Viessmann VITOSOL-F Operating instructions
Service instructions
for contractors
VIESMANN
Vitosol-F
For applicability, see the last page
VITOSOL-F
5692 887 GB 10/2012 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
designed 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 requirements
■ Legal instructions regarding the pre-
vention of accidents
■ Legal instructions regarding environ-
mental protection
■ 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 and SWKI
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 unau-
thorised reconnection.
!Please note
Electronic assemblies can be
damaged by electrostatic dis-
charges.
Before beginning work, earthed
objects, such as heating or water
pipes, must be touched to dissi-
pate any static charge.
Repair work
!Please note
Repairing components that fulfil a
safety function can compromise
the safe operation of your sys-
tem.
Replace faulty components only
with original Viessmann spare
parts.
Safety instructions
Safety instructions
5692 887 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.)
5692 887 GB
4
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 5
Further details regarding the individual steps....................................................... 6
Scope of inspection........................................................................................... 13
Parts lists
Ordering parts...................................................................................................... 14
Specification
Vitosol 100-F........................................................................................................ 16
Vitosol 200-F........................................................................................................ 16
Vitosol 200-F, type SVE....................................................................................... 16
Vitosol 300-F........................................................................................................ 16
Certificates
Declaration of conformity...................................................................................... 18
Index
Index
5692 887 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 changing the pre-
charge pressure of the expansion vessel if necessary 6
••• 2. Checking the function of the safety equipment
••• 3. Checking electrical connections..................................... 8
•4. Flushing, checking for leaks and charging the solar
thermal system................................................................. 8
••• 5. Determining and adjusting the flow rate if required...... 10
• • 6. Commissioning the system............................................. 11
••• 7. Checking the switching function of the solar control
unit..................................................................................... 11
• • 8. Checking and replacing the heat transfer medium if
required............................................................................. 11
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5692 887 GB
6
Checking pressure conditions and changing 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
5692 887 GB
7
P
5
1
3
2
4
1System pressure of the solar thermal system 1.0 bar
2Supplement, static head 0.1 bar/m ................ bar/m
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
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 887 GB
8
Checking electrical connections
Check the tightness of the electrical
plug-in connectors and cable grom-
mets; check cables for damage.
Flushing, checking for leaks and charging the solar thermal sys-
tem
!Please note
Charging 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 charging
the solar thermal system:
–Filling trolley and filling station
These contain high speed pumps
with high pump rates, a filter and a
container for heat transfer medium.
–Filling facility, 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.)
5692 887 GB
9
P
E
B
D
A
CF
AShut-off valve
BDrain valve
CFill valve
DContainer for heat transfer medium
EPressure gauge
FFill pump
1. Open shut-off tap or valves.
Note
With the Solar-Divicon, open the non-
return valves by turning the thermom-
eters clockwise through 45°.
2. Close shut-off valve A.
3. Open drain valve B and fill
valve C.
4. Connect hoses from the flushing and
filling facility. Fill the container with
heat transfer medium.
Note
Flush the system via the return con-
nection (flow direction to the collec-
tor).
Use a high speed pump for this pur-
pose.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 887 GB
10
5. Observe the fluid level in con-
tainer D and top up with heat trans-
fer medium if necessary to prevent
any air entering the solar circuit. Let
fill pump F run until no more air bub-
bles rise to the top of the container.
6. Close drain valve B. Let fill
pump F 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 the air sep-
arator.
7. Close fill valve C; switch OFF fill
pump F.
Pressure must not drop for at least 30
minutes.
8. Open shut-off valve A.
9. Vent the circulation pumps. Select
manual mode.
Repeat the ventilation process until
the float in the flow indicator holds
a constant position when the pump is
running.
2
4
6
8
10
12
l/min
Note
If there is air in the system, the float
will cycle.
Determining and adjusting the flow rate if required
Check the value at the bottom edge of
the flow indicator float.
In conjunction with multi stage circulation
pumps, set the required flow rate via the
output stage (see the following table for
approximate set values).
Flow rates to be set
The details in the following table do not
take the pipe pressure drop into
account.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 887 GB
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16
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