Viessmann Vitocrossal 100 Bedienungsanleitung

Operating instructions

for the system user

VIESMANN

Vitocrossal 100, type CI1 with Vitotronic 100 control unit, type GC7B for constant

temperature operation

VITOCROSSAL 100

5792 952 GB 2/2017 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 operating instructions are intended for heating

system users.

This appliance can also be operated by children 8

years and older, as well as by individuals with reduced

physical, sensory or mental faculties or those lacking

in experience and knowledge, provided such individu-

als are being supervised or have been instructed in the

safe use of this appliance and any risks arising from it.

!Please note

Supervise children in the proximity of the appli-

ance.

■Never permit children to play with the appli-

ance.

■Cleaning and maintenance must not be car-

ried out by unsupervised children.

Appliance connection

■The appliance may only be connected and commis-

sioned by authorised contractors.

■Only operate the appliance with suitable fuels.

■Observe the specified electrical connection require-

ments.

■Modifications to the existing installation may only be

carried out by authorised contractors.

Danger

Incorrectly executed work on the heating system

can lead to life threatening accidents.

■Work on gas installations must only be carried

out by a registered gas fitter.

■Work on electrical equipment must only be

carried out by a qualified electrician.

Work on the appliance

■All settings and work on the appliance must be car-

ried out as specified in these operating instructions.

Further work on the appliance may only be carried

out by authorised contractors.

■Never open the appliance.

■Never remove casings.

■Never change or remove attachments or fitted

accessories.

■Never open or retighten pipe connections.

Danger

Hot surfaces can cause burns.

■Never open the appliance.

■Never touch the hot surfaces of uninsulated

pipes, fittings or flue pipes.

Damage to the appliance

Danger

Damaged equipment poses a safety hazard.

Check the appliance for external damage. Never

start up a damaged appliance.

Safety instructions

For your safety

5792 952 GB

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 appli-

ances on or off.

■Close the gas shut-off valve.

■Open windows and doors.

■Evacuate any people from the danger zone.

■Notify your gas and power supply utility and

your local heating contractor from outside the

building.

■Have the power supply to the building shut off

from a safe place (outside the building).

If you smell flue gas

Danger

Flue gas can lead to life threatening poisoning.

■Shut down the heating system.

■Ventilate the installation site.

■Close all doors in the living space.

In case of fire

Danger

Fire presents a risk of burns and explosion.

■Shut down the heating system.

■Close the shut-off valves in the fuel supply

lines.

■Use a tested fire extinguisher, class ABC.

In case of water leaking from the appliance

Danger

Water leaking from the appliance poses an elec-

trocution hazard.

■Switch off the heating system at the external

isolation point (e.g. fuse box, domestic power

distribution unit).

■Notify your local heating contractor.

What to do if the heating system develops a fault

Danger

Fault messages point to faults in the heating

system. If faults are not rectified, they can have

life threatening consequences.

Never acknowledge fault messages several

times in quick succession. Inform your heating

contractor so the cause can be analysed and

the fault rectified.

Safety instructions

For your safety (cont.)

5792 952 GB

Installation room requirements

Danger

Sealed vents result in a lack of combustion air.

This leads to incomplete combustion and the

formation of life threatening carbon monoxide.

Never cover or close existing vents.

Never make any subsequent modifications to

the building characteristics that could affect safe

operation (e.g. cable/pipework routing, cladding

or partitions).

Danger

Easily flammable liquids and materials (e.g.

naphtha, solvents, cleaning agents, paints or

paper) can cause deflagration and fire.

Never store or use such materials in the installa-

tion room or in direct proximity to the heating

system.

!Please note

Incorrect ambient conditions can lead to heating

system damage and can put safe operation at

risk.

■Ensure ambient temperatures are above 0 °C

and below 35 °C.

■Prevent air contamination by halogenated

hydrocarbons (e.g. as contained in paints, sol-

vents or cleaning fluids) and excessive dust

(e.g. through grinding/polishing work).

■Avoid continuously high humidity levels (e.g.

through continuous drying of washing).

Extractors

The operation of appliances that extract air to the out-

side (cooker hoods, extractors, air conditioning units,

etc.) can create negative pressure. If the boiler is oper-

ated at the same time, this can lead to a reverse flow

of the flue gas.

