Worcester Greenstore TC Cylinder 300 litre, Greenstore TC Cylinder 150 litre, Greenstore TC Cylinder 180 litre, Greenstore SC Cylinder 120 litre, Greenstore SC Cylinder 90 litre, Greenstore TC Cylinder 250 litre, Greenstore TC Cylinder 210 litre User manual

Worcester Greenstore TC Cylinder 300 litre, Greenstore TC Cylinder 150 litre, Greenstore TC Cylinder 180 litre, Greenstore SC Cylinder 120 litre, Greenstore SC Cylinder 90 litre, Greenstore TC Cylinder 250 litre, Greenstore TC Cylinder 210 litre User manual

Installation and maintenance instructions

Single Coil Indirect Unvented Hot Water Cylinder

Greenstore SC Cylinder Series

90/120/150/180/210/250/300 litre

Contents

Contents

1 Key to symbols and safety precautions . . . . . . . . . . . . . . . . . . . 3

1.1

Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2

Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

9 The Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2 Product details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1

Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2

Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.3

Cylinder Equipment Specification . . . . . . . . . . . . . . . . . . 4

2.4

Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.5

Scaling/Corrosion protection . . . . . . . . . . . . . . . . . . . . . . 4

2.6

Physical and connection dimensions . . . . . . . . . . . . . . . . 5

2.7

Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8

Energy efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1

Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.2

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.3

Installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.4

Inlet control group connection . . . . . . . . . . . . . . . . . . . . . 9

3.5

Connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.6

Installing the temperature sensors . . . . . . . . . . . . . . . . 10

3.7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.7.1

Connection of the secondary appliance . . . . . . . . . . . . 11

3.7.2

Connection on the water side . . . . . . . . . . . . . . . . . . . . 11

3.7.3

DHW secondary circulation . . . . . . . . . . . . . . . . . . . . . 11

3.7.4

DHW expansion vessel . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.7.5

Installing the discharge pipe work from the safety valves supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.7.6

Discharge Arrangement . . . . . . . . . . . . . . . . . . . . . . . . 12

3.8

Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1

User information from the system installer . . . . . . . . . 18

4.2

Preparing for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.1

Filling the cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.2

Setting the cylinder temperature . . . . . . . . . . . . . . . . . 18

4.3

Commissioning of the heating appliance . . . . . . . . . . . 18

5 Shutting down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.1

Taking the cylinder out of use . . . . . . . . . . . . . . . . . . . . 18

5.2

Draining the cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7 Inspection/Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.1

Recommendations for users . . . . . . . . . . . . . . . . . . . . . 19

7.2

Maintenance and repair . . . . . . . . . . . . . . . . . . . . . . . . 19

7.2.1

Draining the cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.2.2

Descaling / cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.2.3

Immersion heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.2.4

Re-commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8 Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2 6 720 804 672 (2015/07)

End User

End User

Precautions should be taken when working on hot or cold water system that is connected to an unvented hot water cylinder. Advice should always be sought from your installer or professional to prevent potential damage to the cylinder or associated equipment.

1 Key to symbols and safety precautions

1.1

Explanation of symbols

Warning symbols

Safety instructions in this document are framed and identified by a warning triangle which is printed on a grey background.

Electrical hazards are identified by a lightning symbol surrounded by a warning triangle.

Signal words indicate the seriousness of the hazard in terms of the consequences of not following the safety instructions.

NOTICE

indicates possible damage to property or equipment, but where there is no risk of injury.

CAUTION

indicates possible injury.

WARNING

indicates possible severe injury.

DANGER

indicates possible risk to life.

Important information

Notes contain important information in cases where there is no risk of personal injury or material losses and are identified by the symbol shown on the left. They are bordered by horizontal lines above and below the text.

Additional symbols

Symbol

Table 1

Meaning

a step in an action sequence a reference to a related part in the document or to other related documents a list entry a list entry (second level)

Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturer's instructions by competent persons and that it meets the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference.

Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the scheme.

Visit

centralheating.co.uk

for more information.

As a member of the HWA, Worcester adhere to the following statements.

▶ To supply fit for purpose products clearly and honestly described,

▶ To supply products that meet, or exceed appropriate standards and building and water regulations,

▶ To provide pre and post sales technical support,

▶ To provide clear and concise warranty details to customers.

Hot Water Association (HWA)

Camden House, Warwick Road,

Kenilworth, CV8 1TH

Tel: 01926 513777

Fax: 01926 855017 www.hotwater.org.uk

1.2

Safety instructions

Installation, conversion

▶ Only competent installers must install, commission, and maintain this equipment.

▶ Only use the cylinder for heating domestic hot water.

Function

▶ Observe these installation and maintenance instructions to ensure correct operation.

▶ Never switch the electric immersion heater on if the cylinder is not full of water.

Never restrict the outlets of the safety valves.

Thermal disinfection

Risk of scalding!

Caution should be taken at periods of thermal disinfection due to the possibility of domestic hot water temperatures being in excess of

60 °C .

Maintenance

Recommendation for the customer:

Arrange a maintenance and inspection contract with a competent person. Have the heating appliance and the DHW cylinder serviced annually.

▶ Always switch the mains off when servicing the system.

▶ Only use genuine spare parts!

Decommissioning or draining down

▶ Please observe best practice guidelines when draining down the system for routine maintenance or to decommission the cylinder.

Advice is given throughout this document.

WARNING:

▶ If the cold water main is isolated internally or externally for either emergency or maintenance reasons, precautions should be taken to prevent damage to the cylinder. The hot water isolation valve located at the cylinder outlet should be closed off or the cylinder should be drained down as per the recommended procedure stated within this manual.

▶ If the unvented hot water cylinder is fitted at a height

(eg, loft), then there will be a potential of damage to the cylinder if the correct method of draining the cylinder is not followed.

