Viessmann Vitovent 200-C Quick guide

Installation and service instructions
for contractors
VIESMANN
Air distribution systems
For central mechanical ventilation units
Air distribution systems
5831646 GB 9/2018 Please keep safe.

2
Please follow these safety instructions closely to
prevent accidents and material 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 environmental pollution.
Note
Details identified by the word "Note" contain additional
information.
Target group
These instructions are exclusively intended for quali-
fied contractors.
■Work on electrical equipment may only be carried
out by a qualified electrician.
■The system must be commissioned by the system
installer or a qualified person authorised by the
installer.
Regulations to be observed
■National installation regulations
■Statutory regulations for the prevention of accidents
■Statutory regulations for environmental protection
■Codes of practice of the relevant trade associations
■All relevant safety regulations as defined by DIN, EN,
DGW, VDE and locally applicable standards
aÖNORM, EN and ÖVE
cSEV, SUVA, SVTI, SWKI and SVGW
Working on the system
■Isolate the system from the power supply (e.g. at a
separate MCB/fuse or a mains isolator) and check
that it is no longer 'live'.
Note
In addition to the control circuit there may be several
power circuits.
Danger
Contact with live components can result in
severe injuries. Some components on PCBs
remain live even after the power supply has
been switched off.
Prior to removing covers from the appliances,
wait at least 4 minutes until the voltage has
completely dropped out.
■Safeguard the system against reconnection.
!Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing any work, touch earthed
objects such as heating or water pipes to dis-
charge static loads.
Repair work
!Please note
Repairing components that fulfil a safety func-
tion can compromise the safe operation of the
system.
Replace faulty components only with genuine
Viessmann spare parts.
Safety instructions
Safety instructions
5831646

3
Auxiliary components, spare and wearing parts
!Please note
Spare and wearing parts that have not been tes-
ted together with the system can compromise its
function. Installing non-authorised components
and making non-approved modifications or con-
versions can compromise safety and may inva-
lidate our warranty.
For replacement, use only spare parts supplied
or approved by Viessmann.
Safety instructions
Safety instructions (cont.)
5831646

4
1. Information Disposal of packaging ............................................................................ 6
Symbols ................................................................................................. 6
Intended use .......................................................................................... 6
Product information ................................................................................ 7
2. Preparing for installation Supply air and extract air ducts ............................................................. 8
■Supply air/extract air ductwork ........................................................... 8
Supply air/extract air valves ................................................................... 9
Air routing between rooms ..................................................................... 9
Air routing between floors ...................................................................... 10
Preventing flow noise and pressure drop .............................................. 10
■Measures against structure-borne noise ............................................ 10
■Silencers ............................................................................................. 10
Thermal insulation of the ductwork ........................................................ 11
Open flue combustion equipment and Vitovent ..................................... 11
Extractor hoods, extracting tumble dryers and the Vitovent .................. 11
Protecting the mechanical ventilation system ........................................ 12
3. Installing outdoor air/
exhaust air ductwork
System diagram - outdoor air/exhaust air .............................................. 13
■For all ventilation units ........................................................................ 13
■For Vitovent 200-C .............................................................................. 15
■For Vitovent 300-C .............................................................................. 16
Important installation information ........................................................... 16
Wall duct with weather grille .................................................................. 17
Wall duct with bird guard ....................................................................... 18
Outdoor and exhaust air duct ................................................................ 19
Outdoor and exhaust air add-on ............................................................ 21
Compact outdoor air or exhaust air duct ................................................ 22
Roof outlet with removable cowl ............................................................ 23
Roof outlet with bird guard ..................................................................... 23
4. Installing supply air/
extract air header
System diagram for supply air/extract air header .................................. 24
Installing the iris diaphragm ................................................................... 25
5. Installing modular supply
air/extract air ductwork
Modular flat/round supply air/extract air system diagram ...................... 26
Connecting flat ducts ............................................................................. 27
Connecting round ducts ......................................................................... 28
Air distribution box with silencing function ............................................. 30
■For Vitovent 200-C .............................................................................. 30
■For Vitovent 300-C .............................................................................. 31
■For Vitovent 200-W, 300-W and 300-F ............................................... 32
Air distributors ........................................................................................ 36
■Connecting the 8-way air distributor ................................................... 36
■Distributor connection cover ............................................................... 37
■4-way air distributor ............................................................................ 37
■Connecting the 2-way air distributor ................................................... 38
6. Fitting the supply/extract
air vents
Installation versions, supply air/extract air vents ................................... 42
Floor/wall outlet ...................................................................................... 44
■Wall installation: Dimensions and clearances to wall and floor .......... 44
■Floor installation: Dimensions and clearances to wall and floor ......... 45
■Installing the floor/wall outlet .............................................................. 45
Supply air/extract air vent ...................................................................... 48
Kitchen extract air vent .......................................................................... 48
Vent connection, straight ....................................................................... 49
Wall/ceiling air vent in "flat design" ........................................................ 50
Wall/ceiling air vent in "comfort design" ................................................. 51
7. Commissioning, inspec-
tion, maintenance
Steps - commissioning, inspection and maintenance ............................ 53
Index
Index
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5
8. Commissioning/service
reports
Commissioning report ............................................................................ 72
Example of commissioning report .......................................................... 73
9. Final decommissioning of
the ventilation system
Final decommissioning and disposal ..................................................... 74
10. Keyword index ................................................................................................................ 75
Index
Index (cont.)
5831646

