Viessmann VITOGAS 100-F Mode d'emploi
Service instructions
for contractors
VIESMANN
Vitogas 100-F
Type GS1D
Rated heating output of 29 to 60 kW
Gas boiler
Natural gas and LPG version
For applicability, see the last page
VITOGAS 100-F
5692 699 GB 9/2012 Please keep safe.
2
Please follow these safety instructions closely to prevent accidents and mate-
rial 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 envi-
ronmental pollution.
Note
Details identified by the word "Note" con-
tain additional information.
Target group
These instructions are exclusively
designed for qualified personnel.
■ Work on gas equipment must only be
carried out by a qualified gas fitter.
■ 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
■ all legal instructions regarding the pre-
vention of accidents,
■ all legal instructions regarding envi-
ronmental protection,
■ the Code of Practice of relevant trade
associations,
■ all current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards,
■ Gas Safety (Installation & Use) Regu-
lations
– the appropriate Building Regulation
either the Building regulations, the
Building Regulation (Scotland),
Building Regulations (Northern Ire-
land),
– the Water Fittings Regulation or
Water Bylaws in Scotland,
– the current I.E.E. Wiring Regula-
tions.
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■ Never smoke. Prevent naked
flames and sparks. Never
switch lights or electrical appli-
ances ON or OFF.
■ Close the gas shut-off valve.
■ Open windows and doors.
■ Remove all people from the
danger zone.
■ Notify your gas or electricity
supplier from outside the build-
ing.
■ Shut off the electricity supply to
the building from a safe place
(outside the building).
Safety instructions
Safety instructions
5692 699 GB
3
If you smell flue gas
Danger
Flue gas can lead to life-threat-
ening poisoning.
■ Shut down the heating system.
■ Ventilate the boiler room.
■ Close all doors leading to the
living space.
Working on the system
■ When using gas as fuel, also close the
main gas shut-off valve and safeguard
against unauthorised reopening.
■ Isolate the system from the power sup-
ply and check that it is no longer 'live',
e.g. by removing a separate fuse or by
means of a main isolator.
■ Safeguard the system against unau-
thorised reconnection.
!Please note
Electronic modules can be dam-
aged by electro-static dis-
charges.
Touch earthed objects, such as
heating or water pipes, to dis-
charge static loads.
Repair work
!Please note
Repairing components which ful-
fil a safety function can compro-
mise the safe operation of your
heating system.
Replace faulty components only
with original Viessmann spare
parts.
Ancillary components, spare and
wearing parts
!Please note
Spare and wearing parts which
have not been tested together
with the heating system can com-
promise its function. Installing
non-authorised components and
non-approved modifications/con-
version can compromise safety
and may invalidate our warranty.
For replacements, use only orig-
inal spare parts from Viessmann
or those which are approved by
Viessmann.
Safety instructions
Safety instructions (cont.)
5692 699 GB
4
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance.......................................... 5
Further details regarding the individual steps....................................................... 6
Troubleshooting
Diagnostic system................................................................................................ 18
Ignition system
Time chart and function........................................................................................ 19
Designs
Burner control connection diagram...................................................................... 21
Draining/frost protection................................................................................... 23
Parts lists............................................................................................................ 24
Commissioning/service reports........................................................................ 28
Specification....................................................................................................... 29
Certificates
Declaration of conformity...................................................................................... 30
Keyword index.................................................................................................... 31
Index
Index
5692 699 GB
5
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps Page
••• 1. Preparing for commissioning and filling the heating
system............................................................................. 6
••• 2. Checking the gas type.................................................... 7
••• 3. Changing the gas type (if required).............................. 7
••• 4. Checking the static and supply pressure..................... 8
••• 5. Checking the nozzle pressure....................................... 10
••• 6. Determining the flue gas values.................................... 11
••• 7. Checking the ionisation current.................................... 12
••• 8. Checking the draught..................................................... 12
• • 9. Removing the burner...................................................... 13
• • 10. Checking the burner tubes............................................ 13
• • 11. Checking the pilot burner.............................................. 14
•12. Cleaning the heating surfaces (if required).................. 14
• • 13. Fitting the burner............................................................ 15
••• 14. Checking connections on the water side for tightness
••• 15. Checking the safety equipment
••• 16. Checking firm seating of electrical connections
••• 17. Checking all gas equipment for tightness at operating
pressure........................................................................... 15
••• 18. Checking the external LPG safety valve (if installed)
••• 19. Commissioning the system
••• 20. Checking the closing function of the valves in the gas
train
••• 21. Checking the flue gas monitoring device..................... 16
•22. Instructing the system user........................................... 17
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance
5692 699 GB
6
Preparing for commissioning and filling the heating system
Fill water
!Please note
Unsuitable fill water increases
the level of deposits and corro-
sion and may lead to boiler dam-
age.
■ Flush the heating system thor-
oughly before filling.
■ Only use fill water of potable
quality.
■ An antifreeze additive suitable
for heating systems can be
added to the fill water. The anti-
freeze manufacturer must ver-
ify its suitability.
■ Fill and top-up water with a
water hardness in excess of
the following values must be
softened, e.g. with a small soft-
ening system for heating water.
