Condensing Units - D Series

Century logo

 

 

 

 

 

 

Our "D & DD" condensing units are specifically designed commercial and industrial refrigeration duty applications. These units are designed to operate in adverse conditions and meet the needs of the customer with minimal changes to the basic design.

 

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 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 such 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.

 

These units are designed to operate in high and low ambient conditions.  High ambient and high altitudes are not a problem and can be addressed with minimal changes to the basic design to meet your needs.  These units come with the components mounted and wired to reduce field installation costs and additional work before installation.  Any options to the basic package are mounted and wired as required reducing field labor.  The condensing units have vertical air flow with updraft high velocity fans.

D series img

Brochure

Click on Cover to download brochure

D Brochure
  • Standard Features
  • Available Options
  • Capacity Ranges
  • Unique Capabilities

Standard Features

  • Copeland Compressor
  • Fully Assembled Unit
  • Direct Drive Condenser Fans
  • Liquid Receiver with Relief Valve (Sized for 80% full)
  • Receiver Inlet and Outlet Valves
  • High Pressure Safety
  • Low Pressure Operating Control
  • Crankcase Heater
  • Fan Motor Contractor
  • Vibration Isolation Under Compressor
  • Separate Sub-Cooling Circuit (For increased efficiency)
  • Compressor Overload Protection
  • Fan Motor Overload Protection
  • Lift Off Access Panels
  • NEMA 3R Weatherproof Electrical Panel
  • Prewired Controls
  • Hinged Control Panel Access
  • Compressor Service Valves
  • Discharge Vibrasorber
  • Oil Failure Control
  • Run/Pumpdown Switch

Available Options

  • Hot Gas Discharge Muffler
  • Hot Gas Bypass
  • Liquid Line Drier & Sight Glass
  • Liquid Line Drier (Replaceable Core) & Sight Glass
  • Liquid Line Solenoid
  • Liquid Line Solenoid (Shipped Loose)
  • Liquid Line Solenoid with Manual Lift Stem
  • Oil Filled Gauges with Manual Shut Off Valves
  • Oil Separator
  • 3 Valve Bypass (Liquid Drier)
  • A20 Flood Control with Receivers (Ambient Temperatures at or above +20°F)
  • B20 Flood Control with Receivers (Ambient Temperatures below +20°F)
  • Receiver With Bulls Eye Sight Glass
  • Receiver Insulation & Heat Tape
  • Suction Accumulator
  • Suction Accumulator with Heat Exchanger
  • Suction Filter
  • Suction Filter with Replaceable Core
  • Suction Vibrasorber – Mounted
  • Control Circuit Transformer
  • Fan Cycle (Ambient Temperatures at or above +20°F)
  • Fan Cycle 0
  • Unit Circuit Breaker
  • Unit Fused Disconnect
  • Compressor Head Cooling Fan
  • Cylinder Unloading on Most Compressors
  • Unit Phase Failure Monitor
  • Sentronic Oil Control
  • Alarm Circuit with Horn
  • Fused Defrost Heater Contactor
  • Fused Evaporator Fan Contractor
  • Defrost Time Clock
  • Thermostat - Ship Loose
  • Adjustable Guaranteed Off Timer (GOT)
  • Off/Pumpdown/Run Switch
  • Electrical Door Interlock
  • Indicator Lights
  • Elapsed Time Meter
  • Convenience Outlet (115v / 15amp / with transformer)

 

Capacity Ranges

High Temperature Ranges

  • -10° to 45° Suction Temperature
  • 21,004 to 1,666,727 BTUH

 

Low Temperature Ranges

  • -40° to 0° Suction Temperature
  • 7,308 to 647,537 BTUH

 

 

Unique Capabilities

  • Ultra Case Coil Construction
  • Corrosion Resistant Fin and Coil Coatings : ElectroFin®, Heresite, Acrycoat Fin Stock
  • Hazardous Duty Area Unit Applications
  • Stainless Steel Cabinetry Design
  • ECM Motor Options
  • Two Stage Condensing Unit Applications
  • Water Cooled Condensing Unit Applications
  • High Efficiency Condenser Fan Motors
  • VFD (Variable Frequency Drive) Condenser Fan Option
  • Special Fan Selections for Acoustic Applications
  • Evaporative Cooled Applications
  • -50°to +60°F Room Applications
  • Parallel Compressor Units to Reduce Field Piping
  • Extended Leg Height for Ease of Service
  • Compressor Sound Wraps
  • Left Hand and Right Hand Control Panel Locations
  • Piping Connections to Location of Choice
  • Indoor Condensing Units with Centrifugal Fans
  • DDC Controls
  • Electronic Expansion Valves
  • Custom Paint Colors
  • Circuit Breakers in Lieu of Fuses
  • Oversized Condensers
  • 850 RPM Motors For Certain Units
  • Convertible Equipment Cooler/Freezer

 

Back to top