Vaillant UniSTOR HP VIH RW GB BES Series Bedienungsanleitung

Installation and maintenance instructions

uniSTOR HP

VIH RW GB ... BES

GB, IE

Publisher/manufacturer

Vaillant GmbH

Berghauser Str. 40 D-42859 Remscheid

Tel. +492191 18 0 Fax +492191 18 2810

[email protected] www.vaillant.de

Contents

2Installation and maintenance instructions uniSTOR HP 0020221303_02

Contents

1 Safety .................................................................... 3

1.1 Action-related warnings ......................................... 3

1.2 Risk caused by inadequate qualifications.............. 3

1.3 Intended use .......................................................... 3

1.4 General safety information .................................... 3

1.5 Regulations (directives, laws, standards) .............. 4

2 Notes on the documentation .............................. 5

2.1 Observing other applicable documents ................. 5

2.2 Storing documents................................................. 5

2.3 Validity of the instructions...................................... 5

2.4 Benchmark............................................................. 5

3 Product description............................................. 5

3.1 Serial number ........................................................ 5

3.2 Information on the identification plate.................... 5

3.3 CE marking ............................................................ 5

3.4 Hot Water Association ........................................... 6

4 Set-up.................................................................... 6

4.1 Observing the requirements for the product's

installation site ....................................................... 6

4.2 Transport ............................................................... 6

4.3 Unpacking the product........................................... 7

4.4 Checking the scope of delivery.............................. 7

4.5 Product dimensionsSlimline .................................. 7

4.6 Product dimensions, standard diameter ................ 8

5 Installation............................................................ 8

5.1 Installing the product.............................................. 8

5.2 Hydraulic connection ............................................. 8

5.3 Electrical installation ............................................ 11

6 Start-up ............................................................... 14

6.1 Setting the immersion heater thermostat............. 14

6.2 Cold water inlet pressure..................................... 14

6.3 Filling and purging the product ............................ 14

6.4 Filling and purging the primary circuit.................. 14

7 Handing the product over to the end user ...... 15

8 Troubleshooting ................................................ 15

8.1 Detecting and eliminating faults........................... 15

8.2 Procuring spare parts .......................................... 15

9 Inspection and maintenance ............................ 15

9.1 Observing inspection and maintenance

intervals ............................................................... 15

9.2 Draining the product ............................................ 15

9.3 Checking the safety group's expansion relief

valve and the cylinder's expansion relief valve .... 15

9.4 Checking the pre-charge pressure of the

expansion vessel ................................................. 15

10 Decommissioning the product......................... 15

11 Customer service............................................... 15

Appendix ............................................................................ 16

A Detecting and eliminating faults ...................... 16

B Inspection and maintenance work –

Overview............................................................. 16

C Technical data.................................................... 17

D Commissioning Checklist................................. 19

Index ................................................................................... 22

Safety 1

0020221303_02 uniSTOR HP Installation and maintenance instructions 3

1 Safety

1.1 Action-related warnings

Classification of action-related warnings

The action-related warnings are classified in

accordance with the severity of the possible

danger using the following warning signs and

signal words:

Warning symbols and signal words

Danger!

Imminent danger to life or risk of

severe personal injury

Danger!

Risk of death from electric shock

Warning.

Risk of minor personal injury

Caution.

Risk of material or environmental

damage

1.2 Risk caused by inadequate

qualifications

The following work must only be carried out

by competent persons who are sufficiently

qualified to do so:

–Set-up

–Dismantling

–Installation

–Start-up

–Inspection and maintenance

–Repair

–Decommissioning

▶Proceed in accordance with current tech-

nology.

1.3 Intended use

There is a risk of injury or death to the user or

others, or of damage to the product and other

property in the event of improper use or use

for which it is not intended.

The product is intended as a system com-

ponent for domestic hot water generation and

storage for closed central heating installa-

tions.

Intended use includes the following:

–observance of accompanying operating,

installation and maintenance instructions

for the product and any other system com-

ponents

–installing and setting up the product in ac-

cordance with the product and system ap-

proval

–compliance with all inspection and main-

tenance conditions listed in the instruc-

tions.

Intended use also covers installation in ac-

cordance with the IP code.

Any other use that is not specified in these

instructions, or use beyond that specified in

this document, shall be considered improper

use. Any direct commercial or industrial use

is also deemed to be improper.

