Mbsm.pro, Compressor, MA57LBJG, 1/6 hp, LG, Cooling, R134a, 160 W, 1.2 A, 1Ph 220-240V 50Hz, LBP, RSIR, -35°C to -10°C, Freezing

The LG MA57LBJG is a staple in the refrigeration world, specifically engineered for low back pressure (LBP) applications. As a technician or engineer, you recognize this model by its robust build and reliability in domestic cooling. Operating on R134a refrigerant, it balances efficiency with a compact frame, making it a go-to choice for household freezers and large refrigerators.

Technical Specifications Table

Efficiency Metrics (COP) & Performance

Compressor Replacement Guide

Top 5 Replacements (Same R134a Gas)

1. Embraco: EMI60HER / EMT45HDR
2. Secop (Danfoss): TLES5.7FT.3
3. Tecumseh: THG1358YKS
4. Samsung: SD152H-L1UA
5. Huayi: HYB60MHU

Top 5 Replacements (Alternative Gas – R600a Conversion Required)

1. LG: CMA057LHEG
2. Embraco: EMX55CLC
3. Secop: TLES5.7KK.3
4. ACC: HMK80AA
5. Donper: S65CY

Note: Replacing R134a with R600a requires a complete system flush, change of oil, and a specific R600a charging procedure due to flammability.

Engineering Insights: Comparison & Benefits

When compared to the slightly more powerful MA62LJJG (1/5 HP), the MA57LBJG offers a higher energy efficiency ratio for mid-sized units. While the 1/5 HP model provides faster pull-down times, the MA57LBJG is optimized for maintaining steady-state freezing temperatures with lower electrical overhead.

Why use this model?

• Copper Windings: Unlike some newer aluminum-wound budget models, the copper internals of the MA57LBJG ensure better thermal conductivity and longer life under high-heat conditions.
• Low Vibration: The internal spring mounting is tuned specifically for domestic environments, ensuring whisper-quiet operation.

Professional Tips for Installation:

Pro Tip: Always replace the filter drier when swapping this compressor. Since it uses POE oil, it is highly hygroscopic (absorbs moisture quickly). Limit the time the system is open to the atmosphere to under 15 minutes.

Focus Keyphrase: LG MA57LBJG Compressor 1/6 HP R134a LBP Technical Specifications and Replacements

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Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, MA57LBJG, LG Compressor, 1/6 HP, R134a, LBP, EMI60HER, TLES5.7FT.3, THG1358YKS, SD152H, HYB60MHU, Refrigeration Repair, Compressor Cross Reference

Excerpt: The LG MA57LBJG is a high-performance 1/6 HP compressor designed for R134a refrigerant in Low Back Pressure (LBP) applications. Ideal for domestic freezers, it delivers 160W of cooling capacity at -23.3°C. This guide provides comprehensive technical data, winding details, and a full cross-reference list for professional refrigeration technicians and engineers.

The motor shown in the image is a Donper brand, model LJ118CY1. This motor uses R600a (isobutane) refrigerant.

Based on its power output, this motor is approximately 1/4 horsepower (or 1/4+ horsepower with good thrust), and is very suitable for use in household refrigerators ranging from 14 to 16 cubic feet (approximately 320 to 450 liters), depending on the insulation efficiency and circuit design.

Donper is a leading and highly respected Chinese brand in the global market, and major companies use it in their original production lines because it combines quiet operation with low energy consumption.

Technical Specification Table

Compressor Replacements

5 Replacements (Same Gas R600a):

1. Embraco: EMX70CLC
2. Secop (Danfoss): NLE11KK.4
3. Jiaxipera: NT1114Y
4. Huayi: HYB115MHU
5. LG: CMA069LHEM

5 Replacements (Other Gas R134a – Requires system flush and oil change):

1. Embraco: FFI 7.5HAK
2. Secop: TLES7.5KK.3
3. ZMC: GM80AF
4. Donper: LU118CY (R134a version)
5. Panasonic: QB77C16GPX5

Mbsmpro.com, Compressor, LJ118CY1, 1/4 hp, Donper, Cooling, R600a, 198 W, 1.1 A, 1Ph 220-240V 50Hz, LBP, RSCR, -35°C to -15°C

The LJ118CY1 stands as a high-efficiency hermetic reciprocating compressor specifically engineered for domestic refrigeration. Developed by Donper, a global leader in cooling technology, this model is optimized for R600a refrigerant, ensuring a minimal environmental footprint while delivering robust thermal performance.

