Viessmann Vitodens 200-W System Betriebsanleitung
Service instructions
for contractors
VIESMANN
Vitodens 200-W
Type WB2C, 80 and 105 kW
Wall mounted gas condensing boiler
Natural gas and LPG version
For applicability, see the last page
VITODENS 200-W
5692 902 GB 3/2011 Please keep safe.
2
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
Safety instructions
5692 902 GB
3
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 902 GB
4
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 6
Further details regarding the individual steps....................................................... 8
Code 1
Calling up coding level 1...................................................................................... 39
General/group "1"................................................................................................. 40
Boiler/group "2".................................................................................................... 42
DHW/group "3"..................................................................................................... 43
Solar/group "4"..................................................................................................... 44
Heating circuit 1, heating circuit 2, heating circuit 3/group "5"............................. 46
Code 2
Calling up coding level 2...................................................................................... 53
General/group "1"................................................................................................. 54
Boiler/group "2".................................................................................................... 62
DHW/group "3"..................................................................................................... 64
Solar/group "4"..................................................................................................... 66
Heating circuit 1, heating circuit 2, heating circuit 3/group "5"............................. 73
Diagnosis and service scans
Calling up the service level................................................................................... 81
Diagnosis.............................................................................................................. 82
Checking outputs (relay test)................................................................................ 88
Troubleshooting
Fault display......................................................................................................... 90
Fault codes........................................................................................................... 92
Repair................................................................................................................... 106
Function description
Constant temperature control unit........................................................................ 112
Weather-compensated control unit...................................................................... 113
Internal extensions (accessories)......................................................................... 114
External extensions (accessories)........................................................................ 116
Control functions.................................................................................................. 120
Allocating heating circuits to the remote control................................................... 127
Electronic combustion controller.......................................................................... 127
Designs
Connection and wiring diagram – internal connections ....................................... 129
Connection and wiring diagram – external connections....................................... 130
Index
Index
5692 902 GB
5
Parts list
Heat cell assembly............................................................................................... 132
Burner assembly.................................................................................................. 134
Hydraulic assembly.............................................................................................. 135
Sheet metal parts assembly................................................................................. 136
VBC134-A04.102 control unit assembly............................................................... 137
Miscellaneous....................................................................................................... 138
Commissioning/service reports
............................................................................................................................. 140
Specification....................................................................................................... 141
Certificates
Declaration of conformity...................................................................................... 142
Manufacturer's certificate according to the 1st BImSchV [Germany]................... 142
Keyword index.................................................................................................... 143
Index
Index (cont.)
5692 902 GB
6
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............................. 11
•6. Venting the heating system........................................... 11
•7. Filling the siphon with water......................................... 12
••• 8. Checking all connections on the heating water side
and DHW side for leaks
•9. Checking the power supply
•10. Designating heating circuits – only for weather-
compensated control units............................................ 12
• • 11. Checking the gas type.................................................... 13
•12. Gas type conversion (only for operation with LPG).... 13
••• 13. Function sequence and possible faults....................... 14
••• 14. Checking the static and supply pressure..................... 16
•15. Maximum output setting................................................ 18
•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........................................................................... 20
• • 19. Checking and adjusting the ignition and ionisation
electrodes........................................................................ 21
• • 20. Cleaning the combustion chamber/heat exchanger
and installing the burner................................................ 22
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5692 902 GB
7
Commissioning steps
Inspection steps
Maintenance steps Page
• • 21. Checking the condensate drain and cleaning the
siphon.............................................................................. 23
• • 22. Checking the neutralising system (if installed)
• • 23. Checking the diaphragm expansion vessel and
system pressure............................................................. 23
••• 24. Checking the function of safety valves
••• 25. Checking electrical connections for firm seating
••• 26. Checking gas equipment for tightness at operating
pressure .......................................................................... 24
••• 27. Flue gas emissions test................................................. 24
••• 28. Checking the external LPG safety valve (if installed)
•29. Matching the control unit to the heating system ........ 26
•30. Adjusting the heating curves (only for weather-
compensated control units)........................................... 33
•31. Connecting the control unit to the LON....................... 35
•32. Scanning and resetting the "Service" display............. 37
•33. Instructing the system user........................................... 38
Commissioning, inspection, maintenance
Steps - commissioning, inspection and… (cont.)
5692 902 GB
8
Opening the boiler
4.
2x
2.
3.
1.
Commissioning, inspection, maintenance
Further details regarding the individual steps
5692 902 GB
9
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):
Single boiler systems and multi boiler systems ≤ 200 kW:
11.2 °dH (2.0 mol/m3)
Multi boiler systems > 200 kW: 8.4 °dH (1.5 mol/m3)
■ An antifreeze additive suitable for heating systems can be added to the fill
water. The antifreeze manufacturer must verify its suitability.
A
1. Check the pre-charge pressure of the
diaphragm expansion vessel.
2. Close the gas shut-off valve.
3. Fill the heating system via boiler drain
& fill valve A. (Minimum system
pressure > 1.0 bar).
4. Close boiler drain & fill valve A.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 902 GB
10
Venting the boiler by flushing
E D
C
B
F
A
1. Close shut-off valves A and B.
2. Connect the drain hose to drain valve
C.
Connect the fill hose to boiler drain &
fill valve F (if no longer connec-
ted).
3. Close shut-off valve D.
4. Open valve F.
5. Vent the first indirect coil through
shut-off valve E at mains pressure
until no more air noise is audible.
6. Close shut-off valve E and open
shut-off valve D.
7. Vent the second indirect coil through
shut-off valve D at mains pressure
until no more air noise is audible.
8. Close valves C and F.
9. Open shut-off valve E.
Note
Shut-off valves D and E must be
open to enable the boiler to operate.
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"
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 902 GB
Andere Handbücher für Vitodens 200-W System
44
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