Parameters
WE Parameter level / Range of values
Hysteresis** 5 °C PA4 / 0 to 30 °C
Charging temperature boost*** 10 °C PA4 / 0 to 50 °C
Max. charging temperature 80 °C PA4 / 20 to 130 °C (only with VF4)
Lag of storage tank charging pump 0.5 PA4 / 0 to 10.0
Sustained DHW temperature 40 °C PA4 / 20 to 90 °C
* Parameters serve as limitation of the adjustment range for the DHW temperature to be set
at the rotary switch
** Deactivation value T =
DHW temperature
+
hysteresis
*** Charging temperature T =
DHW temperature
+
charging temperature boost
6.3 DHW heating in instantaneous heating system
Without a flowmeter or flow switch, the required
DHW temperature
at sensor VF is only reg
-
ulated during the times-of-use of the circulation pump ZP. The flowmeter or flow switch allow
the controller to recognize exactly when DHW is being tapped. By deleting all the
time-of-uses for the circulation pump, it is possible to regulate the required DHW tempera
-
ture just while the DHW is being tapping.
Functions WE Configuration
Water flowmeter 0
AnA
CO4 -> F04 - 1
AnA (water flowmeter), bin (flow switch)
Parameters WE Rotary switch / Range of values
DHW temperature set point 55 °C Bottom /Min. to max. DHW temperature
Sustained DHW temperature 40 °C Bottom /Min. to max. DHW temperature
68 EB 5575 EN
System-wide functions
Fig. 11 · Schematics of an instantaneous heating system with water flowmeter
(CO4 -> F04 - 1, select: AnA)
VF Flow sensor
ZP Circulation pump
WW Hot water
KW Cold water
Water flowmeter
To Next Page
Loading...
