Viessmann Vitodens 200-W WB2B Series User manual

Start-up/Service Instructions
for use by heating contractor
Vitodens 200-W, WB2B Series
Models WB2B 80, 105
Wall-mounted, natural gas-fired condensing boiler
or operation with natural gas
Heating input 104 to 370 MBH
30 to 108 kW
VITODENS 200-W 

Read and save these instructions
for future reference.
IMPORTA T
This trademark is registered with the U.S. Patent and Trademark Office.
5418 913 v1.0 b2 08/2009
Please file in Service Binder

Safety, Installation and Warranty Requirements
2
Safety, Installation and Warranty Requirements
Please ensure that these instructions are read and understood before commencing installation. Failure to comply with the
instructions listed below and details printed in this manual can cause product/property damage,severe personal injury, and/or loss
of life. Ensure all requirements below are understood and fulfilled (including detailed information found in manual subsections).
HLicensed professional heating
contractor
The installation, service, and
maintenance of this equipment must
be performed by a licensed
professional heating contractor.
"
Please see section
entitled “Important
Regulatory and
Installation
Requirements” in the
Installation Instructions.
HProduct documentation
Read all applicable documentation
before commencing installation. Store
documentation near boiler in a readily
accessible location for reference in
the future by service personnel.
"
For a listing of
applicable literature,
please see section
entitled “Important
Regulatory and
Installation Requirements”
in the Installation Instructions.
HCarbon monoxide
Improper installation, service and/or
maintenance can cause flue products
to flow into living space. lue
products contain poisonous carbon
monoxide gas.
"
For information
pertaining to the proper
installation, service and
maintenance of this
equipment to avoid
formation of carbon monoxide, please
see the Installation Instructions of the
Vitodens 00 Direct Vent System.
HEquipment venting
Never operate boiler without an
installed venting system. An improper
venting system can cause carbon
monoxide poisoning.
HWarranty
Information contained in
this and related product
documentation must be
read and followed. Failure
to do so renders warranty
null and void.
HAdvice to owner
Once the installation work is
complete, the heating contractor
must familiarize the system
operator/ultimate owner with all
equipment, as well as safety
precautions/requirements, shut-down
procedure, and the need for
professional service annually before
the heating season begins.
Warning
This boiler requires fresh air for safe operation and must be installed with provisions for adequate combustion and
ventilation air (in accordance with local codes and regulations of authorities having jurisdiction).
Do not operate this boiler in areas with contaminated combustion air. High levels of contaminants such as dust, lint or
chemicals can be found at construction sites, home renovations, in garages, workshops, in dry cleaning/laundry facilities,
near swimming pools and in manufacturing facilities.
Contaminated combustion air will damage the boiler and may lead to substantial property damage, severe personal injury
and/or loss of life. Ensure boiler/burner is inspected and serviced by a qualified heating contractor at least once a year in
accordance with the Start-up/Service Instructions of the boiler.
Operating and Service Documentation
It is recommended that all product documentation such as parts lists, operating and service instructions be handed over to
the system user for storage. Documentation is to be stored near boiler in a readily accessible location for reference by
service personnel.
5418 913 b2
Installers must follow local
regulations with respect to
installation of carbon monoxide
detectors. Follow manufacturer’s
maintenance schedule of boiler.
WAR I G

Index
3
Page
General Information
Safety, Installation and Warranty Requirements 2 ...................................
Operating and Service Documentation 2 ......................................................
Important Regulatory and Installation Requirements 5 ...........................
About these Start-up/Service Instructions 8 ................................................
ecessary Tools 8 ...................................................................................................
Applicability 9 ............................................................................................................
Product Information 9 ............................................................................................
Mechanical Room 10 .................................................................................................
Removing Front Enclosure Panel 11 ...................................................................
Initial Start-up
and Service
Procedure (Overview) 12 ........................................................................................
Steps 14 ........................................................................................................................
Control Technology
Outdoor Reset Programming Unit (Vitotronic 200, HO1) 28 ..................
Coding
Coding Level 1 39 .....................................................................................................
Coding Level 2 42 .....................................................................................................
Service Scans
Service Level Overview 52 .....................................................................................
Temperatures, Boiler Coding Card and Brief Scans 53 .............................
Checking Outputs (Relay Test) 54 ......................................................................
Scanning Operating Conditions and Sensors 55 ...........................................
5418 913 b2

4
Troubleshooting
Diagnostics 56 .............................................................................................................
Corrective Action 62 ................................................................................................
Additional Information
Control Functions 66 .................................................................................................
Wiring Diagrams 69 ..................................................................................................
Parts Lists 71 ...............................................................................................................
Maintenance Record 74 ..........................................................................................
Technical Data 75 ......................................................................................................
Lighting and Operating Instructions 77 .............................................................

