German pool crx9, Operating Instructions Manual, Page: 5 / 40

CRX 9
Venting
To prevent damage to the appliance, the instantaneous water heater must be vented before using it for the first time.
Each time it 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 appliance from the mains by removing the fuses.
2. Next, open and close the hot water tap valve several times until no more air emerges from the pipe and all air has
been eliminated from the water heater (approx. 1 minute).
3. Only then re-connect the power supply to the unit.
Save energy
Set precisely the required temperature on the appliance and only open the hot water tap. If the water is too hot, set a
lower temperature on the appliance instead of adding cold water. If you add cold water, the heated water is cooled
again and valuable energy will be lost. Moreover, the cold water added in the fitting cannot be controlled by the elec-
tronics and a constant temperature can no longer be guaranteed.
Maintenance and cleaning
• Plastic surfaces and fittings may only be wiped with a damp cloth. Never use abrasive cleaning agents or solvents.
• For a good water supply, the aerators and shower heads should be un screwed and cleaned or renewed at regular
intervals.
• The electrical and plumbing components should be inspected by an authorized professional at least every three years
to ensure proper functioning and operational safety at all times.
If the heater supplies two outlets, the water from the unit will be shared between the outlets. You should therefore only
use one outlet at a time in order to obtain a sufficient flow.
At high feed temperatures, the power is automatically switched off by the electronics in order to avoid producing exces-
sively hot water. This is indicated by the „Overheat“ lamp (1).
4. Operation instructions
GEFAHR
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