6
Please dispose of packaging waste in line with statu-
tory regulations.
DE: Use the disposal system organised by
Viessmann.
AT: Use the ARA statutory disposal system (Altstoff
Recycling Austria AG, licence number 5766).
CH: Packaging waste is disposed of by the HVAC
contractor.
Symbols
Symbol Meaning
Reference to other document containing
further information
1.
Step in a diagram:
The numbers correspond to the order in
which the steps are carried out.
Warning of material losses and environ-
mental pollution
Live electrical area
Pay particular attention.
■Component must audibly click into place.
or
■Acoustic signal
■Fit new component.
or
■In conjunction with a tool: Clean the sur-
face.
Dispose of component correctly.
Dispose of component at a suitable collec-
tion point. Do not dispose of component in
domestic waste.
The steps in connection with commissioning, inspec-
tion and maintenance are found in the "Commission-
ing, inspection and maintenance" section and identified
as follows:
Symbol Meaning
Steps required during commissioning
Not required during commissioning
Steps required during inspection
Not required during inspection
Steps required during maintenance
Not required during maintenance
Intended use
Ventilation systems are intended solely for installation
and operation in compliance with DIN 1946-6, with due
attention paid to the associated installation, service
and operating instructions. Ventilation systems are
intended exclusively for controlled mechanical ventila-
tion.
Information
Disposal of packaging
5831646
Information

