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Product description
EN
180-2 DN 25 RTA / 180-3 DN 25 RTA
When the opening temperature is reached (for example, 55 °C), the circuit to
the consumer (return storage
A
) is opened proportionally and the bypass (
B
)
is reduced accordingly.
The boiler temperature increases and heat is provided to the consumer; how-
ever, the return temperature will not fall below the set temperature.
During further operation, the temperature increases until the condensation
protection valve is fully open (return storage
A
). The bypass (
B
) is closed cor-
respondingly. If the inlet temperature (return storage
A
) drops to approx
10 °C above the set opening temperature (for example, 65 °C), the admixture
via the bypass (
B
) is increased proportionally and outlet "
A
" is closed propor-
tionally.
Fig. 5: Transition phase when opening temperature is reached
Fig. 6: Regular operation
A
B
A
B
