Viessmann Vitodens 200-W B2HA series Quick guide

Installation and service instructions
for contractors
VIESMANN
Vitodens 200-W
Type B2HA, 69 to 99 kW
Wall mounted gas condensing boiler
Natural gas and LPG version
VITODENS 200-W
5817493 GB 7/2019 Please keep safe.

2
Please follow these safety instruc-
tions 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 environmen-
tal pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are exclusively inten-
ded for qualified contractors.
■Work on gas installations may only be
carried out by a registered gas fitter.
■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 per-
son authorised by the installer.
Regulations to be observed
■National installation regulations
■Statutory regulations for the prevention
of accidents
■Statutory regulations for environmental
protection
■Codes of practice of the relevant trade
associations
■Relevant country-specific safety regu-
lations
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.
■Wear suitable personal protective
equipment when carrying out any work.
Safety instructions
Safety instructions
5817493

3
Danger
Hot surfaces and fluids can lead to
burns or scalding.
■Before maintenance and service
work, switch OFF the appliance
and let it cool down.
■Never touch hot surfaces on the
boiler, burner, flue system or pipe-
work.
!Please note
Electronic assemblies can be dam-
aged by electrostatic discharge.
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 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 compromise its func-
tion. Installing non-authorised com-
ponents and making non-approved
modifications or conversions can
compromise safety and may invalid-
ate our warranty.
For replacements, use only original
spare parts supplied or approved by
Viessmann.
Safety instructions
Safety instructions (cont.)
5817493

4
Safety instructions for operating the system
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■Do not smoke. Prevent naked
flames and sparks. Never switch
lights or electrical appliances 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 sup-
ply 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 threatening
poisoning.
■Shut down the heating system.
■Ventilate the installation site.
■Close doors to living spaces to
prevent flue gases from spread-
ing.
What to do if water escapes from the
appliance
Danger
If water escapes from the appliance
there is a risk of electrocution.
Switch OFF the heating system at
the external isolator (e.g. fuse box,
domestic distribution board).
Danger
If water escapes from the appliance
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 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 combus-
tion air can cause life threatening
poisoning from carbon monoxide in
the flue gas.
Ensure the flue system is in good
working order. Vents for supplying
combustion air must be non-seala-
ble.
Extractors
Operating appliances that exhaust air to
the outside (extractor hoods, extractors,
air conditioning units, etc.) can create
negative pressure. If the boiler is oper-
ated at the same time, this can lead to a
reverse flow of flue gas.
Safety instructions
Safety instructions (cont.)
5817493

5
Danger
The simultaneous operation of the
boiler and appliances that exhausts
air to the outside can result in life
threatening poisoning due to a
reverse flow of flue gas.
Fit an interlock circuit or take suita-
ble steps to ensure an adequate
supply of combustion air.
Safety instructions
Safety instructions (cont.)
5817493

