Stuart Turner Mainsboost MB 100CV Leitfaden

- 1 –

Read this manual carefully before commencing installation.

This manual covers all Mainsboost vertical composite vessels.

Mainsboost Installation, Operation &

Maintenance Instructions

Please leave this instruction booklet with the home owner as it contains

important warranty, maintenance and safety information

CE compliant product

WARRANTY

MAINSBOOST

- 2 –

PRODUCT DESCRIPTION

Mainsboost consists of one key assembly, the Mainsboost vessel complete with

upstream line-in kit.

APPLICATION

Mainsboost is designed to offer stored clean, potable cold water under pressure for all

domestic or small commercial applications where mains water is insufficient to offer

consistent and reliable water services.

Installation parameters must not exceed the values given in the technical

specifications.

STORAGE

If this product is not to be installed immediately on receipt, ensure that it is stored in a

dry, frost and vibration free location in its original packaging.

CONTENTS Page

Checklist ...........................................................4

Introduction .........................................................5

Important Facts – read before commencing installation ......................6

Location ............................................................7

Terminology .........................................................8

Configuration ........................................................9

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

Commissioning ......................................................14

Technical Specification ................................................15

Trouble Shooting .....................................................16

Warranty ...........................................................17

- 3 –

WARNINGS:

zMainsboost systems must not be used for any other

application without the written consent of Stuart

Turner Limited.

zThis 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 use of the

appliance in a safe way and understand the hazards

involved.

zChildren shall not play with the appliance.

zCleaning and user maintenance shall not be made by

children without supervision.

zEnsure the floor is sufficiently strong enough to

take the total weight of the unit when full of water

(see Technical Specification section). Take care when

manoeuvring the unit so as not to damage it.

zEnsure the unit is fixed to the floor using suitable

fixings to avoid risk of toppling over.

zTo prevent personal injury, ensure all water pressure

is released from the pressure system prior to

work being performed. Ensure pumps are

disconnected and/or electrically isolated.

zIt is strongly recommended that the system is

protected by a suitable pressure relief valve set at

or below the maximum vessel pressure rating. Failure

to install a pressure relief valve may result in vessel

explosion in the event of a system malfunction or

over pressurisation, resulting in property damage,

serious personal injury or death.

zIf the Mainsboost vessel leaks or shows signs of

corrosion or damage do not use it.

Please read the installation details carefully as they are intended to ensure this

product provides long, trouble free service. Failure to install the unit in accordance

with the installation instructions will lead to invalidation of the warranty. These

instructions must be left with the product.

- 4 –

CHECKLIST

Your product may vary slightly from the illustrations above.

Package 1a

Monobloc 22/28mm Upstream line-in kit

Fig. 1a

IMPORTANT: Your Mainsboost water performance system will be delivered in a

minimum of two boxes on one pallet. Please check the contents within 24 hours

of receipt and if any component is damaged, please contact Stuart Turner Ltd

immediately.

Package 2

Mainsboost vessel

Fig. 2

Package 1b

Upstream line-in kit 35mm, 42mm, 54mm variants

Fig. 1b

- 5 –

1 INTRODUCTION

1.1 Congratulations on choosing a Mainsboost system, designed to offer

consistent and reliable water services throughout the property.

1.2 Trademarks & Trade Names

‘Mainsboost’ ‘Mainsboost Plus’ and ‘Mainsboost Charger’ are registered

Trademarks of Stuart Turner Ltd.

1.3 How the Mainsboost System works

The Mainsboost vessel stores water from the rising main in a sealed water

chamber, separated from the air space by a rubber diaphragm and

pressurised to an optimum setting. When water is drawn off by downstream

services, the water from the mains is supplemented by the water from the

Mainsboost unit to provide a balanced supply at consistent pressure to

downstream services.

Item Description Qty Item Description Qty

Package

1 Monobloc unit 1

Package

1¼ “ BSP pressure

gauge 1

2 ¼ “ BSP Pressure gauge 2 2 Lever isolating ball

valve 1

3 Lever isolating ball valve 1 3 Mainsboost vessel

connector fitting 1

4Mainsboost vessel

connector fitting 1 4 6 bar pressure

regulating valve 1

522/28mm compression

adaptor 2 5 ¼ x ½ “ BSP Brass

bush 1

Item Description Qty 6Y pattern inline

strainer 1

Package

21Mainsboost vessel 1 7 Double check valve 1

8¼ “ BSP Pressure

gauge 1

- 6 –

2 IMPORTANT FACTS READ BEFORE COMMENCING INSTALLATION

A Water temperature

This unit is designed for cold water applications only which should not exceed the

following values:

2.11 The maximum allowable water temperature is 35 oC.

2.12 The minimum allowable water temperature is 4 oC.

B Pipework – General

2.13 Secure pipework: Ensure pipework to and from the Mainsboost is

independently supported & clipped to prevent forces being transferred.

