Vaillant VIH S GB 210/2 S, Operating Instructions Manual

Page: 8 / 16

8
Operating instructions for auroSTOR 0020111120_02
4.3 Setting the hot water temperature
The hot water temperature is set to the required value
by the competent person during the cylinder commis-
sioning process.
If an external controller is installed for hot water tem-
perature control, you can set the hot water temperature
and primary heating times using this controller.
For information on making settings, see the operating
instructions for the controller
1
Fig. 4.1 Setting the cylinder thermostat
Key
1 Cylinder thermostat
If no controller for hot water temperature control is
installed, you can set the required hot water tempera-
ture on the cylinder thermostat (
2 ). You can set the
reheating times on the installed hot water timer.
Observe the operating instructions for the hot water
timer.
>
Set the desired cylinder hot water temperature on the
cylinder thermostat (
1 ).
In order to avoid calcification, the temperature should
be set to a maximum of 60°C.
>
Use the operating instructions for the gas-fired wall-
hung boiler to make sure that the unit is ready for opera-
tion.
i
If you are heating up water for the first time or
after a long switch-off period, the full cylinder
performance is only available following a waiting
period.
i
If the auroSTOR has been installed in a cupboard
used for airing clothes, make sure that clothing
and other objects are not placed on the cylinder,
control devices, pipes or other system compo-
nents.
i
Always make sure that there is clear access
to the cylinder to enable the use of the hot
water thermostat controller and the thermostat
mixer.
4.4 Switching off hot water production
>
Switch off the gas-fired wall-hung boiler (see operating
instructions for the gas-fired wall-hung boiler) to tem-
porarily switch off the heating and hot water system.
4.5 Frost protection
4.5.1 Frost protection of solar heating system
>
Arrange for a competent person to check the frost pro-
tection of the solar heating system once a year.
The checking of the frost protection is a usual compo-
nent of a maintenance agreement with a competent per-
son.
i
Do not add any fluid to the solar circuit.
Do not mix the solar fluid with other fluids.
4.5.2 Cylinder frost protection
b Caution!
Risk of damage due to frost!
If the cylinder is placed out of operation for
a relatively long period of time in an
unheated room (e.g. during a winter holi-
day), the cylinder must be completely
drained.
>
Contact a competent person to drain the
cylinder.
If you are absent during a relatively long period when
there is a risk of frost, make sure that you leave the cen-
tral heating on and that the temperature in the cylinder
room and in all other rooms is kept above freezing.
4 Operation