Mbsmpro.com, Compressor, HYE55YL63, EGM60AF, 1/5 hp, Huayi, ZMC, Cooling, R134a, 220-240V 50Hz, Kiriazi 14 Feet

In the demanding world of domestic refrigeration, the choice of a compressor determines the longevity and efficiency of the appliance. Two of the most prominent contenders for the 14-foot Kiriazi and similar medium-sized refrigerators are the Huayi HYE55YL63 and the ZMC EGM60AF. Both are engineered for Low Back Pressure (LBP) applications using R134a gas, but they offer distinct technical nuances that every field technician and engineer should understand.

The Huayi HYE55YL63 is a compact powerhouse with a 5.5cc displacement, optimized for balanced energy consumption. In contrast, the ZMC EGM60AF is often viewed as a slightly more robust alternative, providing a higher cooling capacity and a larger oil reservoir, which can be advantageous in high-ambient temperature environments. Understanding the intersection of these two models is essential for achieving “first-time-right” repairs.

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Comprehensive Technical Comparison Table

Feature	Huayi HYE55YL63	ZMC EGM60AF
Model	HYE55YL63	EGM60AF
Utilisation (LBP)	LBP (Low Back Pressure)	LBP (Low Back Pressure)
Horsepower (HP)	1/5 HP	1/5 HP (High Efficiency)
Refrigerant Type	R134a	R134a
Cooling Capacity (-23.3°C)	155 W (529 BTU/h)	182 W (621 BTU/h)
Displacement	5.5 cm³	6.0 cm³
Oil Type and Quantity	POE / 200 cm³	Ester / 270 cm³
Motor Type	RSCR	RSIR / RSCR
Power Supply	220-240V / 50Hz	220-240V / 50Hz
LRA (Locked Rotor Amps)	6.5 A	11.72 A
Weight	7.9 kg	8.58 kg
Winding Material	Copper	Copper

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Performance Dynamics: Why the EGM60AF Packs a Punch

While both compressors are rated at 1/5 HP, the ZMC EGM60AF features a larger cylinder volume of 6.0cc compared to the 5.5cc of the Huayi model. This translates directly into a higher mass flow of refrigerant.

Key Differences in Field Performance:

1. Pull-Down Time: The EGM60AF typically achieves the set-point temperature faster in a 14-foot cabinet due to its higher BTU/h output.
2. Thermal Stability: With a 270 cm³ oil charge, the ZMC model offers superior lubrication and cooling for the internal mechanical parts, making it more resilient during long run cycles in summer.
3. Efficiency: The Huayi HYE55YL63 often runs at a lower amperage (approx. 0.7A) compared to the EGM60AF, making it the preferred choice for energy-sensitive applications where a lighter load is sufficient.

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Compressor Cross-Reference & Replacement Guide

For professionals looking to swap these units, the following models provide compatible cooling curves and physical footprints.

Top 5 Replacements (R134a Gas)

1. Embraco: EMT55HLP (1/5 HP – Standard)
2. Secop / Danfoss: TLES5.7FT.3 (High efficiency)
3. Jiaxipera: N1112GZ (Standard Chinese replacement)
4. Cubigel: GL60AA (Direct equivalent to EGM60AF)
5. Tecumseh: THB1350YS (Reliable performance)

Top 5 Replacements (Alternative R600a Gas)

Important: Only use these if converting the entire system including capillary and dryer.

1. Huayi: HYE60MT
2. Embraco: EMX55CLC
3. ZMC: EGL60AF (R600a version)
4. Secop: TLES5.7KK.3
5. Donper: S65CY

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Expert Recommendations for the Field

As a field engineer who has handled hundreds of Kiriazi 14-foot units, I strongly advise the following during installation:

• Capillary Matching: If upgrading from a 5.5cc to a 6.0cc compressor, ensure your capillary tube is not restricted. A slight increase in capacity may lead to higher discharge pressures if the condenser is not kept clean.
• Capacitor Utility: The Huayi model performs best with a 3µF to 5µF run capacitor. This stabilizes the motor torque and protects the windings from “stalling” during hot restarts.
• The Vacuum Rule: R134a systems are highly sensitive to moisture. Always pull a vacuum below 500 microns to prevent the POE/Ester oil from turning acidic, which will eventually eat through the copper windings.

