Viessmann VITOCELL 300V Quick guide

Installation and service instructions
for contractors
VIESMANN
Vitocell 300-V/-W
Type EVIB-A+
160 and 200 l
Type EVIB-A
160 to 300 l
Type EVIA-A
500 l
DHW cylinder with internal indirect coil
VITOCELL 300-V/-W
6173387 GB 2/2021 Please keep safe.

2
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
Safety instructions
6173387

3
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.)
6173387

4
1. Information Disposal of packaging ............................................................................ 5
Symbols ................................................................................................. 5
Intended use .......................................................................................... 5
Product information ................................................................................ 6
Inspection and maintenance .................................................................. 6
System examples .................................................................................. 6
Spare parts lists ..................................................................................... 6
2. Preparing for installation Unpacking and handling (160, 200 and 300 l) ....................................... 7
Connections ........................................................................................... 8
Siting information ................................................................................... 8
■Siting the DHW cylinder with immersion heater ................................. 9
3. Installation sequence 160 to 300 l capacity .............................................................................. 10
■Fitting the cylinder temperature sensor and thermometer sensor (if
supplied) ............................................................................................. 10
■Attach the cover and cap, affix the type plate ..................................... 11
500 l capacity ......................................................................................... 12
■Siting the DHW cylinder and fitting the thermal insulation mat at the
bottom ................................................................................................. 12
■Fitting the thermometer sensor (if supplied) and cylinder tempera-
ture sensor .......................................................................................... 13
■Fitting the thermal insulation jacket .................................................... 14
■Fitting the cover strips ........................................................................ 15
■Fitting the cover .................................................................................. 16
Connections on the heating water side .................................................. 16
Connections on the DHW side ............................................................... 17
■Safety valve ........................................................................................ 18
Connecting the DHW circulation pipe for cylinder banks ....................... 18
■In conjunction with boilers or district heating systems without heat-
ing water return temperature limiting facility and a DHW circulation
pipe ..................................................................................................... 19
■In conjunction with district heating systems with a return tempera-
ture limiting facility on the heating water side and/or in conjunction
with several DHW circulation pipes .................................................... 19
Connecting the equipotential bonding ................................................... 20
4. Commissioning, inspec-
tion, maintenance
Steps - commissioning, inspection and maintenance ............................ 21
5. Commissioning/service
reports
................................................................................................................ 26
6. Specification ................................................................................................................ 27
7. Disposal Final decommissioning and disposal ..................................................... 28
8. Certificates Declaration of conformity ....................................................................... 29
Index
Index
6173387

5
Please dispose of packaging waste in line with statu-
tory regulations.
Symbols
Symbol Meaning
Reference to other document containing
further information
1.
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.
or
■Acoustic signal
■Fit new component.
or
■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
6173387
Information

6
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 300-V/-W, type EVIB-A+, EVIB-A and
EVIA-A
Stainless steel DHW cylinder with internal indirect coil
for DHW heating in conjunction with floorstanding and
wall mounted boilers
■An immersion heater can be used for 300 and 500 l
cylinder capacities.
■Suitable for systems to DIN 1988, EN 12828 and
DIN 4753
Contents:
■Type EVIB-A+: 160 and 200 l
■Type EVIB-A: 160, 200 and 300 l
■Type EVIA-A: 500 l
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.
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.)
6173387
Information

7
2.
8.
9.
6.
7.
3.
4.
1.
4x
5.
Fig. 1
Preparing for installation
Unpacking and handling (160, 200 and 300 l)
6173387
Installation

