Indoor Air Cooled Chiller Packages

Berg industrial indoor air cooled refrigeration units have a choice of semi-hermetic refrigeration compressors, scroll refrigeration compressors or screw refrigeration compressors with a double pump tank mounted with the chiller module, plus the advantage of being able to reclaim waste heat. All Berg industrial refrigeration units are fully tested under actual load conditions before being shipped.

  • Features and Benefits
  • Technical Information
  • Layout Pictorial
Cooling system for a ship
Cooling system for a ship
Indoor Air Cooled Chiller Packages

The Berg air cooled package chillers are recommended for industrial applications with clean air, when heat reclaim is beneficial, and wherein an integrated pumping system is required. These units are part of Berg’s complete line of packaged industrial chillers. They are self-contained and include both a liquid chiller and a double pump tank system for a complete industrial cooling solution. This chiller comes pre-piped and pre-wired, and requires a minimum of installation effort and only occupies a small amount of floor space.

Highlights

  • Compressor (HP) 20 – 120 or more
  • Cooling Capacity (Refrigeration tons) 15 to 300 or more
  • Heating (BTU/hr) 270k – 846k

Compressor Options Semi Hermetic Reciprocating Compressor (AS)

  • 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

Open Type Compressor (AO)

  • 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

Scroll Compressor (AZ)

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

Screw Compressor (AQ)

  • 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

Stainless Steel Tank

  • Baffled Stainless Steel type 304 Reservoir, 11 gauge
  • Reinforcement bands
  • Removable stainless steel cover
  • Overflow connection
  • Bottom drain connection with shut‑off valve
  • Automatic float operated water make‑up valve
  • Thermometer with well
  • Spare well opening
  • Closed cell flexible insulation nominal ½” thick applied to bottom and sides of tank

Evaporator

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

Centrifugal Pump Assembly

  • Evaporator pumps circulate water from the hot well to the chiller and back to the cold well.  This provides a constant flow and pressure for stable operation, maximum efficiency, and safety.
  • Process pumps circulate water from the cold well to the process and back to hot well.  This flow may fluctuate without affecting the flow through the chiller.
  • Optional combined standby pump, complete with valved header assembly is capable of acting as either the chiller or process pump if necessary to prevent any unnecessary shut-downs due to an operating pump fault.

Pump assembly includes:

  • Close coupled TEFC motor
  • Non-overloading impeller
  • Cast iron volute
  • Brass shaft sleeve
  • Mechanical seal
  • Suction shut‑off valve
  • Discharge flow/shut‑off valve
  • Discharge check valve
  • Discharge pressure gauge

Reservoir Mixing Tank and Frame

  • Frame manufactured from heavy gauge structured steel tube with welded construction.
  • Tank models manufactured from heavy gauge stainless steel.
  • Tank cover manufactured from stainless steel and supplied in sections for ease of removal and access (covers are optional).
  • All tanks have baffled compartments if required.
  • Make-up float valve.
  • Tanks are structurally supported around top and sides as required.

Air Cooled Outdoor or Indoor Remote Condenser or Blower

  • Heavy construction while maintaining maximum heat transfer
  • Seamless copper tubing
  • Aluminum fins
  • Permanent metal-to-metal contact
  • Dynamically balanced centrifugal blowers
  • Blowers are belt-driven by an open, drip-proof motor

Electrical

  • 460 / 575 / 230 / 380 Volts | 60 / 50 Hz
  • 120 / 240 Volt single phase control voltage
  • Microprocessor controller
  • Operating and fail lights
  • UL or CSA approved components

Central Control Electrical Panel

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

  • HMI (Human Interface Device) touchscreens
  • PLC (Programmable 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.

Safety Controls

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

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

Custom Engineered

Berg engineers work with you to create a custom-built indoor air cooled chiller that will meet your economic and functional needs.

24/7 Technical & Service Support

Berg is available to you 24/7 for technical and service support.

Energy Efficient

All of Berg’s air cooled chiller come equipped with high system efficiency features.