Focus Keyphrase: Huayi HYE55YL63 vs ZMC EGM60AF Compressor Review

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Slug: hye55yl63-vs-egm60af-compressor-comparison

Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Huayi, HYE55YL63, ZMC, EGM60AF, Compressor, R134a, 1/5 HP, Kiriazi 14ft, Embraco EMT55HLP, Secop TLES5.7FT.3, Jiaxipera N1112GZ, Refrigerator Repair, LBP.

Excerpt: The Huayi HYE55YL63 and ZMC EGM60AF are two industry-standard 1/5 HP compressors used in domestic refrigerators. While both utilize R134a refrigerant, they differ in displacement and oil capacity. This technical review compares their performance curves and cooling capacities to help technicians select the ideal replacement for Kiriazi and other 14-foot refrigerators.

Compresseur Réfrigérateur DONPER

Référence: K270CZ1R134A 1/3HP

DONPER Refrigerator Compressor

Référence: L58CZ1R134A 1/6HP

DONPERCompresseur Réfrigérateur

Référence: L65CZ1R134A 1/5HP

DONPER Refrigerator Compressor

Référence: L72CZ1R134A 1/4HP

DONPER Refrigerator Compressor

K270CZ1 R134A 1/3HP

DONPER Refrigerator Compressor

K375CZ1R134A 1/2HP

Mbsmpro.com, Compressor, Donper, R134a, 1/6 hp to 1/2 hp, K and L Series, Cooling, Technical Data

In the HVAC and refrigeration industry, the Donper brand has become a synonymous name for reliability and cost-effective performance. Specializing in hermetic reciprocating technology, Donper’s R134a lineup—specifically the L-series and K-series—covers the vast majority of domestic and light commercial needs. From a small 1/6 HP refrigerator to a robust 1/2 HP commercial chest freezer, these compressors are engineered to handle varying thermal loads with consistent efficiency.

As a field technician or engineer, selecting the correct replacement or designing a system requires more than just knowing the horsepower. It requires a deep dive into displacement, motor torque, and winding characteristics. Below, we provide the definitive technical breakdown of the most common Donper R134a models.

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Comparative Analysis: The Donper R134a Series

The transition from the L-series to the K-series marks a shift from residential “static” cooling to more demanding commercial “forced-air” or high-capacity “static” cooling. While the L58CZ1 is the quiet heart of a kitchen fridge, the K375CZ1 is the workhorse of the supermarket display.

Model	HP	Displacement (cc)	Cooling Cap (W)	Efficiency (W/W)	Motor Type
L58CZ1	1/6	5.8	140	1.15	RSIR
L65CZ1	1/5	6.5	165	1.20	RSIR
L72CZ1	1/4	7.2	195	1.25	RSIR/RSCR
K270CZ1	1/3	9.5	270	1.30	RSCR
K375CZ1	1/2	12.5	375	1.35	CSIR

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Detailed Technical Data Sheets

Below are the exhaustive specifications for each model mentioned. This data is critical for calculating capillary tube lengths and ensuring electrical compatibility.

