Viessmann Vitodens 100 WB1A Guide rapide
VIESMANN
Installation and service
instructions
for heating engineers
Vitodens 100
Type WB1A
Gas fired wall mounted condensing boiler
Natural gas version
See applicability on the last page
VITODENS 100
5862 670 GB 2/2005 Please keep safe
Please follow these safety instructions closely to prevent accidents and
material losses.
Safety instructions explained
Danger
This symbol warns against the
risk of injury.
!Important information
This symbol warns against the
risk of material losses and
environmental pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are exclusively
designed for qualified personnel.
&Work on gas equipment must only
be carried out by a CORGI regis-
tered gas fitter.
&Electrical work must be compliant
with Part P of the building regula-
tions
&The system must be commissioned
by the system installer or a qualified
person authorised by the installer.
If you notice the smell of gas
Danger
Escaping gas can cause explo-
sionswhichmayleadtoser-
ious injury.
&Do not smoke. Prevent
naked flames and sparks.
Never operate light switches
or those of electrical equip-
ment.
&Open windows and doors.
&Close the gas shut-off valve.
&Heating system shutdown
&Remove all personnel from
the danger zone.
&Observe the safety regula-
tions of your local gas sup-
plier, found on the gas meter.
&Notify your heating contrac-
tor from outside the building.
If you smell flue gas
Danger
Flue gas may lead to life-threa-
tening poisoning.
&Heating system shutdown
&Ventilate the boiler room.
&Closealldoorsleadingtothe
living space.
&Do not operate electrical
switches.
Safety instructions
2
Safety instructions
5862 670 GB
Workingontheheatingsystem
&Isolate the system from the mains
electric power supply, e.g. by
removingaseparatefuseorby
means of a mains electrical isolator,
and check that it is no longer 'live'.
&Isolate the gas supply and safe-
guard against unauthorised reopen-
ing.
Repair work
!Important information
Repairing components which
fulfil a safety function can com-
promise the safe operation of
your heating system.
Replace faulty components
only with original Viessmann
spare parts.
Ancillary components, spare and
wearing parts
!Important information
Spare and wearing parts which
have not been tested together
with the heating system can
compromise its function. Instal-
ling non-authorised compo-
nents and non-approved
modifications/conversion can
compromise safety and may
infringe our warranty condi-
tions.
For replacements, use only ori-
ginal spare parts from
Viessmann or those which are
approved by Viessmann.
Safety instructions (cont.)
3
Safety instructions
5862 670 GB
Installation instructions
Preparing for installation
Product information .................................................................................... 5
General Information .................................................................................... 5
Technical Specification ............................................................................... 6
Installation Requirements ........................................................................... 15
Preparations for boiler installation ............................................................... 29
Installation
Installing the boiler and making all connections ........................................... 32
Flue outlet .................................................................................................. 39
Electrical connections................................................................................. 41
Commissioning and testing ......................................................................... 47
Service instructions
Initial start-up, inspection, maintenance ................................................. 58
Service Instructions
Routine Servicing Instructions .................................................................... 58
Troubleshooting
Fault finding................................................................................................ 69
Repairs ...................................................................................................... 74
Designs
Connection and wiring diagrams –combi boiler .......................................... 82
Connection and wiring diagram - system boiler............................................ 84
Parts lists .................................................................................................. 86
Certificates
Declaration of conformity ............................................................................ 92
Keyword index .......................................................................................... 93
Index
4
Index
5862 670 GB
Vitodens 100, Type WB1A
Set up for operation with natural gas.
General Information
Appliance description
The Vitodens 100 is a fully automatic,
wall hung, fan assisted balanced flue
condensing boiler for use with Natural
Gas (G20).
The Vitodens 100 is fully modulating
and provides central heating outputs
between 8.0 kW (27,300Btu/h) and
24.0 kW (84,300Btu/h)/30.0 kW
(93,550 Btu/h) and instantaneous hot
water at outputs between 8.0 kW
(27,300 Btu/h) and 24.0 kW
(84,300Btu/h)/30.0 kW (93,550 Btu/
h).
The appliance always gives priority to
domestic hot water supply.
The appliance is designed for use
with sealed primary water systems
(only) and incorporates a circulation
pump, diverter valve assembly, flow
switch (combi boiler only), DHW plate
heat exchanger (combi boiler only),
safety valve and CH expansion ves-
sel. A separate DHW expansion ves-
sel is not required.
