Operating instructions for auroSTOR 0020111120_02 5
2.3 Basic safety instructions
Installation, commissioning, and maintenance
Installation and adjustment as well as service, mainte-
nance and repair must be carried out by a competent
person approved at the time by the Health and Safety
Executive and be in accordance with the relevant
requirements of the Local Authority, Building Regula-
tions, Building Regulations (Scotland), Building Regula-
tions (Northern Ireland), and the bye-laws of the local
Water Undertaking.
Cylinder safety information
This product has been checked for adherence to the
building regulations for unvented domestic hot water
cylinder systems. It may not be changed or modified
in any way whatsoever.
> You must also observe the guidelines of the local water
utility companies.
If the water does not meet the requirements of The
Water Supply (Water Quality) Regulations 2000 (Amend-
ment) Regulations 2007, corrosion damage may occur
to the cylinder.
> Only use the cylinder to heat potable water.
Avoiding burns and scalds
If the system is in stagnation, hot steam can discharge
from the expansion relief valve of the solar pump unit.
This may be visible in the receptor canister. Should this
occur contact your installer for advice.
The temperature of the stored water could reach high
temperatures after solar charging and your Vaillant solar
installer will have fitted a tempering valve so as to pre-
vent this reaching the hot water taps. Should excessively
hot water reach your hot taps contact your installer
immediately.
Preventing frost damage
You must not turn the boiler off completely so that you
can still use all safety functions for your central heating
system. If you want to take the unit out of operation for
a relatively long period of time in an unheated room at
risk from frost, you must arrange for a competent per-
son to completely drain the auroSTOR.
Avoiding damage caused by leaks
If there are leaks in the pipework, close off the cold
water stop valve on the safety assembly and notify a
competent person so that they can rectify the leaks.
Preventing damage due to unauthorised changes
to the unit
Changes to the system may only be carried out by
a competent person!
> The installed safety devices must always be used.
Avoiding damage resulting from the closing of the
expansion relief valve
> Never shut off the expansion relief valve or relief valve
termination.
Lightning and hail
We recommend declaring the solar heating system as an
increase in value to the insurance and insuring it explic-
itly against lightning. It may also make sense to take out
an insurance against hailstorms in particularly prone
areas.
Safety instructions 2
