15
an appropriate control devices, or the appliance must be put out of operation for the period when
filters are at the risk of moistening (if the type of operation allows this).
Ü
Air duct including accessories with autonomous regulation of operation is to be connected on the
fresh air supply. Such duct will, in compliance with the regulation VDI 6022, provide for
appropriate treatment of supplied fresh air to prevent air filter from getting wet. In case the duct is
not connected or if it does not include such accessory, the appliance is to be put out of operation
as long as the risk of air filters to get wet persists (thick fog, snowing).
Ü
Operators must be familiar with the tasks and functions as well as the individual components of
the appliance.
Ü
The appliance must be regularly inspected, cleaned and maintained by sufficiently qualified
personnel (see the following chapter).
Ü
Regardless of their qualifications, personnel must undergo hygiene training (see the following
chapter).
Ü
The user must be able at any given time to provide evidence as to the qualifications of operators.
If sufficient number of qualified operational and service staff are not available, those activities must
be commissioned to a specialist company that will be responsible for the proper operation of the
appliance.
Ü
The user has an obligation to carry out regular hygiene inspections of the appliance every 3 years
(see following chapters).
Ü
The appliance must not be operated without air filters. The filter grade of supply fresh air must be
at least ISO ePM1 50% (F7). The filter grade of exhaust air must be at least ISO ePM10 50%
(M5).
Ü
If the appliance has been out of operation for a longer period of time, it must be cleaned
thoroughly before recommissioning; if stricter hygienic requirements apply, wiping disinfection
must be carried out.
Ü
After disinfecting make sure that no toxicologically suspicious or odour-active substances enter
supply air!
Ü
The user has an obligation to appropriately record the appliance's operation (e.g. in the
operational logbook).
6.2.
Required qualifications of personnel as per the type of activity
Activities
Operators
Inspection
Maintenance
Repairs
Required
personnel
qualifications
No special
professional
qualifications
Professional engineering
qualifications in building
maintenance, familiarity
with measurement
procedures for the
hygiene inspections of
HVAC devices
Professional qualifications in
electrical or metal engineering with
relevant experience in the field of
HVAC (familiarity with equipment
design, measurement
technologies, equipment control
and function)
**
Required hygiene
training of
personnel
Category B
Category A
Category B
**
simple inspection and maintenance of the equipment (e.g. replacing filter cassettes, regular
cleaning of equipment etc.) may be carried out by personnel without professional qualifications who
received category B hygiene training
a) Category B hygiene training of personnel
Ü
Personnel must demonstrate familiarity with the following areas:
(1) Need for and the importance of hygiene during the operation of HVAC equipment
(2) Hygiene issues of individual aggregates carrying air through HVAC equipment
(3) Maintenance of HVAC equipment, the effects of its size on determining maintenance
intervals
(4) Simple measurement methods for checking HVAC equipment
(5) Actions to be taken in the case of occurrence of substances harmful to the environment and
their removal
(6) Personal protective measures in the area of hygiene during operation and service activities
(7) Key regulations (in particular regulations on accident control) and technical standards
(8) Handling chemical cleaning and disinfecting agents
