Wolf FB363 Instruções de Operação descarregar pdf (Página 46)

3062449_030946

Start enabling/start blocking for the lead boiler:

- Start enabling:

Boiler temperature, lead boiler >

actual header temperature + hysteresis, modulation stop

- Start enabling:

Boiler temperature, lead boiler <

actual header temperature + 5 K

Hysteresis modulation stop KM 20 adjustable from 10 K to 50 K.

Blocking/Enabling I portion, overall modulation:

- Blocking I portion:

Boiler water temperature

actual header temperature + hysteresis, modulation stop

- Enabling I portion:

Boiler water temperature

actual header temperature + 5 K

Boiler that was started last.

Note: The "Cascade controller stop" function should only

be enable if no cylinder is connected to boiler with address 1.

For systems without low loss header, e.g. systems that

are operated on the inlet side, also enable the "Pump control,

lead boiler" function.

KM 21 Forced output for

cylinder heating

and

KM22 Parallel mode

hysteresis

For systems where the overall output of all boilers was not

sized for peak loads in parallel operation of central and DHW

heating, there remains the possibility that the required

set header temperature is not achieved during cylinder heating

at peak load times. To prevent this, the energy supply to the

mixer circuits is reduced via forced output. The following

conditions must be met for "Cylinder priority in parallel mode":

a) Parameter KM 21 = 1 ⇒

"Forced output during cylinder heating" function enabled

b) and parameter "Contractor/System" A10 = 1 ⇒

parallel mode "ON";

c) and all boilers of the cascade operational

d) and overall modulation level = 100%

e) and cylinder heating at the cascade module

(KM 01 = 1 or 10) enabled

Parameters / Function description

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Wolf FB363 Instruções de Operação Página 46

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