Diagram A0
27
All Pr1
: Instead of the two solar pumps, one pump and a three-way valve are used
(pump-valve system). The speed control (if activated) only operated when filling
TK 1
(
T3
).
A1
... common pump
A2
... Valve (A2/S receives power when filling tank
TK2
)
All Pr2:
Output
A4
is used for burner requirement with separated on and off
thresholds instead of feed pump function.
A1 = T1 > (T3 + diff1) & T3 < max1
A2 = T1 > (T4 + diff2) & T4 < max2
A3 = T6 > (T2 + diff3) & T6 > min2 & T2 < max3
A4 (on) = T6 < min1 A4 (off) = T5 > max4
Program A4:
The feed pump function of output
A4
is active between boiler
T5
and tank 1
T2
.
A1 = T1 > (T3 + diff1) & T3 < max1
A2 = T1 > (T4 + diff2) & T4 < max2
A3 = T6 > (T2 + diff3) & T6 > min2 & T2 < max3
A4 = T5 > (T2 & diff4) & T5 > min1 & T2 < max4
Program A6:
Burner requirement
A4
(on), when
T5
<
min1
Burner requirement
A4
(off), when
T2
>
max4
A1 = T1 > (T3 + diff1) & T3 < max1
A2 = T1 > (T4 + diff2) & T4 < max2
A3 = T6 > (T2 + diff3) & T6 > min2 & T2 < max3
A4
(on)
=
T5
<
min1 A4 (off) = T2 > max4
T1 T6
min2
diff1 diff2
diff3
A1 A2 A3
T3 T4 T2
max1 max2 max3
Required settings:
diff1
…coll. T1 – TK1 T3
A1
diff2
…coll. T1 – TK2 T4
A2
diff3
…TK2 T6 – TK1 T2
A3
min1
…burner requ. ON T6
A4
min2
…switch-on temp. TK2 T6
A3
max1
…limit TK1 T3
A1
max2
…limit TK2 T4
A2
max3
…limit TK1 T2
A3
max4
…burner requ. OFF T5
A4
Additional
: Priority
Vorr
:
(typical: A11, A22, A30, A40)
Burner A4
T6 min1
T5 max4