Worcester GREENSTAR UTILITY 32/50 Manuel utilisateur

User Instructions

Floor standing oil fired condensing boiler conventional flue and room sealed flue

Greenstar Danesmoor Utility ErP 32/50 & 50/70

6 720 813 330-01.1TL

For fully pumped open vent and sealed central heating systems and domestic hot water cylinders.

For use with Kerosene (Class C2) only.

6 720 813 330 (2014/09)

Preface

Greenstar Danesmoor Utility ErP – 6 720 813 330 (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 . . . . . . . . . . . . . . . 3

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 . . . . . . . . . . . . . . 5

3.2.1 Switching the boiler on/off . . . . . . . . 5

3.2.2 Setting temperature . . . . . . . . . . . . . . 5

3.2.3 Controlling central heating . . . . . . . . . 6

3.2.4 Frost protection . . . . . . . . . . . . . . . . . 6

4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.1 Maintaining your boiler . . . . . . . . . . . 6

4.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . 6

5 General information . . . . . . . . . . . . . . . . . . . . 7

5.1 Ventilation information . . . . . . . . . . . 7

5.2 General notes . . . . . . . . . . . . . . . . . . . 8

5.2.1 Central heating systems . . . . . . . . . . . 8

5.2.2 Condensate drain . . . . . . . . . . . . . . . . 8

5.2.3 Clearances - service . . . . . . . . . . . . . . 8

6 Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6.1 Accessing reset buttons . . . . . . . . . . 10

6.2 Fault conditions . . . . . . . . . . . . . . . . 10

7 Fault or breakdown . . . . . . . . . . . . . . . . . . . 11

8 Energy saving . . . . . . . . . . . . . . . . . . . . . . . . 12

8.1 Tips on energy saving . . . . . . . . . . . . 12

9 Environment/disposal . . . . . . . . . . . . . . . . . 12

10 Your guarantee . . . . . . . . . . . . . . . . . . . . . . . 13

10.1 Guarantee registration 13

10.2 Your guarantee 13

Key to symbols and safety instructions

Greenstar Danesmoor Utility ErP – 6 720 813 330 (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 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

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

other related documents

a reference number to identify or refer to a part or

item

•alistentry

– a list entry (second level)

Table 1

General Information

Greenstar Danesmoor Utility ErP – 6 720 813 330 (2014/09)

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.

Using your boiler

Greenstar Danesmoor Utility ErP – 6 720 813 330 (2014/09)

3Usingyourboiler

3.1 Controls

Fig. 1

[A] Temperature control (behind upper front panel)

[B] Reset button - boiler overheat thermostat (behind front

panel)

[C] Reset button - flue overheat thermostat (behind front

panel)

[D] Reset button - lockout (top of burner under top panel)

[E] Upper front panel (pull squarely away from the boiler to

remove)

[F] Top panel (lift squarely up from boiler to remove)

3.2 Operating the boiler

3.2.1 Switching the boiler on/off

▶ To switch on the boiler; turn on the 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 temperature

▶ Turn the control clockwise to increase the water

temperature.

▶ Turn the control anti-clockwise to reduce the water

temperature.

The minimum and maximum ranges of the temperature control

positions are approximately 60°C to 82°C.

Fig. 2

3.2.3 Controlling central heating ▶ Set the programmer/timer to the correct time with the

required ON/OFF periods.

6 720 813 330-02.1TL

6 720 813 330-03.1TL

Maintenance

Greenstar Danesmoor Utility ErP – 6 720 813 330 (2014/09)

▶ 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.

If there is no hot water or heating, check page 6 for fault

condition guidance.

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

essential thatservicing andmaintenance checks are performed

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.

General information

Greenstar Danesmoor Utility ErP – 6 720 813 330 (2014/09)

5 General information

5.1 Ventilation information

Boiler location

**The boiler can be installed under a work top as long as:

▶ The work top 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.

Fig. 3

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. Further

information can be found in BS 5410 which also describes

venting requirements.

