Bosch Danesmoor 12-14 User manual

DANESMOOR UTILITY
12-14, 15-19, 20-25, 26-32
WORCESTER BOSCH
50-70,70-90,90-110
FLOOR-STANDING OIL-FIRED PRESSURE-JET BOILERS
WHEN FITTED INSIDE THE
OUTDOOR PACK
USER INSTRUCTIONS &
CUSTOMER CARE GUIDE
IMPORTANT: Please discard previous User Instructions and retain only the
'Worcester Outdoor Pack' user instructions.

2
EXCELLENCE COMES
AS STANDARD
Thank you for purchasing a Worcester oil-fired central heating
boiler.
Worcester oil boilers are made by Worcester Heat Systems
and the strictest quality control standards ever demanded are
applied throughout every stage of production.
Indeed, Worcester Heat Systems have led the field in
innovative boiler design and
performance for more than 30
years.
The result is that your new
Worcester boiler offers you the
very best of everything -
quality, efficiency, economical
running costs, proven reliability
and value for money.
What’s more, you also have the
assurance of our no-nonsense 2
year parts and labour
guarantee.
And it’s backed up by
Worcester Care Call - 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 has to be oil, it has to be Worcester.
Page No.
Operating Instructions
.................................... 3-8
Fault Finding Guide ...... 8
Maintenance and Extended
Warranty Information .... 9
Service Centres ............ 10
Guarantee Details ........ 11
CONTENTS

3
GENERAL
INFORMATION
To ensure you get the very best from your new Worcester oil
boiler, please read these notes and instructions carefully.
Discard the user instructions provided within the white boiler
casing of the boiler and only use the Outdoor Pack user
instructions and boiler customer care guide.
ELECTRICAL CONNECTION
The electrical supply to this appliance must satisfy the latest
edition IEE wiring regulations and any local regulations, which apply.
The mains supply to the boiler should be fed via a circuit
breaker including earth leakage protection.
The mains supply for your Worcester boiler is 230 volts
AC-50Hz.
Your boiler must be earthed and protected by a 5-amp fuse
to BS1362.
VENTILATION AND AIR SUPPLY
Air for the boiler is supplied via the flue terminal, and no
other air supply is required.
ROUTINE MAINTENANCE
It is essential that your boiler is installed and serviced by a
competent heating engineer, and Worcester Heat Systems will be
pleased to arrange regular servicing and a comprehensive
maintenance contract.
Servicing should be carried out at least once a year for boilers,
which burn 28-second kerosene.
The service engineer should have access to the property to
check for system faults and reset / replace electrical safety devices.
WARNING NOTE:
Your boiler is serviced and repaired externally. External
equipment operated at 230 volts should not be serviced or repaired
under adverse weather conditions.
WARNING NOTE:
The service socket has been designed for use by the service
engineer only and should not be used for connection to any other
electrical household products.

4
NOTE:
The Outdoor Pack is not load bearing; it only provides
weather proofing for the boiler inside.
SERIAL NUMBER:
In any contact with Worcester Heat Systems quote your
boiler serial number, model and that it is fitted within the Outdoor
Pack. This will help identify spare parts and also avoid confusion
and delays during any service call-out.
You will find the boiler serial number on the front of the control
facia as shown in fig.1. Access can be gained by removing the
Outdoor Pack front cover and white front panel of the boiler
casing. (See section ‘Accessing your boiler controls.’)
TECHNICAL INFORMATION:
The Worcester Danesmoor Utility oil-fired pressure-jet
boiler when fitted inside the Outdoor Pack provides both domestic
hot water and full central heating, with outputs ranging from
12kW to 32kW (41,000 to 109,000 Btu/h).
The Worcester Bosch oil-fired pressure-jet boiler when fitted
inside Outdoor Pack provides both domestic hot water and full
central heating, with outputs ranging from 51,000 to 109,000 Btu/h.
Domestic hot water must be supplied via a conventional
indirect hot-water system, utilising an indirect double-feed
cylinder.
WARNING NOTE:Completely isolate the appliance
from inside the property before accessing your boiler controls.
The temperature control knob, overheat reset button and
lockout reset button are all located behind the white front panel of
the boiler casing within the Outdoor Pack.
To remove the Outdoor Pack front cover, remove the padlock,
if fitted, unscrew the two fixings pulling out and upward to release
the front cover. Then remove the white front panel of the boiler
casing by pulling forwards at the bottom end to release the lower
ball studs and repeat the procedure at the top end to release the
upper ones. Take care not to pull the bottom end too far forwards
as this may damage the spring clips
ACCESSING YOUR BOILER
CONTROLS

