Drazice OKHE ONE 50 Instrukcja obsługi i instalacji - Strona 12
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2.5 OPERATION
After the heater is connected to electric network, the heating element starts heating water. The element is
turned on and off by a thermostat. After reaching the temperature set, the thermostat switches off the
electric circuit and discontinues water heating. The control light signals if the element is in operation (light
is on) or if it is off (the light goes out). In case of longer operation without using the heated volume, the
thermostat has to be set to position 5°C to 8°C (set the "snowflake" symbol on the thermostat selector) to
avoid its freezing, or electricity supply to the heater has to be switched off.
2.6 FIRST COMMISSIONING
Before opening the power supply, the tank must be filled with water. The process of first
heating must be executed by licensed professional who has to check it. Both the hot water
outlet pipe and safety armature parts may be hot.
should be roughly equal. After connecting the heater to the water main and electrical power
system, and after checking the safety valve (following the instructions attached to the valve),
the heater can be put into operation.
Before fist putting into service or after a longer shutdown the appliance has to be rinsed out
and flushed yet before heating is activated. Before heating starts, the tank must be completely
filled with water and the system properly flushed and vented. First heating of the tank has to
be watched.
During the heating process the pressurised connection water that increases its
volume due to heating must drip off the safety valve. In non-pressurised
connection water drips off the overflow combination faucet. When heating is
finished, the set temperature and the actual temperature of consumed water
Figure 7
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