Bosch Worcester Greenstar Danesmoor Kitchen Regular ErP... User manual

UK
User Instructions
Floor standing oil fired condensing boiler conventional flue and room sealed flue
Greenstar Danesmoor Kitchen Regular ErP and
Kitchen System ErP 12/18, 18/25 & 25/32
6720809404-00.1Wo
For fully pumped open vent and sealed central heating systems and domestic hot water cylinders.
For use with Kerosene (Class C2) only.
6 720 813 724 (2014/09)

2
Preface
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
Preface
Please read these instructions carefully
These instructions are applicable to the Worcester, Bosch
Group appliance model stated on the front cover only.
These instructions apply in the UK only and must be followed
except for any statutory obligation.
After installation please leave this User instruction Manual,
Installation, Commissioning and Servicing Instructions and
completed Benchmark Checklist with the user.
Dedicated to heating comfort
Thank you for purchasing a Greenstar oil-fired condensing
appliance manufactured by Worcester, Bosch Group. The
company prides itself on manufacturing appliances to the
strictest quality control standards throughout every stage of
production.
Worcester, Bosch group has led the field in innovative
appliance design and performance for over 50 years. This
heritage means all our products are of exceptional quality and
proven reliability.
The Greenstar range in particular is extremely energy efficient,
offering you economical running costs and value for money. It is
amongst the top energy rated appliances available.
There is also the reassurance of our parts and labour guarantee
- backed up by Worcester Total Cover, an optional complete
maintenance scheme to keep your appliance operating at peak
condition and efficiency.
Contents
1 Key to symbols and safety instructions . . . . . . . . . . . 3
1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . 4
2 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Energy efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 User caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Using your boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Operating the boiler . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.1Switching the boiler on/off . . . . . . . . . . . . . . . . . . 6
3.2.2Setting the heating temperature . . . . . . . . . . . . . 6
3.2.3Controlling the central heating . . . . . . . . . . . . . . . 6
3.2.4Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Maintaining your boiler . . . . . . . . . . . . . . . . . . . . . 7
4.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 External filling loop (sealed system only) . . . . . . . . . 8
6 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1 Ventilation information . . . . . . . . . . . . . . . . . . . . . 9
6.2 Maintenance clearances . . . . . . . . . . . . . . . . . . . . 9
6.3 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.1 Fault conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8 Fault or breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9 Energy saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9.1 Tips on energy saving . . . . . . . . . . . . . . . . . . . . . 13
10 Your guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
11 Environment/disposal . . . . . . . . . . . . . . . . . . . . . . . . 14

3
Key to symbols and safety instructions
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
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 resultin 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
Examples of additional symbols used
A numbered step in an action sequence
A sequence of numbered steps or actions carried out in a
specific order to complete a task.
1. First action
2. Second action
3. Third action
etc.
A step in an action sequence
A sequence of defined actions or steps carried out in order to
complete a task.
▶Action
▶Nextaction
▶etc
A reference to a related part in the document or to other
related documents.
To refer the reader to a specific figure/table/section within the
manual.
e.g. figure 1.
A reference number to identify or refer to a part or item.
In a related figure, items or parts identified by a sequential
number.
List entries, first and second levels
• A single component/item
• A component/list, made up of multiple parts/items.
– Sub component or sublist of main component/list.
–etc.
Safety instructions in this document are
framed and identified by a
warning triangle which is printed on a grey
background.
This symbol indicates important information
where there is no risk to people or property.
Symbol Meaning
1. a numbered step in an action sequence
▶ a step in an action sequence
a reference to a related part in the document or to
other related documents
a reference number to identify or refer to a part or
item
•alistentry
– a list entry (second level)
Table 1
1

4
General Information
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
1.2 Safety instructions
These operating instructions are intended for the user of the
heating system.
▶ Read any operating instructions (boiler, heating controls,
etc.) carefully before operation and keep them.
▶ Observe the safety instructions and warnings.
Oil fumes or leaks from the appliance
If you smell oil fumes, observe the following rules.
▶Extinguishanynakedflames
▶ Isolate the electrical supply
▶ Isolate the fuel supply to the boiler
▶ Open windows and doors
▶ Rectify the fault
Health and safety
The appliance contains no asbestos and no substances have
been used in the construction process that contravene the
COSHH Regulations (Control of Substances Hazardous to
Health Regulations 1988). Where applicable, the CE mark
indicates compliance with relative EU Directives.
Combustion air/room air
The air in the installation room must be free of combustible or
chemically aggressive substances.
▶ Do not use or store combustible or explosive materials
(paper, propellants, thinners, paints, etc.) within the
vicinity of the appliance.
▶ Do not use or store corrosive substances (solvents,
adhesives, chlorinated cleaning agents, etc.) within the
vicinity of the appliance.
Appliance operation:
This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge, if they have
been given supervision or instruction concerning the use of the
appliance, in a safe way, and understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children
without supervision.
Intended use
This appliance must only be used as a heat appliance in a sealed
hot water heating system for domestic purposes.
Any misuse or unauthorised modifications to the appliance,
flue or associated accessories and heating system will
invalidate the guarantee.
• Do not modify the appliance or flue system in any way.
Worcester, Bosch Group accepts no liability arising from any
such actions. This does not affect your statutory rights.
2 General Information
2.1 Energy efficiency
Energy efficiency information is given in the Installation,
Commissioning and Servicing Instructions supplied with the
appliance.
2.2 Servicing
The Service Checklist can be found at the rear of the boiler’s
installation instructions. It will be required in the event of any
guarantee work and may be required by the local Building
Control Inspector.
▶ Have the boiler serviced regularly by a competent, OFTEC
registered engineer.
▶ Ensure that the service engineer completes the Service
Record, at the rear of the Installation, Commissioning and
Servicing Instruction manual, after each service.
▶ Have any work carried out only by a competent, OFTEC
registered engineer.
▶ Always use original spares, to help maintain the efficiency,
safety and reliability of the appliance.
2.3 User caution
• It is forbidden for any interference with the appliance other
than those actions allowed in this document.
CAUTION: Incorrect use
▶ Any incorrect use can result in danger to
the householder.