Conventional flued boilers

Minimum area of air inlet for combustion:

248cm2 for 32/50kW appliances

358cm2 for 50/70kW appliances

Minimum air vent area (cm2) for boilers installed in a

compartment

ANNUAL

SERVICE CLEARANCES

600mm

30 0mm

10mm

720mm

1415mm

1312mm

6 720 813 330-05.1TL

Conventional flue

kW Internal ventilation1)

1) Internal air to and from a space/room inside the building.

External ventilation2)

2) External air to and from directly outside the building.

High Level Low Level High Level Low Level

32/50 495 743 248 495

50/70 715 1073 358 715

Table 2

Room Sealed flue

kW Internal ventilation1) External ventilation2)

High Level Low Level High Level Low Level

32/50 495 495 248 248

50/70 715 715 358 358

Table 3

General information

Greenstar Danesmoor Utility ErP – 6 720 813 330 (2014/09)

Venting compartments

▶ Ventilation must be provided for boilers fitted into

compartments as described in BS 5410

▶ A minimum of two air vents must be fitted, one at low level

and another at high level onto the same wall using the same

air for circulation.

▶ Combustion air must not be taken from a room or internal

space containing a bath or shower and must not

communicate with a protected area such as a hall, stairway,

landing, corridor, lobby, shaft etc.

▶ Air vents must allow access for clean free air and must be

sited to comply with the flue terminal position

requirements.

▶ Air ducting runs must not exceed 3m.

▶ Low level air vents must be less than 450mm from the

floor.

▶ A warning label must be attached to the vents with a

statement to the effect:

"Do not block this vent. Do not use for storage".

5.2 General notes

To get the best from your boiler. please read these instructions

carefully.

5.2.1 Central heating systems

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.

5.2.2 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.

5.2.3 Clearances - service

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.

Fault finding

Greenstar Danesmoor Utility ErP – 6 720 813 330 (2014/09)

6Faultfinding

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 causesand 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

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

Hot water

temperature too

high

Temperature set too high on cylinder thermostat

control.

▶ Check setting and adjust

Table 4 Fault finding

Fault finding

Greenstar Danesmoor Utility ErP – 6 720 813 330 (2014/09)

6.1 Accessing reset buttons

Reset buttons [A, B & C]

▶ To remove upper front panel pull panel squarely away from

the front of the boiler.

▶ To replace, realign ball studs and push back into place.

Burner lockout reset button [D]

▶ Pull top panel squarely upwards to remove.

▶ To replace, realign ball studs and push back into place.

Always keep pressure to the edges of the panels to avoid

accidental damage.

Fig. 4

6.2 Fault conditions

If the boiler fails to operate.

▶ Check the oil level in the oil storage tank.

▶ Check there is not a power cut and the power supply to the

boiler is switched on.

▶ Check the programmer is set to on.

▶ Check the room thermostat and where fitted, the radiator

thermostats are set correctly.

▶ Remove upper front panel and check the thermostat

control knob [A] is turned on.

If the above checks prove satisfactory and the boiler remains

off, then a safety device in the boiler control system may have

been activated to prevent the boiler from operating.

Automatic reset

▶ An excessive boiler operating temperature can activate a

thermostat to switch off the boiler. This thermostat

automatically resets when the boiler has cooled down

sufficiently.

Do not attempt to repeatedly start the boiler using the

manual reset buttons as persistent failure indicates a fault

requiring the attention of a service engineer.

Boiler overheat (manual reset)

▶ Should the boiler temperature rise beyond the automatic

reset level, a high limit thermostat will switch the boiler off,

indicated by button [B] standing proud. When the boiler

has cooled down, press and release [B] to reset the

thermostat.

Flue overheat (manual reset)

▶ Excessive combustion gas temperatures can activate a

thermostat to switch off the boiler, indicated by button [C]

standing proud. Press and release [C] to reset thermostat.

Burner lockout (manual reset)

▶ Flame failure, for any reason, will cause the burner to go

safely to a lockout condition.

▶ Remove the boiler top panel and check the lockout button

[D]. If this is illuminated it indicates a "lockout" condition.

To cancel lockout, wait 2 minutes, then press and release

button [D].

6 720 813 330-04.1TL

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