Viessmann VITOCELL 100-W Betriebsanleitung

Installation and service instructions

for contractors

VIESMANN

Vitocell 100-W

Type CUGA

DHW cylinder

100 l

VITOCELL 100-W

6150560 GB 1/2020 Please keep safe.

Please follow these safety instruc-

tions closely to prevent accidents

and material losses.

Safety instructions explained

Danger

This symbol warns against the risk

of injury.

!Please note

This symbol warns against the risk

of material losses and environmen-

tal pollution.

Note

Details identified by the word "Note"

contain additional information.

Target group

These instructions are exclusively inten-

ded for qualified contractors.

■Work on electrical equipment may only

be carried out by a qualified electrician.

■The system must be commissioned by

the system installer or a qualified per-

son authorised by the installer.

Regulations to be observed

■National installation regulations

■Statutory regulations for the prevention

of accidents

■Statutory regulations for environmental

protection

■Codes of practice of the relevant trade

associations

■Relevant country-specific safety regu-

lations

Working on the system

■Isolate the system from the power sup-

ply (e.g. by removing the separate fuse

or by means of a mains isolator) and

check that it is no longer live.

■Safeguard the system against recon-

nection.

!Please note

Electronic assemblies can be dam-

aged by electrostatic discharge.

Prior to commencing any work,

touch earthed objects such as heat-

ing or water pipes to discharge

static loads.

Danger

Hot surfaces can cause burns.

■Before maintenance and service

work, switch OFF the appliance

and let it cool down.

■Never touch the hot surfaces of

uninsulated pipes and fittings.

Safety instructions

6150560

Danger

Floors that are wet or damp with

water or glycol based liquids can

cause injury due to slipping and fall-

ing.

■Keep the floor clean and dry dur-

ing installation and maintenance

work.

■Wear non-slip shoes.

Danger

Broken-off fragments of insulation

material can cause death by suffo-

cation if inhaled or swallowed.

■Do not let children play in the

installation room.

■Keep the installation room clean

after installation and maintenance

work.

Repair work

!Please note

Repairing components that fulfil a

safety function can compromise the

safe operation of the system.

Replace faulty components only

with genuine Viessmann spare

parts.

Auxiliary components, spare and wearing parts

!Please note

Spare and wearing parts that have

not been tested together with the

system can compromise its func-

tion. Installing non-authorised com-

ponents and making non-approved

modifications or conversions can

compromise safety and may invalid-

ate our warranty.

For replacements, use only original

spare parts supplied or approved by

Viessmann.

Safety instructions

Safety instructions (cont.)

6150560

1. Information Disposal of packaging ............................................................................ 5

Symbols ................................................................................................. 5

Intended use .......................................................................................... 5

Product information ................................................................................ 6

■Vitocell 100-W, type CUGA ................................................................. 6

Inspection and maintenance .................................................................. 6

System examples .................................................................................. 6

Spare parts lists ..................................................................................... 6

2. Preparing for installation Unpacking the DHW cylinder ................................................................. 7

Connections ........................................................................................... 8

Siting information ................................................................................... 8

3. Installation sequence Cylinder temperature sensor, anode connection ................................... 9

Thermometer sensor (if supplied), closing the appliance ...................... 10

Connections on the heating water side .................................................. 10

Connections on the DHW side ............................................................... 10

■Safety valve ........................................................................................ 11

Connecting the equipotential bonding ................................................... 12

4. Commissioning, inspec-

tion, maintenance

Steps - commissioning, inspection and maintenance ............................ 13

5. Commissioning/service

reports

................................................................................................................ 17

6. Specification ................................................................................................................ 18

7. Disposal Final decommissioning and disposal ..................................................... 19

8. Certificates Declaration of conformity ....................................................................... 20

Index

6150560

Please dispose of packaging waste in line with statu-

tory regulations.

Symbols

Symbol Meaning

Reference to other document containing

further information

Step in a diagram:

The numbers correspond to the order in

which the steps are carried out.

Warning of material losses and environ-

mental pollution

Live electrical area

Pay particular attention.

■Component must audibly click into place.

■Acoustic signal

■Fit new component.

■In conjunction with a tool: Clean the sur-

face.

Dispose of component correctly.

Dispose of component at a suitable collec-

tion point. Do not dispose of component in

domestic waste.

The steps in connection with commissioning, inspec-

tion and maintenance are found in the "Commission-

ing, inspection and maintenance" section and identified

as follows:

Symbol Meaning

Steps required during commissioning

Not required during commissioning

Steps required during inspection

Not required during inspection

Steps required during maintenance

Not required during maintenance

Intended use

The appliance is only intended to be installed and

operated in sealed unvented systems that comply with

EN 12828 / DIN 1988, or solar thermal systems that

comply with EN 12977, with due attention paid to the

associated installation, service and operating instruc-

tions. DHW cylinders are only designed to store and

heat water of potable water quality. Heating water buf-

fer cylinders are only designed to hold fill water of pot-

able water quality. Only operate solar collectors with

the heat transfer medium approved by the manufac-

turer.