Total permissible hardness of the fill and top-up water
Total heating
output
Specific system volume
kW < 20 l/kW ≥ 20 l/kW to
< 50 l/kW
≥ 50 l/kW
≤ 50 ≤ 3.0 mol/m3
(16.8 °dH)
≤ 2.0 mol/m3
(11.2 °dH)
< 0.02 mol/m3
(0.11 °dH)
> 50 to ≤ 200 ≤ 2.0 mol/m3
(11.2 °dH)
≤ 1.5 mol/m3
(8.4 °dH)
< 0.02 mol/m3
(0.11 °dH)
> 200 to ≤ 600 ≤ 1.5 mol/m3
(8.4 °dH)
≤ 0.02 mol/m3
(0.11 °dH)
< 0.02 mol/m3
(0.11 °dH)
> 600 < 0.02 mol/m3
(0.11 °dH)
< 0.02 mol/m3
(0.11 °dH)
< 0.02 mol/m3
(0.11 °dH)
1. Check that the installation room vent
is open.
2. Check the pre-charge pressure of the
diaphragm expansion vessel.
If the pre-charge pressure of the dia-
phragm expansion vessel is lower
than the static system pressure, top
up with sufficient nitrogen to raise the
pre-charge pressure 0.1 to 0.2 bar
higher than the static system pres-
sure.
3. Open the check valves (if installed).
Commissioning, inspection, maintenance
Further details regarding the individual steps
5692 699 GB
7
4. Fill the heating system with water and
vent until the fill pressure indicated at
pressure gauge A is 0.1 to 0.2 bar
higher than the pre-charge pressure
of the diaphragm expansion vessel.
Minimum system pressure 0.8 bar;
permissible operating pressure
3 bar.
5. Return the check valves to their oper-
ating position.
Checking the gas type
Note
The boiler is preset in the factory for nat-
ural gas E.
1. Check the gas type and Wobbe index
with your gas supply utility or your
LPG supplier and compare them with
the details on the burner label.
2. If the details do not match, convert
the burner to the available gas type,
in accordance with the information
provided by the gas supply utility or
the LPG supplier.
Conversion kit installation
instructions
3. Record the gas type in the report on
page 28.
Wobbe index ranges
Gas type Wobbe index range Ws
kWh/m3MJ/m3
Delivered condition
Natural gas E 12.0 to 16.1 43.2 to 58.0
After conversion
LPG P 20.3 to 21.3 72.9 to 76.8
Changing the gas type (if required)
Conversion kit installation
instructions
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 699 GB
8
Checking the static and supply pressure
Danger
CO build-up as a result of incor-
rect burner adjustment can have
serious health implications.
Carry out a CO test before and
after work on gas appliances.
Operation with LPG
Flush the LPG tank twice during com-
missioning or replacement. Vent the tank
and gas connection line thoroughly after
flushing.
A
01. Close the gas shut-off valve.
02. Release screw inside test nip-
ple A on the gas train, but do not
remove it; then connect the pres-
sure gauge.
03. Open the gas shut-off valve.
04. Check the static pressure:
■ Natural gas: max. 25 mbar
■ LPG: max. 57.5 mbar
Record the actual value in the serv-
ice report.
05. Start the boiler.
Note
During commissioning, the boiler
can enter a fault state because of
airlocks in the gas line. You can
reset the burner after approx.
10 seconds. For this, switch the
boiler OFF and ON at the control
unit ON/OFF switch.
06. Check the supply pressure (flow
pressure):
■ Natural gas: 8 to 25 mbar
■ LPG: 27.7 to 57.5 mbar
Note
Use a suitable measuring device
with a resolution of at least
0.1 mbar to check the supply pres-
sure.
Record the actual value in the serv-
ice report.
Note
We recommend that the boiler is
equipped with a gas pressure
switch. During assembly, set the
gas pressure switch to the following
values:
■ Natural gas: 8 mbar
■ LPG: 22 mbar
07. Take action as shown in the follow-
ing table.
08. Switch OFF the control unit ON/OFF
switch (the boiler shuts down).
09. Close the gas shut-off valve.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 699 GB
9
10. Remove the pressure gauge and
seal test nipple A with screw.
11. Open the gas shut-off valve and
check test nipple A for gas tight-
ness.
Danger
Gas escaping from the test
nipple leads to a risk of
explosion.
Check the test nipple for gas
tightness.
Supply pressure (flow pressure): Action
Natural gas LPG
Below 8 mbar Below 27.7 mbar ■ Do not commission the boiler
■ Notify your gas supply utility or your
LPG supplier
8 to 25 mbar 27.7 to 57.5 mbar Commission the boiler
Above 25 mbar Above 57.5 mbar ■ Install a separate gas pressure gover-
nor upstream of the system
■ Setting the pre-charge pressure:
20 mbar for natural gas
30 mbar for LPG
■ Notify your gas supply utility or your
LPG supplier
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 699 GB
10
Checking the nozzle pressure
A
B CD
1. Close the gas shut-off valve.
2. Release the screw inside test nipple
A, but do not remove, then connect
the pressure gauge.
3. Open the gas shut-off valve.
Start the boiler.
4. Check the nozzle pressure.
In case of deviation from the value
in the following table remove pro-
tective cap B.
Adjust the nozzle pressure with
screw C.
Note
Screw D has no function.
5. Check the setting values and record
them in the report.
6. Reposition protective cap B.
7. Switch OFF the system ON/OFF
switch on the control unit (the boiler
shuts down).
8. Close the gas shut-off valve.
9. Remove the pressure gauge and seal
test nipple A with screw C.
10. Open the gas shut-off valve, start
the boiler and check test nipple A
for gas tightness.
Danger
Gas escaping from the test
nipple leads to a risk of
explosion.
Check the test nipple for gas
tightness.
Commissioning, inspection, maintenance
Further details regarding the individual steps (cont.)
5692 699 GB
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