General Information
5
Important Regulatory and Installation Requirements
Codes
The installation of this unit shall be in
accordance with local codes or, in the
absence of local codes, use
CAN/CSA-B149.1 or .2 Installation
Codes for Gas Burning Appliances for
Canada. or U.S. installations use the
National uel Gas Code ANSI Z223.1.
Always use latest editions of codes.
In Canada all electrical wiring is to be
done in accordance with the latest
edition of CSA C22.1 Part 1 and/or
local codes. In the U.S. use the
National Electrical Code ANSI/N PA
70. The heating contractor must also
comply with both the Standard for
Controls and Safety Devices for
Automatically ired Boilers,
ANSI/ASME CSD-1, and the Installation
Code for Hydronic Heating Systems,
CSA B214-01, where required by the
authority having jurisdiction.
Instructing the system user
The installer of the system is
responsible to ensure the system
operator/ultimate owner is made
familiar with the system functioning,
its activation, and its shut-down.
Initial start-up
Initial start-up must be performed by a
qualified heating contractor. Proper
completion of the Maintenance Record
by the heating contractor is also
required.
Working on the equipment
The installation, adjustment, service,
and maintenance of this boiler must be
done by a licensed professional heating
contractor who is qualified and
experienced in the installation, service,
and maintenance of hot water boilers.
There are no user serviceable parts on
the boiler, burners, or control.
The following topics must be
covered:
Proper system operation sequence.
Explain the equipment.
Demonstrate an emergency
shut-down, what to do and what not.
Explain that there is no substitute for
proper maintenance to help ensure
safe operation.
The Maintenance Record is located
on page 74 of this manual.
Please carefully read this manual prior
to attempting start-up, maintenance
or service. Any warranty is null and
void if these instructions are not
followed.
For information regarding other
Viessmann System Technology
componentry, please reference
documentation of the respective
product.
We offer frequent installation and
service seminars to familiarize our
partners with our products. Please
inquire.
Ensure main power supply to
equipment, the heating system, and all
external controls has been deactivated.
Close main gas supply valve. Take
precautions in all instances to avoid
accidental activation of power during
service work.
The completeness and functionality of
field supplied electrical controls and
components must be verified by the
heating contractor. These include low
water cut-offs, flow switches (if used),
staging controls, pumps, motorized
valves, air vents, thermostats, etc.
Technical literature
Literature for the Vitodens boiler:
- Technical Data Manual
- Installation Instructions
- Start-up/Service Instructions
- Operating Instructions
and User’s Information Manual
- Instructions of other Viessmann
products utilized and installed
- Installation codes mentioned
in this manual
Leave all literature at the installation
site and advise the system
operator/ultimate owner where the
literature can be found. Contact
Viessmann for additional copies.
This product comes with several
safety instruction labels attached.
Do not remove!
Contact Viessmann immediately if
replacement labels are required.
5418 913 b2

