Austria Email KRO, Инструкция по эксплуатации

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7
The water heater must be filled with water prior to electrical connection. During the first
filling, open the hot water inlet of the mixed tap. The water heater is full when bubble-free
water flows out of the outflow pipe of the mixed tap.
If the unit is operated without water,
the heater fuse will be damaged during the first use and the water heater will not
work.
The first start-up as well as the first heating process is to be monitored by an expert!