Bosch Gaz 6000 W User manual

Operating instructions for the end customer
Gas boiler
Gaz 6000 W
8 716 473 216-00.3O
WBN 6000-30-H-E-N/L-S2400
8 716 473 217 (2017/09) en

2| Contents
Gaz 6000 W8 716 473 217 (2017/09)
Contents
1 Key to symbols and safety instructions . . . . . . . . . . . . . . . . . . . 2
1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Product details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 Preparing the appliance for use . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1 Overview of connections . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.2 Opening service valves . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.3 Check the central heating system pressure . . . . . . . . . . . 3
3.4 Top up the heating system . . . . . . . . . . . . . . . . . . . . . . . . 4
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.1 Overview of controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4.2 Switching the appliance on/off . . . . . . . . . . . . . . . . . . . . . 5
4.3 Setting the maximum flow temperature . . . . . . . . . . . . . . 5
4.4 Setting the heating control unit or room thermostat . . . . 5
4.5 Setting summer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.6 Setting frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.7 Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Energy saving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
8 Environmental protection / disposal . . . . . . . . . . . . . . . . . . . . . 7
1 Key to symbols and safety instructions
1.1 Key to symbols
Warnings
The following keywords are defined and can be used in this document:
•NOTICE indicates a situation that could result in damage to property
or equipment.
•CAUTION indicates a situation that could result in minor to medium
injury.
•WARNING indicates a situation that could result in severe injury or
death.
•DANGER indicates a situation that will result in severe injury or
death.
Important information
Additional symbols
1.2 General safety instructions
Instructions for the target group
These operating instructions are intended for the heating system user.
All instructions must be observed. Failure to comply with instructions
may result in material damage and personal injury, including possible
loss of life.
▶ Read and retain the operating instructions (heat source, heating
controller, etc.) prior to operation.
▶ Observe safety instructions and warnings.
Determined use
The product may only be used for the heating of central heating water
and for DHW heating in closed-loop DHW and heating systems.
Any other use is considered inappropriate. Any damage that may result
is excluded from liability.
If you smell gas
A gas leak could potentially cause an explosion. If you smell gas, observe
the following rules.
▶ Avoid producing flames or sparks:
– Do not smoke, do not use a lighter or strike matches.
– Do not operate any electrical switches or unplug any equipment.
– Do not use the telephone or ring doorbells.
▶ Turn off the gas supply at the main shut-off valve or at the gas meter.
▶ Open windows and doors.
▶ Warn your neighbours and leave the building.
▶ Prevent anyone from entering the building.
▶ Stay well away from the building: call the emergency services and the
gas supplier.
Risk to life from poisoning by flue gas
There is a risk to life from escaping flue gas. If flues are damaged or
leaking, observe the following rules.
▶ Switch off the heat source.
▶ Open windows and doors.
▶ If necessary, warn your neighbours and leave the building.
▶ Prevent anyone from entering the building.
▶ Notify an approved contractor.
▶ Have any defects rectified immediately.
Inspection and maintenance
If there is a lack of cleaning, inspection or maintenance, or if these are
carried out incorrectly, this may result in material damage and/or
personal injury, including possible loss of life.
▶ All work must be carried out by an approved contractor.
▶ Have any defects rectified immediately.
▶ Have the heating system inspected once a year by an approved
contractor, and have any required maintenance or cleaning work
carried out.
▶ Have the heat source cleaned at least every two years.
Warnings in this document are identified by a warning
triangle printed against a grey background.
Keywords at the start of a warning indicate the type and
seriousness of the ensuing risk if measures to prevent
the risk are not taken.
This symbol indicates important information where
there is no risk to people or property.
Symbol Explanation
▶ Step in an action sequence
Cross-reference to another part of the document
• List entry
– List entry (second level)
Table 1

