Installation Instructions
For Corgi Registered Heating Engineers
Vitodens 200-W
Type WB2B, 4.8 to 35.0 kW
Wall mounted gas fired condensing boiler
Natural Gas and LPG version
VITODENS 200-W
5350 485 GB 06/2007
Please keep these instructions in a safe place
Index
Product information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Technical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Appliance dimensions/connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Sectional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Statutory requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Boiler position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Flue terminal position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Flue system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Plume kit installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Ventilation requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Hydraulic connections (typical system designs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Gas and electric supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Electricity supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Hydraulic components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Integral expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Installation of boiler
Unpacking the appliance (lifting advice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Preparing the connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Wall mounting bracket installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Installing the boiler and making connections (lifting advice) . . . . . . . . . . . . . . . . . . . . . . . . . 38
Safety discharge connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Condensate connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Gas connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
2
5350 485 GB 06/2007
Flue outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Index
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Combination boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
System boiler - Separate heating and DHW circuits (4 pipes) . . . . . . . . . . . . . . . . . . . . . . . 48
System boiler - Calling up code 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
System boiler - Y & S plan systems (2 pipes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
System boiler - Heating only (2 pipes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Routing cables and connecting cylinder sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Filling the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Venting the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Venting the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Checking diaphragm, expansion vessel and system pressure . . . . . . . . . . . . . . 56
Checking the gas type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Gas type conversion (LPG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Checking the static and supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Setting maximum output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Checking the balanced flue system for soundness . . . . . . . . . . . . . . . . . . . . . . . . 61
Check the gas installation for soundness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Flue gas emissions test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Heating system start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Function sequence and possible faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Fitting the outer case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Benchmark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
5350 485 GB 06/2007
Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
For maintenance and spares information see Service instructions 5692 672
3
Product information
Vitodens 200-W
Type WB2B, 4.8 to 35.0 kW
Set up for operation with natural gas.
Vitodens
Vitodens
Vitodens
Vitodens
Vitodens
Vitodens
Vitodens
200-W WB2B
200-W WB2B
200-W WB2B
200-W WB2B
200-W WB2B
200-W WB2B
200-W WB2B
GC number
System, 19kW
System, 26kW
Combi, 26kW
System, 30kW
Combi, 30kW
System, 35kW
Combi, 35kW
Appliance description
The Vitodens 200-W is a fully automatic,
wall hung, fan assisted balanced flue
condensing boiler for use with natural gas
(G20) and LPG. For gas type
conversions see page 63.
The Vitodens 200-W is fully modulating
and provides central heating outputs
between 4.8kW and 35.0kW and
instantaneous hot water outputs
between 4.8kW and 35.0kW.
The appliance always gives priority to
domestic water supply.
Certification details
The Vitodens 200-W is certified to comply
with the requirements of EN 483 and
EN 625 for use in GB and IE (Great
Britain and Ireland) using gas category
2H (G20 with a governed gas supply at
20 mbar (8 in. wg) inlet pressure).
4
41-819-14
41-819-15
47-819-09
47-819-16
47-819-10
47-819-17
47-819-11
The appliance is designed for use with
sealed primary water systems (only) and
incorporates a circulation pump, diverter
valve assembly, flow switch (combination
boiler only), DHW plate-type heat
exchanger (combination boiler only),
safety valve and CH expansion vessel.
A separate DHW expansion vessel is not
required. Internal frost protection and
an electronic control unit is fitted as
standard equipment and the boiler may
be used with any suitable room
thermostat, cylinder thermostat
and / or time clock in addition to the
optional controls available from
Viessmann.
Asbestos, mercury or CFCs have not
and will not be used in this product.
The appliance classification is either
C13 or C33 depending upon whether
a horizontal or vertical flue terminal is
used.
5350 485 GB 06/2007
Boiler Type
Safety instructions
Please follow these safety instructions closely to prevent the risk of
accidents and material damage.
Safety instructions explained
If you notice a smell of gas
Danger
Danger
This symbol warns against the
risk of injury.
Escaping gas can cause
explosions which may lead
to serious injury.
Please note
This symbol warns against the
risk of material damage and
environmental pollution.
Note
Details identified by the word ‘Note’
contain additional information.
Target
These instructions are exclusively
designed for qualified personnel.
• Work on gas equipment must only
be carried out by a CORGI registered
heating engineer.
• Electrical work must comply with
Part P of the building regulations.
• The system must be commissioned by
a CORGI registered heating engineer.
• Do not smoke. Prevent
naked flames and sparks.
• Do not operate electrical
switches or equipment.
• Ventilate the area by
opening the windows and
doors.
• Close the gas supply
control valve.
• Remove all personnel from
the danger zone.
• Observe the safety
regulations of your gas
supplier, found on the gas
meter.
• Notify your CORGI
registered heating engineer
or TRANSCO on 0800 111
999.
If you smell flue gas
Danger
Flue gas may lead to
life-threatening poisoning.
• Shut down the boiler and
system
5350 485 GB 06/2007
• Ventilate the area.
• Close all doors in
unaffected areas.
• Do not operate electrical
switches or equipment.
5
Safety instructions (cont.)
• Close the main gas shut-off valve
and safeguard against unauthorised
reconnection.
• Isolate the system from the electricity
power supply, check that it is no longer
‘live’ and safeguard the electricity
supply against unauthorised
reconnection.
Please note
Electronic modules can be
damaged by electro-staticdischarges. Touch earthed
objects, such as heating or
water pipes, to discharge
static loads ensuring any
appropriate electrical safety
steps have been taken in
advance.
6
Repair work
Please note
Repairing components which
fulfil a safety function can
compromise the safe
operation of your heating
system. Replace faulty
components only with original
Viessmann spare parts.
Ancillary components
Please note
Parts which have not been
tested together with the
heating system can
compromise its function.
Installing non-authorised
components and nonapproved modifications/
conversions can compromise
safety and may invalidate the
appliance warranty. For
replacements, use only
original spare parts from
Viessmann or those which
are approved by Viessmann.
5350 485 GB 06/2007
Working on the system
Technical Specification
General Specifications and Performance Data.
