Vitotronic 100-Gc1 Oi

VITOTRONIC 100, GC1

Operating Instructions

and Users Information Manual

Vitotronic 100, GC1 Series

Digital boiler control unit

Certified as a component part

of Viessmann boilers only

Read and save these instructionsfor future reference.

IMPORTANT

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5351 339 v1.1 05/2012

Introductory information

2

For your safety

Please follow these safety instructions closely to avoid the risk of injury to persons and damage to property.

If you smell gas

Dont smoke! Dont use nakedflames or cause sparks (e.g. byswitching lights or electricalappliances on and off)

Open windows and doorsClose the gas shut-off valve Inform your heating engineers/service

contractors from outside the buildingObserve the safety regulations of

your gas supply company (see gasmeter) and those of your heatingengineers (see start-up or instructionreport).

In emergencies

Immediately switch off the powersupply, e.g. at the separate fuse orpower supply disconnect switch(unless there is a smell of gas).

Close the shut-off valves in the oilpipes or close the gas shut-off valve,whichever applicable.

Use suitable extinguishers in theevent of fire.

Work on the equipment

Installation, initial start-up,maintenance and repairs must becarried out by a competent person(heating engineer/service contractor).

Before work is undertaken on theequipment/heating system, switchoff the power supply voltage (e.g. atthe separate fuse or power supplyelectrical isolator switch) and takesteps to prevent it from beingswitched on again.

Gas-fired systems: Also close thegas shut-off valve and make secureto prevent unauthorized use.

Installation of additional components

The installation of additionalcomponents which have not beentested together with the boiler canadversely affect the function andperformance of the boiler.Our warranty does not cover and weaccept no liability for damageattributable to the installation of suchcomponents.

Boiler room conditions

Do not use a room in which theair is polluted by halogenatedhydrocarbons (e.g. as containedin aerosols, paints, solvents andcleaning agents)

Do not use a room subject to highlevels of dust

Do not use a room subject topermanently high humidity

The room should be frost-protectedMax. ambient temperature

35 C / 95 F.Provide good ventilation and do

not close or obstruct vents(if installed).

This symbol indicates a

reference to other

instructions which must

be observed.

This header denotes

special instructions which

apply to the use of the

Vitotronic 100 in a

multi-boiler system.

Notes on applicability

The Vitotronic 100, GC1, can be used insingle-boiler systems,multi-boiler systems in conjunction with Vitocontrol-S, VD2/CT3/CM2

ormulti-boiler systems with an external master control.

Multi-boiler system with external master control

Please observe the instructions marked by this header in thisdocument as well the instructions for the external master control.

Multi-boiler system in conjunction with Vitocontrol-S, VD2/CT3/CM2For this system type you need only consult the operatinginstructions for the Vitocontrol-S, VD2/CT3/CM2. These contain all theoperating steps for the Vitotronic 100, GC1, too.

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Index

3

Page

Useful tips Introductory informationFor your safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Notes on applicability 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Instructions in brief Ready for operation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Overview of controls and indicators 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Selecting the heating program (winter, summer) 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reference guide Switching on and offStarting up the boiler 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Shutting down the boiler 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Settings

Changing the boiler water temperature 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Changing the domestic hot water temperature 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scanning

Scanning temperatures and operating status information 11. . . . . . . . . . . . . . . . .

Information Troubleshooting guideDiagnosis and correction 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .with single-boiler systems 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .with multi-boiler systems 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Servicing/cleaning instructions and note on disposal

of unwanted equipment 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alphabetical index 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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4

The main controls

You can carry out all the settings on your heating system centrally on the

control unit.

The control unit is behind the hinged cover. The hinged cover is opened by

pulling the top gently downwards towards you.

You must close the hinged cover again after use.

