VITOPEND 100-W - Viessmann

VITOPEND 100-W
Gas fired central heating/combi boilers
with modulating atmospheric burner
for open or balanced flue operation
Rated output range: 10.5 to 30 kW

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Are you looking for a modern wall
mounted gas fired boiler with a
particularly good price/performance
ratio – without wishing to sacrifice
quality? Then the Vitopend 100-W is
just for you. With various output
ratings and versions, you’ll find a
suitable model for any application.
Meets the requirements for
low temperature classification
Complete range of wall mounted
boilers from Viessmann
Gas fired central heating boilers
■ for open or balanced flue
operation:
10.5 to 24 kW
Gas fired combi boilers
■ for open or balanced flue
operation:
10.5 to 24 kW and 13 to 30 kW

725
340 (24 kW)
360 (30 kW)
One of the smallest and quietest
wall mounted boilers in this product
sector
Its compact dimensions and minimum
operating noise enable an easy
integration into the living space.
Easy installation
400 (24 kW)
450 (30 kW)
Particularly easy to install through
low weight and multi-connect
system. No service clearance
required on the boiler side.
Efficient, durable,
attractively priced
Low-temperature
EU-Efficiency Directive 92/42
Energy-saving and environmentally
responsible
Classified as a low temperature
boiler in accordance with the EU
Efficiency Directive 92/42.
Easy to service and maintain
AquaBloc hydraulic unit with multiconnect
system: all components with
maintenance potential are easily
accessible and replaceable from the
front.
VITOPEND 100-W
Stars
to EN 13203
14 litres/min
(30 kW)
High DHW convenience
High constant output (14 litres/min at
30 kW) and a highly consistent outlet
temperature through an electronic
temperature controller.
Reliable and durable – Made in
Germany
As a volume producer with many
years' experience manufacturing
wall mounted boilers, we know what
matters. Product quality and
performance are never compromised,
not even with the attractively priced
Vitopend 100-W.
Viessmann wall mounted boilers are
not only renowned for innovative
technology and performance, but
also for their particularly impressive
reliability and durability.
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Control unit/accessories
Combined
thermometer/
pressure
gauge
4
Operating displays
• • Burner ON
• • Heat demand
Remote control unit
Vitotrol 100,
type RT
Boiler in standby
• • DHW demand
Service displays
•
• Illuminated
Rotary selector
for the DHW
temperature
Rotary selector for
the heating water
temperature
Upper rated output
Lower rated output
Flashing Flashes alternately
Simply good:
control unit operation
ON/OFF and reset switch
LED status and diagnostic indicators
– Burner operation ON indicator
– ON indicator
– Fault indicator
Control unit
with integral
diagnostic system
Remote control unit
Vitotrol 100,
type UTA
Remote control unit
Vitotrol 100,
type UTD
Simple operation
The user-friendly rotary selectors
enable a quick adjustment of the
heating water and DHW temperature.
The system pressure and flow
temperature are displayed by a
combination thermometer/pressure
gauge.
The Vitopend 100-W is equipped with
an integral diagnostic system that
enables the recognition of the most
common operating and service
conditions via an LED indication
pattern.
Control unit functions
The electronic boiler control unit for
constant boiler water temperature
operation is integrated into the
Vitopend 100-W. Also integrated are
frost protection and a diagnostic
system.
Remote control of your heating
system from your living space
Three remote control units are
available for the Vitopend 100-W.
■ Vitotrol 100, type RT
room thermostat for system
temperature control from the lead
room
■ Vitotrol 100, type UTA
clock thermostat with operating
mode selection and integral time
switch (analog)
■ Vitotrol 100, type UTD
digital clock thermostat with large
LCD

