Viessmann VITODENS 333 Manual de usuario
Supplied By www.heating spares.co Tel. 0161 620 6677
VIESMANN
Installation instructions
for heating engineers
Vitodens 333
Type WS3A, 6.6 to 26.0 kW
Compact gas fired condensing boiler
natural gas and LPG version
VITODENS 333
5862 566 GB 3/2004 Dispose after installation
Supplied By www.heating spares.co Tel. 0161 620 6677
Please follow these safety instructions closely to prevent accidents and
material losses.
Safety instructions explained
!Important information
This symbol warns against the
risk of material losses and
environmental pollution.
Note
Details identified by the words "Note"
contain additional information.
Safety regulations
Installation, initial start-up, inspection,
maintenance and repairs must be car-
ried out by a competent person
(heating engineer/installation contrac-
tor).
Observe all current safety regulations
as defined by DIN, EN, DVGW, TRGI,
TRF, VDE or all locally applicable
standards.
See also the "safety instructions" in
the "Vitotec Technical Guide" folder.
Before working on the equipment/
heating system, isolate the mains
electrical supply (e.g. by removing a
separate mains fuse or by means of a
mains electrical isolator) and safe-
guard against unauthorised reconnec-
tion.
Close the main gas shut-off valve and
safeguard against unauthorised
reopening.
Electrical assemblies provided on site
must be type-approved.
Work on gas equipment
This must only be carried out by an
approved gas fitter.
Observe all commissioning work spe-
cified for gas installations to TRGI or
TRF and all local regulations.
Safety instructions
2
5862 566 GB
Supplied By www.heating spares.co Tel. 0161 620 6677
Preparing for installation
Product information .................................................................................... 4
Preparations for boiler installation ............................................................... 5
Installation
Installing the boiler and making all connections ........................................... 7
Flue gas connection.................................................................................... 8
Gas connection .......................................................................................... 8
Checking anode connection........................................................................ 9
Opening the control unit housing................................................................. 10
Electrical connections................................................................................. 11
&Routing connecting cables ....................................................................... 13
Closing control unit housing and inserting user interface ............................. 14
Front panel installation................................................................................ 15
Commissioning and adjustments................................................................. 15
Index
3
5862 566 GB
Supplied By www.heating spares.co Tel. 0161 620 6677
Vitodens 333, Type WS3A
Set up for operation with natural gas E.
The natural gas E version can be converted to natural gas LL or LPG P using a
conversion kit.
Product information
4
5862 566 GB
Supplied By www.heating spares.co Tel. 0161 620 6677
On-site preparations when using a connection set (accessory), see the
installation instructions of the connection set.
ACold water G¾"
BHeating flow G¾"
CGas connection G¾"
DHeating return G¾"
EDHW G¾"
FDHW circulation G1"
GDrain outlet kit (accessory)
HCable arrangement area
KWall clearance with connection
set (accessory)
LWall clearance with on-site con-
nection
Preparations for boiler installation
5
5862 566 GB
Supplied By www.heating spares.co Tel. 0161 620 6677
1. Prepare the primary connections.
Thoroughly flush the heating sys-
tem.
Note
Should an on-site diaphragm
expansion vessel be required,
install this into the heating return. If
no connection set (accessory) is
used, install the on-site fill tap into
the heating return.
2. Prepare the secondary connec-
tions. Install the safety assembly
(accessory or on-site provision) to
DIN 1988 [or local regulations] into
the cold water supply line.
3. Equip the DHW circulation pipe
with circulation pump, check valve
andtimeswitch.
4. Connect the condensate drain with
apipeventtothepublicsewer.
5. Prepare the gas connection
accordingtoTRGIorTRForall
local regulations.
6. Prepare the electrical connections.
&Mainscable:NYM-J3x1.5mm
2
,
fuse max. 16 A, 230 V~, 50 Hz.
&Accessory cables: NYM with the
required number of conductors
for the external connections.
&Allcablesinarea"H" should
protrude 2 000 mm from the wall.
Preparations for boiler installation (cont.)
6
5862 566 GB
Supplied By www.heating spares.co Tel. 0161 620 6677
Note
Connect the condensate drain and drain lines from the safety valves with a
slopeandapipeventtothepublicsewer.
AConnection set (accessory)
Installing the boiler and making all connections
7
5862 566 GB
Supplied By www.heating spares.co Tel. 0161 620 6677
Connect the balanced flue pipe. Flue gas system installation
instructions.
Gas connection
AGas connection
Conversion to other gas
types:
Conversion kit installation
instructions
Information regarding operation
with LPG
We recommend the installation of an
external safety solenoid valve when
installing the boiler in rooms below
ground level.
1. Carry out a leak test.
!Important information
Excessive test pressure
leadstodamagetotheboi-
ler and gas train.
Max. test pressure
150 mbar. If a higher pres-
sure is required for leak
tests, separate the boiler
and the gas train from the
mains gas supply (undo fit-
tings).
2. Purge the gas supply pipe.
Flue gas connection
8
5862 566 GB
Supplied By www.heating spares.co Tel. 0161 620 6677
AMagnesium anode BEarth cable
1. Removetheflangelidcover. 2. Check whether the earth cable is
connected on the magnesium
anode.
Checking anode connection
9
5862 566 GB
Supplied By www.heating spares.co Tel. 0161 620 6677
Opening the control unit housing
10
5862 566 GB
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4
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