Vitodens 200-W WB2B
Appliance
Mode
Combi 26 kW
Combi 30 kW
Combi 35 kW
8.8 to 35.0
Unit
Rated Central heating Output
Tf/Tr 50/30 ºC (condensing)
KW
6.5 to 26.0
8.8 to 30.0
Tf/Tr 80/60 ºC (non condensing)
KW
5.9 to 24.1
7.9 to 27.8
7.9 to 32.2
Rated Central Heating Input (net)
KW
6.2 to 24.7
8.3 to 28.5
8.3 to 33.0
Rated Central Heating Input (gross)
KW
6.9 to 27.4
9.2 to 31.1
9.2 to 36.6
Domestic Hot Water Output range
KW
5.9 to 26.0
7.9 to 30.0
7.9 to 35.0
Domestic Hot Water Input (net)
KW
6.1 to 27.1
8.2 to 31.3
8.2 to 36.5
3.49
Maximum gas rate (CH mode)
m3/h
2.61
3.01
Maximum gas rate (DHW mode)
m3/h
2.87
3.31
3.86
%
90.0
90.0
90.0
Seasonal efficiency (SEDBUK)
SEDBUK rating
A
Nox classification
DHW performance @ 35ºC temp rise
Class 5
l/min
10.7
ºC
10 to 57
Maximum mains water inlet pressure
bar
10
Minimum mains water inlet pressure
for max DHW flow rate
bar
1
Minimum mains water inlet pressure
for operation
bar
0.5
Minimum DHW flow rate for operation
l/min
3
Minimum CH system pressure - cold
bar
1
Maximum CH system pressure - hot
bar
2.5
CH flow temperature
ºC
30 to 80
Integral expansion vessel capacity
ltr
10
Integral expansion vessel pre-charge
pressure
bar
0.75
Max CH system water content using
fitted expansion vessel @ 0.75 bar
and 80ºC
ltr
14.3
125
Total water capacity
ltr
7.8
8.2
Lift weight
kg
46
48
48
Total weight (incl packaging)
kg
51
53
53
Electricity supply
5350 485 GB 06/2007
12.3
DHW temperature range
230v, 50Hz
Internal fuse
A
Maximum power consumption
W
6.3
95
Water protection rating
115
mm
60
Outer flue duct diameter
mm
100
Product ID
115
IP x4D
Inner flue duct diameter
Gas council number
8.2
47-819-09
47-819-10
CE-0085 BR 0432
47-818-11
7
Technical Specification
General Specifications and Performance Data.
Vitodens 200-W WB2B
Appliance
Mode
System 19 kW System 26 kW
System 30 kW
System 35 kW
8.8 to 35.0
Unit
Rated Central Heating Output
Tf/Tr 50/30 ºC (condensing)
KW
4.8 to 19.0
6.5 to 26.0
8.8 to 30.0
Tf/Tr 80/60 ºC (non condensing)
KW
4.3 to 17.5
5.9 to 24.1
7.9 to 27.8
7.9 to 32.2
Rated Central Heating Input (net)
KW
4.5 to 17.9
6.2 to 24.7
8.3 to 28.5
8.3 to 33.0
9.2 to 36.6
Maximum gas rate
Seasonal efficiency (SEDBUK)
kW
5.0 to 19.9
6.9 to 27.4
9.2 to 31.1
m3/h
1.89
2.61
3.01
3.49
%
90.1
90.1
90.1
90.1
SEDBUK rating
A
Nox classification
Class 5
Minimum CH system pressure - cold
bar
1
Maximum CH system pressure - hot
bar
2.5
CH flow temperature
ºC
30 to 80
Integral expansion vessel capacity
ltr
10
Integral expansion vessel pre-charge
pressure
bar
0.75
ltr
125
Max CH system water content using
fitted expansion vessel @ 0.75 bar
and 80ºC
Total water capacity
ltr
7.2
7.8
8.2
8.2
Lift weight
kg
43
45
47
47
Total weight (incl packaging)
kg
48
50
52
52
115
115
47-819-16
47-819-17
Electricity supply
Internal fuse
Maximum power consumption
230v, 50Hz
A
W
6.3
85
Water protection rating
95
IP x4D
Inner flue duct diameter
mm
60
Outer flue duct diameter
mm
100
Gas council number
Product ID
8
41-819-14
47-819-15
CE-0085 BR 0432
5350 485 GB 06/2007
Rated Central Heating Input (gross)
Appliance dimensions/connections
A
Heating flow Rp 3/4" to 22mm Cu
B
DHW Rp 1/2" (combi boiler)
to 15mm Cu
Cylinder flow G 3/4" (boiler)
to 15mm Cu
5350 485 GB 06/2007
C
Gas Connection 1/2" to 15mm Cu
D
Cold water Rp 1/2" (combi boiler) to
15mm Cu
Cylinder return G 3/4" (boiler) to
|15mm Cu
E
Heating return Rp 3/4" to 22mm Cu
F
Fill & drain valve
K
Condensate discharge pipe
9
Installation clearances
10
A
Behind a cupboard door.
B
Space required for servicing.
5350 485 GB 06/2007
The following minimum clearances (mm) must be maintained for installing
and maintaining the appliance.
Sectional diagram
5350 485 GB 06/2007
Combination boiler illustrated
11
Installation requirements
Statutory requirements
The appliance is suitable only for installation in GB and IE and should be installed in
accordance with the rules in force. In GB, a corgi Registered Installer must carry out the
installation. It must be carried out in accordance with the relevant requirements of the:
Gas safety (installation and use) regulations (current issue)
It is in your own interest and safety to ensure that the law is complied with.
In Ireland (IE), the installation must be
carried out by a Competent Person and
installed in accordance with the current
edition if I.S.813 “Domestic GAs
Installtions”, the current Building
Regulations and reference should be
made to the current ETCI rules for
electrical installation.
It should also be in accordance with the
relevant recommendations in the current
editions of the following British Standards
and Codes of Practice: BS 5449, BS 5546,
BS 5440:1, BS 5440:2, BS 6798, BS 7593,
BS 6891, IGE/UP/7 and IS 813 for IE
Boiler position
The following limitations must be
observed when siting the boiler:
• The boiler is not suitable for external
installation. The position selected for
installation should be within the
building, unless otherwise protected
by a suitable enclosure and must allow
adequate space for installation,
servicing and operation of the appliance
and for air circulation around it.
12
All CORGI Registered installers are
required to notify building control when
they have installed or exchanged a gas
appliance in a residential dwelling, this
can be done via CORGI.
CORGI will then issue either a Building
Compliance Certificate (for England and
Wales) or a Declaration of Safety
(Scotland, Northern Ireland, Isle of Man
or appliances out of the scope of Building
Regulations) to the homeowner, which
will confirm that the work has been
carried out by a competent CORGI
Registered Installer. This document will
be used to form part of the Home
Information Pack (HIP).
Please note
Manufacturers instructions
must not be taken in any
way as overriding statutory
obligations.
• The position must allow for a suitable
flue system and terminal position.
The boiler must be installed on a flat
vertical wall capable of supporting
the weight of the appliance and any
ancillary equipment when full.
• Due consideration should be given to
the routing of the condensate drain
from the chosen position.
• If the boiler is to be fitted in a timber
framed building it should be fitted in
accordance with IGE/UP/7. If in doubt
advice must be sought from the
Institute of Gas Engineers.
5350 485 GB 06/2007
In addition to the above regulations, this
appliance must be installed in accordance
with the current IEE Wiring Regulations
for electrical installation (BS 7671), local
Building Regulations, the Building
Standards (Scotland) (Consolidation)
Regulations, bye laws of the local water
undertaking and Health and Safety
Document No. 635 ‘The Electricity at
Work regulations 1989’.
Flue terminal position
• If the appliance is to be installed in a
room containing a bath or shower, any
electrical switch or control
utilising mains electricity must be so
situated that it cannot be touched by a
person using the bath or shower.
Attention is drawn to the
requirements of BS 7671 (the
current I.E.E Wiring Regulations) and in
Scotland the electrical provisions of
the Building Regulations
applicable in Scotland.
• A compartment used to enclose the
appliance must be designed and
constructed specifically for this
purpose. An existing cupboard or
compartment may be used provided it
is modified accordingly. BS 7698:2000
gives details of the essential features
of cupboard / compartment design,
including airing cupboards.
• Where installation will be in an unusual
location, special procedures may be
necessary. BS 6798 gives detailed
guidance on this aspect.