Efficiency and Performance Metrics

The LJ118CY1 is designed for Low Back Pressure (LBP) applications. Its displacement of 11.8cc allows it to reach deep freezing temperatures quickly, making it ideal for large refrigerators and domestic upright freezers.

Performance Data Table (ASHRAE Conditions)

Comparison: Donper LJ118CY1 vs. Standard 1/5 HP Units

When comparing this unit to a standard 1/5 HP compressor (like the GM70AZ), the LJ118CY1 offers a significantly higher displacement ($11.8\text{ cm}^3$ vs $7.0\text{ cm}^3$). This extra “lung capacity” allows the refrigerator to recover its temperature faster after the door has been opened frequently, which is vital in warmer climates.

Technical Advice and Installation Benefits

• Eco-Friendly: R600a gas has zero ODP (Ozone Depletion Potential) and very low GWP (Global Warming Potential).
• Low Noise: The LJ118CY1 is known for its dampened vibration levels, making it suitable for modern open-plan kitchens.
• Maintenance: Always ensure the condenser is clean. Because R600a operates at lower pressures, even a slight blockage can cause a noticeable drop in COP (Coefficient of Performance).

Expert Notice: When replacing a compressor with the LJ118CY1, ensure the vacuum process is thorough. R600a systems are highly sensitive to moisture and non-condensable gases.

Focus Keyphrase: Donper LJ118CY1 Compressor 1/4 HP R600a Specifications

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Tags: LJ118CY1, Donper, 1/4 HP Compressor, R600a, Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Refrigerator Repair, EMX70CLC Replacement, NLE11KK.4, Jiaxipera NT1114Y, Cooling Capacity, LBP Compressor.

Excerpt: The Donper LJ118CY1 is a high-performance 1/4 HP hermetic compressor designed for domestic refrigerators using R600a refrigerant. Known for its efficiency and quiet operation, it features a displacement of 11.8cc and a cooling capacity of 198W at -23.3°C. This article provides technical details, wiring diagrams, and compatible replacement models for professional technicians.

Technical Specifications: Danfoss NL7.3FT Compressor

Compressor Cross-Reference & Replacements

Same Refrigerant (R134a)

1. Embraco NEK2125GK / FFI8.5HAK
2. Secop TLES7.5FT.3
3. Tecumseh AEZ1380Y
4. ACC / Cubigel GL80AA / GL80AB
5. Huayi HYB81MHU

Alternative Refrigerants (R600a/R290)

1. Embraco EMT6170Z (R404A conversion)
2. Secop NLE8.8CN (R290 – High Efficiency)
3. Embraco VEMZ 9C (R600a Inverter upgrade)
4. Donper KK73FT (R134a direct clone)
5. Jiaxipera NT1114Y (R600a equivalent cooling)

Mbsmpro.com, Compressor, Danfoss, NL7.3FT, 1/4 hp, Secop, Cooling, R134a, 185 W, 1.3 A, 1Ph 220-240V 50Hz, LBP, RSIR, -35°C to -10°C, Freezing

The refrigeration industry relies heavily on the reliability of the heart of the system: the compressor. Among the elite performers in the domestic and light commercial sector, the Danfoss NL7.3FT stands out as a robust, European-engineered solution. Transitioning from the legacy Danfoss brand to Secop, this model remains a staple for technicians who demand durability and high thermal efficiency in low-temperature environments.

Efficiency Metrics (COP) & Performance Data

Engineering Insight: Why the NL7.3FT?

As an engineer in the field, I’ve found that the NL7.3FT excels because of its internal suspension system. Unlike cheaper alternatives that vibrate excessively and cause copper fatigue, the Danfoss “NL” series uses a refined valve plate design that reduces noise while maintaining high volumetric efficiency.

When comparing it to the Embraco FFI series, the Danfoss NL7.3FT often shows a more stable performance under fluctuating voltage (220-240V range). It is specifically designed for LBP (Low Back Pressure), making it the ideal candidate for deep freezers where the goal is to reach -23°C quickly and hold it with minimal energy consumption.

