3
uniSTOR - Installation manual for additional Immersion Heater
1
Introduction
1.1
Notes on the documentation
The following information is intended to help you
throughout the entire documentation.
Further documents apply in combination with this
installation and maintenance manual.
Applicable documents
The following additional documents are provided with
the appliance:
Instructions for installation and use:
No. 0020005468
The manuals for any accessories and controllers used
also apply.
We assume no liability for any damage caused by
non-observance of these manuals.
1.2
Safety instructions and symbols
Please observe the safety instructions in this manual for
the installation of the appliance!
Symbols used in the manual are explained below:
Danger!
Immediate danger to life and limb!
Caution!
Potentially dangerous situation for the product
and environment!
Note
Useful information and instructions.
• Symbol for a necessary task
- List for function descriptions or general list
2 Safety instructions
Any spare parts which might be required are contained
in the current spare parts catalogues.
Information can be obtained from Vaillant Customer
Service Centres.
Important:
Before starting any maintenance work:
• Isolate the mains electricity supply by removing the
fuse from the isolating switch.
• When removing the immersion heater ensure that
water is kept away from all electrical components.
• Always use new seals and O–rings when parts are
replaced.
• Always carry out functional checks after any service
work.
• Always check earth continuity, polarity and resistance
to earth with a multimeter after any service work and
after replacing any electrical component.
Danger!
Electrocution touching live parts can be fatal!
Protect the switch box from water.
Before working on the appliance, turn off the
power supply and lock it off to prevent
accidental operation!
All electrical work shall be carried out by a person
competent to do so and shall comply with BS 7671
(IEE Regulations) and Part P of the Bilding Regulations.
2.1 Note to Installers
This product has been assessed and found to comply
with the requirements of the Building Regulations for
unvented hot water storage systems and must not be
altered or modified in any way.
The installation must be carried out by a competent per-
son and be in accordance with the relevant requirements
of the Local Authority, Building Regulations, Building
Regulations (Scotland), Building Regulations (Northern
Ireland), and the bye-laws of the local Water
Undertaking. The installation is subject to Building
Regulation approval, notify the Local Authority of inten-
tion to install. In the event of parts replacement, use
only genuine spare parts supplied by Vaillant Ltd.
Important:
The accessory heater is only designed for use in the
upper flange socket of the uniSTOR hot water cylinders
• Vaillant uniSTOR VIH GB 260 S and
• Vaillant uniSTOR VIH GB 310 S
Non-observance of the above information may cause
serious damage.
Introduction 1
Safety instructions 2
