Vaillant geoTHERM Installation Instructions Manual page 80

9 Adapting the appliance to the heating system
Display shown
Special function
Floor drying
HK2:
HK3:
HK4:
>Set starting day
Auxiliary heater
Aux on peak rate
Aux on during CH
Aux on during DHW
Aux heater on at
>Select
9.6. Menu C: Set parameters for the heating system
80
Description
Day: You can select the start day for floor drying.
C6
Temp.: The temperature for the flow target tempera-
Day Temp.
ture is called up automatically according to the
>1 0 °C
floor drying function (day values 25/30/35 °C)
(¬ Ch. 9.3.2).
It takes approx. 20 seconds for the actual value to be
displayed!
Deactivating floor drying function: set to Day "0".
Depending on the configuration of the heating sys-
tem, the display will indicate for other heating circuits
if required.
Aux on during CH
C7
no CH: CH blocked.
>NO
comfort: CH is enabled, depending on the bivalence
no CH
point and energy integral or buffer cylinder
no CH
temperature.
-600° min
CH only: Heating only through auxiliary heating, e.g.
¯
during emergency operation.
Aux on during DHW
no CH: CH blocked.
comfort: Auxiliary heater supplies the temperature
level which cannot be achieved by the compres-
sor (approx. > 55 °C cylinder temperature).
CH only: Domestic hot water heating only through
auxiliary heating, e.g. during emergency opera-
tion (if "no CH" was previously enabled, the max.
domestic hot water of approx. 55 °C applies; if
"comfort" was enabled, the set value for the max.
domestic hot water in Menu
Aux heater on at: Set the degree minutes until the
auxiliary heating starts, added to the degree
minutes for the start of the compressor.
Example: -600°min plus -120°min
Out T. aux htr on (Bivalence point): Auxiliary heater
for reheating is only enabled in heating mode below
this outside temperature (settable in Tab. 9.9, Menu
A3)..
4 applies).
=> start at -720°min.
Installation instructions geoTHERM 0020051574_04
Factory setting
0
no CH
no CH