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  PAH Series - Central Station Air Handling Units


• Wide range of capacities, from 566 L/s (1200 CFM) to 28317 L/s (60,000 CFM) 

• Easy to maintain 

• High design flexibility

• Custom-made designs


Petra's PAH units are built from modular sections, allowing units to be fitted and sized exactly to customers’ specifications. A computer selection program allows fast and accurate selection of PAH units at different conditions. These units are widely used in a variety of applications. The units are designed to provide easy service and access to major components. Quick release access doors/panels offer complete accessibility to fans, coils and filters.


• Penta-post construction is used for a unique rigid construction with single or double skin panels

• Double skin panels are insulated with fiberglass as standard or polyurethane as an option (1" or 2" thick insulation)

• Various metals can be used for the inner and outer skin panel's construction including galvanized steel, painted galvanized steel, aluminum,
  stainless steel or perforated steel

• Fan wheels can be forward, backward or aerofoil curved depending on the requirement 

• Fan-motor assembly is fixed on a floating frame for vibration isolation

• Coil section can be supplied with heating and/or cooling coils and/or DX coils

• Options include dampers for fresh and return air, economizer, attenuators, frequency inverters, air washers, and heat recovery systems,
  amongst others

• Other options include: inspection windows, Bulk head lights, steam humidifiers, electric heaters

• Gas Heat Units

• Various types of filters are available including flat, synthetic, aluminum, pleated, bag, HEPA, auto-roll, carbon, V-type, etc.

All models specifications are subject to change without prior notice.
Petra Engineering Industries Co. is a market leader as a designer and manufacturer of sophisticated, high quality commercial and industrial HVAC equipment.
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Disclaimer: “These are pictures of representative customers who have purchased air conditioning, heating, refrigeration or ventilation equipment from Petra Engineering Industries. Our inclusion of these pictures should not suggest that these customers endorse our products."