Viessmann Vitodens 100 Series Guide rapide

Installation and service

instructions

for contractors

VIESMANN

Vitodens 100

6.5 to 35.0 kW

Wall mounted gas condensing boiler

Natural gas version

For applicability, see the last page

VITODENS 100

5837148 HK 11/2018 Please keep safe.

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 envi-

ronmental pollution.

Note

Details identified by the word "Note"

contain additional information.

Target group

These instructions are exclusively

intended for qualified contractors.

■ Work on gas installations may only

be carried out by a registered gas fit-

ter.

■ Work on electrical equipment may

only be carried out by a qualified

electrician.

■ The system must be commissioned

by the system installer or a qualified

person 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

■ Relevant country-specific safety reg-

ulations

Safety instructions

5837148

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

supply, 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.

■ Wear suitable personal protective

equipment when carrying out any

work.

Danger

Hot surfaces and fluids can lead

to burns or scalding.

■ Before maintenance and serv-

ice work, switch OFF the

appliance and let it cool down.

■ Never touch hot surfaces on

the boiler, burner, flue system

or pipework.

!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 dis-

charge static loads.

Repair work

!Please note

Repairing components that fulfil

a safety function can compro-

mise the safe operation of the

system.

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 compro-

mise its function. Installing non-

authorised components and

making non-approved modifica-

tions or conversions can com-

promise safety and may invalid-

ate our warranty.

For replacements, use only orig-

inal spare parts supplied or

approved by Viessmann.

Safety instructions

Safety instructions (cont.)

5837148

Safety instructions for operating the system

If you smell gas

Danger

Escaping gas can lead to explo-

sions which may result in seri-

ous injury.

■ Do not 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 sys-

tem.

■ Ventilate the installation site.

■ Close doors to living spaces

to prevent flue gases from

spreading.

What to do if water escapes from the

appliance

Danger

If water escapes from the appli-

ance there is a risk of electrocu-

tion.

Switch OFF the heating system

at the external isolator (e.g. fuse

box, domestic distribution

board).

Danger

If water escapes from the appli-

ance there is a risk of scalding.

Never touch hot heating water.

Condensate

Danger

Contact with condensate can be

harmful to health.

Never let condensate touch your

skin or eyes and do not swallow

it.

Flue systems and combustion air

Ensure that flue systems are clear and

cannot be sealed, for instance due to

accumulation of condensate or other

external causes.

Ensure an adequate supply of combus-

tion air.

Inform system users that subsequent

modifications to the building character-

istics are not permissible (e.g. cable/

pipework routing, cladding or parti-

tions).

Safety instructions

Safety instructions (cont.)

5837148

Danger

Leaking or blocked flue sys-

tems, or an inadequate supply

of combustion air can cause life

threatening poisoning from car-

bon monoxide in the flue gas.

Ensure the flue system is in

good working order. Vents for

supplying combustion air must

be non-sealable.

Extractors

Operating appliances that exhaust air

to the outside (extractor hoods, extrac-

tors, air conditioning units, etc.) can

create negative pressure. If the boiler is

operated at the same time, this can

lead to a reverse flow of 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 a reverse flow of flue

gas.

Fit an interlock circuit or take

suitable steps to ensure an ade-

quate supply of combustion air.

Safety instructions

Safety instructions (cont.)

5837148

Service instructions

Warning notices

Warning notices according to GB25034-2010...................................................... 8

Frost protection.................................................................................................... 9

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

Notes on siting, installation and operation............................................................ 10

Information

Symbols................................................................................................................ 11

Installation instructions

Preparing for installation................................................................................... 12

Installation sequence

Mounting the boiler and making connections....................................................... 15

Opening the control unit enclosure....................................................................... 25

Electrical connections........................................................................................... 26

Service instructions

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 33

Further details regarding the individual steps....................................................... 35

Parameter

Main parameter level............................................................................................ 55

Parameter level 1................................................................................................. 57

Parameter level 2................................................................................................. 59

Diagnostics

Function sequence and possible faults................................................................ 61

Overview of checks.............................................................................................. 62

Status checks....................................................................................................... 62

Meter checks........................................................................................................ 64

Troubleshooting

Fault display......................................................................................................... 66

Repairs................................................................................................................. 70

