15
4.7.
DESCRIPTION OF SCHEME OPERATION WITHOUT ADDITIONAL BOILER AND
FLOOR HEATING
The pump (P) pumps the water out of the heating elements and pushes it through the boiler into the
heating elements (see figure 4.4.). 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 the heating domestic water, thermofication water flows to the radiator system.
Thanks to the pump (P) the water abundantly circulates through the flow 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°C), colder part of the flow refers to the radiator system, and maintained
a stable indoor heat, even in the absence of thermovalves.
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.
(bk-1) - 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.