Copeland ZF11K4E-PFV-931 Compressor

The Copeland ZF11K4E-PFV-931 Scroll Compressor is a 3.5 HP class Copeland scroll with a 208/230 V, single-phase, 60 Hz motor, built for low-temperature and medium-temperature commercial refrigeration. It belongs to Copeland's ZF*K4 scroll family for refrigeration, which Copeland describes as using liquid injection for improved reliability at low temperature, with the smooth scroll motion that gives low sound and vibration. The nameplate on this compressor reads Emerson Copeland Scroll Compressor, POE oil with a 47 oz factory charge, 208-230 V, 1 phase, 60 Hz, a run capacitor rating of 60 uF at 370 V, 109 A locked rotor current and thermal protection, and distributors list the compressor at 11,000 Btu/hr capacity. It is supplied with the 505-0819-00 DTC injection port cap, the 527-0116-00 vibration absorber grommet kit and the 998-0021-00 terminal flag kit.

Copeland's low-temperature ZF scroll literature makes injection cooling mandatory: for the smaller ZF K4E models, that means liquid injection through a discharge temperature control (DTC) valve, backed by high discharge temperature protection on every compressor. Copeland specifies a filter drier in the liquid line ahead of the DTC valve, liquid refrigerant present at the valve inlet before start-up, and replacing the DTC valve and the filter drier whenever the compressor is replaced. The ZF family is multi-refrigerant approved, and Copeland's low-temperature ZF documentation covers R-407A, R-407F, R-448A and R-449A, so confirm your refrigerant and operating envelope in Copeland's selection software before ordering. The same ZF11K4E compressor is also built in three-phase versions such as ZF11K4E-TF5-931 and ZF11K4E-TFD-931, which have a different motor, and in other sizes within the single-phase series, including ZF08K4E-PFV-931, ZF09K4E-PFV-931, ZF13K4E-PFV-931 and ZF15K4E-PFV-931.

Before condemning a scroll, confirm the supply voltage, test the run capacitor against the 60 uF, 370 V marking on the nameplate, and check motor winding resistance and insulation to ground. Look at the system for the usual causes of failure: liquid floodback, loss of injection cooling, high discharge temperature and moisture or contamination. If the old compressor burned out, test the oil for acid, flush as needed and install a new filter drier. Braze the suction and discharge stub connections with a nitrogen purge, mount the compressor on the supplied grommets, evacuate thoroughly, and charge by the system's specification. POE oil absorbs moisture quickly, so keep the system open to air only as long as necessary. Refrigerant work requires an EPA 608 certified technician.

Key Benefits

• 208/230 V Single-Phase Motor: Runs on single-phase 208-230 V, 60 Hz power, so it fits equipment that does not have a three-phase supply.
• Built for Low and Medium Temperature: Part of Copeland's ZF*K4 refrigeration scroll family, designed with liquid injection for reliable operation at low evaporating temperatures.
• Low Sound and Vibration: Scroll compression runs smoother than reciprocating designs, and the supplied 527-0116-00 grommet kit isolates the compressor from its base.
• Supplied With Installation Hardware: Comes with the 505-0819-00 DTC injection port cap, the 527-0116-00 grommet kit and the 998-0021-00 terminal flag kit for a complete swap.

Common Questions

• What is the difference between ZF11K4E-PFV-931 and ZF11K4E-TF5-931? The PFV model has a single-phase 208/230 V motor. ZF11K4E-TF5-931 and ZF11K4E-TFD-931 are three-phase versions, so they are not interchangeable without changing the power supply.
• Does it need a DTC valve? For low-temperature service, Copeland's ZF documentation requires injection cooling and discharge temperature protection. When the compressor is replaced, Copeland calls for the DTC valve and filter drier to be replaced at the same time.
• What oil does it use? The nameplate lists POE oil with a 47 oz factory charge. Use only the oil specified for the compressor and keep the system dry.

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.