1. Donper L-Series (Domestic Focus)

Feature	L58CZ1 (1/6 HP)	L65CZ1 (1/5 HP)	L72CZ1 (1/4 HP)
Utilisation	LBP	LBP	LBP
Domaine	Cooling / Freezing	Cooling / Freezing	Cooling / Freezing
Oil Type / Qty	POE – 180ml	POE – 200ml	POE – 210ml
Power Supply	220-240V 50Hz	220-240V 50Hz	220-240V 50Hz
Cooling Capacity	478 BTU/h	563 BTU/h	665 BTU/h
Motor Type	RSIR	RSIR	RSIR/RSCR
Winding Material	Copper	Copper	Copper
Pressure Charge	100-120 PSI (Static)	100-120 PSI (Static)	110-130 PSI (Static)
Capillary (Typical)	0.028″ x 3m	0.031″ x 3m	0.036″ x 3m
Fan Required	No (Static)	No (Static)	Optional
LRA (Amps)	6.5 A	8.0 A	9.5 A
Capacitor	N/A	N/A	4-5 µF (if RSCR)

2. Donper K-Series (Commercial Focus)

Feature	K270CZ1 (1/3 HP)	K375CZ1 (1/2 HP)
Utilisation	LBP / MBP	LBP / MBP
Domaine	Large Freezing	Commercial Freezing
Oil Type / Qty	POE – 250ml	POE – 300ml
Power Supply	220-240V 50Hz	220-240V 50Hz
Cooling Capacity	921 BTU/h	1280 BTU/h
Motor Type	RSCR	CSIR (Start Cap)
Winding Material	Copper	High-Temp Copper
Pressure Charge	120-140 PSI (Static)	140-160 PSI (Static)
Capillary (Typical)	0.042″ x 2.5m	0.050″ x 2.5m
Fan Required	Recommended	Yes (Forced Air)
LRA (Amps)	12.0 A	18.0 A
Capacitor	6 µF (Run)	60-80 µF (Start)

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Cross-Reference & Replacement Guide

When the exact Donper model is unavailable, the following industry-standard alternatives can be utilized. Ensure you verify the mounting foot dimensions as they may vary slightly between brands.

5 Standard Replacements (R134a)

1. Embraco: FFI10HAK (for 1/3 HP) / FFI12HBX (for 1/2 HP)
2. Secop/Danfoss: TLES8.7KK.3 / NL11F
3. Tecumseh: THB1390Y / AEA3440Y
4. Huayi: HYE90MT / HYE121MT
5. Jiaxipera: ND1114Y / NT1116Y

5 Alternative Gas Replacements (System Flush Required)

1. Donper (R600a): D65CY1 (for 1/5 HP applications)
2. Secop (R290): NLE11KK (High Efficiency)
3. Embraco (R600a): EMX3115Y
4. Cubigel (R290): GLY12RA
5. LG (R600a): BSA075LHE

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Engineering Best Practices & Maintenance

Expert Advice: The K375CZ1 (1/2 HP) generates significant heat during the compression cycle. If installing this in a confined space, a condenser fan is non-negotiable. Lack of airflow will lead to oil carbonization and premature valve failure.

• Vacuuming: Always pull a vacuum down to 500 microns. R134a uses POE oil, which is highly hygroscopic (absorbs moisture). Moisture in the system leads to acid formation that eats through copper windings.
• Capillary Match: When moving from a 1/6 HP to a 1/4 HP compressor, you must resize the capillary tube. Using an undersized capillary will cause high head pressure and trip the thermal overload protector.
• Relay Testing: If the compressor fails to start but hums, check the PTC relay or the Start Capacitor (on 1/2 HP models). Donper relays are standardized, but always match the Ohm resistance of the original part.

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Excerpt: Donper has established itself as a powerhouse in the hermetic compressor industry, providing reliable cooling solutions for domestic and light commercial applications. This technical analysis explores the R134a L and K series, ranging from 1/6 HP to 1/2 HP, offering engineers and technicians the critical data needed for successful repairs and system optimizations.

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Donper Series – R134a Refrigerant (LBP, 220V/50Hz)

These models feature aluminum windings (Al-wire) and are designed for Low Back Pressure (LBP) applications.

