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2 OPERATION AND FITTING INSTRUCTIONS
OPERATING CONDITIONS
The tank shall only be used in accordance with the conditions specified on the power plate
and in instructions for electric wiring. Besides the legally acknowledged national regulations
and standards, also conditions for connection defined in the local electric and water works have
to be adhered to, as well as the installation and operation manual. The cold water inlet of each
individually closable heater must be fitted with a seal, test tap or plug to check the non-return
valve, as well as a non-return valve and safety valve. Heaters with a volume of more than 200
liters must also be fitted with a pressure gauge.
The room, in which the appliance will be operated, must be frost-free. The appliance has to be
mounted at a convenient place; it means that the appliance must be easily available for potential
necessary maintenance, repair or replacement, as the case may be.
We emphasize that the tank shall not be connected to power supply if flammable liquids
(gasoline, stain cleaner) or gases, etc., are handled in its proximity.
If water is strongly calcareous we recommend that any of the common decalcifying devices was
installed with the appliance, or that the thermostat was set to the minimum operating
temperature of 55 °C (setting to position „OPTIMUM") - Figure 21. For proper operation,
drinkable water of adequate quality shall be used. To avoid potential sediments, we recommend
that the device was installed together with a water filter.
WALL MOUNTING
Prior to mounting, check the loading capacity of the wall and depending on the type of masonry,
choose a suitable anchorage material, or reinforce the wall, if needed. The NTR/Z water heater
shall only be mounted in vertical position so that the lower edge of the tank was placed at least
600 mm above the floor. In combined tanks, elbows have to be attached to the heating water
inlet and outlet and, by turning them, the mounting either from the right or from the left has to
be determined (Figure 17). With regard to various types of bearing masonry and wide range of
special anchorage material available at the market, we do not provide the tanks with that
material. The anchorage system has to be selected individually, depending on the conditions.
We recommend an authorized company perform mounting on the wall and anchorage or discuss
the anchorage with a professional.
If hot water tank is mounted in a tight, smaller space, or in an intermediate ceiling, etc., you
have to make sure that the connecting side of the appliance (connections to water supply, area
for electric plugging) remained accessible and no heat accumulation occurs. Free space of up to
600 mm from the bottom edge of the tank has to be available under the tank.
- 17 -
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