General Notes On Operating Modes And Functions - Vaillant geoTHERM VWS Installation Instructions Manual

2.4 General notes on operating modes and func-
tions
There are five operating modes available for the heating
circuit and these can be used for time and temperature
control of the heat pump (see Chap. 8 "Control sys-
tem").
Three additional operating modes are available for the
connected domestic hot water cylinder and circulation
circuit.
During start-up, you will tell the heat pump which of the
connection configurations listed in the appendix cor-
responds to your installation by entering the number of
the corresponding hydraulic plan into the controller.
Thus all the operating parameters will be set to prede-
termined values, so that the heat pump can work opti-
mally. However, you can individually set and adapt the
operating modes and functions afterwards.
You will find all the information on operating modes, au-
xiliary and special functions in Chapter 8, "Control sys-
tem".
The heat pump is equipped with numerous automatic
auxiliary functions to ensure trouble-free operation
(see also Chap. 8.2 "Automatic auxiliary functions"):
– Frost protection
Prevents the heating system from freezing
– Tank frost protection
Prevents the connected tanks from freezing
– Checking the external sensors
Checking the connected sensors during initial commis-
sioning using the basic hydraulic circuit that was
entered previously
– Protection against loss of heating water
Shuts down when there is a loss of heating water and
switches on again when there is sufficient water pres-
sure
- Protection against loss of brine
Shuts down if the brine pressure is too low and swit-
ches on again when the pressure is sufficient
– Floor protection circuit
Overheating protection for the floor (important for
wooden floors)
– Pump blocking protection
Prevents seizing of pumps in the system
- Freeze protection function
Shuts down the compressor if the temperature of the
heat source falls below a predetermined value
Installation instructions geoTHERM VWS 0020046310_01
Description of the appliance 2
Additionally, there are further settable auxiliary func-
tions available (see also Chap. 8.3 "Settable auxiliary
functions"):
– Timer programmes
To set the heating times for each heating circuit
– Holiday programming
Programming of two holiday periods with date entry
and set-back temperature
– Party function
Carries the heating and hot water times forward to
the next shut-off point
– Energy saving function
Lowers the flow setpoint temperature for a presettab-
le period
– Screed floor drying
For drying out screed floors
– Fixed value controlling
Sets a fixed flow temperature
– Anti-legionella function
Kills germs in the tank and in the pipes
– Quick test
Test function for maintenance
– Remote maintenance
Diagnostics and setting via vrDIALOG or
vrnetDIALOG
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