42
A1
S1
A2
A3
S4
S2
S3
TK1
TK2
Program 464 - Solar power system with 2 consumers and bypass function
Program 464:
Pump
A1
runs when:
S1
is greater than the threshold
min1
and
S1
is greater than
S2
by the difference
diff1
or
S1
is greater than
S3
by
diff1
both temperature delimiters (
S2 > max1
and
S3 > max2
) have not been exceeded.
Feed pump
A2
runs when:
S4
is greater than the threshold
min2
and
S4
is greater than
S2
by the difference
diff2
and
S2
has not exceeded the threshold
max1
.
The feed pump
A3
runs when:
S4
is greater than the threshold
min2
and
S4
is greater than
S3
by the difference
diff3
and
S3
has not exceeded the threshold
max2
.
A1 = (S1 > (S2 + diff1) or S1 > (S3 + diff1)) & S1 > min1
&
(S2 < max1 or S3 < max2)
A2 = S4 > (S2 + diff2) & S4 > min2 & S2 < max1
A3 = S4 > (S3 + diff3) & S4 > min2 & S3 < max2
All p1:
Instead of both pumps
A2
and
A3
one pump
A2
and a three-way valve
A3
are deployed.
Valve
A3
/S receives power when filling tank
TK2
.
Speed control
via control outputs:
COP 1 and COP 2
are set to the highest speed as soon
as value
max1
is reached.
All pr2:
Both secondary solar loops have separate
switch-on thresholds at
S4
:
Output
A2
retains
min2
, and
A3
switches at
min3
.
Required settings:
max1
… limit TK1
S2
A1, A2
max2
… limit TK2
S3
A1, A3
min1
… switch-on temp. coll.
S1
A1
min2
… switch-on temp. ssl.
S4
A2, A3
min3
… see all pr2
diff1
… coll.
S1
– TK1
S2
A1
… coll.
S1
– TK2
S3
A1
diff2
… supply l.
S4
– TK1
S2
A2
diff3
… supply l.
S4
– TK2
S3
A3
S1
S4
min1 min2
S2
S3
max1
max2
diff1
A1
diff2
A2
diff1
A1
diff3
A3