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

Performance Analysis of the BSA645CR Compressor with Horsepower Calculation

1. Introduction

The BSA645CR is a constant-speed reciprocating compressor designed for refrigeration and air conditioning systems using R134a refrigerant. It is commonly used in residential and light commercial applications due to its compact design, efficiency, and compatibility with standard voltage supplies.

This article provides a detailed overview of the BSA645CR compressor’s technical specifications, explains how to calculate its output horsepower (HP), and discusses its performance characteristics.

2. Technical Specifications of

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

The information provided matches the specifications of the Trucool Huayi HY113YZ Compressor from the uploaded document. Below is a comparison and verification of the details:

Key Specifications:

1. Model : HY113YZ (matches HYE113Y as a variant)
2. Application : High Back Pressure (HBP) ✅
3. Power Input : 455W ✅
4. Refrigerant : R134a ✅
5. Horsepower :
   • 3/8 hp
6. Cooling Capacity :
   • 860 Kcal/Hr or 3414 Btu/Hr ✅
7. EER (Energy Efficiency Ratio) : 7.50 Btu/W.Hr ✅
8. Displacement : 11.3 cm³ ✅
9. Voltage Range : 187-253V ✅

Additional Details:

• Motor Type : CSIR (Capacitor Start Induction Run) ✅
• Cooling Method : Fan Cooling ✅
• Electrical Accessories :
  • Start Relay: QL2-9.5 B3
  • Thermal Protector: B120-135/B
  • Start Capacitor: 60uF/[61uF]

Weights:

• Net Weight : 11.4 kg ✅
• Gross Weight : 12.5 kg ✅

https://www.mbsm.pro/wp-content/uploads/2025/03/Mbsm_dot_pro_private_PDF-trucool-huayi-hy113yz-compressor.pdf

The AE16LMY compressor is a versatile hermetic compressor designed for both R134a (medium/high temperature) and R404a (low temperature) applications. Below is a detailed breakdown of its specifications, cooling capacities, applications, and key features when operating in High Back Pressure (HBP) mode with R134a and Low Back Pressure (LBP) mode with R404a .

AE16LMY Compressor Overview

General Specifications

• Nominal Horsepower (HP):
  • R134a Mode (HBP): 3/8 HP
  • R404a Mode (LBP): 5/8 HP
• Displacement:
  • R134a Mode (HBP): 17.4 cc
  • R404a Mode (LBP): 14.5 cc
• Motor Type: CSIR (Capacitor Start Induction Run) / CSR (Capacitor Start Run) with FC C/V control
• Weight: 13.7 kg
• Lubricant: Emkarate RL22HB POE (Polyolester lubricant)
• Connections: Rotolock suction and discharge connections

1. R134a Application (HBP Mode)

Evaporating Temperature Range:

• Medium to High Temperature: -15°C to 10°C

Cooling Capacity (Watts):

Applications:

• R134a Mode (HBP):
  The AE16LMY is ideal for medium to high-temperature refrigeration systems, such as:
  • Commercial refrigerators
  • Beverage coolers
  • Air conditioning systems
  • Display cases in supermarkets

2. R404a Application (LBP Mode)

Evaporating Temperature Range:

• Low Temperature: -32°C to 0°C

Cooling Capacity (Watts):

Applications:

• R404a Mode (LBP):
  When used with R404a , the AE16LMY is suitable for low-temperature applications, including:
  • Walk-in freezers
  • Industrial chillers
  • Cold storage facilities
  • Transport refrigeration systems

Key Features

1. Dual Refrigerant Compatibility:
   • The AE16LMY can operate efficiently with both R134a (medium/high temperature) and R404a (low temperature), making it highly adaptable to diverse applications.
2. Advanced Motor Design:
   • The CSIR motor type with FC C/V control ensures consistent performance and energy efficiency.
3. Compact & Lightweight:
   • With a weight of just 13.7 kg and compact dimensions, this compressor is easy to install and maintain.
4. Rotolock Connections:
   • Equipped with rotolock suction and discharge connections, which are particularly beneficial for low-temperature applications.
5. No Oil Cooler Required:
   • The AE16LMY does not require an oil cooler when used with R404a in low-temperature applications.
6. Liquid Injection Kits:
   • For low-temperature R404a applications, liquid injection kits may be required to ensure optimal performance.

Performance Highlights

• Versatility: The AE16LMY’s ability to handle a wide range of evaporating temperatures and cooling capacities makes it suitable for diverse applications, from commercial refrigeration to industrial freezers.
• Efficiency: Its advanced motor design and compatibility with POE lubricants ensure smooth operation and extended compressor life.

Applications Summary

• R134a Mode (HBP):
  • Medium to high refrigeration needs.
  • Examples: Supermarkets, convenience stores, air conditioning systems.
• R404a Mode (LBP):
  • Low-temperature refrigeration systems.
  • Examples: Freezers, cold storage units, industrial cooling.

Conclusion

The AE16LMY compressor is a dual-mode solution that excels in both R134a (HBP) and R404a (LBP) applications. Its ability to deliver reliable performance across a broad range of evaporating temperatures and cooling capacities makes it an invaluable component in modern refrigeration technology. By understanding its specifications and capabilities, professionals can select the appropriate configuration based on their specific refrigeration needs.

https://www.mbsm.pro/wp-content/uploads/2025/03/Mbsm_dot_pro_private_PDF-AE16LMY.pdf

Huaguang ASQ80HG Compressor: A Reliable Solution for Modern Refrigeration Systems

The Huaguang ASQ80HG compressor is a high-performance refrigeration component from the renowned Q Series , designed to meet the demands of modern cooling systems. With its compatibility with R134a refrigerant , high back-pressure (HBP) capability, and energy-efficient design, this compressor is an excellent choice for both domestic and commercial applications. Below, we explore its specifications, features, applications, and comparative analysis, supported by a detailed table.

