Buderus RC30 Provozní pokyny stáhnout pdf (Strana 5)

What you should know about your heating system 2

We reserve the right to make any changes due to technical modifications.

Operating instructions RC30 programmable room thermostat • Issue 02/2006

2 What you should know about your heating system

2.1 How does the RC30 work?

The RC30 ensures comfortable heat and economical consumption

of fuel and electricity. It switches the boiler and pumps ON if DHW

(domestic hot water) or a higher room temperature are required.

Modern heating control units calculate the temperature required

within the boiler (the so-called flow temperature) subject to the

outside temperature and the desired room temperature (set

temperature). The relationship between the outside temperature

and the flow temperature is described as the heating curve. The

lower the outside temperature, the higher the flow temperature

must be to achieve the required room temperature.

For example, if you increase the set room temperature by 2 °C, the

heating curve is raised in parallel. This increases the flow

temperature by around 6 Kelvin (one Kelvin corresponds to one

degree Celsius).

The gradient of the heating curve depends on the type of heating

system (e.g. radiators or underfloor heating). This will be

determined by your installer during the commissioning process.

Fig. 1 Heating curve (example), before (1) and after (2) increasing the

set room temperature by 2 °C

Outside temperature in °C

Flow temperature in °C

1 2 3 4 5 6 7 8 9 10 ... 87 88

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Buderus RC30 Provozní pokyny Strana 5