Remote Air Cooled Chillers - Berg Chilling Systems Inc.

Remote Air Cooled Chillers

Air cooled remote chillers are used when the air inside a plant is either corrosive, extremely dusty, hot, where supplemental heating is of no benefit, or where the plant is air-conditioned.

Features and Benefits
Technical Information
Layout Pictorial and Specifications

Remote Air Cooled Chillers

Remote air cooled industrial process chillers consist of an inside chiller unit and an air cooled condenser for remote mounting. Berg’s rugged industrial process chillers are manufactured and factory tested under load conditions to ensure they stand the test of time. Our custom engineered industrial chilling solutions for your unique application are developed for quiet operation, high efficiency and maximum return on investment. At Berg Chilling Systems Inc, we are proud of our air cooled industrial refrigeration units, and our engineering and design difference.

Capacity

Compressor (HP) 20 or more
Cooling Capacity (Refrigeration tons) 15 or more

Compressor Options Semi Hermetic Reciprocating Compressor (ASR)

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 (AOR)

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 (AZR)

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

Screw Compressor (AQR)

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

Frame

Frame Manufactured from heavy gauge structured steel tube with welded construction.

Chiller Vessel

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

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

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

Safety Controls

All Berg industrial chillers are 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

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.

Optional Stainless Steel Tank & Centrifugal Pump Assembly

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

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. The pump assembly includes: