34
S2
S4
S3
A3
A1
S5
A2
S1
Program 384 - Layered storage with bypass function
Layered system only effective with speed control activated.
(Absolute value control system: AC N1)
Program 384: 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.
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:
S3 is greater than S2 by diff3 and pump A1 is running.
A1 = S1 > (S2 + diff1) & S1 > min1 & S2 < max1
A2 = (S5 > min2 or S5 > (S4 + diff2)) & S4 < max2
A3 = S3 > (S2 + diff3) & (A1 = on)
Program 385: 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.
Required settings:
max1 … limit CYL S2 A1
max2
… limit CYL S4 A2
min1 … switch-on temp. coll. S1 A1
min2 … switch-on temp.ssl. 1 S5 A2
diff1 … coll. S1 – CYL S2 A1
diff2 … supply l.1 S5 – CYL S4 A2
diff3 … supply l.2 S3 – CYL S2 A3
S1 S3 S5 S5
min1 <min2 >min2
A2
S2 S4 S4
max1 max2 max2
diff3
A3
diff1
A1
diff2
A2
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