General Information
6
Important Regulatory and Installation Requirements (continued)
Special Requirements for Side-Wall Vented Appliances
In the Commonwealth of Massachusetts
The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for installation of
side-wall vented gas appliances as follows:
(a) or all side-wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole
or in part for residential purposes, including those owned or operated by the Commonwealth and where the side-wall
exhaust vent termination is less than (7) feet above finished grade in the area of the venting, including but not limited to
decks and porches, the following requirements shall be satisfied:
1. INSTALLATION O CARBON MONOXIDE DETECTORS. At the time of installation of the side-wall horizontal vented
gas fueled equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector
with an alarm and battery back-up is installed on the floor level where the gas equipment is to be installed. In
addition, the installing plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide
detector with an alarm is installed on each additional level of the dwelling, building or structure served by the
side-wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the
services of qualified licensed professional for the installation of hard-wired carbon monoxide detectors.
a. In the event that the side-wall horizontally vented gas fueled equipment is installed in a crawl space or an attic,
the hard-wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent
floor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply with the above requirements; provided, however, that
during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the
above provisions shall comply with N PA 720 and be ANSI/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a
minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented
gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size,
”GAS VENT DIRECTLY BELOW. KEEP CLEAR O ALL OBSTRUCTIONS”.
4. INSPECTION. The state or local gas inspector of the side-wall horizontally vented gas fueled equipment shall not
approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage
installed in accordance with the provisions of 248 CMR 5.08(2)(a) 1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a) 1 through 4:
1. The equipment listed in Chapter 10 entitled ”Equipment Not Required To Be Vented” in the most current edition of
N PA 54 as adopted by the Board; and
2. Product Approved side-wall horizontally vented gas fueled equipment installed in a room or structure separate from
the dwelling, building or structure used in whole or in part for residential purposes.
(c) MANU ACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of
Product Approved side-wall horizontally vented gas equipment provides a venting system design or venting system
components with the equipment, the instructions provided by the manufacturer for installation of the equipment and the
venting system shall include:
1. Detailed instructions for the installation of venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
5418 913 b2

General Information
7
Important Regulatory and Installation Requirements (continued)
Special Requirements for Side-Wall Vented Appliances
In the Commonwealth of Massachusetts (continued)
(d) MANU ACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a
Product Approved side-wall horizontally vented gas fueled equipment does not provide the parts for venting the flue
gases, but identifies ”special venting systems”, the following requirements shall be satisfied by the manufacturer:
1. The referenced ”special venting system” instructions shall be included with the appliance or equipment installation
instructions; and
2. The ”special venting systems” shall be Product Approved by the Board, and the instructions for that system shall
include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side-wall horizontally vented gas fueled equipment, all
venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the
appliance or equipment at the completion of the installation.
5418 913 b2

General Information
8
About these Start-up/Service Instructions
Take note of all symbols and notations intended to draw attention to potential hazards or important product information.
These include ”WAR I G”, ”CAUTIO ”, and ”IMPORTA T”. See below.
Warnings draw your attention to the
presence of potential hazards or
important product information.
Cautions draw your attention to the
presence of potential hazards or
important product information.
Helpful hints for installation,
operation or maintenance which
pertain to the product.
This symbol indicates that additional,
pertinent information is to be found in
column three.
This symbol indicates that other
instructions must be referenced.
ecessary Tools
Special items
HApproved leak detection fluid for
natural gas and propane gas
HPipe joint sealant
Testing/analysis equipment
HMultimeter to measure 0 - 230 V,
0 - 12 A AC and 0 - 100 A DC
Hlue gas analyzer to measure % CO
2
or O
2
(i.e. Bacharach fluid samplers
or suitable electronic analyzer)
HManometer to measure gas pressure
0 to 11 ”w.c. (accurately) and up to
28 ”w.c. gas pressure (or a
non-electric Magnehelic® manometer
may also be utilized)
HStack thermometer 0 to 500 ° /
0 to 260 °C
HBacharach calculator or suitable
tables to calculate efficiency
HCarbon monoxide measuring
equipment 0 to 400 ppm
Use only calibrated equipment.
Cleaning supplies
HPlastic hand brush
HRags
5418 913 b25418 913 b2
Indicates an imminently hazardous
situation which, if not avoided, could
result in death, serious injury or
substantial product/property damage.
WAR I G
Indicates an imminently hazardous
situation which, if not avoided, may
result in minor injury or
product/property damage.
CAUTIO
IMPORTA T
5418 913 b2