▶ In certain circumstance it is recommended that a

WRAS approved automatic air vent is fitted on the hot water outlet at the highest point.

6 720 804 672 (2015/07) 3

Product details

2 Product details

2.1

Usage

These cylinders are designed to accept input from a gas or oil boiler. The maximum cylinder heat input must not exceed the following values:

Cylinder

SC-90

SC-120

SC-150

SC-180

SC-210

SC-250

SC-300

Table 2

Max. cylinder heat input

31.9 kW

39.4 kW

Where the combined heat input exceeds the maximum input stated, precautions must be taken to limit the heating appliances to the appropriate input (see installation instructions of the heating appliance).

Correctly commissioned input reduces the cycling of the heating appliance and reduces the cylinder heat-up time.

2.2

Intended use

▶ Only use the cylinder for heating domestic hot water.

Any other application will be considered incorrect use. No liability for any losses resulting from such use is accepted.

2.3

Cylinder Equipment Specification

• 2x sensor pockets internal Ø = 20.4 mm

• Indirect coil for heating by the heating appliance

• All-round rigid insulation EPS (expanded polystyrene), free of CFC and HCFC.

• Duplex stainless steel cylinder

• Immersion heater, 3 kW

2.4

Standard delivery

1

2

3

4

5

6

7

8

9

10

6 720 804 672-01.1O

Fig. 1

[1] Single coil DHW cylinder

[2] Temperature and pressure relief valve

[3] Immersion heater, 3 kW

[4] Tundish Ø 15/22 mm

[5] Cold water inlet control group with anti vacuum valve

[6] 2-port valve

[7] DHW expansion vessel incorporating fixing bracket

[8] Dual cylinder thermostat

[9] Connection set

[10] Set of printed documents for the appliance and ErP label

2.5

Scaling/Corrosion protection

The cylinder is made from corrosion-resistant Duplex stainless steel.

The cylinder can be used with all mains water supplies.

Scaling: In cases where the water hardness is very high (over 450 ppm) a water softener must be used to protect the cylinder against rapid development of scale.

Corrosion protection: Any water softener shall be installed, commissioned and maintained to ensure the water hardness after the softener is never below 150 ppm.

4 6 720 804 672 (2015/07)

Product details

2.6

Physical and connection dimensions

5

6

4

3

2

1

7

8

1

45°

25°

15°

35°

45°

H

Cylinder

SC-90

SC-120

SC-150

SC-180

SC-210

SC-250

SC-300

Table 3

Fig. 2 Overview of connections

[1] Cylinder flow / return (Ø 22 mm)

[2] Sensor pocket, bottom (internal Ø 20.4 mm)

[3] DHW secondary circulation connection (Ø 22 mm)

(SC 150 to SC 300 cylinders only)

[4] Sensor pocket, top (internal Ø 20.4 mm)

[5] DHW outlet (Ø 22 mm)

[6] Temperature and Pressure Relief valve (1/2")

[7] Immersion heater (Rp 1¾ female)

[8] Cold water inlet (Ø 22 mm)

Part number

7 716 842 027

7 716 842 028

7 716 842 029

7 716 842 030

7 716 842 031

7 716 842 032

7 716 842 033

A/mm

349.5

349.5

349.5

349.5

424.5

424.5

424.5

B/mm

404.5

404.5

404.5

404.5

479.5

479.5

479.5

Fig. 3 Physical and connection dimensions

C/mm

400

400

400

400

475

475

475

D/mm

449.5

449.5

449.5

449.5

524.5

524.5

524.5

E/mm

832

1032

1207

1407

1707

F/mm

500

700

950

1150

1325

1525

1825

G/mm

835

1035

1285

1490

1665

1860

2155

H/mm

570

570

570

570

570

570

570

6 720 804 672 (2015/07) 5

Product details

Clearance dimensions

50 50

Fig. 4 Recommended minimum wall clearances

(all dimensions in mm)

6 6 720 804 672 (2015/07)

Product details

2.7

Specification

Cylinder type Greenstore

WRAS No.

WRc No.

SC-90 SC-120 SC-150 SC-180 SC-210 SC-250 SC-300

1105064 1105064 1105064 1105064 1105064 1105064 1105064

ETC

15811

ETC

15811

ETC

15811

ETC

15811

ETC

15811

ETC

15811

ETC

15811

General characteristics

Dual thermostat setting

Temperature and Pressure relief valve

Temperature and Pressure relief valve

Maximum operating pressure

Minimum operating cold mains pressure

Expansion valve setting

Size of expansion vessel supplied

Expansion vessel charge pressure

Weight (dry, excl. packaging)

Packaged weight

Weight full of water

Standby heat loss (24 h)

Cylinder capacity:

Total available capacity

Indirect coil

Heating water content

Heat exchanger surface

Maximum operating pressure inside the indirect coil

Heat exchanger power (80-60 °C / 10-40 °C)

Heat-up time 100% (15-60 °C)

Heat-up time 70% (15-60 °C)

Primary flow rate

Pressure drop

Immersion heater (BS225)

(EN60335-2.73)