7
Intended use presupposes that a fixed installation in
conjunction with permissible, system-specific compo-
nents has been carried out.
Commercial or industrial usage for a purpose other
than mechanical ventilation of living spaces shall be
deemed inappropriate.
Any usage beyond this must be approved by the man-
ufacturer in each individual case.
Incorrect usage or routing of the ventilation system is
prohibited and results in an exclusion of liability. Incor-
rect usage also occurs if the components in the venti-
lation system are modified from their intended function.
Note
The ventilation systems are intended exclusively for
domestic use.
Product information
Note
For the routing of an air distribution system, a routing
plan is required, which should take into account air
flow rates, pressure drops and noise distribution. Rout-
ing an air distribution system without prepared engi-
neering plans can lead to irresolvable distribution sit-
uations.
Outdoor air/exhaust air ductwork
Via the outdoor air/exhaust air ductwork, the outdoor
air is fed into the ventilation unit and the exhaust air is
routed out of the building. The ductwork comprises
thermally insulated pipes and bends made of EPP and
metal, silencers and outside air/exhaust air apertures.
On the supply and extract air side, the headers con-
nect the ventilation unit with the air distributors.
Modular flat/round supply air/extract air ductwork
The modular flat/round ductwork is used to distribute
the supply air and to collect the extract air. The low
installed height of the flat ducts makes routing on the
sub floor level possible. The components have an air-
tight connection. The round duct is also suitable for
routing in concrete.
The modular design of the air distribution system
means it can be combined in many ways using the
round and flat duct components. This gives you the
flexibility to adapt the installation situation as required.
The distributors can be central or decentralised.
Various air distributors are available for routing the
ductwork on the supply and extract air sides. Some of
these air distributors are fitted with a silencing function.
The supply air flow rates are adjusted by the use of
restrictor elements (flat and round).
Information
Intended use (cont.)
5831646
Information

8
The air is distributed from the ventilation unit to the liv-
ing spaces (supply air), and from wet areas to the ven-
tilation unit (extract air) via the modular flat/round sup-
ply air and extract air ductwork.
Elements of the supply air/extract air ductwork
■Various air distributors
■Round ducts
■Flat ducts
■Connecting elements
■Silencers
■Various air outlets
Position air distribution boxes and 2-way air distribu-
tors near the ventilation unit.
Route supply air and extract air ducts directly from the
relevant air distributors to the individual rooms.
Installation information
■Danger
Sharp edged metal parts can cause cuts.
Wear safety gloves during installation.
■In order to avoid complicated duct runs, install the
ventilation ductwork prior to installing the central
heating, water and waste water services.
■Ducts must not sag, to prevent condensate accumu-
lating.
■Contamination must not enter the ductwork.
■Lubricating paste is required to assemble the compo-
nents. Only use lubricating paste intended for EPDM.
Supply air/extract air ductwork
Vitovent 200-C/200-W/300-C/300-F/300-W
A
B
F
E
C
D
O
H
PG
K
L
N
M
R
Fig. 1
ALiving room or bedroom
BKitchen or bathroom/WC
CExhaust air
DOutdoor and exhaust air duct
EOutdoor air
FVentilation unit
GEPP pipe
HExtract air
KRound duct connection piece
LFlat duct connection piece
MFlat duct
NRound duct
O8-way air distributor
PSupply air
RModular air distribution box
Preparing for installation
Supply air and extract air ducts
5831646
Installation

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Vitovent 200-C/300-C
B
A
M
D
F
N
H
L
G
C
E
G
G
K
Fig. 2
ALiving room or bedroom
BInstallation room
CExhaust air
DOutdoor and exhaust air duct
EOutdoor air
FVentilation unit
GEPP pipe
HExtract air
KRound duct connection piece
LFlat duct connection piece
MAir distribution box
NSupply air
Supply air/extract air valves
■Arrange the supply air and extract air valves in the
room geometry so that the air is routed as directly as
possible between rooms that are ventilated and
those from which air is extracted. At the same time,
ensure as broad a flow pattern as possible through
the entire room.
■Max. distance to the ceiling in the case of wall
mounting: 300 mm
Air routing between rooms
■Create an interconnected room air supply between
the rooms to be ventilated and those from which air
is to be extracted.
■For this, a gap under doors into the apartment is suf-
ficient. The correlation between gap height and air
flow rate is shown in DIN 1946-6 (see technical
guide).
■Where internal doors are tightly sealed, provide on-
site noise attenuated overflow vents in the internal
walls or in part of the door.
Preparing for installation
Supply air and extract air ducts (cont.)
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Installation