General InformationGeneral Information
9
Applicability
When ordering replacement parts,
provide either the 16-digit serial
number (on the bar code label) or the
12-digit ASME/ B serial number,
located as shown underneath boiler
front enclosure panel. Refer to page 11
for instructions on how to remove front
enclosure panel.
Model o. WB2B 30-80
Serial No. 7374868 jjjjjjjjj
Model o. WB2B 30-105
Serial No. 7374869 jjjjjjjjj
Product Information
Natural gas-fired wall-mounted condensing heating boiler for weather-responsive
operation in closed loop, forced circulation hot water heating systems for space
heating and domestic hot water (DHW) production. Models WB2B 80 and 105
are for operation with natural gas only.
Boiler model must be selected based on an accurate heat loss calculation of the
building. Ensure boiler model is compatible with connected radiation.
Vitodens 200, WB2B series boilers are factory-tested and calibrated. urther gas
valve adjustments are not typically required during field start-up.
Follow the Vitodens Venting System Installation Instructions to vent
this boiler.
5418 913 b2
IMPORTA T
Fig. 1
Locating boiler serial numbers for ordering
replacement parts
1 -digit ASME/NB serial number
(located on metallic plate riveted
to the heat exchanger)
16-digit serial number on white
bar code label
5418 913 b2

General Information
10
Mechanical Room
During the early stages of designing a new home, we recommend that proper consideration be given to constructing a
separate mechanical room dedicated to the gas- or oil-fired heating equipment and domestic hot water storage tank(s).
The boiler must be located in a heated indoor area, near a floor drain, and as close as possible to a wall. Whenever possible,
install the boiler near an outside wall so that it is easy to duct the venting system to the boiler.
Locate the boiler on a wall capable of supporting the weight of the boiler filled with water (see section entitled “Technical
Data” on page 75 for information required for total boiler weight calculation). Ensure that the boiler location does not
interfere with the proper circulation of combustion and ventilation air of other fuel burning equipment within the mechanical
room (if applicable).
The maximum room temperature of the mechanical room where the boiler is located must not exceed 104 º /40 ºC.
Installation area conditions
HEnsure ambient temperatures are
higher than 32° / 0°C and lower
than 104° / 40°C.
HPrevent the air from becoming
contaminated by halogenated
hydrocarbons (e.g. as contained in
paint solvents or cleaning fluids) and
excessive dust (e.g. through grinding
or polishing work). Combustion air for
the heating process, and ventilation
of the boiler room must be free of
corrosive contaminants. To that end,
any boiler must be installed in an area
that has no chemical exposure. The
list to the right indicates the main,
currently known sources.
HAvoid continuously high levels of
humidity (e.g. through frequent
drying of laundry).
HNever close existing ventilation
openings.
Sources of combustion and ventilation
air contaminants
Areas likely to contain contaminants:
HNew building construction
HSwimming pools
HRemodelling areas, hobby rooms
HGarages with workshops
Hurniture refinishing areas
HDry cleaning/laundry areas and
establishments
HAuto body shops
HRefrigeration repair shops
HMetal fabrication plants
HPlastic manufacturing plants
HPhoto processing plants
HBeauty salons
Products containing contaminants:
HChlorine-type bleaches, detergents
and cleaning solvents found in
household laundry rooms
HPaint and varnish removers
HHydrochloric acid, muriatic acid
HChlorine-based swimming pool
chemicals
HSpray cans containing
chlorofluorocarbons
HChlorinated waxes and cleaners
HCements and glues
HRefrigerant leaks
HCalcium chloride used for thawing
HSodium chloride used for water
softening salt
HPermanent wave solutions
HAdhesives used to fasten building
products and other similar items
HAntistatic fabric softeners used in
clothes dryers
Boiler operation in marine environments
(damp, salty coastal areas)
The service life of the boiler’s exposed
metallic surfaces, such as the casing
and fan housing, is directly influenced
by proximity to damp and salty marine
environments. In such areas, higher
concentration levels of chlorides from
sea spray, coupled with relative
humidity, can lead to degradation of
the exposed metallic surfaces
mentioned above. Therefore, it is
imperative that boilers installed in such
environments not be installed using
direct vent systems which draw
outdoor air for combustion. Such
boilers must be installed using room air
dependent vent systems; i.e. using
room air for combustion. The indoor air
will have a much lower relative
humidity and, hence, potential
corrosion will be minimized.
5418 913 b2
Incorrect ambient conditions can lead
to damage to the heating system and
put safe operation at risk.
WARNING
If you notice fire coming from the
appliance, call the fire department
immediately! Do not attempt to
extinguish the fire unless qualified to
do so.
WARNING
Fire causes a risk of burns and
explosion!
H
HH
HShut down the boiler
H
HH
HClose fuel shut-off valves
H
HH
HUse a tested fire extinguisher,
class ABC.
WARNING
IMPORTA T