Electrical power supply

°C

°C bar bar bar bar l bar kg kg kg kWh/d m l l

2 bar kW min min l/h mbar

10/70

90

7

5.5

1.5

6

12

3

26

35

119

1.008

93

3.1

0.657

6

31.9

15

12

1375

150

10/70

90

7

5.5

1.5

6

12

3

31

40

154

1.296

123

3.1

0.657

6

31.9

19

14

1375

150

10/70

90

7

5.5

1.5

6

12

3

36

46

197

1.632

161

3.1

0.657

6

31.9

23

17

1375

150

10/70

90

7

5.5

1.5

6

18

3

40

50

231

1.824

191

3.1

0.657

6

31.9

27

20

1375

150

10/70

90

7

5.5

1.5

6

18

3

44

55

260

1.944

216

3.9

0.845

6

39.4

18

13

1698

300

10/70

90

7

5.5

1.5

6

18

3

48

59

294

2.136

246

3.9

0.845

6

39.4

21

15

1698

300

292

Maximum current drawn

Electrical power

Minimum breaking capacity

Protection index

Volume heated by immersion heater

Heat up time to 60°C

Table 4

A

W

A

IP l min

230 V -

50 Hz

13

3000

13

21

48.1

66

230 V -

50 Hz

13

3000

13

21

78.3

110

230 V -

50 Hz

13

3000

13

21

116.0

145

230 V -

50 Hz

13

3000

13

21

146.1

176

230 V -

50 Hz

13

3000

13

21

161.2

200

230 V -

50 Hz

13

3000

13

21

191.3

224

Flow rates through our inlet control group

Inlet pressure (bar)

Flow rates (litres/min)

Table 5

0.1

0.2

0.3

0.4

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

12.4

18.3

22.5

25.4

28.3

39.7

50.1

55.4

60.2

64.5

67.7

69.6

71.3

72.2

Constant DHW output

The constant DHW output shown in the specification refers to the following:

• Flow temperature 85 °C

• Outlet temperature 45 °C

• Cold water inlet temperature 10 °C

• Maximum heat input (heat source input at least the same as the cylinder coil output)

Reducing the specified heat input will result in a reduction in the constant DHW output and the performance factor (N

L

).

3.9

0.845

6

39.4

24

17

1698

300

230 V -

50 Hz

13

3000

13

21

236.5

271

10/70

90

7

5.5

1.5

6

25

3

54

65

346

2.304

6 720 804 672 (2015/07) 7

Product details

Pressure drop, internal indirect coil (in mbar)

Pressure drop values resulting from the mains are not taken into account in the diagram.

Δ

p

/mbar

200

180

160

140

120

100

80

60

40

20

0

0

6720645 525-08.1O

200

Fig. 5 SC-90, SC-120, SC-150 and SC-180

 p Pressure drop

V Heating water volume

Δ

p

/mbar

400

350

300

250

200

150

100

50

400 600 800 1000 1200 1400

.

1600

V

/l/h

0

0

6720645 525-09.1O

200

Fig. 6 SC-210, SC-250 and SC-300

 p Pressure drop

V Heating water volume

400 600 800 1000 1200 1400 1600 1800

.

2000

V

/l/h

2.8

Energy efficiency

The following product data comply with the requirements of EU Regulations No. 811/2013, No. 812/2013, No. 813/2013 and No. 814/2013 as supplement to the Directive 2010/30/EU.

Cylinder description

SC-90

SC-120

SC-150

SC-180

SC-210

SC-250

SC-300

Table 6 Energy efficiency

Part number

7 716 842 027

7 716 842 028

7 716 842 029

7 716 842 030

7 716 842 031

7 716 842 032

7 716 842 033

Standing loss (S)

(Watts)

42

54

68

76

81

89

96

Storage volume (V)

(litres)

93.0

123.0

161.0

191.0

216.0

246.0

292.0

Storage volume (V)

(m

3

)

0.093

0.123

0.161

0.191

0.216

0.246

0.292

ErP - energy efficiency class

B

C

C

C

C

C

C

8 6 720 804 672 (2015/07)

Installation

3 Installation

3.1

Regulations

This System has been approved to the Building Regulations for unvented hot water storage systems and the Local Authority must be notified of the intention to install. Therefore the installation must be carried out by a person competent to install unvented hot water systems.

The installation must be carried out in accordance with the following recommendations:

• All current Building Regulations issued by the Department of the

Environment, i.e. Approved Document L1 Building Standards

(Scotland) (Consolidation) Regulations issued by the Scottish

Development Department UK Water Regulations/Byelaws (Scotland)

• Health & Safety Document No. 635 (The Electricity At Work

Regulations 1989)

• EU Regulations No. 812/2013 - Energy Labelling

The installation should also be in accordance with the following British

Standard Codes of Practice:

• BS 5449:1990 Forced circulation hot water systems

• BS 5546:2000 Installation of hot water supplies for domestic purposes

• BS EN 806-1:2000 Specifications for installations inside buildings conveying water for human consumption. General.

• BS EN 806-2:2005 Specifications for installations inside buildings conveying water for human consumption. Design.

• BS EN 806-3:2006 Specifications for installations inside buildings conveying water for human consumption. Pipe sizing. Simplified method.

• BS EN 806-4:2010 Specifications for installations inside buildings conveying water for human consumption. Installation.

• BS EN 806-5:2012 Specifications for installations inside buildings conveying water for human consumption. Operation and maintenance.

• BS 8558:2011 Guide to the design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages. Complementary guidance to BS EN

806

Failure to install this appliance correctly could lead to prosecution and will invalidate the guarantee. It is in your own interest and that of safety to ensure that the law is complied with.

Manufacturer's instructions must NOT be taken in anyway as over-riding statutory obligations.

This appliance meets the requirements of IPX4D, i.e. degree of protection against moisture.

Reference should be made to the regulations for gas and oil fired boilers.

3.2

Handling

▶ Never set the cylinder down hard during handling.

▶ Only remove the cylinder from the packaging at the installation location.

3.3

Installation location

CAUTION:

Damage through stress cracks.

▶ Install the cylinder in a room that is free from the risk of frost.

▶ Maintain the minimum clearances

(

Fig. 4 on page 6).

▶ Install the cylinder on a level floor with sufficient load-bearing capacity.

▶ If installing the cylinder in wet rooms, position it on a suitable platform.

