Viessmann VITOCELL 300B Manuale utente
300litre capacity 500litre capacity
VITOCELL 300B
Installation instructions
for contractors
Vitocell300B
TypeEVB
DHW cylinder with internal indirect coils
300 and 500 litre capacity
5592782GB3/2007
2
Safety instructions
Please follow these safety instructions closely to prevent accidents and
material losses. For safety instructions in conjunction with boilers, see
separate installation instructions.
Safety regulations
Installation, commissioning,
inspection, maintenance and
repairs must only be carried out
by a competent person (heating
engineer/ installation contractor).
Observe all current safety
regulations as defined by DIN,
EN, DVGW, TRGI, TRF and VDE or
locally applicable standards.
See also the "Safety instructions" in
the "Vitotec technical documentation"
folder.
Before working on the equipment/
heating system, isolate the power
supply (e.g. by removing a separate
mains fuse or by means of a main
isolator) and safeguard against
unauthorised reconnection.
¨Safety instructions
In this instruction manual, this
heading denotes information which
must be observed to prevent
accidents and material losses.
¨This symbol denotes important
information which must be
observed to prevent material
losses.
Product information
DHW cylinder with internal indirect coils, made from stainless steel for
heating domestic hot water in conjunction with boilers, district heating or
low temperature heating systems for dual−mode operation.
300 and 500litre capacity
Suitable for systems conforming to DIN1988, DIN4751 and DIN4753.
DIN registration applied for.
5592782GB
3
DHW cylinder installation
General information
¨Safety instructions
Install the DHW cylinder in a
frost−protected and draught−free
room. Otherwise it must be drained
when not in use and there is a risk
of frost.
Provide adequate clearance from
the wall so that the thermostat can
be operated (if installed).
!Please note
The thermal insulation must
not be able to come into
contact with naked flames.
Exercise caution when welding
and soldering.
Aonly for 300litres capacity:
Equipotential bonding
(outer jacket)
HR1 Heating water return*1
HR2/STS Heating water return
and cylinder temperature
sensor for solar operation*2,3
HV1 Heating water flow*1
HV2 Heating water flow*2
KW Cold water
STS Cylinder temperature sensor
or control thermostat
(upper internal indirect coil)
STS/TH Cylinder temperature sensor
or control thermostat and
thermometer sensor
(lower internal indirect coil)*3
WW DHW
Z DHW circulation
*1The upper internal indirect coil is provided for connection to a boiler or a heat pump.
*2The lower internal indirect coil is provided for connection to solar collectors or heat
pumps.
*3Recommended arrangement of the cylinder temperature sensor for solar operation:
With threaded elbow (accessory) in the heating water return.
5592782GB
Z
WW
HV1
KW
A
HR1
HR2/STS
STS/TH
HV2
STS
4
DHW cylinder installation (cont.)
Installing a DHW cylinder with 300litres capacity
1. Level the DHW cylinder with its
adjustable feet.
¨Safety instruction
Never extend the adjustable feet
beyond a total length of 35mm.
2. Remove the top panel and the
thermal insulation mat.
3. Affix the cable channel.
4. Route the sensor lead of the lower
thermometer through the opening
and the cable channel.
5. Seal in the reducing connections
and sensor wells.
6. Secure the thermometer sensor
on the outside of the contact
spring of the sensor retainer (not
in the groove) so that it is flush
with the front of the spring.
Note
Never wrap insulating tape around
the sensor.
7. Insert the sensor retainer together
with the sensor into the lower
sensor well until it bottoms out.
5592782GB
3.
5.
5.
1.
2.
4.
7.
6.
5
DHW cylinder installation (cont.)
Installing a DHW cylinder with 500litres capacity
!Please note
The thermal insulation must not be able to come into contact with
naked flames. Exercise caution when welding and soldering.
All components required for fitting the thermal insulation can be found in the
thermal insulation carton.
1. Remove the pack containing the
type plate from the cylinder body,
and keep safe.
2. Push the thermal insulation mat
underneath the DHW cylinder.
3. Level the DHW cylinder with its
adjustable feet.
¨Safety instruction
Never extend the adjustable feet
beyond a total length of 35mm.
5592782GB
1.
3. 2.
6
DHW cylinder installation (cont.)
1Push the thermal insulation jacket
onto the flange.
2. Route the sensor lead of the upper
thermometer (shorter lead) and
the lower thermometer (longer
lead) through the opening and
push in the thermometers.
3. Guide the sensor of the lower
thermometer over the cylinder
body to the back of the cylinder
and out through the cut−out in the
thermal insulation for the heating
water flow (HV2 see page3).
Note
Install the sensor into the sensor
well as shown on page8.
4. Close the hooks on the closure
strips.
5. Insert the sensor of the upper
thermometer into the hole of the
cylinder cap until it bottoms out,
then secure with a clip to prevent
pulling out.
6Position the thermal insulation
mat and lid.
7. Push the logo (from the type plate
pack) into the lid.
5592782GB
2.
6.
4.
1.
5. 7.
3.
7
DHW cylinder installation (cont.)
1. Seal in the reducing connections.
2. Seal in the sensor well.
3. Affix the type plate.
5592782GB
1.
1.
2.
2.
3.
8
Installing the sensor well and the cylinder temperature sensor
HThe cylinder temperature sensor for the heating side is supplied in the
package of the appropriate control unit. The solar side cylinder temperature
sensor is supplied in the package of the solar control unit.
HSecure the sensor on the outside of the contact spring of the sensor retainer
(not in the groove) so that it is flush with the front of the spring.
HNever wrap insulating tape around the sensor.
HInsert the sensor retainer together with the sensor into the sensor well until
it bottoms out.
¨Safety instruction
For the sake of maximum operational reliability, use the sensor well supplied
for the control unit sensor. If the sensor to be used does not fit this sensor
well, use a different stainless steel sensor well (1.4571 or 1.4435).
5592782GB
2.
1.
3.
5.
4.
4.
5.
6.
9
Installing the cylinder temperature sensor for solar operation
In case of solar operation, install the cylinder temperature sensor with a
threaded elbow (accessory) into the heating return (solar return).
Insert the sensor until it bottoms out inside the sensor well.
300litres capacity
500litres capacity
5592782GB
3.
1.
2.
3.
2.
1.
10
Connecting the earth bonding
Connect the earth bonding in
accordance with the requirements
stipulated by your local electricity
supply company and current local
regulations.
5592782GB
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