Caution.

Improper use of any kind is prohibited.

1.4 General safety information

1.4.1 Risk of death due to lack of safety

devices

The basic diagrams included in this docu-

ment do not show all safety devices required

for correct installation.

▶Install the necessary safety devices in the

installation.

▶Observe the applicable national and inter-

national laws, standards and directives.

1.4.2 Risk of death from electric shock

There is a risk of death from electric shock if

you touch live components.

Before commencing work on the product:

▶Disconnect the product from the power

supply by switching off all power supplies

at all poles (electrical partition with a con-

tact gap of at least 3 mm, e.g. fuse or cir-

cuit breaker).

▶Secure against being switched back on

again.

▶Check that there is no voltage.

1.4.3 Risk of being burned or scalded by

hot components

▶Only carry out work on these components

once they have cooled down.

1 Safety

4Installation and maintenance instructions uniSTOR HP 0020221303_02

1.4.4 Risk of material damage caused by

using an unsuitable tool

▶Use the correct tool.

1.4.5 Risk of material damage caused by

frost

▶Do not install the product in rooms prone

to frost.

1.4.6 Risk of injury due to the heavy weight

of the product

▶Make sure that the product is transported

by at least two people.

1.5 Regulations (directives, laws,

standards)

▶Observe the national regulations, stand-

ards, directives, ordinances and laws.

Notes on the documentation 2

0020221303_02 uniSTOR HP Installation and maintenance instructions 5

2 Notes on the documentation

2.1 Observing other applicable documents

▶Always observe all the operating and installation instruc-

tions included with the system components.

2.2 Storing documents

▶Pass these instructions and all other applicable docu-

ments on to the end user.

2.3 Validity of the instructions

These instructions apply only to:

Product article number

VIH RW GB 150 BES 0010019230

VIH RW GB 200 BES 0010019231

VIH RW GB 250 BES 0010019232

VIH RW GB 300 BES 0010019233

2.4 Benchmark

Vaillant is a licensed member of the Benchmark Scheme.

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 a competent person approved

at the time by the Health and Safety Executive and that it

meets the requirements of the appropriate Building Regu-

lations. The Benchmark Checklist can be used to demon-

strate compliance with Building Regulations and should be

provided to the customer for future reference.

Installers are required to carry out installation, commission-

ing 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.

Benchmark is managed and promoted by the Heating and

Hotwater Industry Council.

For more information visit www.centralheating.co.uk

3 Product description

3.1 Serial number

You can find the serial number on the data plate (1), which is

located on the cylinder below the electronics box.

3.2 Information on the identification plate

The identification plate is attached to the product at the fact-

ory.

The identification plate keeps record of the country in which

the product is to be installed.

This product meets the requirements of standard EN

12897:2006.

3.3 CE marking

The CE marking shows that the products comply with the

basic requirements of the applicable directives as stated on

the declaration of conformity.

The declaration of conformity can be viewed at the manufac-

turer's site.

4 Set-up

6Installation and maintenance instructions uniSTOR HP 0020221303_02

3.4 Hot Water Association

Vaillant is a full member of the Hot Water Association and

promotes the scheme in association with its cylinder range.

Details are available on the web site www.vaillant.co.uk

4 Set-up

4.1 Observing the requirements for the

product's installation site

Caution.

Material damage due to frost

If the water in the system freezes, there is

a risk of damage to the domestic hot water

cylinder.

▶Install the cylinder in a dry, permanently

frost-free room.

Caution.

Material damage due to escaping water

In the event of damage, water may escape

from the cylinder.

▶Select the installation location so that, in

the event of damage, large volumes of

water can be drained safely (e.g. into a

floor drain).

Caution.

Material damage due to high load

When filled, the cylinder may damage the

ground on which it stands due to its weight.

▶Take into consideration the weight of the

filled cylinder and the load-bearing capa-

city of the floor.

▶If required, reinforce the installation area.

Select a sensible installation site and take into consideration

the routing of the pipework system.

Install the cylinder as close as possible to the heat generator

in order to minimise heat losses.

Set up the product in a suitable location in a room and, when

doing so, pay attention to the following points:

–Plan the installation of the tundish (→Page 9).

–The installation surface must be even and have sufficient

load-bearing capacity to support the operating weight of

the product.

–The installation site must be frost-free.

