Vaillant ecoCOMPACT VCC4 Series, Installation And Maintenance Instructions Manual

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9 Inspection and maintenance
32
Installation and maintenance instructions ecoCOMPACT 0020181421_04
to comply with the applicable regulations
regarding legionella prevention.
7. Inform the end user that the specifications for domestic
hot water apply.
9 Inspection and maintenance
▶
Carry out all inspection and maintenance work in the
order shown in the table "Overview of inspection and
maintenance work".
Inspection and maintenance work
–
Overview ( Applicab-
ility: Belgium OR Austria)
Inspection and maintenance work
–
Overview
(
→
Page 49)
9.1 Observing inspection and maintenance
intervals
Proper regular inspections (once a year) and maintenance
(depending on the result of the inspection, but at least once
every two years) combined with the exclusive use of original
spare parts are decisive factors in ensuring smooth opera-
tion and long working life for the product.
We recommend taking out an inspection or maintenance
contract.
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 is nor-
mally done by cleaning, setting 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. The maintenance intervals and the scope of the
maintenance intervals are determined by the specialist in-
staller depending on the conditions on inspection. It is nev-
ertheless necessary to carry out maintenance work at least
every two years.
9.2 Procuring spare parts
The original components of the product were also certified
by the manufacturer as part of the declaration of conformity.
If you use other, non-certified or unauthorised parts during
maintenance or repair work, this may void the conformity of
the product and it will therefore no longer comply with the
applicable standards.
We strongly recommend that you use original spare parts
from the manufacturer as this guarantees fault-free and safe
operation of the product. To receive information about the
available original spare parts, contact the contact address
provided on the reverse of these instructions.
▶
If you require spare parts for maintenance or repair
work, use only the spare parts that are permitted for the
product.
9.3 Using the function menu
The function menu allows you to actuate and test individual
components in the heating installation.
Menu
→
Installer level
→
Test programs
→
Function menu
▶
Choose the heating installation components.
▶
Press ( Select ) to confirm your selection.
Display
Test
programme
Action
T.01 Check internal
pump Switch the internal pump on
and off.
T.02 Check 3-port
valve Move the prioritising diverter
valve to the heating position
or to the domestic hot water
position.
T.03 Check fan Switch the fan on and off.
The fan runs at maximum
rotational speed.
T.05 Check circulation
pump Switch the circulation pump
on and off.
T.06 Check external
pump Switch the external pump on
and off.
T.08 Checking the
burner The product starts up and
switches to minimum load.
The flow temperature is
shown in the display.
Terminate function menu
▶
To terminate the function menu, select ( Cancel ).
9.4 Carrying out electronics self-tests
Menu
→
Installer level
→
Test programs
→
Electronics
self-test
You can use the electronics self-test to check the PCB in
advance.
9.5 Removing the compact thermal module
Note
The compact thermal module consists of five main
components:
–
Speed-regulated fan,
–
Gas valve including support plate,
–
Venturi including mass flow sensor and gas
connection pipe,
–
Burner door,
–
Premix burner.
Danger!
Risk of death and risk of material damage
caused by hot flue gas.
The seal, heat insulation and self-locking nuts
on the burner flange must not be damaged.
Otherwise, hot flue gases may escape and
cause personal injury and material damage.
▶
Replace the seal each time you open the
burner flange.