Internal frost protection and an elec-
tronic control unit is fitted as standard
equipment and the boiler may be used
with any suitable room thermostat and
/ or time clock in addition to the
optional controls available from
Viessmann.
Certification details
The Vitodens 100 is certified to com-
ply with the requirements of prEN 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).
The appliance classification is either
C13x or C33x depending upon whether
a horizontal or vertical flue terminal is
used.
Product information
5
Preparing for installation
5862 670 GB
Installation
General Specifications and Performance Data
Rated output range
TV/TR50/30 °C kW 8 to 24 8 to 30
TV/TR80/60 °C kW 7.3 to 21.8 7.3 to 27.3
Rated output range kW 7.4 to 22.3 7.4 to 28.0
Maximum gas rate m
3
/h 2.50 3.14
Combi boiler:
Design domestic hot water performance
(specific rate)
l/min 7.5 12.8
Domestic hot water temperature range °C 38 - 57 38 - 57
Maximum mains water inlet pressure bar 10 10
Minimum mains water inlet pressure for
operation
bar 1 1
Total water capacity (Including expansion
Vessel)
l3.53.5
Minimum CH system pressure (static
head) –Cold
bar 1.0 1.0
Maximum CH system pressure (static
head) –Hot
bar 3.0 3.0
Maximum CH flow temperature °C 80 80
Integral expansion vessel capacity l 8 8
Integral expansion vessel pre-charge
pressure
bar 0.75 0.75
Lift weight
- Combi boiler kg 43 43
-Systemboiler kg 42 42
Total weight inc. packaging
- Combi boiler kg 48 48
-Systemboiler kg 47 47
Electrical supply 230 V, 50Hz 230 V, 50Hz
Internal fuse A 4 4
Maximum power consumption W 150 150
Flue outlet (clearance 7): mm 60 60
Ventilation pipe (outside 7) mm 100 100
Product ID _-0085 BQ 0017
Technical Specification
6
Preparing for installation
5862 670 GB
Overall Appliance Dimensions
Combi boiler
ACondensate drain: Plastic pipe
722 mm
BHeating flow: 722 mm
CDHW: 715 mm
DGas connection: Rp ½
ECold water: 715 mm
FHeating return: 722 mm
GSafety valve drain: 715 mm
Technical Specification (cont.)
7
Preparing for installation
5862 670 GB
Installation
System boiler
ACondensate drain: Plastic pipe
722 mm
BHeating flow: 722 mm
CDHW cylinder flow: 722 mm
DGas connection: Rp ½
EDHW return: 722 mm
FHeating return: 722 mm
GSafety valve drain: 715 mm
Technical Specification (cont.)
8
Preparing for installation
5862 670 GB
Minimum installation clearances
The following minimum clearances (mm) must be maintained for installing and
servicing the appliance.
AFront (behind removable panel) BFront (for service)
Flue System Specifications
Concentric Horizontal Flue System
Standard horizontal flue kit: The appli-
ance is supplied complete with a stan-
dard concentric horizontal balanced
flue terminal assembly, suitable for
flue lengths of up to 620 mm from the
centre of the flue outlet, which
equates to wall thicknesses of up to
480 mm for rear flues and 463 mm for
side flues, including minimum clear-
ances.
Extensionductscanbeusedto
increase the straight flue length up to
6 m and include one 87° elbow.
Technical Specification (cont.)
9
Preparing for installation
5862 670 GB
Installation
An extra 87° elbow can be used but
this reduces the maximum permissi-
ble length by 1 m . An extra 45° elbow
can be used but this reduces the max-
imum permissible length by 0.5 m .
ACombined length of flue outlet/
ventilation pipe max 6m.
BFlue outlet/ventilation pipe (can
be shortened as necessary)
Concentric Vertical Flue System
Theverticalfluekit(optionalextra)
with extensions may be used for up
to10 m applications.
An extra 87° elbow can be used but
this reduces the maximum permissi-
ble length by 1 m. An extra 45° elbow
can be used but this reduces the max-
imum permissible length by 0.5 m.
Technical Specification (cont.)
10
Preparing for installation
5862 670 GB
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1
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