Viessmann Vitodens 200-W System Istruzioni operative

Service instructions

for contractors

VIESMANN

Vitodens 200-W

Type WB2C, 45 and 60 kW

Wall mounted gas condensing boiler

Natural gas and LPG version

For applicability, see the last page

VITODENS 200-W

5692 843 GB 1/2010 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

5692 843 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.)

5692 843 GB

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 6

Further details regarding the individual steps....................................................... 8

Code 1

Calling up coding level 1...................................................................................... 41

General/Group "1"................................................................................................ 42

Boiler/Group "2".................................................................................................... 44

DHW/Group "3".................................................................................................... 45

Solar/Group "4".................................................................................................... 46

Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"............................. 47

Code 2

Calling up coding level 2...................................................................................... 55

General/Group "1"................................................................................................ 56

Boiler/Group "2".................................................................................................... 65

DHW/Group "3".................................................................................................... 66

Solar/Group "4".................................................................................................... 69

Heating circuit 1, heating circuit 2, heating circuit 3/Group "5"............................. 76

Diagnosis and service scans

Calling up the service menu................................................................................. 86

Diagnosis.............................................................................................................. 86

Checking outputs (relay test)................................................................................ 92

Troubleshooting

Fault display......................................................................................................... 95

Fault codes........................................................................................................... 97

Repairs................................................................................................................. 109

Function description

Constant temperature control unit........................................................................ 117

Weather-compensated control unit...................................................................... 118

Internal extensions (accessories)......................................................................... 119

External extensions (accessories)........................................................................ 121

Control functions.................................................................................................. 125

Assigning the heating circuits to the remote control............................................. 132

Electronic combustion controller.......................................................................... 132

Designs

Connection and wiring diagram – internal connections ....................................... 134

Connection and wiring diagram – external connections....................................... 135

Index

5692 843 GB

Parts lists............................................................................................................ 137

Commissioning/service reports

............................................................................................................................. 142

Specification....................................................................................................... 143

Certificates

Declaration of conformity...................................................................................... 144

Manufacturer's certificate according to the 1st BImSchV [Germany]................... 144

Keyword index.................................................................................................... 145

Index

Index (cont.)

5692 843 GB

For further information regarding the individual steps, see the page indicated

Commissioning steps

Inspection steps

Maintenance steps Page

••• 1. Opening the boiler.......................................................... 8

•2. Filling the heating system.............................................. 9

•3. Venting the boiler by flushing....................................... 10

•4. Selecting the language (if required) – only for

weather-compensated control units............................. 10

• • 5. Setting the time and date (if required) – only for

weather-compensated control units............................. 10

•6. Venting the heating system........................................... 11

•7. Filling the siphon with water......................................... 11

••• 8. Checking all connections on the heating water side

and DHW side for leaks

•9. Checking the power supply connection

•10. Designating heating circuits – only for weather-

compensated control units............................................ 12

• • 11. Checking the gas type.................................................... 12

•12. Gas type conversion (only for operation with LPG).... 13

••• 13. Function sequence and possible faults....................... 13

••• 14. Checking the static and supply pressure..................... 15

•15. Setting the maximum output......................................... 17

•16. Checking the balanced flue system for tightness

(annular gap check)........................................................ 18

• • 17. Removing the burner and checking the burner gasket 19

• • 18. Checking the burner gauze assembly & replacing if

required........................................................................... 21

• • 19. Checking and adjusting the ignition and ionisation

electrodes........................................................................ 22

• • 20. Cleaning the combustion chamber/heat exchanger

and installing the burner................................................ 22

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance

5692 843 GB

Commissioning steps

Inspection steps

Maintenance steps Page

• • 21. Checking the condensate drain and cleaning the

siphon.............................................................................. 24

• • 22. Checking the neutralising system (if installed)

• • 23. Checking the diaphragm expansion vessel and

system pressure............................................................. 24

••• 24. Checking the function of safety valves

••• 25. Checking electrical connections for tightness

••• 26. Checking gas equipment for tightness at operating

pressure .......................................................................... 25

••• 27. Flue gas emissions test................................................. 25

••• 28. Checking the external LPG safety valve (if installed)

•29. Matching the control unit to the heating system ........ 27

•30. Adjusting the heating curves (only for weather-

compensated control units)........................................... 34

•31. Connecting the control unit to the LON system (only

for weather-compensated control units)...................... 37

•32. Scanning and resetting the "Service" display............. 39

•33. Instructing the system user........................................... 40

Commissioning, inspection, maintenance

Steps - commissioning, inspection and… (cont.)

5692 843 GB

Opening the boiler

Commissioning, inspection, maintenance

Further details regarding the individual steps

5692 843 GB

Filling the heating system

!Please note

Unsuitable fill water increases the level of deposits and corrosion and may

lead to boiler damage.

■ Thoroughly flush the entire heating system prior to filling it with water.

■ Only use fill water of potable quality.

■ Soften fill water with a water hardness in excess of the following values, e.g.

with a small softening system for heating water (see the Viessmann Vitoset

pricelist):

– Vitodens 200-W to 45 kW: 16.8 °dH (3.0 mol/m3)

– Vitodens 200-W from 60 kW and multi-boiler systems: 11.2 °dH

(2.0 mol/m3)

■ An antifreeze additive suitable for heating systems can be added to the fill

water. The antifreeze manufacturer must verify its suitability.

1. Check the pre-charge pressure of the

diaphragm expansion vessel.

2. Close the gas shut-off valve.

3. Fill the heating system at the boiler

drain & fill valve A (on the connec-

tion set, accessories or on-site). Min-

imum system pressure > 1.0 bar.

4. Close boiler drain & fill valve A.

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5692 843 GB

Venting the boiler by flushing

1. Close the shut-off valves on the heat-

ing water side.

2. Connect the drain hose at boiler drain

& fill valve B (on the connection set,

accessories or on-site).

3. Open valves A and B and vent

using mains pressure until no more

air noise is audible.

4. Close valves A and B and open

the heating water shut-off valves.

Selecting the language (if required) – only for weather-compen-

sated control units

Note

At the commissioning stage, the display

is in German (default setting)

Extended menu:

1. å

2. "Settings"

3. "Language"

Sprache

Cesky CZ

Deutsch DE

Dansk

English

Wählen mit

4. Set the required language with /.

Setting the time and date (if required) – only for weather-com-

pensated control units

During commissioning, or after pro-

longed time out of use, the time and date

need to be reset.

Extended menu:

1. å

2. "Settings"

Commissioning, inspection, maintenance

Further details regarding the individual steps (cont.)

5692 843 GB

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