5
Using your boiler
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
3Usingyourboiler
3.1 Controls
1. Temperature control
2. Heating demand indicator
3. Lockout indicator
4. Pressure gauge (Kitchen System only)
5. Position for option internal programmer
6. Front panel
7. Reset button - Boiler overheat thermostat (behind front panel [6])
8. Slot for quick reference guide
9. Reset button - Flue overheat thermostat (behind front panel [6])
10. Lockout reset button on burner control box (behind front panel [6])
1
2
4
3
125 3
7
10
6
8
4
6720809404-01.1Wo
9

6
Using your boiler
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
3.2 Operating the boiler
3.2.1 Switching the boiler on/off
▶ To switch on the boiler; turn on the water, oil and electricity
supply to the boiler.
▶ Check the programmer/timer is correct and is set to ON.
▶ Set the room thermostat to the desired setting.
▶ Open and set thermostatic radiator valves as required.
▶ Turn the boiler water temperature control to the required
setting.
▶ To switch off the boiler; turn the programmer/timer to OFF
for heating and hot water.
If the boiler is left unused and exposed to freezing
conditions;shut off all the mains supplies, isolate the boiler
and drain the system and boiler.
3.2.2 Setting the heating temperature
▶ Turn the control clockwise to increase the water
temperature. The demand light will illuminate until the
water reaches the set temperature. Once the set
temperature is reached the demand light extinguishes
▶ Turn the control anti-clockwise to reduce the water
temperature.
The minimum and maximum ranges of the temperature control
positions are approximately 55°C to 81°C.
3.2.3 Controlling the central heating
▶ Set the programmer/timer to the correct time with the
required ON/OFF periods.
▶ Turn the room thermostat to the temperature required.
▶ Set thermostatic radiator valves to the required
temperature for each room.
3.2.4 Frost protection
▶ Frost thermostats can be wired into the boiler.
▶ Frost protection should be fitted to the system where the
system is most exposed and at risk of freezing.
6720809404-02.1Wo
If there is no hot water or heating, check
page 10 and 11 for fault condition guidance.

7
Maintenance
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
4Maintenance
4.1 Maintaining your boiler
Your new 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
essentialthat servicing and maintenance checks areperformed
at least once a year by an OFTEC engineer or other suitably
qualified person.
If you would like to know more about servicing options from
Worcester, Bosch Group, please visit worcester-bosch.co.uk.
Please tick the appropriate box on your warranty registration
card for further details of the Worcester, Bosch Group Service
Contract.
When your boiler requires servicing please contact a
Worcester, Bosch Group contact centre (see the back cover for
details).
In addition to the service contract we are pleased to offer a one
-off annual service or breakdown call out for your boiler.
Maintenance tips:
• Regularly check the oil level in the tank
• Do not obstruct the flue outlet or the air inlet
• Regularly check the system pressure gauge, see chapter 4
Use in hard water areas
In exceptionally hard water areas a device to prevent scale
formation may be fitted. Installation of a scale inhibitor
assembly should be in accordance with the requirements of the
local water company.
An isolating valve should be fitted to allow for servicing.
4.2 Servicing
You must have the boiler regularly serviced by a competent,
qualified OFTEC registered engineer using approved spares, to
help maintain the economy, safety and reliability of the boiler.
The boiler should be serviced once each year after installation
unless the installation conditions and usage demand more
frequent services.
Ensure that the service engineer completes
the Service Record in the checklist after each
service.
The completed checklist will be required in the
event of any warranty work and may be
required by the local Building Control
Inspector.
The checklist and service interval record can
be found at the rear of the Installation,
Commissioning and Servicing Instructions.

