Preparing For Installation; Product Information - Viessmann VITODENS 100 Installation And Service Instructions Manual

Product information

Vitodens100, WB1A
Set up for operation with natural gas.

Preparing for installation

General Information
Appliance description
The Vitodens 100 is a fully automatic,
wall hung, fan assisted balanced flue
condensing boiler for use with natural
gas (G20).
The Vitodens 100 is fully modulating
and provides central heating outputs
between 8.0 kW (27.300Btu/h) and
24.0 kW (84.300Btu/h)/30.0 kW
(93.550 Btu/h) and instantaneous hot
water at outputs between 8.0 kW
(27.300 Btu/h) and 24.0 kW
(84.300Btu/h)/30.0 kW (93.550 Btu/
h).
The appliance always gives priority to
domestic hot water supply.
Certification details
The Vitodens 100 is certified to com-
ply with the requirements of prEN 483
and EN 625 for use in GB and IE
(Great Britain and Ireland) using gas
category 2H (G20 with a governed
gas supply at 20 mbar (8 in.wg) inlet
pressure).
Preparing for installation
The appliance is designed for use
with sealed primary water systems
(only) and incorporates a circulation
pump, diverter valve assembly, flow
switch (combi boiler only), DHW
plate-type heat exchanger (combi
boiler only), safety valve and CH
expansion vessel. A separate DHW
expansion vessel is not required.
Internal frost protection and an elec-
tronic control unit is fitted as standard
equipment and the boiler may be used
with any suitable room thermostat and
/ or time clock in addition to the
optional controls available from
Viessmann.
Asbestos, mercury or CFC´s have not
and will not be used in this product.
The appliance classification is either
C or C depending upon whether
13x 33x
a horizontal or vertical flue terminal is
used.
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