Worcester DANESMOOR UTILITY 12-14 User manual

DANESMOOR UTILITY
12-14, 15-19, 20-25, 26-32, 32-50, 50-70
FLOOR-STANDING OIL-FIRED PRESSURE-JET BOILERS
USER INSTRUCTIONS &
CUSTOMER CARE GUIDE
Vote for your
‘Installer of the year’ at
www.worcester-bosch.co.uk

2
EXCELLENCE COMES
AS STANDARD
Thank you for purchasing a Worcester Danesmoor oil-fired
central heating boiler.
Danesmoor oil boilers are made by Worcester and the strictest
quality control standards ever demanded are applied throughout
every stage of production.
Indeed, Worcester, part of the Bosch Group have led the field
in innovative boiler design and
performance for more than 40
years.
The result is that your
new Danesmoor boiler offers
you the very best of everything
– quality, efficiency, economical
running costs, proven reliabili-
ty and value for money.
What’s more, you also
have the assurance of our no-
nonsense 1 year parts and labour guarantee.
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
Danesmoor oil boiler, please read these notes and instructions
carefully.
ELECTRICAL CONNECTION
A mains cable should be connected to a double pole isolator
with a contact separation of 3 mm on all poles and supplying the
appliance and controls only.
The mains supply for your boiler is 230/240 volts AC-50Hz.
Your boiler must be earthed and protected by a 5-amp fuse.
OPEN-FLUED BOILERS
Your installer will create airways (in walls or doors) to ensure
an adequate supply of fresh air to the boiler for combustion. Do
not block these airways, and never hang clothes or other com-
bustible materials over the boiler or against the flue pipe.
Never place anything on top of the boiler.
ROOM-SEALED BALANCED FLUE
BOILERS
Air for this type of boiler is supplied via the balanced flue ter-
minal, and no other air supply is required, except for ventilation if
the boiler is installed in a cupboard or compartment.
ROUTINE MAINTENANCE
It is essential that your boiler is installed and serviced by a
competent heating engineer, and Worcester will be pleased to
arrange regular servicing and a comprehensive maintenance con-
tract.
Alternatively, the Oil Firing Technical Association for the
petroleum industry (OFTEC) will gladly advise you of engineers
trained by and registered with OFTEC.
Servicing should be carried out at least once a year for boilers
which burn 28-second kerosene, and twice a year for boilers
which burn 35-second gas oil.
SERIAL NUMBER
Your boiler serial number and model number should always
be quoted in any contact with Worcester. This will help identify
spare parts and also avoid confusion and delays during any service
call-out. You will find these numbers on the serial number label
which is located on the front of the control facia on all models.
For access see section “Accessing your boiler controls.”

4
TECHNICAL INFORMATION
The Danesmoor range of oil-fired boilers can provide both
domestic hot water and full central heating, with outputs ranging
from 12kW to 70kW (40,000 to 239,000 Btu/h). Domestic hot
water must be supplied via a conventional indirect hot-water sys-
tem, utilising an indirect double-feed cylinder.
The appliance is supplied without a circulating pump, but
there is provision to locate a pump within the boiler casing. For
further details please consult your installer.
The temperature control knob, overheat reset button and
lockout reset button are all located behind the cabinet front panel.
To remove the front panel pull forwards at the bottom end to
release the lower two 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.
TO START YOUR BOILER (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) Turn the thermostat control knob to the desired position (see
section Temperature Control).
ACCESSING YOUR BOILER
CONTROLS
HOW TO START YOUR
BOILER

TEMP
Isolate
mains
supply
before
removing
Burner
or any
electrical
cover.
Temperature
Control Knob
Serial Number
Label
Overheat Thermostat
Reset Button
Bosch Thermotechnik
5
(e) 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 peri-
od of approximately 20 seconds.
(f) 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.
During normal operation your boiler can be switched off at
the programmer, where fitted, or at the control switch provided by
your installer. When the heating system is not being used during
the winter period your boiler should be protected by a frost ther-
mostat. Consult your installer if you are unsure! If a frost thermo-
stat is not fitted, set the temperature control knob to the first indi-
cating mark (55°C) and leave the boiler running on low output.
To switch off your boiler for long periods, turn off the mains
electricity at the isolator switch and, during periods of cold weath-
er, drain the heating system.
TO SWITCH OFF YOUR
BOILER
Fig. 1. Control Facia
Manual Reset Overheat
Thermostat Button

