The Emerson Copeland ZRD72KCE-TFD-433 is an industry-leading hermetic digital scroll compressor engineered for applications demanding tight temperature control and high energy efficiency. By utilizing compliance scroll technology alongside digital modulation, this compressor offers premium reliability and continuous capacity adjustment for VRF systems, process chillers, and commercial rooftop units.
Comprehensive Technical Specifications:
Model Designation: ZRD72KCE-TFD-433
Product Line: Copeland Scroll Digital™
Nominal Horsepower: 6.0 HP
Refrigerant Compatibility: R407C (Also compatible with certain R22 or alternative HFC blend systems depending on system configuration)
Electrical Configuration: 380-420V / 3-Phase / 50Hz & 460V / 3-Phase / 60Hz
Cooling Capacity (50Hz): 59,500 BTU/h / 17.4 kW
Cooling Capacity (60Hz): 70,500 BTU/h / 20.7 kW
Displacement: 17.1 m³/h (50Hz) / 20.6 m³/h (60Hz)
Lubricant Type: Polyolester (POE) Oil
Initial Oil Charge: 1.89 Liters (64 oz)
Suction Connection Size: 7/8" Stub Out (Sweat / ODF)
Discharge Connection Size: 1/2" Stub Out (Sweat / ODF)
Modulation Range: 10% to 100% (Continuous)
Advanced Features & System Benefits:
Precision Temperature & Humidity Regulation: The continuous step-less digital modulation holds ambient temperatures within ±0.5°C, effectively eliminating typical thermostat cycles and maximizing comfort.
Outstanding Seasonal Energy Efficiency (CSPF/SEER): Operates efficiently at part-load conditions, significantly reducing power grid stress and operational energy bills.
Superior Liquid Handling Capabilities: Patented axial and radial compliance engineering allows the scroll flanks to separate, providing built-in protection against occasional liquid slugging.
Integrated Motor Safeguards: Equipped with an internal thermal overload protection break to prevent field burnouts from single-phasing or overcurrent.


FAQ
A: Standard compressors (ZR) only operate at 100% capacity (on or off). The Digital Scroll (ZRD) uses a unique unloading mechanism that allows continuous, stepless capacity modulation from 10% to 100%. This provides precise temperature control (\(\pm 0.5^{\circ }\text{C}\)), superior dehumidification, and massive energy savings under partial loads.
A: It is specifically engineered and factory-optimized for R407C refrigerant. Because it comes pre-charged with Polyolester (POE) oil, it can also be retrofitted for other HFC blends, provided the system expansion valves and safety controls are properly matched.
A: The code breaks down into specific factory configurations:
TFD: Indicates the electrical rating, which is 380-420V / 3-Phase / 50Hz and 460V / 3-Phase / 60Hz.
433: Represents the bill of materials (BOM), designating stub-out (sweat/ODF) solder connections and standard industrial single-pack framing.
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