6
1. Information Disposal of packaging ............................................................................ 8
Symbols ................................................................................................. 8
Intended use .......................................................................................... 8
Product information ................................................................................ 9
■Vitodens 200-W, type B2HA ............................................................... 9
■System examples ............................................................................... 9
■Spare parts lists .................................................................................. 9
2. Preparing for installation ................................................................................................................ 10
3. Installation sequence Mounting the boiler and making connections ........................................ 12
■Fitting the wall mounting bracket ........................................................ 12
■Hooking the boiler onto the wall mounting bracket and levelling it ..... 13
Connection on the heating water side ................................................... 13
■Connection set with integral low loss header ..................................... 14
■Connection set without low loss header ............................................. 15
Flue gas connection ............................................................................... 15
Condensate connection ......................................................................... 16
Gas connection ...................................................................................... 16
Opening the control unit enclosure ........................................................ 16
Electrical connections ............................................................................ 18
■Circulation pump at plug sÖ ................................................................ 19
■Circulation pump at plug sA ................................................................ 22
■External demand via switching contact .............................................. 23
■External demand via 0 – 10 V input .................................................... 23
■External blocking via switching contact .............................................. 24
■Outside temperature sensor ! .......................................................... 25
■Power supply for accessories at plug lH (230 V ~) ............................ 25
■Power supply fÖ ................................................................................. 27
■Routing connecting cables ................................................................. 27
Closing the control unit enclosure and inserting the programming unit . 29
4. Commissioning, inspec-
tion, maintenance
Steps - commissioning, inspection and maintenance ............................ 30
5. Code 1 Calling up coding level 1 ........................................................................ 54
General/group "1" .................................................................................. 54
Boiler/group "2" ...................................................................................... 56
DHW/group "3" ...................................................................................... 57
Solar/group "4" ....................................................................................... 57
Heating circuit 1, heating circuit 2, heating circuit 3/group "5" ............... 58
6. Code 2 Calling up coding level 2 ........................................................................ 63
General/group "1" .................................................................................. 63
Boiler/group "2" ...................................................................................... 69
DHW/group "3" ...................................................................................... 70
Solar/group "4" ....................................................................................... 71
Heating circuit 1, heating circuit 2, heating circuit 3/group "5" ............... 74
7. Diagnosis and service
scans
Service level .......................................................................................... 80
Diagnosis ............................................................................................... 81
■Operating data .................................................................................... 81
■Brief scan ............................................................................................ 81
Checking outputs (relay test) ................................................................. 84
■Weather-compensated control unit ..................................................... 84
■Constant temperature control unit ...................................................... 84
8. Troubleshooting Fault display ........................................................................................... 86
■Weather-compensated control unit ..................................................... 86
■Constant temperature control unit ...................................................... 86
Index
Index
5817493

7
Fault codes ............................................................................................ 87
Maintenance .......................................................................................... 95
■Checking the outside temperature sensor (weather-compensated
control unit) ......................................................................................... 95
■Checking the boiler water temperature sensors, cylinder tempera-
ture sensor or flow temperature sensor for the low loss header ......... 96
■Checking the flue gas temperature sensor ......................................... 96
■Checking the fuse ............................................................................... 97
■Mixer extension kit .............................................................................. 98
■Checking the Vitotronic 200-H (accessories) ...................................... 99
9. Function description Constant temperature control unit ......................................................... 100
■Heating mode ..................................................................................... 100
■DHW heating ...................................................................................... 100
Weather-compensated control unit ........................................................100
■Heating mode ..................................................................................... 101
■DHW heating ...................................................................................... 101
■Boosting DHW heating ....................................................................... 101
Internal extensions (accessories) .......................................................... 101
■Internal H1 extension ..........................................................................101
■Internal H2 extension ..........................................................................102
External extensions (accessories) ......................................................... 103
■AM1 extension .................................................................................... 103
■EA1 extension .................................................................................... 104
Control functions ....................................................................................105
■External operating program changeover ............................................ 105
■External blocking ................................................................................ 106
■External demand ................................................................................ 106
■Venting program ................................................................................. 107
■Screed drying ..................................................................................... 107
■Raising the reduced room temperature .............................................. 109
■Reducing the heat-up time ................................................................. 109
Assigning heating circuits to the remote control .................................... 110
Electronic combustion control unit ......................................................... 111
10. Connection and wiring dia-
gram
Connection and wiring diagram – internal connections ......................... 112
Connection and wiring diagram – external connections ........................ 113
11. Commissioning/service
reports
Report .................................................................................................... 114
12. Specification ................................................................................................................ 115
13. Disposal Final decommissioning and disposal ..................................................... 117
14. Certificates Declaration of conformity ....................................................................... 118
■Manufacturer's declaration ................................................................. 118
Manufacturer's certificate according to the 1st BImSchV [Germany] .... 118
15. Keyword index ................................................................................................................ 119
Index
Index (cont.)
5817493