General Information
11
Removing Front Enclosure Panel
Some of the following start-up/service
steps require the removal of the front
enclosure panel. To avoid personal
injury and/or product damage of any
kind please follow the instructions
below carefully when removing the
front enclosure panel.
1. Close main gas supply valve.
2. Access the control unit by lifting and
pivoting the control cover and
switch off system on/off switch.
3. Turn off power supply to boiler and
ensure that power supply cannot be
activated during the duration of the
start-up/service work.
4. Loosen the screws Aat the bottom
of the boiler as shown (do not
remove completely).
5. Slide out and remove front enclosure
panel B.
6. Release locking tabs located on both
sides of the control unit C, and fold
control down.
7. Undo screws and remove cover D.
5418 913 b2
Fig.
Accessing the control to switch off the boiler
2.
2x
B D
A
C
4.
5.
Fig. 3
Removing front enclosure panel
6.
7.

Initial Start-up and Service
12
Procedure (Overview)
Initial start-up steps
Service steps
I
1. Bleed air from boiler heat exchanger Page 13 ....................................................................................................
I
2. Fill siphon with water Page 13 ...................................................................................................................................
I
3. Fill heating system with water Page 14 ................................................................................................................
I
4. Check power supply connection Page 15 ..............................................................................................................
I
5. Set time and date Page 15 ...........................................................................................................................................
I
6. Select language (if required) Page 16 .....................................................................................................................
I
7. Check gas type Page 16 ................................................................................................................................................
I
8. Convert to high altitude Page 17 ...............................................................................................................................
I S
9. Measure static and running pressure Page 18 .....................................................................................................
I
10. Set maximum input Page 19 ......................................................................................................................................
I S
11. Check all primary and secondary circuit connections for leaks Page 19 .................................................
I S
12. Perform combustion analysis Page 19 ...................................................................................................................
I
13. Check coaxial vent system for leaks Page 20 ....................................................................................................
S
14. Remove burner assembly Page 20 ...........................................................................................................................
S
15. Check burner refractory and cylinder assembly Page 21 ...............................................................................
S
16. Check and adjust ignition and ionization electrodes Page 21 .......................................................................
S
17. Clean combustion chamber/heat exchanger surface Page 22 .......................................................................
S
18. Check condensate drain Page 23 .............................................................................................................................
S
19. Check neutralization unit (if applicable) Page 23 ...............................................................................................
I S
20. Check diaphragm expansion tank and system pressure Page 24 ................................................................
I S
21. Check functioning of safety valves Page 24 ........................................................................................................
I S
22. Check electrical connections Page 25 .....................................................................................................................
I S
23. Check gas pipes and fittings for leaks Page 25 ..................................................................................................
I S
24. Check CO
2
setting Page 26 .........................................................................................................................................
I S
25. Clock natural gas meter Page 27 ..............................................................................................................................
5418 913 b2

Initial Start-up and Service
13
Steps
1. Bleed air from boiler heat exchanger
I nitial start-up
1. Close isolation valves (not shown)
connected to Aand B.
2. Connect drain hose to drain valve
C, and connect fill hose to boiler
fill valve F.
3. Close isolation valve D(located
inside the boiler).
4. Open fill valve F.
5. Bleed air from boiler heat exchanger
via isolation valve Eand out
through drain valve Cuntil no
more air noise is audible.
6. Close isolation valve Eand open
isolation valve D.
7. Bleed air from boiler heat exchanger
via isolation valve Dand out
through drain valve Cuntil no
more air noise is audible.
8. Close fill and drain valves Cand
F. Open isolation valve E.
9. If the control unit has not been
switched ON prior to filling the
system, switch the control to ON,
and activate the air bleed program
by setting coding address “2 ” to
“1” (boiler pump sÖ will be switch
ON and O for 30 sec. at a time
over a period of 20 minutes. The
program is automatically disabled
after 20 minutes, and coding
address “2 ” is set back to “0”).
10.Check system pressure.
11.Ensure adequate fuel supply exists
and open gas shutoff valve.
Isolation valves Dand Emust be
open for the boiler to operate
properly (each flow pipe through
valves Dand Eis equipped with a
flow switch).
To access coding level 1 and setting
the coding address see page 39. For
function and sequence of the air
bleed program, see page 67. While
the air bleed program is running, the
display will show ”Entlüftung”
(bleeding air).
Max. operating pressure...60 psig
Min. operating pressure...14 to 3 psig
Pressure relief valve.......30 psig
2. Fill siphon with water
I nitial start-up
1. Pull off cap Adownwards.
2. Undo union nut Band pull off
siphon Cdownwards.
3. ill siphon Cwith water, and
reassemble.
4. Push on cap Afrom below.
5418 913 b2
Fig. 4
E D
C FA B
B
C
A

