Viessmann SCU224 Manual de Serviço descarregar pdf (Página 20)

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SCU224

R1 R2

System layout 6

The controller calculates the temperature differences

between collector sensor S1 and tank sensors S2 and S3. If

the differences are larger than or identical to the adjusted

switch-on temperature differences (DT1O / DT2O), the

solar pumps will be operated by relay 1 and / or relay 2,

and the respective tank will be loaded until the switch-off

temperature differences (DT1F / DT2F) or the maximum

Arr 6

Tank 1

Tank 2

Display Channels

Channel Description Terminal Page

COL x Temperature collector S1 37

TST1 x Temperature tank 1 bottom S2 37

TST2 x Temperature tank 2 bottom S3 37

S4 x Temperature sensor 4 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

tank temperatures (S1MX / S2MX) are reached. The priority

logic causes priority loading of the selected tank (PRIO), if

possible. Loading both tanks simultaneously is possible as

well (PRIO = 0).

Sensor S4 can optionally be connected for measurement

purposes.

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Viessmann SCU224 Manual de Serviço Página 20