Vaillant VWZ MEH 61 Einrichtungshandbuch

VWZ MEH 61

Installation instructions and instructions for use

For the competent person and the operator

Installation instructions and instructions for use

Installation instructions and instructions for use VWZ MEH 61 0020166663_03

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

1.1 Intended use .............................................................3

1.2 Symbols used............................................................3

1.3 Qualiﬁcations.............................................................3

1.4 General safety advices..............................................3

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

1.6 Rules and regulations ...............................................4

1.7 CE Mark ....................................................................5

2 Notes on the documentation..................................6

2.1 Observe other applicable documents........................6

2.2 Storing documents ....................................................6

2.3 Validity of the instructions..........................................6

3 Description of the product.....................................6

3.1 Product structure.......................................................6

3.2 Type designation and serial number .........................6

3.3 Data plate description ...............................................7

4 Mounting and installation.......................................7

4.1 Preparing the mounting and installation....................7

4.2 Mounting the product ................................................8

4.3 Hydraulic installation .................................................9

4.4 Electrical Installation ...............................................10

4.5 Cableway and passage...........................................12

5 Start-up ..................................................................12

5.1 Filling the appliance ................................................13

5.2 Purging the appliance .............................................13

5.3 Installing the casing.................................................14

5.4 Handing over the product to the user......................14

6 Repair work............................................................14

6.1 Spare parts..............................................................14

6.2 Draining the product................................................14

6.3 Resetting the Electrical back-up heater ..................15

6.4 Checking tightness..................................................15

6.5 Checking the electrical installation .......................... 15

7 Decommissioning.................................................15

8 Recycling and disposal........................................15

9 Technical data ......................................................15

10 Appendix................................................................16

TABLE OF CONTENTS

1 Safety

This manual is also available on our web

site.

www.vaillant.com

1.1 Intended use

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 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.

1.2 Symbols used

The warning notes are classiﬁed in

accordance with the severity of the possible

danger using the following warning signs and

signal words.

Warning

symbol Explanation

aDanger!

Immediate danger to life or risk

of severe personal injury.

eDanger!

Risk of death from electric shock.

aWarning!

Risk of minor personal injury.

bCaution!

Risk of material or environmental

damage.

1.3 Qualiﬁcations

Any work carried out must be by suitably

qualiﬁed personnel.

►Incorrect installation can cause damage to

the unit, to the site or injury to others.

1.4 General safety advices

1.4.1 Danger to life by electric shock

Touching live connections can cause serious

personal injury.

►Before carrying out any work on the

product, switch off the power supply.

►Secure the power supply against being

switched on again.

1.4.2 Danger to life due to missing

or not properly working safety

devices

Missing safety devices can cause life-

threatening scalding and other injuries, for

example by burst pipes.

The information contained in this document

do not show all schemes required for a

professional installation of safety devices.

►Install the necessary safety devices in the

system.

►Inform the user about the function and

location of safety devices.

►Observe the relevant national and

international laws, standards and

guidelines.

1.4.3 Risk of material damage by

additives in the heating water

Frost and corrosion protection agents can

cause changes to seals, noise during heating

mode and may lead to other consequential

damage.

►Do not use any unsuitable frost or

corrosion protection agents.

1.4.4 Risk of material damage caused

by unsuitable tools

The use of unsuitable tools or improper use

thereof may cause damage, such as gas or

water leaks.

►When tightening or loosening threaded

connections, always use suitable opened

spanners, but do not use pipe wrenches,

extensions, etc.

SAFETY

0020166663_03 VWZ MEH 61 Installation instructions and instructions for use

1.4.5 Risk of structural damages by

escaping water

Incorrect installation can cause leakages.

►Make sure there are no stresses in the

hydraulic lines.

►Correctly position the seals.

1.5 Intended use

The product is a state-of-the-art product

which has been constructed in accordance

with recognised safety regulations.

Nevertheless, there is still 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 appliance is intended to be used for

booster heating in systems used with a heat

pump.

Intended use includes the following:

-observing the included operating,

installation and maintenance instructions

for this product and any other parts and

components of the system

-installing and ﬁtting the product in

accordance with the product and system

approval

-complying with all of the inspection and

maintenance conditions listed in the

instructions.

The appliance should be installed in a place

where it will not be exposed to damp or

water splashes. Comply with the electrical

protection index (IP) shown in the technical

data.