8
B
C
E
G
H
D
A
F
Fig. 2 160, 200 and 300 l capacity
AHigh limit safety cut-out, below the thermal insula-
tion
BDHW
CDHW circulation
DClamping device for cylinder temperature sensor
EHeating water flow
FInjection process plug for insulating foam (do not
use, keep closed)
GHeating water return
HCold water
500 l
A
B
D
E
F
C
Fig. 3
ADHW
BDHW circulation
CClamp (behind the thermal insulation) for cylinder
temperature sensor or temperature controller
DHeating water flow
EHeating water return
FCold 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 damage, site the DHW cylin-
der in a room free from the risk of frost and
draughts.
Alternatively, drain the DHW cylinder when not
in use and there is a risk of frost.
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. 4
Do not extend the adjustable feet beyond a total
length of 35 mm.
Preparing for installation
Connections
6173387
Installation

9
Siting the DHW cylinder with immersion heater
a
Fig. 5 Example: 300 l capacity
Immersion heater installation instructions
Maintain the minimum clearance.
Cylinder capacity
in l
Dim. a
in mm
300 min. 730
500 min. 670
Note
The unheated length of any threaded immersion
heater installed on site must be at least 100 mm.
Preparing for installation
Siting information (cont.)
6173387
Installation

10
Fitting the cylinder temperature sensor and thermometer sensor (if supplied)
1.
10.
11.
8.
9.
7.
6.
5.3.
4.
2 Nm
3x
Ø 3 ... 9 mm
65 mm
2.
Fig. 6
03. Insert the cylinder temperature sensor as far as it
will go into the opening of the clamping device.
04. Hand-tighten the cylinder temperature sensor with
the screw provided. When doing so, hold the cyl-
inder temperature sensor in place in the sensor
terminal until the screw is screwed in.
!Please note
Overtightening the fixing screw may dam-
age the cylinder temperature sensor.
Torque: Max. 2 Nm
05. Pull gently on the lead from the cylinder tempera-
ture sensor to check that it is securely fitted in the
clamping device.
06. Insert the upper thermometer sensor as far as it
will go into the hole in the cylinder cap.
07. Use clips to secure the thermometer sensor
against being pulled out.
08. Insert the sensor of the high limit safety cut-out
into the aperture next to the wing nut.
09. Tighten the wing nut.
10. Guide the thermometer cable through the groove
in the thermal insulation and the hole in the sheet
steel casing.
Installation sequence
160 to 300 l capacity
6173387
Installation

11
11. Secure the thermometer (accessory) to the wall.
Installation instructions for wall thermome-
ter
Attach the cover and cap, affix the type plate
B
2.
1.
A
4.
6.
7.
5.
3.
Fig. 7
ARecess in top cover for thermometer cable
BType plate
Installation sequence
160 to 300 l capacity (cont.)
6173387
Installation

12
Siting the DHW cylinder and fitting the thermal insulation mat at the bottom
1.
A
2.
Fig. 8
AType plate
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. 9
Do not extend the adjustable feet beyond a total
length of 35 mm.
Installation sequence
500 l capacity
6173387
Installation

13
Fitting the thermometer sensor (if supplied) and cylinder temperature sensor
1.
4.
3.
2.
A
5.
7.
6.
8.
Fig. 10
1. Guide the thermometer sensor through the cover
strip. Insert the thermometer.
Note
The cover strip is held in its vertical position by the
straight capillaries. This is necessary for the rest of
the installation.
2. Insert the upper thermometer sensor as far as it
will go into the hole in the cylinder cap.
3. Use clips to secure the thermometer sensor
against being pulled out.
4. Route the bottom thermometer sensor capillaries
to the back of the cylinder body.
5. Screw the nuts onto the threaded studs. Do not
tighten.
6. Slot the clamping devices onto the threaded studs
and align.
7. Tighten the nuts.
8. Depending on where the sensor is being fitted:
Insert the thermometer sensors and cylinder
temperature sensor into clamp A as far as they
will go.
Note
■Never wrap insulating tape around the sensors.
■When the thermal insulation is being fitted, the
cylinder temperature sensor leads are routed
outwards through the apertures (slots) in the rear
cover strip.
Installation sequence
500 l capacity (cont.)
6173387
Installation

