ZMC GL80AF R134a Hermetic Compressor: Technical Profile, Applications and Professional Opinion

The image shows a ZMC GL80AF hermetic compressor designed for domestic refrigeration using refrigerant R134a, manufactured in Egypt and widely used as a 1/5 HP replacement in household refrigerators and coolers. This model belongs to the GL‑AF family of ZMC low‑back‑pressure compressors, optimized for energy‑efficient operation on 220–230 V, 50/60 Hz single‑phase supply in warm climates such as North Africa and the Middle East.​

Main identification

The label in the photo clearly indicates the marking GL80AF, the brand ZMC / ZEM, the refrigerant R134a and the supply range 200–220 V / 220–230 V at 50/60 Hz, with manufacture noted as “Made in Egypt”. In ZMC’s catalog, GL‑series compressors in the 80 class are rated around 1/5 HP, with displacement close to 8 cm³ and low‑back‑pressure duty for freezer and refrigerator applications using capillary tubes.​

Table – ZMC GL80AF key data (typical catalog values for GL80 R134a series)

Technical context and typical uses

Within ZMC’s R134a range, the GL80AF is positioned between smaller GD40/GL45 units and larger GL90 models, offering a balance between cooling capacity and electrical consumption for medium‑size domestic refrigerators and small commercial coolers. Installers commonly use it as a service replacement for 1/5 HP R134a compressors in brands such as Electrolux, Zanussi and regional OEM manufacturers, particularly where a robust compressor is needed for high‑ambient conditions up to 43 °C.​

The GL80AF is designed for use with capillary expansion devices, mineral‑free ester oil compatible with R134a and standard household line voltages, making it straightforward to integrate into existing systems that originally used CFC‑12 or early R134a units of similar capacity. For correct operation, technicians must respect ZMC’s recommendations regarding oil type, charge amount, airflow around the compressor shell and proper matching between evaporator, condenser and capillary tube dimensions.​

Installation, replacement and troubleshooting notes

When replacing a failed compressor with a GL80AF, professionals typically verify that the original unit had a similar displacement and LBP duty rating and then adapt mounting springs, suction and discharge connection diameters if needed. Attention to cleanliness of the refrigeration circuit—nitrogen purging during brazing, filter‑drier replacement and precise R134a charging—is essential to guarantee reliability and avoid lubricant breakdown or acid formation inside the hermetic shell.​

Electrical checks before start‑up usually include measuring winding resistances, confirming the correct RSIR/RSCR starting components (start relay, overload protector and capacitor if required) and ensuring that the supply voltage at the compressor terminals stays within the 187–264 V working range specified for ZMC R134a models. Because GL80‑class compressors are optimized for low back‑pressure, using them outside their intended evaporating temperature range (for example in high‑back‑pressure air‑conditioning duty) can lead to overheating, high current draw and premature mechanical failure.​

Reference images and documentation

Technicians and buyers seeking more visuals can consult ZMC’s official product pages and specialist refrigeration catalogs, which show close‑up images of GL‑series compressors, terminals and mounting hardware. In addition, Mbsmgroup maintains its own photographic documentation and comparison articles featuring the GL80AF in real workshop conditions, including the same type of label as seen in the attached image.​

Several reliable PDF resources provide detailed performance data, cooling‑capacity curves and application limits for ZMC R134a compressors, including GL80‑family models. These catalogs list parameters such as displacement, current, COP, recommended capillary tube sizes and wiring diagrams, giving professionals the information they need to design or repair systems around the GL80AF platform.​

Zanussi 16 Cubic Feet Refrigerator Compressor GL90AA – 1/4 HP R134a

A 16 cubic feet Zanussi refrigerator typically relies on the GL90AA hermetic compressor, a compact piston unit designed for R134a and low back pressure applications in domestic cooling. This 1/4 HP motor delivers cooling capacities from roughly 165 W up to around 346 W depending on evaporating conditions, which is enough to keep a family‑size fridge and freezer stable even in hot kitchens.​

Technical profile of the GL90AA

The GL90AA is manufactured under the ZMC/Cubigel/Electrolux ZEM family and built specifically for 220–240 V, 50 Hz single‑phase supply used in markets such as North Africa and Europe. It operates in a low back pressure range from about −35 °C to −10 °C evaporating temperature, making it suitable for the freezer section and the fresh‑food evaporator in combined refrigerators.​

Inside its welded shell, a single‑cylinder piston with a displacement of about 9.08–9.09 cm³ compresses the R134a, driven by an RSIR motor controlled by a start relay and overload protector. Static shell cooling, ester oil lubrication (ISO VG 19 or ISO VG 32 depending on version) and a 43 °C maximum ambient rating help the compressor maintain performance and reliability in warm climates where kitchen temperatures can be high.​

