Home » Products » Refrigeration Compressor » TECUMSEH COMPRESSOR » AJ Series » Tecumseh High Efficiency Compressors CAJ9480Z / TAJ9480Z / CAJ9510Z / TAJ9510Z / CAJ9513Z / TAJ9513Z / CAJ4517Z / TAJ4517Z / CAJ4519Z / TAJ4519Z

Tecumseh High Efficiency Compressors CAJ9480Z / TAJ9480Z / CAJ9510Z / TAJ9510Z / CAJ9513Z / TAJ9513Z / CAJ4517Z / TAJ4517Z / CAJ4519Z / TAJ4519Z

Tecumseh High Efficiency Compressors for Refrigerators Freezers Models CAJ9513Z TAJ9513Z CAJ4517Z TAJ4517Z for Heat Exchange

Tecumseh High Efficiency Compressors CAJ9480Z / TAJ9480Z / CAJ9510Z / TAJ9510Z / CAJ9513Z / TAJ9513Z / CAJ4517Z / TAJ4517Z / CAJ4519Z / TAJ4519Z

Name: Tecumseh High Efficiency Compressors CAJ9480Z / TAJ9480Z / CAJ9510Z / TAJ9510Z / CAJ9513Z / TAJ9513Z / CAJ4517Z / TAJ4517Z / CAJ4519Z / TAJ4519Z
Brand: TECUMSEH
Rating: 5.0 (34 reviews)

Type: Rolling Piston, Hermetic
Displacement Type: Fixed Displacement Compressor
Voltage: Single-Phase 180-240V, Three-Phase 340-440V
Power: 0.85kW (some models: 2.4kW)
Weight: 20kg (some models: 40kg)
Applicable Refrigerants: R134a, R404A, etc.

Application Scenarios
• Commercial Refrigeration: Supermarket display cases, freezers, cold storage rooms, ice makers

• Industrial Equipment: Environmental test chambers, water chillers

Features: High efficiency and energy saving, reliable long-term operation, smooth running

Model:
CAJ9480Z / TAJ9480Z / CAJ9510Z / TAJ9510Z / CAJ9513Z / TAJ9513Z / CAJ4517Z / TAJ4517Z / CAJ4519Z / TAJ4519Z
Brand:
TECUMSEH

Availability:

Quantity:



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Product Description

Features & Advantages:

This group offers the widest model range and broadest power coverage within the CAJ/TAJ series (5/8 HP to 1-3/4 HP), with displacements spanning from 15.20 cc to 34.45 cc. Models in this group utilize R404A environmentally friendly refrigerant and are also compatible with alternative refrigerants including R507A, R452A, and R513A, making them the ideal upgrade choice for R22 retrofit and transition projects.

These compressors are positioned for Medium-to-High Temperature (HBP) refrigeration applications, with an evaporating temperature range of -15°C to +15°C. Cooling capacity stands out among同类 products — the CAJ4519Z delivers up to 5030 W at the +7.2°C condition and 6735 W at the +15°C condition. With displacements of 25.95 cc (CAJ4517Z) and 34.45 cc (CAJ4519Z), these two models serve as the ideal power source for medium-to-large commercial refrigeration equipment.

All models in this group are available in both single-phase (CAJ) and three-phase (TAJ) power versions, with connection types covering brazed connections and Rotalock valve interfaces. The entire series adopts a unified 887 cc oil charge standard, simplifying maintenance and management.

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CUSTOMER SERVICE客户服务加水印 LOGISTICS SOLUTIONS物流解决方案 FAQ常见问题

Q1: Why do frost lines appear on the suction line and expansion valve after the compressor starts?

A: For medium-to-high temperature cold room applications, this is generally abnormal. It indicates that the suction gas superheat is too low, posing a risk of liquid refrigerant flood-back (liquid slugging). Common causes and solutions include:

Expansion valve opening too wide: This causes excessive liquid feed. Try turning the valve clockwise (closing it) to gradually increase superheat to 5–8°C.
Excessive system refrigerant charge: Check the sight glass and monitor pressures; recover part of the refrigerant if necessary.
Poor evaporator heat exchange: E.g., insufficient fan speed, dirty or iced evaporator coil.
Expansion valve sensing bulb issues: A loose or poorly insulated bulb will cause the valve to open incorrectly wide. Securely fasten the bulb at the 2 o'clock or 10 o'clock position on the suction pipe and insulate it properly.

Q2: After installing a new compressor, what items should be checked during commissioning and startup?

A:

Electrical check: Set electrical protection devices and verify that operating voltage and current are within the normal range.
Valve check: Ensure all system valves are fully open.
System parameters: Check high/low pressure, superheat, subcooling, suction temperature, and discharge temperature.
Leak detection and observation: Perform a system leak test and watch for any abnormal noises from the unit.