3.4

Inlet control group connection

3

1

Fig. 7

[1] Inlet control group

[2] Rigid connection, eg copper pipe

[3] Expansion vessel

1

6

7

5

4

Fig. 8

[1] Expansion relief / anti vac-valve

[2] Pressure reducing valve

[3] Cold Mains in

[4] Balanced cold take off connections

[5] Expansion vessel connection

[6] Cold supply to cylinder

[7] Discharge to tundish

2

2

6 720 805 339-02.1GX

3

6 720 804 672 (2015/07) 9

Installation

3.5

Connection diagram

PMT

3.6

Installing the temperature sensors

The temperature sensors and safety equipment are fitted in different locations on the cylinder, subject to system.

WW

HP

230V AC

RE

SV1

MAG

ICS

SV2

M

SF

SC...

E

RV

DM

RE

KW

6 720 804 672-05.2GX

Fig. 9

SF

SV1

SV2

WW

PMT

DM

E

HP

ICS

KW

MAG

RE

RV

SC...

Pressure reducing valve (G3 kit supplied)

Drain valve

Circulation pump (heating circuit/cylinder heating)

Inlet control set

Cold water inlet

Expansion vessel (G3 kit supplied)

Isolating valve

Non-return valve

Single coil cylinder

Dual control & safety temperature sensor

Temperature and Pressure relief valve

Expansion relief anti-vac valve (G3 kit supplied)

DHW connection

WRAS approval automatic air vent (optional)

2

1

6 720 804 672-06.1O

Fig. 10 Overview of connections

[1] Lower sensor pocket

[2] Upper sensor pocket

System type

Upper sensor pocket

Lower sensor pocket

Table 7

S-plan or Y-plan

Dual cylinder thermostat

Optional Internal Diverter

Valve kit

Dual cylinder thermostat

1)

Cylinder temperature sensor

2)

1) Only the temperature limiter will be connected

2) Part of the standard delivery of the Worcester optional Internal Diverter Valve kit

(heating appliance accessory)

The temperature in the top of the cylinder may be greater than the set point of the thermostat/sensor due to stratification of the stored hot water. Positioning the cylinder thermostat or cylinder sensor (with optional diverter valve kit) in the lower sensor pocket, will only detect the water temperature in the lower section of the cylinder.

10 6 720 804 672 (2015/07)

Installation

3.7

Installation

All hydraulic cylinder connections are suitable for 22 mm pipes.

▶ Make connections with the compression fittings supplied.

3.7.1

Connection of the secondary appliance

▶ Connect to the coil (

fig. 2 [1], page 5) using the compression fittings supplied, either connection can be flow or return, performance is identical either way. The heating circuit must be positively pumped as gravity circulation is not possible.

▶ The heating circuit can be open vent or sealed system to a maximum pressure of 6 bar. If the heating circuit is sealed an expansion vessel, pressure gauge and pressure relief valve will be required if not already part of the heating appliance.

▶ The heating appliance may be gas, oil or electric but must be under effective thermostatic control. Uncontrolled heat sources such as some AGAs, back boilers and solid fuel stoves are not suitable.

▶ Caution must be taken to prevent an air lock at time of commissioning the unit, an air vent may be required.

▶ The coil must be able to be drained via a suitable valve.

3.7.2

Connection on the water side

▶ Install the cold water inlet control group as close as possible to the cylinder cold water inlet, with the compression fittings supplied. The mains supply must be able to provide the minimum pressure and flow rates stated in specification table TAB. 4, page 7.

▶ The cold water inlet control group includes a 6 bar expansion relief anti-vac valve. A discharge pipe must be installed and routed via a tundish in accordance with current regulations.

NOTICE:

▶ If the cold water main is isolated internally or externally for either emergency or maintenance reasons, precautions should be taken to prevent damage to the cylinder. The hot water isolation valve located at the cylinder outlet should be closed off or the cylinder should be drained down as per the recommended procedure stated within this manual.

CAUTION:

Damage through excess pressure.

▶ Never restrict the outlets of any safety valves.

To ensure safe DHW outlet temperatures thermostatic mixing valves may be required. Guidance must be taken from current regulations.

Thermal disinfection

Guidance must be taken from current regulations to ensure the risk of

Legionella bacteria growth is prevented.

3.7.4

DHW expansion vessel

▶ Connect the expansion vessel to the cold water inlet control group using a suitable method to withstand the temperatures that could be reasonably expected to discharge into the expansion vessel. E.g.

Copper Pipe.

For DHW systems with a large volume:

▶ Check whether the expansion vessel supplied (12, 18 or 25 litres) is adequate and if required, install an additional expansion vessel in parallel to the one supplied, ensuring the air charge of each is identical.

3.7.5

Installing the discharge pipe work from the safety valves supplied

WARNING:

Risk of scalding!

Hot water can lead to severe scalding.

▶ Route the discharge pipe work so that any discharged hot water or steam cannot create a risk.

▶ Locate the cold water inlet control group so that any water flowing from the expansion relief anti-vac valve will be drained together with any water discharged from the temperature and pressure relief valve.

▶ Route the discharge pipework in accordance with part G3, schedule 1 of the Building Regulations (the following includes the most important requirements of the Building Regulations).

▶ Install the tundish vertically in direct proximity to the cylinder

(maximum distance between safety valves and tundish 600 mm).

▶ The discharge pipe work must be of a material capable of withstanding the potential temperatures and pressures.

▶ The following applies for the discharge pipe work downstream of the tundish:

– Minimum 300 mm vertical drop before the first bend.

– Must be at least one pipe size larger than the inlet of the tundish.

– Route the discharge pipe work with a constant fall.

▶ Install a drain valve at the cold water inlet.

3.7.3

DHW secondary circulation

Cylinders are equipped with a DHW secondary return connection

(SC 150 to SC 300 cylinders only).

▶ If no DHW secondary circulation is required, blank off and ensure a water tight seal (

fig. 2 [4], page 5).

Seal and insulate the connection.

▶ When connecting DHW secondary circulation:

Install a DHW circulation pump approved for potable water and a suitable non-return valve.

