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Tecumseh Refrigeration & Heat Exchange Piston HBP Compressors CAH4518A TAH4518A CAH4525A

Tecumseh Refrigeration & Heat Exchange Piston HBP Compressors CAH4518A TAH4518A CAH4525A

Name: Tecumseh Refrigeration & Heat Exchange Piston HBP Compressors CAH4518A TAH4518A CAH4525A
Brand: TECUMSEH
Rating: 5.0 (63 reviews)

"Taikang" specializes in the production of compressors. The compressor is the heart of the refrigeration system. It draws in low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it via motor-driven piston operation, and then discharges high-temperature, high-pressure refrigerant gas through the exhaust pipe, providing power for the refrigeration cycle. This enables the refrigeration cycle of compression → condensation → expansion → evaporation (heat absorption). Taikang compressors typically consist of a housing, motor, cylinder block, piston, control equipment (starter and thermal protector), and cooling system.

Model:
CAH4518A TAH4518A CAH4525A
Brand:
TECUMSEH

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Product Description

Tecumseh Compressor Product Description

Tecumseh compressors, a globally renowned brand in the refrigeration industry, are celebrated for their exceptional reliability, wide applicability, and top-tier technical performance. We are committed to providing efficient and stable core power solutions for commercial, industrial, and special refrigeration applications.

I. Core Features & Superior Advantages

1. Wide Voltage Adaptability, Undaunted by Poor Grid Conditions

Tecumseh compressors feature professional electrical design. Single-phase models operate stably within a wide voltage range of 180V to 240V, while three-phase models cover 340V to 440V. This design effectively handles grid fluctuations, making them particularly suitable for areas with underdeveloped power infrastructure. It fundamentally reduces the risk of compressor failure due to voltage instability, ensuring reliable 24/7 operation.

2. Proven by Global Market Validation, Stable and Reliable Performance

The products have undergone decades of practical application and market validation in diverse climatic conditions across China and Southeast Asia. Rigorous environmental testing has forged their exceptional stability and long service life, making them durable, industrial-grade products you can fully trust.

3. Comprehensive Model Range, Powerful Lineup, Precise Matching for Needs

Tecumseh offers a vast power range from 1/12 HP to 12 HP, covering ten major series and hundreds of specific models. Whether you need a compact compressor for a small commercial cooler or a high-power core for large freezing tunnels and industrial chillers, Tecumseh provides the perfect match, enjoying an excellent reputation especially in commercial refrigeration.

4. High Efficiency and Energy-Saving Technology, Optimizing Operating Costs

The core motor utilizes a high-efficiency, low-slip, large-volume Class F insulated motor design. This not only ensures insulation stability and operational safety under extreme conditions but also achieves the perfect balance of high cooling capacity and low power consumption, significantly reducing long-term electricity costs for users and meeting the stringent efficiency demands of modern refrigeration equipment.

5. Precision Mechanical Design for a Quiet Working Environment

Through precise dynamic balance design and high-quality manufacturing, Tecumseh compressors exhibit extremely low vibration and noise levels during operation. This enhances the end-user experience and provides an ideal solution for noise-sensitive environments.

II. Broad Application Areas

Tecumseh compressors are widely used in the following areas:

Freezing Equipment: Spiral freezers, tunnel freezers, plate freezers, etc.
Industrial Refrigeration: Process cooling in chemical industries, central air conditioning chillers, industrial process cooling systems.
Agricultural Refrigeration: Large cold storage warehouses, controlled atmosphere storage, agricultural product processing and preservation.
Commercial Refrigeration: Supermarket display cases, convenience store coolers, commercial ice cream machines, hotel kitchen cold storage, beverage coolers, etc.

III. Detailed Model Analysis and Comparison

Model	Key Characteristics	Displacement (cu.in/rev)	Primary Application Temp. Range	Approx. Cooling Capacity	Primary Application Scenarios
CAH4518A	Medium-Low Temp Standard	18	Medium-Low Temperature	Medium	Commercial cold rooms, freezers, refrigerated displays
TAH4518A	Medium-High Temperature	18	Medium-High Temperature	Medium (for high-temp apps)	Air conditioning, heat pumps, chillers
CAH4525A	Large Displacement, Med-Low Temp	25	Medium-Low Temperature	Large	Large commercial cold stores, freezing equipment, refrigerated containers

Detailed Descriptions:

CAH4518A

Positioning: A balanced, medium-capacity workhorse model for medium-low temperature applications within the series.
Features: Offers balanced performance and high reliability; one of the most common models in commercial refrigeration. Suitable for systems using common medium-low temp refrigerants like R22, R404A, R507.
Typical Applications: Walk-in coolers/freezers, supermarket backup cold storage, large upright freezers, ice cream storage cabinets.

TAH4518A

Positioning: Shares displacement with CAH4518A but is optimized for medium-high temperature conditions.
Features: Its internal design is better suited for the high evaporating and condensing temperatures typical of AC/heat pump applications. While displacement is the same, its cooling capacity and efficiency under high-temperature conditions outperform the CAH model.
Typical Applications: Commercial packaged AC units, rooftop units, heat pump systems, industrial chillers.

CAH4525A

Positioning: The high-capacity, medium-low temperature model in the series.
Features: Significantly increased cooling capacity due to higher displacement, suitable for larger spaces or faster pulldown requirements.
Typical Applications: Large food processing plants (tunnel freezers), distribution center cold storage, refrigerated transport containers.

IV. Summary and Selection Guide

Select by Temperature Requirement:

For freezing/cold storage (evap. temp typically -40°C to +5°C), choose models with the CAH prefix.
For air conditioning, heating, or chilled water (evap. temp typically >0°C), choose models with the TAH prefix. CAH and TAH models are generally not directly interchangeable, as this can lead to inefficiency or damage.

Select by Cooling Capacity Requirement:

For the same application temperature, the CAH4525A has a much higher capacity than the CAH4518A. The choice depends on room volume, insulation, product load, and target temperature.

Important Notes:

Precise Matching: When replacing a compressor, selection must be based strictly on the original equipment's technical parameters (capacity, voltage, refrigerant), not just the model series.
Professional Consultation: Before selection or replacement, strongly consult official Tecumseh technical documentation or a qualified refrigeration engineer for accurate matching information and performance data for specific refrigerants.
System Compatibility: Replacing a compressor with a larger displacement requires evaluation of the entire refrigeration system (condenser, evaporator, expansion device) for compatibility.

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