Bosch 30" Single Wall Oven User manual

Users Instructions and
Customer Care Guide
R 30/35/40 HE combi plus Condensing boiler
6 720 610 598 - 00.2O
ZWBR 7-30 R 30 GC-Number: 47 311 79
ZWBR 11-35 R 35 GC-Number: 47 311 80
ZWBR 11-40 R 40 GC-Number: 47 311 81
6 720 610 598 GB (03.11) TD

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Contents
6 720 610 598 GB (03.11)
Contents
Excellence comes as standard 4
Safety precautions 5
1General notes 7
2Controls 11
3Operatingthe Appliance 12
3.1 Preparation 12
3.2 Switching the Appliance On/Off 14
3.3 Switching on the Central Heating 15
3.4 Controlling Central Heating 15
3.5Combination Boilers: Setting Hot Water Temperature 16
3.6System boiler with Storage Tank 17
3.7Summer Mode, Hot Water Only (Combi Appliances) 18
3.8 Frost protection (Combi Appliances) 19
3.9 Fault Condition 19
4Text Display 20
4.1 General Description 20
4.2 Programming 20
4.2.1 Deleting a setting 23
4.2.2Resetting all parameters to their original settings 23
4.3 Menu structure 24
4.4Setting the time/day 25
4.4.1Setting the time and day 25
4.4.2 Holidays 25
4.5 Heating 27

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Contents
6 720 610 598 GB (03.11) TD
4.5.1 Heating program 27
4.5.2 Setting the Economy temperature (if TR2 is connected) 28
4.5.3 Manual operating mode (if TR2 is not connected) 29
4.6 Hot water 30
4.6.1 Hot water program 31
4.6.2 Hot water immediately (System models) 31
4.7 i Info 32
4.8Settings 33
4.8.1 Heating (if TR 2 is connected) 33
4.8.2 Hot Water (Storage Tank, System boiler models only) 33
4.8.3 Service 33
4.9 Individual timer programmes 36
5Faultfinding 37
6Tipsonsaving energy 38
7General Information 39
8Maintaining your appliance 40
9Service 40
10 Fault or breakdown 41
11 Your guarantee 42
12 Guarantee registration 43
13 Operating Instructions Quick Reference 44

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Excellence comes as standard
6 720 610 598 GB (03.11)
Excellence comes as standard
Thank you for purchasing an R 30/R 35/R 40 condensing appli-
ance.
The R 30/R 35/R 40 Series has been developed by the Heat Sys-
tems Ltd. Group and the strictest quality control standards are
demanded throughout every stage of production.
Indeed, the Heat Systems Ltd. Group have led the field in innova-
tive appliance design and performance for many years.
The result is that your new R 30/R 35/R 40appliance offers you
the very best of everything – quality, efficiency, economical run-
ning costs, proven reliability and value for money.
What’s more, you also have the assurance of our no nonsense
2yearparts and labour guarantee.
And it’s backed up by Worcester Heat Systems Ltd. - Offering a
complete maintenance scheme to keep your boiler operating at
peak condition and efficiency.
No wonder that more and more people are agreeing that when it
is gas, it has to be a Worcester Heat Systems Ltd. Condensing
appliance.
Benchmark
The “Benchmark” initiative is the new code of practice to encour-
age the correct installation, commissioning and servicing of
domestic central heating boilers and system equipment.
The “log-book” is a vital document that must be completed by the
installer at the time of installation. It confirms that the boiler has
been installed and commissioned according to the manufacturers
instructions.
Without the completion of the “log-book”, manufacturers may
refuse to respond to a call–out from a householder, who will be
advised that he or she must call back the installer, who has not ful-
filled his obligations to record the information required by the ini-
tiative.

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Safety precautions
6 720 610 598 GB (03.11) TD
Safety precautions
Gas Safety (Installation and Use) Regulations 1998
It is the law that all gas appliances are installed by a competent
person in accordance with the above regulations. Failure to install
appliances correctly could lead to prosecution. It is in your inter-
est, and that of safety, to ensure compliance with the law.
If you smell gas:
BTurn off gas service cock at the meter.
BOpen all doors and windows.
BDo not operate any electrical switches.
BDo not smoke.
BExtinguish any naked flames.
BCall your gas company.
If you smell fumes from the appliance:
BSwitch off appliance.
BOpen windows and doors.
BInform your heating engineer.
Fitting and modifications
BFitting of the appliance or any modifications to the appliance
may only be carried out by a competent person.
BFlue systems must not be modified in any way.
Maintenance
BWe recommend that you take out a maintenance contract
with a competent installer and have the appliance serviced at
regular intervals.
BEnsure that your Service Engineer uses only genuine spare
parts!

