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7
Inspection and maintenance
7
Inspection and maintenance
7.1
Inspection and maintenance intervals
a
Danger!
Risk of injury and risk of damage to prop-
erty due to neglected inspection and main-
tenance!
Neglected inspection and maintenance works
or not observing the stated inspection and
maintenance intervals can interfere with the
operational safety of the boiler and can result
in damage to property and to persons.
> Point out to the operator that he must
observe the demanded inspection and
maintenance intervals as a minimum.
> Carry out proper regular inspections once
a year.
> Carry out regular maintenance as dictated
by findings during the inspection process.
The frequency of maintenance must not be
longer than every 5 years.
a
Danger!
Danger of life and limb due to improper
inspection/maintenance!
Inspections/Maintenance work carried out
improperly can result in leakages and explo-
sion.
> The boiler may only be inspected/main-
tained by a competent person.
All service work must be carried out by a competent
person in accordance with the Gas safety, installation
and use regulations. In the UK this is considered to be a
person approved at the time by the Health and Safety
Executive.
In addition BS 6798: 2009 "Specification for installation and
maintenance of gas-fired boilers of rated input not exceeding
70 kW net" advises that:
- The person carrying out a combustion measurement
must be assessed as competent in the use of a flue
gas analyser and the interpretation of the results.
- The flue gas analyser used must be one meeting the
requirements of BS7927 or BS-EN50379-3 and be cali-
brated in accordance with the analyser manufacturers'
requirements.
- Competence can be demonstrated by satisfactory
completion of the relevant ACS standard assessment,
which covers the use of electronic portable flue gas
analysers' in accordance with BS 7967, parts 1 to 4.
- The flue gas analyser is set to the correct fuel setting.
50
We recommend the conclusion of an inspection and
maintenance contract with an approved company or installer.
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 deviations
of the actual condition from the specified condition. This nor-
mally is done by cleaning, adjustment and, if necessary,
replacing individual components that are subject to wear.
You must carry out an annual inspection of the
Vaillant ecoTEC.
It is possible to perform a quick, accurate inspection without
removing components by requesting data from the DIA
system, carrying out the simple visual checks indicated in
Table 7.2 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 inspection.
All inspection and maintenance work should be performed in
the order specified in Table 7.2.
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 opened air/flue gas duct
- with internal leakages and an opened front
casing.
> Operate the boiler
- for commissioning
- for testing purposes
- in continuous mode
only with closed front casing and com-
pletely mounted and closed air/flue gas
duct.
7.1.1
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
series status only genuine Vaillant spare parts must be
used when carrying out inspection, maintenance and
repair work.
For an overview of the available original Vaillant spare
parts, contact the Vaillant sales office on
01634 292310.
Instructions for installation and servicing ecoTEC 839592_13
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