Control unit

Weather-compensated operation......................................................................... 81

Index

5837148

Designs

Connection and wiring diagram............................................................................ 83

Parts lists

Ordering parts...................................................................................................... 85

Overview of assemblies....................................................................................... 86

Casing assembly.................................................................................................. 87

Heat cell assembly............................................................................................... 89

Burner assembly.................................................................................................. 91

Hydraulic assembly.............................................................................................. 93

Hydraulic assembly, system boiler....................................................................... 95

Hydraulic assembly, combi boiler......................................................................... 97

Control unit assembly........................................................................................... 99

Miscellaneous assembly...................................................................................... 101

Specification....................................................................................................... 102

Certificates

Manufacturer's declaration for Vitodens 100 CC.................................................. 109

Keyword index.................................................................................................... 110

Index

Index (cont.)

5837148

Warning against incorrect use:

■ A faulty installation can lead to injury

and material losses.

■ The appliance must be installed in

accordance with the instructions and

applicable legal regulations.

■ Only engineers or persons approved

by the manufacturer may repair the

appliance or replace parts of it.

■ To ensure the safety of the product,

only original accessories can be

used.

■ The original flue pipe must be used.

Flue pipes of any other type must not

be used. The concentric flue pipe

must not be replaced by a single flue

pipe.

■ If it is necessary to replace the gas

governor or controls, please contact

the manufacturer.

■ Do not purchase any equipment

modified by dealers; only purchase

the manufacturer's original product.

This is the only way to ensure the

safety of the appliance.

■ When installing the appliance, install

a shut-off valve in the gas supply line.

■ Do not install the appliance near

electrical equipment with a strong

electromagnetic field, such as an

electromagnetic oven or microwave.

■ Do not remove any sealed parts from

the appliance.

■ Do not use caustic cleaning agents to

clean the appliance.

■ The appliance must not be installed

in bedrooms, living rooms or bath-

rooms.

■ Ensure that the appliance is not oper-

ated by children or other persons

who do not use it. Ensure that chil-

dren do not play with the appliance.

■ The overheating safety valve and the

hot water drain valve may only be

operated by specialists or competent

persons.

■ Do not install the appliance in closed

rooms.

■ After maintenance or inspection of

the appliance, the results must be

noted on the appliance by the main-

tenance or inspection engineer.

■ The power supply to the room must

be earthed.

The switch connected to the appli-

ance must not be located in a room

with a bath or shower.

The closure and the closure seal

must be checked.

■ Explain the frost protection measures

for the appliance to the user. The

user can add antifreeze to the heat-

ing water circuit if the appliance is not

operated for a long period in winter.

Otherwise the appliance or pipes can

be damaged by freezing.

Warning notices

Warning notices according to GB25034-2010

5837148

!Please note

Frost protection is only guaran-

teed with a reliable power sup-

ply, gas supply and sufficient

heating water content.

Following installation or repairs,

switch ON the power supply

(MCB/fuse, mains isolator) and

the control unit ON/OFF switch.

Open the gas shut-off valve to

ensure frost protection.

Intended use

The appliance is only intended to be

installed and operated in sealed unven-

ted heating systems that comply with

EN 12828 and CECS 215, with due

attention paid to the associated installa-

tion, service and operating instructions.

It is only designed for heating up heat-

ing water that is of potable water qual-

ity.

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

purpose 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

appliance (e.g. the appliance being

opened by the system user) is prohibi-

ted and will result in an exclusion of lia-

bility. 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).

Warning notices

Frost protection

5837148

Service

■ Installation, maintenance and service

must be carried out by an authorised

contractor.

■ The boiler installation must meet the

following local requirements:

– Safety conditions for the gas sup-

ply

– Guidelines for water supply and

waste water disposal

– Construction guidelines

■ The surface temperatures of the

boiler and flue system do not neces-

sitate any safety clearances for fire

protection.

■ After installation, the heating contrac-

tor should mark the position of the

flue system and instruct the system

user about operation and the safety

regulations.

■ The appliance power cable and leads

may only be replaced by an author-

ised contractor or a specialist author-

ised by the contractor.

■ To ensure trouble-free and efficient

operation, the heating system should

be checked and serviced once a year

by an authorised contractor.

Warning notices

Notes on siting, installation and operation

5837148

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