Inspection And Maintenance; Inspection And Maintenance Intervals - Vaillant ECOTEC PLUS VU 80 Installation And Maintenance Instructions Manual

13

Inspection and maintenance

13 Inspection and maintenance
13.1

Inspection and maintenance intervals

Danger!
a
Negligent inspection and maintenance
results in a risk of injury as well as a risk
of material damage!
Negligence in inspection and maintenance
work as well as failure to comply with the
specified inspection and maintenance inter-
vals can impair the operating safety of the
boiler and lead to injuries and material
damage.
> Instruct the operator that the prescribed
inspection and maintenance intervals
must be complied with as a minimum
requirement.
> Carry out a regular inspection once a
year.
> Carry out regular maintenance work in
line with the findings from the
inspection.
The maintenance interval must not be
longer than five years.
Danger!
a
Risk of injury and death due to improper
inspection/maintenance!
Improper performance of inspections and
maintenance work can result in leaks or
even an explosion.
> Inspection and maintenance work on the
boiler must only be carried out by profes-
sionally qualified persons.
Any customer service work must be carried out by a profes-
sionally qualified person in accordance with the safety,
installation and operating provisions for gas-fired units.
Professional qualification must be confirmed by a corre-
spondingly recognised organisation or public office.
In addition, BS 6798: 2009 "Specification for the Installa-
tion and Maintenance of Gas-fired Boilers with a Maximum
Net Nominal Heat Output of 70 kW" contains the following
recommendations:
The person who carries out a combustion measurement
must be trained in the use of a flue gas measuring instru-
ment and in interpreting the results.
The flue gas measuring instrument used must meet the
requirements of BS 7927 or BS-EN50379-3 and must be cal-
ibrated in accordance with the requirements of the measur-
ing instrument manufacturer.
Professional qualification can be proven through the suc-
cessful completion of the relevant ACS standard assess-
ment, which covers the use of portable electronic flue gas
44
measuring instruments in accordance with BS 7967, part 1
to 4.
> The correct fuel type must be set on the flue gas meas-
uring instrument.
We recommend completing an inspection and maintenance
contract with a correspondingly qualified operator or
installer.
Inspection
The inspection is intended to determine the actual condi-
tion of the boiler and compare it with the target condition.
This is done by measuring, checking, observing. You must
carry out an inspection of the ecoTEC plus at least once
every year. A quick and economic inspection can be per-
formed without having to remove components by request-
ing data from the DIA system and carrying out simple visual
checks.
Service
Maintenance is required in order to eliminate any deviations
of the actual condition from the target condition. This is
normally done by cleaning, adjusting and, if necessary,
replacing individual components that are subject to wear.
Based on experience, it is not necessary to carry out annual
cleaning, e.g. on heat exchangers, under normal operating
conditions. As a competent person, you determine these
maintenance intervals and their scope based on the condi-
tion of the unit determined during the inspection, but main-
tenance must be carried out at least every 2 years.
> Carry out all inspection and maintenance work in the
order shown in table 13.2.
Danger!
a
Risk of poisoning and burns caused by
escaping hot flue gas!
Escaping hot flue gases can cause poison-
ing and scalding if the boiler is operated in
the following condition:
- without a completely installed flue pipe
- with an open flue pipe
- with internal leaks and open front casing.
> The boiler must only be operated with
the front casing closed and a completely
installed and closed flue pipe
- for initial start-up
- for test purposes
- in continuous mode.
ecoTEC plus installation and maintenance instructions 0020134823_01