Factory Direct Sales Copeland ZR61KC-TFD ZR61KCE-TFD-522 ZR68KC-TFD ZR72KCE-TFD ZR81KC-TFD compressor

The Medium Commercial Series is Copeland's ZR series commercial scroll compressor product line designed for 4.75 HP to 7 HP applications. It covers four model grades: ZR61KC, ZR68KC, ZR72KCE, and ZR81KC. All models feature three-phase 380-420V/50Hz power supply, making them suitable for medium commercial air conditioning, office building central air conditioning, precision air conditioning systems, and chiller units.

The ZR61KC series is the standard 5.1 HP workhorse of the Medium Commercial Series, delivering a cooling capacity of 14,000–14,600 W with a COP of 3.14. It features a displacement of 82.6 cc/Rev., 1.95 L oil charge, 36.1 kg net weight, 65.5 A locked rotor current (LRA), and 71 dBA noise level. 5.1 HP is a core power specification for medium commercial air conditioning, and the ZR61KC series has become one of the most in-demand models in the market thanks to this precise positioning. For 5.1 HP class applications such as medium commercial AC, rooftop units, unitary systems, chillers, and precision AC, this series is the preferred power source for OEMs and service contractors alike, thanks to its broad market compatibility and genuine Copeland quality. The ZR61KC-TFD and ZR61KCE-TFD-522 share identical core performance parameters; the main difference lies in piping connections and accessory configurations (suffix -420 vs -522). Model selection should be based on the original equipment's interface specifications.

The ZR68KC-TFD is the 5.75 HP model of the Medium Commercial Series, with a cooling capacity of 16,400–16,900 W, input power of 4,960–4,970 W, and current draw of 8.6 A. It features a displacement of 93.0 cc/Rev., 1.77 L oil charge, and 39.0 kg net weight. Compared to the ZR61KC, displacement increases by approximately 12.6%, further boosting cooling capability. For large commercial AC and high-load refrigeration equipment requiring greater capacity than 5.1 HP, the ZR68KC-TFD provides ample cooling reserve while maintaining the compact and lightweight design philosophy of the Medium Commercial Series.

The ZR72KCE-TFD is the 6 HP high-capacity model of the Medium Commercial Series, delivering a cooling capacity of 14,350–17,400 W, input power of 5,150–5,270 W, current of 9.1 A, and COP of 3.22–3.25. It features a displacement of 98.1 cc/Rev., 1.77 L oil charge, 38.6 kg net weight, 74.0 A LRA, and 72 dBA noise. Its COP of 3.22–3.25 stands out for energy efficiency in the 6 HP class, and it is compatible with multiple refrigerants including R134a, R407C, and R22. For 6 HP class applications such as large commercial AC, chillers, and precision AC, the ZR72KCE-TFD is the preferred choice for commercial projects pursuing operational economy, thanks to its high efficiency ratio and broad refrigerant compatibility.

The ZR81KC-TFD is the 7 HP high-efficiency model of the Medium Commercial Series, with a cooling capacity of 19,690–19,900 W (68,000 Btu/h), input power of 5,810–5,830 W, current of 10.5 A, and a leading COP of 3.43—the highest energy efficiency in the Medium Commercial Series. It features a displacement of 107.8 cc/Rev., 1.77 L oil charge, 101.0 kg net weight, and 72 dBA noise. A COP of 3.43 means it produces 3.43 kW of cooling for every 1 kW of electricity consumed. For 7 HP class applications such as medium commercial AC, office building central AC, and precision AC systems, the ZR81KC-TFD delivers high efficiency and broad applicability as the preferred power source for medium commercial projects. This model supports dual and triple parallel operation for flexible system capacity expansion.

Selection Tip: For 5.1 HP, choose ZR61KC (market mainstream); for 5.75 HP, choose ZR68KC (high-capacity upgrade); for 6 HP, choose ZR72KCE (multi-refrigerant compatible); for 7 HP, choose ZR81KC (efficiency benchmark).

Q1: What is the difference between ZR61KC-TFD and ZR61KCE-TFD-522?

A: Both share the same nominal HP (5.1 HP), cooling capacity (14,000–14,600 W), and COP of 3.14. Their core performance parameters are identical; the main difference lies in piping connections and accessory configurations (suffix -420 vs -522). Please select the appropriate suffix based on the original equipment's interface specifications.

A: The ZR72KCE-TFD is compatible with multiple refrigerants including R134a, R407C, and R22. It features 6 HP nominal power, 98.1 cc/Rev. displacement, 14,350–17,400 W cooling capacity, and COP of 3.22–3.25.

A: The ZR81KC-TFD has a COP of 3.43 W/W, the highest energy efficiency in the Medium Commercial Series (4.75–7 HP). It delivers 19,900 W cooling capacity with 5,810 W input power.

A: Both have similar power ratings but different positioning. The ZR68KC-TFD is 5.75 HP with 93.0 cc/Rev. displacement, 16,400–16,900 W cooling capacity, 1.77 L oil charge, and 39.0 kg net weight. The ZR72KCE-TFD is 6 HP with 98.1 cc/Rev. displacement, 14,350–17,400 W cooling capacity, COP of 3.22–3.25, and multi-refrigerant compatibility. The ZR72KCE offers superior advantages in energy efficiency and refrigerant compatibility.

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