Outdoor Air Cooled Chillers

  • Redundant Explosion Proof Dual Air Cooled Chiller Package with mezzanine.
  • Outdoor Air Cooled Chiller with Weatherproof Room
  • Outdoor Skid Mounted Air Cooled Chiller
  • Multiple Compressor Outdoor Air Cooled Package with control panel
  • Low Temperature Outdoor Air Cooled Package
  • Skid mounted dual circuit packaged outdoor chiller with system control panel.
  • Low Temperature Containerized Refrigeration Plant with upper level condenser on a concrete pad.

Outdoor Air Cooled Chillers

Berg industrial outdoor air cooled chillers are used to conserve plant floor space by enabling the cooling system to be placed outside, either beside the building or on the roof.

A fully weather-proof enclosure is used to protect the compressor and the NEMA 4 control panel enclosure. These industrial process cooling systems come pre-piped and prewired and require a minimum of installation effort. These industrial refrigeration units are used in conjunction with the Berg Pump Tank Assembly to create a Central Chilled Water System.

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Vapor-compression refrigeration is one of the many refrigeration cycles available for use. Used in commercial refrigerators, large-scale warehouses for storage of foods and meats and a host of other commercial and industrial services. Oil refineries, petrochemical and chemical processing plants, and natural gas processing plants are among the many types of industrial plants that often utilize large vapor-compression refrigeration systems.

The vapor-compression industrial refrigeration system uses a circulating liquid refrigerant as the medium which absorbs and removes heat from the space to be cooled and subsequently rejects that heat elsewhere.

All industrial process chilling systems have four components: a compressor, a condenser, an expansion valve (also called a throttle valve), and an evaporator. Circulating refrigerant enters the compressor in the thermodynamic state known as a saturated vapor and is compressed to a higher pressure, resulting in a higher temperature as well. The hot, compressed vapor is then in the thermodynamic state known as a superheated vapor and it is at temperature and pressure at which it can be condensed with typically available cooling water or cooling air. That hot vapor is routed through a condenser where it is cooled and condensed into a liquid by flowing through a coil or tubes with cool water or cool air flowing across the coil or tubes. This is where the circulating refrigerant rejects heat from the system and the rejected heat is carried away by the air.

To protect the chiller from inclement weather, the outdoor chiller may be installed in a pre-fabricated, insulated walk-in enclosure. Condenser and water piping to be heat traced for freeze protection.

Highlights

  • Compressor (HP) 20 – 160
  • Cooling Capacity (Refrigeration tons) 16 – 200

Compressor Options

Semi Hermetic Reciprocating Compressor (APS)

  • Suction gas cooled motor
  • Suction and discharge stop valve
  • Step capacity control
  • Crankcase heater with current sensing relay
  • Suction and discharge pressure transmitter
  • High pressure switch
  • Hot gas capacity control

Or

Open Type Compressor (APO)

  • Suction and discharge stop valve
  • Step capacity control
  • Drive coupling and C-flange adaptor/coupling guard
  • Suction and discharge pressure transmitter
  • Discharge high temperature cut-out
  • High pressure switch
  • Oil differential pressure switch
  • Crankcase heater with current relay
  • TEFC Motor certified for hazardous environments

Or

Scroll Compressor (APZ)

  • Suction gas cooled motor
  • Suction and discharge stop valve
  • High pressure switch
  • Crankcase heater with current sensing relay
  • Hot gas capacity control

Or

Screw Compressor (APQ)

  • Suction gas cooled motor
  • Suction and discharge stop valve
  • Slide valve capacity control
  • Integral oil separator with heater and current sensing relay
  • Crankcase heater with current sensing relay
  • Suction and discharge pressure transmitter
  • High pressure switch
  • Hot gas capacity control

Chiller Vessel

  • High efficiency shell and tube construction
  • Coded vessel Steel shell on water side
  • Copper tube with inner fin on refrigerant side

Liquid Receiver

  • Pressure operated for cycling with flooding controls

Air-Cooled Condenser

  • Heavy construction while maintaining maximum heat transfer
  • Seamless copper tubing Aluminum fins
  • Permanent metal-to-metal contact between tubing and fins

Evaporator

  • High efficiency copper brazed stainless steel plate construction
  • designed and constructed in accordance with ASME code

Or

  • High efficiency shell and tube construction
  • Carbon steel shell (water side)
  • Copper tube with inner fin (refrigerant side)
  • Vessel designed and constructed in accordance with ASME code

*other materials of are construction available upon request

Built-In Pump And Tank Assembly

  • Stainless steel divided holding tank with overflow drain and 1/2″ insulation

Safety Controls

  • Freeze-up controls
  • High and low refrigerant pressure controls
  • Compressor motor overload protection
  • Oil pressure safety control
  • Refrigerant pressure relief valve

Electrical

  • 460 / 575 / 230 / 380 Volts      60 / 50 Hz
  • 120 / 240 Volt single phase control voltage
  • Housed in a NEMA 4 enclosure
  • Operating and fail Lights
  • UL or CSA approved components

Central Control Electrical Panel

A custom electrical control panel allows one point hookup and may include:

  • HMI (Human Interface Device) touchscreens
  • PLC (Programable Logic Control)
  • SCADA (Supervisory Control And Data Acquisition ) communication systems
  • 24/7 alarm reporting to beepers or cell phones

All pump starters, fuses, disconnect, control voltage transformer, run and fail lights, are housed in a common NEMA rated panel.

Testing

  • Tested under load conditions prior to shipment
  • All safety controls are factory set and checked

Downloads

Berg Total Chilling Solutions Brochure

Berg Chilling Solutions Capabilities Overview

Product Description