Venting After Maintenance Work; Cleaning And Maintenance - clage DEX 12 Next L Gebrauchs- Und Montageanleitung

3. How to use
"LL": Operation lock
Secure your settings with a four-digit PIN. Use
firm with . The PIN entry follows. Use
entry with .
Setting options:
"no" No restrictions (factory setting).
"SE" No parameters can be changed in the service menu without a PIN.
"In" The service menu can only be opened with PIN.
"tr" The temperature can only be changed with the memory keys without PIN.
"tL" As "In", additionally the setpoint can only be changed with PIN.
"rE": Reset unit
All settings are reset to factory settings. Select the item "rE" and press and hold the
button until the countdown has reached zero.

Venting after maintenance work

This instantaneous water heater features an automatic air bubble protection to prevent
it from inadvertently running dry. Nevertheless, the appliance must be vented before
using it for the first time. Each time the appliance is emptied (e.g. after work on the
plumbing system, if there is a risk of frost or following repair work), the appliance must
be re-vented before it is used again.
1. Disconnect the instantaneous water heater from the mains (e.g. via deactivating
the fuses).
2. Unscrew the jet regulator on the outlet fitting and open the cold water tap valve to
rinse out the water pipe and avoid contaminating the appliance or the jet regulator.
3. Open and close the hot water tap until no more air emerges from the pipe and all
air has been eliminated from the water heater.
4. Only then should you re-connect the power supply again (e.g. via activating the
fuses) to the instantaneous water heater and screw the jet regulator back in.
5. The appliance activates the heater after approx. 10 seconds of continuous water
flow.

Cleaning and maintenance

• Plastic surfaces and fittings should only be wiped with a damp cloth. Do not use
abrasive or chlorine-based cleaning agents or solvents.
• For a good water supply, the outlet fittings (e.g. jet regulators and shower heads)
should be unscrewed and cleaned at regular intervals. Every three years, the electri-
cal and plumbing components should be inspected by an authorised professional in
order to ensure proper functioning and operational safety at all times.
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and to set the lock level and con-
and to select a PIN and confirm the
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