Indoor Refrigeration Process Chiller Unit with Water Cooled Condenser ( Water Cooled Package )

These modules are used where:

• Cooling tower water is available
• Integral pumping is required
• The inside air is either corrosive, extremely dusty or hot
• Supplemental heating is of no benefit
• The plant is air conditioned.

     These self-contained water-cooled units include both a water chiller and a double pump tank system for a complete industrial cooling solution.

     This unit comes pre-piped and pre-wired and requires a minimum of installation effort and occupies a small amount of floor space.

     BERG has a long history of delivering high quality and reliable chiller packages for industry and commercial purposes.

     Working with BERG allows you to benefit from our extensive experience acquired from hundreds of installations in all type of conditions all over the world.

     We will be glad to assist you with frequently asked questions:

Highlights

• Compressor (HP) 20 - 120 or More!
• Cooling Capacity ( Refrigeration tons ) 15 to 300 or More!

( Multi-Cylinder, Semi Hermetic Compressor WS )

• Forced feed oil lubrication system Discharge and suction service valves
• Spring mounted to chiller main frame
• Suction, gas-cooled motor

( Multi-Cylinder, Direct Drive Compressor WO )

• Forced feed oil lubrication system
• Discharge service valve
• Solid mounted to chiller main frame
• NEMA approved open drip-proof motor

( Screw Compressor WZ )

• Discharge and suction service valves
• Solid mounted to chiller main frame

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

Safety Controls

• Freeze-up controls
• High and low refrigerant pressure controls
• Compressor motor overload protection
• Tank low-level cutout (glycol units)
• Oil pressure safety control
• Refrigerant pressure relief valve

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.

Process Chiller Refrigeration Basic Cycle

    As the heated process fluid passes over the evaporator some of the heat contained in the fluid(process chillers use water for the medium instead of air) is absorbed into it.

    The refrigerant inside the evaporator coil, originating from the condenser, has been metered causing a pressure drop of the refrigerant.

    The process of the metering of the refrigerant and resulting pressure drop causes the temperature of the refrigerant to drop.

    This causes the evaporator to be cooler than the air. As more warmer air passes over the evaporator coil the heat from the process fluid is absorbed into the coil and refrigerant, which is partially a liquid.

    This heat transfer, from the process fluid, to the coils, to the refrigerant, causes the refrigerant to boil and turn into a vapor. The vapor leaves the evaporator coil and is pulled towards the compressor.

    The vapor enters the compressor where it is compressed. This compression process raises the temperature and pressure of the refrigerant where it is discharged into the condenser coils.

    Again using water being pulled through the coils, another heat exchange process occurs. This time the heat picked up from the evaporator coils is rejected to the water.

    As the temperature of the refrigerant drops it once again becomes a liquid and is pumped back towards the metering device usually located near the evaporator coils where it will begin the process of absorbing heat from the evaporator all over again.