2.14 Flux: Solder joints must be completed and flux residues removed prior to

completing the installation (flux damage will void any warranty).

2.15 Pipework design: Care should be taken in the design of pipework runs to

minimize the risk of air locks e.g. use drawn bends rather than 90obends.

C Plumbing Installation Regulations

2.16 The plumbing installation must comply with the current water and building

regulations.

2.17 The plumbing installation must be installed by a qualified person.

D Mainsboost vessel

2.18 Ensure the Mainsboost vessel is installed correctly before operating the unit,

to avoid damage.

Do not attempt to dismantle the Mainsboost vessel

The Mainsboost vessel is pressurised to a pre-set level at the factory see

Section 7.11 – Commissioning for details.

- 7 –

3 LOCATION  GENERAL

3.11 Access: For emergencies and maintenance the Mainsboost must

be easily accessible.

3.12Protection: The system must be located in a dry position, and

protected from freezing. Avoid environments which have a high

ambient temperature, high humidity or excessive condensation

and salt damage, etc.

3.13 Incoming mains water pressure: An incoming water pressure of at least 2.0

bar is required and should not exceed 5 bar. (If mains pressure is below 2.0

bar the Mainsboost vessel should be supplemented with a pump unit, contact

Stuart Turner for details).

3.14 Ensure that location of the unit allows adequate space to give reasonable

access to all parts to accommodate service/commissioning.

3.15 Pipework: Pipework should be sized to ensure optimum performance of the

system.

3.16 Direction of flow: See Fig. 3 to identify the suction and discharge

connections.

- 8 –

4 TERMINOLOGY

4.11 Upstream Line-in Kits (ULK)

Monobloc upstream line-in kit:

The Mainsboost Monobloc is a patent pending mains regulating device

and should be installed on the rising main between the stopcock and the

Mainsboost vessel. The Monobloc unit is used on 22mm or 28mm upstream

line in kits.

Upstream line-in kits:

Upstream line-in kits for 35mm, 42mm & 54mm installations use separate

regulating components and should be installed on the rising main between

the stopcock and the Mainsboost vessel.

4.12 System designation

It is important to understand what upstream and downstream refers to before

starting the installation.

Upstream

The term ‘Upstream’ refers to the system configuration from the consumer’s

stopcock to the point where the supply reaches the inlet port of the

Mainsboost vessel.

Downstream

The term ‘Downstream’ refers to the system configuration from the outlet

tapping on the Mainsboos vessel, along the distribution header (if configured

in this way) and into the distribution pipework and outlets. This includes hot

and cold services where both are present (see Fig. 3).

Fig. 3 System designation

Direction of flow

UPSTREAM

LINE-IN KIT

- 9 –

5 CONFIGURATION

5.11 Mainsboost is a very flexible solution, offering a packaged system to suit any

type or size of building no matter how large or small the demand.

The following illustrations depict some of the most typical installations.

5.12 Single occupancy application

Use of Mainsboost in a house

offers water on demand whilst

giving maximum flexibility. As

can be seen the upstream

line-in kit has to be fitted on to

the rising main but the vessels

can be fitted wherever there is

a space, for example; utility,

kitchen, upstairs cupboard or

loft, providing adequate

provisions are taken for the

weight, frost protection etc

(see Fig 4).

5.13 Multiple occupancy application

Often affected by poor water

supplies Mainsboost offers the

perfect solution. For multiple

occupancy buildings again the

upstream line-in kit is located

next to the rising main and

sized to meet the demand of

the entire building. Each

apartment then has its own

vessel located within the

property, sized to meet the

apartments own demand

(see Fig. 5).

UPSTREAM

LINE

IN KIT 









-g 1/









I ·� 



�

. 

I,  I





I 



Fig. 5

UPSTREAM

LINE-IN KIT

Fig. 4

- 10 –

5.14 High demand single occupancy application:

Where single properties have a much higher demand, it may be necessary to

use additional Mainsboost vessels connected in parallel to ensure sufficient

water is on tap to meet the much higher demand. Fig. 6 shows all vessels

being located in the same place.

5.15 Water softener:

Note: If a water softener is to be fitted it must be located between the

upstream line-in kit and the vessel. If high pressure is also required to the

drinking tap fit a Stuart Water Conditioner, available from Stuart Turner, rather

than a water softener.

UPSTREAM

LINE-IN KIT

Fig. 6

UPSTREAM

LINE IN KIT

Fig. 7

Water softener

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