Diagram 16
9
Diagram 16:
Solar power system with 3 consumers and feed pump function.
Sensors
Outputs
T1…. Collector
A1…. Solar pump tank TK1
T2…. Tank 1 bottom
A2…. Solar pump buffer TK2
T3…. Tank 2 bottom
A3…. Solar pump pool TK3
T4…. Tank 3 (pool)
A4…. Feed pump
T5…. Tank 1 top
T6…. Tank 2 bottom
Program 16:
Function according to diagram
A1 = T1 > (T2 + diff1) & T1 > min1 & T2 < max1
A2 = T1 > (T3 + diff2) & T1 > min1 & T3 < max2
A3 = T1 > (T4 + diff3) & T1 > min1 & T4 < max3
A4 = T6 > (T5 + diff4) & T6 > min2 & T5 < max4
T1 T6
min1 min2
diff1 diff3 diff4
A1 A3 A4
diff2
A2
T2 T3 T4 T5
max1 max2 max3 max4
Required settings:
diff1
…coll. T1 – TK1 T2
A1
diff2
…coll. T1 – TK2 T3
A2
diff3
…coll. T1 – TK3 T4
A3
diff4
…TK2 T6 – TK1 T5
A4
min1
switch-on temp. coll. T1
A1
,
A2
,
A3
min2
…switch-on temp. TK2 T6
A4
max1
…limit TK1 T2
A1
max2
…limit TK2 T3
A2
max3
…limit TK3 T4
A3
max4
…limit TK1 T5
A4
Additional
: Priority
Vorr
:
(typical: A11, A22, A33, A40)
TK1
TK2
TK3