Lauda Alpha, Operating Instructions Manual

Page: 27 / 56

09/2020 j Alpha 27 / 54
7 Starting up
7.1 Connection to the supply
Compare the supply voltage with the data on the rating label (rearside on control head).

Connect the unit only to a grounded mains power socket (PE).
 No warranty when the thermostat is connected to a wrong supply!

Please make sure that your mains plug is equipped with at least the following safety fuses (

10).
Power supply Fuse protection
230 V~ 12 A
115 V~ 15 A
100 V~ 15 A

The start current of the refrigerating machine may exceed those currents distinctly for a short
time.

Without external circuit ensure that the pump pressure outflow is linked to the pump return.

Ensure that the unit is filled in accordance with Section (

6.2).

Note for electric installation on site:
The devices must be protected with a 16 ampere circuit breaker fitted during installation.
Exception: Devices with 13 ampere UK plugs.
7.2 Switching on

1 s

Switch on at the mains switch; an acoustic signal is
emitted for about one second.

Initial check of display and indicators; software version is shown
and the self-test becomes initiated.
 The current bath temperature is shown on the display.

 If necessary add more heat transfer liquid to replace
the amount pumped out to the external circuit.
Bath temperature
2 % 3
Self-test
8 8 8 8