Field Notes & Expert Advice

• Capillary Cleaning: If you are replacing a burnt-out NL7.3FT, always flush the system with R141b. R134a systems are prone to paraffin wax buildup in the capillary tube.
• Oil Management: This unit uses POE oil. Avoid leaving the suction ports open for more than 10 minutes, as POE oil is highly hygroscopic (it absorbs moisture from the air instantly).
• The LST/HST Factor: While rated for Low Starting Torque, adding a start capacitor (80µF) can convert this into a High Starting Torque unit, which is a lifesaver in regions with unstable power grids.

Focus Keyphrase: Danfoss NL7.3FT Compressor R134a 1/4 HP Low Back Pressure Refrigeration

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Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Danfoss NL7.3FT, Secop 105G6726, 1/4 HP Compressor, R134a LBP, Embraco NEK2125GK Replacement, Fridge Compressor Repair, NL7.3FT Specs, HVAC Engineering.

Excerpt: The Danfoss NL7.3FT is a high-performance LBP compressor designed for R134a refrigerant, delivering 185 Watts of cooling capacity at -23.3°C. Ideal for domestic freezers and light commercial units, this 1/4 HP motor offers exceptional reliability and low noise levels, making it a favorite for professional technicians and refrigeration engineers globally.

Focus keyphrase: Troubleshooting Automatic Washer Stops After Filling Cycle

SEO Title: Mbsmpro, Troubleshooting, Automatic Washer, Stops After Filling, Water Level Switch, Lid Switch, Drain Motor, Error Codes

Meta Description: Is your washing machine dead silent after filling? Learn how to diagnose lid switches, pressure sensors, and drive motors like a pro. Expert repair guide for top and front loaders.

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Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Washer Repair, Appliance Troubleshooting, Water Level Switch, Lid Switch Failure, DIY Repair, Washing Machine Maintenance

Excerpt: If your automatic washer fills with water but refuses to start the agitation or wash cycle, you are facing a common mechanical or electronic failure. This guide explores the primary culprits, including faulty lid switches, clogged pressure tubes, and failing drive motors, providing technical insights to help you diagnose and repair your appliance efficiently and safely.

Mbsmpro.com, Troubleshooting, Automatic Washer, Stops After Filling, Lid Switch, Pressure Sensor, Drive Motor, 110V-240V, 50/60Hz

When an automatic washer fills up but then sits in stony silence, it’s more than just an inconvenience—it’s a technical puzzle. As someone who has spent years in the field with a multimeter in hand, I can tell you that this specific symptom usually points to a break in the “logical sequence” of the machine’s controller.

The Anatomy of the Failure

For a washer to transition from the Fill Stage to the Wash Stage, specific electrical conditions must be met. If the control board doesn’t receive a “Go” signal from the sensors, the timer will stall.

Primary Technical Culprits

Deep Dive: The Water Level Pressure Switch

The most common reason a machine stops after filling is that it doesn’t know it’s full. A small transparent tube connects the outer tub to a pressure switch. If this tube is clogged with “scrub” (detergent gunk) or has a pinhole leak, the diaphragm inside the switch won’t trip the electrical contact to the motor.

Technical Comparison: Pressure Switch vs. Hall Effect Sensor

The “Lid Switch” Logic

In most American-style top loaders, the lid switch is wired in series with the motor. If the plastic tab on your lid is broken, or the internal switch has failed due to arcing, the machine will fill perfectly (as the water valves are on a different circuit) but will never “click” over to start the motor.

Engineering Insight: Always check for continuity across the lid switch terminals using a multimeter. If the resistance is infinite ($\infty \Omega$) when the switch is depressed, the component is defective.

Wiring Schematic Concept

For technicians, the circuit usually follows this path:

L1 (Hot) -> Timer/Main Board -> Water Level Switch (Full Position) -> Lid Switch -> Motor Start Capacitor -> Main Motor -> Neutral.

Pro-Tips and Maintenance Notices

• The “Blow” Test: If you suspect the water level switch, disconnect the small tube from the tub side and blow gently into it toward the switch. You should hear a distinct “click.” If you don’t, the diaphragm is ruptured.
• Capacitor Health: If the motor hums but doesn’t turn, the Start Capacitor is likely weak. Check the microfarad ($\mu F$) rating against its label.
• Safety First: Always disconnect the power supply before testing internal components. Water and electricity are a lethal combination.