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Safety precautions
6 720 610 598 GB (03.11)
Combustible materials
BDo not store or use any combustible materials (paper, thin-
ners, paints etc.) in the vicinity of the appliance.
Health and safety
BThis appliance contains no asbestos products.
BThere is no potential hazard due to the appliance being electri-
cally unsafe.
BThere are no substances used in the construction that are a
potential hazard in relation to the COSHH Regulations (Con-
trol of Substances Hazardous to Health Regulations 1988).
Ventilation Air/Ambient Air
BKeep ventilation air/ambient air free of corrosive substances
(e. g. halogenated hydrocarbons which contain chlorine or flu-
orine compounds). In this way corrosion can be prevented.

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General notes
6 720 610 598 GB (03.11) TD
1General notes
To get the best from your appliance please read these instructions
carefully.
Sealed heating systems
The appliance is fitted to a sealed heating system which is pre-
pressurised. Your installer will tell you of the minimum and maxi-
mum pressure which must be indicated on the pressure gauge.
Check regularly that the pressure is maintained and contact your
installer or maintenance engineer if there is a permanent signifi-
cant drop in the pressure. If the system loses pressure it should
be repressurised and the cause of the fall investigated.
Central heating systems
During the first few hours of operation of the central heating sys-
tem, check that all radiators are being heated at an even rate. If the
top of a radiator is at a lower temperature than the bottom then it
should be vented by releasing air through the venting screw at the
top of the radiator. Ask your installer to show you how this is done.
Repeated venting will reduce the quantity of water in the system
and this must be replenished for safe and satisfactory operation
of the appliance.
Should water leaks be found in the system or excessive venting is
required then a service engineer must be contacted to inspect the
installation and rectify any fault.
Only additives that are compatible with aluminium may be used in
the system. Any incompatible additive used will invalidate the
guarantee.
Condensate drain
This is a condensing appliance and the terminal will, at times, give
out a plume of water vapour. This is quite normal.
The appliance produces quantities of condense which is dis-
charged regularly through the siphon.

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General notes
6 720 610 598 GB (03.11)
Clearances
Your installer will have provided adequate space around the appli-
ance for safety and servicing access. Do not restrict this space
with the addition of cupboards, shelves etc. next to the appliance.
Room thermostat
A room temperature controller may be fitted to control the central
heating. Refer to the instructions supplied with the thermostat for
information of siting and setting.
Cylinder thermostat - System boilers
The cylinder thermostat should be set to 60°C which will be sat-
isfactory for bathing/washing in normal circumstances.
Thermostatic radiator valves
It is recommended that this type of valve is fitted to all the radiators
except one, usually the radiator where the room temperature con-
troller is fitted. They should conform to the requirements of
BS2767:10.
Showers, bidets, taps and mixing valves – Combination
Boilers
Standard hot and cold taps and mixing valves must be suitable for
operating at mains pressure. Thermostatically controlled or pres-
sure equalising shower valves will guard against the flow of water
at too high a temperature.
Hot and cold mains fed water can be supplied directly to an over-
rim flushing bidet subject to local water company requirements.
Left-hand side 10 mm
Right-hand side 10 mm
In Front 600 mm
Above Casing (Vert. Flue) 200 mm
Above Flue Turret 30 mm
Below 200 mm
Table 1