Initial Start-up and Service
14
Steps
3. Fill heating system with water
I nitial start-up
1. Open system isolation valves at C
and D(if installed).
Please note:
Before filling the heating system with
water, check that all necessary flow
check valves are installed.
2. Check inlet pressure of the
diaphragm expansion tank.
If the nitrogen pressure of the
precharged expansion tank is less
than the static pressure of the
system, inflate membrane pressure to
slightly exceed pressure of system.
The static pressure required at the
tank is based upon the static height
of the system. The system fill
pressure value must be equal to the
expansion tank pressure value at
approx. 60 ºF/15.6 ºC.
3. To remove debris and/or sludge
ensure that the system piping is
flushed out. ailure to do so could
cause settlement in the boiler
causing overheating and damage
not covered by warranty.
4. ill the heating system with water
at the boiler filling tap Eand drain
air completely from the drain tap
A.
5. If the control unit has not been
switched ON prior to filling the
system, switch the control to ON,
and activate the filling program by
setting coding address “2 ” to “2”
(boiler pump sÖ starts and the
burner shuts down if this function
is enabled. The program is
automatically disabled after 20
minutes, and coding address “2 ”
is set back to “0”).
System fill pressure must be
approximately 3 psig higher than the
static head when the system is cold.
Water treatment should be
considered in areas where it is known
that boiler feed water contains a high
mineral content and hardness.
In areas where freezing might occur,
an antifreeze may be added to the
system water to protect the system.
Please adhere to the specifications
given by the antifreeze manufacturer.
Do not use automotive silicate-based
antifreeze. Please observe that an
antifreeze/water mixture may require
a backflow preventer within the
automatic water feed and influence
components such as diaphragm
expansion tanks, radiation, etc. A
40% antifreeze content will provide
freeze-up protection to -10°F/- 3°C.
Do not use antifreeze other than
specifically made for hot water
heating systems. System also may
contain components which might be
negatively affected by antifreeze.
Check total system frequently when
filled with antifreeze.
Max. operating pressure...60 psig
Min. operating pressure...14 to 3 psig
Pressure relief valve.......30 psig
5418 913 b2
C D
AE
Fig. 5
cSystem supply
DSystem return
Unsuitable fill water increases the
level of deposits and corrosion, and
may lead to damage to the
equipment.
HThoroughly flush the entire heating
system prior to filling with water.
HOnly use water of potable quality.
HThe water will have have to be
softened if it is harder than 8.77
grains / 150 ppm total dissolved
solids.
HInhibitors or antifreeze additives
suitable for heating systems may
be added manually.
CAUTIO