Flue termination position
Horizontal flue system
5350 485 GB 06/2007
Position
Minimum Spacing
A
Directly below an openable window, air vent or any other ventilation opening
300mm
B
Below a gutter, drain or soil pipe
75mm
13
Flue terminal position (cont.)
Position
Minimum Spacing
C
Below eaves
200mm
D
Below a balcony
200mm
E
From vertical drain or soil pipes
150mm
F
From internal and external corners
300mm
G
Above adjacent ground or balcony level/roof
300mm
H
From a surface facing the terminal
600mm
I
Facing terminals
1200mm
J
From opening door/window in carport into dwelling
1200mm
K
Vertically from a terminal on same wall
1500mm
L
Horizontally from a terminal on same wall
300mm
M
Adjacent to opening
300mm
N
Below carport/roof
200mm
14
5350 485 GB 06/2007
Vertical flue systems
Flue terminal position (cont.)
Position
O
From adjacent wall
300mm
P
From adjacent opening window
1000mm
Q
From another terminal
600mm
R
Minimum height
300mm
Flue Terminal Location
Detailed recommendations for flue
installation are given in BS 5440:1. The
following notes are for general guidance.
• The boiler must be installed so that the
terminal is exposed to external air.
• It is important that the position of the
terminal allows free passage of air across
it at all times.
• It is essential to ensure that products of
combustion discharging from the terminal
cannot re-enter the building or any other
adjacent building, through ventilators,
windows, doors, other sources of natural
air infiltration or forced ventilation / air
conditioning.
• The minimum acceptable dimensions
from the terminal to obstructions and
ventilation openings are specified above
(BS 5440 Part 1).
5350 485 GB 06/2007
Minimum Spacing
• If the terminal discharges into a pathway
or passageway check that combustion
products will not cause nuisance and
that the terminal will not obstruct the
passageway.
• Where the lowest part of the terminal is
fitted less than 2m above ground, above
a balcony or above a flat roof to which
people have access, the terminal must
be protected by a purpose designed
guard. (Available as an optional extra).
• Where the terminal is fitted within
850mm of a plastic or painted
gutter, or 450mm of painted eaves, an
aluminium shield at least 750mm long
must be fitted to the underside of the
painted surface.
• The air inlet / flue outlet duct must
not be closer that 25mm to
combustible material.
• Due to the high efficiency of the boiler
the terminal may emit a plume of
vapour. This is normal but positions
where this would cause a nuisance
should be avoided.
15
Flue system
Flue gas temperature protection
Installation notes
The flue pipes are approved for flue
gas temperatures up to 120 ºC. The interior
design of Viessmann condensing boilers
ensures that the maximum permissible flue
gas temperature will not be exceeded.
• Keep the flue gas path as short as
possible and with the smallest possible
number of bends.
• Check the seating of the gaskets in all
couplings.
• Only use the special gaskets supplied.
Concentric Horizontal Flue System
• Only use the components supplied with
the PP flue gas system.
Standard horizontal flue kit: The appliance
can be supplied complete with a standard
concentric horizontal balanced flue kit and
factory fitted flue terminal assembly,
suitable for flue lengths of up to 620mm
from the centre of the flue outlet, which
equates to wall thicknesses of up to
480mm for rear flues and 463mm for side
flues including minimum clearances.
• Slide the pipes into each other whilst
turning them slightly.
• An extra 87° elbow can be used but this
reduces the maximum permissible
length by 1m . An extra 45° elbow can
be used but this reduces the maximum
permissible length by 0.5m .
16
A
Combined length of flue pipe max 6m
B
Flue pipe (can be shortened as necessary)
5350 485 GB 06/2007
Extension flue ducts can be used to
increase the straight flue length up to 6m
and include one 87º elbow.
Flue system (cont.)
Concentric Vertical Flue System
The vertical flue kit option with extensions
may be used for up to 10m total flue
length.
Before commencing the installation refer to
diagram below to determine which optional
extension kits are required, if any.
An extra 87° elbow can be used but this
reduces the maximum permissible length
by 1m. An extra 45° elbow can be used
but this reduces the maximum permissible
length by 0.5m.
5350 485 GB 06/2007
A
Combined length of flue pipe max.10m.
B
Flue pipe (can be shortened as necessary)
17
Flue system (cont.)
Elbows and extensions
Extension
Elbow 45º
18
5350 485 GB 06/2007
Elbow 87º
Plume kit installation instructions
The plume kit enables the relocation of the flue outlet of a standard horizontal flue system
to another position and is available as an optional extra, please contact your supplier for
further information.
Routing options
5350 485 GB 06/2007
A
Plume kit standard delivery 2m max
length
Ensure the max. length of the entire
balanced flue system is not exceeded.
The max. length is reduced by 1m when
using a further 87° bend or 2 x 45° bends.
B
Plume kit standard delivery
additional options:
• 2 x 87º bends
• 1 pipe 1m long
C
Plume kit standard delivery
additional options:
• 2 x 45º bends
• 1 pipe 1m long
Deduct 3m from the max. possible
standard concentric horizontal flue length
and add the standard plume kit max length
to give max. length of entire flue system.
ie. 6m - 3m +2m = 5m max.
19
Fitting the plume kit
1. Unhook the external wall terminal of the
flue at the external pipe and extract the
flue with the end piece and the wall
bezel.
2. Push the gasket and flue bend into the
connector.
20
5350 485 GB 06/2007
3. Push the flue bend with the connector
into the replacement pipe of the external
wall terminal (transparent, 583mm long).
Fitting the plume kit (cont.)
4. Push the replacement pipe with the
connector and flue bend into the inner
flue duct and secure with the screws
supplied.
5350 485 GB 06/2007
5. Refit the wall bezel.
21
Fitting the plume kit (cont.)
6. Fit the flue pipes and bends in
accordance with the selected installation
method and secure with the fixing
clamps supplied.
7. Insert the rodent protection grill into the
uppermost bend.
Detailed recommendations for air supply
are given in BS 5440:2. Please see
additional notes below.
22
• It is not necessary to have a purpose
provided air vent in the room or internal
space in which the appliance is installed.
• If the boiler is to be installed in a
cupboard or compartment, no
permanent air vents are required for
cooling purposes in the cupboard or
compartment, however, it is essential
to ensure that the minimum clearances
stated (page 10) are maintained.
5350 485 GB 06/2007
Ventilation Requirements
Hydraulic connections
Heating System
(typical system designs)
• The Vitodens 200-W is designed for
connection to sealed central heating
water systems only.
• A sealed system must only be filled by a
competent person.
Combination boiler
Note
The boiler incorporates an internal bypass
to ensure adequate water flow. Certain
thermostatic radiator valve manufacturers
may require that a bypass valve is fitted
in addition to the integral by pass.
Specifications as to the individual
requirements should be sought prior
to installation.
Filling Loop
5350 485 GB 06/2007
This boiler is not fitted or supplied with a
filling loop. Any filling loop being fitted
should comply with the water supply
(water fittings) regulations 1999 Section
G24.1 and G24.2. A filling loop should be
fitted at some point to allow the CH system
to be filled.
