Reinstallation; Shower Application; Lock Level - clage CEX9-U ELECTRONIC MPS Montageanleitung Für Den Fachhandwerker

7. Initial operation

Reinstallation

In case the appliance will be commis sioned again under different installation condi-
tions than during its initial ope ration, it may be necessary to adapt the maximum
power rating. A temporary short-circuit of the two pins, e.g. with a screwdriver acc. to
EN 60900 (see figure), will reset all heater para meters to works setting and lock the
heating.
Value "88" flashes in the display until the maximum power rating has been selected.
This condition will maintain when activating and deactivating the supply voltage.

Shower application

The water heater's temperature must be limited to 55 °C, if it is connected to a shower.
The service menu parameter "Temperature Limit" ("tL") must be set to a value less or
equal 55 °C, in consultation with the customer and the lock level must be activated.
When the device is operated with preheated water, it must be ensured that this tem-
perature is limited to 55 °C as well.

Lock level

The operating mode of the appliance can be restricted. The service menu can be used
to configure the appliance.
Activation of the lock level
1. Set required lock level in the service menu (refer to chapter "Service menu" in this
installing instructions).
2. Disconnect the appliance from the power supply (e.g. by switching off the fuses).
3. Move the jumper on the power electronics from pin 2 to pin 1 (see figure).
4. Put the appliance into operation again.
Deactivation of the lock level
1. Disconnect the appliance from the power supply (e.g. by switching off the fuses).
2. Move jumper from pin 1 to pin 2.
3. Put the appliance into operation again
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