Main specifications table

Why Zanussi chooses the GL90AA for 16 ft³

A 16 ft³ Zanussi refrigerator, usually in the 370–425 liter range, combines a generous fresh‑food compartment with a freezer designed to reach well below −18 °C. To maintain those temperatures under frequent door openings, the system needs a compressor that can provide solid capacity at low evaporating temperatures without excessive energy consumption or noise, especially in small apartments and family homes.​

With its 1/4 HP rating, 9 cm³ displacement, and low back pressure characteristics, the GL90AA matches the thermodynamic design of these cabinets, particularly when paired with a correctly sized capillary tube, condenser and evaporator set. Spare‑parts distributors across Europe and the MENA region list GL90AA explicitly as original or equivalent equipment for many Electrolux–Zanussi refrigerator models, confirming its position as a standard solution for this capacity segment.​

Application matching table

Installation and service considerations

Technicians replacing a Zanussi 16 ft³ compressor with a GL90AA must observe best practices to protect the new unit and the customer’s investment. The old R134a charge should be fully recovered, and the filter‑drier replaced with a compatible R134a/POE model to keep moisture and acids under control. Tubes should be cut and brazed under a small nitrogen flow to prevent oxide formation inside the lines, and suction/discharge diameters given in the technical sheet (about 6.5 mm suction, 4.9 mm discharge) should be respected to maintain design capacity and good oil return.​

Because the GL90AA uses ester oil, any contamination with mineral oil from previous generations of compressors must be avoided; if the old system contained mineral oil, thorough flushing or component replacement is recommended. After brazing, the circuit needs a pressure test, deep evacuation to below roughly 500 microns, and precise charging with the mass of R134a specified by Zanussi to secure low noise, correct suction superheat and long compressor life.

​

The EGM91AA is a hermetic reciprocating compressor manufactured by ZMC, designed primarily for use with R134a refrigerant. It operates on a voltage range of 220-240V at 50Hz and is typically used for low back pressure (LBP) refrigeration applications like household refrigerators and freezers.​​

Main Specifications

• Refrigerant: R134a​​

• Application: LBP (Low Back Pressure)​

• Power: 1/4 HP​

• Voltage/Frequency: 220-240V, 50Hz​​

• Motor Type: RSIR/CSIR​

• Starting Device: PTC QP2-15Ω​

• Oil Charge: 180 cm³ esters (POE)​

• CE certified​​

Technical Details

• Evaporating Temperature Range: -30°C to -10°C (suitable for refrigeration, not deep freeze)​

• Maximum Motor Temperature: 130°C​

• Locked Rotor Current: 6.78 A​

• Voltage Working Range: 187-264V​

• Compressor Cooling: Static​

• Expansion device: Capillary tube​

Typical Uses

• Household refrigerators

• Small commercial refrigerators

• Appliances using R134a needing 1/4 HP compressor power​

This model is manufactured in Egypt and is widely compatible with fridges operating in regions where 220-240V, 50Hz power is standard

For the EGM91AA (LBP, R134a), the answer leans more to freezing / low‑temperature cooling, but it is used for both refrigerators and freezers depending on the system design.​

What LBP means

• LBP = Low Back Pressure, which corresponds to low evaporating temperatures, typically about −30 °C to −10 °C.​

• Such compressors are commonly used in freezers, deep freezers, and low‑temperature refrigerator compartments.​

So for EGM91AA

• Its data sheet lists application = LBP with evaporating range −30 °C to −10 °C, exactly the range used for freezer or low‑temperature refrigerator circuits.​

• Practically: if you charge and size the capillary for −25/−30 °C, it works as freezing; if you design around −12/−10 °C, it becomes strong cooling / chiller level.

The EGM91AA compressor from ZMC stands out as one of the most notable solutions in the domestic and light commercial refrigeration sector thanks to its use of R134a refrigerant and its high efficiency under varying climatic conditions. It delivers optimal cooling performance for refrigerators operating on 220–240 V, 50 Hz power, making it a practical choice for both local and international markets. Its advanced technical features translate into quick response, reduced energy consumption, and excellent compatibility with household systems, providing reliable performance backed by solid regional manufacturing.​​

Journalistic introduction

In the fast‑moving world of refrigeration technology, real innovation often hides in the small components that only technicians and specialists tend to notice. At the core of every modern refrigerator, a compressor sets the rhythm for the entire system’s life span and efficiency, and the EGM91AA model is a clear illustration of this principle. A compact steel shell, carefully engineered handling of R134a refrigerant, and optimized power consumption come together to keep food safe and temperatures stable even when ambient heat pushes equipment to its limits.​​