Due to the possibility of heat losses, DHW secondary circulation is only recommended in conjunction with a

DHW secondary circulation pump that is time or temperature-controlled. The circulation circuit must be properly insulated.

6 720 804 672 (2015/07) 11

Installation

3.7.6

Discharge Arrangement

A

B

F

C

D

E

Fig. 11 Diagram of a typical discharge pipe arrangement (extract from

Building Regulation G3)

A

B

C

D

E

F

Safety device (e.g. temperature relief valve)

Metal discharge pipe (D1) from temperature relief valve to tundish

Discharge pipe (D2) from tundish with continuous fall

Fixed grating

Trapped gulley

Tundish

Position the inlet control group so that the discharge from both the two safety valves can be joined together via a 15 mm end feed Tee. Connect the Tundish and route the discharge pipe. The discharge pipework must be routed in accordance with Part G3 of schedule 1 of the Building

Regulations. The information that follows is not exhaustive and if you are in doubt you should seek advice.

The two safety valves will only discharge water under fault conditions.

When operating normally water will not be discharged.

The tundish should be vertical, located in the same space as the unvented hot water storage system and be fitted as close as possible and within 600 mm of the safety device e.g. the temperature relief valve.

The discharge pipe (D2) from the tundish should terminate in a safe place where there is no risk to persons in the vicinity of the discharge and:

• Be at least one pipe size larger than the nominal outlet size of the safety device unless its total equivalent hydraulic resistance exceeds that of a straight pipe 9 m long i.e. discharge pipes between 9 m and

18 m equivalent resistance length should be at least two sizes larger than the the nominal outlet size of the safety device, between 18 and

27 m at least 3 sizes larger, and so on. Bends must be taken into account in calculating the flow resistance. Refer to Fig. 11, Table 8 and the worked example.

An alternative approach for sizing discharge pipes would be to follow

British specification standards for design installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages.

• Have a vertical section of pipe at least 300 mm long, below the tundish before any elbows or bends in the pipework.

• Be installed with a continuous fall.

• It is preferable for the discharge to be visible at both the tundish and the final point of discharge but where this is not possible or practically difficult there should be clear visibility at one or other of these locations. Examples of acceptable discharge arrangements are:

12

– Ideally below the fixed grating and above the water seal in a trapped gulley.

– Downward discharges at a low level; i.e. up to 100 mm above external surfaces such as car parks, hard standing, grassed areas etc. are acceptable providing that where children play or otherwise come into contact with discharges, a wire cage or similar guard is positioned to prevent contact whilst maintaining visibility.

– Discharges at a high level; e.g. in to metal hopper and metal down pipe with the end of the discharge pipe clearly visible (tundish visible or not) or onto a roof capable of withstanding high temperature discharges of water and 3 m from any plastic guttering systems that would collect such discharges (tundish available).

– Where a single pipe serves a number of discharges, such as in blocks of flats, the number served should be limited to not more than 6 systems so that any installation can be traced reasonably easily. The single common discharge pipe should be at least one pipe size larger than the largest individual discharge pipe to be connected. If unvented hot water storage systems are installed where discharges from safety devices may not be apparent i.e. in dwellings occupied by blind, infirm or disabled people, consideration should be given to the installation of an electronically operated device to warn when discharge takes place.

▶ The discharge may consist of scalding water and steam. Asphalt, roofing felt and non-metallic rainwater goods may be damaged by such discharges.

▶ It is not acceptable to discharge straight into a soil pipe.

6 720 804 672 (2015/07)

Installation

The table below is based on copper tube. Plastic pipes may be of different bore and resistance. Sizes and maximum lengths of plastic should be calculated using data prepared for the type of pipe being used.

Valve outlet size

Minimum size of discharge pipe D1

1)

Minimum size of discharge pipe D2

1)

from tundish

28 mm

35 mm

35 mm

42 mm

42 mm

54 mm

Table 8 Sizing of copper discharge pipe “D2” for common temperature relief valve outlet sizes

Maximum resistance allowed, expressed as a length of straight pipe

(i. e. no elbows or bends)

up to 9 m up to 18 m up to 27 m up to 9 m up to 18 m up to 27 m up to 9 m up to 18 m up to 27 m

1) see Fig. 11

Resistance created by each elbow or bend

0.8 m

1.0 m

1.4 m

1.0 m

1.4 m

1.7 m

1.4 m

1.7 m

2.3 m

Worked example:

The example below is for a G1/2 temperature relief valve with a discharge pipe (D2) having 4 No. 22 mm elbows and length of 7 m from the tundish to the point of discharge.

From Table 8:

Maximum resistance allowed for a straight length of 22 mm copper discharge pipe (D2) from a G1/2 temperature relief valve is: 9.0 m

Subtract the resistance for 4 No. 22 mm elbows at 0.8 m each = 3.2 m

Therefore the maximum permitted length equates to 5.8 m which, is less than the actual length of 7 m therefore calculate the next largest size of discharge pipe (D2).

Maximum resistance allowed for a straight length of 28 mm copper discharge pipe (D2) from a G1/2 temperature relief valve is: 18 m

Subtract the resistance for 4 No. 28 mm elbows at 1.0 m each = 4 m

Therefore the maximum permitted length equates to: 14 m

As the actual length is 7 m, a 28 mm (D2) copper pipe will be satisfactory.

3.8

Electrical connections

DANGER:

Risk of electric shock!

▶ Before making any electrical connections, disconnect the power supply (230 V AC) to the heating system.

▶ Make sure all terminal screws are properly tightened before commissioning especially on immersion heater line.

Connecting the indirect controls

The indirect thermal controls should be wired into a suitable indirect control system to ensure optimum control of the cylinder and boiler. All electrical work must conform to current IEE Wiring Regulation

(BS 3456).

