Viessmann VITOCELL 300B Instrucciones de funcionamiento
Service instructions
for contractors
VIESMANN
Vitocell 300-B
Type EVBA-A
DHW cylinder, 300 and 500 l
Vitocell 300-V/W
Type EVIA-A
DHW cylinder, 160 to 500 l
For applicability, see the last page
VITOCELL 300-B
VITOCELL 300-V/W
5791 764 GB 3/2017 Please keep safe.
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.
■The system must be commissioned by the system
installer or a qualified person 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
■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.
!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
Safety instructions
5791 764 GB
3
Auxiliary components, spare and wearing parts
!Please note
Spare and wearing parts that have not been tes-
ted together with the system can compromise its
function. Installing non-authorised components
and making non-approved modifications or con-
versions can compromise safety and may inva-
lidate our warranty.
For replacements, use only original spare parts
supplied or approved by Viessmann.
Safety instructions
Safety instructions (cont.)
5791 764 GB
4
1. Information Symbols ................................................................................................. 5
Intended use .......................................................................................... 5
Product information ................................................................................ 6
Inspection and maintenance .................................................................. 6
2. Commissioning, inspec-
tion, maintenance
Steps - commissioning, inspection and maintenance ............................ 7
3. Parts lists Vitocell
300-V/W, 160 and 200 l
Overview of assemblies ......................................................................... 11
DHW cylinder ......................................................................................... 12
4. Parts lists Vitocell
300-B/V/W, 300 l
Overview of assemblies ......................................................................... 15
Vitocell 300-B DHW cylinder .................................................................. 16
Vitocell 300-V/W DHW cylinder ............................................................. 18
Immersion heater flange ........................................................................ 20
5. Parts lists Vitocell 300-B/V,
500 l
Overview of assemblies ......................................................................... 23
Vitocell 300-B cylinder body .................................................................. 24
Vitocell 300-V cylinder body .................................................................. 26
Vitocell 300-B/V thermal insulation ........................................................ 28
Immersion heater flange ........................................................................ 30
6. Commissioning/service
reports
................................................................................................................ 32
7. Specification ................................................................................................................ 33
8. Appendix Final decommissioning and disposal ..................................................... 35
9. Certificates Declaration of conformity ....................................................................... 36
■Vitocell 300-B and Vitocell 300-V/W ................................................... 36
Index
Index
5791 764 GB
5
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.
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.
Information
Symbols
5791 764 GB
Information
6
Vitocell 300-B, type EVBA-A
Stainless steel DHW cylinder with internal indirect coil
for DHW heating in conjunction with solar thermal sys-
tems, floorstanding and wall mounted boilers and/or
heat pumps for dual mode operation.
Capacity: 300 and 500 l
Vitocell 300-V/W, type EVIA-A
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
Vitocell 300-B and Vitocell 300-V/W
■An immersion heater can be used for 300 and 500 l
cylinder capacities.
■Suitable for systems to DIN 1988, EN 12 828 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.
Information
Product information
5791 764 GB
Information
7
Commissioning steps
Inspection steps
Maintenance steps Page
•1. Filling the DHW cylinder...................................................................................................... 8
• • 2. Shutting down the system
• • 3. Checking the sensor wells for leaks
• • 4. Checking the safety valve function
• • 5. Cleaning the inside of the DHW cylinder........................................................................... 8
• • 6. Returning the DHW cylinder to use.................................................................................... 9
• • 7. Checking connections and sensor wells for tightness on the water side
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5791 764 GB
8
1. Fill the DHW cylinder on the DHW side.
Note
If the DHW cylinder is pressurised, retighten the
flange cover with a torque of 40 Nm.
The cylinder cap does not need to be retightened.
2. Check the fittings on the heating water and DHW
sides for leaks and retighten if required.
3. Check the function of the safety valves according
to the manufacturer's instructions.
Shutting down the system
Checking the sensor wells for leaks
Checking the safety valve function
Cleaning the inside of the DHW cylinder
G
K
K
H
F
C
B
D E
A
C
Fig. 1
01. Drain the DHW cylinder on the DHW side.
02. Remove top panel A and cover B (for 300 and
500 l).
03. Remove thermal insulation C.
For 160 to 300 l: Flange insulation
For 500 l: Upper thermal insulation mat
04. Pull out thermometer sensor D (where installed),
disconnecting the spring clip to do so.
05. Pull out high limit safety cut-out sensor E, remov-
ing the clamping bracket with wing screw to do so.
06. Remove flange cover F (for 300 and 500 l) and
cylinder cap G with stainless steel circular blank
H and gaskets K.
07. To prevent cleaning agents and contaminants
entering the pipework, separate the DHW cylinder
from the pipework.
08. Remove loose deposits with a high pressure
cleaner.
!Please note
Pointed or sharp cleaning tools will damage
the cylinder interior.
Only use plastic tools to clean the inside.
Commissioning, inspection, maintenance
Filling the DHW cylinder
5791 764 GB
9
09. Use a chemical cleaning agent to remove hard
deposits that cannot be removed with a high pres-
sure cleaner.
!Please note
Cleaning agents containing hydrochloric
acid will attack the DHW cylinder material.
Use cleaning agents suitable for stainless
steel only.
Danger
Cleaning agent residues can result in poi-
soning.
Always observe the information provided by
the cleaning agent manufacturer.
10. Fully drain all cleaning agent.
11. Flush the DHW cylinder thoroughly after clean-
ing.
Returning the DHW cylinder to use
A
C
G
K
K
H
F
C
B
D E
Fig. 2
1. Reconnect the DHW cylinder to the pipework.
2. Insert new gaskets K to flange cover F (for 300
and 500 l) and on cylinder cap G.
3. Mount flange cover F (for 300 and 500 l) and cyl-
inder cap G with stainless steel circular blank H
and tighten to required torque.
■Cylinder cap: 160 Nm
■Flange cover: 40 Nm
4. Fill the DHW cylinder on the DHW side.
5. When the DHW cylinder is pressurised, retighten
the screws on flange cover F to a torque of
40 Nm.
6. Mount thermometer sensor D (where installed)
and high limit safety cut-out sensor E, thermal
insulation C, cover B, and top panel A.
Checking connections and sensor wells for tightness on the water side
Commissioning, inspection, maintenance
Cleaning the inside of the DHW cylinder (cont.)
5791 764 GB
10
Commissioning, inspection, maintenance
Checking connections and sensor wells for tightness on the water side
5791 764 GB
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