Initial Start-up and Service
15
Steps (continued)
4. Check power supply connection
I nitial start-up
A power/pump module is supplied with
the Vitodens 200, WB2B boiler, which
requires a 120 VAC power supply from
a wall receptacle.
The module contains a 120/230 VAC
step-up transformer to power the boiler
with 230 VAC. Refer to the Installation
Instructions shipped with the module
for wiring details and/or the Installation
Instructions of the boiler.
Voltage range
The voltage at connector fÖ of the
boiler control must be 230 V (see
wiring diagram).
eutral conductor
The electrical power supply must have
a neutral conductor.
In Canada all electrical wiring is to be
done in accordance with the latest
edition of CSA C22.1 Part 1 and/or
local codes. In the U.S. use the
ational Electrical Code A SI/ FPA
70. The heating contractor must also
comply with both the Standard for
Controls and Safety Devices for
Automatically Fired Boilers, A SI,
ASME CSD-1.
Please note:
The outer conductor ”L” and the
neutral conductor ”N” must not be
interchanged.
See wiring diagram on page 69 in
section entitled ”Additional
Information”.
5. Set time and date
I nitial start-up
See page 8 in these instructions for an overview of controls and indicators of
the boiler control.
HDuring commissioning or after a
prolonged time not in use, it may be
necessary to reset the time and date
if the time flashes in the display.
HWhen the boiler is started up for the
first time the display appears in
German (factory default setting).
Refer to following subsection on how
to select the correct language.
1. Press “⊕/“ to adjust to the
current time.
2. Press “ ” to confirm. The word
“Datum” is displayed.
3. Press “⊕/“ to set the current
date.
4. Press “ ” to confirm.
5418 913 b2
IMPORTA T
Uhrzeit
Datum
Sa 0
00
04
44
4.
..
.0
00
08
88
8.
..
.0
00
07
77
7

Initial Start-up and Service
16
Steps (continued)
6. Select language (if required)
I nitial start-up
HWhen the boiler is started up for the
first time the display appears in
German (factory default setting).
1. Press “i”. “Heizkreis wählen”
appears on display.
2. Press “ ” to confirm and wait for
approx. 4 sec.
3. Press “i” again and
“Außentemperatur” (outdoor
temperature) is displayed.
4. Press ““ to select required
language.
5. Press “ ” to confirm your
selection.
7. Check gas type
I nitial start-up
HPlease note that models WB2B 80
and 105 of the Vitodens 200-W
boiler are for operation with natural
gas only.
1. Ensure that the fuel type listed on
the boiler rating plate is the correct
type for the installation being
attempted.
2. Record fuel type in Maintenance
Record on page 74.
The Vitodens 00-W boiler is for use with natural gases whose characteristics fall within the following ranges.
Do not use any other types of gas.
Natural gas
Heating value (gross) Btu/ft
3
970 to 1100
Specific gravity 0.57 to 0.70
Ultimate carbon dioxide (CO
2
) % 11.7 to 12.2
5418 913 b2
Außentemperatur
i
5
55
50
00
0
º

Initial Start-up and Service
17
Steps (continued)
8. Convert to high altitude
I nitial start-up
In the factory default setting, the boiler is equipped to operate in altitudes of up
to 5,000 ft. / 1,500 m. For operation in higher altitudes, the existing coding card
must be replaced with a high altitude coding card. See table below or the
Viessmann Price List for order information.
1. Pull out the existing coding card,
cut and remove it from the cable
tie. Insert the high altitude coding
card into the boiler control board.
2. Install cover.
Boiler Model 0-5,000 ft. /
0-1,500 m
5,000-10,000 ft. /
1,500 - 3,000 m
WB2B 80 7832 269
*1
7425 958
WB2B 105 7832 270
*1
7425 959
*1
Factory installed.
5418 913 b2
Coding
card
number
2.
Fig. 6
1.

Initial Start-up and Service
18
Steps (continued)
9. Measure static pressure and running pressure
I nitial start-up S ervice
1. To measure static and/or running
pressure remove boiler enclosure
panel as indicated page 11 in these
instructions.
2. Close gas shutoff valve (field
supplied).
3. Loosen screw Aat inlet gas
pressure port on one of the two gas
combination valves, do not remove
completely. Connect manometer.
4. Open the gas shutoff valve.
5. Measure static pressure. Value must
be 14 “w.c. max.
6. Enter measured value into
Maintenance Record on page 74 in
these instructions.
7. Start up boiler, using the ON/O
switch “8” on the boiler control.
A CO measurement (see page 26) must
be taken before and after working on
gas appliances to eliminate risks to
health and to guarantee the
satisfactory condition of the system.
The burner is automatically ignited and
starts operation after a safety time has
elapsed.
During initial start-up, the unit may
indicate a fault because of air in the gas
supply pipe.
After approx. 5 seconds, press the ”E
EE
E”
button to reset the burner. The ignition
procedure is repeated. This boiler
employs a direct spark ignition system.
8. Measure the running pressure; value
must be:
Use suitable measuring instruments
calibrated with a minimum resolution
of 0.04 “w.c. for measuring the
running pressure.
Running supply
pressure
Corrective action
under 4 ”w.c. Do not attempt adjustment. Call local gas utility to increase pressure.
4 to 14 “w.c. Start up boiler.
over 14 ”w.c. Do not attempt adjustment. Call local gas utility to decrease pressure.
Boiler valve must not be exposed to pressure over 14 ”w.c.
9. Enter gas type into Maintenance
Record on page 74 in this manual.
10. Switch off the ON/O switch “8”
on the boiler control, close the gas
shut-off valve, remove the
manometer and re-tighten the
screw Aat inlet gas pressure
port.
5418 913 b2
Fig. 7
Measuring gas supply pressure at inlet
gas pressure port
inlet
outlet
A
A
IMPORTA T
IMPORTA T
Ensure that there is no open flame in
the room.
WAR I G
ever purge a gas line into a
combustion chamber. ever use
matches, candles, flame, or other
sources of ignition for purpose of
checking leakage. Use a
soap-and-water solution to check for
leakage. A failure to follow this
warning could result in fire,
explosion, personal injury, or death.
WAR I G

