10
6
Hydraulic applications
6.1
Hydraulic variant 1
Fresh water station
The flow rate FLOW and the inlet tempera-
ture TKW into the heat exchanger and the
outlet temperature TWW out of the heat
exchanger are measured. The goal is to
reach the set temperature on the TWW sen-
sor at the heat exchanger outlet and to hold
it.
For this purpose, the heat supply is control-
led on the primary side via the FRIWA pump
with a speed controller, which attempts to
reach the set point on the TWW sensor and
to hold it.
*) The TPV supply sensor for the plate heat
exchanger optimizes the fresh-water control
since the temperature of the heat source is
included in the formation of the control varia-
ble for the primary pump.
Sensor side
- B7
V2
+
-
Voltage 5 V DC
Ground
GND
TWW DHW sensor
B6
Flow, sec.
V1
- GND
- S2
Ground
GND
PWM/ 0 ... 10 V
S1
Ground GND
eBUS e
Mains side
TKW cold-water sensor
B5
N
Ground
GND
5
TPV sensor, prim. Supply
B4
4
-
-
GND
3
B3
2
-
-
GND
1
PP primary pump
B2
L’ Support phase
- GND
L Phase 230 V
- B1
Содержание TACOTHERM FRESH PETA ES 5941S
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