D Series-Single, Dual and Multiple Compressor Arrangements

Product Overview

Century Refrigeration’s D Series condensing units are specifically designed for commercial and industrial duty refrigeration applications. These units are designed to operate in adverse conditions and meet the needs of the customer with minimal changes to the basic design. These units are designed to operate in high and low ambient conditions. High ambient and high altitudes are not a problem and can be easily addressed to meet your needs. The D Series units come with the components mounted and wired to reduce work in the field before installation. Any options added to the basic package are mounted and wired as required, also reducing field labor. The D Series condensing units have vertical air flow with updraft, high velocity fans.

The multiple circuiting option available on the D Series is designed to meet the demands of multiple load applications required for commercial and industrial refrigeration. These multiple compressor units bridge the gap between individual systems and large, multiple compressor rack systems for the warehouse industry. The D Series allows the compressor rack to be removed, freeing up valuable floor space in the facility.

Product Literature

Product Details


    • Copeland compressors
    • Fully assembled units
    • Direct drive condenser fans
    • Liquid receivers with relief valves
    • Receiver inlet and outlet valves
    • High pressure safeties
    • Low pressure operating controls
    • Crankcase heaters
    • Fan motor contactors
    • Vibration isolation under compressors
    • Separate sub-cooling circuits (for increased efficiency)
    • Compressor overload protection
    • Fan motor overload protection
    • Lift off access panels
    • NEMA 3R weatherproof electrical panels
    • Prewired controls
    • Hinged control panel access
    • Compressor service valves
    • Discharge vibrasorber
    • Oil failure controls
    • Run/pumpdown switches

    • Hot gas discharge muffler
    • Hot gas bypass
    • Liquid line drier & sight glass (replaceable core available)
    • Liquid line solenoid (shipped loose and manual lift stem options available)
    • Oil filled gauges with manual shut off valves
    • Oil separator
    • Three-valve bypass (liquid drier)
    • A20 flood control with receivers (for ambient temperatures at or above +20°F)
    • B20 flood control with receivers (for ambient temperatures below +20°F)
    • Receiver with bull’s eye sight glass
    • Receiver insulation & heat tape
    • Suction accumulator
    • Suction accumulator with heat exchanger
    • Suction filter (replaceable core available)
    • 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
    • Alarm circuit with horn
    • Fused defrost heater contactor
    • Fused evaporator fan contactor
    • Defrost time clock
    • Thermostat (shipped loose)
    • Adjustable guaranteed off timer (GOT)
    • Off/pumpdown/run switch
    • Electrical door interlock
    • Indicator lights
    • Elapsed time meter
    • Convenience outlet (115v /15amp with transformer)
    • Painted cabinet (enamel)
    • Acrylic coated fin coil

    • Ultra case coil construction
    • Corrosion resistant fin and coil coatings: Electrofin, Heresite, and Acrycoat fin stock
    • Hazardous-duty area 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
    • -40°F 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
    • Custom paint colors
    • Circuit breakers in lieu of fuses
    • Oversized condensers
    • 850 RPM motors for certain units
    • Convertible equipment: cooler/freezer

    • High Temperature Applications (-10°F to +45°F suction temperature)
      • 21,004 to 1,475,864 BTUH
    • Low Temperature Applications (-40°F to 0°F suction temperature
      • 7,308 to 579,667 BTUH

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