Viessmann Vitodens 100-W Guide rapide

Installation and service

instructions

for contractors

VIESMANN

Vitodens 100-W

Type WB1C, 6.5 to 35.0 kW

Wall mounted gas condensing boiler

Natural gas and LPG version

Gas Council no.: 41-819-26 - 29, 47-819-20 - 22

For applicability, see the last page

VITODENS 100-W

5609 059 GB 5/2013 Please keep safe.

Please follow these safety instructions closely to prevent accidents and mate-

rial losses.

Safety instructions explained

Danger

This symbol warns against the

risk of injury.

!Please note

This symbol warns against the

risk of material losses and envi-

ronmental pollution.

Note

Details identified by the word "Note" con-

tain additional information.

Target group

These instructions are exclusively

designed for qualified personnel.

■ Work on gas equipment must only be

carried out by a qualified gas fitter.

■ Work on electrical equipment must

only be carried out by a qualified elec-

trician.

■ The system must be commissioned by

the system installer or a qualified per-

son authorised by the installer.

Regulations

Observe the following when working on

this system

■ all legal instructions regarding the pre-

vention of accidents,

■ all legal instructions regarding envi-

ronmental protection,

■ the Code of Practice of relevant trade

associations,

■ all current safety regulations as

defined by DIN, EN, DVGW, TRGI,

TRF, VDE and all locally applicable

standards,

■ Gas Safety (Installation & Use) Regu-

lations

– the appropriate Building Regulation

either the Building regulations, the

Building Regulation (Scotland),

Building Regulations (Northern Ire-

land),

– the Water Fittings Regulation or

Water Bylaws in Scotland,

– the current I.E.E. Wiring Regula-

tions.

If you smell gas

Danger

Escaping gas can lead to explo-

sions which may result in serious

injury.

■ Never smoke. Prevent naked

flames and sparks. Never

switch lights or electrical appli-

ances ON or OFF.

■ Close the gas shut-off valve.

■ Open windows and doors.

■ Remove all people from the

danger zone.

■ Notify your gas or electricity

supplier from outside the build-

ing.

■ Shut off the electricity supply to

the building from a safe place

(outside the building).

Safety instructions

5609 059 GB

If you smell flue gas

Danger

Flue gas can lead to life-threat-

ening poisoning.

■ Shut down the heating system.

■ Ventilate the boiler room.

■ Close all doors leading to the

living space.

Working on the system

■ When using gas as fuel, also close the

main gas shut-off valve and safeguard

against unauthorised reopening.

■ Isolate the system from the power sup-

ply and check that it is no longer 'live',

e.g. by removing a separate fuse or by

means of a main isolator.

■ Safeguard the system against unau-

thorised reconnection.

!Please note

Electronic modules can be dam-

aged by electro-static dis-

charges.

Touch earthed objects, such as

heating or water pipes, to dis-

charge static loads.

Repair work

!Please note

Repairing components which ful-

fil a safety function can compro-

mise the safe operation of your

heating system.

Replace faulty components only

with original Viessmann spare

parts.

Ancillary components, spare and

wearing parts

!Please note

Spare and wearing parts which

have not been tested together

with the heating system can com-

promise its function. Installing

non-authorised components and

non-approved modifications/con-

version can compromise safety

and may invalidate our warranty.

For replacements, use only orig-

inal spare parts from Viessmann

or those which are approved by

Viessmann.

Safety instructions

Safety instructions (cont.)

5609 059 GB

Installation instructions

Product information........................................................................................... 6

Preparing for installation................................................................................... 8

Installation sequence

Fitting the boiler and making connections............................................................ 12

Opening the control unit casing............................................................................ 18

Electrical connections........................................................................................... 19

Service instructions

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 25

Further details regarding the individual steps....................................................... 26

Troubleshooting

Function sequence and possible faults................................................................ 46

Fault messages on the display............................................................................. 47

Repairs................................................................................................................. 51

Gas type conversion

Converting from LPG to natural gas .................................................................... 61

Control unit

Functions and operating conditions in weather-compensated mode................... 63

Designs

Connection and wiring diagram............................................................................ 64

Parts lists

Ordering parts...................................................................................................... 66

Overview of the assemblies................................................................................. 67

Sheet metal parts assembly................................................................................. 68

Heat cell assembly............................................................................................... 69

Burner assembly.................................................................................................. 70

Hydraulic assembly.............................................................................................. 72

System boiler hydraulic assembly........................................................................ 74

Combi hydraulic assembly................................................................................... 76

Control unit assembly........................................................................................... 77

Miscellaneous assembly...................................................................................... 79

Specification....................................................................................................... 80

Index

5609 059 GB

Certificates

Declaration of conformity...................................................................................... 82

Keyword index.................................................................................................... 83

Index

Index (cont.)

5609 059 GB

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.

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).

Product information

5609 059 GB

Accessory connection

Cylinder temperature sensor, outside

temperature sensor and time switch are

connected to the control unit with low

voltage.

Product information

Product information (cont.)

5609 059 GB

Installation

Preparing for the boiler installation

Dimensions and connections

250

400

700

58 58

123123

AC E

156

350

125

860

150

AHeating flow

BGas condensing boiler:

Cylinder flow

Gas condensing combi boiler:

DHW

CGas connection

DGas condensing boiler:

Cylinder return

Gas condensing combi boiler:

Cold water

EHeating return

FCondensate drain/safety valve

drain: Plastic hose 7 22 mm

Preparing for installation

5609 059 GB

Minimum clearances

Maintain a clearance of 700 mm in front

of the Vitodens for maintenance purpo-

ses. Maintenance clearances to the l.h.

or r.h. side of the Vitodens are not

required.

Preparing for installation

Preparing for installation (cont.)

5609 059 GB

Installation

Fitting the wall mounting bracket

250

Ø10

145

AVitodens installation template

Preparing for installation

Preparing for installation (cont.)

5609 059 GB

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