Copeland ZF18K4E-TFD-961 Compressor

The Copeland ZF18K4E-TFD-961 is a high-efficiency scroll compressor engineered specifically for low-temperature refrigeration applications. Operating at 460V, 3-phase power, this unit delivers a nominal capacity of 44,100 BTU/hr at standard refrigeration rating conditions. It is optimized for use with R404A, R507, and R407A/C/F refrigerants, making it a versatile choice for commercial walk-in freezers and cold storage systems. This model features a displacement of 5.9 cubic inches per revolution and utilizes Polyolester (POE) oil to ensure consistent lubrication and internal component longevity. The ZF series design incorporates axial and radial compliance, allowing the scroll members to separate in the presence of liquid refrigerant or debris, which significantly increases system reliability in demanding environments. The welded shell construction and internal motor protection make this a robust solution for contractors requiring a high-duty cycle HVACR replacement compressor.

• Broad Operating Envelope: Designed to maintain high efficiency across a wide range of low-temp suction and discharge pressures.
• Advanced Scroll Technology: Fewer moving parts than reciprocating models, resulting in lower vibration and higher volumetric efficiency.
• Multi-Refrigerant Compatibility: Field-ready for R404A and other common low-GWP HFC retrofits.
• Internal Protection: Equipped with internal line break motor protection to prevent winding damage from overcurrent or overheating.
• Compact Footprint: Standardized mounting facilitates quick drop-in replacement for existing refrigeration racks and condensing units.

What is the proper oil charge for the ZF18K4E-TFD-961?
This compressor is shipped with a standard charge of 60 ounces of POE oil. Always verify oil levels via the sight glass after the system has stabilized to ensure proper return.

Can this compressor be used with a VFD?
While scroll compressors are efficient, specific frequency ranges must be maintained to ensure proper lubrication; always consult the manufacturer's performance curves when applying external speed controls.

Does this unit require a crankcase heater?
For low-temperature applications where the compressor is exposed to ambient conditions below 32°F, a crankcase heater is highly recommended to prevent liquid migration during the off-cycle.

This item must ship via truck. Please contact us for freight quote.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.