Viadrus Hercules P 1, Руководство по эксплуатации и установке

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Usage
The two way safety valve DBV 1 – 02 is used as a protection of heating boilers against overheating. In the
valve body there is the drain and filling valve controlled by a thermostatic member. When the limit
temperature is reached both the drain and filling valve are opened which means that cold water is flowing
into boiler and the hot water is discharged. When the temperature drops below limit, both the drain and filling
valve are closed simultaneously.
Caution! It is not a compensation for safety valve
In case the two-way safety equipment is signalling that boiler has been filled with the water which
does not meet the
Č
SN 077401 requirements it is necessary to treat the water in the system so that it
again meets this standard requirements.
1 – Boiler
2 – Two-way safety valve DBV 1 – 02
3 – Safety valve
4 – Reduction valve
5 – Filter
6 – Ball valve 7 – Pump
8 – Outlet of of excess heat
9 – Drain valve
I – Cold water input
II – Heating water output
III – Return water input
Fig.no. 15 Recommended diagram of connection of two-way safety valve DBV 1 - 02
Installation
The installation can be only carried out by a qualified person. For the correct operation of the thermostatic
two-way safety valve it is necessary to comply with the conditions stipulated for its installation and observe
the flow directions indicated on its body. The safety valve is alway mounted in the output pipe of boiler or
directly on the upper part of boiler where the hot water leaves boiler and is transported into heating system.
When installing the valve it is necessary to check whether the use of the 3/4“ sleeve, which can be both in
pipeline and on boiler ensures a complete immersion of the thermostatic member of valve after the valve
installation. After the installation in the sleeve the waste piping will be connected in the point “C" (see. fig.
No. 14) and it leads the hot water from boiler into the sewer. In point "A" (see. fig. No.14) there the cooling
water inlet is connected (Fig. no.15) and this water will ensure cooling of oiler after setting the valve into
operation.At the cooling water inlet there must be installed the filter for capture of mechanical impurities. In
the point “B” (see Fig. no.14) there is connected the piping which according to Fig. no.15 is led into the return
pipe of heating system near the boiler.
Regular maintenance
Once a year it is necessary to turn the head of the safety valve to remove possible impurities settled in the
valve. Clean the filter in the inlet of cooling water.
Important
It is not possible to turn the flows and that’s why it is important to observe markings of filling and draining as
indicated on the valve.