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General notes
6 720 610 598 GB (03.11) TD
With all mains fed systems the flow of water from individual taps
will vary with the number of outlets operated simultaneously and
the cold water mains supply pressure to the property.
Flow balancing using “ball-o-fix” type valves is recommended to
avoid an excessive reduction in flow to individual outlets.
For further information contact Worcester Heat Systems Ltd.
Technical Services Department.
Hot and cold flow – Combination Boilers
The flow of water demanded from both hot and cold service out-
lets is dependent upon the mains supply, it may not be possible in
some installations to operate all outlets simultaneously.
Water mains failure – Combination Boilers
If there is a failure of the mains water supply then no water will be
available at a tap or shower until the mains supply is restored. The
appliance will still operate in the central heating mode.
Use in hard water areas – Combination Boilers
In exceptionally hard water areas a device to prevent scale forma-
tion may be fitted. Installation of a scale inhibitor assembly should
be in accordance with the requirements of the local water com-
pany. An isolating valve should be fitted to allow for servicing.
Alternatively the maximum temperature of the domestic hot water
may be reset to about 45 °C which will reduce the risk of scale
formation in these hard water areas.
Ventilation
This is a room sealed appliance and does not require any air for
combustion from inside the house. If the appliance is fitted into a
cupboard or a compartment is built around the appliance after
installation then the compartment must be separated from the
boiler space by a perforated non-combustible partition as
described in BS 6798.
Notwithstanding the requirements of BS 6798, there is no need
for ventilation openings to be provided in the compartment
because of the low heat loss from the casing.

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General notes
6 720 610 598 GB (03.11)
Do not allow the flue terminal fitted on the outside wall to become
obstructed or damaged.
Pump
The pump is a fully modulating type to which the parameters have
been set by the manufacturer and must not be adjusted.

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Controls
6 720 610 598 GB (03.11) TD
2Controls
Fig. 1
8.1 System Pressure gauge
61 Reset button
135 Master switch
136 Central heating temperature control
170 Service valves in CH flow and return
171 Hot water
172 Gas isolation valve (open)
173 Cold water inlet
295 Identification sticker
310 Hot water temperature control
317 Display
363 Indicator lamp for “burner on”
364 Indicator lamp for “off/on”
365 “Chimney sweep” button
366 Service button
367 “ECO” button
400 Text Display
170
170
172 173
171
8.1
365136 61 317 366 367
ECO
364
135
295
310363 400
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Operating the Appliance
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3Operating the Appliance
3.1 Preparation
Turn on the gas cock (172).
BPress in the handle and turn it anti-clockwise as far as the stop
(when handle is in line with direction of flow, the cock is open).
Central heating system valves (170)
BUsing a spanner, turn square nut until groove is in line with
direction of flow (see detail).
Groove at right angles to direction of flow = off.
Cold water inlet valve (173)
BTurn handle so that it is in line with direction of flow.
When handle is at right angles to direction of flow, the valve is
closed.
Fig. 2
170
172 173
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Operating the Appliance
6 720 610 598 GB (03.11) TD
Check the central heating system pressure
BThe pointer on the pressure gauge (8.1) should be about 1 bar.
BIf the pointer is below 1 bar (when the system is cold), top up
the system with water until the pointer is 1 bar. Your installer
will have shown you how to do this.
BThe maximum operating pressure of 2.5 bar at maximum
central heating flow temperature must not be exceeded. If the
pressure increases to 3 bar then the relief valve (15) opens.
Fig. 3
170
170
172 173
171
8.1
15
bar
0
1
2
3
4
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Operating the Appliance
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3.2 Switching the Appliance On/Off
Switching on
BSwitch on the appliance at the master switch (I).
The indicator lamp shows green and the display will show the
central heating flow temperature, when the appliance is oper-
ating in the central heating mode.
Fig. 4
The trap filling programme ensures that the condensation trap is
filled after the appliance has been installed or after the appliance
has been out of use for a long period. For that reason, the appli-
ance remains at minimum heating output for 15 minutes.
Switching off
BSwitch off the appliance at the master switch (0).
The green indicator lamp goes out. The optional timer will con-
tinue running until the emergency supply is exhausted.
i
If the display alternates between -II- and the cen-
tral heating flow temperature, the trap filling pro-
gramme is active.
6 720 610 333-04.1O

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Operating the Appliance
6 720 610 598 GB (03.11) TD
3.3 Switching on the Central Heating
BTurn the central heating temperature control to the desired
level:
–“Min” setting: 35°C
–Low-temperature heating: setting “E” (approx. 75°C)
–“Max” setting: 88°C
When the burner is lit, the red indicator lamp is illuminated.
Fig. 5
3.4 Controlling Central Heating
BSet the timer to the correct time.
BSet room thermostat to the desired room temperature.
BSet temperature driven control unit, if fitted. Refer to the
instructions with the control.
BSet the thermostatic radiator valves to the desired settings.
6 720 610 333-05.1O

