2.2.4
Plant operation
The ventilation unit may only be operated provided all the requisite connections associated with
the planned and provided external subassemblies and components such as pre-heating battery
with air filter, re-heating battery, acoustic damping etc. have been properly made and are ready for
operation.
The ventilation unit must be shut down immediately and isolated from mains in the event of faults, defects or
damage holding a potential hazard to persons or components. Further operation of the plant must be effectively
prevented until repairs have been made. Measures must be taken to prevent accidental switch-on!
Be aware of your safety and hazards when opening the front covers or removing cover plates. Any
potentially unsafe operation is prohibited.
The units may only be operated with connected air ducts and installed system components such as acoustic
dampeners and with minimum duct lengths of 1 000 mm to ensure, for instance, that the fans cannot be touched.
The ventilation units shall only be operated in accordance with the project documentation which shall comply
with the Equipment and Product Safety Act and the pertinent provisions of the EC Directives and Standards.
Consider environmental impacts and refrain from installing the ventilation units in the vicinity of flammable
liquids or gases, in swimming pools or in areas exposed to chemicals or hazardous substances.
Never operate the ventilation unit without air filters. Air filters must be checked regularly for dirt and damage and
replaced, if necessary. The control unit will warn of the need to replace filters. Use only original replacement
filters. If the plant is not used for an extended period (e.g. in summer), the air filters must for hygienic reasons be
replaced prior to re-commissioning.
3 Ventilation system functionality
3.1
System description
Centralised ventilation extracts air from rooms such as bedroom, lounge, bathroom, toilet and kitchen and
replaces this air with filtered outside air.
Large savings in energy may be achieved in plants which are in constant operation, thanks to highly efficient heat
exchangers recovering heat from the extract air and energy efficient fans with state of the art EC technology for
controlled airflow.
This technology is particularly cost effective when buildings have air-tight shells and are effectively thermally
insulated. Efficient heat exchangers will allow substantial energy savings. Demands for economical and energy
efficient operation may be satisfied using variable volume air flow systems for comfort zone ambient air,
especially through on-demand fan control in coordination with, for instance, electronic control of volume flow.
The Pichler Air2 system will control these complex processes.
O P E R A T I N G A N D I N S T A L L A T I O N I N S T R U C T I O N S L G
7 5 0 - L G 6 0 0 0
P A G E
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