23
Hydraulic connections
Hydraulic circuits
24
A
Boiler
B
E
Plate-type heat exchanger
DHW outlet
Heat exchanger
F
C
Circulation pump
G
Cold water inlet
D
Three port diverter valve
H
Heating circuit
5350 485 GB 06/2007
Combination boiler
Hydraulic connections
System boiler using separate connections for DHW Cylinder & heating circuits
(4 pipes)
G
G
A
DHW cylinder
E
Three port diverter valve
B
Boiler
F
Heating circuit
C
Heat exchanger
G
DHW Circuit
D
Circulation pump
5350 485 GB 06/2007
Note
• The flow and return pipes to the cylinder
can be connected either way round,
however the optimum method would be
to connect the flow pipe to the bottom
connection of the cylinder
• This hydraulic circuit must be chosen if
the controls are upgraded to allow for
weather compensation.
25
Hydraulic connections
Weather compensated control instructions are supplied with the replacement
controller and outside sensor kit.
26
A
DHW cylinder
E
Three port diverter valve
B
Boiler
F
Heating circuit
C
Heat exchanger
G
DHW circuit capped off
D
Circulation pump
5350 485 GB 06/2007
System boiler when connected to Y or S plan systems (2 pipes).
Gas and electric supply
Gas supply
• The Gas Supply should be checked
at the installation planning stage in
order to establish the availability of
an adequate supply of gas.
• The governor at the meter must give
a constant outlet pressure of 21 mbar
+/- 1mbar when the appliance is
running.
• A gas meter can only be connected by
the gas supplier or their contractor.
• The gas supply line should be purged.
WARNING: Before purging open all
doors and windows, also extinguish any
cigarettes, pipes and any other naked
lights.
• An existing meter and / or pipework
should be of sufficient size to carry
the maximum boiler input plus the
demand of any other installed appliance.
(BS 6891: 1988).
• The complete installation must be
tested for gas soundness.
Electricity supply
• Wiring external to the appliance must be
in accordance with BS 7671 (the current
I.E.E Wiring Regulations) for electrical
installation.
• The mains cable must be at least 0.75
mm 2 (24/0.2 mm) PVC insulated to
BS 6500 table 16.
5350 485 GB 06/2007
• WARNING: THIS APPLIANCE MUST BE
EARTHED. (Failure to provide a
satisfactory earth connection would be
a safety hazard and may also result in
appliance malfunction).
• The method of connection to the
mains supply must facilitate complete
electrical isolation of the appliance.
Either a 3A fused three pin plug and
unswitched shuttered socket outlet,
both complying with BS 1363, or a 3A
fused double pole switch having a 3mm
contact separation in both poles and
serving only the boiler (and its external
controls) may be used.
27
Electrical connections
Electrical Connections
Both combination and system boilers
require a permanent live 240V supply.
Combination boiler: Room temperature
control is achieved by connecting a
switched live 240V supply to the boiler.
System boiler: For Y & S Plan systems
a switched live 240V supply is required
to be connected to the boiler. A Viessmann
cylinder sensor is a thermistor and is
connected directly to the boiler. Room
temperature control is achieved by
connecting a 240V switched live supply
to the boiler.
External controls
To ensure optimum performance,
Viessmann offer a range of external
controls (i.e. weather compensation
Vitotronic 200). However the appliance
may be used with any certified 240V
room thermostat.
Internal controls
28
5350 485 GB 06/2007
The Vitodens 200-W is supplied fitted with
an internal Vitotronic HC2 7 Day controller
for CH and DHW on both the combination
and system boiler models.
Constant temperature control unit
Control and display elements
A
Pressure gauge
E
User interface
B
Fault display (red)
F
ON/OFF switch
C
ON indicator (green)
D
Reset button
Heating mode
5350 485 GB 06/2007
The selected set boiler water temperature
will be maintained when a demand is
created by the room thermostat and the
heating programme is set to DHW and
central heating
. The boiler water
temperature will be maintained at the
default frost protection temperature when
there is no demand.
The boiler water temperature will be
limited:
• To 74ºC by the control thermostat
inside the burner control unit.
• To 82ºC by the electronic temperature
limiter inside the burner control unit.
• To 100ºC by the temperature limiter in
the safety chain (interlocks the burner
control unit).
29
Constant temperature control unit (cont.)
DHW heating with gas fired combi boilers
If the flow switch detects that hot water is
being drawn (>3 l/min) then the burner, circulation pump and 3-way valve are
switched on or changed over.
The burner modulates according to the
DHW outlet temperature (max. 57ºC) and
is limited by the temperature limiter (82ºC)
on the primary side.
DHW heating with gas fired system boilers - utilising Viessmann DHW sensor
30
In the delivered condition, the set boiler
water temperatures is 20K higher than
the set DHW temperature (adjustable via
coding address “60“). The burner will be
switched OFF and the circulation pump
run-on time will begin, if the actual
cylinder temperature exceeds the set
cylinder by 2.5K.
5350 485 GB 06/2007
The burner, the circulation pump and the
3-way valve are started or changed over if
the cylinder temperature falls 2.5 K below
the set cylinder temperature.
5350 485 GB 06/2007
Constant temperature control unit
A
Heating programmes ON/OFF
B
Party function
H
C
Information
M Central heating time programme
D
Reset
K
E
Setting values
F
Valve adjustment
G
Boiler water temperature
Emissions test switch
(only for qualified personnel)
Boiler water temperature
31
Hydraulic components in the boiler
Pump
Pressure drop in mbar
The following figure shows the pump head that is available in excess of the hydraulic
resistance of the appliance.
Flow rate in l/h
Expansion vessel
Vessel charge and initial system pressure
Total water content of system using 10
litre capacity expansion vessel supplied
with appliance
For systems having larger capacity,
multiply the total system capacity in litres
by the factor to obtain the total minimum
expansion vessel capacity required
32
Further details are available in the current
issues of BS 5449 and BS 6798.
Note
If the pressure gauge rises by 1.5 bar when
the appliance is at maximum temperature
with all radiators in circulation an extra
expansion vessel is required.
bar
0.5
0.75
1.0
1.5
psi
7,3
10,9
14,5
21,8
litres
136
125
103
71
gallons
30
27
22
15
0,08
0,097
0,11
0,16
5350 485 GB 06/2007
The table shows the maximum system
volume that the integral expansion vessel
can sustain under different charge pressure
conditions. If the system volume exceeds
that shown, an additional expansion vessel
must be fitted and connected to the
heating system primary return pipe as
close as possible to the appliance. If an
extra vessel is required, ensure that the
total capacity of both vessels is adequate.
Installation of boiler
Unpacking the appliance
The appliance is supplied in 2 separate packages plus any optional flue packages. Check the
availability and contents of each package before commencing the installation.
Boiler package
Combi boiler
• Boiler (assembled) with control fitted
• 5 shut-off valves + CH and Gas pipe tails
• Wall mounting fixture
• 2 wall plugs and 2 screws
• Installation template
• Installation instructions
• Service instructions
• User instructions
• Warranty registration
System boiler
• Boiler (assembled) with control fitted
• 3 shut-off valves + CH and Gas pipe tails
• 2 connection elbows
• Wall mounting fixture
• 2 wall plugs and 2 screws
• Installation template
• Installation instructions
• Service instructions
• User instructions
• Warranty registration
Safety lifting advice
When handling or lifting the boiler body always use safe techniques - keep your back straight,
bend your knees, don’t twist - move your feet, avoid bending forwards and sideways and
keep the load as close to your body as possible. Always ensure that the lift weight is within
your own individual capability, if in doubt seek advice.
