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

Product information

Vitodens100-W, WB1A
Set up for operation with natural gas.

Preparing for installation

General Information

Appliance description
The Vitodens 100-W is a fully auto-
matic, wall hung, fan assisted
balanced flue condensing boiler for
use with Natural Gas (G20).
The Vitodens 100-W is fully modulat-
ing and provides central heating out-
puts 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-W is certified to
comply with the requirements of prEN
483, EN 625 and EN 677 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.
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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