14
Fitting the thermal insulation jacket
Note
■Ensure that no fleece remnants enter the DHW cylin-
der through the cylinder connections.
■2 people are required for the following work.
1. 6x
2.
6x
4. 6x
6x 3.
Fig. 11
1. At the back of the cylinder: Attach 6 clip fasteners
to the edges of the right and left sections of the
thermal insulation jacket. Place the thermal insula-
tion jacket around the cylinder body.
Note
Leave the clip fasteners in the first notch.
2. At the front of the cylinder: Attach 6 clip fasteners
to the edges of the right and left sections of the
thermal insulation jacket.
3. Push the clip fasteners at the back of the cylinder
as close together as possible.
4. Push the clip fasteners at the front of the cylinder
as close together as possible.
Installation sequence
500 l capacity (cont.)
6173387
Installation

15
Fitting the cover strips
A
4.
1.
3.
2.
Fig. 12
ADHW cylinder type plate
1. Fit the thermal insulation jacket evenly around the
cylinder body by patting it.
2. Mount the front cover strip and flange cover.
3. Fit the back cover strip.
4. Affix the type plate.
Installation sequence
500 l capacity (cont.)
6173387
Installation

16
Fitting the cover
A
1.
2.
Fig. 13
ACap with Viessmann logo
Note
The soft side of the thermal insulation must rest
against the cylinder body.
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.
!Please note
The internal indirect coil is installed with gas-
kets.
■Temperatures > 150 °C at the connections will
damage the gaskets.
Maintain a safe distance when soldering and
welding.
■Realigning the connector will damage the gas-
kets.
Permissible heating water flow temperature
■Heating water side 160 °C
Permissible operating pressure
■Heating water side 10 bar
1 MPa
■DHW side 10 bar
1 MPa
Test pressure
■Heating water side 16 bar
1.6 MPa
■DHW side 16 bar
1.6 MPa
Permissible DHW temperature 95 °C
Installation sequence
500 l capacity (cont.)
6173387
Installation

17
KW
WW
4
1
2
35
Fig. 14
1Heating water return
2Heating water flow
3Spring-loaded check valve
4Cylinder temperature sensor or temperature con-
troller and high limit safety cut-out (if required)
5Circulation pump
KW Cold water
WW DHW
1. For heating water flow temperatures in excess of
95 °C and cylinder capacity of 300 l: Remove the
pipe collars from the pipe outlets on the heating
water side.
Note
Pipe collars have l.h. threads.
2. Install the heat supply control unit.
3. Install the flow line with a rise and fit an air vent
valve at the highest point.
4. Only for heating water flow temperatures in excess
of 110 °C:
If the system does not already have one, also
install a type-tested high limit safety cut-out.
For this, use a temperature limiter and high limit
safety cut-out (TR/STB).
Connections on the DHW side
■For connections on the DHW side, observe
DIN 1988 and DIN 4753.
c: SVGW regulations.
■Connect all pipework with detachable fittings.
■Seal any connections that are not required with red
brass caps.
■Equip the DHW circulation pipe with a DHW circula-
tion pump and a check valve.
■Connection of the DHW circulation pump:
–Connection to the boiler control unit if it is equip-
ped with a DHW circulation pump connection.
–Connection with a time switch if no DHW circula-
tion pump connection is available on the boiler
control unit.
–Connection via time switch.
■Always install cylinder banks with connected DHW
circulation.
!Please note
The internal indirect coil is installed with gas-
kets.
■Temperatures > 150 °C at the connections will
damage the gaskets.
Maintain a safe distance when soldering and
welding.
■Realigning the connector will damage the gas-
kets.
Installation sequence
Connections on the heating water side (cont.)
6173387
Installation

