• 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.