This compressor is more than a metal capsule in a sealed circuit; it is a technical product with a manufacturing story that starts in Egypt and extends across regional markets serving home refrigeration. Designed for 220–240 V, 50 Hz grids and carrying CE conformity, it offers installers and repair professionals a unit that combines robustness, availability of spare parts, and predictable behavior in low back‑pressure applications. As local industries expand their capabilities, models like the EGM91AA show how regional manufacturing can compete in quality while remaining accessible to small workshops and major appliance brands alike.​​

Technical specifications table for EGM91AA

https://www.mbsm.pro/wp-content/uploads/2025/04/Mbsm_dot_pro_private_PDFMbsm_dot_pro_private_PDF_S26TY.pdf

The P14TY is a refrigerant compressor model listed in the provided datasheet, designed for use in refrigeration or air conditioning systems. Below is a summarized technical breakdown of its key specifications:

P14TY Compressor Specifications

Key Observations

1. Refrigerant (R12):
   • The P14TY is designed for R12, an obsolete CFC refrigerant banned under the Montreal Protocol due to ozone depletion. Modern alternatives (e.g., R134a, R404A) require retrofitting or replacement.
2. Applications:
   • Likely used in medium-temperature refrigeration (e.g., commercial refrigerators, chillers) given its capacity and COP at -25°C evaporating temperature.
3. Efficiency (COP 1.73):
   • Lower COP compared to modern compressors, indicating higher energy consumption.
4. Replacement Considerations:
   • If retrofitting for alternative refrigerants, ensure compatibility with oil type (e.g., POE for HFCs) and system components.
   • Verify electrical specs (voltage, starting torque) for new installations.

Testing Conditions (CECOMAF/ASHRAE)

• Evaporating Temp: -25°C (LBP testing for low-temperature applications).
• Condensing Temp: 55°C.
• Ambient Temp: 32°C.

Actionable Recommendations

• For Maintenance:
  • Check oil levels and contamination if still using R12.
  • Inspect capacitors/relays (common failure points in CSIR motors).
• For Replacement:
  • Consider modern equivalents (e.g., Panasonic/Copeland models for R404A/R134a).
  • Consult HVAC technician for system compatibility and retrofitting.

Siberia Compressor Catalogue Overview

The Siberia Compressor Catalogue provides detailed specifications and performance data for various compressor series designed for refrigeration systems. These compressors are available in multiple configurations, including R134a and R600a refrigerants, catering to different cooling capacities and applications. Below is an organized breakdown of the catalog’s key sections:

1. Compressor Series Overview

S Series (Low Back Pressure – LBP)

• Refrigerants: R600a (High Efficiency), R600a (Medium Efficiency), R134a
• Applications: Suitable for small to medium-sized refrigerators.
• Key Features:
  • Compact design
  • Low noise and vibration
  • High reliability

V Series (Low Back Pressure – LBP)

• Refrigerants: R600a, R134a
• Applications: Ideal for compact refrigeration units.
• Key Features:
  • Energy-efficient operation
  • Small footprint
  • Environmentally friendly refrigerants

F Series (Low Back Pressure – LBP)

• Refrigerants: R134a, R600a
• Applications: Designed for larger refrigeration systems.
• Key Features:
  • High cooling capacity
  • Multiple motor types (RSIR/RSCR)
  • Robust performance under varying conditions

T Series (Low Back Pressure – LBP)

• Refrigerants: R600a, R134a
• Applications: Versatile use in household and commercial refrigeration.
• Key Features:
  • Very compact size
  • Low noise and vibration
  • High reliability

2. Performance Specifications

Example: T Series Compressors (R600a)

Example: S Series Compressors (R600a)

3. Special Requirements for Refrigerants

R134a Compressors

• The open time of the compressor connection pipe should not exceed 10 minutes .
• Use dedicated vacuum pumps and charging equipment for R134a.
• Avoid using organic substances incompatible with R134a in the refrigeration system.
• Ensure strict control of moisture, impurities, paraffin, silicone oil, and chloride ions.

R600a Compressors

• Follow safety protocols for hydrocarbon refrigerants during installation and operation.
• Do not tamper with the pre-filled specialized oil in the compressor.
• Use appropriate tools and equipment to ensure safe handling of R600a.

4. Refrigerator Size Estimation

The cooling capacity of a compressor determines the refrigerator size it can support. For example:

• BTF60AA (1/7 HP):
  • Cooling Capacity: 105 W
  • Approximate Refrigerator Size: 157.5 – 210 liters
    • Calculation: $105\text{W}\times 1.5\text{to}2=157.5\text{to}210\text{liters}$

5. Outline Drawings and Packaging

Each compressor model includes detailed outline drawings and packaging specifications. For instance:

• Packaging Dimensions:
  • Carton Size: $1120\text{mm}\times 824\text{mm}\times 870\text{mm}$
  • Container Capacity: Up to 28 units per container.

