Viessmann VITOCELL 300B User manual

Installation instructions
for contractors
VIESMANN
Vitocell 300-B
Type EVB
Dual mode DHW cylinder, 300 to 500 l
VITOCELL 300-B
5607 084 GB 9/2013 Dispose after installation.

2
Please follow these safety instructions closely to
prevent accidents and material losses.
Safety instructions explained
!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 must only be carried
out by qualified electricians.
Regulations
Observe the following when working on this system:
■National installation regulations
■Statutory regulations regarding the prevention of
accidents
■Statutory regulations regarding environmental pro-
tection
■The Code of Practice of relevant trade associations
■All current safety regulations as defined by DIN, EN,
DVGW, VDE and all 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.
Safety instructions
5607 084 GB

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1. Intended use .................................................................................................................. 4
2. Installation information Product information ................................................................................ 5
■Connections ........................................................................................ 5
■Siting information ................................................................................ 5
3. Installation sequence DHW cylinder 300 l ................................................................................ 7
■Installing the DHW cylinder ................................................................ 7
■Fitting the flange cover and cover ...................................................... 8
DHW cylinder 500 l ................................................................................ 9
■Installing the DHW cylinder and fitting the thermal insulation mat at
the bottom ........................................................................................... 9
■Fitting the thermal insulation jacket .................................................... 9
■Fitting thermometer with thermometer sensor and cover strips ......... 11
■Fitting the cover .................................................................................. 12
Installing the thermometer and the cylinder temperature sensor .......... 12
Fitting the cylinder temperature sensor for solar operation ................... 13
■300 l capacity ...................................................................................... 14
■500 l capacity ...................................................................................... 14
Connections on the heating water side .................................................. 14
■Heating DHW by solar collectors ........................................................ 15
■Heating DHW by a heat pump ............................................................ 16
Connections on the DHW side ............................................................... 16
■Safety valve ........................................................................................ 17
Connecting the equipotential bonding ................................................... 17
Commissioning ...................................................................................... 17
Index
5607 084 GB

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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.
Intended use
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Stainless steel DHW cylinder with internal indirect coils
for DHW heating in conjunction with solar thermal sys-
tems, floorstanding and wall mounted boilers and/or
heat pumps for dual mode operation
■An immersion heater can be used
■Capacity: 300 and 500 l
■Suitable for systems conforming to DIN 1988,
EN 12828 and DIN 4753
Connections
A
B
C
D
E
F
G
H
K
Fig. 1
ADHW
BCylinder temperature sensor or temperature con-
troller (upper indirect coil)
CHeating water flow*1 (upper indirect coil)
DDHW circulation
EHeating water return*1 (upper indirect coil)
FCylinder temperature sensor or temperature con-
troller and thermometer sensor (lower indirect
coil)*2
GHeating water flow*3 (lower indirect coil)
HHeating water return and cylinder temperature
sensor for solar operation*2*3
KCold water
Maximum connectable heat pump input (upper and
lower indirect coils linked in series):
For 300 l: 12 kW
For 500 l: 15 kW
Siting information
!Please note
The thermal insulation must not come into con-
tact with naked flames.
Exercise caution when welding and soldering.
!Please note
To prevent material losses, install the cylinder in
a room free from the risk of frost and draughts.
Otherwise the cylinder will have to be drained
when it is not in use and there is a risk of frost.
■Provide adequate clearance from the wall so that the
temperature controller can be operated (if installed).
■Level the DHW cylinder with the adjustable feet.
Note
Never extend the adjustable feet beyond a total
length of 35 mm.
*1 The upper indirect coil is designed for connection to a boiler.
*2 Recommended positioning of the cylinder temperature sensor for solar operation:
With threaded elbow (accessories) in the heating water return.
*3 The lower indirect coil is designed for connection to solar collectors.
Product information
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Siting the cylinder with an immersion heater
a
Fig. 2
Installation instructions, immersion heater
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.
Product information (cont.)
5607 084 GB

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Installing the DHW cylinder
A
3.
2.
4.
1.
Fig. 3
1. Remove the cover and the flange insulation.
2. Affix the cable trunking.
3. Route the sensor lead of the lower thermometer
through the opening and the cable trunking.
4. Affix the type plate.
DHW cylinder 300 l
5607 084 GB

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Fitting the flange cover and cover
2.
1.
Fig. 4
DHW cylinder 300 l (cont.)
5607 084 GB

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Installing the DHW cylinder and fitting the thermal insulation mat at the bottom
1.
A
2.
Fig. 5
AType plate pack
Fitting the thermal insulation jacket
Note
■2 people are required for the following work.
■Ensure that no fleece remnants enter the cylinder
through the cylinder connections.
DHW cylinder 500 l
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1. 6x
2.
6x
4. 6x
6x 3.
Fig. 6
1. At the back of the cylinder: Attach 6 clip fastenings
to the edges of the r.h. and l.h. sections of the insu-
lation jacket and lay the thermal insulation jacket
around the cylinder body.
Note
Leave the clip fastenings in the first notch.
2. At the front of the cylinder: Attach 6 clip fastenings
to the edges of the r.h. and l.h. sections of the insu-
lation jacket.
3. Push the clip fastenings at the back of the cylinder
as close together as they will go.
4. Push the clip fastenings at the front of the cylinder
as close together as they will go.
DHW cylinder 500 l (cont.)
5607 084 GB