56
Program 640 - Preparation of hot water including circulation and solar power system
Only makes sense if the speed control is activated!
(Absolute value control system: AC I5, Differential control DC N35)
WARNING:
Collector excess temperature limitation on output
A1
is activated ex works. This
must be changed to
A3
or deactivated.
Program 640:
Pump
A1
runs when:
the flow switch
(FS)
S6
detects flow. The nominal value DVA for the PSC speed control
(absolute value control) of pump A1 is specified for sensor S5.
The circulation 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
.
Solar pump
A3
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
.
A1
=
flow
switch
S6
=
ON
A2 = S3 > (S4 + diff2) & S3 > min2 & S4 < max2
A3 = S1 > (S2 + diff1) & S1 > min1 & S2 < max1
All pr1
: Circulation pump
A2
is only switched on when in addition to the basic
function the volume flow switch
(FS)
S5
is on (
A1
= ON).
All pr4:
Pump
A1
runs when:
the flow switch
(FS)
S6
detects flow or pump
A2
is switched on.
A1 = A2 or flow switch (S6) = ON
S1
S3
min1
min2
S2
S4
max1
max2
A1 = FS (S6) = ON
diff2
A2
diff1
A3
Required settings:
max1
… limit TK
S2
A3
max2
… limit circ. return
S4
A2
min1
… switch-on temp. coll.
S1
A3
min2
… switch-on temp TK
S3
A2
diff1
…
coll.
S1
– TK
S2
A3
diff2
… TK
S3
– circ. return
S4
A2
S1
A2
A1
W
W
S2
S3
S4
S5
A3
K
W
S6
CW