Dhw Heating In Instantaneous Heating System - Samson TROVIS 5575 Mounting And Operating Instructions

System-wide functions
Parameters
Hysteresis**
Charging temperature boost***
Max. charging temperature
Lag of storage tank charging pump
Sustained DHW temperature
* 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

Fig. 11 · Schematics of an instantaneous heating system with water flowmeter
(CO4 -> F04 - 1, select: AnA)
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
Water flowmeter
Parameters
DHW temperature set point
Sustained DHW temperature
68
EB 5575 EN
WE Parameter level / Range of values
5 °C PA4 / 0 to 30 °C
10 °C PA4 / 0 to 50 °C
80 °C PA4 / 20 to 130 °C (only with VF4)
0.5 PA4 / 0 to 10.0
40 °C PA4 / 20 to 90 °C
WE Configuration
0 CO4 -> F04 - 1
AnA AnA (water flowmeter), bin (flow switch)
WE Rotary switch / Range of values
55 °C Bottom /Min. to max. DHW temperature
40 °C Bottom /Min. to max. DHW temperature
VF Flow sensor
ZP Circulation pump
WW Hot water
KW Cold water
Water flowmeter