Tecumseh AJ 2428 P - FZ (Old Code: CAJ 2428 Z) 1/2+ Hp R-404A Refrigeration Compressor

Tecumseh's classic French-made CAJ 2428 Z model, legendary for its durability in industrial and commercial refrigeration systems, is now in the field under its updated new code AJ 2428 P - FZ! The new designation continues with exactly the same chassis dimensions, the same connection points and the same familiar superior performance values. Designed for deep-freeze rooms, commercial refrigerators and supermarket display sections, this compressor stands up to harsh operating conditions.

Powerful LBP Performance and CSR Motor Technology

Running on a 1/2+ HP (approx. 0.37 kW) motor, this compressor is fully compatible with R404A and R507 refrigerants. Thanks to its hermetic reciprocating design and the 1246 W (approx. 4,250 BTU/h) cooling capacity it produces at -10°C evaporating temperature, it removes heat from the space quickly and steadily. Its CSR (Capacitor Start, Capacitor Run) motor technology enables strong starts without straining the grid and prevents stalling even at moments of high pressure.

Key Technical Specifications and Electrical Data

With its valved design that makes system work easier, the product's detailed data for field service technicians are as follows:

• Brand / New Model Code: Tecumseh / AJ 2428 P - FZ
• Old (Familiar) Model Code: CAJ 2428 Z
• Power: 1/2+ HP (Approx. 0.37 kW)
• Refrigerant: R404A (fully compatible with R507)
• Operating Voltage: 220-240V / 50Hz / Single Phase
• Motor Type: CSR (Capacitor Start, Capacitor Run)
• Cooling Capacity: 1246 W / 4,250 BTU/h (at -10°C Evaporating, 40°C Condensing)
• Current Values: 3.3A RLA (Rated), 22A LRA (Starting), 5.1A MCC (Max Continuous)
• Displacement (Cylinder Volume): 15.2 cm³
• Connection Type: Rotalock Valve (valved type)
• Oil Type and Quantity: Polyolester (POE) / 887 cm³
• Weight and Size: 23 kg / 271 mm Height
• Origin: France

Installation and Troubleshooting Note for Field Technicians

Technician's Note: The old code "CAJ 2428 Z" may be engraved in your memory, but when you see "AJ 2428 P - FZ" on the new boxes, do not hesitate; with exactly the same power, the same valve inlets and the same base mounting dimensions, it is the one-to-one equivalent of the unit you have. When connecting the compressor to the system, remember that the 887 cm³ of POE oil is very sensitive to moisture (hygroscopic). Evacuate the system thoroughly and be sure to replace the filter drier of the old system. After checking that the teflon gaskets on the rotalock valves are not deformed, you can ensure tightness by tightening the bolts without crushing them.