Viessmann Vitopend 100-W Quick guide

Installation and service
instructions
for contractors
VIESMANN
Vitopend 100-W
Type WH1D, 10.5 to 24 kW and 13.5 to 30 kW
Gas system and combi boilers
For open flue operation
Natural gas and LPG version
For applicability, see the last page
VITOPEND 100-W
5441 514 UAE 9/2012 Please keep safe.

2
Please follow these safety instructions closely to prevent accidents and mate-
rial losses.
Safety instructions explained
Danger
This symbol warns against the
risk of injury.
!Please note
This symbol warns against the
risk of material losses and envi-
ronmental pollution.
Note
Details identified by the word "Note" con-
tain additional information.
Target group
These instructions are exclusively
designed for qualified personnel.
■ Work on gas equipment must only be
carried out by a qualified gas fitter.
■ Work on electrical equipment must
only be carried out by a qualified elec-
trician.
■ The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations
Observe the following when working on
this system
■ all legal instructions regarding the pre-
vention of accidents,
■ all legal instructions regarding envi-
ronmental protection,
■ the Code of Practice of relevant trade
associations.
■ all current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards.
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may lead to serious
injury.
■ Do not smoke. Prevent naked
flames and sparks. Never
switch lights or electrical appli-
ances ON or OFF.
■ Close the gas shut-off valve.
■ Open windows and doors.
■ Remove all people from the
danger zone.
■ Notify your gas or electricity
supplier from outside the build-
ing.
■ Shut off the electricity supply to
the building from a safe place
(outside the building).
If you smell flue gas
Danger
Flue gas can lead to life-threat-
ening poisoning.
■ Shut down the heating system.
■ Ventilate the boiler room.
■ Close all doors in the living
space.
Safety instructions
Safety instructions
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Working on the system
■ When using gas as fuel, also close the
main gas shut-off valve and safeguard
against unauthorised reopening.
■ Isolate the system from the power sup-
ply and check that it is no longer 'live',
e.g. by removing a separate fuse or by
means of a main isolator.
■ Safeguard the system against unau-
thorised reconnection.
!Please note
Electronic modules can be dam-
aged by electrostatic dis-
charges.
Touch earthed objects, such as
heating or water pipes, to dis-
charge static loads.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise
the safe operation of your heating
system.
Replace faulty components only
with original Viessmann spare
parts.
Ancillary components, spare and
wearing parts
!Please note
Spare and wearing parts that
have not been tested together
with the heating system can com-
promise its function. Installing
non-authorised components and
non-approved modifications or
conversions can compromise
safety and may invalidate our
warranty.
For replacements, use only orig-
inal spare parts supplied or
approved by Viessmann.
Safety instructions
Safety instructions (cont.)
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Installation instructions
Preparing for installation
Product information.............................................................................................. 5
Preparing for installation....................................................................................... 5
Installation sequence
Installing the boiler and making all connections................................................... 6
Flue gas connection............................................................................................. 8
Gas connection.................................................................................................... 8
Opening the control unit casing............................................................................ 9
Electrical connections........................................................................................... 10
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 13
Further details regarding the individual steps....................................................... 14
Troubleshooting
Function sequence and possible faults................................................................ 32
Fault messages on the display............................................................................. 33
Repairs................................................................................................................. 35
Function description
Control and display elements............................................................................... 41
Heating mode....................................................................................................... 41
DHW heating........................................................................................................ 41
Extension for external connections (accessory)................................................... 42
Designs
Connection and wiring diagram............................................................................ 43
Parts lists............................................................................................................ 45
Commissioning/service reports........................................................................ 54
Specification....................................................................................................... 55
Certificates
Declaration of Conformity for the Vitopend 100-W............................................... 57
Keyword index.................................................................................................... 58
Index
Index
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Vitopend 100-W, WH1D
Set up for operation with natural gas E.
May be converted to alternative gas types with a conversion kit.
The Vitopend 100-W should generally only be delivered to those countries specified
on the type plate. For deliveries to alternative countries, an approved contractor must
arrange individual approval on his own initiative and in accordance with the law of
the country in question.
Preparing for installation
Cold water installation
ACold water connection, boiler
BDrain
CVisible discharge pipe outlet point
DSafety valve
ENon-return valve
FShut-off valve
GCold water
HSafety assembly
Safety assembly H to DIN 1988 is
required, if the mains water supply pres-
sure exceeds 10 bar, and no DHW pres-
sure reducing valve is installed (to
DIN 4753).
Only use a non-return valve or a com-
bined shut-off and non-return valve in
conjunction with a safety valve.
If a safety valve is installed, remove the
toggle from the cold water shut-off valve
of the boiler, preventing the valve being
closed manually.
Anti-water hammer device
We recommend the installation of an
anti-water hammer device near pressure
shock generators if the pipework to
which the boiler is connected comprises
taps where water hammer may be cre-
ated (e.g. pressure washers, washing
machines or dishwashers).
Preparing for installation
Product information
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Installation

6
!Please note
To prevent equipment damage,
install all pipework free of load and torque stresses.
Note
Prepare the gas, water and power connections using the installation template A
supplied.
≥ 350
Ø10
AInstallation template
Installation sequence
Installing the boiler and making all connections
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2.
1.
3.
2x
Installation sequence
Installing the boiler and making all connections (cont.)
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Installation

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ATest port Ø 10 mm
B2 x flue pipe diameter
1. Connect the flue outlet with the short-
est possible run of flue pipe to the
chimney. Avoid sharp bends.
Note
The cross-sections of the flue pipe
and the chimney must match that of
the draught hood connector. Maintain
a distance of at least 100 mm
between the flue pipe and combusti-
ble materials.
2. Create a test port in the flue pipe (see
diagram).
3. Thermally insulate the flue pipe (if
required).
Gas connection
A
1. Fix gas shut-off valve to gas connec-
tion A.
Torque 30 ±2 Nm.
Conversion to other gas
types:
Conversion kit installation
instructions
2. Carry out a tightness test.
Note
For the tightness test, use only suita-
ble and approved leak detecting
agents (EN 14291) and devices.
Leak detecting agents with unsuita-
ble constituents (e.g. nitrides, sul-
phides) can lead to material damage.
Remove residues of the leak detect-
ing agent after testing.
Installation sequence
Flue gas connection
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!Please note
Excessive test pressure may
damage the boiler and the gas
valve.
Max. test pressure 150 mbar.
Where higher pressure is
required for tightness tests,
separate the boiler and the
gas valves from the gas sup-
ply pipe (undo the fitting).
3. Vent the gas line.
Opening the control unit casing
4x
1.
2x
2.
3.
Installation sequence
Gas connection (cont.)
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Installation

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?
5
PUMP FAN
LN1 LN
GAS
E
D ABC
AFuse 2.5 A (slow)
BPower supply
CIonisation cable
DPotentiometer
EAccessories power supply (remove
jumper when connecting)
Low voltage plug
%Cylinder temperature sensor (if sup-
plied)
Plug 230 V~
sÖ Circulation pump (internal connec-
tion)
dG Gas solenoid valve (internal con-
nection)
a-Ö Interlocking extractor fans
Connection via external extension
H3 (accessory)
Power supply (on-site)
Danger
Incorrect core allocation can
result in serious injury and dam-
age to the appliance.
Never interchange cores "L" and
"N".
Installation sequence
Electrical connections
5441 514 UAE