Viessmann Vitotronic 100 GC1 Leitfaden

VITOTRONIC 100, GC1

Operating Instructions

and User’s Information Manual

Vitotronic 100, GC1 Series

Digital boiler control unit

Certified as a component part

of Viessmann boilers only

Read and save these instructions

for future reference.

IMPORTANT

Please file in Service Binder

5351 339 v1 1 05/2012

Introductory information

For your safety

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

If you smell as

Don’t smoke! Don’t use naked

flames or cause sparks (e g by

switching lights or electrical

appliances on and off)

Open windows and doors

Close the gas shut-off valve

Inform your heating engineers/service

contractors from outside the building

Observe the safety regulations of

your gas supply company (see gas

meter) and those of your heating

engineers (see start-up or instruction

report)

In emer encies

Immediately switch off the power

supply, e g at the separate fuse or

power supply disconnect switch

(unless there is a smell of gas)

Close the shut-off valves in the oil

pipes or close the gas shut-off valve,

whichever applicable

Use suitable extinguishers in the

event of fire

Work on the equipment

Installation, initial start-up,

maintenance and repairs must be

carried out by a competent person

(heating engineer/service contractor)

Before work is undertaken on the

equipment/heating system, switch

off the power supply voltage (e g at

the separate fuse or power supply

electrical isolator switch) and take

steps to prevent it from being

switched on again

Gas-fired systems: Also close the

gas shut-off valve and make secure

to prevent unauthorized use

Installation of additional components

The installation of additional

components which have not been

tested together with the boiler can

adversely affect the function and

performance of the boiler

Our warranty does not cover and we

accept no liability for damage

attributable to the installation of such

components

Boiler room conditions

Do not use a room in which the

air is polluted by halogenated

hydrocarbons (e g as contained

in aerosols, paints, solvents and

cleaning agents)

Do not use a room subject to high

levels of dust

Do not use a room subject to

permanently high humidity

The room should be frost-protected

Max 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 in

single-boiler systems,

multi-boiler systems in conjunction with Vitocontrol-S, VD2/CT3/CM2

multi-boiler systems with an external master control

Multi-boiler system with external master control

Please observe the instructions marked by this header in this

document as well the instructions for the external master control

Multi-boiler system in conjunction with Vitocontrol-S, VD2/CT3/CM2

For this system type you need only consult the operating

instructions for the Vitocontrol-S, VD2/CT3/CM2 These contain all the

operating steps for the Vitotronic 100, GC1, too

5351 339 v1 1

Multi-

boiler

system

Multi-

boiler

system

Index

Page

Useful tips

Introductory information

For 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 uide

Switchin on and off

Starting up the boiler 7

Shutting down the boiler 7

Settin s

Changing the boiler water temperature 9

Changing the domestic hot water temperature 10

Scannin

Scanning temperatures and operating status information 11

Information

Troubleshootin uide

Diagnosis and correction 12

with single-boiler systems 13

with multi-boiler systems 15

Servicin /cleanin instructions and note on disposal

of unwanted equipment 17

Alphabetical index 18

5351 339 v1 1

Ready for operation

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.

Settin s and scans possible on the Vitotronic 100 used in

sin le-boiler

systems

multi-boiler

systems

Heating programs

Central heating and domestic

hot water

Yes Yes

Domestic hot water only Yes No

Standby operation Yes Yes

Change the boiler water

temperature

Yes No

Change the domestic hot water

temperature

Yes No

Scan temperatures and

operating status information

Yes Yes

Display fault codes Yes Yes

5351 339 v1 1

Ready for operation

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)

wwithout 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 settin s

Press this button to reset all altered va-

lues to their factory settings Please

note that all altered values are reset to

the factory settings

Flashin data

Data flashing in the display window

means that new settings can be

entered

Other display symbols

(These are not displayed continuously,

but appear according to system type

and operating status)

Digital display of the correspon-

ding value

°C Unit of measurement for tem-

perature values

hUnit of measurement for display

of burner hours run

UFault message

rCentral heating ON

rp Displayed when output sÖ is

activated

ABurner ON

wDomestic hot water heating

released

wp 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

5351 339 v1 1

TUV

Ready for operation

Selectin the heatin pro ram (winter, summer)

In a multi-boiler system

the 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

hen pressed, the corresponding

button is illuminated.

Central heatin and domestic hot water

Central heating

Domestic 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 heating

Domestic 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 heating

No domestic hot water supply

Freeze-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.

5351 339 v1 1

Multi-

boiler

system

Switching on and off

Startin up the heatin 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 heating

system on the manometer

If the needle is below the red

marker, the system pressure is too

low – in which case add more water

or contact your heating contractor

2. Open the shut-off valves in the oil

pipes (at the boiler) or open the gas

shut-off valve, whichever applicable

3. Switch on the power supply voltage,

e g at the separate fuse or a power

supply disconnect switch

4. Switch on the heating system on/off

switch ”8”; the operating status is

indicated by the green lamp and,

after a short time, the boiler

temperature appears in the display

window

The boiler is now ready for operation.

5351 339 v1 1

Multi-

boiler

system

Switching on and off

Shuttin down the heatin 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.

e 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/off

switch ”8”

The green lamp goes out The power

supply to the boiler is now switched

off

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 oil

pipes (at the boiler) or close the gas

shut-off valve, whichever applicable

5351 339 v1 1

Multi-

boiler

system

Settings

Chan in 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.

°C

__...60

1. tr Press tr; the previous

boiler water temperature

setting flashes in the

display window

2. / Press the / button

until the required

temperature value appears

3. Confirm by pressing ;

the temperature value stops

flashing and is stored The

display changes and shows

the boiler temperature

5351 339 v1 1

Multi-

boiler

system

Settings

Chan in the domestic hot water temperature

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

controlling a DH tank.

The button is without function.

°C

__...50

1. Press ; the previous

domestic hot water

temperature setting flashes

in the display window

2. / Press the / button until

the required temperature

value appears

3. Confirm by pressing ; the

temperature value stops

flashing and is stored

The display changes and

shows the boiler

temperature

5351 339 v1 1

Multi-

boiler

system

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