Maintenance And Care - AL-KO HWA 4000 comfort Manual De Instrucciones

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Operation
1. Take the unit into operation as described (in-
itial start-up of the unit).
The domestic water pump is electroni-
cally controlled and operates fully auto-
matically after initial start-up.
2. The pump switches on when water is drawn
off at the pressure side. The display shows
ON X and PRESSURE as well as the actual
pressure.
If no water has been drawn in
through the suction line within 20 se-
conds, the pump switches to a che-
cking mode. In this, the pump con-
tinues to run and the display shows
CHECK SUCTION SIDE.
If no water is drawn in via the suc-
tion line (Fig. B -14) in approx. 90
seconds, the dry-run protection swit-
ches off the pump, and the display
shows ALARM and SUCTION SIDE.
Troubleshooting and fault rectifica-
tion, see Help in case of malfunc-
tions.
If the pump switches on and off fre-
quently although no water is being
drawn off, the pump will switch its-
elf off to protect against overheating
and the display shows ALARM and
PRESSURE SIDE. Troubleshooting
and fault rectification, see Help in
case of malfunctions.
Switching the pump off
1. Remove the mains plug from the plug socket.
2. Close the closing off devices (valves, spray
nozzles, water tap) in the pressure line.
CAUTION!
Danger of injury from hot water
In extended use against the closed pres-
sure side (>10 min.), the water in the
pump can be severely heated up and can
be emitted in an uncontrolled manner!
Isolate the unit from the mains and allow
the pump and water to cool down. Start
the unit again only after all the faults have
been rectified!
The risk of injury from hot water can arise if:
18
the installation is not correct
the pressure side is closed off
there is a lack of water in the suction line, or if
the pressure switch is defective.
Procedure
1. Isolate the unit from the mains and allow the
pump and water to cool down.
2. Check the unit, the installation and water le-
vel.
3. Start the unit again only after all the faults
have been rectified!

MAINTENANCE AND CARE

CAUTION!
The pump must be isolated from the
mains before any maintenance and ser-
vice work. Remove the mains plug from
the plug socket.
Flushing the pump
After conveying swimming pool water containing
chlorine or fluids that leave a residue the pump
must be flushed out with clear water.
Cleaning the filter
1. Unscrew the drain screw filter chamber (Fig.
A -6) of the draining opening, drain the fil-
ter chamber and close the draining opening
again.
2. Clear filter cover (Fig. A -1) using the filter key
(Fig. C -15/D) .
3. Remove the filter (Fig. C -16/C-17) from the
filter housing (Fig. A -2) and clean under flo-
wing water.
4. Cleaning the filter housing and clear sight filter
cover.
5. Before fitting the filter, check the filter seal
(Fig. C -16) and the housing seal (Fig. C -20)
for damage, and replace if necessary.
6. Fit the filter, screw the filter clear sight cover in
place and tighten hand-tight with the filter key.
Cleaning the check valve
1. Removing and fitting the filter (see Section
"Cleaning the Filter").
2. Check valve (Fig. C -18) and clean under flo-
wing water.
3. Replace seal (Fig. C -19) if necessary.
4. Fit check valve.
HWA 4000 /4500 / 6000-5
Startup

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