Description Of Heating System Scheme Operation - Stropuva S7 Installation And Maintenance Manual

6.2. DESCRIPTION OF HEATING SYSTEM SCHEME OPERATION

The pump (P) pumps the water out of the heating elements and pushes it through the boiler into
the heating elements (see scheme 6.1.). Through balance faucet (bk l) the heated water flows into the
nearest radiator, which can operate in a self-flowing manner to protect the boiler from overheating
(radiator without a thermo valve) in case the power went off.
Hereafter the heated water flows through the non solid fuel boiler 2k (if such is available), which
turns on as the boiler 1k stops burning or turns off when the boiler 1k is supplying the hot water
thanks to internal automatics. If the boiler 2k is available the bolt (3) is turned off, if it is not – the bolt
is turned on.
Hereafter the heated water flows through the water heater (B) and the bolt (3). If the heater input
is of a sufficient diameter, the bolt (3) is turned off – as the water flows only through the heater, more
water is heated. After it has heated the domestic water, the thermofication water flows into the ratiator
systems and through the thermostatic valve (T2-20-50) if required and gets into the floor heating
system. The thermostatic valve sensor opens the valve up if the water is colder than indicated (35°C)
and closes it if the water is warmer.
Thanks to the pump (P) the water abundantly circulates through the floor heating coil pipes (F) and
also flows into the boiler through theflow distribution valve (T-3-20-50), which, due to the sensor,
directs a part of the colder flow into the radiatior system as the returning flow is warmer that indicated
(40°), maintaining a stable premise warmth even if no thermo valves are available and protecting the
floor from overheating. (bk2) and (bk3) are the closure valves (not the faucet with spherical rotating
closure) or more improved flow determination valves, through which the pump flow is distributed in
such manner that it would be sufficient enough for floor heating and appropriate for the pump. Overall
flow amount depends on the circulation pump and might be controled by switching the pump speed
positions.
If the system do not has floor heating T2, it is not necessary to install the thermostat during the
summer. Creating a solid fuel boiler for heating boiler, radiator and floor manifold close and open the
T2 from the unscrew the cap or removing the thermostat.
A circulation pump with the power of 25 – 60 W is enough for a 10kW boiler, 40 - 80 W for a 20
kW boiler and 50 – 100 W for a 40 kW boiler. (bk1) - a balance faucet of a safety auto flow radiator,
through which the flow is determined to make the radiator reversible pipe 40°C cooler than the
infusion pipe. (7) - collapsible connectors – by releasing them the node may be reversed to another side
of the boiler.
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