10
For routing air between different floors, an iris dia-
phragm is installed in the riser. The zinc-plated steel
iris diaphragm adjusts the air flow rates.
Preventing flow noise and pressure drop
■Install air distribution boxes close to the ventilation
unit.
Maximum length of supply air and extract air ducts
between the ventilation unit and the air distribution
box: 5 m
■Symmetrical layout of the supply air and extract air
ducts
■Short runs, few bends
■In areas where greater attenuation is required, install
one silencer (accessories) each in the supply and
extract air ducts between the air distribution box and
ventilation unit.
■In areas where greater attenuation is required, pro-
vide additional silencers between adjacent living
rooms, bedrooms and toilets.
■To reduce the pressure drop in ducts, fit central ris-
ers/downpipes with EPP pipe DN 160 or DN 180
where appropriate.
Measures against structure-borne noise
The ventilation units have sound-absorbing adjustable
feet or rubber washers to counteract structure-borne
noise transmission. Therefore, if appliances are moun-
ted on concrete or screed floors and solid walls, no
additional measures need be taken.
When a unit is installed on wooden ceilings, we recom-
mend additionally insulating it against vibration by
means of a concrete slab or anti-vibration mounts.
Never position the ventilation unit in the centre of a
ceiling if the ceiling is constructed with wooden beams.
Note
This also applies when using a mounting base (acces-
sories).
Silencers
Silencer, round, flexible
1100
a
b
Fig. 3
Dimensions, silencer, round: Packing density
50 mm
Connection Dimensions in mm
a b
DN 125 125 224
DN 160 160 250
DN 180 180 280
Dimensions, silencer, round: Packing density
25 mm
Connection Dimensions in mm
a b
DN 160 160 200
DN 180 180 224
Silencer, flat, impact-resistant version
175
500
360
175
49
52
20 20
Fig. 4
Preparing for installation
Air routing between floors
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Installation

11
Weight: 1.55 kg
Thermal insulation of the ductwork
■Thermally insulate the outdoor air and exhaust air
ducts to prevent the formation of condensate, as
specified by DIN 1946-6; these must also have an
external vapour barrier.
■Supply air and extract air ducts which pass through
unheated parts of the building must be insulated with
vapour diffusion-proof thermal insulation material.
■Heat losses from the ductwork must be kept to a
minimum to ensure optimum heat recovery with the
Vitovent.
Thermally insulate all ductwork in unheated areas in
line with DIN 1946-6 using vapour diffusion-proof
material.
Insulation measures:
■Insulate in accordance with current engineering
standards.
■Use tape to make the connections airtight.
■Avoid gaps.
■Isolate ceiling and wall outlets with insulation strips.
■Suitable insulation material could be Armaflex
for example.
Open flue combustion equipment and Vitovent
Danger
The simultaneous operation of open flue com-
bustion equipment (e.g. an open fireplace) and
the ventilation system in a space with combus-
tion air interconnection results in dangerous
negative pressure in the interior. Negative pres-
sure can result in flue gas re-entering the room.
In order to prevent health risks, observe the fol-
lowing:
■Never operate the Vitovent simultaneously with
open flue combustion equipment (e.g. open fire-
place).
■Only operate combustion equipment in room sealed
mode with a separate combustion air supply. We rec-
ommend combustion equipment that has general
building approval as room sealed combustion equip-
ment from the Deutsches Institut für Bautechnik
(DIBt) [Germany].
■Keep doors to boiler rooms that are not part of the
combustion air interconnection with the living space
airtight and shut.
Information regarding the operation of the ventila-
tion system in conjunction with open flue combus-
tion equipment
■On-site safety equipment must be installed that will
switch off the ventilation unit when there is negative
pressure inside the room.
■The relevant flue gas inspector must give their
approval [check local regulations].
■Ensure frost protection of the countercurrent heat
exchanger, e.g. with a preheating coil or geothermal
heat exchanger.
Extractor hoods, extracting tumble dryers and the Vitovent
!Please note
The simultaneous operation of extractor hoods
or extracting tumble dryers and the ventilation
unit in interconnected rooms results in negative
pressure inside the room.
Never link extractor hoods or extracting tumble
dryers into the ventilation unit ductwork.
Set up kitchen extractor hoods as recirculating
extractors, which is more energy efficient.
Preparing for installation
Preventing flow noise and pressure drop (cont.)
5831646
Installation