Any other use than the use described in the

instructions at hand or any use extending the

described use is not intended.

Any direct commercial or industrial use is

also deemed to be improper.

1.6 Rules and regulations

1.6.5.1 IMPORTANT

Where no British Standards exists, materials

and equipment should be ﬁt for their purpose

and of suitable quality and workmanship.

The installation of this heating appliance

must be carried out by a competent person

approved at the time by the Health and

Safety Executive and in accordance with the

rules in force in the countries of destination.

Manufacturer’s instructions must not be

taken as overriding statutory requirements.

1.6.5.2 Statutory Requirements

In GB, the installation of the heating

appliance must be carried out by a

competent person approved at the time by

the Health and Safety Executive and as

described in the following regulations:

- The manufacturer’s instructions supplied.

- The appropriate Buildings Regulations

either The Building Regulations, The Building

Regulations (Scotland), The Building

Regulations (Northern Ireland).

- The Water Supply (water ﬁttings)

Regulations 1999 and water byelaws 2000,

Scotland.

- The Health and Safety at Work Act,

Control of Substances Hazardous to Health

(COSHH).

- Any electrical work must conform to BS

7671 and where applicable Part P of the

building regulations.

Where no speciﬁc instructions are given,

reference should be made to the relevant

British Standard Code of Practice.

In IE, the installation must be carried out by

a competent person approved at the time by

the Health and Safety Executive and installed

in accordance with the current edition of

I.S.813 “Domestic Gas Installations”, the

current Building Regulations and reference

should be made to the current ETCI rules for

Electrical Installation.

GB: the following Codes of Practice apply:

BS4814, BS6798, BS5440 Part 1 and 2,

BS5546 Part 1, BS5449, BS6891, BS6700,

SAFETY

Installation instructions and instructions for use VWZ MEH 61 0020166663_03

BS7074 Part 1 and 2, BS7593, BS7671.

IE: I.S.813, BS5546, BS 5449, BS 7074, BS

7593.

NOTE: For further information, see the

current issue of the Building Regulations,

approved document L1 ( in the UK) and the

following current issues of:

1) Central heating system speciﬁcation

(CheSS) and

2) Controls for domestic central heating

system and hot water. BRECSU.

1.6.5.3 Heating System

In GB, it is necessary to comply with the

Water Supply (Water Fittings) Regulations

1999 (for Scotland, the Water Byelaws

2000, Scotland). To comply with the Water

regulations your attention is drawn to: The

Water Regulations guide published by the

Water Regulations Advisory Service (WRAS)

gives full details of the requirements.

In IE, the requirements given in the

current edition of I.S.813 “Domestic Gas

Installations” and the current Building

Regulations must be followed.

1.6.5.4 Electrical Supply

The heating appliance MUST be earthed. All

system components shall be of an approved

type and all wiring to current I.E.E. wiring

regulations. External wiring must be correctly

earthed, polarised and in accordance with

the relevant standards.

In GB, this is BS 7671.

In IE, this is the current edition of ETCI rules.

The heating appliance MUST be connected

to a permanent 230V ac, 50Hz supply.

Connection of the whole electrical system of

the heating appliance, including any heating

controls, to the electrical supply MUST be

through one common isolator and must be

fused 30 Amp maximum.

Isolation should be by a double pole switched

fused spur box, with a minimum gap of 3mm

for both poles. The fused spur box should be

readily accessible and preferably adjacent to

the appliance. It should be identiﬁed as to its

use.

Alternatively connection can be made

through an unswitched shuttered socket and

3A fused 3-pin plug both to the current issue

of BS 1363, provided they are not used in a

room containing a bath or shower.

Wiring to the heating appliance must be PVC

85OC insulated cable, not less than 3 G4.

1.6.5.5 Control of Substances Hazardous

to Health

Under Section 6 of The Health and Safety at

Work Act 1974, we are required to provide

information on substances hazardous to

health. The adhesives and sealants used in

this appliance are cured and give no known

hazard in this state.