For more in depth wiring instructions and diagrams reference must be made to the appropriate manufacturers installation instructions for the products installed along side this unit.

Products must be wired to meet all current regulations with regards to

G3.

6 720 804 672 (2015/07) 13

Installation

Fig. 12 Variant dual thermostat wiring: wiring diagram 2 port zone valve (S-plan)

6 720 645 525-04.2GX

Fig. 13 Variant dual thermostat wiring: wiring diagram 3 port mid position valve (Y-plan) + 2 port valve

14

6 720 645 525-10.3GX

6 720 804 672 (2015/07)

Installation

Using the Worcester optional Internal Diverter valve

• The installation will use the cylinder sensor supplied with the Integral

Diverter Valve kit to control the hot water temperature.

• The installation, therefore, will NOT need to use the hot water control thermostat of the cylinder's dual thermostat.

• The installation may require altered wiring of the dual thermostat

(depending on cylinder and thermostat manufacturer) to only use the high limit thermal cut-out of the dual thermostat.

• The high limit thermal cut out of the dual thermostat MUST be wired to interrupt the permanent live to the Greenstar i System or CDi

Classic System boiler.

• The 2-port valve supplied with the unvented cylinder will NOT be used. If it is already physically installed in the pipe work it should be removed and electrically disconnected from the wiring centre.

Greenstar CDI Classic System wiring example

230 V MAINS

SUPPLY

N E L

COMBINED THERMOSTAT

SAFETY LIMIT

THERMOSTAT

CONTROL

THERMOSTAT

Connector

Block

NOT REQUIRED

USE CYLINDER SENSOR SUPPLIED

IMPORTANT NOTE:

UNDER NO CIRCUMSTANCES SHOULD THE FEED TO THE

LIMIT STAT BE TAKEN THROUGH THE CONTROL STAT.

LEAVE LINK

L

R

L

S

N

S

N L

F

R

F

S

N

P

L

P

ST6

ST10

LEAVE LINK

Greenstar CDi Classic System boiler ONLY

ST10

F1

CYLINDER

TEMPERATURE

SENSOR

(SUPPLIED IN

DIVERTER KIT)

DIVERTER VALVE

MOTOR PLUG

F3

F2

6 720 804 672-08.1O

Fig. 14 Wiring to protect an unvented hot water cylinder from potentially dangerous high temperatures from the boiler circuit

6 720 804 672 (2015/07) 15

Installation

A F Outdoor sensor with FW100 only

EMS

Greenstar i System Compact wiring example

COMBINED THERMOSTAT

SAFETY LIMIT

THERMOSTAT

CONTROL

THERMOSTAT

Connector

Block

NOT REQUIRED

USE CYLINDER SENSOR SUPPLIED

IMPORTANT NOTE:

UNDER NO CIRCUMSTANCES SHOULD THE FEED TO THE

LIMIT STAT BE TAKEN THROUGH THE CONTROL STAT.

FR FS LR LR

230V

OUT

N L

N L N L N L

230V

IN

N L

230V Mains Voltage

Double Pole F used Spur

L

N

E

Cylinder

NTC Sensor

PRE WIRED LINK

WORCESTER TIME & TEMPERATURE CONTROL

Stand ard RF plug in fascia controls

OR

Intelligent controls

Fig. 15 Greenstar i System Compact wiring example

6 720 804 672-10.1GX

16 6 720 804 672 (2015/07)

Installation

Connecting the immersion heater (Heaters conform to

EN60335.2.73)

▶ Ensure the mains voltage corresponds to the voltage rating of the heater as shown on the rating label on the terminal cover.

▶ Only use rigid wires 1.5 mm

2

for main supply.

Flexible wire may cause poor electrical connection to the heater, resulting in overheat.

▶ When connecting the thermostat please ensure the male pins are securely located within the female sockets.

▶ Accessories (washers, cable grip, screws…) delivered in the plastic bag under the terminal cover of the heater have to be used to complete the connection to the earth and to fix the rigid cable.

It is essential that the water level within the tank or cylinder is such that water fully covers the heating elements to a depth of at least 100 mm.

Under no circumstances must the heater be permitted to run dry - serious damage may result to the heater in addition to danger of personal injury & damage to property.

Check the heater for possible leakage before wiring. See below for schematic wiring diagram.

Wire the heater through a double-pole fused spur, having contact separation of at least 3 mm, with a minimum breaking capacity of

13 Amps.

Use a rigid cable, 2 m long max, with 1.5 mm

2

cross-section and a temperature resistance of at least 85°C. Rubber Insulated HOFR

Sheathed, complying with BS6141 Table 8. It must be fully earthed.

Ensure all terminal connections are securely made. Do not however use excessive force when tightening the terminal screws.

NEMKO Approval will only apply to this heater if the Thermowatt RTS plus thermostat is used.

Immersion heater conforms with EEC Directive 76/889 for Radio

Interference and comply with BS800: 1977.

WIRING THE IMMERSION HEATER:

DANGER:

Risk of electric shock!

▶ Isolate from mains supply.

AQU-32-3W

Fig. 16 Wiring diagram

E

N

L

Earth (Green/Yellow)

Neutral (Blue)

Live (Brown)

105

E

20

8

90

N

E

L

L = 2 m max

(3x1.5 mm² - 85 °C)

AQU-33-3W

L

E

N

Fig. 17 Rigid cable end preparation

E

N

L

Earth (Green/Yellow)

Neutral (Blue)

Live (Brown)

▶ Provide 90 mm length for the Live (L) and Neutral (N) cables and bare the end of each cable 8 mm minimum.

▶ Provide 105 mm length for the Earth cable (E) and bare the end of the cable 20 mm minimum. Make a circle with the end of the Earth cable (E) to turn around the earth stud (1) to ensure a full contact between the cup washer (6) and the plain washer (4) (refer to the fitment of earth cable to stud).

