Vaillant Solar System and auroSTOR unvented solar..., Start-Up, Maintenance And Troubleshooting Manual

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5 Manual - Solar hot water systems 0020009607_02
as well as workers, passers by and the general public at
large. To that end these works must conform, but not be
limited to, the current regulations in force such as the
following
Health and Safety at Work act 1974
Work at Height Regulations 2005.
Electricity at Work Regulations 1989
All necessary Building Regulations.
Work should be preceded by a risk assessment covering
all aspects of health and safety risks, or training require-
ments that can reasonably be foreseen to be
associated with the work. All scaffolding in the UK, other
than prefabricated (zip-up) scaffold towers, must be de-
signed and constructed by a vetted contractor, and
have suitable kick boards, hand rails and where approp-
riate netting. Areas around the scaffolding should be
zoned off and marked with suitable warning signs to a
suitable distance to protect persons from falling objects.
Workers should have available and use personal protecti-
ve equipment as necessary. This would include equip-
ment such as fall protection systems, safety gloves,
goggles, dust masks as well as any specialised equip-
ment that may be in use such as lifting and handling
equipment.
The completed works shall comply with all necessary BS
EN Standards and Codes of practice as well as Building
control or planning requirements and be confirmed
where necessary by notification to building control or
the appropriate competence based notification body.
2.3 Safety instructions
The entire solar system must always be installed and
operated in accordance with recognised technical
standards.
d Danger!
Risk of falling!
Make sure you adhere to the valid work protec-
tion regulations, in particular when working on
the roof. Make absolutely sure you wear anti-fall
devices whenever there is a risk of falling. (We
recommend Vaillant fall protection systems,
item no. 302 066.) Observe the accident pre-
vention regulations of the trade associations.
H Danger!
Risk of being burned or scalded by hot
components! Install and replace collectors or
collector parts on very cloudy days. Perform
installation work on sunny days only in the
morning or evening or with the collector
covered.
d
Danger!
Risk of being burned or scalded by hot solar
fluid or components! Fill and flush the solar
system when the collectors are cold. Cover the
collectors while doing so.
Danger!
Risk of being burned or scalded by escaping hot
steam!
Steam can escape from the expansion relief
valve of the solar pump unit if the system is
shut down. To avoid injuries, you must connect
the expansion relief valve to a collecting
container with a hose line.
Danger!
Risk of being scalded by hot water! With the
Vaillant auroSTOR combi cylinder, the outlet
temperatures at the taps can be up to 85 °C. To
provide effective protection against scalding in
the event of secondary return, integrate a hot
water thermostat mixer in the system (refer
to Section 5.5.1).
Danger!
Risk of being burned or scalded by escaping hot
steam! Steam can escape from unblocked
automatic bleeders if the system is shut down.
After bleeding, you should therefore always
shut off automatic bleeders or install them in a
location where vapour cannot escape.
Use the automatic Vaillant air separator system (item
no. 302 418). It works fully automatically and does not
need to be subsequently blocked. It must be installed in
an area however, in which no steam can enter, preferably
in the return pipe nearby the solar cylinder.
e Danger!
Danger of death by electric shock!
All live parts of the system may be installed,
serviced and repaired only by a qualified
servicing company!
Danger!
Risk of overvoltage!
Earth the solar circuit as potential equalisation
and protection against overvoltage! Attach
earthing pipe clips to the solar circuit pipes and
connect the clips to a potential rail with a
16 mm
2
copper cable.
Overview of standards, safety instructions 2
System description 3
Danger!
Risk of being scalded by hot water!
With the Vaillant auroSTOR cylinder, the outlet
temperatures could be up to 75 °C. To provide effective
protection against scalding, integrate a hot water
thermostatic mixer in the system. Vaillant supply a
suitable valve with all of our solar sets.
For air removal from the solar system pipe work use the Vaillant
automatic air separator system (item no. 302 418).
It works fully automatically and does not need to be subsequently
capped off. It must however be installed in the pipe work where no
steam can occur, preferably in the return pipe nearby the solar
cylinder.