Pump-Motor Supervision: Overload Or Blockage; Pump-Motor Supervision: Dry Running - Lauda Proline RP 845 C Operating Instructions Manual

Proline Edition X cooling thermostats

7.14.5 Pump-motor supervision: Overload or blockage



Pump alarm
bL0C
Command

7.14.6 Pump-motor supervision: Dry running



Pump alarm
PuLEU

Command
YACE0100 / October 4, 2018
The SelfCheck Assistant monitors the Varioflex pump:
1. Alarm sounds as dual-tone signal for pump-motor overload or
blockage.
2. Display of
°C
3. The red LED
 Heater switches off on both poles,
 Pump and refrigerating unit are switched off electronically.
 Find the cause of the fault. Perhaps the viscosity of the heat
transfer liquid is too high or the pump is blocked.
 Press the Enter key.
 Also press this key if the unit has been switched off in the fault
state.
Pump-motor alarm!

Pump-motor alarm is shown in the display and signifies that
unlocking is only possible on the Master control panel.
The SelfCheck Assistant monitors the Varioflex pump:
1. Alarm sounds as dual-tone signal when the pump runs without
liquid. This can only occur when the float level measurement has
failed.
2. The display of
has detected a pump low level.
°C
3. The red LED
 Heater switches off on both poles,
 Pump and refrigerating unit are switched off electronically.
The cause of the failure of the level measurement with the floatation sensor must be
found and rectified. Perhaps it is blocked by foreign bodies in the bath.
 Press the Enter key.
 Also press this key if the unit has been switched off in the fault
state.
Alarm! Low level (pump)

Alarm! Low level (pump) is shown in the display and signifies
that unlocking is only possible on the Master control panel.
bL0C
signals blockage.
above the fault triangle
PuLEU
signals that the SelfCheck Assistant
above the fault triangle
Starting up
flashes.
flashes.
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