Engineer’s Note: Modern “High Efficiency” (HE) machines may stop and “sense” for several minutes. Do not confuse a sensing pause with a mechanical failure. Check for error codes (e.g., F8 E1 or LF) on the digital display.

Mbsmpro.com, Compressor, QB86C18GAX5, 1/4 hp, Panasonic, Cooling, R134a, 201 W, 1Ph, 220-240V 50Hz, LBP, RSIR, -35°C to -15°C, Freezing

Technical Specifications Table

Compressor Cross-Reference (Same Gas – R134a)

1. Embraco: EGAS80HLR / FFI8.5HAK
2. Danfoss/Secop: TLES8.7F / NLE8.8FT
3. LG: MA88LAEP
4. Tecumseh: THG1374YS
5. Samsung: SK182H-L2U

Compressor Cross-Reference (Alternative Gas – R600a)

1. Panasonic: QB86C18GAX5 (R134a specific, use QB91 series for R600a equivalent)
2. Embraco: EM2X1121U
3. Secop: NLE11KK
4. Jiaxipera: NT1114Y
5. Donper: LU111CY

Panasonic QB86C18GAX5: The Reliable Powerhouse of Tropical Refrigeration

In the demanding world of refrigeration, the Panasonic QB series has established itself as a benchmark for durability and thermal resilience. The QB86C18GAX5, a 1/4 HP unit, is a staple in high-capacity domestic refrigerators and light commercial freezers. Designed to operate under Low Back Pressure (LBP) conditions, this compressor is particularly favored in regions with high ambient temperatures due to its superior heat dissipation and robust motor design.

Performance and Efficiency

With a displacement of 8.6cc, the QB86C18GAX5 strikes a perfect balance between power consumption and cooling velocity. It provides a cooling capacity of approximately 201 Watts (686 BTU/h), which is the sweet spot for large family refrigerators or chest freezers. The RSIR (Resistance Start – Induction Run) motor ensures a simple electrical setup, reducing the points of failure compared to systems requiring complex start/run capacitors.

Comparison: Panasonic vs. Embraco & Secop

While the Embraco EGAS80HLR is often cited as a direct competitor, the Panasonic QB86C18GAX5 often wins on mechanical silence. Panasonic’s internal damping system is specifically engineered to reduce “knocking” sounds during the start-stop cycle. Compared to the Secop TLES8.7F, the Panasonic unit tends to handle voltage fluctuations slightly better, a critical factor for field technicians working in areas with unstable power grids.

Professional Installation & Maintenance Tips

• Oil Sensitivity: This compressor uses POE (Ester) oil. This oil is extremely hygroscopic (absorbs moisture quickly). Never leave the compressor open to the atmosphere for more than 10 minutes during installation.
• Vacuuming Protocol: A deep vacuum is non-negotiable. Moisture mixed with POE oil creates acid that will etch the copper windings and lead to a “grounded” compressor.
• Filter Drier Replacement: Always use a high-quality 20g or 30g drier. Given the 1/4 HP power, a larger drier ensures a cleaner system for a longer lifespan.

Focus Keyphrase: Panasonic QB86C18GAX5 Compressor 1/4 HP R134a Specs

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Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Panasonic, QB86C18GAX5, 1/4 HP, R134a, LBP, EGAS80HLR, FFI8.5HAK, TLES8.7F, MA88LAEP, THG1374YS, SK182H-L2U, Refrigeration Repair, Compressor Replacement.

Excerpt: The Panasonic QB86C18GAX5 is a 1/4 HP reciprocating compressor engineered for high-efficiency Low Back Pressure (LBP) applications. Using R134a refrigerant and a displacement of 8.6cc, it delivers a cooling capacity of 201W. This guide provides technicians with essential technical data, including amperage, displacement, and a comprehensive cross-reference list for modern repairs.

