Viessmann Vitodens 111-W Guide rapide

Installation and service

instructions

for contractors

VIESMANN

Vitodens 111-W

Type B1LB, 6.5 to 35.0 kW

Gas condensing storage combi boiler

Natural gas and LPG version

Gas Council Number: 47-819-36, 47-819-37

For applicability, see the last page

VITODENS 111-W

5677 219 GB 3/2015 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 inten-

ded for authorised contractors.

■ Work on gas installations must only be

carried out by a registered 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 to be observed

■ National installation regulations

■ Statutory regulations for the preven-

tion of accidents

■ Statutory regulations for environmen-

tal protection

■ Codes of practice of the relevant trade

associations

■ All current safety regulations as

defined by DIN, EN, DVGW, TRGI,

TRF, VDE and all locally applicable

standards

aÖNORM, EN, ÖVGW-TR Gas,

ÖVGW-TRF and ÖVE

cSEV, SUVA, SVGW, SVTI,

SWKI, VKF and EKAS guideline

1942: LPG, part 2

Safety instructions for working on the

system

Working on the system

■ Where gas is used as the fuel, close

the main gas shut-off valve and safe-

guard it against unintentional reopen-

ing.

■ Isolate the system from the power sup-

ply, e.g. by removing the separate fuse

or by means of a mains isolator, and

check that it is no longer 'live'.

■ Safeguard the system against recon-

nection.

Danger

Hot surfaces can cause burns.

■ Before maintenance and serv-

ice work, switch OFF the appli-

ance and let it cool down.

■ Never touch hot surfaces on

the boiler, burner, flue system

or pipework.

Safety instructions

5677 219 GB

!Please note

Electronic assemblies can be

damaged by electrostatic dis-

charge.

Prior to commencing work, touch

earthed objects such as heating

or water pipes to discharge static

loads.

Repair work

!Please note

Repairing components that fulfil a

safety function can compromise

the safe operation of the sys-

tem.

Replace faulty components only

with genuine Viessmann spare

parts.

Auxiliary components, spare and

wearing parts

!Please note

Spare and wearing parts that

have not been tested together

with the system can compromise

its function. Installing non-author-

ised components and making

non-approved modifications or

conversions can compromise

safety and may invalidate our

warranty.

For replacements, use only orig-

inal spare parts supplied or

approved by Viessmann.

Safety instructions for operating the

system

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.

■ Evacuate any people from the

danger zone.

■ Notify your gas or electricity

supply utility from outside the

building.

■ Have the power supply to the

building shut off from a safe

place (outside the building).

If you smell flue gas

Danger

Flue gas can lead to life threat-

ening poisoning.

■ Shut down the heating system.

■ Ventilate the installation site.

■ Close doors to living spaces to

prevent flue gases from

spreading.

Safety instructions

Safety instructions (cont.)

5677 219 GB

What to do if water escapes from the

appliance

Danger

When water escapes from the

appliance there is a risk of elec-

trocution.

Switch off the heating system by

means of an external isolator (for

example fuse box, domestic

power distribution).

Flue systems and combustion air

Ensure that flue systems are clear and

cannot be sealed, for instance due to

accumulation of condensate or other

causes. Ensure an adequate supply of

combustion air.

Instruct system users that subsequent

modifications to the building characteris-

tics are not permissible (e.g. cable/pipe-

work routing, cladding or partitions).

Danger

Leaking or blocked flue systems,

or an inadequate supply of com-

bustion air can cause life threat-

ening poisoning from carbon

monoxide in the flue gas.

Ensure the flue system is in good

working order. Apertures for sup-

plying combustion air must be

non-closable.

Extractors

Operating appliances that extract air to

the outside (cooker hoods, extractors, air

conditioning units, etc.) can create neg-

ative pressure. If the boiler is operated at

the same time, this can lead to reverse

flow of the flue gas.

Danger

The simultaneous operation of

the boiler and appliances that

extract air to the outside can

result in life threatening poison-

ing due to reverse flow of the flue

gas.

Fit an interlock circuit or take suit-

able steps to ensure an adequate

supply of combustion air.

Safety instructions

Safety instructions (cont.)