12
Never connect existing extractor hoods to the extract
air duct of the mechanical ventilation system for the
following reasons:
■Hygiene, contamination:
grease deposits in the extract air system
■Noise from the supply air valves:
Extractor hoods operate with a substantially greater
air flow rate (> 300 m3/h) than the ventilation unit.
The generated negative pressure creates a "short
circuit" inside the system, as the amount of differen-
tial air must be made up by the ventilation ductwork.
Connect extractor hoods via a coaxial exhaust air sys-
tem to enable the differential air volume to be replen-
ished.
Provide an interlock for the extractor when using an
extractor hood in conjunction with open flue combus-
tion equipment: See chapter "Open flue combustion
equipment and Vitovent"
Protecting the mechanical ventilation system
!Please note
Dust entering the ventilation unit and the duct-
work can result in faulty operation of the
mechanical ventilation system.
Prevent the ingress of dust whilst building work
is in progress by the following measures:
■Following the installation, close all supply air
and extract air apertures, for example with
self-adhesive film.
■Only start the ventilation unit after all other
construction work inside the building has been
completed.
■You can expect an increase in dust during the
construction phase. Filters therefore already
need to be checked after 3 to 4 weeks.
Preparing for installation
Extractor hoods, extracting tumble dryers and… (cont.)
5831646
Installation

13
The components of the outdoor air/exhaust air duct-
work system are the header and the outdoor and
exhaust air ducting.
For all ventilation units
7
3
2
4
8
6 5 34
43
9
3
11
Fig. 5
Positions and connection dimensions for Fig. 5
Pos. Component Vitovent
200-C
Vitovent
200-W
Vitovent
300-C
Vitovent
300-F
Vitovent 300-W,
Type H32E/H32S
B300 B400
1Ventilation unit connector DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
2Wall duct with weather grille DN 160 DN 160 DN 160 DN 160 DN 160 DN 180
Reducer (not shown) DN 160/
DN 125
DN 160/
DN 125
or
Wall duct with bird guard
DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
or
Outdoor and exhaust air add-
on
DN 160 DN 160 DN 160 DN 160 DN 160 DN 180
Reducer, supplied with outdoor
and exhaust air add-on
DN 160
DN 160/
DN 125
DN 160/
DN 125
or
Outdoor and exhaust air duct
DN 125 DN 160 DN 160 DN 160 DN 180
Installing outdoor air/exhaust air ductwork
System diagram - outdoor air/exhaust air
5831646
Installation

14
Pos. Component Vitovent
200-C
Vitovent
200-W
Vitovent
300-C
Vitovent
300-F
Vitovent 300-W,
Type H32E/H32S
B300 B400
3Pipe with female connection
(EPP)
Or flexible pipe
Or folded spiral-seam tube
DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
4Female connection (EPP) DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
5Mounting bracket DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
690° bend with female connec-
tion (EPP), can be split into 2 x
45° bends
DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
7External electric preheating
coil
DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
8Roof outlet (stainless steel)
with removable hood
DN 160 DN 160 DN 160 DN 160 DN 160 DN 160
Reducer (not shown) DN 160/
DN 125
DN 160/
DN 125
DN 180/
DN 160
or
Roof outlet (sheet steel, pain-
ted)
Note
Can also be used as outdoor
air aperture
DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
9Silencer, round, flexible DN 125 DN 160 DN 125 DN 160 DN 160 DN 180
Further components (not shown)
Outdoor air filter box (with F7
filter)
DN 160 DN 160 DN 160 DN 160 DN 160
Reducer DN 160/
DN 125
DN 160/
DN 125
DN 180/
DN 160
Installing outdoor air/exhaust air ductwork
System diagram - outdoor air/exhaust air (cont.)
5831646
Installation

