Technische Alternative UVR65, Programs, Installation, Electric Connection User Manual

Page: 58 / 176

58
Program 656 – DHW preparation incl. circu burner request
Only practical with speed control activated!
(
Absolute value control: mode „Inverted“ input S1, Differential v.c. mode „Normal“ sensors S3 and S1
)
Program 656: Pump A1 runs, if:
• Flow switch S5 detects flow. The nominal value for the speed control (absolute value
control) of pump A1 is specified for S1 .
Pump A2 runs, if:
• S3 exceeds the threshold min1 • and S3 is greater than S4 by the difference diff1
• and S4 has not exceeded the threshold max1 .
Output A3 is activated, if S3 falls below the threshold min3 .
Output A3 is deactivated (dominantly), if S2 exceeds the threshold max3 .
A1 = flow switch (S5) = ON
A2 = S3 > (S4 + diff1) & S3 > min1 & S4 < max1
A3 (on) = S3 < min3 A3 (off) = S2 > max3
All pr1: Circulation pump A2 is only activated, if flow switch S5 is ON ( A1 = ON), in
addition to basic regulation.
All pr2: The burner request ( A3 ) is regulated using only sensor S3.
A3 (on) = S3 < min3 A3 (off) = S3 > max3 (dominant)
All pr4: Pump A1 runs, if:
• Flow switch S5 or pump A2 is active.
A1 = A2 or flow switch S5 = ON
necessary settings:
max1
max2
min1
min3
diff1
... limit circulation return S4
... burner req. off CYL S2
... activation temp. CYL S3
... burner req. off CYL S3
... CYL S3 - circ. return S4
à A2
à
A3
à
A2
à A3
à
A2