Discharge Hose Connection; Connection To A Pipe System; Mains Connection; Filling The Pump And Priming - Elektra Beckum HWW 3300/20 K Manual De Uso

ENGLISH
A
Caution!
A check valve is required to
prevent water backflow when the
pump is switched off.
•
All screw fittings need to be sealed
with thread sealing tape; leakage
places cause the priming of air and
reduce or prevent the priming of
water.
•
The suction line should have at least
1" (25 mm) inner diameter; it must
be non-buckling and vacuum-proof.
•
Keep suction line as short as practi-
cal, since with increasing length the
pump capacity is reduced.
•
The suction line
towards the pump to prevent air
locks.
•
A sufficient water supply must be
ensured, the foot valve at the end of
the suction line must be submerged
in water at all times.
5.3 Discharge hose connec-
tion
3
Note:
Possibly further accessories may
be required for connection (see "Availa-
ble Accessories").
A
Caution!
The discharge (or pressure)
line needs to be installed in such
manner that it does not exert mechan-
ical force or distortion to the pump.
•
All screw fittings should be sealed
with thread sealing tape to prevent
leakage.
•
All parts of the pressure line must be
resistant to internal pressure.
•
All parts of the pressure line must be
installed in a workmanlike manner.
A
Danger!
Improper installation and use
of parts not resistant to internal pres-
sure can cause the pressure line to
break during operation. Risk of per-
sonal injury by liquid spurting from
the line under high pressure!
5.4 Connection to a pipe sys-
tem
A permanent installation (e.g. for indoor
domestic water supply) is also possible.
•
To reduce vibrations and noise, the
equipment should be connected to
the piping with elastic hose pipes.
5.5

Mains connection

B
Danger! Risk of electric shock!
Do not operate the equipment
in wet environment and only under
the following conditions:
16
•
Connect only to an earthed outlet
that is properly installed, earthed
and tested.
•
Mains voltage and fuse protection
must correspond to those stated
in the "Technical Specications".
•
When operated at pools, garden
ponds and similar locations, the
equipment must be protected by
a
device (RCD, 30 mA) (DIN VDE
0100 -702, -738 or equivalent
applicable local regulations).
We recommend the use of RCD's
as a general precaution for per-
sonal protection.
should raise
•
When operated outdoors the elec-
trical
splash-proof; they must not be
placed in water.
•
Use only extension cables of suf-
ficient lead cross section (see
"Technical
Unroll cable reels fully.
5.6
A
or priming of air the pump needs to
be filled with water. Starting the pump
without water causes damage!
3
be filled, the pump is self-priming. How-
ever, depending on length and diameter
of the suction line it may take some time
until pressure has built up.
1. Remove the water filler plug, com-
plete with gasket.
2. Slowly pour in clear water, until the
pump is filled.
3. To reduce the time needed for prim-
ing you can also fill the suction line.
4. Replace the water filler plug, com-
plete with gasket.
5. Open pressure line (open tap or
spray nozzle) for any air to escape
during priming.
6. Start equipment (see "Operation").
7. Close pressure line when only water
runs out.

6. Operation

Pump and suction line must be con-
nected and filled (see "Prior to Opera-
tion").
A
there is always sufficient pumping
medium (water) available.
residual current operated
connections must
Specifications").
Filling the pump and
priming
Caution!
After installation, loss of water
Note:
The suction line does not need to
Caution!
Pump must not run dry. Ensure
•
If the motor does not start, no pres-
sure is built up or similar effects are
evident, switch the equipment OFF
– and try to remove the fault (see
"Trouble Shooting").
•
If the pump should be blocked by a
foreign object or the motor overheat,
the motor protection will switch the
motor off.
6.1

Commissioning

3
Note:
The pressure switch
− starts the pump when the water
pressure in the tank falls below the
cut-in pressure by drawing off water;
be
− stops the pump when the cut-out
pressure is reached.
3
Note:
In the tank
pressurized rubber bag ("air charge");
this enables the drawing-off of small
amounts of water without starting the
pump.
1. Plug power cable in.
2. Open pressure line (open tap or
spray nozzle).
3. Check to see the water comes out!
6.2 Pump characteristic
curve
The pump characteristic curve shows
which pump capacity is possible in
dependance on the delivery head.
m
55
48
A
45
B
C
0
0
Pump characteristic curve at 0.5 m suc-
tion head and 1" suction hose – for
model:
A HWW 5500/20 M, .../50 M
B HWW 4000/20 N, .../20 N Plus
C HWW 3300/20 K, HWW 3300/20 N

7. Care and Maintenance

A
Danger!
Prior to all servicing:
− Unplug.
− Ensure that pressure is relieved
from equipment and connected
accessories.
is a factory-
l / h
3300 4000 5500