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6 Problem solving
Disconnect the power and drain the system before beginning
work on the pump!
Motor runs but there is no flow of water
Possible cause
Empty water tank
Inlet / outlet tube restriction.
Strainer clogged with debris.
Leak in the suction pipe.
Motor does not run
No power on pump circuit.
Loose or corroded electrical
connections.
Short circuit in wiring.
Thermal protection of motor
has been activated (motor is
too hot).
Faulty motor.
Faulty pressure switch.
Locked drive.
Pump continues to run after all taps have been closed
Empty water tank
Pump cycles while tap is closed
Leak in the system.
Faulty pressure switch.
Incorrect voltage.
Air trapped in system.
Leak in outlet tubing.
Low pump capacity or pressure
Dirt in inlet filter.
Worn wobble plate.
Worn diaphragm.
Inlet / outlet tube restriction.
Inlet air leak.
Faulty pressure switch.
Incorrect voltage.
Pump leaks
Loose fasteners.
Pump seals degraded.
Leak in diaphragm.
Noisy or rough operation
Loose pump head.
Rigid plumbing.
10
050407.01
W
arning
Solution
Fill the tank or disconnect the
power to the pump.
Remove restriction.
Clean strainer.
Tighten the hose clamps and
check the fittings.
Check wiring, fuse or circuit breaker.
Check the electrical connections.
Check condition of wires.
Wait until there is an automatic
reset.
Replace pump.
Replace pressure switch assembly.
Replace pump.
Refill.
Tighten leaking hose clamps / fit-
tings.
Replace pressure switch assembly.
Check voltage (± 10 %).
Open a tap as close to the pump
as possible.
Check plumbing for leakage.
Remove cover and clean filter.
Replace pump.
Replace pump.
Remove restriction.
Tighten fittings / Replace cracked
fittings.
Replace pressure switch assembly.
Check voltage (± 10 %)
Tighten fasteners.
Replace pump.
Replace pump.
Tighten fasteners.
Plumb pump with flexible plumbing.
7 Technical Data
Drinking water tank system
04212
Type DWSC
:
04224
Capacity litres*) :
42
Imp.gal. *) :
9.2
US gal. *) :
11.1
Weight
kg *) :
8.7
lbs *) :
19.2
Max. pressure
:
30kPa (0.3 bar, 4 psi)
Tank wall
:
6.35 mm ± 1.3 mm (1/4" ± 3/64")
thickness
mMPE (Metallocene Medium Density
Material:
:
Polyethylene), colour: green
Material meets the KTW standard.(http://www.dvgw.de/465.html)
*)
The values shown are the nominal values for the capacity and
weight. Slight differences are possible.
Dimensions of fittings
for drinking water pipe
for venting
for filler hose
Pump
Type
Number of valves
Capacity
Max. pressure
Maximum riser height
Material,
Pump head
Diaphragm
Valves
Filter, Type
Mesh size
Pressure switch, Settings
Switch-on pressure
Switch-off pressure
Electric motor
Type
:
Permanent magnet direct current motor
Voltage
:
Current, maximum :
Level sensor
Power supply
: 12 or 24 Volts
Analogue, suitable for 1 Vetus
Output
:
tank level meter
06112
08812
06124
08824
61
88
13.4
19.4
16.1
23.2
10.1
12.3
22.3
27.1
: ø 12 mm (
1
/
")
2
: ø 16 mm (
5
/
")
8
: ø 38 mm (1
1
/
")
2
: Self-priming diaphragm pump
: 3
13.2 l/min
:
(2.9 Imp. gal/min, 3.5 US gal/min)
:
310 kPa
(3.1 bar, 45 psi)
: 1.8 m (6 ft)
Polypropylene, Viton®,
:
Stainless steel
:
Santoprene®
:
Viton®,
Polypropylene
: In-line
:
50 Mesh
:
190 kPa
(1.9 bar, 28 psi)
:
310 kPa
(3.1 bar, 45 psi)
12 Volt
24 Volts
7A
4A
Drinking water tank systems DWSC
12012
12024
120
26.4
31.7
13.5
29.8
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