Initial Start-up and Service
19
Steps (continued)
10. Set maximum input
I nitial start-up
HThe maximum input (or output) for
heating operation can be limited. The
limit is set via the modulation range.
The maximum adjustable heating
input (or output) is limited upwards
by the boiler coding card.
1. Start up boiler.
2. Press “9“ and “t
tt
tw
ww
w“ simultaneously
until a value flashes on the display
(e.g. “85”), and “A” and “Max.
output” appear. In the factory
default setting this value represents
100% of the rated input (or output).
3. With buttons “⊕/“ select the
required value in % of the rated
input (or output) as maximum input
(or output).
4. Confirm the set value with “ ”.
The input for DHW production can be
limited as well. To do so, change
coding address “6F” in coding level
.
11. Check all primary and secondary circuit connections for leaks
I nitial start-up S ervice
Check heating system and domestic
hot water connections (if applicable).
Ensure all connections are pressure
tight. Correct any leaks found on
fittings, pumps, valves, etc.
12. Perform combustion analysis
I nitial start-up S ervice
A CO measurement (see page 26) must
be taken before and after working on gas
appliances to eliminate risks to health
and to guarantee the satisfactory condition
of the system.
Record the measured combustion
values in the sequence stated in the
Maintenance Record on page 74 in this
manual.
5418 913 b2
IMPORTANT

Initial Start-up and Service
20
Steps (continued)
13. Check coaxial venting system for leaks (circular air gap measurement)
I nitial start-up
Viessmann strongly recommends that
the heating contractor perform a
simplified leak test during boiler
start-up. or this purpose it is sufficient
to measure the CO
2
concentration of
the combustion air in the coaxial gap of
the air intake pipe. The vent pipe is
considered sufficiently leak-proof if a
CO
2
concentration in the combustion
air no higher than 0.2% or an O
2
concentration no lower than 20.6% is
measured. If higher CO
2
values or
lower O
2
values are measured, check
venting system thoroughly.
The vent pipe adaptor comes with
two measurement ports, one for
combustion air-intake measurement
and one for flue gas measurement.
14. Remove burner assembly
S ervice
1. Switch the main power supply and
the ON/O switch “8” on the
boiler control to O .
2. Shut off the gas valve.
3. Unlock control unit Aand fold
down. Remove cover B.
4. Pull the cables from the fan motor
C, gas valves D(x2), ionization
electrode G, ignition module Eand
grounding wire F.
5. Release gas supply pipe fittings H
(x2).
6. Loosen the six Torx (T-30) screws
Kand remove burner.
7. Check burner gasket Lfor damage
and replace if required. Generally
replace the burner gasket
every 2 years.
Note the gasket between the gas
valve and the fitting.
5418 913 b2
Fig. 8
Combustion air measuring port
A
A
Fig. 9 Removing burner assembly
H
C
E
B A
G
L
K
F
D
To avoid damage to the burner, do
not lay burner on its cylindrical
burner tube.
Failure to heed this caution may
cause damage to the burner tube,
which may lead to improper
operation.
CAUTIO