Viessmann VITOLADENS 300-W Quick guide

Installation and service
instructions
for contractors
VIESMANN
Vitoladens 300-W
Type VP3C, 12.9/19.3 kW, 16.1/23.5 kW
Wall mounted oil condensing boiler
For applicability, see the last page
VITOLADENS 300-W
5782 885 UAE 2/2013 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 inten-
ded for qualified contractors.
■ 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:
■ National installation requirements
■ Legal instructions regarding the pre-
vention of accidents
■ Legal instructions regarding environ-
mental protection
■ The Code of Practice of relevant trade
associations
■ All current safety regulations as
defined by DIN, EN, DVGW, VDE and
all locally applicable standards
aÖNORM, EN and ÖVE
cSEV, SUVA, SVTI and SWKI
Working on the system
■ Isolate the system from the power sup-
ply (e.g. by removing the separate fuse
or by means of a mains isolator) and
check that it is no longer 'live'.
■ Safeguard the system against unau-
thorised reconnection.
!Please note
Electronic assemblies can be
damaged by electrostatic dis-
charge.
Before beginning work, touch
earthed objects, such as heating
or water pipes, to discharge static
loads.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise
the safe operation of your sys-
tem.
Replace faulty components only
with original Viessmann spare
parts.
Safety instructions
Safety instructions
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Auxiliary components, spare and
wearing parts
!Please note
Spare and wearing parts that
have not been tested together
with the system can compromise
its function. Installing non-author-
ised components and making
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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Service instructions
Product information
Intended use......................................................................................................... 6
Installation instructions
Preparing for installation................................................................................... 7
Installation sequence
Fitting the boiler and making connections............................................................ 9
Flue gas connection............................................................................................. 11
Condensate connection........................................................................................ 11
Installing the oil supply as a single line system.................................................... 12
Opening the control unit casing............................................................................ 13
Electrical connections........................................................................................... 15
Closing the control unit casing and inserting the programming unit..................... 19
Connecting the fire protection switch (for a only)............................................. 20
Fitting the front panel............................................................................................ 21
Service instructions
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 22
Further details regarding the individual steps....................................................... 24
Code 1
Calling up coding level 1...................................................................................... 54
General................................................................................................................. 55
Boiler.................................................................................................................... 57
DHW..................................................................................................................... 58
Solar..................................................................................................................... 59
Heating circuit 1, heating circuit 2, heating circuit 3............................................. 60
Code 2
Calling up coding level 2...................................................................................... 66
General................................................................................................................. 67
Boiler.................................................................................................................... 74
DHW..................................................................................................................... 76
Solar..................................................................................................................... 78
Heating circuit 1, heating circuit 2, heating circuit 3............................................. 82
Diagnosis and service scans
Calling up the service level................................................................................... 90
Diagnosis.............................................................................................................. 90
Index
Index
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Checking outputs (relay test)................................................................................ 93
Troubleshooting
Fault display......................................................................................................... 95
Fault codes........................................................................................................... 96
Repair................................................................................................................... 104
Function description
Control unit .......................................................................................................... 112
External extensions (accessories)........................................................................ 115
Control functions.................................................................................................. 119
Allocating heating circuits to the remote control................................................... 127
Designs
Connection and wiring diagram – Internal connections ...................................... 128
Connection and wiring diagram – External connections...................................... 129
Parts lists
Ordering parts...................................................................................................... 131
Overview of the assemblies................................................................................. 132
Casing assembly.................................................................................................. 133
Heat cell assembly............................................................................................... 134
Burner assembly.................................................................................................. 136
Hydraulic assembly.............................................................................................. 138
Control unit assembly........................................................................................... 140
Miscellaneous assembly...................................................................................... 142
Commissioning/service reports........................................................................ 143
Specification....................................................................................................... 145
Certificates
Declaration of conformity...................................................................................... 146
Manufacturer's certificate according to the 1st BImSchV [Germany]................... 147
Keyword index.................................................................................................... 148
Index
Index (cont.)
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The appliance is only intended to be
installed and operated in sealed unven-
ted heating systems that comply with
EN 12828, with due attention paid to the
associated installation, service and
operating instructions. It is only designed
for the heating of water that is of potable
water quality.
Intended use presupposes that a fixed
installation in conjunction with permissi-
ble, system-specific components has
been carried out.
Commercial or industrial usage for a pur-
pose other than heating the building or
DHW shall be deemed inappropriate.
Any usage beyond this must be
approved by the manufacturer for the
individual case.
Incorrect usage or operation of the appli-
ance (e.g. the appliance being opened
by the system user) is prohibited and
results in an exclusion of liability. Incor-
rect usage also occurs if the components
in the heating system are modified from
their intended use (e.g. if the flue gas and
ventilation air paths are sealed).
Product information
Intended use
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Preparing for boiler installation
!Please note
Avoid device damage.
Connect all pipework free of load
and torque stress.
For on-site preparation of the
water and electrical connections,
see the installation instructions
for the installation aid or mount-
ing frame.
480
min. 350
850
380
1925
BA C EFD
G
K
H
AHeating flow Rp¾
BExpansion vessel connection G¾
CCylinder flow G¾
DCylinder return G¾
EHeating return Rp¾
FFilling/draining
Preparing for installation
Preparing for installation
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Installation

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GWiring area
HDimension for installation with DHW
cylinder below
KCondensate drain
1. Prepare the water connections. Thor-
oughly flush the heating system.
2. Prepare the oil connections (oil fil-
ter).
■ Single line filter (magnum filter
bowl with large filter element, filter
grade max. 40 µm) with automatic
fuel oil air vent valve (see
page 12).
■ Fit the filter as near as possible to
the lower edge of the boiler (on l.h.
or r.h. side) to leave the flexible oil
lines inside the boiler long enough
to remove the burner.
3. Prepare the electrical connections.
■Power cable: NYM-J 3 x 1.5 mm2,
max. fuse 16 A, 230 V/50 Hz
■ Accessory cables: NYM with the
required number of conductors for
the external connections
■Allow all cables in area "G" to pro-
trude 1200 mm from the wall
Preparing for installation
Preparing for installation (cont.)
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2x
1.
2.
4.
3.
Installation sequence
Fitting the boiler and making connections
5782 885 UAE
Installation

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A C D E FB
1.
2.
5x
AHeating flow
BExpansion vessel connection
CCylinder flow
DCylinder return
EHeating return
FFilling/draining
Installation sequence
Fitting the boiler and making connections (cont.)
5782 885 UAE