8
External filling loop (sealed system only)
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
5 External filling loop (sealed system only)
This appliance is fitted to a sealed heating system which is pressurised. Your installer will advise you of the minimum and maximum
pressure indicated on the pressure gauge.
▶ Check regularly that the pressure is maintained.
▶ If the pressure gauge reads less than 1 bar then the system requires re-charging.
▶ Contact your installer or maintenance engineer if a permanent significant decrease or increase in pressure is indicated on the
pressure gauge.
Once the external filling loop has been located, follow the instructions for re-pressurising the system.
1. Unscrew blanking cap.
2. Attach the hose to the valves, screw on hand-tight.
3. Turn the handle/screwdriver slot through 90° to open the valves.
4. The handle/screwdriver slot will be in-line with the valves
Fig. 1 External filling loop
5. When the pressure reaches between the 1 and 1.5 bar marks (zone A), turn the handle/screwdriver slot back, through 90°, to
close the valve.
6. The handle/screwdriver slot will be at 90° to the valves
7. Remove the hose and replace the blanking caps.
If the pressure gauge reads more than 1.5 bar as a result of over filling, bleed one radiator until the pressure gauge returns to
between 1 and 1.5 bar.
2
3
1
04
bar
1
A
Min
1 bar
1.5 bar
Max
6720806947-01.1Wo
1. 2.
7.
4. 4.
3.
3.
6. 6.
5.
5.

9
General information
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
6 General information
6.1 Ventilation information
Boiler location
** The boiler can be installed under a worktop as long as:
▶ The worktop above the boiler is easily removable for
maintenance.
▶ There is at least 10mm clearance above the boiler.
▶ The front of the boiler is not enclosed.
Ventilation
Air vents must be functional at all times and the air supply must
not be restricted or contaminated.
The boiler clearances must meet the minimum shown below for
servicing and venting purposes.
* If this clearance is less than 75mm the flue 'knock-out' panel
sections must be removed to improve air circulation and
cooling.
Do not place clothes or objects to hinder the air circulation
required by the boiler.
6.2 Maintenance clearances
Conventional flue boilers require an adequate supply of fresh
air which must be delivered to the boiler for combustion
purposes through a permanent inlet, such as an air brick, into
the area where the boiler is situated.
If a cupboard or compartment which is to be used for storage or
airing is built around the boiler after installation there must be
a non-combustible partition around the boiler. Refer to the
installation manual for minimum vent sizes.
6.3 General notes
To get the best from your boiler, read these instructions
carefully.
Central heating system
During the first few hours of operation of the central heating
system, 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 boiler.
When excessive venting or water leaks are found in the system
you must contact a service engineer to inspect the installation
and rectify any fault.
Only use additives compatible with the boiler and system. Use
of incompatible additives can cause damage and will invalidate
the boiler guarantee.
Condensate drain
This is a condensing boiler and the terminal will, at times give
out a plume of water vapour. This is quite normal.
The boiler also produces quantities of condensate which is
discharged regularly via a pipe to drain.
This pipe must not be blocked or altered in any way.
Clearances, see section 6.2
Your installer will have provided adequate space around the
boiler for safety and servicing access.
Do not restrict this space with the addition of cupboards,
shelves etc. next to the boiler.
Room thermostat
A room temperature controller must be fitted to control the
central heating. Refer to instructions supplied with the
thermostat for information on siting and setting.
Thermostatic radiator valves
It is recommended that this type of valve is fitted to all but one
of the radiators (or at least those in the sleeping
accommodation). The remaining radiator, which must be
where the room thermostat is located, should be un-controlled
and must be left open.

10
Fault finding
Greenstar Danesmoor Kitchen ErP & Kitchen System ErP – 6 720 813 724 (2014/09)
7Faultfinding
In the event that the appliance stops functioning or does not perform as expected, you can carry out a few simple checks. These
checks are some of the most common causes and are listed in the table below. Should the problem persist or if other fault codes are
displayed, then it will be necessary to contact Worcester, Bosch Group.
Problem Cause Remedy
Desired room
temperature is not
reached
Thermostatic radiator valve(s) set too low ▶ Increase thermostatic radiator valve setting(s).
Temperature control for central heating flow on
boiler set too low
▶ Increase central heating flow temperature
control setting
Low temperature setting on the room thermostat ▶ Increase settings on room thermostat
Air trapped in heating system (System model) ▶Bleedradiatorsandre-pressurise the heating
system
Low system water pressure (System model) ▶ Re-pressurise the system, refer to page 8
Desired room
temperature is too
high
Thermostatic radiator valve(s) are set too high ▶ Turn down thermostatic radiator valves/room
thermostat
Room thermostat is set too high ▶ Reduce central heating temperature by turning
down the Central Heating control on boiler
Heating stays on for
too long
Clock is incorrectly set ▶ Check setting and adjust
Hot water
temperature too low
Temperature set too low on cylinder thermostat
control.
▶ Check setting and adjust
Air trapped in heating system (System model) ▶Bleedradiatorsandre-pressurise the heating
system
Low system water pressure (System model) ▶ Re-pressurise the system, refer to page 8
Hot water
temperature too
high
Temperature set too high on cylinder thermostat
control.
▶ Check setting and adjust
Table 2 Fault finding