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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 programs +1: Instead of both pumps A2 and A3 one pump A2 and a three-way valve A3
are deployed. Without a priority allocation, cylinder 3 is filled by priority.
A2 ... common pump A3 ... Valve (A3/S receives power when filling cylinder CYL 3)
All programs +2: Separate switch-on thresholds on the load pump circuits.
The output
A2 continues to retain min2 and A3 switches with min3.
The priorities for CYL 2 and CYL 3 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 CYL 1 S2 A1
max2 … limit CYL 2 S4 A2
max3 … limit CYL 3 S5 A3
min1 … switch-on temp. coll. S1 A1
min2 … switch-on temp. CYL 1 S3 A2, A3
min3 … see all programs +2
diff1 … coll. S1 – CYL 1 S2 A1
diff2 … CYL 1 S3 – CYL 2 S4 A2
diff3 … CYL 1 S3 – CYL 3 S5 A3
CYL 1
CYL 2
CYL 3
A2
A3
S5
S4
S1
S2
A1
S3
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