8
Please dispose of packaging waste in line with statu-
tory regulations.
Symbols
Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
■Component must audibly click into place.
or
■Acoustic signal
■Fit new component.
or
■In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
The steps in connection with commissioning, inspec-
tion and maintenance are found in the "Commission-
ing, inspection and maintenance" section and identified
as follows:
Symbol Meaning
Steps required during commissioning
Not required during commissioning
Steps required during inspection
Not required during inspection
Steps required during maintenance
Not required during maintenance
Intended use
The appliance is intended solely for installation and
operation in sealed unvented heating systems that
comply with EN 12828, with due attention paid to the
associated installation, service and operating instruc-
tions. It is only designed for heating up heating water
that is of potable water quality.
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents 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 man-
ufacturer in each individual case.
Information
Disposal of packaging
5817493
Information

9
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 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 200-W, type B2HA
The selected gas category in the delivered condition
and the associated nominal gas pressure are given on
the boiler type plate. The type plate also shows the
other gas types and pressures with which the boiler
can be operated. A conversion within the stated natu-
ral gas groups is not required. For switching to LPG or
natural gas M (without conversion kit), see "Commis-
sioning, inspection and maintenance".
The Vitodens 200-W may only be delivered to coun-
tries listed on the type plate. For deliveries to other
countries, approved contractors must arrange individ-
ual approval on their own initiative and in accordance
with the law of the country in question.
Multi boiler system
For the installation of a multi boiler system, observe
the installation instructions for the multi boiler system
accessories.
System examples
System examples with hydraulic and electrical connec-
tion diagrams and function descriptions are available
to help setting up the heating system.
Detailed information on system examples can be found
at: www.viessmann-schemes.com
Spare parts lists
Information about spare parts can be found on the
Viessmann spare parts app.
Information
Intended use (cont.)
5817493
Information

10
Dimensions and connections
!Please note
To prevent appliance damage,
connect all pipework free of load and torque
stress.
Vitodens 200-W with connection set with integral low loss header
480 236
530
40 752
875 L
K
G
200
114
D
E
F
C
A
B
H
922
1136
1276
133
850
1975 1690 N
M
H
O
Fig. 1
AHeating flow G 1½
BHeating return G 1½
CExpansion vessel G 1
DGas connection R 1
ECylinder flow G 1½
FCylinder return G 1½
GCable entry area at the back
HCondensate drain
KIf DHW cylinder connection set (accessories) is
being used
LWithout connection sets (accessories)
MRecommended dimension (single boiler system)
NRecommended dimension (multi-boiler system)
OSafety valve
Preparing for installation
Preparing for installation
5817493
Installation

11
Vitodens 200-W with connection set without low loss header
100
850
530
P
40
160 160
200
752
1975 1690
480
875
1300
E
L
M
O
K
G
N
236
B
C
DF
AH
Fig. 2
ACylinder flow G 1½
BSafety valve
CExpansion vessel connection G 1
DHeating flow 7 42 mm
EGas connection R 1
FHeating return 7 42 mm
GConnection set (accessories, shown without the
thermal insulation supplied)
HCylinder return G 1½
KCable entry area at the back
LWithout connection set (accessories)
MWith connection set (accessories)
NRecommended dimension (single boiler system)
ORecommended dimension (multi-boiler system)
PCondensate drain
Note
This boiler (IP rating: IP X4) is approved for installation
in wet rooms inside safety zone 1 in accordance with
DIN VDE 0100, providing the occurrence of water jets
can be ruled out.
Observe DIN VDE 0100.
1. Prepare the water connections. Thoroughly flush
the heating system.
2. Prepare gas connection to TRGI [or local regula-
tions].
3. Prepare the electrical connections.
■Power cable: Flexible cable 3 x 1.5 mm2. Leave
the earth conductor (PE) longer than the live con-
ductors L1 and N.
Max. fuse rating 16 A, 230 V~.
■Accessory cables: Min 0.75 mm2 flexible PVC
cable with required number of cores for external
connections.
■Allow all cables in the marked area to protrude
1200 mm from the wall. See previous diagram.
Preparing for installation
Preparing for installation (cont.)
5817493
Installation

