36
Program 416 - 1 consumer, 2 feed pump functions, and burner requirement
Priority assignment between CYL 1 and CYL 2 possible
Program 416: Feed pump A1 runs when:
S4 is greater than the threshold min1 and S4 is greater than S1 by the difference diff1
and S1 has not exceeded the threshold max1.
The feed pump A2 runs when:
S4 is greater than the threshold min1 and S4 is greater than S2 by the difference diff2
and S2 has not exceeded the threshold max2.
Output A3 switches on when S4 falls below threshold min3.
Output
A3 switches off (dominant) when S3 exceeds max3.
A1 = S4 > (S1 + diff1) & S4 > min1 & S1 < max1
A2 = S4 > (S2 + diff2) & S4 > min1 & S2 < max2
A3 (on) = S4 < min3 A3 (off) = S3 > max3
All programs +1: Instead of both pumps A1 and A2 one pump A1 and a three-way valve A2
are deployed.
Speed control: Observe the comments on page 9! Without a priority
allocation, cylinder 2 is filled by priority.
A1 ... common pump A2 ... Valve (A2/S receives power when filling cylinder CYL 2)
All programs +2:
In addition, the feed pump A1 switches on when the temperature of the cylinder S1 (CYL 1)
varies by
diff3 from the boiler flow temperature.
In addition, the feed pump
A2 switches on when the temperature of the cylinder S2 (CYL 2)
varies by
diff3 from the boiler flow temperature.
S3
A2
A3
S5
S4
S1
S2
A1
S3
CYL 3
CYL 1
CYL 2
Required settings:
max1 … limit CYL 1 S1 A1
max2 … limit CYL 2 S2 A2
max3 … burner req. off CYL 3 S3 A3
min1 … switch-on temp. CYL 3. S4 A1, A2
min2 … see all programs +2
min3 … burner req. on CYL 3 S4 A3
diff1 … CYL 3 S4 – CYL 1 S1 A1
diff2 … CYL 3 S4 – CYL 2 S2 A2
diff3 … see all programs +2
S4
min1
S1 S2
max1 max2
diff2
A2
diff1
A1
Burner
A3
S4 min3
S3 max3
S5 for program +2
To Next Page
Loading...
Need help?
General
