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  PDC Series - Petra Dry Cooler


• Wide range of capacities: from 3 T.R.  to 312 T.R. @ 50 Hz - 5 T.R.  to 341 T.R. @ 60 Hz

• Quick and easy installation and maintenance

• Extremely quiet operation 

• Smart control


Petra's Dry Cooler (PDC) Unit is the outdoor element of Petra's ESC System which is designed to work under all normal conditions. Its low noise features make it suitable for all applications (offices, residential, shopping centers, etc.) Different capacities are available to match the PWSP (Water Source) series and one Dry Cooler can be coupled to multiple PWSP (Water Source) Units. Petra's Dry Cooler coils are designed to deliver their respective duties at an optimum performance levels of design conditions. Coils are manufactured of seamless copper tubes mechanically expanded into aluminum fins. End plates contain die formed extruded tube holes for maximum tube protection and support. All coils are leak tested at 450 PSI air pressure. All coils undergo dry chemical cleaning after manufacturing to ensure system cleanliness.


• V-type evaporator coils - V-Bank arrangement design

• Highly efficient coil design with minimum pressure drop for water side

• Available with aluminum, polyurethane pre-coated, copper and post coated coils

• Low noise fan with internally protected fan motor

• With or without integrated system pump

• Direct drive axial condenser fans

• Galvanized C-channel structural steel bases

• Fan speed can be controlled using VFD (Variable Frequency Drives)

• Exposed water lines coated  with an epoxy  protective layer for long lasting resistance

• Unit casing is fabricated from heavy gauge galvanized steel with oven baked polyester electro-static powder paint

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."