Intended Use; Regulations And Guidelines; Operation; Filling And Draining The Dhw Cylinder - Vaillant uniSTOR Operating And Installation Manual

3 Safety instructions and regulations

4 Operation

Water escapes from the blow-off line during heating
(Exception: an expansion tank for domestic water is
available).
The blow-off line must be fed to an appropriate drain
point where nobody can be put at risk.
Therefore do not block the expansion relief valve or the
blow-off line.
H Danger!
Danger of scalding due to hot water!
With the VIH S solar cylinder, the outlet tem-
peratures at the taps can be up to 85 °C.
Danger of frost!
The cylinder must be completely drained if its is to be
shut down for a long period of time in an unheated
room (e. g. winter holidays etc.).
Alterations
You must not make any alterations to the cylinder or its
control system, the water and electricity supply lines
(if installed), the blow-off line or the expansion relief
valve for the cylinder water.
Leaks
In the event of a leak in the hot water line area between
the cylinder and extraction point, please close the cold
water shut-off valve at the cylinder and have the leak
repaired by a suitably qualified heating engineer.
3.2

Intended use

Vaillant VIH S, VIH R and VIH RW cylinders are used
solely to supply households and industry with domestic
hot water at up to 85 °C in accordance with the drinking
water ordinance.
They may only be used for this purpose. Any improper
use is forbidden.
The cylinders must be used in combination with Vaillant
boilers and circulation water heaters.
VIH S solar cylinders must be used with the Vaillant
solar system.
The VIH RW 300 must be used with a geoTHERM heat
pump.
The cylinders can be integrated without problems into
any Vaillant or other water-based central heating instal-
lation, in which case this manual must be observed.
However, the VIH S and VIH R cylinders can also be sup-
plied with remote heat from a transfer station. In this
case, other performance data will have to be taken into
consideration.
This unit is not intended for use by persons (including
children) with physical, sensory or mental impairments
or who have inadequate experience and/or knowledge,
unless they are supervised by a person responsible for
their safety or have been given instructions by this per-
son regarding the operation of the unit.
4
Children must be supervised to ensure they do not play
with the unit.
Any other or additional use is considered to be improp-
er. The manufacturer or supplier is not liable for any re-
sulting damage. The user alone bears the risk.
Intended use includes observing the operating and in-
stallation manual and adhering to the care and inspec-
tion conditions.
a Caution!
Any improper use is forbidden.
3.3
Observe all applicable national regulations and guide-
lines.
Before the installation, check if there are further local
regulations.
4 Operation
The VIH S solar cylinder can be controlled by all Vaillant
solar controllers.
The VIH R cylinder can be combined with various con-
trollers and boilers.
The VIH RW cylinder is controlled by the heat pump con-
trollers.
In each case, the temperature of the water in the cylin-
der is set and read on the assigned control unit.
4.1
Proceed as follows when putting your cylinder into serv-
ice (e. g. after switching off and draining the appliance
due to a long period of absence):
• Before heating water for the first time, open a hot
water draw-off point (tap) to check whether the vessel
is filled with water and that the stop valve in the cold
water supply pipe is not closed.
• Check that the heat source is ready for operation.
• Set the temperature for the water in the VIH cylinder
on the controller or on the boiler.
• You can read the temperature that has been reached
on the controller or on the boiler.
h Note!
When heating up for the first time or after long
shut-down breaks, the full output of the cylin-
der is only available after a waiting period.
Operating and Installation Manual for uniSTOR, auroSTOR, geoSTOR Cylinders 0020080043_00

Regulations and guidelines

Filling and draining the DHW cylinder