–Install the product in such a way that the thermostat and

immersion heater can be accessed easily.

–Leave sufficient space around the product for installing,

maintaining and replacing the expansion vessel.

To prevent heat losses, the pipework system must have heat

insulation in accordance with the applicable energy-saving

regulations.

4.2 Transport

Caution.

Risk of material damage caused by incor-

rect transport.

The components attached to the cylinder

must not be used to transport the cylinder.

Otherwise there is a risk that the cylinder

could malfunction.

▶Do not use the components attached to

the cylinder to transport it.

Always transport the unit as illustrated above.

Never transport the unit while it is horizontal.

Set-up 4

0020221303_02 uniSTOR HP Installation and maintenance instructions 7

4.3 Unpacking the product

1. Remove the product from its box.

2. Remove the protective film from all of the product's

components.

Caution.

Risk of material damage caused by un-

packing incorrectly.

The components could become damaged

when unpacking the product.

▶Carefully unpack the product.

3. Remove the product from its box.

4. Remove the protective film from all of the product's

components.

4.4 Checking the scope of delivery

▶Check that the scope of delivery is complete.

Quant-

ity

Designation

1 Domestic hot water cylinder

1 Enclosed documentation

1 Expansion vessel

4.5 Product dimensionsSlimline

Validity: VIH RW GB 150 BES

Ø 435

172

523

797

452

Dimensions (mm)

A B C

VIH RW GB

150 BES 1,642 1,613 1,377

5 Installation

8Installation and maintenance instructions uniSTOR HP 0020221303_02

4.6 Product dimensions, standard diameter

Validity: VIH RW GB 200 BES

OR VIH RW GB 250 BES

OR VIH RW GB 300 BES

Ø 595

641

265

154

90°

694

Dimensions (mm)

A B C D

VIH RW GB

200 BES 1,265 940 675 470

VIH RW GB

250 BES 1,535 1,210 865 565

VIH RW GB

300 BES 1,745 1,420 865 565

5 Installation

5.1 Installing the product

▶Align the product horizontally.

5.2 Hydraulic connection

Caution.

Risk of damage caused by heat transfer

when welding.

The heat that is transferred during welding

may damage the cylinder and its components

as well as the connection seals.

▶Protect the product and its components.

▶Do not weld the connection pieces if these

have been screwed into the pipe fittings.

Caution.

Risk of material damage by drilling

through the product.

The product may be damaged by drilling

work.

▶Do not drill through the product.

Caution.

Risk of material damage to the cylinder.

If an unvented hot water cylinder is fitted at

a high level (eg, loft space), potential dam-

age to the cylinder may occur if the correct

method of draining is not followed.

▶In certain circumstances and at the dis-

cretion of the installer, install a WRAS ap-

proved automatic air vent on the hot water

outlet at the highest point.

Installation 5

0020221303_02 uniSTOR HP Installation and maintenance instructions 9

1 Cylinder heating return

2 Tundish

3 Safety group

4 Cold water inlet

5 Domestic hot water

expansion relief valve

6 Domestic hot water

outlet

7 Cylinder heating inlet

8 3-port motorised valve

9 Heating circuit heating

flow

10 Dry pocket for the tem-

perature sensor

11 Heating flow from the

heat pump

12 Drain valve

5.2.1 Connecting the product to the brine circuit

▶Connect the brine circuit to the product.

–Minimum diameter of the copper pipe: ≥28 mm

Note

Ensure that the distance between the heat

generator and the product is as small as pos-

sible in order to prevent heat losses.

5.2.2 Installing an expansion vessel

1. Install the expansion vessel close to the product.

2. Install a pipe at the expansion vessel and connect the

terminal to the safety group.

5.2.3 Connecting the installation's cold water

supply

▶Connect the cold water inlet to the safety group.

5.2.4 Installing a discharge pipe

≤ 600 mm

≥ 300 mm

1 Temperature and pres-

sure expansion relief

valve

2 Tundish

The drain connections of the temperature and pressure re-

lief valve and the expansion relief valve must be connected

to the supplied tundish via 15-mm-thick copper pipes. The

tundish must be installed vertically, as close to the cylinder

as possible and with a maximum clearance of 600 mm from

the connection of the temperature and pressure relief valve.