▶ Fit the Live and Neutral cables on the thermostat.

▶ Remove the terminal cover from the immersion heater. Use the accessories supplied in the plastic bag located under the cover of the immersion heater to complete the wiring.

▶ This heater must be earthed.

Fig. 18 Fitment of earth cable to stud

[1] Earth stud

[2] Nuts (x2) *

[3] Shake-proof washer *

[4] Plain washer *

[5] Earth cable

[6] Cup washer *

[*] supplied in the plastic bag

6 720 804 672 (2015/07) 17

Commissioning

3

1

2

Fig. 19 Cable grip assembly

[1] Cable grip moulding *

[2] Pan head screws (x 2) *

[3] Head posi-drive screw *

[*] supplied in the plastic bag

▶ Fit two pan head screws into cable clamp on grip and secure with self tapping screw in the location hole in brass head of the immersion heater.

4 Commissioning

4.1

User information from the system installer

Explain to the customer how the boiler and the cylinder work and how to operate them.

▶ Advise the user regarding the need for regular maintenance, on which function and service life depend.

▶ When there is a risk of frost and the cylinder is taken out of use, drain the cylinder completely, including its lower section.

▶ Give the user all documentation.

▶ This appliance must only be operated by a responsible adult who has been instructed in, understands, and is aware of the appliance's operating conditions and effects.

4.2

Preparing for use

4.2.1

Filling the cylinder

Only a competent person must commission the system.

Prior to filling the cylinder:

▶ Check the pre-charge pressure of the expansion vessel (3 bar); topup if required.

▶ Flush the pipework as well as the cylinder with tap water.

▶ Fill the cylinder whilst a DHW draw-off point is fully open, until water flows steadily from it.

▶ Check all connections and the immersion heater fitting for tightness.

4.2.2

Setting the cylinder temperature

▶ Set the required cylinder temperature at the cylinder thermostat.

-or-

, on heating appliances with internal three-way valve,

▶ Set the required cylinder temperature in accordance with the operating instructions of the heating appliance.

WARNING:

Risk of scalding!

▶ In normal operation, do not set the temperature higher than 60 °C.

4.3

Commissioning of the heating appliance

▶ Commission the heating appliance in accordance with manufacturer's instructions or the appropriate installation and operating instructions.

5 Shutting down

NOTICE:

When draining either the domestic hot water system or the cylinder ensure the cold water supply is isolated and that at least two hot water draw off points are opened. One of these hot water draw off points must be the one closest to the cylinder in height terms.

The drain valve installed at the cold water supply inlet to the cylinder should be used, where practicable.

5.1

Taking the cylinder out of use

▶ Disable DHW heating in accordance with the operating instructions of the heating appliance (frost protection).

▶ When there is a risk of frost and the cylinder is taken out of use, drain the cylinder completely, including its lower section.

5.2

Draining the cylinder

To drain either the domestic water system or the cylinder:

▶ Ensure all connected heat source(s) and the electrical immersion heater are isolated to prevent damage occurring as a result of heating the cylinder while it is drained down.

▶ Isolate the cold water supply.

▶ Open all hot water draw off points.

▶ Attach a hose to the drain valve. The drain valve installed at the cold water supply inlet to the cylinder must be used where practicable.

▶ Drain the cylinder.

IMPORTANT

after draining the cylinder do not close the hot water draw off points until the cylinder has fully cooled. Failure to observe this instruction may result in damage to the cylinder that is not covered by the guarantee.

6 Environment / disposal

Environmental protection is a fundamental corporate strategy of the

Bosch Group.

The quality of our products, their efficiency and environmental safety are all of equal importance to us and all environmental protection legislation and regulations are strictly observed.

We use the best possible technology and materials for protecting the environment taking into account of economic considerations.

Packaging

We participate in the recycling programmes of the countries in which our products are sold to ensure optimum recycling.

All of our packaging materials are environmentally friendly and can be recycled.

Used appliances

Used appliances contain valuable materials that should be recycled.

The various assemblies can be easily dismantled and synthetic materials are marked accordingly. Assemblies can therefore be sorted by composition and passed on for recycling or disposal.

18 6 720 804 672 (2015/07)

7 Inspection/Maintenance

7.1

Recommendations for users

▶ Arrange a maintenance and inspection contract with a competent person. Have the heating appliance and the DHW cylinder serviced annually.

CAUTION:

A safety valve malfunction can result in excessive pressure levels.

▶ Check the function of the expansion relief anti-vac valve in the cold water inlet control group and the temperature and pressure relief valve, and flush several times by cracking them open.

7.2

Maintenance and repair

DANGER:

Risk of electric shock!

▶ Ensure all electrical supplies are isolated before carrying out any maintenance on the cylinder.

▶ Only use genuine spare parts!

7.2.1

Draining the cylinder

NOTICE:

▶ When draining either the domestic water system or the cylinder ensure the cold water supply is isolated and that all hot water draw off points are opened. The drain valve installed at the cold water supply inlet to the cylinder should be used, where practicable.

To drain either the domestic water system or the cylinder:

▶ Ensure all connected heat source(s) and the electrical immersion heater are isolated to prevent damage occurring as a result of heating the cylinder while it is drained down.

▶ Isolate the cold water supply.

▶ Open all hot water draw off points.

▶ Attach a hose to the drain valve. The drain valve installed at the cold water supply inlet to the cylinder must be used where practicable.

▶ Drain the cylinder.

IMPORTANT

after draining the cylinder do not close the hot water draw off points until the cylinder has fully cooled. Failure to observe this instruction may result in damage to the cylinder that is not covered by the guarantee.

7.2.2

Descaling / cleaning

In hard water areas

The level of scale build-up depends on the time in use, the operating temperature and the water hardness. Scaled-up internal indirect coils reduce the water content, lower the heat-up output, increase the energy consumption and extend the heat-up time.