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Operating the Appliance
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3.5 Combination Boilers: Setting the Hot Water
Temperature
Hot water temperature
On combi models, the hot water temperature can be set to
between approx. 40°C and 60°C using the temperature
control .
The domestic hot water temperature is not shown on the display.
Fig. 6
“ECO” button
By pressing and holding the “ECO” button , until the display
lights, you can switch between Comfort mode and Economy
mode.
Comfort mode: button is not lit (factory setting)
The appliance is held constantly at the set temperature. This
means that hot water is available almost instantaneously at the
tap. Consequently the appliance will switch on at intervals, even if
no hot water is being drawn.
Control Setting Water Temperature
Anti-clockwise limit approx. 40°C
 approx. 55°C
Clockwise limit approx. 60°C
Table 2
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Operating the Appliance
6 720 610 598 GB (03.11) TD
ECO mode with demand detection, button is lit
The demand detection function enables maximum gas and water
economy.
Briefly turning a hot water tap on and then off again signals
demand to the appliance which then heats up the water to the set
temperature.
Hot water is thus available in about 1 minute.
ECO mode, button is lit
Water is not heated up until hot water is drawn. This means that
there is a longer waiting period before hot water is available.
3.6 System boiler with Storage Tank
BSet the hot water temperature by means of the temperature
control on the appliance.
Fig. 7
BDo not set the temperature higher than
60°C for normal operation.
BOnly use temperatures of up to 70°C tempo-
rarily for thermal disinfection purposes.
i
With the text display you can additional set hot
water charging times or times and tempera-
tures.
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Operating the Appliance
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ECO button
Pressing and holding the ECO button , until it lights up
switches from Comfort mode to ECO-mode.
Comfort mode, ECO button is not lit (factory setting)
In Comfort mode the hot water tank has priority. The hot water cyl-
inder is first heated up to the set temperature. The appliance then
switches to central heating mode.
ECO mode, button is lit
In ECO mode the appliance switches between central heating
mode and cylinder charging mode every 12 minutes.
3.7 Summer Mode, Hot Water Only
(Combi Appliances)
With room temperature controller
BTurn temperature control on the appliance anti-clockwise
as far as the stop.
The central heating is now turned off. The hot water function
and the mains power supply for the heating programmer and
timer remain switched on.
Control Setting Water Temperature
Anti-clockwise limit approx. 10°C
(frost protection)
lapprox. 60°C
Clockwise limit approx. 70°C
Table 3

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Operating the Appliance
6 720 610 598 GB (03.11) TD
3.8 Frost protection (Combi Appliances)
BLeave master switch switched on.
If the appliance is to be left for long periods switch the central
heating on and set the room temperature controller at 6°C.
BAdd a suitable anti-freeze fluid to the water in the central heat-
ing system.
Suitable products are available from Betz-Dearborn Tel.: 0151
4209563, Fernox Tel.: [phone] and Salamander Tel.:
0121 378 0952.
3.9 Fault Condition
In the unlikely event of a fault occurring while the appliance is in
operation:
The display and the text display then shows a fault code and the
button may also flash.
If the button flashes:
BPress and hold the button until the display shows “––”.
The appliance will then start up again and the display will show
the central heating flow temperature.
If the button does not flash:
BSwitch the appliance off and then on again at the master
switch.
The appliance will start up again and the central heating flow
temperature will be displayed.
If the fault remains and can not be cleared:
BCall Worcester Heat Systems Ltd. for assistance, giving a
description of the fault and, if possible, the fault code from the
facia display.

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Text Display
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4TextDisplay
4.1 General Description
•The text display is used to display information about the appli-
ance and the system and to alter the settings displayed.
•Once the appliance has been in operation for one day, the text
display module has a power buffer period of about 10 hours
during which it will run without the mains power supply. After
that period has elapsed, the clock function shuts down but all
other settings are retained.
4.2 Programming
Fig. 8 Controls
aDisplay
b“Up”/“More” button
c“Down”/“Less” button
d“Back” button
e“Next” button
f“Delete” button
The standard display shows the following information:
•Time
•Roomtemperature (if TR 2 connected)
•CHflow temperature
c
b
a
fed
C
6 720 610 337-08.1R