Installation parts
Various sets with installation
components are available for the
connection to the boiler on the water
and gas side:
– with individual fittings for
comfortable working during
maintenance and service
– with pipe bends for minimum
space requirement during
installation.
For an attractive visual finish to the
boiler installation, a fitting cover of
the same design as the boiler is
available as an accessory.
Installation aid
The installation aid enables all
connections to be prepared and
pressure-tested during the building
phase – the Vitopend 100-W only
needs to be hung into place later.
Part of the standard delivery is a
fitting cover of the same design as
the boiler to optically finish the
installation.
Solar kit
The solar kit for the Vitopend 100-W
enables a rapid, convenient and
space-saving connection to a central
solar heating system for DHW
heating. Upon demand, DHW is
immediately pre-heated by solar
energy via an integral heat
exchanger. This ensures an optimum
implementation of the legal [in
Germany] requirements for the
use of solar heating systems.
A perfect match
Hydraulic accessories
Mounting bracket
with diagonal brace
Solar kit
Mounting
panel with
fittings and
pipe bends
(here gas fired
combi boiler)
Fitting cover
Wall mounting bracket
Individual fittings
(here gas fired combi boiler)
Fitting cover
Accessories for the
Vitopend 100-W –
individual fittings
Accessories for the
Vitopend 100-W –
Installation aid
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Hydraulic accessories
1 Pre-assembly with the
installation template
6
Easy to install and service
2 Boiler installation
4 Electrical connection 4 Commissioning
Installation and commissioning
1. Pre-assembly with the installation
template
2. Boiler installation
3. Electrical connection
4. Commissioning
The Vitopend 100-W can be installed
and commissioned in only a few
steps.
The wall mounted gas fired Vitopend
100-W was designed especially with
easy installation and time-efficient
service in mind.
Check it out for yourself.
Accessories for the gas fired central
heating boiler
The connection of the Viessmann
DHW cylinders, below, with 120 or
150 litres capacity is made extremely
easy with the available connection
sets. Suitable connection sets are
also offered for DHW cylinders,
adjacent.
Connection set for the
Vitocell 100-W DHW
cylinder below with
interconnecting pipes

Combi boiler
for balanced flue operation
Combi boiler
for open flue operation
Cutaway views of our products
Vitopend 100-W
from 10.5 to 30 kW
Quiet flue
gas fan
Effective
heat exchanger
Diaphragm expansion vessel
High combustion chamber
Modulating,
atmospheric burner
Plate-type heat exchanger
AquaBloc hydraulic unit
with multi-connect system
Room temperaturedependent
control unit
Effective
heat exchanger
Diaphragm expansion vessel
High combustion chamber
Modulating,
atmospheric burner
Plate-type heat exchanger
AquaBloc hydraulic unit
with multi-connect system
Room temperaturedependent
control unit
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Technology
Flue connections
Dimensions
A Area for power supply cables
B Compulsory in conjunction with DHW cylinders below, otherwise
recommendation only
Circulation pump
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C Top edge – finished floor
D Fitting cover
E Solar kit with fitting cover
A Residual head for 30 kW version
B Residual head for 24 kW version
Type VICUPS – 40/60
24 kW 30 kW
Rated voltage V~ 230 230
Power consumption W 78 82
Minimum system inlet pressure
Water temperature: < 85 °C
Minimum inlet pressure: 0.8 bar

