sy24inst2 - The Initiative Group

Rendamax
2.3 Examples of hydraulic Systems
The hydraulic systems shown are only examples. They must not be employed in practice without
professional analysis.
Figure 9 shows an example of an R300 unit with a bypass in a system with one heating circuit
only. As the bypass pump returns only a little quantity of flow water to the unit in case of a ∆T of
20°C the boiler resistance is hardly any higher then with a conventional unit without a bypass. The
choice of a system pump can be made according to the known boiler resistances.
Fig. 8
R300 Bypass - one heating circuit
An example of a system with more heating circuits is shown in figure 10. In this case the application
of an open header is not necessary, because it’s replaced by the bypass. Using a closed
header is to be advised. Application of a pump between the unit and the header is not necessary a
system pumps supply the required water flow through the unit.
Fig. 10
R300 Bypass - heating groups
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