Vaillant ecoTEC plus VU Series Installation And Maintenance Instructions Manual - page 24
8 Inspection and maintenance
24
Installation and maintenance instructions ecoTEC plus 0020029173_04
6.
Inform the operator about measures taken to ensure the
supply of combustion air and flue gas guiding, and in-
struct the operator that he must not make any changes.
8
Inspection and maintenance
▶
Carry out all inspection and maintenance work in the
order shown in the table "Overview of inspection and
maintenance work".
8.1
Observing inspection and maintenance
intervals
Warning.
Risk of injury and a risk of material dam-
age caused by negligent inspection and
maintenance work.
Negligence in inspection and maintenance
work, as well as failure to comply with the
specified inspection and maintenance in-
tervals, may impair the operational safety of
the product and lead to injuries and material
damage.
▶
Instruct the operator that the prescribed
inspection and maintenance intervals
must be complied with as a minimum re-
quirement.
▶
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 two years.
Warning.
Risk of injury and death due to improper
inspection and maintenance!
Improper performance of inspections and
maintenance work may result in leaks or
even an explosion.
▶
Inspection and maintenance work on the
product must only be carried out by pro-
fessionally qualified persons.
Any customer service work must be carried out by a profes-
sionally qualified person in accordance with the safety, in-
stallation and operating provisions for gas-fired units. Pro-
fessional qualification must be confirmed by an adequately
recognised organisation or public office.
Note
The person who carries out a combustion meas-
urement must be trained in the use of a flue gas
measuring instrument and in interpreting the res-
ults. The flue gas measuring instrument that is
used must be calibrated in accordance with the
specifications of the measuring instrument manu-
facturer. The correct fuel type must be set on the
flue gas measuring instrument.
Proper, regular inspection and maintenance, and the ex-
clusive use of original spare parts are absolutely essential
to ensure fault-free operation and a long working life for the
product.
Inspection
The inspection is intended to determine the actual condition
of the product and compare it with the target condition. This
is done by measuring, checking and observing.
Maintenance
Maintenance is required in order to eliminate any deviations
of the actual condition from the target condition. This usually
involves cleaning, adjusting and, if required, replacing indi-
vidual components that are prone to wear (e.g. the burner
flange seal (article number 180904), the burner insulation on
the burner flange (article number 180913) and the burner in-
sulation on the back wall of the heat exchanger (article num-
ber 0020093190)).
8.2
Procuring spare parts
The original components of the product were also certified
as part of the declaration of conformity. If you do not use cer-
tified Vaillant original spare parts for maintenance or repair
work, this voids the conformity of the product. We therefore
strongly recommend that you fit Vaillant genuine spare parts.
Information about available Vaillant original spare parts is
available by contacting the contact address provided on the
reverse of this document.
▶
If you require spare parts for maintenance or repair work,
use only Vaillant genuine spare parts.
8.3
Removing the compact thermal module
Danger!
Risk of death and risk of material damage
caused by hot flue gas.
The seal, burner insulation and self-locking
nuts on the burner flange must not be dam-
aged. Otherwise, hot flue gases may escape
and cause personal injury and material dam-
age.
▶
Replace the seal each time you open the
burner flange.
▶
Replace the self-locking nuts on the
burner flange each time you open the
burner flange.
▶
If the burner insulation on the heat ex-
changer's burner flange shows signs of
damage, replace the burner insulation.
▶
Replace the burner insulation on the back
wall after each time the burner flange is
opened.
Note
The compact thermal module consists of four
main components:
– Speed-regulated fan,
– Gas-air mixture fitting,
– Gas supply (mixture pipe) to the premix burner,
– Premix burner.