12
Fitting the wall mounting bracket
Note
The enclosed screws and rawl plugs are only suitable
for concrete. For other construction materials, use fix-
ing materials that are suitable for 100 kg loads.
480
1975
Ø 10
BC
D
A
2.
1.
Fig. 3
AReference point, boiler top edge
BInstallation template (included with the boiler)
CTop edge, finished floor
DRecommendation
Installation sequence
Mounting the boiler and making connections
5817493
Installation

13
Hooking the boiler onto the wall mounting bracket and levelling it
2x
3.
1.
2.
4.
2x
4.
Fig. 4
Note on step 4
Align the boiler vertically with a spirit level using the
adjusting screws.
Connection on the heating water side
Note
Connection situation shown with the connection sets
that are available as accessories.
Provide the required connections when using on-site
fittings.
Installation sequence
Mounting the boiler and making connections (cont.)
5817493
Installation

14
Connection set with integral low loss header
A
B
C
E
D
Fig. 5
ACylinder flow
BHeating flow
CHeating return
DExpansion vessel
ECylinder return
Connect the boiler to the on-site pipework.
Installation sequence
Connection on the heating water side (cont.)
5817493
Installation

15
Connection set without low loss header
A
B
C
D
E
Fig. 6
ACylinder flow
BExpansion vessel connection
CHeating flow
DCylinder return
EHeating return
Connect the boiler to the on-site pipework.
Flue gas connection
Note
Only use the "System certificate" and "Skoberne
GmbH flue system" labels in conjunction with the
Viessmann flue system made by Skoberne.
Connect the balanced flue pipe.
Flue system installation instructions
Do not carry out commissioning until the following
conditions are met:
■Free passage through the flue gas pipes.
■Flue system with positive pressure is gas-tight.
■Inspection port covers checked for secure and tight
seating.
■Apertures for ensuring sufficient combustion air sup-
ply are open and cannot be closed off.
■Applicable regulations on installing and commission-
ing flue systems have been followed.
Danger
Leaking or blocked flue systems or an insuffi-
cient supply of combustion air cause life threat-
ening poisoning due to carbon monoxide in the
flue gas.
Ensure the flue system functions correctly. Aper-
tures for combustion air supply must not be able
to be closed off.
Prevent condensate drainage via a wind protec-
tor.
Installation sequence
Connection on the heating water side (cont.)
5817493
Installation

16
A
Fig. 7
1. Push condensate hose onto hose adaptor A.
Ensure the tight connection on the hose adaptor.
2. Connect the condensate hose with a constant fall
and a pipe vent to the public sewage system or to
a neutralising system.
Note
Observe local waste water regulations.
Gas connection
A
Fig. 8
Information on operation with LPG
When installing the boiler in rooms below ground level
we recommend fitting an external safety solenoid
valve.
1. Seal gas shut-off valve A into the gas connection.
2. Check the gas connection for leaks.
Note
Only use suitable and approved leak detection
agents (EN 14291) and devices for the leak test.
Leak detection agents with unsuitable constituents
(e.g. nitrides, sulphides) can cause material dam-
age.
Remove residues of the leak detection agent after
testing.
!Please note
Excessive test pressure will damage the
boiler and the gas train.
Max. test pressure 150 mbar (15 kPa).
Where higher pressure is required for leak
tests, disconnect the boiler and the gas train
from the main supply pipe (undo the fitting).
3. Purge the gas line.
Conversion to alternative gas types:
See "Commissioning, inspection and mainte-
nance".
Opening the control unit enclosure
!Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing any work, touch earthed
objects such as heating or water pipes to dis-
charge static loads.
Installation sequence
Condensate connection
5817493
Installation

17
2x
4x
4.
3.
5.
2.
1.
Fig. 9
Installation sequence
Opening the control unit enclosure (cont.)
5817493
Installation