Product details | 3
8 716 473 217 (2017/09)Gaz 6000 W
Conversion and repairs
Improper modifications to the heat source or other parts of the heating
system can result in personal injury and/or material damage.
▶ All work must be carried out by an approved contractor.
▶ Never remove the casing of the heat source.
▶ Never carry out any modifications to the heat source or to other parts
of the heating system.
▶ Never close the outlet of the pressure relief valves. Heating systems
with DHW cylinder: During heat-up, water can escape from the
pressure relief valve of the DHW cylinder.
Safety of electrical appliances for domestic use and
similar purposes
The following requirements apply in accordance with EN
60335-1 in order to prevent hazards from occurring when
using electrical appliances:
“This appliance can be used by children of 8 years and
older, as well as by people with reduced physical, sensory
or mental capabilities or lacking in experience and
knowledge, if they are supervised and have been given
instruction in the safe use of the appliance and understand
the resulting dangers. Children must not play with the
appliance. Cleaning and user maintenance must not be
performed by children without supervision.”
“If the power cable is damaged, it must be replaced by the
manufacturer, its customer service department or a
similarly qualified person, so that risks are avoided.”
2 Product details
WBN 6000-30-H-E-N/L-S2400 are appliances for central heating.
2.1 Standard delivery
Fig. 1
[1] Wall-mounted gas boiler
[2] Fixing material
[3] Set of printed documents for the appliance
[4] Flue pipe
[5] Grommet
[6] Regulator( Only for NG appliance )
3 Preparing the appliance for use
3.1 Overview of connections
Fig. 2
[1] Drain hose
[2] Heating return valve (accessory)
[3] Cold water valve (accessory)
[4] Gas valve (closed) (accessory)
[5] Heating flow valve (accessory)
3.2 Opening service valves
▶ Push in the handle and turn it fully anti-clockwise (the gas tap is open
when the handle is in line with the flow).
Fig. 3
3.3 Check the central heating system pressure
The standard operating pressure is 1 - 2 bar.
Should a higher operating pressure be required, refer to your heating
contractor.
Fig. 4
1
3
4
5
6
2
8 716 473 216-01.2O
2
34
5
1
8 716 473 217-01.1O
8 716 473 217-02.2O
reset
press 5s
2.
1.
8 716 473 217-03.3O
2
31
4
bar
0

4| Operation
Gaz 6000 W8 716 473 217 (2017/09)
3.4 Top up the heating system
The filling unit is located at the bottom of the appliance between the
connection for the heating flow and the cold water connection.
Maximum pressure of 3 bar at maximum heating water temperature
must not be exceeded (safety valve will open).
Fig. 5
[1] Pressure gauge
▶ Open the fill valve and fill the heating system until a pressure between
1 and 2 bar is indicated on the pressure gauge.
▶ Close the fill valve.
4 Operation
4.1 Overview of controls
Fig. 6
[1] Standby key
[2] Burner operation
[3] Fault display/standby mode display
[4] Heating mode active
[5] Temperature display (in °C)
[6] Service mode
[7] key (mode)
[8] Return
[9] key
[10] Heating Temperature/Reset/”OK”
NOTICE: Damage to appliance due to cold water!
Stress cracks can occur on the hot heat exchanger when
the heating water is topped up.
▶ Only top up the heating water when the appliance is
cold.
8 716 473 217-04.3O
1
8 716 473 217-30.1O
10
9
7
8
43
25 6 1
reset

Operation | 5
8 716 473 217 (2017/09)Gaz 6000 W
4.2 Switching the appliance on/off
Switching on
▶ Start the appliance at the standby key.
The display shows the heating water flow temperature.
Switching off/standby mode
▶ Shut down the appliance at the standby key.
Only the warning symbol continues to be displayed.
Fig. 7
▶ If the appliance is to be switched off for a longer period of time:
observe correct frost protection procedures (chapter 4.6).
Power interruption
▶ Press and hold on (button to reset the appliance when a fault
code (eg.EA) flashes because of power interruption.
4.3 Setting the maximum flow temperature
The maximum flow temperature can be set between 40 °C and
approx. 82 °C. The current flow temperature is shown on the display.
▶ Press (temperature display with 1 Hz frequency flickering.
▶ Press or to set the required maximum flow temperature.
▶ After 3 times flickering, the setting temperature is saved
automatically, display goes back to central heating
The display shows the current flow temperature.
▶ Central heating active indicator(.
You can find typical maximum flow temperatures in tab. 2.
When the burner is active in heating mode, the (symbol and the
burner symbol appear on the display.
4.4 Setting the heating control unit or room thermostat
4.5 Setting summer mode
The heating circuit pump and consequently central heating are switched
off. Power supply for the heating control unit and timer are retained.
To set summer mode:
▶ Press (temperature display with 1 Hz frequency flickering.
▶ Keep pressing until “ - -” symbol appears on the display.
▶ After 3 times flicking of “ - -”, active summer mode.
The display shows central heating temperature.
▶ Summer mode start indicator .
Additional instructions are contained in the operating instructions for
the heating programmer.
4.6 Setting frost protection
Frost protection for the heating system:
Frost protection for the heating system is only ensured if the heating
circuit pump is operational and is pumping heating water through the
entire system.
▶ Leave the heating switched on.
▶ Set the maximum flow temperature to at least 40 °C
(Chapter 4.3).
-or- If you want to leave the appliance switched off:
▶ Ask your heating contractor to mix anti-freeze (see installation
instructions) into the heating water.
Appliance frost protection:
The appliance frost protection function switches the burner and heating
circuit pump on when the temperature falls below 5 °C. This prevents the
boiler freezing up.
▶ Activate summer mode (Chapter 4.5) or put the appliance in
standby mode (Chapter 4.2).
The appliance has an anti-seizing function which
prevents the heating circuit pump and the 3-way valve
seizing up following long periods of inactivity.
The anti-seizing function remains active during standby
mode.
When is set, heating mode is disabled
(summer mode).
Flow temperature Sample application
symbol appears Summer mode
Approx. 75 °C Radiator heating system
approx. 82 °C Convector heating system
Approx. 50 °C Underfloor heating system
Table 2 Maximum flow temperature
6 720 810 859-11.1O
Observe the operating instructions of the heating
controller/room thermostat. This shows you:
▶ how to adjust the room temperature,
▶ how to heat economically and save energy.
▶ The recommended room thermostats are the Bosch
OR30 or Bosch OR80.
NOTICE: Heating system at risk through frost. In summer
mode, only the appliance is protected against frost.
▶ Observe frost protection measures where there is a
risk of frost (Chapter 4.6).
For further information, see the heating controller
operating instructions.
NOTICE: Heating system at risk through frost. In
summer/standby mode, only the appliance is protected
against frost.

