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loose parts in the heating water to avoid paralysation of
Before mounting of the boiler it is necessary to be regulation and safety function components,including the
installed supply electric cable with main switcher and pump.The boiler has to be installed in opened or closed
with over current circuit breaker including starting heating system according to the normative conditions
inspection revise and to have confirmed application for (overpressure of heating system,maximal volume of h.
electric power take-off. The boiler could be used for underfloor heating, minimal
Electric boilers are ranged in appliances continuously temperature of heating water is 30 °C. The boiler has not
connected to electric circuit of network voltage. In the fix equipped by the sensor of maximal temperature of
supply cable of the boiler there has to be in-built main heating water for underfloor heating.
switcher with distances of all disconnected cables min. 3
mm. The boiler is connected by corresponding cables to Using of defrost mixture
switch board X1 according to the diagram 1.7. Inlet of We don´t recommend to use defrost mixtures due to
cables through the cover of boiler is carried out with their characteristics, some of them are not convenient
bushing. The bushing PG21 is for main supply inlet of the for the boiler operation, concretely reducing of heat
boiler. Other bushings PG9 are for other signals room transmission, big volume elasticity, ageing, breakdowns
of rubber parts. It is necessary to think about to use them
thermostat, 3ways valve. inevitable. Regarding inevitable situation it is allowed to
use the defrost mixture Alicol Termo according to
Recommended size of circuit breaker and diameters of experience of the producer that the boiler operation is
conductors: not reducing.
If you are not able to use this defrost mixture and you will
protect your heating system with another defrost mixture
then guarantee claim will not be accepted.
3.6 Expansion vessel
Maximal diameter for switch board connection is
Installation
2
EK 10 mm . Expansion vessel is not assembled in the boiler, it is
necessary to use and mount it separately in the heating
system by professional company. Installation has to be
3.4.2 Installation of the room thermostat carried out on the suction inlet of the pump.
Connection of the room thermostat is necessary to do Dimension
with twin core cable with recommended diameter from Expansion vessel eliminates dilatability of heating
0, 5 to 1, 5 mm2 with length to 25 m. medium in the heating system; therefore it is necessary
The cable for the room thermostat is not allowed to be to choose its sufficient volume. Size of expansion vessel
placed in the same way with supply cord or another is specified by the project specialist of heating system
electric or industrial installation. Minimal separation is drawing. You can use for information about minimal
10 mm. volume of expansion vessel below mentioned curve.
The switch board for the room thermostat connection Curve is depended on temperature gradient 80/60°C a
(24 V) is placed in the left part of the control unit from there are 3 curves for pressures of cold heating system
front face and the second switchboard from the top 0,5, 1 and 2 bars. It is recommended to use the first
with marking TER, the room thermostat has clamps bigger volume of standard expansion vessel for
with bridge from the production. specification of minimal volume of expansion vessel.
Curves are valid on condition that you use safety valve
3.4.3 Installation of 3-ways valve for heating of set on 3 bars.
service utility water in the storage water
Connection of 3-ways is carried out according to the
diagram 1,7 to the switch board X2. The conductor of
service utility water signal 230 has to be minimally Cu
1mm2 thick. The cable of valve is an accessory = the
part of delivery.
3.5 Heating system
The pipe system of heating system has to be made to
avoid forming of air bubbles and to make easy the
process of deaeration. Dearation valves have to be
placed on each highest heating system place and on all
the radiators. We recommend making the heating pipe
from copper, but also it is possible to use steel or plastic
pipes determined for heating system. Plastic pipes have
to fulfil requests of heating resistance and have not to
15
Type of connection Size of circuit
breaker
Diameter of copper
cable in mm
Diameter of
aluminium cable in
mm
3x230/400 V 3x16 A 3x2,5 3x4
1x230 V 1x40 A 1x6 1x10
15


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