6
The temperature control knob gives you con-
trol over the water temperature in your central
heating radiators, and you can adjust it to any
position within the indicated range (as shown in
Fig. 2).
Higher settings obviously mean hotter radia-
tors and rooms will reach the required tempera-
ture 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 (55°C).
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 a
dangerous temperature. This will have to be reset by 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 serv-
ice engineer.
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 sig-
nal lamp located on the burner control box.
To cancel the burner lockout condition, remove the boiler
front cover and allow two minutes before pressing the illuminated
lockout reset button, which is mounted on the burner control box.
HIGH-LIMIT THERMOSTAT
LOCKOUT
TEMPERATURE CONTROL
The control knob has a range of adjustment as indi-
cated by the symbols.
Fig. 2.
Low
Setting
High
Setting
TEMP

7
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 pressure-jet boiler is set to burn
28-second kerosene fuel. Some appliances can be converted to
burn 35-second gas oil. If this conversion has been made your
installer will inform you.
PLEASE NOTE: Danesmoor room-sealed and conventional
low-level discharge appliances MUST NOT be used with 35-sec-
ond gas oil.
Many calls made to our Contact Centre reporting 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 frus-
tration and inconvenience – a quick-reference fault finder is
included on page 8.
If, after checking through the points suggested, there is still a
fault you should call your our Contact Centre. Arrangements will
be made for an engineer to call as soon as possible.
CALL-OUT CHARGES
All of Worcesters’ 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.
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.
FUEL
FAULTS & BREAKDOWNS

8
A 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 boiler by any third party will not be
accepted.
If your boiler is not operating, it is suggested that you go
through the following simple checks before either calling your
installer or Worcester.
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 equip-
ment
There is no demand for heat
from the boiler temperature
control thermostat.
The automatic reset overheat
thermostat has operated.
Manual reset overheat thermo-
stat 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.
• 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.
• Remove the appliance front cover and
depress the lockout reset button on the
burner. (See section ‘Lockout’).
• Check the level in your oil tank and
replenish if necessary.

9
MAINTAINING YOUR
BOILER’S EFFICIENCY &
PERFORMANCE
Your new Worcester Danesmoor 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 call our Contact Centre on 08457 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.

10
CONTACT CENTRES
CONTACT NUMBERS:
UK Contact Centre Tel. [phone]
UK Contact Centre Fax. [phone]
Scotland only Fax. [phone]
Eire Tel: [phone]
OPERATING HOURS:
Mon - Fri 7.00am to 8.00pm
Sat 8.00am to 5.00pm
Sun 9.00am to 12.00pm
Please contact our UK Contact Centre number where our friendly oper-
ators will book your call with one of our team of nationwide engi-
neers.
NOTE:
Please refer to our website for our bank holiday hours.
www.worcester-bosch.co.uk

11
YOUR WORCESTER
DANESMOOR GUARANTEE
This appliance is guaranteed from the date of installation
subject to the following conditions & exceptions.
1. The appliance is guaranteed for a
period of 24 calendar months sub-
ject to the return of the guarantee
card within 30 days of installation
and the first 12 months service and
inspection having been carried out
to the satisfaction of BBT
Thermotechnology UK Ltd. Please
note that this service is not covered
under the terms & conditions of the
warranty and would therefore incur
a charge.
2. That during the period of this guar-
antee any components of the unit
which are Proved to be faulty or
defective in manufacture will be
exchanged or repaired Free of mate-
rial charges and free of labour
charges if repaired directly by BBT
Thermotechnology UK Ltd.
Invoices for attendance and repair
of this appliance by third parties
will not be accepted for payment by
BBT.
3. That the householder may be asked
to prove the date of installation and
that the appliance was correctly
commissioned. This information
must then be documented in the
Benchmark Gas Boiler
Commissioning Checklist.
4. That any product or part thereof
returned for servicing under the
guarantee must be accompanied by
a claim stating the model, serial
number and date of installation.
5. That BBT Thermotechnology UK Ltd
will not accept responsibility for
damage caused by faulty installa-
tion, neglect, misuse, accidental
damage or the non-observance of
the instructions contained in the
Installation and Users instructions
leaflets.
6. That the appliance has been used
only for normal domestic purposes,
for which it was designed.
7. That this guarantee applies only to
equipment purchased and used in
mainland Great Britain.
This guarantee is given in addition to all your normal statutory rights.
Worcester, Bosch Group is a trading name of BBT Thermotechnology UK Ltd.

Worcester, Bosch Group. Cotswold Way, Warndon, Worcester WR4 9SW.
Telephone: [phone]. Fax: [phone].
Technical Service Helpline 08705 266241.
www.worcester-bosch.co.uk
GUARANTEE
REGISTRATION
You should complete and return the postpaid Guarantee
Registration Card within 30 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 effi-
cient 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
8 716 114 748a (11/07)