Drazice OKC 125 NTR Operation And Installation Manual - Page 19

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Drazice OKC 125 NTR Operation And Installation Manual
To limit regulation
off the thermostat knob (it will be tough at first) and you will find two cylindrical pins Ø2,15mm on
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the back side of the knob
pull off one pin and insert it to the corresponding hole of the selected maximum temperature.
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put the knob back on (to the stop).
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To block the setting
set the selected temperature pull off the thermostat knob without changing the setting, there are
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two pins on the back side of the knob
Pull off both of them and fit them to the holes corresponding with the selected temperature so that
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the gap between the pins was without a hole, and the position was opposite the set temperature.

4 IMPORTANT NOTICES

4.1 INSTALLATION REGULATIONS

Without a confirmation of performed electrical installation issued by an authorised company, the
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warranty certificate shall be void.
Check and exchange the Mg anode regularly.
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You have to apply for approval of a local power supplier to connect the heater.
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No stop valves can be put between the heater and the safety valve.
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If the overpressure in the water main exceeds 0.48 MPa, a pressure control valve must be mounted
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before the safety valve.
All hot water outputs must have a combination faucet.
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Before filling the heater with water for the first time, it is recommended to fasten the flange
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connection nuts of the tank.
It is not allowed to handle the thermostat, aside from temperature resetting with a control button.
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All electric installation handling, adjustment and replacement of the regulation elements shall only
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be performed by an authorised service company.
The thermal fuse must not be turned off! In case of thermostat defect, the thermal fuse interrupts
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electric power input to the heating element if the water temperature in the heater exceeds 90 °C.
As an exception, the thermal fuse may also switch off due to water overheating caused by
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overheating the hot water heating system boiler (in case of a combined heater).
We recommend you operate the heater with one type of energy.
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Both the electric and water installation must follow and meet the requirements and
regulations relevant in the country of use!
Figure 9
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