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35
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
to 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 TK
S2
A1
max2
… limit TK
S4
A2
min1
… switch-on temp. coll.
S1
A1
min2
… switch-on temp.ssl. 1
S5
A2
diff1
… coll.
S1
– TK
S2
A1
diff2
… supply l.1
S5
– TK
S4
A2
diff3
… supply l.2
S3
– TK
S2
A3
S1
S3 S5 S5
min1
<min2 >min2
A2
S2
S4 S4
max1
max2 max2
diff3
A3
diff1
A1
diff2
A2