Tecumseh AE1157E-679-J7 Compressor

The Tecumseh AE1157E-679-J7 is a commercial-grade low back pressure (LBP) compressor engineered for refrigeration systems utilizing R404A and R507 refrigerant. As the direct AE2415Z-AA1A replacement, this reciprocating unit delivers a nominal 1600 BTU capacity at standard LBP rating points, making it a critical component for reach-in coolers and specialized walk-in applications. Supporting a 115V single-phase power supply at 60Hz, this 3/8 HP compressor utilizes a High Start Torque (HST) motor with a Capacitor Start Induction Run (CSIR) configuration, ensuring reliable startups under the heavy loads common in busy commercial kitchens.

Built as a hermetic reciprocating compressor, the AE1157E-679-J7 features a standard 5/16-inch ODF suction line and a 1/4-inch ODF discharge line for straightforward HVAC refrigeration part integration. This updated model supersedes several legacy numbers, including AE-1157-E and AE1157E-679-A4, maintaining the physical footprint of the AE2 family while refining efficiency for modern low-temperature environments. For technicians servicing industrial or retail systems, this unit provides the consistent evaporative performance required for critical temperature maintenance.

• Optimized Compatibility: Direct drop-in replacement for AE2415Z-AA1A, AE-1157-E, and AE1157E-679-A4 models to minimize downtime.
• Enhanced Torque: High Start Torque (HST) motor design handles refrigerant pressure differentials, ideal for high-cycle commercial environments.
• Broad Refrigerant Support: Fully compatible with R404A, R507, and modern blends like R448A and R449A.
• Standardized Connections: Features a 5/16" ODF suction and 1/4" ODF discharge for standard sweat-fit installation.
• Thermal Management: Engineered for Low Back Pressure applications with an evaporating range typically between -40°F and 14°F.

• Is this an exact replacement for the AE2415Z-AA1A? Yes, the AE1157E-679-J7 is the designated updated version for that legacy model, offering identical mechanical specs and BTU output.
• What oil type does this compressor use? This unit is typically pre-charged with Polyolester (POE) oil, which is necessary for the proper lubrication of systems running R404A and R507.
• Does it require a specific starting capacitor? Since this is a CSIR (Capacitor Start Induction Run) unit with High Start Torque, it requires a compatible start capacitor and relay for reliable operation.

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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.