Viessmann SCU224 Manual de Serviço descarregar pdf (Página 24)

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SCU224

System layout 8

The controller calculates the temperature difference bet-

ween collector sensor S1 and tank sensor S2. If the diffe-

rence is larger than or identical to the adjusted switch-on

temperature difference (DT O), the solar pump will be

operated by relay 1, and the tank will be loaded until the

switch-off temperature difference (DT F) or the maximum

tank temperature (S MX) is reached.

Arr 8

Display Channels

Channel Description Terminal Page

INIT

ODB initialization active - 37

FLL

ODB ﬁlling time active - 37

STAB

ODB stabilization in progress - 37

COL x Temperature collector S1 37

TSTB x Temperature tank 1 bottom S2 37

TSTT x Temperature tank 1 at the top S3 37

TSFB x Temperature solid fuel boiler S4 37

n1 % x Pump speed R1 R1 38

n2 % x Pump speed R2 R2 38

h P1 x Operating hours R1 R1 38

h P2 x Operating hours R2 R2 38

TIME x Time - 34

A solid fuel boiler will be operated by relay 2, if the tempera-

ture difference between sensors S4 and S3 is larger than or

identical to the adjusted switch-on temperature difference

(DT3O), until the adjusted minimum (MN3O) and maximum

(MX3O) temperature thresholds of the fuel boiler and the

tank are reached.

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Viessmann SCU224 Manual de Serviço Página 24