It must be installed in the same room as the cylinder, but at

a sufficient distance from electrical components. The drain

pipes from the temperature and pressure relief valve and

from the expansion relief valve can be connected above the

tundish using a T-piece. The drain pipe from the 22 mm con-

nection of the tundish must consist of copper pipes with a

diameter of at least 22 mm and be connected to a safe and

visible drainage point. The vertical section of pipe beneath

the tundish must be at least 300 mm long before any bends

or diversions in the line. If the total resistance of the drain

pipework exceeds the values in the following table, you must

increase the diameter of the pipework. When installing the

drain pipework, comply with the standards, directives and

laws that are applicable in your country.

Size of

the outlet

valve

Minimum

diameter

of the

discharge

pipe D1

Minimum

diameter

of the dis-

charge

pipe from

the tun-

dish D2

Maximum

permiss-

ible res-

istance,

inform-

ation

on the

length of

a straight

pipe

Resist-

ance per

elbow or

bend

1/2" 15 mm

22 mm

28 mm

35 mm

9 mm

≤18 m

≤27 m

0.8 m

1.0 m

1.4 m

3/4" 22 mm

28 mm

35 mm

42 mm

≤9 m

≤18 m

≤27 m

1.0 m

1.4 m

1.7 m

1" 28 mm

35 mm

42 mm

54 mm

≤9 m

≤18 m

≤27 m

1.4 m

1.7 m

2.3 m

Sample calculation

The following example corresponds to a temperature and

pressure relief valve G1/2 with a drain pipe (D2) with four 22

mm elbows and a length of 7 m from the tundish to the drain-

5 Installation

10 Installation and maintenance instructions uniSTOR HP 0020221303_02

age point. According to the table, the maximum permiss-

ible resistance for a straight length of a 22-mm-thick cop-

per discharge pipe (D2) of a thermal expansion relief valve

G1/2 is 9.0 m. The resistance of the four 22 mm elbows,

which are each 0.8 m in length, must be subtracted from this,

i.e. a total of 3.2 m. The maximum permitted length is ac-

cordingly 5.8 m and is therefore below the current length of

7 m. The calculation must therefore be performed using the

second largest size. The maximum permissible resistance

for a straight length of a 28-mm-thick pipe (D2) of a thermal

expansion relief valve G1/2 is 18 m. The resistance of the

four 28 mm elbows, which are each 1.0 m in length, must be

subtracted from this, i.e. a total of 4.0 m. The maximum per-

mitted length is accordingly 14 m. As the current length is

7 m, a 28 mm copper pipe (D2) should be selected.

A suitable location for the discharge pipe terminal is, for

example, beneath a fixed mesh above the odour trap in a

soakaway with a siphon. Low drain pipework, for example

up to 100 mm above external surfaces (car parks, mead-

ows, etc.) can be used provided that it is protected by a wire

fence or something similar to prevent children from coming

into contact with the waste water and provided that the sys-

tem is not visible. Do not install any valves or stopcocks on

the drain pipework.

Make sure that the discharge pipe from the tundish to the

drain has a constant downward gradient of at least 1:200.

The discharge pipe for the heat generator expansion relief

valve can be connected to the horizontal discharge pipe for

the cylinder behind the tundish using a T-piece.

5.2.4.1 High-level drain

Installing the highest drain is permitted as long as this does

not present a danger to anyone in or outside the building at

the drain point. Examples of points to consider when decid-

ing whether a location is suitable for the highest drain:

–The possibility (taking the wind into account) that a per-

son might stay in the area where the water is drained

for a prolonged period of time, and, if this is the case,

whether the water is sufficiently cooled by that point to

pose no danger. The thermal conductivity of the material

surfaces, the climatic conditions, the installation location

and the drain pipework direction can, to different extents,

contribute to reducing the temperature of the water that is

being drained.

–The position of the windows and other openings.

–The probability of prams being under the drain opening.

–The resistance of the surface to hot water.

–The possibility of ice forming if water drains onto access

paths.

5.2.5 Installing the temperature sensor for the

immersion heater

Note

The temperature sensor is used to control the

immersion heater via a multi-functional module

or a control.

Validity: Except for VIH RW GB 150 BES

Condition: With a multi-functional module or control

▶Secure the temperature sensor.

Validity: VIH RW GB 150 BES

Condition: With a multi-functional module or control

▶Secure the temperature sensor.

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