Danger

The simultaneous operation of the boiler and

appliances that extract air to the outside can

result in life threatening poisoning due to

reverse flow of the flue gas.

Take suitable steps to ensure an adequate sup-

ply of combustion air. If necessary, contact your

heating contractor.

Auxiliary components, spare and wearing parts

!Please note

Components not tested with the heating system

may damage the system or affect its function.

Have all installation or replacement work carried

out exclusively by qualified contractors.

Safety instructions

For your safety (cont.)

5792 952 GB

1. Introductory information Intended use .......................................................................................... 6

Commissioning ...................................................................................... 6

Your system is preset at the factory ....................................................... 6

Terminology ........................................................................................... 6

Tips on saving energy ............................................................................ 7

2. Operation Controls ................................................................................................. 8

How to use the controls ......................................................................... 8

Symbols ................................................................................................. 8

3. Start-up/shutdown Switching on the heating system ........................................................... 10

Shutting down the heating system ......................................................... 10

■With frost protection monitoring .......................................................... 10

■Without frost protection monitoring (shutdown) .................................. 11

4. Central heating Required settings for central heating ..................................................... 12

Setting the heating flow temperature ..................................................... 12

Setting the operating program (central heating) .................................... 12

Switching off central heating .................................................................. 12

5. DHW heating Required settings (DHW heating) .......................................................... 13

Setting the DHW temperature ................................................................ 13

Setting the operating program (DHW heating) ...................................... 13

Switching off DHW heating .................................................................... 13

6. Further adjustments Setting the temperature unit (°C/°F) ...................................................... 14

Restoring factory settings ...................................................................... 14

7. Calling up information Scanning information and resetting values ............................................ 15

Scanning service messages .................................................................. 16

Scanning fault messages ....................................................................... 17

8. Multi boiler systems Special considerations for multi boiler systems ..................................... 18

9. Emissions test mode Starting emissions test mode ................................................................. 19

■Switching on emissions test mode ..................................................... 19

■Stopping emissions test mode ............................................................ 19

10. What to do if... Rooms are too cold ................................................................................ 20

Rooms are too hot ................................................................................. 20

There is no hot water ............................................................................. 20

The DHW is too hot ............................................................................... 21

"ã" flashes on the display ..................................................................... 21

"E" flashes on the display ..................................................................... 21

"ë" flashes on the display ..................................................................... 21

"- - EP - -" flashes on the display ........................................................... 21

11. Maintenance ................................................................................................................ 22

12. Keyword index ................................................................................................................ 24

Index

5792 952 GB

The appliance is intended solely for installation and

operation in sealed unvented heating systems that

comply with EN 12828, with due attention paid to the

associated installation, service and operating instruc-

tions. It is only designed for heating up heating water

that is of potable water quality.

Intended use presupposes that a fixed installation in

conjunction with permissible, system-specific compo-

nents has been carried out.

Commercial or industrial usage for a purpose other

than heating the building or DHW shall be deemed

inappropriate.

Any usage beyond this must be approved by the man-

ufacturer in each individual case.

Incorrect usage or operation of the appliance (e.g. the

appliance being opened by the system user) is prohibi-

ted and will result in an exclusion of liability. Incorrect

usage also occurs if the components in the heating

system are modified from their intended use (e.g. if the

flue gas and ventilation air paths are sealed).

Commissioning

Commissioning and matching the control unit to local

conditions and building characteristics, as well as

instructing the user in the operation of the system,

must be carried out by your heating contractor.

As the user of new combustion equipment, you may be

obliged to notify your local flue gas inspector of the

installation [check local regulations]. Your local flue gas

inspector will also inform you [where appropriate]

about work that may have to be carried out on your

combustion equipment (e.g. regular checks, cleaning).

Your system is preset at the factory

The control unit is preset at the factory to " " for

central heating and DHW heating.

Your heating system is therefore ready for operation:

Central heating

■The rooms are heated in accordance with the set-

tings on your control unit and room temperature con-

trol unit.

■Your heating contractor can make further settings for

you during commissioning.

You can change all settings individually at any time

to suit your requirements (see chapter "Central heat-

ing").

DHW heating

■DHW is heated to 50 °C.

