Viadrus HERCULES U 22 BASIC, Руководство по эксплуатации и установке

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Every heat source in an open heat system must be connected with an open expansion tank positioned at the
highest point of the heat system. The expansion tanks must be rated in the way that they can contain the
changes in water volume resulting from heating and cooling.
The open expansion tanks must be equipped with non-closable bleeder and a overflow pipes. The overflow
pipe must be designed in the way that it safely drains off the maximum flow volume entering the system. This
can be achieved by rating the overflow pipes by one DN higher than that of the filling piping. The expansion
tanks and their connecting pipes must be designed and positioned in the way that freezing is reliably
inhibited.
Boiler drum installation
Fig. no. 7 Boiler drum installation
1. Position the boiler body on the supporting brickwork (bedding).
2. Insert sealing
∅
90 x 60 x 3 on the upper flange of the rear boiler section and mount the flange of
heating water. Pre-weld the flange to the heating water distribution system.
3. Insert sealing
∅
90 x 60 x 3 on the lower flange of the rear boiler section and mount the flange of return
water with a sleeve piece for water inlet valve and outlet valve. Pre-weld the flange to the heating water
distribution system.
4. After connecting the boiler to the heating system do screw an elbow with a water inlet valve and outlet
valve into the sleeve piece of the return water flange
5. Screw on G 1/2 " thermowell of thermostat in the hole in the upper rear boiler section (see Figure 7a).
Fig. no. 7a)
1 Check valve for
the manometer
2 Well of thermostat
1. Sealing
φ
90 x 60 x 3
2. Heating water flange
3. Washer10,5
4. Nut M10
5. Sealing
φ
90 x 60 x 3
6. Return water flange
7. Washer 10,5
8. Nut M10
9. Filling and draining cock