Flue/ventilation air systems for balanced flue operation (aluminium)
& Install a condensate trap in the balanced flue and drain off the
condensate.
& Deductions from the max. straight pipe length on account of
components:
Balanced flue bend 45° 0.5 m
Balanced flue bend 87° 1.0 m
Roof outlet 1 m
External wall terminal 1 m
External wall terminal
Vertical sloping or flat roof outlet
Further balanced flue components
Ø 60/100 mm Part no.
Balanced flue pipe
1 m long (trim to size) 7194 841
0.5 m long (trim to size) 7194 842
Balanced flue bend
90° 7194 836
45° (2 no.) 7194 837
Balanced flue inspection piece, straight 7194 833
Balanced flue condensate trap 7197 769
Drain outlet kit 7179 307
& Vertical sloping or flat roof outlet
Integrate the flat roof collar into the roof skin according to the
flat roof guidelines.
Push the roof outlet into the roof from above and position it on
the flat roof collar.
& External wall terminal
Install an inspection aperture in the balanced flue for checking
and cleaning the flue.
Route the connecting pipe with a gradient of at least 3º.
Note
Technology
For further balanced flue systems, see the separate datasheet
"Flue gas systems"
Ø 80/80 mm Part no.
Balanced flue pipe
1 m long (trim to size) 7198 580
0.5 m long (trim to size) 7198 581
Balanced flue bend
90° 7198 578
45° (2 no.) 7198 579
Balanced flue condensate trap 7198 577
Drain outlet kit 7179 307
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Technology
Specification
Gas fired central heating and combi boilers
Rated output range for central heating/DHW heating kW 10.5-24 13-30
Rated thermal load kW 11.7-26.7 14.5-33.3
Product ID CE-0085 BQ 0447 CE-0085 BQ 0447
Efficiency
at full load (100 %) % 89.9 90.0
at partial load (30 %) % 89.7 89.6
Energy efficiency in accordance with 92/42 EEC low temperature low temperature
NO x class 3 3
CO emissions at full load mg/kWh < 100 < 100
Gas supply pressure
Natural gas mbar 20 20
LPG mbar 37 37
Max. permissible gas supply pressure
Natural gas E/LL mbar 30 30
LPG mbar 57.5 57.5
Max. power consumption (incl. circulation pump)
open flue operation W 92 87
balanced flue operation W 128 136
Operating voltage V/Hz 230/50 230/50
Electrical protection IP X4D X4D
Max. adjustable boiler water temperature °C 76 76
Permissible operating pressure bar 0.8 to 3 0.8 to 3
Diaphragm expansion vessel
Capacity litres 6 10
Inlet pressure bar 0.8 0.8
Instantaneous water heater (only gas fired combi boilers)
Max. operating pressure bar 10 10
Continuous DHW output kW 24 30
Draw-off volume (ΔT = 30 K) litres/min 11.5 14.3
Outlet temperature (adjustable) °C 30-57 30-57
Required draught open flue operation Pa 1.5 1.5
Flue connection open flue operation Ø mm 130 150
Flue/ventilation air connection balanced flue mode
coaxial Ø mm 60/100 60/100
parallel Ø mm 80/80 80/80
Dimensions
Length mm 340 360
Width mm 400 450
Height mm 725 725
Height incl. fitting cover mm 796 796
Height incl. solar kit mm 915 —
Weight gas fired central heating/combi boiler
open flue operation kg 26/27 31
balanced flue operation kg 32/33 37
Flue gas loss at rated output % < 8 < 8
Radiation loss at rated output % 1.5 1.5
Standby heat loss % 0.7 0.7
Packing unit (boiler and hydraulic installation parts) no. 1 1
10

