Wilo TOP-S Series User Manual

Installation and operating instructions Wilo-TOP-S/-SD/-Z/-D/-RL/-I 51
English
If the operating fault cannot be remedied, please consult skilled craft firms
or the nearest Wilo after-sales service point or representative.
Fault With the power switched on, the pump does not run
Cause Motor protection has switched the pump off, because:
a) Switch off
because of
hydraulic over-
loading of the
pump.
b) Switch off because of
obstruction within the
pump.
c) Switch off
because of
excessive fluid
temperature.
d) Switch off
because of
excessive
ambient tem-
perature.
Remedy a) Throttle the
pump at the
pressure side to
an operating
point on the
performance
curve.
b) If necessary remove
the vent screw (visible
from outside) from the
pump and check the free
running of the pump
rotor by turning the
slotted shaft end, using
a screwdriver; unblock if
necessary.
Alternatively:
Deinstallation of the
motor head check; if
necessary perform
deblocking by rotating
the impeller. If the
obstruction cannot be
cleared, contact after-
sales.
c) Reduce the
temperature of
the fluid, see
name plate
data.
d) Reduce the
ambient tem-
perature , e.g.
by insulating
the pipework
and fittings.
Display Displays of the lights in the terminal box type
12345
6789
----red
green red green green
Fault acknowl-
edgement
Terminal box type 1/2:
Auto-reset; after the motor has cooled down, the pump restarts automatically.
Terminal box type 5/7:
After the motor has cooled down, press the reset button for a manual reset of
the fault. The pump will restart.
Terminal box type 3/4/9
It the WSK was connected to external switchgear, this must be reset.
Terminal box type 6/:
After the motor protection has tripped, switch off the mains power supply.
Allow the pump to cool down approx. 8 to 10min, then switch the power supply
on again.

Wilo TOP-S Series Specifications

General

Application	Heating
Power Supply	1~230V, 3~400V
Maximum Operating Pressure	10 bar
Speed Stages	3
Materials	stainless steel shaft
Shaft Seal	Mechanical seal