■Your heating contractor can make further settings for

you during commissioning.

You can change all settings individually at any time

to suit your requirements (see chapter "DHW heat-

ing").

Frost protection

■Your boiler and DHW cylinder are protected against

frost.

Power failure

■All data is retained if there is a power failure.

Terminology

To provide you with a better understanding of the func-

tions of your control unit, the appendix contains chap-

ter "Terminology" (see page 23).

Introductory information

Intended use

5792 952 GB

Use the adjustment options on the control unit and the

room temperature control unit:

■Do not overheat your rooms; you can save up to 6 %

on your heating bills for every degree you reduce

your room temperature.

Set your room temperature no higher than 20 °C

(see page 12).

■Do not set your DHW temperature too high (see

page 13).

■Select the operating program that meets your current

requirements:

–In the summer, if you do not want to heat any

rooms but do need DHW, select the " " operating

program (see page 13).

–If you do not want to heat any rooms and require

no DHW for a prolonged period of time, select the

" " operating program (see page 10).

Further recommendations:

■Correct ventilation/airing.

Fully open windows for a short time and close the

thermostatic valves while airing.

■Close roller shutters (if installed) at dusk.

■Set thermostatic valves correctly.

■Never cover radiators or thermostatic valves.

■Controlled use of DHW: A shower generally uses

less energy than a full bath.

Introductory information

Tips on saving energy

5792 952 GB

You can change the settings for your heating system

centrally at the programming unit.

If you have a room temperature control unit installed in

your rooms, you can also change the settings on the

room temperature control unit.

Room temperature controller operating instruc-

tions

4 8°C

s A

Fig. 1

To take one step back in the menu.

Cursor keys

To scroll through the menu or adjust values

OK To confirm your selection or setting.

No function

Enables you to call up the menu for settings and

scanning.

How to use the controls

Default display

4 8°C

Fig. 2

Press . This takes you to the menu for settings and

scanning.

Symbols

These symbols are not always displayed, but appear

subject to the system version and the operating condi-

tion. Flashing displays indicate that modifications can

be made.

Central heating

DHW heating

Information

Emissions test mode

Additional settings

Operating program

Frost protection monitoring (standby mode)

DHW heating

Central heating and DHW heating

Messages

Service message

ýThe service interval has expired

Fault message

Burner fault message

Displays

Temperature

Frost protection monitoring

Operation

Controls

5792 952 GB

Central heating

Boiler circuit pump running

Cylinder loading pump running

In conjunction with a solar thermal system:

Solar circuit pump running

Burner running

Standard factory setting

Operation

Symbols (cont.)

5792 952 GB

C D

4 8°C

s A

Fig. 3

AFault indicator (red)

BON indicator (green)

CReset button

DON/OFF switch

1. Check the heating system pressure at the

pressure gauge. The system pressure is too low if

the indicator points to the area below the red field.

In this case, top up with water or notify your heat-

ing contractor.

Ask your heating contractor about the follow-

ing:

■Level of the required system pressure

■Position of the following components:

–Pressure gauge

–Shut-off valve

–Gas shut-off valve

–Vents

2. For open flue operation:

Check that the vents in the installation room are

open and unrestricted.

Note

With open flue operation, the combustion air is

drawn from the installation room.

3. Open the gas shut-off valve.

Note

Ask your heating contractor to explain the position-

ing and handling of these components.

4. Switch ON the power supply, e.g. at a separate

MCB/fuse or a mains isolator.

5. Turn on the ON/OFF switch " ".

After a short while, the standard display appears

and the green ON indicator illuminates. Your heat-

ing system and room temperature control unit are

now ready for operation.

Shutting down the heating system

With frost protection monitoring

Select operating program " " for frost protection moni-

toring (standby mode).

Press the following keys:

1. for settings; " " flashes.

2. OK to confirm; " " flashes.

3. OK to confirm; " " flashes.

4. until " " flashes.

5. OK to confirm; frost protection is activated.

■No central heating.

■No DHW heating.

■Frost protection for the boiler and the DHW cylinder

is enabled.

Note

The circulation pumps are briefly started every 24

hours to prevent them from seizing up.

Ending operating program " "

Select another operating program.

Start-up/shutdown

Switching on the heating system

5792 952 GB

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