Vaillant geoTHERM Installation Instructions Manual page 85

Display shown
Diagnosis
Heat source
T return source
T outlet Evap.
Brine pump
Brine pressure
Diagnosis
Heating circuit
Buffer VF1
Buffer RF1
Flow sensor VF2
Current DHW temp.
<UV1>
9.7 Menu D: Carrying out diagnoses*
* see Figs. 1 and 2 in the appendix
Installation instructions geoTHERM 0020051574_04
Adapting the appliance to the heating system
Description
T return source: Brine water temperature/well water
D4
temperature at the heat pump inlet, T3.*
10 °C
T outlet Evap.: Brine water temperature/well water
9 °C
temperature at the heat pump outlet, T8.*
ON
Brine pump: VWS only: Brine pump status: ON/OFF.
1.5 bar
VWW only: Well pump status: ON/OFF
Brine pressure (VWS only): Brine pressure at the
heat source pressure sensor.
Buffer VF1: Flow temperature sensor VF1 of the
D5
buffer tank.
45 °C
Buffer RF1: Return temperature sensor RF1 of the
buffer tank.
36 °C
38 °C
Flow sensor VF2: Current heating flow temperature.
52 °C
HK
Current DHW temp.: Temperature in the DHW tank.
<UV1>: = Status of the 3-way diverter valve for heat-
ing/cylinder charging (CH = heating circuit, HW
= hot water).
9
Factory setting
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85