Mbsm.pro, Compressor, KX69LBEG, 1/5 hp, LG Electronics, R134a, 150 W, 1Ph, 220-240V 50Hz, LBP, Reciprocating, -35°C to -10°C, Refrigerator

Technical Specifications Table

Compressor Cross-Reference (Same Gas – R134a)

1. Danfoss/Secop: TLS7F
2. Embraco: EMI60HER / NEK1116Z
3. Tecumseh: THG1365YS
4. Samsung: SD162
5. ACC/Sikor: GVY66AA

Compressor Cross-Reference (Alternative Gas – R600a)

1. LG: MSA69LBEG (R600a version)
2. Embraco: EMX55CLC
3. Danfoss: TLES5.7KK.3
4. Secop: NLE6.0KK
5. Jiaxipera: T1112GY

Mastering the LG KX69LBEG: The Heart of Modern Domestic Refrigeration

When a refrigerator fails, the culprit is often the compressor—the mechanical heart that pumps life into the cooling cycle. Among the most reliable workhorses found in household units is the LG KX69LBEG. This 1/5 HP reciprocating compressor is engineered specifically for Low Back Pressure (LBP) applications, making it the ideal candidate for freezers and standard kitchen refrigerators that need to maintain consistent sub-zero temperatures.

Performance Dynamics

The KX69LBEG operates on a displacement of 6.9cc. Unlike larger commercial units that rely on high-torque start capacitors, this model utilizes an RSIR motor configuration. This means it is highly efficient for domestic settings where power stability is standard, drawing approximately 150 Watts during its peak cooling phase. Its thermally protected design ensures that even during high-ambient summer temperatures, the internal windings remain shielded from catastrophic failure.

Comparative Analysis: LG vs. The Competition

In the world of 1/5 HP compressors, the KX69LBEG stands out for its low vibration and silent operation. Compared to the Danfoss TLS7F, the LG model often provides a more compact footprint, which is essential for modern “slim-back” refrigerator designs. While the Embraco NEK1116Z might offer a slightly higher BTU output, the LG KX69LBEG is prized for its longevity and “copper-heavy” winding durability.

Engineering Insights and Installation Tips

• System Cleansing: When replacing a burnt-out KX69LBEG, always flush the condenser and evaporator. Residual acidity from a motor burnout will destroy the new unit.
• Filter Drier: Never reuse a filter drier. Always install a new 15g or 20g XH-9 molecular sieve drier to handle the R134a refrigerant.
• Vacuuming: Ensure a vacuum level of at least 500 microns. R134a is highly sensitive to moisture, which can lead to capillary tube waxing and blockage.

Engineer’s Note: If you are substituting this model with an R600a alternative, you MUST change the expansion device (capillary) and the lubricant. Mixing R134a and R600a systems without proper modification is a recipe for system failure.

Focus Keyphrase: LG KX69LBEG Compressor 1/5 HP R134a Technical Specs

SEO Title: Mbsm.pro – LG KX69LBEG Compressor: 1/5 HP, R134a, LBP Technical Guide

Meta Description: Discover the complete technical specifications for the LG KX69LBEG compressor. This 1/5 HP R134a unit is perfect for domestic refrigerators. Learn about its cooling capacity, amperage, and the best 5 replacements for easy repairs.

Slug: lg-kx69lbeg-compressor-1-5hp-r134a-specifications

Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, LG, KX69LBEG, 1/5 HP, R134a, LBP, Compressor Replacement, TLS7F, EMI60HER, THG1365YS, SD162, GVY66AA, EMX55CLC, TLES5.7KK, Refrigeration Repair.

Excerpt: The LG KX69LBEG is a high-performance 1/5 HP reciprocating compressor designed for Low Back Pressure (LBP) domestic refrigeration. Operating on R134a refrigerant at 220-240V/50Hz, this thermally protected unit is the standard for LG’s cooling reliability. In this guide, we break down its displacement, amperage, and provide a comprehensive list of equivalent replacement models.

Focus Keyphrase: Donper S118CY1 Compressor R600a 1/4 HP LBP Refrigeration Specifications and Replacement Guide for Technicians and Engineers

SEO Title: Mbsmpro.com, Donper, S118CY1, Compressor, 1/4 HP, LBP, R600a, 210 W, 1Ph 220-240V 50Hz, Freezing and Cooling

Meta Description: Detailed technical analysis of the Donper S118CY1 compressor. Includes 1/4 HP power rating, R600a refrigerant specs, LBP application data, and equivalent replacement models for professional repair.

