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− stops the pump if no water is
pumped to prevent it from running
dry (air in suction line).
8
9
10
8 Reset button
9 Fault indicator lamp (red)
10 Power indicator lamp (green)
1.
Plug power cable in.
2.
Check that the power indicator lamp
(10) is on.
3.
Open discharge line.
4.
Press the reset button (8). The
pump will start up.
•
If no water is pumped after approx.
10 seconds, the Hydromat will stop
the pump. In this case keep the
reset button pressed until water
comes out.
•
If not water comes out within
3 minutes, check suction line.
3
Note:
If the fault indicator lamp (9)
lights up, there is either air in the suction
line or the cut-in pressure too high (see
"Trouble Shooting").
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
3300 4000
Pump characteristic curve at 0.5 m suc-
tion head and 1" suction hose – for
model:
A
HWA 5500 M
B
HWA 4000 N
C
HWA 3300 N
7. Care and Maintenance
A
Danger!
Prior to all servicing:
− Unplug.
− Ensure that pressure is relieved
from equipment and connected
accessories.
Service and repair work other than
described here must be left to quali-
fied specialists.
7.1
Periodic maintenance
•
Check equipment and accessories,
especially electrical parts and parts
under pressure for possible dam-
age; have repaired, if necessary.
•
Check suction and pressure lines for
leakages.
•
If the pump capacity lessens clean
suction strainer and filter cartridge (if
installed), replace if necessary.
7.2
Danger of freezing
A
Caution!
Frost damages the pump and
accessories, as both always contain
water!
•
When there is danger of freezing,
dismount equipment and accesso-
ries and store at a freeze-proof loca-
tion (see below).
7.3
Equipment dismounting
and storing
1.
Unplug.
2.
Open pressure line (open tap or
spray nozzle) and drain water com-
pletely.
3.
Drain pump completely; to do so
remove the drain plug from the
pump.
4.
Disconnect suction and pressure
lines from the equipment.
5.
Store equipment in a frost-free
space (at least 5 °C).
8. Trouble Shooting
A
Danger!
Prior to all servicing:
− Unplug.
− Ensure that pressure is relieved
from equipment and connected
accessories.
l / h
5500
ENGLISH
8.1
Fault finding
Pump does not run:
•
Hydromat has shut the pump off.
− Press the reset button.
If after approx. 10 seconds no
water is pumped, keep reset but-
ton pressed until water comes
out.
•
No mains voltage.
− Check cables, plug, outlet and
mains fuse.
•
Mains voltage too low.
− Use only extension cables with
sufficient lead cross section (see
"Technical Specifications").
•
Motor overheated, motor protection
relay tripped.
− Start
equipment
having cooled down (see "Opera-
tion").
− Ensure sufficient ventilation, keep
vent slots clear.
− Observe max. temperature of the
pumped medium.
•
Motor hums but does not start.
− With the motor switched OFF, put
screwdriver or similar through the
fan cover's vent slots and turn the
fan.
•
Pump blocked or out of order.
− Disassemble pump and clean.
− Clean diffusor, replace if neces-
sary.
− Clean impeller, replace if neces-
sary.
Pump does not prime correctly or
runs very noisily:
•
Lack of water.
− Ensure there is a sufficient water
supply.
•
Suction line leaky.
− Seal suction line, tighten screw
fittings.
•
Suction head too high.
− Observe max. suction head.
− Install check valve, fill suction line
with water.
•
Suction
strainer
blocked.
− Clean, replace if necessary.
•
Check valve (accessory) blocked.
− Clean, replace if necessary.
•
Water leaks between motor and
pump, Duocone seal worn.
− Replace Duocone seal.
•
Pump blocked or out of order.
− see above.
Pressure too low, long pump post-run
or pump keeps starting and stopping:
•
Suction line leaky or too much suc-
tion head.
− see above.
again
after
(accessory)
13
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