32
S2
S4
S3
A3
A1
S5
A2
A1
S1
Program 352 - Layered cylinder and burner requirement
Layered system only effective with speed control activated.
(Absolute value control system: AC N1)
Program 352: Solar pumps A1 run 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 three-way valve A2 switches up when:
S5 is greater than the threshold min2 or S5 is greater than S4 by the difference diff2
and S4 has not exceeded the threshold max2.
Output A3 switches on when S4 falls below min3.
Output
A3 switches off (dominant) when S3 exceeds max3.
A1 = S1 > (S2 + diff1) & S1 > min1 & S2 < max1
A2 = (S5 > min2 or S5 > (S4 + diff2)) & S4 < max2
A3 (on) = S4 < min3 A3 (off) = S3 > max3
Program 353: If S4 has reached max2, the quick warm-up phase has been completed, and
the speed control is thus blocked
optimal efficiency.
If PSC (pump speed control) is activated, the speed level is set to the maximum level, if
control output 1 is activated; the analog level for the maximum speed is output. Control
output 2 is not changed and continues control.
All programs +4: The burner requirement (A3) only occurs via sensor S4.
A3 (on) = S4 < min3 A3 (off) = S4 > max3 (dominant)
All programs +8: If one of the two solar circuits is active the burner requirement will be
blocked. If the solar circuit switch off the burner requirement is released again with a switch
delay of 5 minutes.
Required settings:
max1 … limit CYL S2 A1
max2
… limit CYL S4 A2
max3
… burner req. off CYL S3 A3
min1 … switch-on temp. coll. S1 A1
min2 … switch-on temp.ssl. S5 A2
min3 … burner req. on CYL S4 A3
diff1 … coll. S1 – CYL S2 A1
diff2 … su
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