Bedienungsanleitung Benekov R100 (Seite 19 von 32) (Englisch)

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7401:1992 and if the hardness of the water doesn’t conform to this standard the water must be

treated. Even repeated warming of water with higher water hardness doesn’t improve its quality and

doesn’t prevent appearance of salts on the surface of the heat-exchanger. A calc layer of 1 mm

reduces the exchange of heat by approximately 10%.

Heating systems with open expansion tank enable direct contact of the heating water with the

atmosphere. During the heating season the water in this open expansion tank absorbs the oxygen

which subsequently supports the corrosive effect and at the same time the vaporisation of the heating

water increases. To make up for a loss of water, it is recommended to use treated water acc. to the

standard ČSN 07 7401:1992. Moreover, it is important to rinse the system to wash away all

impurities.

During the heating period it is important to keep a constant volume of water in the heating system.

When the heating system has to be refilled with water, it is necessary to take care that no air enters

the system. The water from the boiler and from the heating system mustn’t be used for any other

purpose and it is recommended not to discharge the water from the system without a serious reason

(repairs etc.). Draining the water and filling the system with new water increases the risk of corrosion

and formation of scale.

Water may be refilled only when the boiler is cool. This prevents damage to the steel heat-

exchanger.

b) make sure that the heating system does not leak

c) connection to the chimney – must be approved by a chimney service company

d) connection to the electrical power network

The sockets should be connected with the earthing contact at the top and the phase wire on the left

side (front view). The same applies to double sockets.

Installation and stoking test must be recorded in the certificate of warranty.

6.5. Boiler startup

1. If the boiler is equipped with the fire extinguishing device with paraffin plug, fill its tank with water.

2. If the boiler is equipped with fire extinguishing device with thermostatic valve and pressure tank,

proceed as follows to put the system in operation:

a) remove the black plastic cap from the valve on the bottom of the pressure bottle

b) by means of a compressor or an air pump, pressurize the pressure bottle to 0,5 bar

c) screw the black plastic cap back onto the valve on the bottom of the pressure bottle

d) connect the fire extinguishing system to the water supply system

3. Heat up in the boiler.

4. Bring the boiler to the working temperature. The recommended working temperature of the output

water is 65–80°C.

5. Check again the tightness of the boiler.

6. Carry out the stoking test according to the appropriate norms (see Certificate of warranty)

7. Inform the user about the boiler attendance - see chapter 7.

8. Make a record in the Certificate of warranty.

7. Attendance by the user

7.1. Heating up in the boiler

1) Check the quantity of water in the heating system.

2) Check that the stop valves between the boiler and the heating system are opened.

3) Check that the water circulating pump is working correctly.

4) Clean the burner and the bottom of the combustion chamber.

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