Technische Alternative UVR63 - Program 528 - 2 Independent Differential Loops and Independent Burner Requirement

47
S3S1
S4
A2
A3
S5
S6
S2
A1
TK1 TK2 TK3
Program 528 - 2 independent differential loops and independent burner requirement
Program 528: Pump A1 runs when:
 S1 is greater than the threshold min1  and S1 is greater than S2 by the difference diff1
 and S2 has not exceeded the threshold max1.
Feed pump A2 runs when:
 S3 is greater than the threshold min2  and S3 is greater than S4 by the difference diff2
 and S4 has not exceeded the threshold max2.
Output A3 switches on when S6 falls below threshold min3.
Output
A3 switches off (dominant) when S5 exceeds max3.
A1 = S1 > (S2 + diff1) & S1 > min1 & S2 < max1
A2 = S3 > (S4 + diff2) & S3 > min2 & S4 < max2
A3 (on) = S6 < min3 A3 (off) = S5 > max3
All programs +1: The burner requirement (A3) only occurs via sensor S6
A3 (on) = S6 < min3 A3 (off) = S6 > max3 (dominant)
Required settings:
max1 … limit TK1 S2  A1
max2
… limit TK2 S4  A2
max3 … burner req. off TK3 S5  A3
min1 … switch-on temp. coll.1 S1  A1
min2 … switch-on temp. coll.2 S3  A2
min3 … burner req. on TK3 S6  A3
diff1 … coll.1 S1 – TK1 S2  A1
diff2 … coll.2 S3 – TK2 S4  A2
S1 S3
min1 min2
S2 S4
max1 max2
diff2
A2
diff1
A1
Burner
A3
S6 min3
S5 max3