Viessmann Vitodens 200-W System Bedienungsanleitung

Installation instructions

for contractors

VIESMANN

Vitodens 200-W

Type WB2C, 4.8 to 35.0 kW

Wall mounted gas condensing boiler

Natural gas and LPG version

Gas Council no.

41-819-14; 41-819-15; 41-819-16; 41-819-17 (system boilers)

47-819-09; 47-819-10; 47-819-11 (combi boilers)

VITODENS 200-W

5458 653 GB 4/2010 Dispose after installation.

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 appliances must only be

carried out by a qualified gas fitter.

■ Work on electrical equipment must

only be carried out by a qualified elec-

trician.

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) Reg-

ulations

– 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.

Working on the system

■ 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 mains isolator.

■ Safeguard the system against unau-

thorised reconnection.

■ When using gas as fuel, also close the

main gas shut-off valve and safeguard

against unauthorised reopening.

Safety instructions

5458 653 GB

Preparing for installation

Product information.............................................................................................. 4

Preparing for installation....................................................................................... 5

■ Preparing the boiler for installation................................................................... 5

Installation sequence

Installing the boiler and making all connections................................................... 8

Flue installation and connection........................................................................... 9

Connecting the safety valve drain/blow-off pipe................................................... 9

Condensate connection........................................................................................ 10

Gas connection.................................................................................................... 10

Opening the control unit casing............................................................................ 11

Electrical connections........................................................................................... 13

■ Routing the mains cable and other electrical accessories................................ 15

Closing the control unit casing and inserting the programming unit..................... 17

Fitting the front panel............................................................................................ 19

Commissioning and adjustment........................................................................... 19

Index

5458 653 GB

Vitodens 200-W, WB2C

Set up for operation with natural gas H.

For conversion to LPG P (without conversion kit), see the service instructions.

The Vitodens 200-W should generally only be delivered to those countries specified

on the type plate. For deliveries to alternative countries, an approved contractor must

on his own initiative arrange individual approval in accordance with the law of the

land.

All Vitodens 200-W WB2C up to 35kW have a built-in sealed system kit, circulating

pump and a diverter valve.

The system boilers have two pairs of heating flow / return pipes - the outer pair are

for central heating and the inner for the cylinder primaries. The hot water cylinder is

recommended to be controlled by a Viessmann cylinder temperature sensor, and if

it is an un-vented Vitocell cylinder, a 2-port valve and cylinder control stat is not

required.

The boiler is either supplied with a constant temperature controller (Vitotronic 100)

or a weather-compensated controller (Vitotronic 200).

The Vitotronic 100 (HO2A) provides a 7-day electronic timing for hot water and central

heating. A separate room thermostat may be fitted.

The Vitotronic 200 is a weather compensated controller and includes a 7-day timing

function, outdoor sensor as well as the option to control three separate heating circuits

with independent time and weather-compensated control. Additional remote control-

lers are available. A standard room thermostat can not be connected.

Product information

5458 653 GB

Preparing the boiler for installation

!Please note

To prevent equipment damage,

install all pipework free of load

and torque stresses.

For on-site preparation of gas,

water and electrical connections,

see installation aid or mounting

frame installation instructions.

Preparing for installation

5458 653 GB

≥ 5 360

450

100 215

≥ 5

≥ 350

730

1925H

850

63 63

130 130

128

A B C DEF K

AHeating flow Rp¾

BDHW Rp½ (gas combi boiler)

Cylinder flow G¾ (gas boiler)

CGas connection

DCold water Rp½ (gas combi boiler)

Cylinder return G¾ (gas boiler)

EHeating return Rp¾

FDrain & fill valve

GCable entry

HDimension with DHW cylinder

below

KCondensate drain

Preparing for installation (cont.)

5458 653 GB

Minimum clearances

Area around the Vitodens for mainte-

nance: min. 700 mm.

Maintenance clearances to the l.h. or r.h.

side of the Vitodens are not required.

Note

This boiler (protection: IP X4 D) is

approved for installation in wet rooms

inside safety zone 2 according to the cur-

rent I.E.E. Wiring Regulations.

The requirements of the I.E.E. Wiring

Regulations must be observed.

1. Prepare the water connections. Flush

the heating system thoroughly.

2. Prepare gas connection in compli-

ance with the The Gas Safety (Instal-

lation and Use) Regulations 1998.

3. Prepare the electrical connections.

■Power supply cable: 3 x 1.0 mm2,

2 m long is fitted in the delivered

condition.

Fuse max. 16 A, 230 V~, 50 Hz.

■ Accessory cables: e.g. type NYM

cable with the required number of

conductors for the external con-

nections.

■Allow all cables in area "G"

(behind the boiler) to protrude

1200 mm from the wall.

Preparing for installation (cont.)

5458 653 GB

A B C D E F

AHeating flow

BDHW (gas combi boiler)

Cylinder flow (gas boiler)

CGas connection

DCold water (gas combi boiler)

Cylinder return (gas boiler)

EHeating return

FDrain & fill valve

GInstallation template

Installing the boiler and making all connections

5458 653 GB

Note

If the gas condensing boiler is to be oper-

ated in weather-compensated mode and

with a DHW cylinder, connect the DHW

cylinder at cylinder flow B and cylinder

return D (four pipe connections).

Flue installation and connection

Connect the appropriate flue system as

per our flue gas system installations.

During installation and positioning of the

flue gas system, observe building regu-

lations part L and BS 5440 as well as the

flue gas system installations which are

provided with the boiler.

Flue gas system installation

instructions.

Connecting the safety valve drain/blow-off pipe

Connect safety valve A with visible out-

let to the household drain system or

route with visible outlet through the

external wall.

Installing the boiler and making all connections (cont.)

5458 653 GB

Connect the condensate drain with a

slope and a pipe vent to the public

sewer.

Observe the Building Regulations.

Where the condensate drain pipe is

routed outside, it must have a diameter

of at least 30 mm and must be protected

against frost through sufficient lagging of

the pipe. Avoid excessive pipe runs at

the outside wall.

Gas connection

Notes regarding operation with LPG.

We recommend the installation of an

external safety solenoid valve when

installing the boiler in rooms below

ground level.

1. Seal in gas shut-off valve A at the

gas connection.

2. Carry out a tightness test.

Note

For the tightness test, use only suita-

ble and approved leak detecting

agents (EN 14291) and devices.

Leak detecting agents with unsuita-

ble constituents (e.g. nitrites, sul-

phides) can lead to material dam-

age.

Remove residues of the leak detect-

ing agent after testing.

!Please note

Excessive test pressure may

damage the boiler and the gas

valve.

Max. test pressure 150 mbar.

Where higher pressure is

required for tightness tests,

separate the boiler and the

gas valves from the gas sup-

ply pipe (undo the fitting).

Condensate connection

5458 653 GB

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