Pfannenberg PTF Serie Instrucciones De Servicio página 54

ENG
3.4.1.1 PTFA top exhaust filter
Fig. 4: Functional description of the PTFA top exhaust filter (example)
1 PTFA top exhaust filter
2 Switch cabinet
The Pfannenberg PTFA top exhaust filter serves for ventilation and heat dissipation from switch cabinets and electronic
housings.
Climatization is achieved by feeding in ambient air with a temperature below the permitted switch cabinet interior temperature.
The PTFA should be operated together with an opening to the air inlet which lets through sufficient air for the application and
should be located in the lower third of the the switch cabinet or electronic housing to be ventilated. Pfannenberg filterfans (PF)
for actively sucking in the air are typically used for this. The heated air is conducted out of the switch cabinet through the top
exhaust filter.
Operating Manual | Top Filterfans / Top Exhaust Filter | – 230 / 115 V | 086150000
3 Air inlet (e.g. Pfannenberg PF filterfan)
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