Product Information - Viessmann VITODENS 100-W Installation And Service Instructions Manual

Product information

Product information
Vitodens 100-W, type WB1C
Preset for operation with natural gas.
Conversion to LPG P requires a gas con-
version kit.
Gas-Council-Nr.:
■ 19 kW system: 41-819-26
■ 26 kW system: 41-819-27
■ 30 kW system: 41-819-28
■ 35 kW system: 41-819-29
■ 26 kW combi: 47-819-20
■ 30 kW combi: 47-819-21
■ 35 kW combi: 47-819-22
Conversion for other countries
The Vitodens 100-W should generally
only be delivered to those countries
specified on the type plate. For deliveries
to alternative countries, an approved
contractor must arrange individual
approval on his own initiative and in
accordance with the law of the country in
question.
Product description
The Vitodens 100-W is available as a
gas condensing boiler for the connection
of one DHW cylinder and as a gas con-
densing combi boiler with an integral
plate heat exchanger for DHW heating.
For the connection of heating circuits
and the DHW cylinder or the DHW line,
see from page 11.
In the delivered condition, the
Vitodens 100-W is set up for operation
with constant boiler water temperature.
By connecting an outside temperature
sensor (accessory), the boiler can be
operated in weather-compensated
mode.
6
The following are integrated: one sealed
unvented hydraulic system with 2 con-
nections for heating flow and return, and
2 connections for cylinder heating (gas
condensing boiler) or DHW heating (gas
condensing combi boiler).
These boilers are only intended for
installation in sealed unvented heating
systems. Boilers for open vented heating
systems are also available.
If the Vitodens 100-W is installed in an S
plan or Y plan system, the DHW primary
connections are not used and must be
capped off.
The following components are integra-
ted into the hydraulic system:
■ Circulation pump
■ 3-way diverter valve
■ Safety valve
■ Diaphragm expansion vessel
■ Plate heat exchanger for DHW heating
(gas condensing combi boiler)
DHW heating with DHW cylinder
If a Viessmann Vitocell is connected, a
cylinder temperature sensor will issue
the heat demand (accessory). The cylin-
der temperature sensor is connected to
the boiler control unit. A 230 V cylinder
temperature controller is not required.
If a different DHW cylinder is connected,
the cylinder temperature sensor (acces-
sory) may also be used on this cylinder.
Alternatively, a 230 V cylinder tempera-
ture controller should be connected via
the cylinder demand junction box (part of
the boiler standard delivery).