5
(See Fig. 1.)
(a) Switch on the electrical mains supply to the boiler.
(b) Ensure that any external controls connected to the boiler, such
as a room thermostat, are on a high setting.
(c) If a programmer is fitted set it to the correct time of day and
position the selectors to ON.
(d) Ensure the switch on the Outdoor control box is in the ‘run’
position.
(e) Turn the thermostat control knob to the desired position
(see Fig. 2: temperature control).
(f) Your boiler will now commence a start sequence, in which a
pre-ignition period of approximately 15 seconds is followed
by a supply of atomised oil being introduced into the
combustion chamber. Ignition then occurs, followed by a post-
ignition period of approximately 20 seconds.
(g) Your boiler is now in a steady run condition and will remain so
until the water temperature reaches the temperature set on the
control thermostat. At this point the burner will stop and the
boiler will shut down. The sequence will continue until the
boiler is programmed - either manually or by an automatic
programmer - for a period of shutdown.
Fig. 1. Control Facia
HOW TO START YOUR
BOILER
Overheat
Thermostat
Reset Button
Switch
TEMP
Isolate
mains
supply
before
removing
Burner
or any
electrical
cover.
Bosch Thermotechnik
Temperature
Control Knob
Serial Number
Label
Side view of
switch in
‘RUN MODE’
RUN
SERVICE
Frost Thermostat
Outdoor Control Box

6
During normal operation your boiler can be switched off at
the programmer, where fitted. A frost thermostat is fitted as
standard to protect the boiler only in frost conditions. If there is a
possibility the central heating /hot water system may be exposed to
frost conditions, an additional frost thermostat should be fitted.
Consult your installer if you are unsure! The boiler should remain
connected to the mains power supply to enable the boiler to
operate in the event of a frost condition.
In the event you have to switch off your boiler for long
periods, turn off the mains electricity at the isolator switch within
the property and drain the boiler and heating system.
The temperature control knob gives you control over the
water temperature in your central heating radiators, and
can be adjusted to any position within the indicated range
(as shown in Fig. 2).
Higher settings obviously mean hotter radiators and
rooms will reach the required temperature quicker. The
ideal setting varies from property to property, and can only
be established by trial and error and experience: a setting
of medium to high should serve as a good initial guide.
PLEASE NOTE: The control knob must not be set
below the first indicating bar
Your boiler is fitted with two high limit thermostats to protect
the appliance in the event of a control or system malfunction. The
first overheat thermostat is designed to cut out at a lower
temperature than the manual reset overheat thermostat, and will
reset itself when the boiler cools to a safe operating level.
The manual reset thermostat will operate if the boiler reaches
an excessively high temperature. This will have to be reset by
HIGH-LIMIT THERMOSTAT
TEMPERATURE CONTROL
The control knob has a range of adjustment as
indicated by the symbols.
Fig. 2.
Low
Setting
High
Setting
TEMP
TO SWITCH OFF YOUR
BOILER

LOCKOUT
7
pressing the button located underneath the control box. (See fig 1.)
If the overheat thermostat persistently cuts out then your
boiler requires attention and you should call either your installer or
a service engineer.
A frost thermostat is fitted as standard to protect the boiler
only in frost conditions. If there is a possibility the central heating
/hot water system may be exposed to frost conditions, an additional
frost thermostat should be fitted. The boiler should remain
connected to the mains power supply to enable the boiler to
operate in the event of a frost condition.
A flame failure device is incorporated into the control system of
your boiler. So, should the flame fail for any reason, or should
ignition fail to initiate a satisfactory start, the boiler is automatically
locked out for safety. This lockout condition is indicated by a signal
lamp, located on the burner control box.
To reset the burner lockout condition, remove the Outdoor
Pack front cover and boiler front cover (See section “Accessing your
boiler controls”) and allow two minutes before pressing the
illuminated lockout reset button, which is mounted on the burner
control box. Provided the system is still calling for heat, the burner
will then operate and commence another start cycle.
Persistent lockout indicates a fault and an engineer should be
called, so do not attempt to repeatedly restart the boiler.
Your Worcester Danesmoor or Worcester Bosch pressure-jet boiler
is set to burn 28-second kerosene fuel.
PLEASE NOTE: This appliance must not be used with 35-
second gas oil.
Many calls made to Worcester Heat Systems to report boiler
faults or breakdowns prove to be false alarms, as there is often a
simple explanation for the apparent malfunction.
So, to help you save time and money - not to mention
frustration and inconvenience - a quick-reference faultfinder is
included on page 8.
FROST THERMOSTAT
FUEL
FAULTS & BREAKDOWNS

8
If, after checking through the points suggested, there is still a
fault you should call your local Worcester Heat Systems Service
Centre. Arrangements will be made for an engineer to call as soon
as possible.
Call-Out charges
All of Worcester Heat Systems’ field service engineers are
factory trained.
If you request a visit from an engineer and your boiler has
been installed within the last 24 months, no charge will be made
for parts and/or labour providing:
●The appliance was commissioned correctly on
installation and a completed Guarantee Registration Card returned
to Worcester Heat Systems.
●An appliance fault is found and the appliance has
been installed within the past 24 months, provided that the first
annual service has been carried out on a boiler, which is more than
12 months old. Reasonable evidence of this must be supplied on
request.
call-out charge will be made where:
●The appliance has been installed for over 24 months
●The appliance has been installed for more than 1 year
but less than 2 years and has not had a first annual service by an
approved company.
OR
●Our Field Service Engineer finds no fault with the
appliance (see note).
OR
●The cause of breakdown is misuse or with other parts
of your plumbing/heating system or with equipment not supplied
by Worcester.
NOTE: Invoices for attendance and/or repair work carried out
on your Worcester Danesmoor or Worcester Bosch boiler by any
third party will not be accepted.

