Design And General Heater Dimensions - Nibe DRAZICE TO-20 Operating And Installation Manual

Electric water heater
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1.3

DESIGN AND GENERAL HEATER DIMENSIONS

The heater tank is made of a steel plate and tested by 1.5 multiple of operation pressure value. The inner
surface of the tank is provided (except the stainless coil) with anticorrosion protection of enameled glaze.
In the bottom part of the tank there are wells for placing the heating, regulation and safety element of the
water heater (heating element with right thread G 5/4", thermostat sensor and thermal fuses).
A thermometer is installed in the top part of the heater that transmits information on heating the volume
of service water. The heater tank is provided with a highly valuable polyurethane insulation which ensures
minimum heat losses.
Electric wiring is placed in the bottom part of the heater, under an easily removable guard of the heater
(by loosening two screws on that guard). Temperature of water can be set by a thermostat within the range
between 0 °C and 74° C, using the symbols on the thermostat selector button Figure 1. Cold water inflow
is indicated with a blue ring, hot water outflow is indicated with a red ring. All steel parts are protected
against corrosion with paint and galvanic coating. To ensure anticorrosion protection, the heating element
head is provided with an anode rod that dissolves when the heater is in operation and has to be replaced
after 3 years of operation (depending on the aggressiveness of water).
Figure 1
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