Servicing; Cleaning; Inspection And Maintenance; Boiler - Viessmann VITODENS 111-W Operating Instructions Manual

Cleaning

All appliances may be cleaned with a
commercially available domestic clean-
ing agent (non-scouring).

Inspection and maintenance

The inspection and maintenance of a
heating system is prescribed by the
Energy Savings Ordinance [EnEV - Ger-
many] and the DIN 4755, DIN 1988-8
and EN 806 standards.

Boiler

Increasing boiler contamination raises
the flue gas temperature and thereby
increases energy losses. All boilers
should therefore be cleaned annually.
Logbook
Please ensure that you have a Logbook
supplied with your appliance. This Log-
book should be completed by your instal-
ler to verify that the correct installation
and commissioning procedure was fol-
lowed.
Failure to complete the Logbook may
result in difficulties should a problem
arise with your appliance during the
guarantee period. This Logbook forms
part of the industry's Benchmark code of
practice for the installation, commission-
ing and servicing of central heating sys-
tems.
Regular maintenance ensures trouble-
free, energy-efficient and environmen-
tally responsible heating. For this, it is
recommended that you take out an
inspection and maintenance contract
with your local contractor.
All Gas Safe Registered Installers carry
a ID card and have a registration num-
ber. Both should be recorded in your
Logbook. You can check your installer is
Gas Safe registered by calling GasSafe
register on +44 (0)800 408 5500 or visit
the website www.gassaferegister.co.uk

Servicing

15