Slug: donper-s118cy1-compressor-r600a-1-4-hp-specs

Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Donper, S118CY1, R600a, Compressor, 1/4 HP, LBP, Refrigeration, Embraco EMX70CLC, Secop NLY90R, Jiaxipera NT1114Y, Huayi HYE11YG, Cubigel GL90AA

Excerpt: The Donper S118CY1 compressor is a cornerstone of modern domestic refrigeration, engineered for high efficiency in Low Back Pressure (LBP) environments. Utilizing R600a refrigerant, this 1/4 HP unit provides reliable cooling for large household refrigerators and freezers. This guide explores its technical parameters, electrical requirements, and the best cross-reference alternatives for field technicians.

Mbsmpro.com, Donper, S118CY1, Compressor, 1/4 HP, LBP, R600a, 210 W, 1.1 A, 1Ph 220-240V 50Hz, Cooling and Freezing

In the realm of hermetic refrigeration, the Donper S series has established a reputation for balancing cost-effectiveness with thermal durability. The S118CY1 model, specifically designed for R600a (isobutane) systems, represents a shift toward environmentally friendly refrigerants with low Global Warming Potential (GWP). As an engineer working in the field, understanding the nuances of this compressor is vital for ensuring system longevity and optimal thermodynamic performance.

Engineering Overview: The S118CY1 Architecture

The S118CY1 is a reciprocating piston compressor designed for Low Back Pressure (LBP) applications. This means it is optimized to operate at low evaporating temperatures, typically between -35°C and -15°C, making it the ideal “heart” for chest freezers and the freezer compartments of large side-by-side refrigerators. With a displacement of approximately 11.8 cm³, it delivers a cooling capacity that sits comfortably in the 1/4 HP category.

One of the defining features of this model is its thermal protection system. In high-ambient environments, compressors often face the risk of winding burnout. The S118CY1 incorporates an internal or external thermal protector that interrupts power if the internal temperature exceeds safety thresholds, a critical fail-safe for residential appliances.

Technical Specifications Table

Performance Comparison: R600a vs. R134a

When comparing the S118CY1 to its R134a counterparts (like the QD series), the thermodynamic efficiency of R600a becomes evident. R600a operates at lower pressures, which reduces the mechanical stress on the compressor valves and pistons. However, because R600a is flammable, the S118CY1 is built with “thermally protected” electrical components to prevent sparking in the event of a leak.

Cross-Reference and Replacement Guide

When a S118CY1 fails, finding an exact match is preferred, but field technicians often need equivalents based on local availability.

Top 5 Replacements (Same Refrigerant: R600a)

1. Embraco EMX70CLC: Known for extremely low noise levels and high COP.
2. Secop (Danfoss) NLY9.0R: A robust European alternative with excellent thermal management.
3. Jiaxipera NT1114Y: Widely used in high-end Samsung and LG units.
4. Huayi HYE11YG: A direct competitor with similar displacement and mounting footprints.
5. Sikolan ADW110: A reliable alternative for budget-friendly repairs.

Top 5 Replacements (Alternative Refrigerant: R134a)
Note: Replacing an R600a compressor with an R134a unit requires a complete system flush, oil compatibility check, and capillary tube adjustment.

1. Donper QD110: The R134a sibling to the S118 series.
2. Embraco GL90AA: A classic 1/4 HP+ LBP workhorse.
3. Secop TLY8.7KK: High-efficiency R134a unit.
4. ZMC GQR12AA: High displacement for heavy-duty cooling.
5. Tecumseh THG1374YS: American standard for 1/4 HP refrigeration.

Expert Field Advice and Notices

• Notice on R600a Safety: Always use a vacuum pump and charging station rated for flammable gases. Never use a torch (brazing) near an open R600a system; use Lokring fittings if possible or ensure the system is completely purged with Nitrogen.
• Capillary Maintenance: When replacing the S118CY1, always replace the filter drier. A clogged drier is the leading cause of premature compressor failure in R600a systems due to the formation of paraffin waxes at low temperatures.
• Winding Integrity: If you suspect a motor failure, check the resistance between the Common, Start, and Run pins. A healthy S118CY1 should show consistent readings without a “short to ground.”
• Mounting: Ensure the rubber grommets are in good condition. The S118CY1’s 11.8cc displacement creates specific harmonic vibrations that must be dampened to prevent copper pipe fatigue.

