Air Cooled Water Chiller with reciprocating Compressor-APX

Petra air-cooled liquid chillers (APX) with semi-hermetic reciprocating compressors are available in a wide range of sizes to meet customer requirements for different applications.

Petra APX series offers state of the are low sound, reliability, high energy efficiency, and small physical footprint chillers.

Petra APX chillers are equipped with unsurpassed features including a microprocessor controller to manage the unit`s performance for optimum efficiency at both full load and part load values.

Standard Features

-Welded structural C-channel base painted with mono component catalyzed primer sprayed paint.

-The base is equipped with welded brackets for heavy-duty lifting lugs.

-Structural members are made from gauge 15 [1.8 mm (0.07 inch)] tubular cross members that are semi-welded with stainless steel fasteners. All members & panels (side & roof) are painted with oven-baked polyester electrostatic powder paint.

-High-performance semi-hermetic reciprocating compressor.

-Copper tubes aluminum fins air cooled condenser coils.

-All coils are air pressure tested by dry air up to 2,900 kPa (420 Psi) underwater. They also undergo dry cleaning after manufacturing for optimum system cleanness.

-Condenser fans of the external rotor type with many attractive features such as space-saving, compact design, optimum cooling, full speed controllability, and low starting currents.

-High-efficiency direct expansion (DX) shell and tube type coolers with inner grooved tubes to optimize the cooler’s efficiency.

-Coolers are tested and stamped for a refrigerant side design pressure of 1,000 kPa (145 Psi) and a maximum water side working pressure of 1,500 kPa (220 Psi).

-Independent refrigeration circuit per compressor.

-Liquid, discharge, and suction pipes are all hard copper pipes. They are formed using automated CNC pipe bending machines to minimize pipe-brazed joints which in turn increases system reliability.

-Epoxy Paint for all exposed copper piping systems of the refrigeration circuit.

-Components of each refrigeration circuit include a thermostatic expansion valve, liquid line solenoid valve, liquid line shut-off valve, liquid line moisture indicator sight glass, high safety pressure switch, and filter drier.

-Compressor electronic current monitor and overload protection through the controller.

-Control voltage is 220-240V for all components.

-Microprocessor controller for full management of chiller operation and safety circuits.

-NEMA 3X with IP54 minimum enclosure standard electrical panel. Two separate panels, one for power & the other for control.