Viessmann SCU345 Manual page 40

7. Valve logic:
Î Adjust the valve variant of the 3-port valves
8. Maximum tank temperature:
Î Adjust the maximum tank temperature
In 3-tank systems, the adjustment has to be car-
ried out for S2MAX and S3MAX as well.
9. Loading tank 2 and tank 3
Î Switch on or off the "loading tank 2" / "loading
tank 3" option.
10. Pump control type:
Î Adjust the type of pump control for PUMP1.
Carry out this adjustment for PUMP2, PUMP3
if needed.
11. Minimum speed:
Î Adjust the minimum speed of the pump PUMP1.
For systems with 3 pumps, the adjustments must
also be carried out for PUMP2, PUMP3
12. Maximum speed:
Î Adjust the maximum speed of the pump PUMP1.
For systems with 2 or 3 pumps, the adjustments
must also be made for PUMP2, PUMP3.
Î Complete the commissioning menu by
pressing button 5:
The controller is then ready for operation and nor-
mally the factory settings will give close to optimum
operation.
40
Note
The valve variant can only be adjusted in
systems with two 3-port valves (ARR 5,7,9).
Note
"Loading tank 3" can only be adjusted if a
3-tank system or vertical tank loading has
been selected in the sub-channel ARR.
Note
The minimum speed can only be adjusted if
burst control (PULS) or speed control via
an adapter (ADAP) has been selected in the
sub-channel PUMP1,2,3.
Note
The maximum speed can only be adjusted
if burst control (PULS) or speed control via
an adapter (ADAP) has been selected in the
sub-channel PUMP1,2,3.