Dhw Circuit Additionally Controlled By A Globe Valve - Samson TROVIS 5579 Mounting And Operating Instructions

Parameters
Hysteresis**
Charging temperature boost***
Lag of storage tank charging pump
* 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

6.1.1 DHW circuit additionally controlled by a globe valve

In systems Anl 7.1, 8.1, 9.1, 9.5, 11.1, 12.1, 13.1 and 21.1, the following version with
globe valve can be configured instead of the three-way valve control in the DHW circuit:
Rk2/Y2
SLP
Fig. 9 · Schematics of a storage tank system with a globe valve for return flow temperature limitation
Globe valve and temperature sensor VF2 are used exclusively for return flow temperature
limitation in the schematics shown above. The pre-control circuit provides at least the same
flow temperature as in the standard schematic version which is calculated from DHW tem-
perature set point + Charging temperature boost + Boost set point of primary exchanger
control.
The functions and parameters of the DHW heating in the storage tank system are upgraded
by the following settings:
Function
DHW circuit additionally controlled by a
globe valve
Parameter
Maximum return flow temperature
WW
SF1
ZP
VF2
KW
WE Parameter level / Range of values
5 °C PA4 / 0 to 30 °C
10 °C PA4 / 0 to 50 °C
0.5 PA4 / 0.1 to 10.0
Rk2/Y2
SLP
SF1
VF2
ZP
WW
KW
WE Configuration
0 CO4 -> F20 - 1
WE Parameter level / Range of values
65 °C PA4 / 20 to 90 °C
Functions of the DHW circuit
Control circuit/valve 2
Storage tank charging
pump
Storage tank sensor 1
Flow sensor 2
Circulation pump
Hot water
Cold water
EB 5579 EN
85