Where possible transport the boiler using a sack truck or other suitable trolley.
5350 485 GB 06/2007
Always grip the boiler firmly, and before lifting feel where the weight is concentrated to,
establish the centre of gravity, repositioning yourself as necessary before carrying out the lift.
33
Preparing the connections
Note
For dimensions for on-site preparations of the gas and water connections see “Overall
Appliance Dimensions“ on page 9
1. Prepare the hydraulic connections.
3. Prepare gas connection to BS 6891
2. Clean and flush the heating system
to BS 7593. Use only the following
approved additives.
4. Prepare the electrical connections
• Mains cable: H05V2V2-F 3 G
0.75 mm2, 230 V~, 50 Hz.
Sentinel or Fernox
• Anti-scaling
• Anti-bacterial
• Anti-freeze
- Glycol (30% max)
• Anti-corrosion
• Cleaner
A 1.5m power cable is part of
the standard delivery.
• Accessory cables: H05V2V2-F 3 G
0.75 mm2 for connection of room
temperature control and DHW
cylinder control (system boiler).
The use of non approved additives will
invalidate the warranty on this product.
Do not use non approved additives or any
chemicals from the following list.
• Boiler noise silencer
• Leak sealer
• Fuel, Oil, Grease, Washing powder
/liquid
• Pipe jointing compound (like boss white
or boss green, Sentinel)
• Anti-blockage
Note
34
5350 485 GB 06/2007
Additive combinations are permitted only if
approved additive suppliers recommend it
and always according to suppliers’ dosage
recommendation.
Wall mounting bracket installation
Important
5350 485 GB 06/2007
Before installing the appliance, check that the chosen position is suitable, adequate
installation clearances are available and that the requirements for flue terminal position are
satisfied.
35
36
5350 485 GB 06/2007
Wall mounting bracket installation (cont.)
Wall mounting bracket installation (cont.)
Safety lifting advice
When handling or lifting the boiler body always use safe techniques - keep your back straight,
bend your knees, don’t twist - move your feet, avoid bending forwards and sideways and
keep the load as close to your body as possible. Always ensure that the lift weight is within
your own individual capability, if in doubt seek advice.
5350 485 GB 06/2007
Where possible transport the boiler using a sack truck or other suitable trolley.
Always grip the boiler firmly, and before lifting feel where the weight is concentrated to,
establish the centre of gravity, repositioning yourself as necessary before carrying out the lift.
37
Installing the boiler and making all connections
Remove front panel and mount boiler
Note
A
Heating flow
D
B
DHW (combination boiler)
Cylinder flow (system boiler)
Cold water (combination boiler)
Cylinder return (system boiler)
E
Heating return
C
Gas connection
F
Fill & drain valve
Note
For operation without DHW cylinder or for Y/S plan systems, cap off connections B and D and
do not fit a Viessmann cylinder sensor.
38
5350 485 GB 06/2007
The front panel must be removed before mounting the boiler.
Safety discharge connection
Connect a suitable discharge pipe to
the pressure relief valve outlet. The pipe
must discharge to a safe place and be a
minimum of 15 mm copper and slope
continually downwards.
The pipe from the pressure relief valve
must not discharge above an entrance,
window or any type of public access area.
The pipe must be routed to a position
so that any discharge of water, possibly
boiling, or steam, cannot create any
danger to persons, damage to property
or external electric components and
wiring. The point of discharge must be
clearly visible.
5350 485 GB 06/2007
A
Ø15mm copper
To ease future servicing it is advisable
to use a compression fitting to extend the
discharge pipe.
39
Condensate connection
Connect the condensate drain and discharge
correctly as detailed overleaf.
A
A
Ø 22mm plastic condensate pipe
Routing
The condensate pipe can terminate into any one of the following areas.
It is always best practice to terminate the condensate pipe via an internal waste system.
• The pipe run should take the shortest practical route with a downward slope of at least
2.5 ° (4.5 mm/m)
• The external pipework should be insulated to prevent freezing
• The pipework should terminate as close as possible to the ground or drain, whilst still
allowing the condensate to discharge safely
40
5350 485 GB 06/2007
• The condensate pipe must be of non corrosive material, preferably plastic
Note: ferrous materials or copper must not be used
Condensate connection (cont.)
5350 485 GB 06/2007
Terminating into an external waste system
A
Ø22mm plastic condensate pipe
B
External length of pipe 3m max.
C
Open end direct into gully, below
ground but above water level
41
Condensate connection (cont.)
D
42
A
Ø22mm plastic condensate pipe
B
External length of pipe 3m max.
C
Open end direct into gully, below
ground but above water level
Terminating into the rainwater system
A
Ø22mm plastic condensate pipe
B
Internal soil and vent stack
D
An air break may be required
5350 485 GB 06/2007
Terminating into an external purpose made
soakway
Filling the siphon with water
1. Remove retaining clip A and
siphon B
2. Fill siphon B with water
3. Fit siphon B and secure with
retaining clip A
Gas connection
Connect the gas supply to the gas inlet
connection on the gas cock A . Upon
completion, tighten the union connection.
5350 485 GB 06/2007
Carry out a gas soundness test on the
whole installation including the meter and
purge the supply in accordance with
BS 6891:1988.
43
Flue outlet
External wall terminal C13
2. Insert external flue terminal through
the wall.
3. Secure the wall bezel internally.
44
4. Connect external flue terminal to
pipe bend. Install flue and supply pipes
accordingly, with a minimum of 3° slope
(ca. 50 mm/m) towards the boiler.
5. Secure the wall bezel externally.
5350 485 GB 06/2007
1. Insert pipe bend into the boiler
flue outlet.
Flue outlet (cont.)
Vertical roof terminal C33
5350 485 GB 06/2007
1. Install the universal roof tile.
2. Install flue and supply pipes accordingly.
3. Push roof terminal through roof and
insert into flue/supply pipe.
4. Seal roof terminal.
45
Electrical connections
46
5350 485 GB 06/2007
Opening the control unit casing
Electrical connections
Combination boiler
A
40
Mains power connection 230 V ~ 50 Hz
(green plug).
Do not interchange the supply conductors
L and the neutral conductor N.
A two pole shut off switch with a contact
separation of at least 3mm must be fitted
in the mains supply to the boiler with a
maximum fuse value of 3A.
A 1.5m power cable is part of the standard
delivery.
96
Mains connection room temperature
control (black plug).
A
Room Thermostat 240V connected into
plug 96.
Time the heating and DHW via the integral
Vitotronic HC2 controller.
Note
A Vitotrol 100 UTA/D can be connected to
plug 96, however the integral Vitotronic
HC2 7 day controller would require the
central heating to be set to permanently
on, please refer to user guide.
5350 485 GB 06/2007
If the Vitotronic HC2 controller is
upgraded to allow for weather
compensation, the instructions for this
option are supplied with the replacement
controller and outside sensor kit.
47
Electrical connections (cont.)
• The Viessmann low voltage DHW
cylinder sensor must be used.
•
The low voltage DHW cylinder sensor
must be attached to the cylinder by
secure means to ensure good contact
is made with the cylinder itself, not the
insulation, or fitted into a purpose made
pocket.
• The low voltage DHW cylinder sensor
connects to plugs in the cable harness
pictured on page 56.