Design information
Installation for open flue operation
In open flue operation the boiler room is subject to the following
requirements:
& Avoid air contamination through halogenated hydrocarbons (e.
g. as in sprays, paints, solvents and cleaning agents); alternatively
operate in balanced flue operation
& Avoid very dusty conditions
& Avoid high levels of humidity
& Protect against frost and ensure good ventilation
& Provide a drain in the boiler room for the blow-off line of the
safety valve.
& The maximum ambient temperature of the system should not
exceed 35 °C.
& Install the Vitopend near the chimney stack/duct.
If these instructions are not observed, any consequential losses
directly related to any of these causes are excluded from our warranty.
Clearance for maintenance work
& 350 mm above the boiler for servicing the integral expansion
vessel.
& 700 mm in front of the boiler or DHW cylinder.
Electrical connections
& Connect the power supply (230 V/50 Hz) via a permanent connection.
& Protect the power supply cable with a fuse with a maximum ratingof16A.
& Required interlocking of extractor fans with open flue operation
only with the external extension H3 (accessory).
Allow all cables/leads to protrude approx. 1200 mm from the wall
in the area of the power supply cables.
Cables
NYM-J
3×1.5mm 2
– Power supply
cables (also for
accessories)
2-core min.
0.75 mm 2
– Vitotrol 100,
type UTD
NYM-O 3 x 1.5 mm 2
– Vitotrol 100 RT
– Vitotrol 100,
type UTA
Chemical anti-corrosion agents
Corrosion is generally avoided in properly installed and operated
sealed heating systems.
Never use chemical anti-corrosion agents.
Some manufacturers of plastic pipes recommend the use of chemical
additives. In such cases, only use anti-corrosion agents
offered by the heating trade, which have been approved for boilers
with DHW heating via single-walled heat exchangers (plate-type
heat exchangers or cylinders) (DIN 1988-4). Observe the
VDI guideline 2035 [or local regulations].
Heating circuits
For heating systems with plastic pipes, we recommend the use of
impermeable pipes to prevent the infusion of oxygen through the
pipe walls. Provide system separation in heating systems with
permeable plastic pipes (DIN 4726). We deliver a separate heat
exchanger for this.
Technology
Underfloor heating circuit
Install a temperature limiter into the flow of the underfloor heating
circuit to limit the maximum temperature. Observe DIN 18560-2.
The underfloor heating circuit should be connected via a mixer.
Low loss header
We recommend the use of a low loss header for systems with a
water content in excess of 10 litres/kW.
Safety valve/overflow valve (heating water side)
The hydraulic assembly of the Vitopend 100 includes a safety
valve and an overflow valve.
Opening pressure:
Safety valve 3 bar
Overflow valve ≈ 250 mbar
Water quality/frost protection
Unsuitable fill and top-up water increases the level of deposits
and corrosion and may lead to boiler damage.
& Thoroughly flush the entire heating system prior to filling it with
water.
& Only use fill water of potable quality.
& Soften fill water with a water hardness above 3.0 mol/m 3 ,e.g.
with the small softening system for heating water (see the
Viessmann Vitoset pricelist).
& An antifreeze additive suitable for heating systems can be
mixed with the fill water. The antifreeze manufacturer must verify
its suitability.
For further details, see the VdTÜV datasheet 1466.
Drinking water quality
From a water hardness of 3.58 mol/m 3 and higher, we recommend
the use of DHW cylinders or a water treatment system in the cold
water supply when heating DHW.
DHW connection of the gas fired combi boiler
The Vitopend is not suitable for use in conjunction with zinc-plated/galvanised
pipes.
Sizing the expansion vessel
A diaphragm expansion vessel is integrated into the Vitopend:
Inlet pressure 0.8 bar
Capacity 24 kW: 6 litres
30 kW: 10 litres
Vitopend content 1.2 litres
When making the water connections, check that the size of the
expansion vessel matches the system conditions.
Install a second expansion vessel on-site if the integral expansion
vessel is not large enough.
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Viessmann Group
Our comprehensive
product range sets
new standards
Energy sources:
Oil, gas, solar, wood
and environmental heat
Output range:
From 1.5 to 20 000 kW
Program steps:
100: Plus
200: Comfort
300: Excellence
System solutions:
Perfectly matching
products
Viessmann Werke
D-35107 Allendorf (Eder)
Tel.: +49 06452 70-0
Fax: +49 06452 70-2780
www.viessmann.com
For three generations, the Viessmann
family business has been committed
to generating heat conveniently,
economically, with environmental
responsibility and in accordance
with the prevailing demand. With
a number of outstanding product
developments and problem-solving
solutions, Viessmann has created
many milestones which have
frequently made them the technical
pacemaker and trendsetter for their
entire industry.
With the current comprehensive
range, Viessmann offers its customers
a stepped range of products with
output from 1.5 kW to 20 000 kW:
Freestanding and wall mounted
boilers for oil and gas, either employing
conventional or condensing
technology, plus systems using
renewable energy, such as heat
pumps, solar heating systems and
boilers for sustainable fuel supplies.
The product range further includes
control technology and data
communication components, as
well as the entire system periphery,
including radiators and underfloor
heating systems.
Viessmann’s orientation is decidedly
international – it maintains 11 factories
in Germany, Austria, France, Canada,
Poland and China, sales organisations
in Germany and 35 other countries
plus 112 sales offices around the
world.
Responsibility for the environment
and society at large, fairness in
dealing with business partners and
employees as well as striving for
perfection and the highest efficiency
in all business processes are core
values for Viessmann. This applies
to every individual employee and
therefore to the whole company.
It offers its customers, with the
multitude of its products and
associated services, the particular
benefit and added value of a strong
brand.
Subject to technical modifications.
9448 483 GB 03/2007