Viessmann Vitodens 222-F Guida rapida

Installation and service

instructions

for contractors

VIESMANN

Vitodens 222-F

Type FS2A

Compact gas condensing boiler

4.8 to 35 kW natural gas and LPG version

GC No 47-819-15 (19kW); 47-819-16 (26kW); 47-819-17 (35kW)

For applicability, see the last page

VITODENS 222-F

5692 816 GB 4/2009 Please keep safe.

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

5692 816 GB

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.)

5692 816 GB

Installation instructions

Preparing for installation

Product information.............................................................................................. 6

Preparing for installation....................................................................................... 6

Installation sequence

Installing the boiler............................................................................................... 11

Opening the control unit casing............................................................................ 14

Electrical connections........................................................................................... 15

Closing the control unit casing............................................................................. 19

Service instructions

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 21

Further details regarding the individual steps....................................................... 23

Code 1

Calling up code 1.................................................................................................. 62

General – Group 1................................................................................................ 63

Boiler – Group 2................................................................................................... 64

DHW – Group 3.................................................................................................... 67

Heating circuit 1/Heating circuit 2 – Group 5........................................................ 68

Code 2

Calling up coding level 2...................................................................................... 74

General – Group 1................................................................................................ 75

Boiler – Group 2................................................................................................... 77

DHW – Group 3.................................................................................................... 78

Heating circuit 1/Heating circuit 2 – Group 5........................................................ 80

Diagnosis and service scans

Diagnosis.............................................................................................................. 83

Checking outputs (relay test)................................................................................ 87

Troubleshooting

Fault display......................................................................................................... 90

Fault codes........................................................................................................... 91

Repairs................................................................................................................. 100

Function description

Constant temperature control unit........................................................................ 113

Weather-compensated control unit...................................................................... 114

Index

5692 816 GB

Internal extensions............................................................................................... 116

External extensions (accessories)........................................................................ 118

Control functions.................................................................................................. 120

Remote control DIP switches............................................................................... 126

Electronic combustion controller.......................................................................... 127

Designs

Internal connection diagram................................................................................. 129

External connection diagram................................................................................ 130

Parts lists............................................................................................................ 132

Commissioning/service reports........................................................................ 140

Specification....................................................................................................... 141

Certificates

Declaration of conformity...................................................................................... 142

Manufacturer's certificate according to the 1st BImSchV [Germany]................... 142

Keyword index.................................................................................................... 143

Index

Index (cont.)

5692 816 GB

Vitodens 222-F, FS2A

Set up for operation with natural gas H.

For conversion to LPG P (without conversion kit), see page 29.

The Vitodens 222-F should generally only be delivered to those countries specified

on the type plate. For deliveries to alternative countries, an approved contractor, on

his own initiative, must arrange individual approval in accordance with the law of the

land.

Preparing for installation

Preparing the boiler installation

Use a connection set, available as an accessory, to make the connection on the gas

and water sides. The following overview shows sample connection sets for installa-

tion on finished walls to the top or side.

Preparing the connections on site:

Connection set installation instructions

Preparing for installation

Product information

5692 816 GB

100

569

140

320

361

398

410

236

595

600

220

330

AHeating flow R ¾"

BDHW R ½"

CGas connection R ¾"

DCold water R ½"

EHeating return R ¾"

FDHW circulation R ½" (separate

accessory)

GCondensate drain to the back into

the wall

HSide condensate drain

KCable entry

Rated output range 4.8 to 19 kW 6.5 to 26 kW 8.8 to 35 kW

a (mm) 745 745 945

b (mm) 750 750 950

Preparing for installation

Preparing for installation (cont.)

5692 816 GB

Installation

Rated output range 4.8 to 19 kW 6.5 to 26 kW 8.8 to 35 kW

c (mm) 972 972 1172

d (mm) 1027 1027 1227

e (mm) 1082 1082 1302

f (mm) 1137 1137 1337

g (mm) 1191 1191 1391

h (mm) 1247 1247 1447

k (mm) 1302 1302 1562

l (mm) 1437 1437 1637

m (mm) 1466 1466 1666

n (mm) 1477 1477 1677

p (mm) 1526 1526 1726

Note

The adjustable feet give all height meas-

urements a tolerance of +15 mm.

1. Prepare the heating water connec-

tions.

Flush the heating system thor-

oughly.

Note

Should an additional diaphragm

expansion vessel be required on site,

connect that vessel into the heating

return. The DHW expansion vessel is

supplied as standard and will be fitted

inside the appliance.

Preparing for installation

Preparing for installation (cont.)

5692 816 GB

2. Prepare the DHW connections.

Install the safety assembly (acces-

sory or on-site provision) in accord-

ance with DIN 1988 in the cold water

line (see page 10).

Recommendation:

Install the safety valve above the

DHW cylinder to protect it against

contamination, scaling and high tem-

peratures.

Connect the drain hose to conden-

sate collector L. Remove plug from

condensate collector.

3. Route condensate hose M to the

back (drain in wall G) or to the side

aperture H (see page 6).

Route condensate hose with a U-

bend and connect to on-site drain line

or siphon.

4. Prepare the gas connection accord-

ing to TRGI or TRF or all local regu-

lations.

5. Prepare the electrical connections.

■Power cable: NYM-J 3 x 1.5 mm2,

fuse max. 16 A, 230 V/50 Hz.

■ Accessory cables: NYM with the

required number of conductors for

the external connections.

■Allow all cables in area "K" (see

page 7) to protrude 2000 mm from

the wall.

Preparing for installation

Preparing for installation (cont.)

5692 816 GB

Installation

Safety assembly to DIN 1988

ASafety assembly (accessory to con-

nection sets for unfinished walls)

BSafety valve

CVisible blow-off line outlet

DShut-off valve

EFlow regulating valve (installation

recommended)

FPressure gauge connection

GNon-return valve

HDrain

KCold water

LDrinking water filter

MPressure reducer

NNon-return valve/pipe separator

OCold water connection at connec-

tion set (accessory)

Note

Please read the additional mandatory

installation and maintenance instruc-

tions to comply with G3 Building regula-

tion and the requirements of the UK

Water Supply (Water Fittings) Regula-

tions/ Scottish Water Bylaws.

Preparing for installation

Preparing for installation (cont.)

5692 816 GB

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