Bedienungsanleitung ATTACK Electric Easy (Seite 16 von 28) (Englisch)

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water in time of reaching of maximal temperature of

Filling overpressure of expansion vessel heating water.

It is necessary to observe overpressure of nitrium filling

for right function of expansion vessel in cold status of 3.8 Circle pump

heating system according to formula:

Pex = 1,2*Pov (pressure of expansion vessel = The boiler has circle pump with 3 output grades.

†

1,2*pressure of heating water The pump operation is controlled by control unit

†

Overpressure changes of nitrium filling of depended on boiler regulation and safety requests.

expansion vessel could be carried out only by The pump operation is controlled by control unit

†

responsible persons or professional companies. depended on boiler regulation and safety requests.

Time running out of the pump make possible to take

†

away heat accumulated in the boiler body in time of

†User has obligation to assure minimally 1 x per year to switching off the boiler. The effect is decreasing of

operation control and 1x per 9 years pressure control losses, removing of temperature tops, reducing of

built-in expansion vessel or additional independent stone and elongation of boiler life time.

expansion vessel. Time running out of the pump is preset from the

†

production facility according to the point 2.4

Minimal overpressure of heating water

Value of minimal pressure is stated in the table 1.5. The pump is protected against blocking in operation

†

Minimal overpressure has to be signed on the thermo mode Stand-by. (see the chapter Protection

manometer scale by person putting the boiler into functions). If the boiler is for longer time out of its

operation. The overpressure has not to degrease under operation switched off, we recommend you to switch

position marked on the scale. It is necessary sometimes on the boiler sometimes, minimally 1x per month (see

to control and if it is necessary to fulfil filling the chapter protection of function).

overpressure of heating water.

Electric data of the pump

Filling overpressure of heating water

Normally it is observed in case of first filling of heating

system or in case of filling of minimal overpressure fall of

heating water. Filling overpressure is + 0,2 bar higher

than minimal overpressure specified for reason that

temperature off filling water could be to 20°C (water

dilatability).

3.7 Marking of working scale

On the pressure meter placed under the boiler there is

necessary to mark working scale that the pointer of P1 -pump input

pressure meter is moving in. Minimal pressure is marked I - electric current

by responsible person put the boiler into operation by

pressure meter marking.

Maximal margin = maximal overpressure of heating

Curves

40 60 80 100 120 140 160 180 200

Minimal volume of expansion vessel

Volume of heating system

Dependency of expansion vessel volume and volume of heating system for temperature gradient 80/60°C

Heating system pressure 2 bars Heating system pressure 1 bar

Heating system pressure 0, 5 bar.

Output

grade P (W)

1I (A)

1 50 0,22

2 60 0,27

3 70 0,31

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