French Taikang Refrigeration Compressor AEZ Series-AEZ 3425Y AEZ4425Y AEZ 3430Y AEZ4430Y AE 3440Y

I. Series Overview

The AE / AEZ / CAE series consists of hermetically sealed reciprocating commercial refrigeration compressors from the French brand Tecumseh. They are widely used in medium and high-temperature commercial refrigeration applications. This series covers a power range from 1/5 HP to 3/7 HP, offering three major refrigerant versions: R134a (suffix Y), R404A/R507 (suffix Z), and R22 (suffix E). They serve as an ideal power source for small to medium-sized commercial refrigeration equipment.

• Common Characteristics: The entire series features a hermetically sealed reciprocating design, with the motor and pistons sealed within the same welded shell, effectively reducing leakage and simplifying on-site maintenance.

  
  

• Core Naming Rules:

  
  

• AEZ = Compressors for R134a (suffix Y) / R404A (suffix Z) / R22 (suffix E)

  
  

• AE = Partial R134a models (e.g., AE 3440Y) and R404A models (e.g., AE 3450Z)

  
  

• CAE = R404A/R507 compressors (e.g., CAE 4450Z)

  
  

• Y suffix = R134a refrigerant; Z suffix = R404A/R507 refrigerant; E suffix = R22 refrigerant

  
  

• Numerical code: The first two digits (34/44/94/45, etc.) represent the series; the last two digits (25/30/40/50, etc.) represent the specific model.

  
  

II. Comprehensive Parameter Comparison Table

(1) Y Series — R134a Refrigerant (Medium & High-Temp Applications)

(2) Z Series — R404A/R507 Refrigerant (Medium/High & Low-Temp Applications)

(3) E Series — R22 Refrigerant (Medium & High-Temp Applications)

III. Detailed Analysis of Model-Specific Advantages

(Detailed below by refrigerant type: Y Series R134a / Z Series R404A/R507 / E Series R22)

(1) Y Series — R134a Medium & High-Temperature Compressors

The Y series uses R134a refrigerant, positioned for High Back Pressure (HBP) medium-to-high temperature commercial refrigeration, with an evaporation temperature range of -15°C to +15°C. This series is mainly used in beverage coolers, small display cases, and medical refrigeration equipment running on R134a systems.

• AEZ 3425Y (1/4 HP) — Compact High Back Pressure Option

The AEZ 3425Y is an entry-level model in the Y series, compatible with R134a refrigerant, powered by 220-240V / Single-phase / 50Hz. It is suitable for HBP refrigeration systems. For micro-load refrigeration scenarios such as small beverage coolers, countertop display cases, and medical incubators, the AEZ 3425Y provides an economical and efficient solution with its compact structure and moderate power.

• AEZ 4425Y (1/5 HP) — Micro-Load Energy-Saving Option

• AEZ 3430Y (1/4 HP) — Standard R134a High Back Pressure Option

• AEZ 4430Y (1/4 HP) — Large Displacement High Back Pressure Option

• AE 3440Y (1/3 HP) — Maximum Power in the Y Series

For large commercial display cases and refrigeration equipment requiring 1/3 HP R134a cooling capacity, the AE 3440Y provides the strongest cooling capacity in the Y series with its maximum 12.00 cc displacement. The sound power level is approx. 52–58 dB(A), making it suitable for open commercial spaces like supermarkets and convenience stores where noise is a concern. Net weight: 11.3 kg.

(2) Z Series — R404A/R507 Medium/High & Low-Temperature Compressors

• AEZ 4440Z (1/3 HP) — Standard R404A Medium/High Back Pressure Option

• AEZ 9440Z (1/3 HP) — Large Displacement Low-Temperature Option

• AE 3450Z (3/7 HP) — Mainstream Medium Temperature Option

• CAE 4450Z (3/8 HP) — Classic R404A Medium/High Back Pressure Model

As a classic model in the Tecumseh AE family, the CAE 4450Z enjoys wide compatibility and a good reputation in the commercial refrigeration market. Its 3/8 HP rating and 8.85 cc displacement make it an ideal choice for equipment such as medium-sized cold rooms and commercial display cases.

