Viessmann Vitotwin 300-W Instrucciones de funcionamiento

Installation and service

instructions

for contractors

VIESMANN

Vitotwin 300-W

Type C3HA

Micro CHP boiler based on Stirling engine

Natural gas version

For applicability, see the last page

VITOTWIN 300-W

5618 294 GB 4/2012 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

5618 294 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.)

5618 294 GB

Installation instructions

Preparing for installation

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

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

Installation sequence

Fitting the wall mounting bracket.......................................................................... 36

Mounting the boiler............................................................................................... 38

Removing the front panel..................................................................................... 39

Removing the transport brackets......................................................................... 42

Filling the siphon with water................................................................................. 43

Flue outlet............................................................................................................. 44

Condensate connection........................................................................................ 44

Gas connection.................................................................................................... 45

Opening the control unit casing............................................................................ 47

Terminal connections........................................................................................... 47

Mounting the front panel....................................................................................... 58

Service instructions

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 59

Further details regarding the individual steps....................................................... 61

Codes

Calling up codes................................................................................................... 85

Changing codes................................................................................................... 86

Service scans

Calling up service scans....................................................................................... 112

Fault messages and fault history.......................................................................... 112

Status (operating states)...................................................................................... 112

Relay test............................................................................................................. 113

Input/output test.................................................................................................... 114

Service/special operation (service functions)....................................................... 115

Diagnostics........................................................................................................... 116

Troubleshooting

Fault display......................................................................................................... 121

Implementing a user reset ................................................................................... 121

Carry out service reset ........................................................................................ 122

Reset circuit breaker............................................................................................ 122

Fault messages.................................................................................................... 123

Index

5618 294 GB

Repairs................................................................................................................. 138

Function description

Boiler temperature control.................................................................................... 153

Cylinder temperature control................................................................................ 156

Heating circuit control........................................................................................... 158

Designs

Connection and wiring scheme............................................................................ 161

Parts lists

Ordering parts...................................................................................................... 165

Overview of the assemblies................................................................................. 166

Sheet metal parts assembly................................................................................. 167

Heat cell assembly............................................................................................... 169

Heat exchanger assembly.................................................................................... 171

Burner assembly.................................................................................................. 171

Air distribution valve assembly............................................................................. 172

Gas:air route assembly........................................................................................ 174

Stirling unit assembly........................................................................................... 176

Hydraulic assembly.............................................................................................. 178

Control unit assembly........................................................................................... 180

Miscellaneous assembly...................................................................................... 182

Commissioning/service reports

Report................................................................................................................... 184

Specification....................................................................................................... 186

Certificates

Declaration of conformity...................................................................................... 187

Manufacturer's certificate according to the 1st BImSchV [Germany]................... 188

Keyword index.................................................................................................... 189

Index

Index (cont.)

5618 294 GB

Vitotwin 300-W, C3HA

Preset for operation with natural gas E.

Conversion to natural gas LL see page 66.

Rated heating output range (TV/TR 40/30 °C) 3.5 to 26.0 kW.

Electrical output max. 1 kW (gross).

The integral net electricity meter is approved to DIN VDE AR 4105.

Destination countries

As a general rule, the Vitotwin 300-W may only be supplied to those countries speci-

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

must arrange individual approval on his own initiative and in accordance with the law

of the country in question.

Preparing for installation

Transportation and handling

!Please note

To avoid equipment damage,

move the Vitotwin 300-W

on its pallet to the installation

location.

Transport the appliance in a ver-

tical position wherever possible.

The appliance may be placed in

a horizontal position for up to

30 min during handling.

Power supply

!Please note

To avoid equipment damage,

never operate the Vitotwin 300-W

with anything other than mains

power.

Preparing for installation

Product information

5618 294 GB

Information regarding system versions

■ The Vitotwin 300-W will be delivered

with connection accessories for the

relevant system version in accordance

with the order.

■ Connect the DHW circulation pump on

site (if applicable).

Preparing for installation

Preparing for installation (cont.)

5618 294 GB

Installation

System version 1, ID: 4605451_1201_02

System with multi mode heating water buffer cylinder

Hydraulic installation scheme

2 B

--2B/ATS--

--230V--

--52--

--20-- --2--

--2B/B4--

--2B/B3--

--B42--

--B4--

--B3--

--ATS--

-Wireless-

--B41-- --2B/WIRELESS--

HV1

WW/Z

HV2/HR1

HVS/HRS

HR3

HR2

--2B/B41--

3 A

3 B

--41/2--

--41/52--

--41/20--

--2B/B42--

--BSB--

--X1--

--230V-- --X300--

--X301--

--X207--

--BSB--

HV1 N/A WW/Z DHW/DHW circulation

Preparing for installation

Preparing for installation (cont.)

5618 294 GB

HV2/HR1 Heating water flow,

Vitotwin 300-W

HR2 Heating water flow, heating

circuit

HR3 Heating water return, heat-

ing circuit

KW Cold water

E Drain

HVS/HRS Heating water return,

Vitotwin 300-W

Equipment required

Pos. Designation

1Vitotwin 300 W

with

2Weather-compensated control unit

2BJunction box for sensors and accessories (low voltage)

3ARemote control unit FBE

3BWireless base station FB

4Outside temperature sensor ATS

5Cylinder temperature sensor STS B3

6Buffer temperature sensor PTSO B4, top

7Sensor for power demand function B41

8Buffer temperature sensor PTSU B42, bottom

DHW heating

wP Multi mode heating water buffer cylinder with integral DHW heating

Vitocell 340-M

wQ DHW circulation pump CP (electrical connection on site)

wW Automatic thermostatic mixing valve

rP Heating circuit 1 with mixer

rQ Extension kit for one heating circuit with mixer with integral mixer motor

and

rW Flow temperature sensor heating circuit M1

rE Heating circuit pump, heating circuit M1

rR 3-way mixer

Divicon (with 3-way mixer and heating circuit pump)

tP Heating circuit 2 with mixer

tQ Extension kit for one heating circuit with mixer with integral mixer motor

and

tW Flow temperature sensor, heating circuit M2

tE Heating circuit pump, heating circuit M2

tR 3-way mixer

Divicon (with 3-way mixer and heating circuit pump)

Preparing for installation

Preparing for installation (cont.)

5618 294 GB

Installation

Pos. Designation

zP Heating circuit 3 with mixer (and plate heat exchanger for system sep-

aration)

zQ Extension kit for one heating circuit with mixer with integral mixer motor

and

zW Flow temperature sensor, heating circuit M3

zE Heating circuit pump, heating circuit M3

zR 3-way mixer

Divicon (with 3-way mixer and heating circuit pump)

zZ Plate heat exchanger for system separation

Accessories (optional)

uP Vitocom 100, type GSM

uQ Central fault message

no pos.

no.

Wireless repeater for wireless remote control

no pos.

no.

230 V∼ extension

Installation of the Vitotwin 300-W with

the supplied installation aid:

Installation aid installation

instructions

Preparing for installation

Preparing for installation (cont.)

5618 294 GB

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