6. General Requirements for Installation and Operation

• Store compressors in a dry, well-ventilated area.
• Avoid tilting or inverting during transportation.
• Install within 10 minutes after removing protective plugs.
• Ensure reliable grounding during operation.
• Avoid high-voltage or vacuum conditions during startup.

To determine the refrigerator size (in liters) that a 1/7 HP compressor can cool, we need to refer to the performance data of the compressors listed in the provided files. Specifically, the BTF60AA compressor (1/7 HP) is a good reference point for this calculation.

Key Specifications for BTF60AA (1/7 HP):

• Cooling Capacity: 105 W
• Refrigerant: R600a
• Voltage: 220-240V / 50Hz

The cooling capacity of a compressor directly correlates with the volume of the refrigerator it can cool. Typically:

• 1 W of cooling capacity can cool approximately 1.5 to 2 liters of refrigerator volume.

Calculation:

For the BTF60AA compressor with a cooling capacity of 105 W , the approximate refrigerator volume it can cool is:

$$\text{Refrigerator Volume}=\text{Cooling Capacity (W)}\times \text{Factor (1.5 to 2)}$$$$\text{Refrigerator Volume}=105\text{W}\times 1.5\text{to}2$$$$\text{Refrigerator Volume}=157.5\text{to}210\text{liters}$$

Table for 1/7 HP Compressor:

Below is a table summarizing the approximate refrigerator size (in liters) based on the cooling capacity of a 1/7 HP compressor:

Compressor Model	Power (HP)	Cooling Capacity (W)	Approximate Refrigerator Size (Liters)
BTF60AA	1/7	105	157.5 – 210

https://www.mbsm.pro/wp-content/uploads/2025/03/Mbsm_dot_pro_private_PDF-comprehensive-guide-to-siberia-compressors-specifications-performance-and-applications.pdf

https://www.mbsm.pro/wp-content/uploads/2025/03/Mbsm_dot_pro_private_PDF-comprehensive-guide-to-siberia-compressors-specifications-performance-and-applications.pdf

• Type: Reciprocating compressor
• Frequency: 50Hz
• Voltage: 220-240V
• Displacement: 5.7 cm³/rev
• Cooling Capacity: 147 kcal/h
• Input Power: 171 W
• COP: 0.229
• EER: 106
• HP: 1/5 hp

This compressor is known for its reliable performance, energy efficiency, and quiet operation. It’s a popular choice for replacement in various refrigeration appliances.

NE2134Z Compressor Specifications

Applications: Refrigerators, small freezers, and small refrigeration units

Brand: Often manufactured by Embraco (Aspera).

Type: Hermetic

Refrigerant: R134a

Voltage: 220-240V

Frequency: 50 Hz

Displacement: 14.3 cm³

Temperature Range: -35°C to -5°C

Compressor Embraco Aspera NE2134Z, LBP – R134a, 220 – 240V/1/50Hz, 1,/2 HP, discharge 14.28 cm3, LRA 17.00 A, motor type CSIR, lubricant type POE 22, lubricant charge 350 ml, 364 W at -23.3 / 54.4 °, expansion device: capillary or valve, cooling: fan cooling, weight 11.65 kg

KK R134a and R404a Commercial Refrigeration Compressors

SECOP Hermetic Piston Compressors

Model：SC21G

Refrigerant：R134A

Power：220-240V/50/60HZ

Back Pressure:Low/High

Power Source: AC Power

Voltage range[V]:187- 254

Evaporating temperature [°F]：-25 to -5

Transport Package: Wood Package

Product feature

#Mbsm-pro, #Mbsmdotpro, #mbsmpro

Hermetic compressor for refrigerators model VMH1113Y (LBP).

Compressor technical specifications:

• Model:  VMH1113Y .
• Inverter model:  JXPR-AS01 .
• Power supply: 220-240V/50Hz .
• Refrigerant: R600a .
• Applications: LBP .
• Engine: PMSM .
• Weight: 4.8Kg .
• Capacity: 8.9cc .
• Condensation temperature: 60ºC .
• Evaporation temperature range:  -35ºC / -10ºC .
• Motor speed: 1320-4500rpm .
• Replacement refrigerator compressor 600a inverter VMH1113Y compatible with various brands and models: 1/6 hp r600 , 1/5 hp r134a

Original codes:

• Indesit: C00674341 and C00860064 .
• Whirlpool: 488000674341 and 488000860064 .