Vaillant geoTHERM SERIES, Руководство по установке, Страница: 96 / 132

Inspection and maintenance
96
Installation instructions geoTHERM 0020051574_04
10
10 Inspection and maintenance
10.1 Notes on inspection and maintenance
Continued efficient operation, reliability and a long service
life require inspection and maintenance work to be carried
out on the heating system by an approved heating engineer
on an annual basis.
The inspection is intended to determine the actual condi-
tion of the respective device and compare it with the nomi-
nal condition. This is done by measuring, checking, observ-
ing.
Maintenance is required in order to correct possible devia-
tions of the actual condition from the target condition. This
normally is done by cleaning, adjustmenting and, if neces-
sary, replacing individual components that are subject to
wear.
a
Danger:
Risk of damage and personal injury
through neglected and improper inspec-
tion and maintenance.
Inspection and maintenance must only be
carried out by an approved heating engi-
neer.
>
Carry out the inspection and mainte-
nance work described on a regular basis
and to a professional standard.
e
Danger:
Risk of electric shock.
>
Always switch off all power supplies
before carrying out any electrical instal-
lation or servicing work.
>
Check that there is no voltage.
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Ensure that the power supplies are
secured against being inadvertently
switched on again.
a
Danger:
Risk of combustion due to hot pipes and
components.
Pipes and components of the heat pump
can become extremely hot during opera-
tion.
>
Allow the heat pump system to cool
down sufficiently before inspection and
maintenance work is started.
Only genuine Vaillant spare parts may be used for mainte-
nance and repair work to ensure long-term correct opera-
tion of the geoTherm heat pump and to prevent the
approved factory settings from being changed.
Replacement parts
An overview of the available genuine Vaillant spare parts
can be obtained:
– From your parts wholesaler.
– Alternatively contact Spares Technical Enquiries on
01773 596615 or via email: technicalspares@groupserv-
ice.co.uk
10.2 Carrying out the inspection
The following work must be performed during the annual
inspection.
– Check the pressure in the heating circuit.
– Check the quantity and concentration of the brine fluid
and the pressure in the brine circuit (VWS only).
10.3 Carrying out the maintenance work
The heat pump is designed in such a way that only a very
few maintenance operations need to be carried out. These
maintenance operations must be carried out once a year, or
as a result of the inspection.
– Check and clean the dirt filters in the heating circuit.
– Check and clean the dirt filters in the well water circuit
(VWW only).
– Check the expansion vessel in the heating circuit for cor-
rect operation.
– Top up the heating water if the pressure in the heating
circuit is too low (
¬
Ch. 6.2 ).
a
Danger:
Risk of personal injury through improper
maintenance of the coolant circuit.
The burning of coolant produces toxic cya-
nide gases. If the point where coolant is
escaping is touched, it may lead to frost-
bite.
>
Ensure that only officially certified spe-
cialists with appropriate protective
equipment perform maintenance work or
access the coolant circuit.
According to Article 3 of (EC) Ordinance No. 842/2006 of
the European Parliament and the Council of 17th May 2006
regarding specific fluorinated greenhouse gases, the opera-
tor of heat pumps with hermetically-sealed systems con-
taining more than 6 kg of fluorinated greenhouse gases is
obliged to have the leak-tightness of the system checked by
qualified personnel once a year.
VWS/VWW 380/2 and 460/2 only:
– Check all components of the coolant circuit for corrosion
and wear.
– Check the coolant circuit for leak tightness.