Viessmann VITOCELL 300W User manual

Installation instructions
for contractors
VIESMANN
Vitocell 300-V/W
Type EVIA-A
DHW cylinder with internal indirect coil
160 to 500 l
VITOCELL 300-V/W
5791 762 GB 3/2017 Dispose after installation.

2
Please follow these safety instructions 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 environmental pollution.
Note
Details identified by the word "Note" contain additional
information.
Target group
These instructions are exclusively intended for quali-
fied contractors.
■Work on electrical equipment may only be carried
out by a qualified electrician.
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
■All relevant safety regulations as defined by DIN, EN,
DVGW, VDE and locally applicable standards
aÖNORM, EN and ÖVE
cSEV, SUVA, SVTI, SWKI and SVGW
Working on the system
■Isolate the system from the power supply (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 reconnection.
■Wear protective clothing.
!Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing any work, touch earthed
objects such as heating or water pipes to dis-
charge 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.
Repair work
!Please note
Repairing components that fulfil a safety func-
tion can compromise the safe operation of the
system.
Replace faulty components only with genuine
Viessmann spare parts.
Safety instructions
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1. Information Disposal of packaging ............................................................................ 4
Symbols ................................................................................................. 4
Intended use .......................................................................................... 5
Product information ................................................................................ 5
2. Preparing for installation Connections ........................................................................................... 6
Information on transport and siting ........................................................ 6
■300 and 500 l capacity: Setting up the DHW cylinder with immersion
heater ................................................................................................. 7
3. Installation sequence 160, 200, 300 l capacity ......................................................................... 8
■Installing the temperature controller sensor ....................................... 8
Affixing the type plate ............................................................................ 9
300 l capacity ......................................................................................... 9
■Installing the sensor well and the cylinder temperature sensor .......... 9
■Fitting the flange cover ....................................................................... 10
500 l capacity ......................................................................................... 11
■Siting the DHW cylinder and fitting the thermal insulation mat at the
bottom ................................................................................................. 11
■Fitting the thermometer sensor (if supplied) and cylinder tempera-
ture sensor .......................................................................................... 12
■Fitting the thermal insulation jacket .................................................... 13
■Fitting the cover strips ........................................................................ 14
■Fitting the cover .................................................................................. 15
Connections on the heating water side .................................................. 15
Connections on the DHW side ............................................................... 16
■Safety valve ........................................................................................ 17
■Connecting the DHW circulation pipe for cylinder banks .................... 17
Connecting the equipotential bonding ................................................... 19
Commissioning ...................................................................................... 19
4. Specification ................................................................................................................ 20
Index
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Please dispose of packaging waste in line with statu-
tory regulations.
DE: Use the disposal system organised by
Viessmann.
AT: Use the ARA statutory disposal system (Altstoff
Recycling Austria AG, licence number 5766).
CH: Packaging waste is disposed of by the HVAC
contractor.
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.
Disposal of packaging
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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.
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
Stainless steel DHW cylinder with internal indirect coil
for DHW heating in conjunction with floorstanding and
wall mounted boilers.
■Capacity: 160, 200, 300 and 500 l
■300 and 500 l: An immersion heater can be used.
■Suitable for systems conforming to DIN 1988,
EN 12828 and DIN 4753
Intended use
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C
D
F
G
H
E
A
B
Fig. 1 160, 200, 300 litres
ACylinder temperature sensor (160 and 200 l, below
the thermal insulation)
BHigh limit safety cut-out (below the thermal insula-
tion)
CDHW
DDHW circulation
ECylinder temperature sensor or temperature con-
troller (300 l)
FHeating water flow
GHeating water return
HCold water
A
B
D
E
F
C
Fig. 2 500 litres
ADHW
BDHW circulation
CClamp (behind the thermal insulation) for cylinder
temperature sensor or temperature controller
DHeating water flow
EHeating water return
FCold water
Information on transport and siting
Note
■Use a transport aid (accessories).
■Transport the appliance with a sufficient number of
persons. Note the weight of the cylinder (see
page 20).
!Please note
To prevent material losses, install the DHW cyl-
inder in a room free from draughts and risk of
frost.
When not in use, the DHW cylinder must be
drained if there is a risk of frost.
!Please note
The thermal insulation must not come into con-
tact with naked flames.
Exercise caution when welding and brazing.
■Minimum wall clearance: 500 mm.
■Provide adequate clearance from the wall to allow for
operation of the temperature controller (if installed).
■Use the adjustable feet to level the DHW cylinder.
Note
Never extend the adjustable feet beyond a total length
of 35 mm.
Connections
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300 and 500 l capacity: Setting up the DHW cylinder with immersion heater
a
Fig. 3
Immersion heater installation instructions
Maintain the minimum clearance.
Cylinder capacity Dim. a
300 l 730 mm
500 l 670 mm
Note
The unheated length of any threaded immersion
heater installed on site must be at least 100 mm.
Information on transport and siting (cont.)
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Installing the temperature controller sensor
7.
2.
3.
4.
5.
1.
A
B
6.
Fig. 4
Note for cylinders with 300 l capacity
Following step 1, remove the parts for flange cover
installation.
Note on steps 2 to 5
For 160 and 200 l capacities only.
Note on step 6
If a high limit safety cut-out is installed:
■Cut out opening A on flange insulation.
■Push high limit safety cut-out sensor B into clamp-
ing bracket, and secure with wing screw.
160, 200, 300 l capacity
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A
Fig. 5
AType plate
300 l capacity
Installing the sensor well and the cylinder temperature sensor
Note
The sensor retainer is in the sensor well.
4.
2.
3.
1.
Fig. 6
1. Extract the sensor retainer.
2. Fit the sensor to the outside of the sensor retainer
contact spring (not in the groove).
Note
■The sensor must sit flush with the front of the
spring.
■Never wrap insulating tape around the sensor.
3. Insert the sensor retainer with sensor into the sen-
sor well as far as it will go.
Affixing the type plate
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Fitting the flange cover
2.
1.
Fig. 7
300 l capacity (cont.)
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