Settings and scans possible on the Vitotronic 100 used in

single-boiler

systems

multi-boiler

systems

Heating programs

Central heating and domestichot water

Yes Yes

Domestic hot water only Yes No

Standby operation Yes Yes

Change the boiler watertemperature

Yes No

Change the domestic hot watertemperature

Yes No

Scan temperatures andoperating status information

Yes Yes

Display fault codes Yes Yes

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Overview of controls and indicators

Manual override (page 13)

Changing the boiler water temperature

(page 9)

(without function in multi-boiler system)

Changing the domestic hot water

temperature (page 10)

(without function in multi-boiler system)

Value selector buttons

Information (page 11)

Confirmation button

Factory settings (see below)

Display window

Heating program selector buttons (page 6)

w without function in multi-boiler system

Adjustable high limit

Manual reset fixed high limit

Power on/off switch (page 7)

Fuse F1, F2

TUV (for service purposes only)

Operating status indicator (green) (page 7)

Fault indicator (red) (page 12)

Factory settings

Press this button to reset all altered va-lues to their factory settings. Pleasenote that all altered values are reset tothe factory settings.

Flashing data

Data flashing in the display windowmeans that new settings can beentered.

Other display symbols

(These are not displayed continuously,but appear according to system typeand operating status)8 Digital display of the correspon-

ding valueC Unit of measurement for tem-

perature valuesh Unit of measurement for display

of burner hours runU Fault messager Central heating ONrp Displayed when output s is

activated

A Burner ONw Domestic hot water heating

releasedwp DHW pump (circulation pump for

heating the DHW tank) ON| Scan hours run

1st stage burner|| Scan hours run

2nd stage burner||| Scan number of burner starts

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6

Selecting the heating program (winter, summer)

In a multi-boiler systemthe button is without function.domestic hot water heating can only be set on the master control.

Select the required heating program

with the , or button.

When pressed, the corresponding

button is illuminated.

Central heating and domestic hot water

Central heatingDomestic hot water supply (if a DHW

tank is installed)Freeze-up protection of the boiler and

the DHW tank

Example

For the winter and transitionary

periods.

Domestic hot water only

No central heatingDomestic hot water supply (if a DHW

tank is installed)Freeze-up protection of the boiler and

the DHW tank

Example

For the summer.

Standby operation

No central heatingNo domestic hot water supplyFreeze-up protection of the boiler and

the DHW tank

Please note:

The circulation pumps are

switched on for a short time

every 24 hours to prevent them

from seizing up.

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Switching on and off

7

Starting up the heating system

The initial start-up and matching of the control unit to local conditions and

the structural characteristics of the building must be carried out by your

heating contractor.

In a multi-boiler system, only the Vitotronic 100 and the

corresponding boiler are started up when the following steps are

carried out.

1. Check the pressure of the heatingsystem on the manometer.If the needle is below the redmarker, the system pressure is toolow in which case add more wateror contact your heating contractor.

2.Open the shut-off valves in the oilpipes (at the boiler) or open the gasshut-off valve, whichever applicable.

3. Switch on the power supply voltage,e.g. at the separate fuse or a powersupply disconnect switch.

4. Switch on the heating system on/offswitch 8; the operating status isindicated by the green lamp and,after a short time, the boilertemperature appears in the displaywindow.

The boiler is now ready for operation.

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Switching on and off

8

Shutting down the heating system

In a multi-boiler system, only the corresponding boiler can be

switched off with the Vitotronic 100. If the complete boiler system

is to be switched off, it is necessary to switch off the master

control and the power supply power supply to the heating system

as well.

If you do not want to use the boiler temporarily, select standby operation

(see page 6).

If you do not want to use the boiler for a long period (several months), you

should shut it down.

We advise you to contact your heating contractor before shutting down the

boiler for long periods. Your heating contractor will take any necessary action,

e.g. for freeze-up protection of the system or to safeguard the heat exchange

surfaces.

1. Switch off the heating system on/offswitch 8.The green lamp goes out. The powersupply to the boiler is now switchedoff.There is no freeze-up protection of

the boiler and DHW tank.

Please note:

The settings of the control unit

remain intact.

