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36
S1
S2
A1
S3
A2
A3
S5
S4
TK1
TK2
TK3
Program 400 - Solar power system with 1 consumer and 2 feed pump functions
Program 400:
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 feed 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
.
The feed pump
A3
runs when:
S3
is greater than the threshold
min2
and
S3
is greater than
S5
by the difference
diff3
and
S5
has not exceeded the threshold
max3
.
A1 = S1 > (S2 + diff1) & S1 > min1 & S2 < max1
A2 = S3 > (S4 + diff2) & S3 > min2 & S4 < max2
A3 = S3 > (S5 + diff3) & S3 > min2 & S5 < max3
All pr1:
Instead of both pumps
A2
and
A3
one pump
A2
and a three-way valve
A3
are deployed.
Without a priority allocation, tank 3 is filled by priority.
A2
... common pump
A3
... Valve (A3/S receives power when filling tank TK3)
All pr2:
Separate switch-on thresholds on the load pump circuits.
The output
A2
continues to retain
min2
and
A3
switches with
min3.
The
priorities
for
TK2
and
TK3
can be set in the parameter menu under
PA
.
S1
S3
min1
min2
S2
S4
S5
max1 max2 max3
diff2
A2
diff1
A1
diff3
A3
Required settings:
max1
… limit TK1
S2
A1
max2
… limit TK2
S4
A2
max3
… limit TK3
S5
A3
min1
… switch-on temp. coll.
S1
A1
min2
… switch-on temp. TK1
S3
A2, A3
min3
… see all pr2
diff1
… coll.
S1
– TK1
S2
A1
diff2
… TK1
S3
– TK2
S4
A2
diff3
… TK1
S3
– TK3
S5
A3