18
L N
230 V~ 230 V~
5
96 40
40962035100
1
LN
X4 2 1
2
1
32 15 4
X3
LN
21
M
1~
X19
X14
A
B
21
20
L1
C
D
145
145
LN
Fig. 10
ARadio clock receiver
BHeating circuit pump or boiler circuit pump
CVitotrol 100 UTDB (only for constant temperature
control units)
When making this connection, remove jumper
between "1" and "L".
DVitotrol 100 UTA (only for constant temperature
control units)
or
Vitotrol 100 wireless receiver, type UTDB-RF
When making this connection, remove jumper
between "1" and "L".
Connections to 230 V~ plugs
sÖ Boiler circuit pump or heating circuit pump
■Variable speed with 0 - 10 V connection
sA Circulation pump, connection options:
■DHW circulation pump
■External heating circuit pump
■Circulation pump for cylinder heating
fÖ Power supply
lH ■Power supply for accessories
■External demand/blocking
■Vitotrol 100 UTA
■Vitotrol 100 UTDB
■Vitotrol 100 UTDB-RF
Connections to LV plugs
!Outside temperature sensor
?Flow temperature sensor for low loss header
(accessories)
Installation sequence
Electrical connections
5817493
Installation

19
%Cylinder temperature sensor (supplied with DHW
cylinder connection set)
aVG KM-BUS subscriber (accessories)
■Vitotrol 200-A or 300-A remote control
■Vitocom 100 GSM
■Mixer extension kit
■Solar control module, type SM1
■Vitosolic
■AM1 extension
■EA1 extension
■Wireless base station
Information on connecting accessories
When connecting accessories observe the sep-
arate installation instructions provided with
them.
Circulation pump at plug sÖ
A1~
M
sÖ
LN
?
aVF
Fig. 11
AHigh-efficiency circulation pump, speed-controlled
via 0 - 10 V control voltage
Insert plug aVF (0 - 10 V connection) at X4.
Rated current 2(1) A~
Rated voltage 230 V ~
Adjust function of circulation pump
Hydraulic connection/connection require-
ments
Control unit setting
Coding address/group
Circulation pump setting
Single boiler system with:
■Heating circuit without mixer
■Connection without low loss header and with-
out heating water buffer cylinder
■Circulation pump VI PARA 25/1-12
■Max. pump speed:
E6: ... /heating circuit
■Min. pump speed:
E7: ... /heating circuit
For further details, see the fol-
lowing diagram and chapter
"Heating circuit ..." under code
2.
Ext. In
Ext. In
2
6
1212
2
6
Single boiler system
Connection of the heating circuits to the heating
water buffer cylinder
Circulation pump VI PARA 25/1-12
30:0/Boiler/2
Ext. In
2
6
1212
2
6
Recommended for Δt = 15 K
■69 kW: = 4 ≙ 3.95 m3/h
■80 kW: = 6 ≙ 4.59 m3/h
■99 kW: = 10 ≙ 5.70 m3/h
Installation sequence
Electrical connections (cont.)
5817493
Installation

20
Hydraulic connection/connection require-
ments
Control unit setting
Coding address/group
Circulation pump setting
Single boiler system
Connection of heating circuits with connection
set with integral low loss header
Circulation pump VI PARA 25/1-11
30:0/boiler/2
Ext. In
2
6
1212
2
6
Recommendation
■80 kW (Δt = 15 K): = 6
≙ 4.03 m3/h
■99 kW (Δt = 20 K): = 6
≙ 4.02 m3/h
Multi boiler system
Circulation pump VI PARA 25/1-11
30:0/Boiler/2
Ext. In
2
6
1212
2
6
Recommended for Δt = 20 K
■69 kW: = 3 ≙ 2.96 m3/h
■80 kW: = 4 ≙ 3.43 m3/h
■99 kW: = 6 ≙ 4.25 m3/h
Multi-stage circulation pump (on site) 30:0/Boiler/2
Circulation pump VI PARA 25/1-12
Rated voltage V~ 230
Power consumption
■Max. W 310
■Min. W 16
Residual head of circulation pump (coding address E6 and E7)
When connecting a heating circuit without mixer and
without low loss header or heating water buffer cylin-
der, the circulation pump is controlled subject to the
outside temperature. The min. and max. speeds of the
circulation pump are limited by the settings for coding
addresses E6 and E7. The delivered condition is
specified by boiler-specific parameters.
Installation sequence
Electrical connections (cont.)
5817493
Installation