9
Hydraulic diagrams
The hydraulic schemas in this booklet are representative diagrams that illustrate the
principles involved. They are for the purpose of correct choice of program but do not
in any way replace the specialized planning of a system, which is why copying them
does not guarantee that they will function.
Warning: Before using the hydraulic schemas it is absolutely necessary to read the
operating instructions and in particular the chapters "Choice of Program" and "Set
values".
The following functions can be used additionally with
every
program diagram:
Pump after-running time, Pump speed control, 0 – 10V or PWM output, System
function control, Heat counter, Legionella protection function, Anti-blocking
protection
The following functions only make sense together with solar systems:
Collector excess temperature delimiter, frost protection function, Start function,
Solar priority, Collector re-cooling function, Drain-back function (only for drain-
back systems)
The outputs
A2
and/or
A3
from diagrams which do not use these outputs, can be
logically linked (AND, OR) in the menu "
Par
" with other outputs or used as a time switch
output.
In diagrams with a holding circuit (= burner requirement with a sensor, shut-down
function with another one), the shut-down transducer is “dominant”. In other words, if
improper parameters or sensor installation leads to the fulfillment of both the shut-on and
shut-off conditions, the shut-off condition has priority.
The factory setting for the adjustment values (max, min, diff) is appropriately matched to
the diagrams, but must however be checked prior to commissioning and matched to the
individual requirements. The specific adjustment values are only loaded, if after setting
the program number, the factory setting is reloaded (press the bottom key (entry) while
plugging in). Only then should the controller be parameterised.
For programs, for which it is not possible to display a diagram in the display, the upper
area remains empty. For some programs, the display was only approximately matched to
the actual diagram, individual symbols may be missing.
Pump valve system
of the programs 49, 177, 193, 209, 225, 226, 227, 417, 625:
Speed
control
(if activated):
Control output COP 1:
The speed control only operates when
filling tank 1
. If
max1
is exceeded on the sensor 2 (filling tank 2 or 3), the pump is operated on the highest
speed.
Depending on the output mode, the highest speed complies with analogue stage 100
(
modes 0-100
, MAX = 100)) or analogue stage 0 (
modes 100-0
, MAX = 100)).
Control output COP 2:
The speed control affects
all tanks
during filling.
PSC
(for standard pumps only): The speed control
only
operates when
filling tank 1
.