Benefit for the User

Choosing or replacing the Donper S118CY1 correctly ensures that the appliance maintains its energy rating. Using an undersized compressor will lead to “short-cycling” and high energy bills, while an oversized unit can cause evaporator icing. Following the 1/4 HP LBP specification ensures the evaporator remains at the precise delta-T required for food safety.

Based on the data provided in the nameplate, the refrigerator requires exactly 13 grams of R600a refrigerant.

Technical Specification Table

Compressor Replacements

5 Replacements (Same Gas – R600a):

• Jiaxipera T1110Y
• Danfoss/Secop TLES4KK.3
• Embraco EMX20CLC
• Huayi B43H
• Wanbao ASD43Y

5 Replacements (Other Gas – R134a – Requires Flushing):

• Embraco EMI 30HER
• Jiaxipera ZBS1111cy
• Danfoss TLS3F
• Donper S43CZ
• Cubigel GL45AA

Mbsmpro.com, White Point, WPMR91S, Refrigerator, 1/12 hp, R600a, 13g, 0.50 A, 220-240V 50Hz, LBP, Made in Turkey

The White Point WPMR91S represents the modern standard for compact, energy-efficient refrigeration. Manufactured in Turkey, this unit is specifically designed for domestic cooling applications, utilizing the thermodynamic advantages of R600a (Isobutane). Unlike older systems that used heavy refrigerant loads, this high-efficiency cycle operates with a precision charge of only 13 grams.

Thermodynamics and Efficiency

The WPMR91S is built around a Low Back Pressure (LBP) cycle. With a rated current of 0.50 Amperes, the electrical footprint is remarkably low. The integration of R600a allows the compressor to operate at lower pressures compared to R134a, which reduces mechanical wear on the piston and valves, extending the lifespan of the motor.

Engineering Comparison: R600a vs. R134a

Professional Maintenance Notice

As an expert in the field, I must emphasize that when servicing the WPMR91S, the 13g charge is critical. Because the volume is so small, traditional manifold gauges can trap a significant percentage of the gas in the hoses.

• Scale Precision: Use a digital scale accurate to 1 gram.
• Vacuum: A deep vacuum is mandatory as R600a systems are highly sensitive to moisture and non-condensables.
• Safety: R600a is flammable. Ensure no open flames or sparks are present during the charging process.

Benefits for the End User

The primary benefit of this specific engineering setup is the Isolation Degree IPX4, which provides protection against moisture ingress, making it ideal for various climates. The use of a PTC relay instead of a mechanical start relay further reduces the “click” noise during startup, providing a quieter user experience.

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Excerpt: The White Point WPMR91S is a high-efficiency 91-liter refrigerator utilizing a specialized 13-gram R600a refrigerant charge. Operating at 0.50A, this Turkish-made unit is designed for optimal LBP performance. This guide provides comprehensive technical specifications, compressor cross-references, and engineering insights for professional technicians and hobbyists looking for reliable maintenance data and replacement parts.

Based on the technical data provided for the Evvoli air conditioning unit, here is the professional breakdown, technical table, and SEO-optimized article.

Gas Charge Calculation

To find the precise weight of the refrigerant, we use the Global Warming Potential ($GWP$) formula provided on the label:

The gas charge weight is approximately 1.80 kg (1800 grams).

Technical Specifications Table

5 Compressor replacements (Same Gas: R410A)

1. GMCC PA240X2C-4FT
2. Highly ASD225RK-PA6AG
3. Panasonic 5PS225DAB02
4. Rechi 44R423A
5. LG GP250P

5 Compressor replacements (Other Gas: R22 Compatibility)

Note: Requires flushing system and changing oil/capillary.

1. Panasonic 2K32C225
2. GMCC PH370G2C
3. Copeland ZR28K3-PFV
4. Tecumseh AW5524E
5. Mitsubishi KH197

Mbsmpro.com, Compressor, EVCIS-24K-MD, 2.5 hp, Evvoli, Cooling, R410A, 24000 BTU, 20.0A, 1Ph 220-240V 50Hz, HBP

The Evvoli EVCIS-24K-MD is a high-performance rotary compressor system specifically engineered for split-type air conditioners. Delivering a powerful 24,000 BTU cooling capacity, this unit is built to withstand extreme operating pressures, reaching up to 4.2MPa on the discharge side. Utilizing R410A refrigerant, it meets modern environmental standards while providing superior heat transfer compared to legacy R22 systems.

