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922178 Nordyne 230v3ph 46800bturR407C AC Compressor

922178 Nordyne 230v3ph 46800bturR407C AC Compressor

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922178 Nordyne 230v3ph 46800bturR407C AC Compressor

Must be shipped via freight truck 

Description

The 922178 is a genuine OEM hermetic reciprocating compressor designed for 230 VAC, three-phase air-conditioning applications using R-407C refrigerant. It delivers approximately 46,800 BTU/h (≈3.9 ton) of cooling capacity and features built-in thermal overload protection and anti-vibration mounting pads for quiet, reliable operation.


Key Features

  • Part Number: 922178

  • Capacity: 46,800 BTU/h (≈3.9 ton)

  • Voltage: 230 VAC, 3-phase, 50/60 Hz

  • Refrigerant: R-407C

  • Hermetic reciprocating design

  • Integrated thermal overload protector

  • Anti-vibration mounting pads


Compatibility

This compressor fits Nordyne and Nordyne-private-label split-system condensing units—also sold under Maytag, Miller, Broan, Frigidaire, Gibson, and Intertherm brands—that require a 230 VAC three-phase compressor charged with R-407C and rated near 46,800 BTU/h.


Installation & Service Tips

  1. Power Down and Evacuate

    • Fully de-energize the outdoor unit before service.

    • Evacuate the system to ≤ 500 microns to ensure a moisture-free vacuum.

  2. Mounting Alignment

    • Align vibration-isolation pads with the OEM bracket; replace pads if deteriorated.

    • Torque suction and discharge flare nuts to 10–15 ft·lb to prevent leaks.

  3. Filter Drier & Sight Glass

    • Install a new liquid-line filter drier downstream of the compressor.

    • Use a sight glass with moisture indicator to monitor system charge.

  4. Charging & Performance Check

    • Charge with R-407C according to manufacturer superheat/subcooling specs.

    • Verify amperage draw against nameplate values and listen for smooth operation.


Cross-Reference & Resources

  • OEM Replacement: original 922178 → 922178 (revised)

  • Common Copeland equivalent: ZR48K5E-TFD-? series (confirm with data plate)

  • Service Manual Sections: compressor break-in, leak-check procedures, vibration isolation

  • Printable mounting-orientation diagram and charging-record template available on request