All Products >  Chillers >    Air-Cooled Water Chiller with Semi-Hermetic Reciprocating Compressors (APX) >  
  APX Series - With Semi- Hermetic Reciprocating Compressors


• Wide Range of Capacities:

 APX - R407c:   35 T.R. to 390 T.R. @ 50 Hz - 40 T.R. to 460 T.R. @ 60 Hz
 APXa - R134a: 20 T.R. to 250 T.R. @ 50 Hz - 25 T.R. to 300 T.R. @ 60 Hz

• Optimal Performance

• Compact Design

• Easy Installation and Maintenance



Petra's line of air-cooled water chillers are designed to meet the most demanding requirements of air conditioning applications in all types of buildings. These packaged air-cooled water chillers meet the high engineering and performance standards that are characteristic of all Petra air conditioning units.  A wide range of capacities and options are made available to meet precise design requirements.


• Semi-hermetic reciprocating type compressor

• Independent Refrigeration Circuits

• Microprocessor controller

• Shell and tube evaporator

• V-type condenser coils

• Available with Aluminum, Polyurethane Pre-coated, Copper and Post Coated Coils

• Easily accessible IP 55 electrical panel

• Direct drive axial condenser fans

• Galvanized C-Channel structural steel bases

• Exposed insulated refrigeration lines covered with special protective wrapping for long lasting resistance

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

• Equipped with complete line of accessories for safe operation and control

• Options include heat reclaim heat exchangers, heat pump chillers, brine chillers, compressor part winding, coils protective
   coating, compressor noise compartment, pressure gauges, 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."