2.Close the shut-off valves in the oilpipes (at the boiler) or close the gasshut-off valve, whichever applicable.

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Settings

9

Changing the boiler water temperature

In a multi-boiler system, the tr button (for setting the boiler water

temperature) is without function.

If the button is nevertheless pressed, the boiler water temperature

continues to be displayed in the display window.

60 C__...60

r

1. tr Press tr; the previousboiler water temperaturesetting flashes in thedisplay window.

2. / Press the / buttonuntil the requiredtemperature value appears.

3. Confirm by pressing ;the temperature value stopsflashing and is stored. Thedisplay changes and showsthe boiler temperature.

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Changing the domestic hot water temperature

In a multi-boiler system, the Vitotronic 100 cannot be used for

controlling a DHW tank.

The button is without function.

60 C__...50

w

1. Press ; the previousdomestic hot watertemperature setting flashesin the display window.

2. / Press the / button untilthe required temperaturevalue appears.

3. Confirm by pressing ; thetemperature value stopsflashing and is stored.The display changes andshows the boilertemperature.

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Scanning

11

Scanning temperatures and operating status information

You can scan various actual temperatures and operating status information depend-

ing on the system components connected:

Data

displayed

Meaning Please note

3__65.C Boiler water temperature

5__50.C Domestic hot watertemperature(1st DHW tank temperaturesensor)

Only displayed if DHW tanktemperature sensor connected

5o_45.C Domestic hot watertemperature(2nd DHW tank temperaturesensor)

Only displayed if 2nd DHW tanktemperature sensor connected

6__55.C Return temperature at aJA(1st return temperaturesensor)

Only displayed if temperaturesensor of Therm-Controlortemperature sensor T1connected

8_190.C Flue gas temperature Only displayed if flue gastemperature sensor connected

9__60.C Return temperature at aJB(2nd return temperaturesensor)

Only displayed if temperaturesensor T2 connected

|

03572.hBurner hours run1st stage

The hours run can be reset to0 by pressing D.The hours run displayed areapproximate values only.

||

00572.hBurner hours run2nd stage

The hours run can be reset to0 by pressing D.The hours run displayed areapproximate values only.

|||

30417.Burner starts The number of burner starts can

be reset to 0 by pressing D.

60 C3_...65

1. Press ; the firsttemperature appears in thedisplay window.

2. / Press / to scan otherdata (see table above).

3. Press to exit thescanning mode.The display changes andshows the boilertemperature.

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Troubleshooting guide

12

Diagnosis and correction

If a fault occurs on the heating system, it will be indicated in the display

window and by the flashing red fault lamp (see page 5).

Using the scan facility, you can read off the fault code yourself and inform

your heating contractor accordingly.

In a multi-boiler system, the Vitotronic 100 only displays those

faults which are applicable to it. Therefore you should always

check all the other control units in your heating system for faults too.

_1...38.U

1. / Press / to display theindividual fault codes ifseveral faults haveoccurred simultaneously.

2. Press to confirm;the display changes andshows the boilertemperature.

Please note:

The fault message will re-appear

on the following day if the fault

is not corrected in the meantime.

The red fault lamp continues to

flash until the fault has been

corrected.

To call up an acknowledged fault message

1. Press for approx.2 seconds.

The fault code is displayed.

2. / Press / to displaythe individual fault codesif several faults haveoccurred simultaneously.

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Diagnosis and correction with single-boiler systems

Fault Cause Remedy

Heating system does not start up Heating system switch 8 turnedto OFF on the control unit

Switch on

Electrical isolator switch, if installed,is switched off

Switch on electrical isolator switch

Fuse in the domestic power circuit orin the control unit has blown ortripped

Inform heating contractor

Burner does not switch on Heating program 9 is set (thecorresponding button is illuminated)

Set rw or w heating program(page 6)

Vitoair draught stabilizer defective(only on boilers with pressure jetburner)

Inform heating contractor.Change setting of Vitoair tomanual operation:Press in rotary knob A onmotor and turn fully beyondsetting 4.

