Viessmann Vitodens 222-F Quick guide

Installation and service
instructions
for contractors
VIESMANN
Vitodens 222-F
Type FS2B, 4.8 to 35 kW
Gas condensing storage combi boiler
Natural gas and LPG version
For applicability, see the last page
VITODENS 222-F
5457 552 GB 3/2011 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,
■ Gas Safety (Installation & Use) Regu-
lations
– the appropriate Building Regulation
either the Building regulations, the
Building Regulation (Scotland),
Building Regulations (Northern Ire-
land),
– the Water Fittings Regulation or
Water Bylaws in Scotland,
– the current I.E.E. Wiring Regula-
tions.
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■ Never 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).
Safety instructions
Safety instructions
5457 552 GB

3
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 leading to the
living space.
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 electro-static dis-
charges.
Touch earthed objects, such as
heating or water pipes, to dis-
charge static loads.
Repair work
!Please note
Repairing components which ful-
fil a safety function can compro-
mise 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 which
have not been tested together
with the heating system can com-
promise its function. Installing
non-authorised components and
non-approved modifications/con-
version can compromise safety
and may invalidate our warranty.
For replacements, use only orig-
inal spare parts from Viessmann
or those which are approved by
Viessmann.
Safety instructions
Safety instructions (cont.)
5457 552 GB

4
Installation instructions
Preparing for installation
Product information.............................................................................................. 6
Preparing for installation....................................................................................... 6
Installation sequence
Installing the boiler............................................................................................... 10
Opening the control unit casing............................................................................ 13
Electrical connections........................................................................................... 14
Closing the control unit casing............................................................................. 20
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...................................................................................... 63
General/group "1"................................................................................................. 64
Boiler/group "2".................................................................................................... 66
DHW/group "3"..................................................................................................... 67
Heating circuit 1, heating circuit 2, heating circuit 3/group "5"............................. 67
Code 2
Calling up coding level 2...................................................................................... 74
General/group "1"................................................................................................. 75
Boiler/group "2".................................................................................................... 82
DHW/group "3"..................................................................................................... 83
Heating circuit 1, heating circuit 2, heating circuit 3/group "5"............................. 85
Diagnosis and service scans
Calling up the service level................................................................................... 95
Diagnosis.............................................................................................................. 96
Checking outputs (relay test)................................................................................ 101
Troubleshooting
Fault display......................................................................................................... 103
Fault codes........................................................................................................... 105
Repairs................................................................................................................. 119
Function description
Constant temperature control unit........................................................................ 132
Index
Index
5457 552 GB

5
Weather-compensated control unit...................................................................... 133
Internal extensions............................................................................................... 136
External extensions (accessories)........................................................................ 138
Control functions.................................................................................................. 142
Allocating heating circuits to the remote control................................................... 150
Electronic combustion controller.......................................................................... 150
Designs
Internal connection diagram................................................................................. 152
External connection diagram................................................................................ 153
Parts lists............................................................................................................ 155
Commissioning/service reports........................................................................ 164
Specification....................................................................................................... 165
Certificates
Declaration of conformity...................................................................................... 166
Manufacturer's certificate according to the 1st BImSchV [Germany]................... 167
Keyword index.................................................................................................... 168
Index
Index (cont.)
5457 552 GB