Download Operating Instructions - Lauda

Integral T Process Thermostats
7.8.3
Pump motor monitoring
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In case of pump motor overload or a blockage, the heating, the pump and the
refrigeration system are switched off.
7.8.4
A double tone sounds.
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The display PUMP 1 appears and the fault triangle is
flashing.
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Rectify the fault, e.g. clean the pump or check the
viscosity, then
−
if necessary allow the equipment to cool down approx.
30 min.
−
reset with the key.
WARNING! Equipment and pump start up!
−
If several faults appear simultaneously, they have to be
reset individually.
−
In case of overload of the pump for the external circuit
the message PUMP 1 is displayed on model T 4600 W.
−
On units with a separate pump for internal circulation
(T 4600 - T 10000 W) the message PUMP 2 means
that the fuse F5 has to be replaced.
Only by a qualified electrician: remove the side panel
on the right.
−
On units with a 3-phase pump (T 7000 - T 10000 W)
the message PUMP 1 means that the motor protection
cut-out has to be reset.
Only by a qualified electrician: remove the side panel
on the right.
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The compressor is switched off if the refrigerant
pressure is excessive.
−
This message is displayed.
−
A double tone sounds.
−
The refrigeration compressor starts up automatically!
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Reset the fault message PRES.
Refrigerant pressure
80
−
Starting up
YAWE 0026 / 23.08.2006