Drazice OKC 100 NTR Operation And Installation Manual - Page 11

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Drazice OKC 100 NTR Operation And Installation Manual

2.4 ELECTRIC INSTALLATION

2.4.1 ELECTRIC INSTALLATION GENERAL INFORMATION

•
The electric wiring scheme is attached to the water heater on the side of the electric
installation guard (figure 4).
•
Connection, repairs, and wiring inspections may only be implemented by a company
(person) authorised to such activity.
•
Expert connection must be confirmed on the warranty certificate.
•
The heater is connected to the 230 V/50 Hz electrical network using a fixed moving
conductor with a switch that turns off all network poles and the circuit breaker
(protector).
•
Installations in bathrooms, laundry rooms, rest rooms and showers, must be
in compliance with standard.
•
The degree of protection of electric parts of the heater is IP 45.
•
Adhere to the protection against electric shock injury according to standard.

2.5 CONNECTION OF INDIRECT HEATER TO HOT WATER SYSTEM

a) Water heating by electric energy
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 thus 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. In combined versions,
Figure 4
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