• Connect permanent mains supply and
room thermostat (as combination boiler
previous page).
Note
Where an unvented hot water cylinder
is used the safety thermostat connected
to the cylinder that controls the 2-port
safety valve (requirement for G3 of the
building regulations) can be operated by
an independent remote timer or via an
internal H1 or H2, or external H1
Viessmann accessory.
Along with other functions the H1, H2,
internal /H1 external accessories when
connected provide the option of a timed
240V output. Follow the installation
instructions supplied with the accessory.
Plug 28 on the H1 extension must be used
to connect the 2 port safety valve via the
cylinder high limit thermostat. The
Vitotronic internal boiler control must be
set to external cylinder loading pump to
activate the timed 240V supply.
If the Vitotronic HC2 controller is
upgraded to allow for weather
compensation the instructions for this
option are supplied with the replacement
controller and outside sensor kit.
This is done via coding address 53 in
coding 2.
• The DHW will always take priority over
the central heating when timed demand
is selected.
A Vitotrol 100 UTA/D can be connected to
plug 96, however the integral Vitotronic
HC2 7 day controller would require the
central heating to be set to permanently
on, please refer to user guide.
• Time the heating and DHW via the
integral Vitotronic HC2 controller.
48
Note
Note
5350 485 GB 06/2007
Separate hydraulic connections for DHW
cylinder and heating circuits (4 pipes).
Coding
Calling up code 2
Note
• On weather-compensated control units,
codes are displayed as plain text.
• Codes that are irrelevant due to the
system equipment level or the setting
of other codes will not be displayed.
Switch on the boiler using button F page 29 and button A page 31.
Press the following keys:
1.
2.
+
to confirm
OK
3. + / _
4.
OK
5350 485 GB 06/2007
for coding address 53; the
address flashes
to confirm; the value flashes
5. + / _
6.
OK
7.
+ / _
8.
simultaneously for approx. 2 s.
for the selected value 3, this will
change the code to function relay
external cylinder loading pump
to confirm; the display briefly
shows “accepted” (for weathercompensated control units); the
address flashes again.
+
for the selection of further
addresses
simultaneously for approx. 1 s;
code 2 is terminated.
49
Y & S Plan system (2 pipes) (Hydraulic cylinder Flow and Return connections
capped off at the boiler)
• Connect the required permanent live
supply to plug 40 as combination boiler.
• An external independent twin channel
remote timer is used.
• The Vitotronic HC2 integral timer must
be set to constant operation.
• The switched live supply from Y & S
plan electrical configurations (that controls the pump and boiler) is connected
to plug 96 terminal 1.
• The Viessmann low voltage DHW
sensor must not be fitted, this means
the 3 port valve integral to the boiler
will remain open correctly.
• Vitotrol 100 UTA/D external controls are
not compatible.
• Control heating & DHW via external
independent timer.
Heating only system (2 pipes)
• Connect the required permanent live
supply to plug 40 as previous page.
• Connect room thermostat to plug 96 as
combination boiler.
• The Viessmann low voltage DHW
sensor must not be fitted, this means
the 3 port valve integral to the boiler
will remain open correctly.
• A Vitotrol 100 UTA/D can be connected
to plug 96, however the integral
Vitotronic HC2 7 day controller would
require the central heating to be set to
permanently on, please refer to user
guide.
50
5350 485 GB 06/2007
• Time heating via integral Vitotronic HC2
control.
Electrical connections (cont.)
Routing the connecting cables
Note
If connecting cables touch hot components they will be damaged.
5350 485 GB 06/2007
When routing and securing connecting cables on site, ensure that the maximum
permissible cable temperatures are not exceeded.
A
Low voltage connections
F
Cable grommet for power supply
B
230 V mains connections
5
C
Internal extension H1, H2
Plugs for connecting the DHW
cylinder temperature sensor to
the cable harness.
D
Main PCB
E
Communications module
Remove the existing cable
grommet when using larger
cross-sections (up to Ø 14mm).
Secure the cable with cable
grommet F (black) integrated
into the casing base.
51
Closing the control unit casing
52
5350 485 GB 06/2007
4.
Further details regarding the individual steps
Filling the heating system
Note
Unsuitable fill water increases the
level of deposits and corrosion
and may lead to boiler damage.
• Thoroughly clean and flush the entire
heating system prior to filling with water
to BS7593
• Only use fill water of potable quality.
1. Check the inlet pressure of the
expansion vessel.
2. Close the gas shut-off valve.
3. Fill and vent the system through your
external temporary filling loop ensuring
that most of the air has been removed
from all drain and vent points on the
system. (Minimum system pressure
>0.8 bar).
• Soften fill water harder than 3.0 mol/m3 ,
e.g. using a small softening system for
heating water (see Viessmann Vitoset
price list).
•
An antifreeze additive suitable for heating systems can be mixed with the fill
water. The antifreeze manufacturer
must verify its suitability.
4. If the control unit was already switched
ON before filling began: Switch ON
the control unit and activate the filling
programme via code “2F:2”. See page
54 for coding 2
5. Close boiler drain valve A .
6. Close the shut-off valves on the heating
water side.
5350 485 GB 06/2007
Filling program
In the delivered condition, the diverter
valve is set to its central position, enabling
the system to be filled completely. After
switching ON the control unit, the diverter
valve is no longer in its central
position.
The diverter vavle can be moved via code
2F:2 into the central position. In this
position, the control unit can be switched
OFF and the system can be filled
completely.
53
Further details regarding individual steps (cont.)
Venting the boiler
1. Close the shut-off valves on the heating
water side.
2. Connect the drain hose between top
valve B and a drain outlet.
3. Open valves A and B and vent at
main pressure until no sound of escaping
air can be heard.
4. Close valves A and B and open the
heating water shut-off valves.
1. Close the gas shut-off valve and switch
ON the control unit.
54
5350 485 GB 06/2007
Venting the heating system
Venting
Venting program
During the venting program, the circulation
pump will be alternately switched ON and
OFF for 30 s respectively over a period of
20 min. For a certain period, the diverter
valve is alternately set towards heating and
DHW heating, The burner is switched OFF
during the venting programme.
The venting program is activated
via code “2F:1” page 49. The program
is automatically disabled after 20 min
and coding address “2F” is set to “0”.
Filling with the control unit switched ON
5350 485 GB 06/2007
If the system is to be filled with the control
unit switched ON, the diverter valve will be
moved to its central position via code
“2F:2” and the pump will be started.
The burner shuts down if this function is
enabled via coding address “2F”. The
program is automatically disabled after 20
min and coding address “2F” is set to “0”.
55
Checking diaphragm expansion vessel and system pressure
Note
Carry out this test on a cold system.
1. Drain the system, or close the cap valve
on the expansion vessel and reduce
the pressure, until the pressure gauge
indicates “0”.
2. If the inlet pressure of the expansion
vessel is lower than the pre-charge
pressure of 6.75 bar, top up until the
inlet pressure is raised to 6.75 bar.
3. Top up your heating system with water
and vent until the filling pressure of a
cooled system is 0.1 to 0.2 bar higher
than the inlet pressure of the diaphragm
expansion vessel.
Permiss. operating pressure: 2.5 bar
Checking the gas type
The boiler is equipped with an electronic
combustion control unit which adjusts the
burner for optimum combustion
in accordance with the prevailing gas
quality.