Performance Dynamics and Comparison

When comparing the EVCIS-24K-MD to standard 18,000 BTU units, the power jump is significant. While an 18K unit typically draws 12-14 Amps, this 24K beast requires a stable 20.0A feed. This makes it ideal for large living spaces or small commercial offices where consistent cooling (and heating at 26,000 BTU) is non-negotiable.

Expert Engineering Insights

• Thermal Efficiency: The unit features an IPX4 resistance class, meaning the outdoor electrical components are protected against splashing water from any direction, crucial for rainy or humid climates.
• Installation Note: Vacuuming the system is not optional. Moisture in an R410A system reacts with POE oil to form acid, which will eventually eat through the copper windings.
• Protection: Due to the 20A draw, ensure the use of a dedicated circuit breaker.

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Excerpt: The Evvoli EVCIS-24K-MD is a robust 2.5 HP rotary compressor designed for 24,000 BTU split-type air conditioners. Running on R410A refrigerant with a 20.0A rated current, it offers high-efficiency cooling and heating (26,000 BTU). This technical guide explores its pressure limits, electrical requirements, and the best replacement compressors for HVAC professionals and field workers.

Yes, this compressor (ZMC EGM66AF) is an excellent fit for a 10-foot refrigerator. It is rated at approximately 1/6 HP, which is the industry standard for domestic fridges in the 10 to 12-foot range.

Mbsmpro.com, Compressor, EGM66AF, 1/6 hp, ZMC, Cooling, R134a, 150 W, 1.1 A, 1Ph 220-240V 50Hz, LBP

Compressor Replacement Options

5 Replacements (Same Gas – R134a):

1. Embraco: EMY65HLC / EMI 70HER
2. Danfoss/Secop: TLS6F
3. Panasonic: QB66C13GAX5
4. Tecumseh: THG1352YGS
5. Huayi: HYE69MTU

5 Replacements (Other Gas – R600a):

Note: Requires full system flush and oil change consideration.

1. ZMC: EGM66AA
2. Embraco: EMX55CLC
3. Secop: TLES6.5KK.3
4. Donper: L72CZ1
5. Jiaxipera: T1114Y

The Engineering Guide to ZMC EGM66AF Performance

In the demanding world of residential cooling, the compressor serves as the mechanical heart of the appliance. The ZMC EGM66AF stands out as a robust 1/6 HP unit, specifically engineered for Low Back Pressure (LBP) applications. This model is a favorite among field engineers due to its Egyptian-made reliability, combining European design standards with local durability.

Technical Efficiency & Motor Design

The EGM66AF utilizes an RSIR motor (Resistive Start, Induction Run). Unlike many modern low-power compressors that use aluminum windings to shave weight, ZMC continues to utilize high-purity copper. This ensures better heat dissipation and reduces the risk of winding burnout during high-ambient-temperature summers.

Comparative Value Analysis

When compared to its peers, the EGM66AF offers a balanced displacement-to-power ratio:

Professional Field Advice & Benefits

• Optimal Environment: This compressor is designed for static cooling. Do not install it in commercial cabinets that require forced-air fan cooling unless the airflow is specifically directed at the compressor body to prevent overheating.
• Vacuum Protocol: R134a systems use POE oil, which is highly sensitive to moisture. A minimum vacuum of 500 microns is essential to prevent “acid” formation inside the capillary tube.
• Filter Drier: Always replace the filter drier when installing a new EGM66AF. A 15g or 20g drier is sufficient for a 10-foot refrigerator setup.

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Excerpt

The ZMC EGM66AF is a high-reliability 1/6 HP compressor designed for Low Back Pressure (LBP) applications in domestic refrigerators ranging from 10 to 12 feet. Utilizing R134a refrigerant and a 6.66cc displacement, this unit features durable copper windings and an RSIR motor, making it a preferred choice for technicians seeking longevity and efficiency.