Viessmann VITOTRONIC 100 Guida rapida

VIESMANN

Installation and service

instructions

for contractors

Vitotronic 100

Type KC2

Electronic boiler control unit

For applicability, see the last page

VITOTRONIC 100

5862 698 GB 02/2005 Please keep safe.

Please follow these safety instructions closely to prevent accidents and

material 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

environmental pollution.

Note

Details identified by the word "Note"

contain 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 fit-

ter.

&Work on electrical equipment must

only be carried out by a qualified

electrician.

&The system must be commissioned

by the system installer or a qualified

person authorised by the installer.

Regulations

Observe the following when working

on this system

&all legal instructions regarding the

prevention of accidents,

&all legal instructions regarding

environmental 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.

If you smell gas

Danger

Escaping gas can lead to

explosions which may result in

serious injury.

&Never smoke. Prevent naked

flames and sparks. Never

switch lights or electrical

appliances 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

building.

&Shut off the electricity supply

to the building from a safe

place (outside the building).

If you smell flue gas

Danger

Flue gas can lead to life-threa-

tening poisoning.

&Shut down the heating sys-

tem.

&Ventilate the boiler room.

&Close all doors leading to the

living space.

Safety instructions

5862 698 GB

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

supply 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

unauthorised reconnection.

!Please note

Electronic modules can be

damaged 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

fulfil a safety function can com-

promise 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

compromise its function. Instal-

ling non-authorised compo-

nents and non-approved

modifications/conversion can

compromise safety and may

invalidate our warranty.

For replacements, use only ori-

ginal spare parts from

Viessmann or those which are

approved by Viessmann.

Safety instructions (cont.)

Safety instructions

5862 698 GB

Installation instructions

Preparing for installation

Heating system design................................................................................ 6

Installation sequence

Summary of electrical connections.............................................................. 7

Inserting cables and applying strain relief.................................................... 8

Changing the high limit safety cut-out setting (if required) ............................ 9

Changing the control thermostat setting (if required).................................... 10

Inserting the boiler coding card ................................................................... 12

Low voltage connections............................................................................. 13

Pump connection........................................................................................ 13

External connection to plug X12.................................................................. 15

Burner connection ...................................................................................... 15

Power supply.............................................................................................. 17

Fitting the top part of the control unit ........................................................... 19

Opening the control unit .............................................................................. 20

Service instructions

Commissioning, inspection, maintenance............................................... 20

Commissioning

Display and operating controls .................................................................... 21

Testing the high limit safety cut-out ............................................................. 22

Matching up coding addresses.................................................................... 22

Checking outputs (actuators) and sensors................................................... 22

Service scans

Service level summary ............................................................................... 24

Brief scans ................................................................................................. 24

Operating conditions................................................................................... 25

Troubleshooting

Checking and acknowledging faults ............................................................ 27

Calling up fault codes from the fault memory (fault history) .......................... 29

Faults that are not displayed at the programming unit .................................. 30

Function description

Boiler water temperature control ................................................................. 32

Heating circuit control ................................................................................. 33

Cylinder temperature control....................................................................... 34

Index

5862 698 GB

Coding

Calling up coding levels .............................................................................. 37

Resetting codes to the delivered condition .................................................. 37

Coding summary......................................................................................... 37

Burner switching hysteresis ........................................................................ 41

Designs

Connection and wiring diagram ................................................................... 43

Components

Room thermostat Vitotrol 100, type UTD ..................................................... 45

Boiler coding card....................................................................................... 45

Vitoair draught stabiliser ............................................................................. 46

Components from the parts list.................................................................... 47

Parts lists .................................................................................................. 52

Specification............................................................................................. 55

Settings and equipment............................................................................ 56

Keyword index .......................................................................................... 58

Index (cont.)

Index

5862 698 GB

System version

One directly connected heating circuit without mixer

ABoiler with Vitotronic 100

BDHW cylinder

CHeating circuit without mixer

Plug

§Boiler water temperature sensor

%Cylinder temperature sensor

sÖ Heating circuit pump (acces-

sories)

sA Cylinder primary pump (acces-

sories)

fÖ Power supply (230 V/50 Hz)

fA Burner stage 1

lÖ Burner stage 2

a-D Room thermostat Vitotrol 100

(type UTD) (accessories)

a:A Two-stage burner extension

Required coding

02:1 for two-stage burner operation

(requires the two-stage burner extension)

Automatic changeover

00:2 with DHW cylinder

Heating system design

Preparing for installation

5862 698 GB

Plug 230 V~

sÖ Heating circuit pump (acces-

sories)

sA Cylinder primary pump (acces-

sories)

fÖ Power supply

fA Burner stage 1

X12 External burner start (stage 1)

Low voltage plugs

§Boiler water temperature sensor

%Cylinder temperature sensor

a-D Room thermostat Vitotrol 100

(type UTD) (accessories)

a:A Two-stage burner extension

When connecting external switching

contacts or components to the low

voltage circuit of the control unit,

please observe the safety require-

ments of protection class II, i.e.

8.0 mm air gap/creep path or 2.0 mm

insulation thickness towards 'live'

components.

Ensure a safe electrical separation for

all on-site components (incl. PC/lap-

tops) to conform to EN 60 335 or

IEC 65.

Summary of electrical connections

Installation sequence

5862 698 GB

Installation

Note

Blank off unnecessary knockouts in

the lower part of the control unit with

cable grommets (not cut out).

Inserting cables and applying strain relief

Installation sequence

5862 698 GB

Adjustment to 100 °C (EGO and JUMO)

The high limit safety cut-out is set to 110 °C in the delivered condition.

Note

This EGO setting change is irreversible!

When adjusting the temperature to 100 °C, do not adjust the control thermostat

above 75 °C.

AEGO slotted screw BJUMO slotted screw

Conversion to 100 °C at T&G

The high limit safety cut-out is set to 110 °C in the delivered condition.

Changing the high limit safety cut-out setting (if required)

Installation sequence

5862 698 GB

Installation

Note

When adjusting the temperature to 100 °C, do not adjust the control thermostat

above 75 °C.

Changing the control thermostat setting (if required)

Adjustment to 87 °C/ 95 °C

The control thermostat is supplied with a factory setting of 75 °C.

Note

Never set the control thermostat higher than 75 °C if the high limit safety cut-out

has been changed to 100 °C.

Changing the high limit safety cut-out setting (if . . . (cont.)

Installation sequence

5862 698 GB

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