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2 OPERATION AND FITTING INSTRUCTIONS
2.1 OPERATING CONDITIONS
The tank shall only be used in accordance with the conditions specified on the performance
plate and in instructions for electric wiring. Besides legally acknowledged national
regulations and standards, also conditions for connection defined in local electric and water
works have to be adhered to, as well as the installation and operation manual. 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
(benzine, 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 60
o
C. 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.
2.2 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. The OKCV NTR water heater shall only be
mounted in horizontal position so that from the front view, the right edge of the tank was
placed at least 600 mm from the opposite wall. 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 9). 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 authorised 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.
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