18
EG
D
C
A
B
KNL TSO
P
K R K POMK
H
F
Fig. 15 Example: 300 l capacity
ADiaphragm expansion vessel
BDrain
CDHW circulation pipe
DDHW
ESpring-loaded check valve
FDHW circulation pump
GVisible discharge pipe outlet point
HSafety valve
KShut-off valve
LFlow regulating valve
MPressure gauge connector
NNon-return valve
ODrain
PCold water
RDrinking water filter
SPressure reducer
TNon-return valve/pipe separator
Safety valve
The system must be equipped with a type-tested dia-
phragm safety valve as protection against overpres-
sure.
Permissible operating pressure: 10 bar (1 MPa).
The connection diameter of the safety valve must be
as follows:
■For 160 and 200 l cylinder capacity: R ½ (DN 15),
max. heat input 75 kW
■For 300 l to 1000 l cylinder capacity: R ¾ (DN 20),
max. heat input 150 kW
■For 1000 l to 5000 l cylinder capacity: R 1 (DN 25),
max. heat input 250 kW
Select a safety valve with a higher rating if the heat
input of the DHW cylinder is greater than the maximum
heat input assigned to the capacity. (See DIN 4753-1,
issue 3/88, section 6.3.1).
Install the safety valve in the cold water line. Ensure it
cannot be shut off from the DHW cylinder. There must
be no constrictions in the pipework between the safety
valve and the DHW cylinder.
!Please note
Never seal off the safety valve discharge pipe.
The overpressure can damage the system.
Ensure that any expelled water is safely and
visibly drained into a drainage system.
Position a sign close to the safety valve dis-
charge pipe, or ideally on the safety valve itself,
with the following inscription: "For safety rea-
sons, water may be discharged from the dis-
charge pipe during heating! Never seal."
Install the safety valve above the top edge of the DHW
cylinder.
Connecting the DHW circulation pipe for cylinder banks
Note
Always install cylinder banks with connected DHW cir-
culation.
Installation sequence
Connections on the DHW side (cont.)
6173387
Installation

19
Notes on the diagrams below
■Headers D for DHW must be approved for drinking
water.
■Install the temperature controller in the final cylinder,
as viewed from the heating water flow.
■The "DHW" connection can, contrary to the dia-
grams, also be connected on the same side as the
heating water flow, and the "cold water" connection
can be implemented on the same side as the heating
water return. This ensures that every cylinder is
heated and that water is drawn off from every cylin-
der equally.
In conjunction with boilers or district heating systems without heating water return temperature
limiting facility and a DHW circulation pipe
C
Z
HV
D
E
E
D
Z Z
ELV
TR
HR
B
A
EV
WW
KW
Fig. 16
ADHW circulation pipe
BDHW circulation pump
CSpring-loaded check valve
DHeader on the DHW side (stainless steel)
EHeader on the heating water side (steel)
ELV Air vent valve
EV Drain valve
HR Heating water return
HV Heating water flow
KW Cold water
WW DHW
TR Temperature controller
Z DHW circulation
In conjunction with district heating systems with a return temperature limiting facility on the
heating water side and/or in conjunction with several DHW circulation pipes
WW
KW
C
HV ELV
TR
HR
EV
B
AD
E
E
D
Z Z Z
Fig. 17
ADHW circulation pipe
BDHW circulation pump
CSpring-loaded check valve
DHeader on the DHW side (stainless steel)
EHeader on the heating water side (steel)
ELV Air vent valve
EV Drain valve
HR Heating water return
HV Heating water flow
KW Cold water
Installation sequence
Connecting the DHW circulation pipe for… (cont.)
6173387
Installation

20
WW DHW
TR Temperature controller
Z DHW circulation
Connecting the equipotential bonding
Connect the equipotential bonding in accordance with
the requirements stipulated by your local power supply
utility and VDE [or local] regulations.
CH: Connect the equipotential bonding in accordance
with the technical requirements stipulated by your local
power supply utility and SEV regulations.
Installation sequence
Connecting the DHW circulation pipe for… (cont.)
6173387
Installation