5677 219 GB

Installation instructions

Information

Disposal of packaging.......................................................................................... 7

Symbols................................................................................................................ 8

Intended use......................................................................................................... 9

Product information.............................................................................................. 9

Preparing for boiler installation............................................................................. 11

Installation sequence

Fitting the wall mounting bracket.......................................................................... 13

Mounting the boiler and making the connections................................................. 14

Opening the control unit enclosure....................................................................... 20

Electrical connections........................................................................................... 21

Service instructions

Commissioning, inspection, maintenance

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

Further details regarding the individual steps....................................................... 27

Troubleshooting

Function sequence and possible faults................................................................ 54

Fault display......................................................................................................... 55

Repairs................................................................................................................. 59

Gas type conversion

Converting from LPG to natural gas..................................................................... 68

Control unit

Functions and operating conditions in weather-compensated mode................... 70

Designs

Connection and wiring diagram............................................................................ 72

Parts lists

Ordering parts...................................................................................................... 74

Overview of assemblies....................................................................................... 75

Casing assembly.................................................................................................. 76

Heat cell assembly............................................................................................... 78

Burner assembly.................................................................................................. 80

Hydraulic assembly.............................................................................................. 82

Aqua-plate assembly............................................................................................ 84

Control unit assembly........................................................................................... 86

Index

5677 219 GB

Cylinder module assembly................................................................................... 88

Cylinder assembly................................................................................................ 90

Miscellaneous....................................................................................................... 91

Specification....................................................................................................... 92

Disposal

Final decommissioning and disposal.................................................................... 93

Certificates

Declaration of conformity...................................................................................... 94

Keyword index.................................................................................................... 95

Index

Index (cont.)

5677 219 GB

Please dispose of waste packaging in

line with statutory regulations.

Information

Disposal of packaging

5677 219 GB

Installation

Sym-

bol

Meaning

Reference to other document

containing further information

Step in a diagram:

The numbers correspond to the

order in which the steps are car-

ried out.

Warning of material losses and

environmental pollution

Live electrical area

Pay particular attention.

■ Component must audibly

click into place.

■ Acoustic signal

■ Fit new component.

■ In conjunction with a tool:

Clean the surface.

Dispose of component correct-

ly.

Dispose of component at a suit-

able collection point. Do not

dispose of component in do-

mestic waste.

Information

Symbols

5677 219 GB

The appliance is only intended to be

installed and operated in sealed unven-

ted heating systems that comply with

EN 12828, with due attention paid to the

associated installation, service and

operating instructions. It is only designed

for the heating of water that is of potable

water quality.

Intended use presupposes that a fixed

installation in conjunction with permissi-

ble, system-specific components has

been carried out.

Commercial or industrial usage for a pur-

pose other than heating the building or

DHW shall be deemed inappropriate.

Any usage beyond this must be

approved by the manufacturer in each

individual case.

Incorrect usage or operation of the appli-

ance (e.g. the appliance being opened

by the system user) is prohibited and will

result in an exclusion of liability. Incorrect

usage also occurs if the components in

the heating system are modified from

their intended use (e.g. if the flue gas and

ventilation air paths are sealed).

Product information

Vitodens 111-W, type B1LB

Preset for operation with natural gas.

Conversion to LPG P requires a gas con-

version kit.

Conversion for other countries

The Vitodens 111-W must only be deliv-

ered to the countries specified on the

type plate. For deliveries to alternative

countries, an approved contractor must

arrange individual approval on his/her

own initiative and in accordance with the

law of the country in question.

Product description

The Vitodens 111-W is equipped with a

cylinder and an integral plate heat

exchanger as cylinder loading system for

DHW heating. For the connection of

heating circuits and DHW line, see

page 15 onwards.

In the delivered condition, the

Vitodens 111-W is set up for operation

with constant boiler water temperature.

By connecting an outside temperature

sensor (accessories), the boiler can be

operated in weather-compensated

mode.

Information

Intended use

5677 219 GB

Installation

The appliance is equipped with a sealed

unvented hydraulic system with 2 con-

nections for heating flow and return and

2 connections for DHW heating.

The following components are integra-

ted into the hydraulic system:

■ Circulation pump

■ 3-way diverter valve

■ Safety valve

■ Heating water expansion vessel and

DHW expansion vessel

■ Cylinder and plate heat exchanger for

DHW heating

Connecting accessories

Outside temperature sensor and time

switch are connected with low voltage to

the control unit.

Information

Product information (cont.)

5677 219 GB

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