Technische Alternative UVR61-3 - Program 480 - 2 Consumers and 3 Feed Pump Functions

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All programs +4: The two secondary pumps A2 and A3 are only released when primary
pump
A1 is running in automatic mode.
The priorities for CYL 1 and CYL 2 can be set in the parameter menu under PA. In addition,
a solar priority function can be set for this diagram in the menu
PRIOR (see solar priorities for
more details).
Program 480 - 2 consumers and 3 feed pump functions
Program 480: Feed 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 S2 by the difference diff2
 and S2 has not exceeded the threshold max2.
The feed pump
A3 runs when:
 S5 is greater than the threshold min3  and S5 is greater than S4 by the difference diff3

and S4 has not exceeded the threshold max3.
A1 = S1 > (S2 + diff1) & S1 > min1 & S2 < max1
A2 = S3 > (S2 + diff2) & S3 > min2 & S2 < max2
A3 = S5 > (S4 + diff3) & S5 > min3 & S4 < max3
S1 S3 S5
min1 min2 min3
S2 S4
max1 max3
max2
diff2
A2
diff1
A1
diff3
A3
Required settings:
max1 … limit CYL 1 S2  A1
max2 … limit CYL 1 S2  A2
max3 … limit CYL 2 S4  A3
min1 … switch-on t. heat source S1  A1
min2 … switch-on temp. boiler S3  A2
min3 … switch-on temp. CYL 1 S5  A3
diff1 … heat source S1 – CYL 1 S2  A1
diff2 … boiler S3 – CYL 1 S2  A2
diff3
… CYL 1 S5 – CYL 2 S4  A3
S1
A1
A2
A3
S3
S5
S2
S4
CYL 1
CYL 2