▶ Subject to the level of scaling, descale the cylinder regularly.

When water hardness is over 450 ppm water treatement has to be considered (or annual service with descaling)

In soft water areas

▶ Check the inside of the cylinder regularly and clean out any sludge.

7.2.3

Immersion heater

If the thermal cut-out operates contact a competent installer to investigate and identify the cause of the fault. If the fault re-occurs after this investigation the immersion heater will need to be replaced.

When refitting an immersion heater, ensure the O-ring is positioned correctly on the head of the immersion heater and lubricate before

Inspection/Maintenance

fitting. Fit it by hand until almost home then tighten gently as the O-rings will seal easily.

7.2.4

Re-commissioning

▶ Flush the cylinder thoroughly after cleaning or repair.

▶ Vent the heating and DHW sides.

8

TT no.

Designation

8-716-850-617-0 High flow rate inlet control set (pressure reducing valve, strainer and expansion relief anti-vac valve)

8-716-113-408-0 Temperature and pressure relief valve 7 bar

8-716-113-409-0 Tundish (22mm x 15mm)

8-716-113-410-0 2 port valve

8-716-113-411-0 Dual thermostat

8-716-113-412-0 Immersion heater (same on all models)

8-716-850-607-0 12 litre expansion vessel (SC-90, SC-120 &

SC-150)

8-716-113-416-0 18 litre expansion vessel (SC-180, SC-210 &

SC-250)

8-716-113-418-0 25 litre expansion vessel (SC-300)

8-716-842-371-0 Connection set

8-716-850-618-0 6 bar expansion relief anti-vac valve

8-716-850-606-0 Instruction manual

Table 9

9

Spare parts list

The Guarantee

The Greenstore stainless steel cylinder carries a fully transferable 25 year guarantee against faulty material or manufacture subject to Terms

& Conditions. To read the full Terms & Conditions please visit us online at www.worcester-bosch.co.uk/guarantee. The Guarantee Registration form is available on this same page and can be completed and submitted electronically. Alternatively please telephone one of our Guarantee

Registration advisors on 0330 123 2552. Your statutory rights are not affected by the manufacturers guarantee.

6 720 804 672 (2015/07) 19

Notes

20 6 720 804 672 (2015/07)

NOTES

6 720 804 672 (2015/07) 21

MAINS PRESSURE HOT WATER STORAGE SYSTEM COMMISSIONING CHECKLIST

This Commissioning Checklist is to be completed in full by the competent person who commissioned the storage system as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.

Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.

Customer Name

Address

Cylinder Make and Model

Telephone Number

Cylinder Serial Number

Commissioned by

(print name)

Company Name

Company Address

Registered Operative ID Number

Telephone Number

Commissioning Date

To be completed by the customer on receipt of a Building Regulations Compliance Certificate * :

Building Regulations Notification Number

(if applicable)

ALL SYSTEMS PRIMARY SETTINGS

(indirect heating only)

Is the primary circuit a sealed or open vented system?

What is the maximum primary flow temperature?

Sealed

Open

°C

ALL SYSTEMS

What is the incoming static cold water pressure at the inlet to the system?

Has a strainer been cleaned of installation debris (if fitted)?

Is the installation in a hard water area (above 200ppm)?

If yes, has a water scale reducer been fitted?

What type of scale reducer has been fitted?

What is the hot water thermostat set temperature?

What is the maximum hot water flow rate at set thermostat temperature (measured at high flow outlet)?

Time and temperature controls have been fitted in compliance with Part L of the Building Regulations?

Type of control system (if applicable)

Is the cylinder solar (or other renewable) compatible?

What is the hot water temperature at the nearest outlet?

All appropriate pipes have been insulated up to 1 metre or the point where they become concealed

Y Plan

Yes

Yes

Yes

bar

No

No

No

S Plan

Yes

°C l/min

Yes

Other

No

°C

Yes

UNVENTED SYSTEMS ONLY

Where is the pressure reducing valve situated (if fitted)?

What is the pressure reducing valve setting?

Has a combined temperature and pressure relief valve and expansion valve been fitted and discharge tested?

The tundish and discharge pipework have been connected and terminated to Part G of the Building Regulations

Are all energy sources fitted with a cut out device?

Has the expansion vessel or internal air space been checked?

THERMAL STORES ONLY

What store temperature is achievable?

What is the maximum hot water temperature?

ALL INSTALLATIONS

The hot water system complies with the appropriate Building Regulations

The system has been installed and commissioned in accordance with the manufacturer’s instructions

The system controls have been demonstrated to and understood by the customer

The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer

Commissioning Engineer’s Signature

Customer’s Signature

(To confirm satisfactory demonstration and receipt of manufacturer’s literature)

*

All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme.

A Building Regulations Compliance Certificate will then be issued to the customer.

Yes

Yes

Yes

bar

No

Yes

No

No

Yes

Yes

Yes

Yes

°C

°C

©Heating and Hotwater Industry Council (HHIC) www.centralheating.co.uk

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Service Record

It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed.

Service Provider

Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.

Always use the manufacturer’s specified spare part when replacing controls.

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature: Signature:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Engineer Name:

Company Name:

Telephone No.

Operative ID No.

Comments:

Signature:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Engineer Name:

Company Name:

Telephone No.

Gas Safe Register No.

Comments:

Signature:

Worcester, Bosch Group

Cotswold Way, Warndon, Worcester WR4 9SW.

Tel. 0330 123 9559

Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd.

worcester-bosch.co.uk

6 720 804 672

WORCESTER, BOSCH GROUP:

TECHNICAL SUPPORT: 0330 123 3366

APPOINTMENTS:

SPARES:

0330 123 9339

0330 123 9779

LITERATURE:

TRAINING:

SALES:

0330 123 9119

0330 123 0166

0330 123 9669

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