9
FAULT FINDER
SYMPTOM POSSIBLE CAUSE CHECK/REMEDY
Boiler does not fire and
burner lockout lamp is
not illuminated
Boiler does not fire and
burner lockout lamp is
illuminated
There is no demand for heat
from external control
equipment
There is demand for heat from
external control equipment but
the boiler does fire
There is no demand for heat
from the boiler temperature
control thermostat.
The automatic reset overheat
thermostat has operated.
Manual reset overheat
thermostat has operated.
There is no electricity supply to
the boiler.
The boiler has attempted to fire,
but has gone to lockout.
• Check the programmer is programmed for
hot water and/or central heating and re-
programme if necessary.
(See programmer operating instructions).
• If the boiler is programmed for central
heating, check the room thermostat is
turned on.
• Check any other control devices fitted.
• Check the switch on the Outdoor Pack is
set in the ‘Run’ mode.
• Turn the temperature control knob to
maximum.
• If the boiler is hot allow time to self reset.
• Press the reset button
(See section ‘High-limit thermostat).
• Check power supply is switched on.
• Check the external power supply fuse.
• Check the switch on the Outdoor Pack is
set in the ‘Run’ mode.
• Remove the Outdoor Pack front cover and
white front panel of the boiler casing and
depress the lockout reset button on the
burner. (See section ‘Lockout’.)
• Check the level in your oil tank and
replenish if necessary.
If your boiler is not operating, it is suggested that you go
through the following simple checks before either calling your
installer or Worcester Heat Systems.

MAINTAINING YOUR
BOILER’S EFFICIENCY &
PERFORMANCE
Your new Worcester Danesmoor or Worcester Bosch oil-fired
boiler represents a long-term investment in a reliable, high quality
product.
In order to realise its maximum working life, and to ensure it
continues to operate at peak efficiency and performance, it is
essential that your boiler receives regular, competent servicing and
annual maintenance checks beyond the initial 24 month guarantee
period.
Regular service contracts can be arranged with your installer -
however if you have difficulty making a satisfactory arrangement
simply contact Worcester Heat Systems on
0345 256206 for help.
If you would like to know more about Worcester’s extended
warranty options please tick the appropriate box on your
Guarantee Registration card.
SERVICE CENTRES
Contact Numbers:
UK Call Centre Tel. [phone]
UK Call Centre Fax. [phone]
Scotland only Fax. [phone]
Operating Hours:
Mon - Fri 8.00am to 6.00pm
Sat 8.30am to 1.00pm
Please contact our UK Call Centre number where
our friendly operators will book your call with
one of our team of nationwide engineers.
NOTE:
Sunday and Bank Holiday cover is not available
IMPORTANT
Do not touch or adjust any sealed component
10

11
YOUR WORCESTER
DANESMOOR / WORCESTER
BOSCH GUARANTEE
GUARANTEE
REGISTRATION
This appliance is guaranteed against faulty materials or
workmanship for a period of twenty four calendar months from the
date of installation subject to the following conditions and
exceptions.
1. That during the currency of this guarantee
any components of the unit which are
proved to be faulty or defective in
manufacture will be exchanged or repaired
free of material charges and free of labour
charges by Worcester Heat Systems
Limited.
2. That the householder may be asked to
prove the date of installation, that the
boiler was correctly commissioned and,
where appropriate, the first 12 month
service has been carried out to the
satisfaction of Worcester Heat Systems
Limited when requested.
3. That any product or part thereof returned
for servicing under the guarantee must be
accompanied by a claim stating the Model,
Serial Number, Date of Installation, proof
of commissioning, proof where
appropriate of the first 12 month service
and the address of the householder.
4. That Worcester Heat Systems Limited will
not accept responsibility for damage
caused by faulty installation, neglect,
misuse or accidental damage, the non-
observance of the instructions contained in
the Installation and Operating Instructions
leaflets.
5. That the appliance has been used only for
normal domestic purposes for which it was
designed.
6. That this guarantee applies only to
equipment purchased and used in
mainland Great Britain and Northern
Ireland.
You should complete and return the postpaid Guarantee
Registration Card within 14 days of purchase.
The card will register you as the owner of your new Worcester
Danesmoor boiler and, while this will not affect your statutory
rights in any way, it will assist us to maintain an effective and
efficient customer service by establishing a reference and
permanent record for your boiler.
FOR YOUR OWN RECORD
MODEL SERIAL NUMBER
(See identity label inside appliance casing)
TYPE/SIZE DATE OF INSTALLATION
This guarantee is given in addition to all your normal statutory rights.

Worcester Heat Systems Limited. Cotswold Way, Warndon, Worcester WR4 9SW.
Telephone: [phone]. Fax: [phone].
Technical Service Helpline 08705 266241.
www.worcester-bosch.co.uk 8 716 102 841a 06/01