Viessmann Vitosol 200-T Istruzioni operative
Service instructions
for contractors
VIESMANN
Vitosol 200-T
Type SP2A
Vitosol 300-T
Type SP3B
Vacuum tube collectors based on the heat pipe principle
For applicability, see the last page
VITOSOL 200-T
VITOSOL 300-T
5772 274 GB 2/2013 Please keep safe.
2
Please follow these safety instructions closely to prevent accidents and mate-
rial losses.
Safety instructions explained
!Please note
This symbol warns against the
risk of material losses and envi-
ronmental pollution.
Note
Details identified by the word "Note" con-
tain additional information.
Target group
These instructions are exclusively inten-
ded for qualified contractors.
■ Work on electrical equipment must
only be carried out by a qualified elec-
trician.
■ The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations
Observe the following when working on
this system:
■ National installation regulations
■ Statutory regulations regarding the
prevention of accidents
■ Statutory regulations regarding envi-
ronmental protection
■ Codes of practice of the 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 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
damaged by electrostatic dis-
charge.
Prior to commencing any work,
touch earthed objects, such as
heating or water pipes to dis-
charge static loads.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise
the safe operation of your sys-
tem.
Defective components must be
replaced with genuine
Viessmann spare parts.
Safety instructions
Safety instructions
5772 274 GB
3
Auxiliary components, spare and
wearing parts
!Please note
Spare and wearing parts that
have not been tested together
with the system can compromise
its function. Installing non-author-
ised components and making
non-approved modifications or
conversions can compromise
safety and may invalidate our
warranty.
For replacements, use only orig-
inal spare parts supplied or
approved by Viessmann.
Safety instructions
Safety instructions (cont.)
5772 274 GB
4
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 5
Further details regarding the individual steps....................................................... 6
Scope of inspection........................................................................................... 15
Parts lists
Parts list Vitosol 200-T......................................................................................... 16
Parts list Vitosol 300-T......................................................................................... 18
Specification....................................................................................................... 20
Certificates
Declaration of conformity...................................................................................... 21
Index
Index
5772 274 GB
5
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps Page
•1. Checking pressure conditions and adjusting the pre-
charge pressure of the expansion vessel if necessary 6
••• 2. Checking the function of the safety equipment............. 8
••• 3. Checking electrical connections..................................... 8
•4. Filling and flushing the solar thermal system and
checking for leaks............................................................ 8
••• 5. Determining and adjusting the flow rate if required...... 12
• • 6. Commissioning the system............................................. 13
••• 7. Checking the switching function of the solar control
unit..................................................................................... 13
• • 8. Checking and replacing the heat transfer medium if
required............................................................................. 13
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5772 274 GB
6
Checking pressure conditions and adjusting the pre-charge
pressure of the expansion vessel if necessary
This process may not be carried out
while the solar thermal system is in oper-
ation.
1. Cover the collectors with tarpaulins.
2. Determine the charge pressure:
■ Solar thermal system pressure
1 bar + 0.1 bar/m = system pres-
sure
■ System pressure + 0.1 bar pres-
sure reserve for ventilation
3. Determine the pre-charge pressure
of the expansion vessel:
Value for system pressure minus
0.3 bar for hydraulic seal.
4. Check pre-charge pressure and
adjust if required.
A pressure gauge can be found in
the solar service case available as
an accessory.
5. Enter the values in the following table
(for subsequent inspection and main-
tenance work).
Example:
At 10 m static head, the result is:
■ System pressure = 2 bar
■ Charge pressure = 2.1 bar
■ Pre-charge pressure = 1.7 bar
Commissioning, inspection, maintenance
Further details regarding the individual steps
5772 274 GB
7
P
2
4
1
3
5
5
1System pressure of the solar thermal system 1.0 bar
2Supplement, static head 0.1 bar/m ................ bar
3System pressure (pressure gauge) ................ bar
Pressure reserve for ventilation + 0.1 bar
Charge pressure ................ bar
Pre-charge pressure of expansion vessel 5
Note
Record the "pre-charge pressure level" on the expansion
vessel.
................ bar
4Supplement 0.1 bar/m ................ bar
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5772 274 GB
8
Checking the function of the safety equipment
Check the safety valve:
■ Response pressure
■ Correct installation, with discharge
pipe
Checking electrical connections
Check the tightness of the electrical
plug-in connectors and cable grom-
mets; check cables for damage.
Filling and flushing the solar thermal system and checking for
leaks
!Please note
Filling and commissioning the
solar thermal system without first
safeguarding heat transfer
results in thermal stress.
Cover the collectors and keep
covered until heat transfer has
been regulated.
■ Accessories for flushing and filling the
solar thermal system:
–Flushing and filling facility (filling
trolley and filling station)
These contain a high speed pump
with a high pump rate, a filter and a
container for heat transfer medium.
–Filling valve, consisting of shut-off
valve, drain valve and fill valve.
■ Flush solar thermal system with heat
transfer medium. Otherwise there is a
risk that residual water from flushing
may become mixed with the heat
transfer medium. This would alter the
properties of the heat transfer
medium.
■ Flush soldered copper pipes thor-
oughly. Any residual scale may com-
promise the operation of the solar ther-
mal system.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5772 274 GB
9
The following description relates to a system with a Solar-Divicon.
P
K
N
M
G
B
C
A
H
L
L
M
EF
D
C
B
ASolar-Divicon
BShut-off valves
CNon-return valves
DSolar circuit pump
EAir separator
FShut-off valve (adjusting screw
above flow indicator H)
GDrain valve
HFlow indicator
KFill valve
LStagnation heat sink
MExpansion vessel
NFlushing and filling facility
01. Open shut-off valves B: Turn the
ball valves (thermometers) clock-
wise through 45°.
02. Close shut-off valve F: Use a
screwdriver to turn the slot on the
adjusting screw to position "S".
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5772 274 GB
10
03. Connect hoses from flushing and
filling facility N to drain valve G
and fill valve K.
04. Fill the container of flushing and fill-
ing facility N with heat transfer
medium.
05. Open drain valve G and fill
valve K.
06. Start the fill pump of flushing and fill-
ing facility N.
07. Observe the fluid level in the con-
tainer and top up with heat transfer
medium if necessary to prevent any
air entering the solar circuit. Let the
fill pump of flushing and filling
facility N run until no more air bub-
bles rise to the top of the container
(at least 20 to 30 min).
Note
Briefly open shut-off valve F
towards the end of the flushing proc-
ess: Use a screwdriver to turn the
slot on the adjusting screw above
the flow indicator to the vertical posi-
tion. Any air that remains in the
return is eliminated.
08. Close drain valve G. Let the fill
pump of flushing and filling
facility N run until the required
charge pressure is reached.
Notes on residual ventilation
Even after thorough ventilation,
some dissolved air will still remain in
the heat transfer medium. This will
be released as the temperature
rises, and will be discharged via air
separator E.
09. Close fill valve K; stop the fill pump
of flushing and filling facility N.
Pressure must not drop for at least
30 minutes.
10. Open shut-off valve F: Use a
screwdriver to turn the slot on the
adjusting screw above the flow indi-
cator to the vertical position.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5772 274 GB
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9
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