A

Failure of motor-controlled flue gasdamper (only on gas boilers withatmospheric burner)

Inform heating contractor.Change setting of motor-controlledflue gas damper to manual operation:Press in rotary knob A on motor andturn fully beyond setting 4.

A

Fault on control unit After consulting your heatingcontractor, the boiler can be operatedtemporarily with constant boilerwater temperature by turning theemissions test switch S to h;leave cover open

No fuel Oil or LPGCheck fuel supply and re-order ifnecessary.Natural gas:Open gas-shut off valve or contactgas supply company if necessary.

The burner is operating, but no hotwater(only on systems with domestichot water tank)

Control unit incorrectly programmedor set

Check domestic hot watertemperature and correct ifnecessary (see page 10)(only on systems with domestic

hot water tank) DHW tank temperature sensor orcirculation pump for heating theDHW tank defective


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Diagnosis and correction with single-boiler systems (continued)

Fault Cause Remedy

Burner does not start; red faultindicator (see page 5) flashes on thecontrol unit and red fault lamp isilluminated on the burner

Faulty start of burner Make a new attempt to start bypressing the reset button on the front of the burner hood

with pressure jet burners, on the front panel of the boiler

with atmospheric burners.If the burner still fails to operateafter pressing the reset button,check the points stated in thesection headed Starting up theheating system and then press thereset button again.If the burner still fails to switch on,contact your heating contractor.

The rooms are cold even though theburner is operating

Heating program w or 9 is set(corresponding button is illuminated)

Set heating program rw(page 6)

Operation with domestic hot watertank only:Domestic hot water supply haspriority

Wait until the domestic hot watertank has heated up

The room temperature is not highenough with a low outdoortemperature


Check and, if necessary, correct thesettings for temperatures (page 9)and the heating program (page 6)

The rooms are cold during the day,but warm at night


Check and, if necessary, correct thesettings for temperatures (page 9)and the heating program (page 6)

Fault symbol U appears in thedisplay window with flashing faultcode

Fault on heating system Make a note of the fault code(page 12) and inform your heatingcontractor

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Diagnosis and correction with multi-boiler systems

Fault Cause Remedy

The boiler does not start up Heating system switch 8 turnedto OFF on the control unit

Switch on

Electrical isolator switch,if installed, is switched off

Switch on electrical isolator switch

Fuse in the domestic power circuit orin the control unit has blown ortripped


No request from the master control Check the settings on he mastercontrol

The burner does not switch on Heating program 9 is set (thecorresponding button is illuminated)

Set rw heating program(page 6)

Vitoair draught stabilizer defective(only on boilers with pressure jetburner)

Inform heating contractor.Change setting of Vitoair tomanual operation:Press in rotary knob A onmotor and turn fully beyondsetting 4.

A

Failure of motor-controlled flue gasdamper (only on gas boilers withatmospheric burner)

Inform heating contractor.Change setting of motor-controlledflue gas damper to manual operation:Press in rotary knob A on motorand turn fully beyond setting 4.

A

Fault on control unit After consulting your heating con-tractor, the boiler can be operatedtemporarily with constant boilerwater temperature by turning theemissions test switch S to h;leave cover open

No fuel Oil or LPG:Check fuel supply and re-order ifnecessary.Natural gas:Open gas-shut off valve or contactgas supply company if necessary.

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Diagnosis and correction with multi-boiler systems (continued)

Fault Cause Remedy

Burner does not start; red faultindicator (see page 5) flashes onthe control unit and red fault lampis illuminated on the burner

Faulty start of burner Make a new attempt to start bypressing the reset buttonon the front of the burner hood

with pressure jet burners,on the front panel of the boiler

with atmospheric burners.If the burner still fails to operateafter pressing the reset button,check the points stated in thesection headed Starting up theboiler and then press the reset but-ton again. If the burner still fails toswitch on, contact your heatingcontractor.

