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5.3
Connecting the Suction
Line
3
Note:
Possibly further accessories may be re-
quired for connection (see "Available
Accessories").
A
Caution!
The suction line needs to be installed in
such manner that it does not exert me-
chanical force or distortion to the pump.
A
Caution!
When pumping contaminated fluids in-
stall a suction strainer to protect the
pump from sand and dirt.
3
Note:
A check valve is recommended to pre-
vent water backflow when the pump is
switched off.
– All screw fittings must be sealed
with thread sealing tape; leaks
cause the priming of air, which re-
duces or completely prevents the
priming of water.
– The suction line should have an in-
ner diameter of 1" (25 mm) mini-
mum and must be kink, pressure,
and vacuum resistent.
– Keep suction line as short as practi-
cal, since with increasing length the
pump capacity is reduced.
– The suction line should raise to-
wards 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.
5.4
Discharge Port
3
Note:
Possibly further accessories may be re-
quired for connection (see "Available
Accessories").
A
Caution!
The discharge (or pressure) line needs
to be installed in such manner that it
14
does not exert mechanical force or dis-
tortion 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 man-
ner.
A
Danger!
Improper installation and use of parts
not resistant to internal pressure can
cause the pressure line to break during
operation. Risk of personal injury by liq-
uid spurting from the line under high
pressure!
5.5
Connection to AC Power
A
Danger! Risk of electric
shock!
Do not operate the pump in wet envi-
ronment and only under the follow-
ing conditions:
– Connect only to an earthed outlet
that is properly installed, earthed
and tested.
– Mains voltage and fuse protec-
tion must correspond with the re-
quirement stated in the "Techni-
cal Specications".
– When operated at pools, garden
ponds and similar locations, the
pump must be protected by a re-
sidual current operated 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.
– When operated outdoors the
electrical connections must be
splash-proof; they must not be
placed in water.
– Use only extension cables of suf-
ficient lead cross section (see
"Technical Specifications"). Un-
roll cable reels fully.
5.6
Filling the pump and
priming
A
Caution!
After installation, loss of water or
priming of air the pump needs to be
filled with water. Starting the pump
without water causes damage!
3
Note:
The suction line does not need to be
filled, the pump is self-priming. Howev-
er, 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 pump (see "Operation").
7. Turn pump OFF when water runs
out steadily.
6.
Operation
Pump and suction line must be con-
nected and filled (see "Prior to Opera-
tion").
If the motor does not start, no pressure
is built up or similar effects are evident,
switch the pump OFF – and try to re-
solve the fault (see "Trouble Shooting").
Pump Characteristic Curve
The pump characteristic curve shows
which pump capacity is possible in de-
pendance on the delivery head.
m
55
0
0
(Pump characteristic curve for 0.5 m
suction head and 1" suction hose.)
l / h
5500
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