Vaillant ecoTEC plus SERIES Instructions For Installation And Servicing - page 33
33
Instructions for installation and servicing ecoTEC plus 0020020828_07
We recommend the conclusion of an inspection and
maintenance contract with an approved company or in-
staller. The inspection serves to determine the actual
condition of the respective boiler and compare it with
the specified condition. This is done by measuring,
checking and observing.
Maintenance is required in order to eliminate any devia-
tions of the actual condition from the specified condi-
tion. This normally is done by cleaning, adjustment and,
if necessary, replacing individual components that are
subject to wear. You must carry out an annual inspec-
tion of the Vaillant ecoTEC.
It is possible to perform a quick, accurate inspection
without removing components by carrying out the sim-
ple visual checks indicated in Table 8.2 and performing
a flue gas measurement.
The maintenance intervals (at least once every 5 years)
and their scope are determined by the heating engineer
based on the condition of the boiler found during the in-
spection.
All inspection and maintenance work should be per-
formed in the order specified in Table 8.2.
a
Danger!
Possible poisoning and burning by escaping hot
flue gases!
It is possible that hot flue gases escape and
could result in poisoning or burning, if the boiler
is operated
- without a completely installed air/flue gas
duct,
- with an open air/flue gas duct,
- with internal leakages and an opened front
casing.
• Operate the boiler with care
-
for
commissioning,
- for testing purposes.
• Operate the boiler in continuous mode only
with closed front casing and completely
mounted and closed air/flue gas duct.
8.1.1
General inspection and maintenance
instructions
To ensure the faultless operation, long term availability
of all functions and long working life of your Vaillant
boiler and to prevent modifications to the approved se-
ries status only genuine Vaillant spare parts must be
used when carrying out inspection, maintenance and re-
pair work. For an overview of the available original Vail-
lant spare parts, contact the Vaillant sales office on
01634 292310.
During any inspection and maintenance or after change
of parts of the combustion circuit, the following must be
checked:
- The appliance has been installed in accordance with
the relevant installation instructions.
- The integrity of the flue gas installation and flue seals
is in accordance with the relevant flue installation in-
structions enclosed.
- Visual, the integrity of the boiler combustion circuit
and relevant seals.
- The gas inlet working pressure at maximum rate as
described in section 5.1.2.
- The gas flow rates as described in section 5.1.6.
- Correctness of electrical, water and gas connections.
- Correctness of the water pressure.
- The condition of the whole system, in particular the
condition of radiator valves, evidence of leakage from
the heating system and dripping taps.
h
Note!
If it is necessary to keep the main switch on
for certain inspection and maintenance, this is
indicated in the description of the maintenance
task.
h
Note!
The boiler is fitted with a flue gas analysis
point. A suitable flue gas analyser can be con-
nected to this point to establish the combustion
performance of the boiler. Checking/
adjustment of this value is required in the
following instances; replacement of gas valve,
conversion to or from Natural Gas/LPG as part
of the service schedule or if incorrect combus-
tion is suspected (see section 9).
8.1.2 Maintenance
Before commencing any servicing or maintenance work,
carry out an initial inspection of the system as follows:
• Inspect the flue, pipe work and electrical connections
for indications of damage or deterioration.
• Inspect the air supply and ventilation arrangements
of the installation.
• Check the heating and water system, in particular the
condition of radiator valves, evidence of leakage from
the heating system and dripping hot water taps.
• Carry out inspection or maintenance in accordance
with table 8.1 below.
8.1.3 Checking
the
CO/CO
2
ratio
h
Note!
Checking/adjustment of the CO/CO
2
ratio is re-
quired in the following instances:
- replacement of gas valve,
- conversion to or from Natural Gas/LPG,
- or if an incorrect combustion is suspected.
h
Note!
The boiler is fitted with a flue gas analysis
point A suitable flue gas analyser can be con-
nected to this point to establish the combus-
tion performance of the boiler.
Inspection and maintenance 8