Key Specifications

• Model : ASQ80HG
• Series : Q Series
• Power Input : 800W
• Horsepower : 1/4 HP (approximately 0.186 kW)
• Refrigerant : R134a
• Voltage/Frequency : 220-240V / 50Hz
• Application Type : High Back Pressure (HBP)
• 

Overview of Features

The Huaguang ASQ80HG compressor is engineered for efficiency, durability, and environmental sustainability. Its compatibility with R134a refrigerant , a non-ozone-depleting gas, ensures compliance with global environmental standards. With an input power of 800W , it strikes a balance between performance and energy consumption, making it cost-effective for long-term use.

The high back-pressure (HBP) capability allows the compressor to maintain stable cooling in systems where evaporator pressures are relatively high, such as in freezers, display coolers, and other medium-temperature refrigeration setups.

Applications

The versatility of the ASQ80HG makes it suitable for a wide range of cooling applications, including:

1. Domestic Refrigerators/Freezers : Ideal for home use due to its compact size and energy efficiency.
2. Display Coolers : Perfect for retail environments requiring product visibility while maintaining low temperatures.
3. Small-Scale Industrial Cooling : Suitable for systems demanding precise temperature control without heavy-duty cooling requirements.
4. Cold Storage Units : Effective in maintaining consistent temperatures for perishable goods.

Comparative Table of Huaguang Compressors

Below is a comparative analysis of the Huaguang ASQ80HG with similar models in the Q Series , highlighting its unique advantages.

Why Choose the Huaguang ASQ80HG?

1. Energy Efficiency : The 800W power input ensures optimal performance while minimizing energy consumption, reducing operational costs.
2. Environmental Friendliness : The use of R134a refrigerant ensures compliance with global environmental regulations, as it does not contribute to ozone depletion.
3. High Back Pressure Capability : Designed for systems requiring stable cooling under high back-pressure conditions, making it ideal for freezers and display coolers.
4. Compact Design : Its compact size makes it suitable for installations with limited space, such as small kitchens or retail displays.
5. Durability : Built to withstand demanding operating conditions, ensuring longevity and reliable performance.

Installation and Maintenance Tips

To ensure the best performance and longevity of the Huaguang ASQ80HG , follow these guidelines:

• Electrical Compatibility : Verify that the voltage (220-240V) and frequency (50Hz) match your local power supply.
• Proper Refrigerant Charge : Use only R134a refrigerant to avoid system inefficiencies and potential damage.
• Regular Cleaning : Clean the condenser coils periodically to prevent overheating and ensure efficient operation.
• Professional Installation : Hire a certified technician for installation and maintenance to avoid errors and ensure optimal performance.

Conclusion

The Huaguang ASQ80HG compressor from the Q Series is a versatile, energy-efficient, and environmentally friendly solution for various refrigeration needs. Its compatibility with R134a refrigerant , combined with its high back-pressure capability , makes it a standout choice for both domestic and commercial applications. Whether you’re upgrading your refrigerator, installing a new cooling system, or managing a retail display cooler, the ASQ80HG offers dependable performance and excellent value.

• • NEK1118Z

• GL90AA

1. Compressor (Model S36G)

• Purpose: The core component for pressurizing refrigerant in a cooling cycle.
• Model S36G: Likely a specific compressor model (possibly from a brand like Secop, Danfoss, or a regional manufacturer). Verify with manufacturer documentation for exact specs.
• Application: Small-scale systems (e.g., commercial water coolers, medical devices, or compact refrigeration) due to the small refrigerant charge.

2. Refrigerant (R134a, 32g)

• R134a: A common hydrofluorocarbon (HFC) refrigerant used in medium-temperature systems (e.g., refrigerators, AC units, water coolers).
• 32g Charge: Indicates a small system, typical for portable or compact units. Ensure the charge matches manufacturer specifications to avoid inefficiency or damage.

3. Water-Cooler System

• Water-Cooled Condenser: Uses water (instead of air) to dissipate heat, improving efficiency. Requires a water supply, pump, and possibly a cooling tower.
• Applications: Often found in commercial settings (e.g., water dispensers, industrial chillers, or high-efficiency HVAC systems).

4. BLY-F/950

• Likely a component model, such as:
  • Filter drier: Removes moisture/contaminants from refrigerant.
  • Pressure switch: Safety device to control system pressure.
  • Control board/Valve: Part of the system’s electrical or flow regulation.
  • Check manufacturer manuals or suppliers for exact function.

Key Considerations

1. Compatibility: Ensure the compressor (S36G) is designed for R134a and water-cooled operation.
2. Refrigerant Charge: Confirm 32g is correct (undercharging/overcharging affects performance).
3. Water Cooling: Check for scale buildup, water flow rate, and pump functionality.
4. BLY-F/950 Replacement: Cross-reference with OEM parts or contact the system manufacturer.

Troubleshooting Tips

• Low Cooling Efficiency: Check refrigerant charge, water flow, or condenser cleanliness.
• Component Failure: Test the BLY-F/950 part (e.g., continuity for switches, clogging in filter driers).
• Noise/Leaks: Inspect the compressor and refrierant lines.
• 

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