1.7 CE Mark

The CE mark indicates that the appliances

described in this manual are in compliance

with the following directives :

-Directive 2006/95/EC of the Council

with amendments "Directive Concerning

Electrical Equipment for Use Within

Speciﬁc Voltage Limits" (Low voltage

directive)

-Directive 2004/108/EC of the Council

with amendments "Directive Concerning

Electromagnetic Compatibility"

SAFETY

0020166663_03 VWZ MEH 61 Installation instructions and instructions for use

Installation instructions and instructions for use VWZ MEH 61 0020166663_03

2 Notes on the documentation

2.1 Observe other applicable documents

►Observe absolutely all operating and installation

instructions enclosed with the product, for the various

parts and components of the system.

2.2 Storing documents

►Pass these instructions and all other applicable

documents to the system user.

The system user should retain these instructions so that

they are available when required.

2.3 Validity of the instructions

These instructions apply exclusively to:

Product Type designation Article number

Electric back up

heater 6 kW 0020143590

3 Description of the product

3.1 Product structure

3.1.1 Hydraulic station

ABDEF

1 Expansion tank

2 Safety valve

3 Pressure sensor

4 Temperature sensor

5 Electric heater

6 Air bleed

7 Drain tap

8 Three-way valve

A Installation heating

circuit inlet

B Installation heating

circuit outlet

C Safety valve drain

D Domestic hot water

circuit outlet to the tank

E Tank domestic hot water

circuit inlet

F Glycol water circuit inlet

from heat pump

G Glycol water circuit outlet

to heat pump

3.2 Type designation and serial number

Data plate location:

1 Data plate

The type designation and the serial number are shown on

the data plate.

NOTES ON THE DOCUMENTATION

0020166663_03 VWZ MEH 61 Installation instructions and instructions for use 7

3.3 Data plate description

The data plate certiﬁes the country where the product is

intended to be installed.

The data plate contains the following data::

Abreviation//

symbole Description

Country code:

"GB"

Country where the product is intended to

be installed

Serial-no Commercial name of the product and its

serial number

Code Appliance product code

PSHmin

PSHmax

Central heating maximum and minimum

hydraulic pressure

V/Hz Electrical voltage / frequency

A Current

W (Pmax) Maximum electrical consumption

IP Index of electrical protection

See chapter "CE Mark"

See chapter "Recycling and disposal"

4 Mounting and installation

iNotes

All the drawings dimensions are shown in mm.

4.1 Preparing the mounting and

installation

4.1.1 Delivery and installation on site

4.1.1.1 product unpack

►Remove the product from its box.

►Remove the protective ﬁlm from all parts of the product.

4.1.1.2 Vériﬁcation du matériel livré

►Please check the scope of delivery for completeness.

-1 Hydraulic station

-1 accessories bag

- Attachment bracket (x1)

- Flat gasket 1" (x6)

- Flat gasket 1"1/4 (x2)

-1 230V single phase power supply cable (3 G4)

-1 Filler kit

-1 bag of documents (1 operating and installation)

4.1.2 Observing distances and mounting

clearances

4.1.2.1 Product and connection dimensions

440

720

350

220 220

87 101

667

672

4040 8080 40 40

140

MOUNTING AND INSTALLATION

Installation instructions and instructions for use VWZ MEH 61 0020166663_03

4.1.2.2 Distance to inﬂammable parts

►Make sure that no item that can easily catch ﬁre is in

direct contact with the components, which may reach a

temperature greater than 80°C.

►Make sure that there is a minimum distance of 200 mm

between items that can easily catch ﬁre and the hot

surfaces.

4.1.2.3 Mounting clearances

►Ensure the distances indicated on the diagram.

This will ensure that the connections to the water can be

accessed and inspected.

Additional clearances around the appliance may be

advantageous for its installation and maintenance.

min.

100

min.

>600*

iNotes

* Clearance necessary for the installation or

maintenance of the appliance.

4.1.3 Considering the product location

4.1.3.1 Surrounding conditions

►Ensure that the room in which the appliance is installed

is not heated to the maximum recommended room

temperature.

Recommended room temperature: 25°C.

►Do not install the product above another product that

could damage it (for example, above a cooker that might

emit steam or grease) or in a room, which has a lot of

dust in the atmosphere which is corrosive.

►Do not install the product under another product that

might leak.

►Make sure that the room where you want to ﬁt the

product is sufﬁciently protected against frost.

4.1.3.2 Properties of the mounting surface

►Before choosing a site for the product, carefully read

the safety warnings and instructions in the operating

instructions and installation instructions.

►Ensure that the wall to which the product will be mounted

on is structurally safe in order to support the weight of the

product.

