Viessmann Vitodens 300 Bedienungsanleitung

VIESMANN

Installation instructions

for contractors

Vitodens 300

Type WB3A,49and66kW

Wall mounted gas fired condensing boiler

Natural gas and LPG version

VITODENS 300

5862 570 GB 10/2006 Dispose after installation.

Please follow these safety instructions closely to prevent accidents and

material 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

environmental pollution.

Note

Details identified by the word "Note"

contain 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 fit-

ter.

&Work on electrical equipment must

only be carried out by a qualified

electrician.

Regulations

Observe the following when working

on this system

&all legal instructions regarding the

prevention of accidents,

&all legal instructions regarding

environmental protection,

&theCodeofPracticeofrelevant

trade associations,

&all current safety regulations as

defined by DIN, EN, DVGW, TRGI,

TRF, VDE and all locally applicable

standards.

Workingonthesystem

&Isolate the system from the power

supply and check that it is no longer

'live', e.g. by removing a separate

fuse or by means of a mains isola-

tor.

&Safeguard the system against

unauthorised reconnection.

&When using gas as fuel, also close

the main gas shut‐off valve and

safeguard against unauthorised

reopening.

Safety instructions

5862 570 GB

Preparing for installation

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

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

&Preparing the boiler installation ................................................................ 5

Installation sequence

Installing the boiler and making all connections ........................................... 7

&Wall mounting bracket installation ............................................................ 7

&Hanging the boiler into the wall mounting bracket ..................................... 8

Heating water (primary) connection............................................................. 9

Flue connection .......................................................................................... 9

Condensate connection .............................................................................. 9

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

Opening the control unit enclosure .............................................................. 11

Electrical connections................................................................................. 12

&Routing connecting cables ....................................................................... 14

Closing the control unit enclosure and inserting the programming unit ......... 15

Front panel installation................................................................................ 16

Commissioning and adjustment .................................................................. 16

Index

5862 570 GB

Vitodens 300, WB3A

Set up for operation with natural gas E or LPG P.

The natural gas E version can be converted to natural gas LL using a conver-

sion kit.

TheLPGPversioncanbeconvertedtonaturalgasEorLLusingaconversion

kit.

Conversion for other target countries

The Vitodens 300 should generally only be delivered to those countries speci-

fied on the type plate. For deliveries to alternative countries, an approved con-

tractor must arrange, on his own initiative, for an individual approval in

accordance with the law of the land.

Product information

5862 570 GB

Preparing the boiler installation

AHeating flow G 1½"

BSafety valve

CCylinder flow G 1½"

DGas connection

ECylinder return G 1½"

FHeating return G 1½"

GExpansion vessel G 1"

HCable entry

KRecommended dimension

LCondensate drain

Preparing for installation

5862 570 GB

Note

This boiler (protection level: IP X4 D)

is approved for installation in wet

rooms inside protection area 1

according to DIN VDE 0100, providing

the occurrence of hosed water can be

excluded.

Observe the requirements of DIN VDE

0100.

1. Prepare the water connections.

Flush the heating system thor-

oughly.

2. Prepare the gas connection

accordingtoTRGIorTRF[orlocal

regulations].

3. Prepare the electrical connections.

&Power supply cable: NYM-

J3x1.5mm

, fuse max. 16 A,

230 V~.

&Accessory cables: NYM with the

required number of conductors

for the external connections.

&Allow all cables in area "H"to

protrude 1200 mm from the wall.

Preparing for installation (cont.)

5862 570 GB

Wall mounting bracket installation

Note

The enclosed screws and rawl plugs

are only suitable for concrete. For

other construction materials, use fix-

ings that are suitable for 110 kg loads.

AReference point: boiler top edge

BInstallation template (included

with the boiler)

CTopedgefinishedfloor

DRecommendation

Installing the boiler and making all connections

5862 570 GB

Hanging the boiler into the wall mounting bracket

Installing the boiler and making all connections (cont.)

5862 570 GB

AHeating flow

BDHW flow

CGas connection

DDHW return

EHeating return

FExpansion vessel

Connect the boiler to the on-site pipe-

work.

Flue connection

Connect the balanced flue pipe. Flue gas system installation

instructions.

Condensate connection

Connect the condensate drain with a

slopeandapipeventtothepublic

sewer.

Heating water (primary) connection

5862 570 GB

AGas connection

Notes regarding the operation with

LPG.

We recommend the installation of an

external safety solenoid valve when

installing the boiler in rooms below

ground level.

1. Carry out a gas soundness test.

!Please note

Excessive test pressure

may damage the boiler and

the gas valve.

Max. test pressure 150

mbar. Where higher pres-

sure is required for leak

tests, separate the boiler

and the gas valves from the

gas supply pipe (undo the

fitting).

2. Vent the gas supply pipe.

Conversion to other gas

types:

Conversion kit installation

instructions

Gas connection

5862 570 GB

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