Preparing For Installation; Product Information; General Information; Appliance Description - Viessmann Vitodens 100 WB1A Installation And Service Instructions Manual

Product information

Vitodens 100, Type WB1A
Set up for operation with natural gas.

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
heat exchanger (combi boiler only),
safety valve and CH expansion ves-
sel. A separate DHW expansion ves-
sel 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.
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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