15
For Vitovent 200-C
Outdoor and exhaust air duct DN 125
2
4
6
5
3
3
5
6
1
2
6
5
3
3
5
6
1
4
L
R
A
B
B
A
Fig. 6
1Vitovent 200-C
LUnit versions with outdoor air connector on the
left
RUnit versions with outdoor air connector on the
right
2Outdoor and exhaust air duct
3Pipe with female connection (EPP) or flexible pipe/
folded spiral-seam tube
4Mounting bracket
5Silencer, round, flexible
6Connector (EPP)
AOutdoor air
BExhaust air
Installing outdoor air/exhaust air ductwork
System diagram - outdoor air/exhaust air (cont.)
5831646
Installation

16
For Vitovent 300-C
Outdoor and exhaust air duct DN 125
2
4
6
5
3
7
3
5
6
1
Fig. 7
1Vitovent 300-C
2Outdoor and exhaust air duct
3Pipe with female connection (EPP) or flexible pipe/
folded spiral-seam tube
4Mounting bracket
5Silencer, round, flexible
6Connector (EPP)
7Electric preheating coil
Important installation information
Note
Installation of the wall ducts shown hereafter always
relates to the finished external wall, including exterior
rendering.
Installing outdoor air/exhaust air ductwork
System diagram - outdoor air/exhaust air (cont.)
5831646
Installation

17
A2.
3.
5.
4.
300
1.
B C D
Fig. 8
AEPP pipe sleeve
BExterior rendering, including thermal insulation
CWall
DInterior plaster finish
A
9.
6.
7.
B
2x
8.
Fig. 9
AEPP pipe sleeve
BMounting ring, sealing level
5. Seal mounting ring sealing level B with suitable
adhesive tape towards the sealing level.
Note
Thermally insulate the outdoor air duct from the exter-
nal wall connection to the ventilation unit in vapour dif-
fusion-proof material. Ensure an airtight seal at all con-
nections (use cold shrink tape).
Installing outdoor air/exhaust air ductwork
Wall duct with weather grille
5831646
Installation

18
Note
The pipe sleeve can be built into the brickwork. Before
shortening the pipe sleeve, take the complete con-
struction of the wall, including plaster thickness, into
account.
Only shorten the pipe sleeve from the inside.
Wall duct with bird guard
A
2.
a
1.
DCB
Fig. 10
AEPP pipe
BExterior rendering, including thermal insulation
CWall
DInterior plaster finish
EPP pipe Dim. a in mm
DN 125 155
DN 160 190
DN 180 210
5.
3. A
4.
Fig. 11
AEPP pipe
Note
Before shortening the pipe sleeve, take the complete
construction of the wall, including plaster thickness,
into account.
Installing outdoor air/exhaust air ductwork
Wall duct with weather grille (cont.)
5831646
Installation

19
A
aa
5
d
b
3.
1.
2.
DCB
c
Fig. 12
AEPP pipe
BExterior rendering, including thermal insulation
CWall
DInterior plaster finish
EPP pipe Dimensions in mm
a b c d
DN 125 (Vitovent 200-C) 155 300 205 470
DN 125 (Vitovent 300-C) 155 330 205 470
DN 160 190 400 205 590
DN 180 210 400 205 590
Installing outdoor air/exhaust air ductwork
Outdoor and exhaust air duct
5831646
Installation

20
8.
4.
7.
6.
5.
Fig. 13
Note
Before shortening the pipe sleeve, take the complete
construction of the wall, including plaster thickness,
into account.
Repositioning the outdoor air and exhaust air side
2.
8.3.
1.
180°
4.
Fig. 14
Installing outdoor air/exhaust air ductwork
Outdoor and exhaust air duct (cont.)
5831646
Installation