• The boiler can be operated with natural
gas in the Wobbe index range 10.0 to
16.1 kWh/m3 (36.0 to 58/0 MJ/m3)
without conversion.
1. Determine the gas type and Wobbe
index (Wo) by asking your local mains
gas or LPG supplier.
2. Convert the burner for operation with
LPG (see overleaf).
3. Record the gas type in the benchmark
commissioning check list on page 71.
• Adjust the burner for operation with
LPG (see “Gas type conversion”
overleaf).
Gas type
56
Wobbe index range
kWh/m3
MJ/m3
Delivered condition
Natural gas E (G20)
12.0 to 16.1
43.2 to 58.0
After conversion
LPG P
20.3 to 21.3
72.9 to 76.8
5350 485 GB 06/2007
Wobbe index ranges
Gas supply
Gas type conversion (only for operation with LPG)
1. Set the adjusting screw A at the gas
train to “2”.
2. Switch On the system ON/OFF
3. Adjust the gas type in coding address
“82” (for a detailed description of the
individual steps, see Service
Instructions.
• Call up code 2 page 49
• In coding address “11” select
value “9”.
• In coding address “82” select
value “1” (operation with LPG)
• Set code “11” “9”
• Terminate code 2.
5350 485 GB 06/2007
4. Open the gas shut-off valve.
57
Gas supply
Checking the static and supply pressure
When installing, commissioning or servicing a gas appliance that incorporates a pre-mix
burner and zero-set governor, because it is not possible to measure an operating pressure
the engineer should first check that the gas supply is metered and ascertain whether it is
possible to measure the gas rate. If the gas input rate can be measured then the
requirements of GSIUR 26(9) can be met, including any specific requirements in manufacturer’s instructions.
If gas input rate cannot be measured then, to satisfy the intent of GSIUR 26(9), the engineer
shall measure the combustion quality of the appliance in accordance with BS 7967 or the
manufacturer’s instructions.
If the engineer does not have the required equipment and no alternative test is specified by
the manufacturer then the appliance shall be turned off and disconnected as an un-commissioned appliance until such time that equipment is available to undertake such tests.
Danger
CO build-up as a result of an incorrect combustion can have serious health
implications.
Carry out a CO test prior to and after work on gas equipment.
Operation with Nat Gas or LPG
1. Close the gas shut-off valve.
2. Undo the screw inside connector “IN” A
on the gas train, but do not remove,
then connect the pressure gauge.
3. Open the gas shut-off valve.
4. Measure the static pressure and record
it in the service report.
5. Start the boiler.
Note
58
5350 485 GB 06/2007
During commissioning, the boiler can
enter a fault state because of airlocks in
the gas pipe. After approx. 5 s, press
(RESET) to restart the boiler.
Gas supply
6. Check the working pressure.
Set values:
• natural gas 20 mbar
• LPG 37 mbar
Note
Use suitable test equipment with a
resolution of at least 0.1 mbar to measure
the supply pressure.
7. Record the actual value in the service
report. Take the actions shown in the
following table.
8. Shut down the boiler, close the gas
shut-off valve, remove the pressure
gauge and close test port A with the
screw.
9.
Danger
Gas escaping from the test
port leads to a risk of
explosion, Check for
soundness.
5350 485 GB 06/2007
Open the gas shut-off valve, start the
boiler and check for soundness at
test port A .
Working
pressure for natural gas
Working
pressure for LPG
Measures
below 17.4 mbar
below 37 mbar
Switch off boiler. Notify your mains
gas or LPG supplier.
17.4 to 25 mbar
37 to 57.5
Continue boiler operation.
in excess of 25 mbar
in excess of
57.5 mbar
Switch off boiler. Notify your mains
gas or LPG supplier.
59
Setting the maximum CH output
Note
You can limit the maximum output for heating operation. The limit is set via the modulation
range. The max. adjustable heating output is limited by the boiler coding card.
4. Confirm the set value with
2. Press
and
simultaneously
until a value appears and flashes (e.g.
“85”) and
appears. In the delivered
condition, this value represents 100% of
rated output. On weather compensated
control units, the display additionally
shows “Max Heating Output”.
5. Record the settings for maximum output
on the additional type plate included
with the “technical documentation”. Affix
the type plate next to the original type
plate on top of the boiler.
_
3. With + /
select the required
value in % of rated output as maximum
output.
Note
OK
The output can also be limited for DHW
heating. For this, change coding address
“6F” in code 2.
5350 485 GB 06/2007
60
1. Start the boiler
Flue system check
Checking the balanced flue system for soundness (annular gap check)
For balanced flue systems tested together
with the wall mounted gas fired boiler, we
recommend that a simple soundness test
is carried out during the commissioning.
For this, it would be sufficient to check the
CO2 or O2 concentration in the combustion
air at the annular gap of the balanced flue
pipe.
The flue pipe is deemed to be sound if
the CO2 concentration in the combustion
air is no higher than 0.2% or the O2
concentration is at least 20.6%. If actual
CO2 values are higher or O2 values are
lower, then pressure test the flue pipe
with a static pressure of 200 Pa.
Check the gas installation for soundness
Danger
Escaping gas leads to a risk of explosions.
Check gas equipment for soundness.
Flue gas emission test
5350 485 GB 06/2007
The Vitodens 200-W is fitted with a
Lambda-Pro control. The electronic
combustion control unit automatically
ensures an optimum combustion. Therefore
during commissioning it is not required to
check or adjust the air/gas mixing ratio.
During the initial start up and during normal
operation the boiler will automatically
calibrate itself to the local gas quality.
This ensures a high operation safety and
constant high boiler efficiency.
If the boiler is not working correctly,
check the CO2 values are in-line with the
following ranges (maximum and minium
heat output).
Natural Gas:
7.7 to 9.2%
LPG:
9.3 to 10.9%
For all gas types the O2 (oxygen) content
must be between 4.4% and 6.9%.
61
Combustion
If the actual CO2 or O2 values lie outside their respective ranges, proceed with
the following steps:
•
Check the balanced flue system for soundness, see page 66
•
Check the ionisation electrode and connecting lead, see service instructions.
•
Check the parameters of the combustion control unit, see service instructions.
Note
During commissioning, the combustion control unit carries out an automatic calibration. This
may lead to CO emissions in excess of 1000 ppm for a short time.
1. Connect a flue gas analyser at test port
A (on the boiler flue outlet).
2. Open the gas shut-off valve, start the
boiler and create a heat demand.
3. Adjust the lower output of the
constant temperature control unit:
+
OK
press simultaneously:
“1” is shown
4. Check the CO2 content. Should the
actual value deviate from the above
ranges by more than 1%, implement
steps above.
5. Enter actual values into the service
report.
6. Adjust the upper output on the
constant temperature control unit:
7. Check the CO2 content. Should the
actual value deviate from the above
ranges by more than 1%, implement
steps above.
62
5350 485 GB 06/2007
+ press: “2” is shown
Heating system start-up
Check the heating system pressure on
the pressure gauge (A). The system
pressure is too low if the needle indicates
below 0.8 bar.
Switch ON the mains power supply e.g.
at a separate fuse or a mains electrical
isolator.
Switch ON the ON/OFF switch
( (C);
standby mode is then indicated by the
green indicator (ON indicator); after a
short time the boiler temperature will be
displayed. Your heating system and, if
installed, your remote control unit are
now ready for use.
