Tecumseh AJ 4517 P-FZ (Old Code: CAJ 4517 Z) 1.3 Hp R-404A Refrigeration Compressor

The CAJ 4517 Z model from the French-origin Tecumseh compressor family, known for its longevity in the commercial refrigeration industry, is now produced under the stock code AJ 4517 P-FZ following the brand's global catalogue update. This code change is only a naming procedure; the housing dimensions, valved connection centres and mechanical power of the unit remain completely the same. You can install this new-code compressor as a "drop-in" replacement in the place where you removed your old motor, without any modification.

1.3 Hp Wide Operating Range and High Cooling Capacity

Designed for commercial refrigeration systems with medium and high evaporating temperatures (MBP/HBP), such as dairy cabinets, display counters and cold rooms, this compressor stands out with its 1.3 HP power. Delivering superior performance across a wide operating range (evaporating) between -20°C and +15°C, this 25.95 cm³ motor produces 1929 Watt (approximately 6,580 BTU/h) cooling capacity at -10°C evaporating temperature, bringing the space to the target temperature quickly. The powerful CSR (Capacitor Start and Run) type motor design ensures that the compressor starts with high torque even during drops in mains voltage.

Key Technical Features and Capacity Data

The technical values of the product, whose rotalock valve design makes service and refrigerant recovery operations safe, are as follows for our technicians in the field:

• New Model Code: Tecumseh AJ 4517 P-FZ
• Old (Known) Model Code: CAJ 4517 Z
• Motor Power: 1.3 HP
• Refrigerant: R-404A (fully compatible with R507A)
• Operating Voltage: 220-240V / 50Hz / Single Phase
• Motor Type: CSR (High starting torque)
• Operating Temperature Range: -20°C to +15°C evaporating (MBP/HBP applications)
• Cooling Capacity: 1929 W (at -10°C evaporating / CECOMAF conditions)
• Displacement (Cylinder Volume): 25.95 cm³
• Connection Type: Valved (Rotalock)
• Line Sizes: Suction Line 5/8" - Discharge Line 3/8"
• Current Ratings: Maximum Operating Current 7.9 A - Starting Current (LRA) 42 A
• Oil Type and Quantity: POE (Polyolester) / 887 cm³
• Noise Level: 65 dB(A) at 1m (Ultra-quiet operating characteristic)
• Net Weight: 22 kg
• Origin: France

Installation and Service Note for Refrigeration Technicians in the Field

Technician Note: When you see AJ 4517 P-FZ on the new box, you have the exact original equivalent of the CAJ 4517 Z in your hands. Since the inrush (starting) current of the unit reaches a serious value of 42A, be sure to review the contacts and thermal settings of the contactors in the electrical panel. The 887 cm³ POE oil inside is very sensitive to atmospheric moisture; keep the suction and discharge valves of the compressor closed until your tube brazing work is finished. Always fit a new filter drier to the system and carry out a deep evacuation before charging the refrigerant. When connecting the 5/8" and 3/8" rotalock valves, a firm but gentle tightening, just enough to ensure the Teflon gaskets seal, is sufficient.