30
S6
A3
S4
S2
A1
S5
A2
A1
S1
Program 320 - layered cylinder and load pump
Layered system only effective with speed control activated.
(Absolute value control system: AC N1)
Program 320: Solar pumps A1 run 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.
The three-way valve A2 switches up when:
S5 is greater than the threshold min2 or S5 is greater than S4 by the difference diff2
and S4 has not exceeded the threshold max2.
The feed pump A3 runs when:
S6 is greater than the threshold min3 and S6 is greater than S2 by the difference diff3
and S2 has not exceeded the threshold max3.
A1 = S1 > (S2 + diff1) & S1 > min1 & S2 < max1
A2 = (S5 > min2 or S5 > (S4 + diff2)) & S4 < max2
A3 = S6 > (S2 + diff3) & S6 > min3 & S2 < max3
All programs +1: If S4 has reached max2, the quick warm-up phase has been completed,
and the speed control is thus blocked
optimal efficiency.
If PSC (pump speed control) is activated, the speed level is set to the maximum level, if
control output 1 is activated; the analog level for the maximum speed is output. Control
output 2 is not changed and continues control.
All programs +8 (independent load pump A3): the pump A3 runs when:
S6 is greater than threshold min3 and S6 is greater than S3 by the difference diff3
and S3 has not exceeded threshold max3.
A3 = S6 > (S3 + diff3) & S6 > min3 & S3 < max3
S1 S6 S5 S5
min1 min3 <min2 >min2
A2
S2 S4 S4
max1 max2 max2
max3
diff3
A3
diff1
A1
diff2
A2
Required settings:
max1 … limit CYL S2 A1
max2 … limit CYL S4 A2
max3 … limit CYL S2 A3
min1 … switch-on temp. coll. S1 A1
min2 … switch-on temp.ssl. S5 A2
min3 … switch-on temp. boiler S6 A3
diff1 … coll. S1 – CYL S2 A1
diff2 … supply l. S5 – CYL S4 A2
diff3 … boiler S6 – CYL S2 A3
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