The rooms are cold even though theburner is operating

Heating program 9 is set(corresponding button is illuminated)

Set heating program rw(page 6)

Operation with domestic hot watertank only:Domestic hot water supply haspriority

Wait until the domestic hot watertank has heated up

Fault symbol U appears in the dis-play window with flashing fault code

Fault on boiler or heating system Make a note of the fault code(page 12) and inform your heatingcontractor

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Servicing instructions

17

Servicing/cleaning instructions and note on disposal of unwanted equipment

Servicing

Servicing of heating systems is requiredunder current heating system regula-tions and standards (DIN 4755, DIN4756 and DIN 1988-8).

Regular servicing of the heating systemwill ensure troublefree, energy-savingand environmentally friendly heating.We strongly advise you to arrange aservice contract with your heating con-tractor.

Operational checks

The following operational checksshould be carried out every month:Regularly check the pressure of the

system.Check correct operation of safety

valve.Check correct operation of control

equipment.Check all seals and re-seal if

necessary.Check the ventilation facilities of the

boiler room (see safety note on page2).

Check function of neutralizing unit.Check level of neutralizing agent.

Boiler

All boilers have to be cleaned at certainintervals as the flue gas temperatureand therefore the energy loss rise asthe level of contamination increases.

We recommend the use of a flue gassensor.The efficiency of the system will beimpaired if the flue gas temperatureis excessively high due to contamination of the boiler or incorrectadjustment of the burner. In this caseit may be necessary to clean theboiler or readjust the burner.

A built-in hours run meter measuresthe operating times of the burner.The longer the operating times, thelower the standby losses.

Cleaning

The equipment can be cleaned withdomestic cleaning agents availableon the market (do not use abrasivecleaning agents).

Note on disposal of unwanted

equipment

The unit contains an inbuilt,non-toxic battery.To safeguard the environment,please dispose of spent batteriesproperly via the appropriatecollection points.The battery should be removed bya competent person.

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Alphabetical index

18

Alphabetical index

A

Acknowledging fault messages, 12

B

Boiler room, 2Boiler water temperature, 9

C

Central heating and domestic hotwater, 6Changing the boiler water temperature,9Changing the domestic hot water tem-perature, 10

Cleaning, 17Controls, 4, 5

D

DHW pump, 5Diagnosis, 12Display window, 5Domestic hot water, 6Domestic hot water supply, 6, 10, 14

E

Emergencies, 2External control, 2

F

Factory setting, 5Fault display, 5Fault messages, 12Faults, 12Flue gas temperature, 17Freeze-up protection, 6, 8Fumes, 2

G

Gas shut-off valve, 2, 7

H

Heating system on/off switch, 5, 7

I

Index, 3Indicators, 5Initial start-up, 7

L

Lamps (LEDs), 5, 7

M

Main controls, 4Multi-boiler system, 2

N

Note on applicability, 2Notes on safety, 2

O

Operating status indicator, 5, 7

R

Re-starting the system, 7Retrieving fault messages, 12

S

Safety instructions, 2Scanning the domestic hot water tem-perature, 11Selecting the heating program, 6Service contract, 17Servicing, 17Shutting down the control unit, 8Shutting down the boiler, 8Shutting down the system, 8Single-boiler system, 2Smell of gas, 2Standby operation, 6, 8Starting up the boiler, 7Starting up the system, 7Summer operation, 6Switching off the system, 8Switching off the unit, 8Switching on the system, 7Switching on the unit, 7

T

Temperature settings, 9Troubleshooting, 12

W

Waste disposal, 17Winter operation, 6Work on the equipment, 2

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5351 339 v1.1

Viessmann Manufacturing Company Inc.750 McMurray RoadWaterloo, Ontario N2V 2G5 CanadaTel. (519) 885-6300 Fax (519) 885-0887www.viessmann.ca [email protected]

Viessmann Manufacturing Company (U.S.) Inc.45 Access RoadWarwick, Rhode Island 02886 USATel. (401) 732-0667 Fax (401) 732-0590www.viessmann-us.com [email protected]

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