Note
5350 485 GB 06/2007
The circulation pumps are briefly started
every 24 hours for a short time to prevent
pump damage.
63
Starting a heating circuit and DHW heating/loading
Press
Central heating and DHW
• Central heating active
• DHW will be loaded (subject to a DHW cylinder or combination boiler being installed)
• Frost protection for the boiler and the DHW cylinder is active
Starting DHW only
Press
Only DHW:
• No Central heating
• DHW will be loaded (subject to a DHW cylinder or combination boiler being installed)
• Frost protection for the boiler and the DHW cylinder is active
Shutting down a heating circuit and DHW heating/loading
Press
Standby mode…
64
Note
The circulation pump will be started for
short periods at regular intervals to prevent
it from seizing up. These intervals can be
modified by your heating contractor.
5350 485 GB 06/2007
• No Central heating
• NO DHW heating
• Boiler and DHW cylinder frost
protection.
Switching the comfort function ON and OFF
Only for use with the combination boiler. The boiler is maintained at a standby temperature
when the comfort function is switched ON. Hot water will then be available instantly.
The comfort function can be switched OFF
with
. To save energy the comfort
funtion can be timed.
Note
If the comfort function is switched off the
boiler will still provide instantaneous DHW.
Setting the DHW temperature
Press the following keys:
1.
for “Set DHW temperature“; the
current temperature will flash
50°C
2. +
_
3.
to confirm; the temperature no
longer flashes and is now saved.
OK
to set the required
temperature.
Room temperature
In addition to the boiler control unit, a separate room temperature controller (e.g. Vitotrol
100) must be installed in one on the living rooms if the heating system is to be maintained
at the required room temperature.
5350 485 GB 06/2007
Make adjustments using the appropriate
room thermostat operating instructions.
Please also note:
• The heating programme selector of the
boiler control unit must be set to
• Set the boiler water temperature
high enough
• There should not be a thermostatic
radiator valve in the room, where the
room thermostat is installed.
65
Adjusting the boiler water temperature
If a remote control unit is connected:
Set the room temperature on the remote control unit.
Set the boiler water temperature high enough to be able to achieve the required room
temperature.
Press the following keys:
1.
for “Set boiler water
temperature“; the current
temperature will flash
2. +
_
3.
to confirm; the temperature no
longer flashes and is now saved.
OK
to set the required
temperature.
66
5350 485 GB 06/2007
60°C
Scanning information
Subject to connected components, you can scan current temperatures and operating
conditions.
Press the following keys:
1.
i
For boiler water temperature
3
65
_ for additional scans
3.
to end scanning
OK
Display indication
Explanation
Notes
1
20ºC
Outside temperature
Display only if an outside
temperature sensor is connected
3
65ºC
Boiler water
temperature
-
5
50ºC
DHW temperature
Display only if a DHW cylinder
is installed.
5
45ºC
DHW temperature
for solar operation
Display only if a solar heating
system is connected.
6
70ºC
Collector temperature
Display only if a solar heating
system is connected.
Burner hours run
The hours run can be reset to 0
by pressing
. The hours run
displayed are only approximate
values.
Burner starts
The number of burner starts can
be reset to 0 by pressing
Fuel consumption
The fuel consumption can be
reset to 0 by pressing
Hours run - solar
circuit pump
The hours run can to reset to 0
on the Vitosolic solar control unit.
The hours run displayed are only
approximate values.
003572 h
030417
030417
000850 h
5350 485 GB 06/2007
°C
2. +
67
Function sequence and possible faults
Display screen
Measures
No
Control unit issues
heat demand
Increase set value
and ensure heat is
drawn off
Yes
No
Fan starts
after approx. 51 s
Fault F9
Check the fan,
fan connecting
cables, power at
the fan and fan
control
Yes
No
Ignition
Fault F4
Check the ignition
module (control
voltage 230V
across plugs
“X2.1” and “X2.2”
Fault F4
Check the gas
train (control
voltage 230 V);
check the gas
supply pressure
Yes
No
Gas train opens
Yes
68
Fault F4
Check the
ionisation electrode
adjustment and the
gas pipe for airlocks
5350 485 GB 06/2007
No
Ionisation current
symbol displayed
Function sequence and possible faults (cont.)
Yes
No
Burner in operation
Stops below the
set boiler water
temperature and
restarts immediately
Check the flue gas
system for
soundness (flue
gas recirculation),
check the gas flow
pressure
Fault Eb
Check the
connecting cable
and the ionisation
electrode. Check
the flue gas
system (flue gas
recirculation)
Yes
Automatic
calibration of the
combustion control
unit
No
5350 485 GB 06/2007
For further details regarding faults see the service instructions.
69
Fitting the outer case
Note
70
5350 485 GB 06/2007
Always insert the locking screws before commencing operation.
5350 485 GB 06/2007
71
Declaration of conformity
Declaration of conformity for the Vitodens 200-W
We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, declare as sole responsible body,
that the product Vitodens 200-W complies with the following standards:
EN
EN
EN
EN
EN
483
625
677
13 203
50 165
EN
EN
EN
EN
55
60
61
61
014
335
000-3-2
000-3-3
This product is designated with CE-0085 in accordance with the following Directives:
90/396/EEC
89/336/EEC
73/23/EEC
92/42/EEC
This product meets the requirements of the Efficiency Directive (92/42/EEC) for condensing
boilers.
The product characteristics determined as system values for the product Vitodens 200-W
as part of EC type testing according to the Efficiency Directive (see specification table)
can be utilised to assess the energy consumption of heating and ventilation equipment to
DIN V 4701-10 which is specified by the EnEV (Germany).
Allendorf, 1 December 2006
Viessmann Werke GmbH&Co KG
5350 485 GB 06/2007
pp. Manfred Sommer
73
Manufacturer’s certificate according to the 1st BlmSchV
(Germany)
We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm that the product
Vitodens 200-W complies with the NOx limits specified by the BlmSchV paragraph 7 (2)
(Germany).
Allendorf, 1 December 2006
Viessmann Werke GmbH&Co KG
74
5350 485 GB 06/2007
pp. Manfred Sommer
5350 485 GB 06/2007
75
Gas Fired condensing combi boiler
Type WB2B
6.5 to 26.0 kW
from serial no
7248 825 7 00001…
6.5 to 26.0 kW
from serial no
7248 824 7 0001…
8.8 to 30.0 kW
from serial no
7248 827 0001…
8.8 to 30.0 kW
from serial no
7248 826 7 00001…
8.8 to 35.0 kW
from serial no
7248 829 7 00001…
8.8 to 35.0 kW
from serial no
7248 828 7 00001…
Viessmann Werke GmbH&Co KG
D-35107 Allendorf
Tel: +49 6452 70-0
Fax: +49 6452 70-2780
www.viessmann.com
Viessmann Limited
Hortonwood 30, Telford, TF1 7YP, GB
Tel: +44 (0)1952 675000
Fax: +44 (0)1952 675040
www.viessmann.co.uk
5350 485 GB 06/2007 Subject to technical modifications
Gas Fired condensing boiler
Type WB2B
4.8 to 19.0 kW
from serial no
7248 823 7 0001…
Printed on environmentally friendly,
chlorine-free bleached paper
Applicability
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