Intended use presupposes that a fixed installation in

conjunction with permissible, system-specific compo-

nents has been carried out.

Commercial or industrial usage for a purpose other

than heating the building or DHW shall be deemed

inappropriate.

Any usage beyond this must be approved by the man-

ufacturer for the individual case.

Information

Disposal of packaging

6150560

Information

Incorrect usage or operation of the appliance (e.g. the

appliance being opened by the system user) is prohibi-

ted and results in an exclusion of liability.

Incorrect usage also occurs if the components in the

system are modified from their intended use (e.g.

through direct DHW heating in the collector).

Adhere to statutory regulations, especially concerning

the hygiene of potable water.

Product information

Vitocell 100-W, type CUGA

Enamelled DHW cylinder with internal indirect coil for

DHW heating in conjunction with wall mounted boilers

■Capacity: 100 l

■Colour: White

■Suitable for systems conforming to DIN 1988,

EN 12828 and DIN 4753

Inspection and maintenance

DIN 1988 requires a visual inspection and (if neces-

sary) cleaning no later than 2 years after the cylinder

has been commissioned, and thereafter according to

requirements.

Note

We additionally recommend checking the function of

the protective magnesium anode annually. This func-

tion check can be made without interrupting operation

by measuring the earth current with an anode tester

(see page 14).

System examples

Available system examples: See www.viessmann-

schemes.com.

Spare parts lists

Information about spare parts can be found at

www.viessmann.com/etapp or in the Viessmann

spare part app.

Information

Intended use (cont.)

6150560

Information

Fig. 1

Preparing for installation

Unpacking the DHW cylinder

6150560

Installation

View from above

A B

FEDC

Rear view

ACylinder flow

BCylinder return

CInspection and cleaning aperture

DProtective magnesium anode with earth cable

EConnection, temperature sensor for thermometer

FSensor well for cylinder temperature controller

GDHW

HDHW circulation

KCold water

Siting information

!Please note

The thermal insulation must not come into con-

tact with naked flames.

Exercise caution when welding and brazing.

!Please note

To prevent material losses, install the DHW cyl-

inder in a room free from draughts and risk of

frost.

If the location is not frost free, drain the DHW

cylinder when it is not in use.

Use the adjustable feet to level the DHW cylinder.

Note

Only use one or two of the adjustable feet to level the

DHW cylinder. At least one of the adjustable feet must

remain fully screwed in.

≤35

Fig. 2

Never extend the adjustable feet beyond a total length

of 35 mm.

Preparing for installation

Connections

6150560

Installation

Fig. 3

AProtective magnesium anode

BEarth cable

2. Route the sensor lead around the r.h. side past the

cylinder return to the sensor well.

Note

Push through the thermal insulation to route the

sensor lead through the opening.

Note

Never wrap insulating tape around the sensor.

5. Insert the cylinder temperature sensor into the sen-

sor well as far as it will go.

6. Secure sensor lead with strain relief sleeve.

Installation sequence

Cylinder temperature sensor, anode connection

6150560

Installation

Fig. 4

AType plate

1. Route the thermometer lead through the groove in

the flange rim.

2. Insert the thermometer sensor as far as it will go

into the clamping bracket.

Installation instructions, casing for covering

connecting leads/cables

6. Secure the thermometer (accessory) to the wall.

Installation instructions for wall thermometer

Connections on the heating water side

■Connect all pipework with detachable fittings.

■Seal any connections that are not required with red

brass caps.

■Adjust the temperature controller and high limit

safety cut-out so that the DHW temperature in the

DHW cylinder does not exceed 95 °C.

Permissible temperature 160 °C

Permissible operating pressure 10 bar

(1.0 MPa)

Test pressure 16 bar

(1.6 MPa)

1. Connect the pipes on the heating water side:

Connection set installation instructions

2. Only for heating water flow temperatures in excess

of 110 °C and if the system is not equipped with a

high limit safety cut-out: Install an additional type-

tested high limit safety cut-out.

For this, use a TR/HLSC combination device (tem-

perature limiter and high limit safety cut-out).

Connections on the DHW side

■For connections on the DHW side, observe

DIN 1988 and DIN 4753 (c: SVGW regulations).

■Seal in the drain valve at the drain connection and

check its function.

■Connect all pipework with detachable fittings.

■Seal any connections that are not required with red

brass caps.

Installation sequence

Thermometer sensor (if supplied), closing the appliance

6150560

Installation

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