(3) E Series — R22 Medium & High-Temperature Compressors

• AEZ 4425E (1/5 HP) — Entry-Level R22 Micro-Load Option

• AEZ 4430E (1/4 HP) — Versatile R22 Mainstream Option

• AEZ 4440E (1/3 HP) — High-Capacity R22 Option

• AEZ 9440E (1/3 HP) — Large Displacement R22 Option

• AE 3450E (3/7 HP) — Maximum Power in the E Series

IV. Series-Wide Common Advantages 

Features:

• Hermetically sealed reciprocating piston structure: Motor and pistons sealed in the same welded shell.

  
  

• Three major refrigerant compatibilities: Y series (R134a), Z series (R404A/R507), E series (R22).

  
  

• Single-phase 220-240V/50Hz power supply: Compatible with mainstream global commercial power.

  
  

• CSIR/RSIR motors: Provide reliable starting performance.

  
  

• Wide voltage design: Single-phase 180-240V, adapting to grid fluctuations in different regions.

  
  

• Compact octagonal body design: Saves installation space.

  
  

• Splash lubrication system: Ensures reliable oil supply under extreme operating conditions.

  
  

• PTC sensor motor temperature monitoring: Real-time protection of motor safety.

  
  

Advantages:

• The hermetically sealed structure offers excellent sealing, effectively reducing refrigerant leakage.

  
  

• Ultra-quiet operation: Night-time noise ≤ 42 dB, 40% lower than the national standard.

  
  

• High energy efficiency: Energy Efficiency Ratio (EER) of 3.8, 22% higher than the industry average.

  
  

• Stable operation across a wide temperature range: Adaptable to environments from -30°C to 55°C.

  
  

• IP55 dust and water resistance rating: Suitable for high-humidity and dusty environments.

  
  

• Core components: Swedish specialty steel pistons + precision bearings, ≥20,000 hours of continuous operation without performance degradation.

  
  

• Easy maintenance: Expanded maintenance space reduces maintenance time by 40%.

  
  

Benefits:

• Energy Saving and High Efficiency: High-efficiency motors reduce power consumption, saving users long-term operating costs.

  
  

• Quiet and Comfortable: Ultra-low noise operation is suitable for commercial spaces with noise requirements, such as supermarkets, convenience stores, restaurants, and laboratories.

  
  

• Flexible Selection: Three major refrigerants × complete power spectrum ensure the most suitable model for every project.

  
  

• Strong Adaptability: Wide voltage design + wide temperature range operation + IP55 protection adapt to various harsh working conditions.

  
  

V. Quick Selection Guide by Application Scenario

Quick Selection Steps:

1. Select refrigerant first: R134a → Y series; R404A/R507 → Z series; R22 → E series.

   
   

2. Determine power: 1/5 HP → 4425; 1/4 HP → 3425/3430/4430; 1/3 HP → 3440/4440/9440; 3/7 HP → 3450.

   
   

3. Determine scenario: Micro-load refrigeration → 4425; Standard display → 3430/4430; High capacity → 3440/4440; Low-temp freezing → 9440Z.

   
   

VI. Frequently Asked Questions (FAQ)

Q1: What is the difference between models starting with AE, AEZ, and CAE?

A: AE and AEZ are standard hermetically sealed reciprocating compressor series from Tecumseh, while CAE is a specific variant within the same series. The technical parameters of the three series are basically the same; the main differences lie in the historical evolution of model naming and specific configuration variations.

A: Y suffix = R134a refrigerant; Z suffix = R404A/R507 refrigerant; E suffix = R22 refrigerant. They use different refrigerants and different refrigeration oils (POE ester oil for R134a/R404A, mineral oil/alkylbenzene oil for R22), and are not interchangeable.

A: The AE/AEZ/CAE series is primarily positioned for Medium/High Temperature (HBP/MBP) applications. Typical evaporation temperature ranges: Y series is -15°C to +15°C; some Z series models (e.g., AEZ 9440Z) can cover -40°C to -12.2°C; E series covers -5°C to +12°C.

A: At +7.2°C evaporation, the cooling capacity is approx. 550–650 W. At -15°C evaporation, the cooling capacity is approx. 192 W.