Lauda MC 250, Operation Instructions Manual

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5. Switch on the device using the mains power switch.

A signal tone sounds. The software version is shown on the dis-
play. The actual temperature is shown on the display afterwards.
The constant temperature equipment starts operation; the pump
is started.
Depending on the specified setpoint temperature, the cooling
unit is started after 2 minutes at the earliest. The blue LED lights
if the cooling unit is active.
6. Switch on the device using the mains power switch.

A signal tone sounds. The software version is shown on the dis-
play. FILL is shown on the display afterwards. In the case of low
Level, the pump and the cooling unit are not started.
Fill the device with heat transfer liquid.
7. Carefully pull up the cover of the filler nozzle; do not turn.
8. Fill the heat transfer liquid into the filler nozzle carefully. Monitor the
level indicator. Fill the device up to the maximum fill level.
If necessary, use a funnel for the filling.
The level indicator must not be above the maximum fill level.
9. Press the Enter button when the fill level is at its maximum or suffi-
cient.

The pump starts. The actual temperature is shown on the display.
The fill level drops as the consumer is being filled.
10. Top up the heat transfer liquid carefully as the consumer is now being
filled. If the fill level drops too far, the device automatically goes into
the FILL mode and the pump and cooling unit are switched off. Con-
tinue with the filling until operation without problems is possible.
Monitor the level indicator for this.
11. Press the cover carefully into the filler nozzle.
5.4 Setting the pump pressure
For devices with a bypass (MC 600 and MC 1200), the pump pressure can
be set using a control valve on the rear side of the device. Individual setting of
the pump pressure is possible with this when using pressure-sensitive
external consumers.
Fill level sufficient
Fill level too low (Low Level)
Fill level drops
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