Connecting BIAWAR Oskar OP-5 Flow Water Heater with 2-Wire Installation: PE, N, and L Cables

Hello :)

I connect such a flow water heater:
BIAWAR Oskar OP-5

I have 3 cable outputs on it:

PE
N
L.

now at home I have a 2-wire installation (old)
How do I connect the plug. PE I know it is a protective one, and this one will be connected to the pin in the plug, now N or L is to be shorted with the phase in the socket, because I have "0" in the socket, of course, and the bolt together.

Sorry, but probably a totally trivial question, but I don't want to fap.

greetings
Lateralus

Moderated By skryn:

I moved from home appliances.

Hello. N and PE wire in the socket. Bridge from PE to N, phase separate. Regards.

Hello

In this case, if you do not have a separate protective conductor, connect as follows:
- "phase" -> L;
- "zero" -> N;
- bridge between N and PE.
Remember that in this case the connection must be permanent in order not to accidentally change "phase" to "zero", because the full mains voltage will appear on the housing of the device.
Write down whether the heater has a connection in the form of a plug on the cable or a terminal strip inside.

greetings

Terminal strip, inside the heater, and lead out the cable and plug. And I just noticed that my electricians did not connect the pin to the zero (they did not make a bridge) specs.