4.2 Mounting the product

4.2.1 Removing the casing

1 Front façade attachment

screw

2 Front casing

►Remove the front cover of the appliance complying with

the order of operations (A) and (B).

MOUNTING AND INSTALLATION

0020166663_03 VWZ MEH 61 Installation instructions and instructions for use 9

4.2.2 Wall-mounting of the product

Danger!

Danger to life if the load-bearing

capacity of the fixing elements

used is insufficient!

If the fixing elements do not have

sufficient load-bearing capacity, the

product can come loose and fall

down.

►When fitting the product, ensure

that the fixing elements have a

sufficient load-bearing capacity.

►Determine the assembly location.

►Drill the holes to receive the fastenings.

►Fix the hanging bracket on the wall.

1 Support d’accrochage

►Lifting the product into position, lean the top of the product

slightly to the wall and position just above the hanging

bracket.

►Lower the product slowly and engage onto the hanging

bracket.

►This product is for internal installation only.

4.3 Hydraulic installation

Caution!

Risk of damage caused by

contaminated lines!

Foreign bodies such as welding

remnants, sealing residue or dirt in

the supply lines can cause damage

to the product.

►Flush the supply lines thoroughly

before installation.

Caution!

Risk of damage caused by heat

transfer when soldering.

Heat that is transferred during

soldering can cause damage

(expanded) polypropylene around

electrical modul and to the seals in

the service valves.

►Protect (expanded) polypropylene

of electrical modul

►Do not solder the connection

pieces if the connection pieces

are screwed to the service valves.

Caution!

Risk of damage due to corrosion.

If plastic pipes that pass oxygen are

used in the heating installation, this

may corrode or sludge up the

appliance’s heating circuit or the

appliance itself.

►If you use plastic pipes that pass

oxygen in the heating installation,

add a corrosion inhibitor to the

circuit water.

200

MOUNTING AND INSTALLATION

Installation instructions and instructions for use VWZ MEH 61 0020166663_03

123

1 Installation heating

circuit inlet 1”

2 Installation heating

circuit outlet 1”

3 Heating circuit outlet to

tank 1”

4 Safety valve drain

5 Heating circuit inlet from

tank 1"

6 Glycol water circuit inlet

from heat pump 1"

7 Glycol water circuit outlet

to heat pump 1"

►Only use the original seals supplied with the appliance.

►Connect the installation heating circuit as shown.

►Connect the tank heating circuit as shown.

►Connect the heat pump circuit as shown.

4.4 Electrical Installation

Danger!

Risk of electric shock due to an

improper electrical connection!

Improper electrical connection can

cause electric shock or might

negatively affect the operational

safety of the product and might

cause material damage.

►The electrical connection of the

product must be carried out only

by a suitably qualified person.

Notes

As standard, the product is delivered with the

400V configuration.

►If the product is connected to the 230V mains, use the,

230V cable that is supplied.

30 mm max.

1 Electrical wires

2 Insulation

When you connect the

electrical wires to

a connector on the

electronic board:

►Keep a distance of a maximum of 30 mm between

connector and the start of the insulation.

►If using single core wires are used ensure that they are

wrapped together in an insulating sheath.

►Fix the cables in the cable-clamp on the Box.

4.4.1 Connecting the power input (mains

connection)

The external wiring to be grounded. The polarity must be

correct and consistent with the standards.

►Connect the appliance in accordance with the live and

neutral connections.

The connecting cables between the electrical panel and the

appliance must be :

- adapted to a ﬁxed installation,

- resistant to temperatures above 90°C,

- Electrical wires with adapated section linked to the power

of the appliance.

►Connect the device to the electrical panel via an

independent protection system (circuit breaker with a

separation of at least 3 mm between each contact).

Additional protection may be required during the installation

to ensure overvoltage category II.

Switching devices from the mains supply must allow

complete failure of the supply according to the requirements

of the overvoltage category III.

Component Supply voltage

(mini section of cable)

Mono supply

cable

6 kW 230 V (3 x 4 mm²)

4 kW 230 V (3 x 2,5 mm²)

3-phase supply cable 400 V (5 x 1,5 mm²)

Heating element relay cable 230 V (3 x 0,75 mm²)

1 Electrical casing

2 230 V electrical

connection label

3 400 V electrical

connection label

MOUNTING AND INSTALLATION

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