6| Energy saving tips
Gaz 6000 W8 716 473 217 (2017/09)
4.7 Displays
5 Energy saving tips
Economy mode
The appliance is designed in such a way that gas consumption and
environmental pollution is kept to a minimum and comfort is as high as
possible. The supply of gas to the burner is regulated in accordance with
the home's heat demand. If the heat demand is low, the appliance
continues to operate with a small flame. The contractor refers to this
process as continuous control. As a result of continuous control,
temperature fluctuations are kept low and heat is distributed evenly in
the rooms. This may mean that the appliance is in operation for a longer
period of time but actually consumes less gas than an appliance that is
constantly being switched on and off.
Inspection/Maintenance
To ensure that gas consumption and environmental impact (pollution,
etc.) remain as low as possible over an extended period of time, we
recommend that you take out an inspection/maintenance contract with
an authorised installer covering the annual inspection and servicing and
maintenance at other times as required.
Thermostatic valves
Fully open the thermostatic radiator valves in order to achieve the
required room temperature. You can only change the required room
temperature at the controller when the temperature is not reached after
an extended period of time.
Venting
Do not leave windows open for ventilation purposes as this will allow
heat to be discharged from the room without significantly improving the
air quality.
It is preferable to fully open the windows for a short period of time to air
the room completely and then shut them again to maintain temperature.
Circulation pump
If there is a circulation pump for hot water, use a timer programme to
control its operation according to the specific requirements (e.g.
morning, afternoon, evening).
6 Troubleshooting
All safety, modulation and control components are monitored by the
Heatronic system.
If a fault occurs during operation, the display shows the symbol and
possibly , and a fault code (e.g. EA) flashes.
If and appear:
▶ Press and hold down until the and symbols are no
longer displayed.
The appliance will start up again and the flow temperature will be
displayed.
If only appears:
▶ Switch the appliance first off and then on again by means of the
standby key.
▶ The appliance will start up again and the flow temperature will be
displayed.
If a fault persists:
▶ Contact your approved installer or Customer Service for assistance,
providing details of the fault and the appliance.
▶ For service and maintenance issues please contact the following
numbers:
– Australia :1300 30 70 37.
– New Zealand :0800 54 33 52.
Appliance details
If you need to call Customer Services, it is helpful if you have the precise
details of your appliance at hand.
Those details can be found on the identification plate or identification
sticker inside the control panel cover.
Gaz 6000 W (e.g.. WBN 6000-30-H-E-N/L-S2400).
...................................................................................................
Series number
...................................................................................................
Commissioning date:
...................................................................................................
System contractor:
...................................................................................................
Special
display
Description
Venting function enabled (approx. 2 minutes).
Summer mode (appliance frost protection)
e.g. EA Fault code (chapter 6)
only Standby
Table 3
An overview of the display indications can be found on
page 6.

Service | 7
8 716 473 217 (2017/09)Gaz 6000 W
7 Service
Inspection and service
The user is responsible for the safety and environmental compliance of
the heating system.
You should therefore arrange a maintenance and inspection contract
with an authorised contractor, covering an annual inspection and
demand-dependent maintenance. This guarantees you high efficiency
and environmentally compatible combustion.
For service and maintenance issues please contact the following
numbers:
Australia :1300 30 70 37.
New Zealand :0800 54 33 52.
Cleaning the casing
Wipe the casing with a damp cloth. Never use aggressive or corrosive
cleaning agents.
8 Environmental protection / disposal
Environmental protection is a key commitment of the Bosch Group.
Quality of products, efficiency and environmental protection are equally
important objectives for us. Environmental protection laws and
regulations are strictly adhered to.
To protect the environment, we use the best possible technology and
materials taking into account economic points of view.
Packaging
Where packaging is concerned, we participate in country-specific
recycling processes that ensure optimum recycling.
All of our packaging materials are environmentally compatible and can
be recycled.
Old appliances
Old appliances contain materials that must be recycled.
The relevant assemblies are easy to separate, and all plastics are
identified. In this way the individual assemblies can be easily sorted and
directed to recycling or disposal.