Technische Alternative UVR63 - Page 44

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Program 481:
Feed pump
A3 runs if:
 S1 is greater than threshold min1  and S1 is higher than S4 by the difference diff3
 and S4 has not exceeded threshold max3
or
 S3 is greater than threshold min2  and S3 is higher than S4 by the difference diff3
 and S4 has not exceeded threshold max3.
or
 S5 is greater than threshold min3  and S5 is higher than S4 by the difference diff3

and S4 has not exceeded threshold max3.
A3 = (S1 > (S4 + diff3) & S1 > min & S4 < max3)
or (S3 > (S4 + diff3) & S3 > min2 & S4 < max3)
or (S5 > (S4 + diff3) & S5 > min3 & S4 < max3)
S1 S3
min1 min2
S2
max1
max2
S1 S3 S5
min1 min2 min3
S4
max3
diff2
A2
diff1
A1
diff3
A3
Required settings:
max1 … limit TK1 S2  A1
max2 … limit TK1 S2  A2
max3 … limit TK2 S4  A3
min1 … switch-on. t. heat source S1  A1, A3
min2 … switch-on temp. boiler S3  A2, A3
min3 … switch-on. temp. TK1S5  A3
diff1 … heat source S1 – TK1 S2  A1
diff2 … boiler S3 – TK1 S2  A2
diff3 … heat source S1 – TK2 S4  A3
boiler S3 – TK2 S4  A3
TK1
S5 – TK2 S4  A3
diff3
A3
diff3
A3