Hydraulic Connections - Viessmann VITODENS 100-W Installation And Service Instructions Manual

Hydraulic connections

Heating System
(typical system designs)
• The Vitodens 100-W is designed for
connection to sealed central heating
water systems only.
Combination boiler
Note
The boiler incorporates an internal bypass
to ensure adequate water flow. Certain
thermostatic radiator valve manufacturers
may require that a bypass valve is fitted
in addition to the integral by pass.
Specifications as to the individual
requirements should be sought prior
to installation.
Filling Loop
This boiler is not fitted or supplied with a
filling loop. Any filling loop being fitted
should comply with the water supply
(water fittings) regulations 1999 Section
G24.1 and G24.2. A filling loop should be
fitted at some point to allow the CH system
to be filled.
• A sealed system must only be filled by a
competent person.
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