlet
pressure lower than the minimum pressure shown on
the nameplate, the pump may be noisy. To reduce
noise adjust the delivery gate valve.
8.8. Abnormal operation
Never run the pump for more than five minutes
with a closed gate valve.
Prolonged operation without a change of water in the
pump causes dangerous increases of temperature and
pressure.
Prolunged operation with a closed delivery port
causes breakage or damage to parts of the pump.
When the water is overheated due to prolonged
operation with a closed port, stop the pump before
opening the gate valve.
Do not touch the fluid when its temperature is
higher than 60 °C.
Do not touch the pump when the surface
temperature is higher than 80 °C.
Wait until the water has cooled inside the pump before
starting again or opening the draining and filling plugs.
Page 22 / 104
8.9. SWITCH-OFF
The product is designed for continuous operation, the
switch off is performed by disconnecting the power
supply by means of the dedicated disconnecting
devices. (see paragraph "6.5 Electrical connection").
9. MAINTENANCE
Before any operations it is necessary to disconnect the
power supply.
If required ask an electrician or an expert technician.
In case of extraordinary maintenance, or maintenance
operations that require removing parts, the operator
must be a qualified technician able to read diagrams
and drawings.
to restart the pump.
It is advisable to keep a record of all maintenance
operations performed.
Maintenance operations that are not described in
this manual must be performed only by specialised
personnel authorised by Calpeda S.p.A.
For further technical information regarding the use or
the maintenance of the device, contact Calpeda S.p.A.
9.1. Routine maintenance
META_S_Rev100000277_01-s13 - Operating Instructions
ON
The appliance must be switched off every time
there are faults. (see troubleshooting).
All maintenance operations, cleaning or repairs
performed with the electrical system connected
could cause serious injuries to people.
If the power cable is damaged, it must be
replaced by the manufacturer, its service agent
or similarly qualified persons in order to avoid
a hazard.
During maintenance, be very careful not to
i
allow foreign bodies to enter the circuit, even
if very small, as the safety of the device could
be compromised.
It is forbidden to perform any operations using
your bare hands. Use water-resistant, anti-cut
gloves to disassemble and clean the filter or in
other particular cases.
During maintenance
i
personnel is not allowed.
OFF
Before all maintenance operations disconnect
the power supply and make sure that the
device cannot be accidentally connected.
In the case of water containing chloride
(chlorine, sea water), the risk of corrosion
increases in stagnant water conditions (also
with an increase in temperature and decrease
in pH value). In these cases, if the pump
remains inactive for long periods, it must be
emptied completely and, preferably, dried.
If possible, as in the case of temporary
operation with dirty liquids, run the pump
operations external