Model	Power (HP)	Cooling Capacity (W)	Power Supply	Wire Type
S53CW1	1/8 HP	135W	220V/50Hz	Aluminum
L58CZ1	1/6 HP	145W	220V/50Hz	Aluminum
L65CZ1	1/5 HP	170W	220V/50Hz	Aluminum
L72CZ1	1/4 HP	195W	220V/50Hz	Aluminum
L76CZ1	1/4 HP+	215W	220V/50Hz	Aluminum
K230CZ1	1/4 HP+	230W	220V/50Hz	Aluminum
K270CZ1	1/3 HP	270W	220V/50Hz	Aluminum
K325CZ1	1/3 HP	325W	220V/50Hz	Aluminum

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Donper Series – R600a Refrigerant (LBP, 220V/50Hz)

Models optimized for Isobutane (R600a), also using aluminum motor windings.

Model	Power (HP)	Cooling Capacity (W)	Power Supply	Wire Type
A120CY1T	1/8 HP	118W	220V/50Hz	Aluminum
A145CY1A	1/6 HP	138W	220V/50Hz	Aluminum
S100CY1	1/5 HP	168W	220V/50Hz	Aluminum
S118CY1	1/4 HP	200W	220V/50Hz	Aluminum
L140CY1	1/4 HP+	235W	220V/50Hz	Aluminum

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Technical Definitions

• LBP (Low Back Pressure): Optimized for low evaporating temperatures (typically -35°C to -10°C), making them ideal for household freezers and refrigerators.
• Cooling Capacity (W): Measured in Watts, representing the amount of heat the compressor can remove per hour under standard test conditions (ASHRAE).
• Al-wire (Aluminum Wire): A cost-effective alternative to copper. While lighter, it requires specific handling during repair and is generally found in “entry-level” or standard domestic units.

Mbsmpro.com, Compressor, Matsushita, D77C18RAX5, 1/4 hp, Panasonic, Cooling, R134a, 195 W, 1.4 A, 1Ph 220V 50Hz, LBP, RSIR, −35°C to −10°C, Household Refrigerator

The refrigeration industry has seen many legends, but few names carry as much weight in the workshop as Matsushita—the manufacturing powerhouse now known globally as Panasonic. Among their most reliable workhorses is the D77C18RAX5 compressor. This hermetic reciprocating unit has been the backbone of thousands of residential refrigerators and commercial chest freezers, prized for its “set it and forget it” reliability.

Engineering Excellence: The D77C18RAX5 Architecture

The D77C18RAX5 is a Low Back Pressure (LBP) compressor designed specifically to handle the rigors of deep freezing and standard refrigeration. Built in Malaysia under strict quality controls, this model utilizes a 7.7cc displacement to move R134a refrigerant efficiently through the system.

From an engineering perspective, the “D77” series is celebrated for its high volumetric efficiency and robust thermal protection. Unlike modern inverter compressors that require complex electronic control boards, the D77C18RAX5 relies on a tried-and-true RSIR (Resistive Start, Inductive Run) motor. This makes it exceptionally resilient to voltage fluctuations often found in older residential grids.

Technical Specifications Table

Feature	Specification
Model	D77C18RAX5
Manufacturer	Matsushita (Panasonic)
Refrigerant Type	R134a
Horsepower (HP)	1/4 HP
Displacement	7.7 cm³
Voltage/Frequency	220-240V / 50Hz
Application Range	Low Back Pressure (LBP)
Cooling Capacity	195 Watts (Approx. 665 BTU/h)
Motor Type	RSIR
Starting Current (LRA)	11.5 A
Running Current	1.3 – 1.5 A
Oil Type	POE (Polyolester)
Cooling Method	Static (Natural Convection)

Performance Comparison: R134a vs. R600a Variants

In the modern landscape, there is a push toward R600a (isobutane). However, the D77C18RAX5 remains a critical component for repairs because of its specific pressure-temperature relationship. When compared to an R600a equivalent, the D77 series offers higher mass flow rates, which is essential for older cabinet designs with smaller evaporator surface areas.

Metric	Matsushita D77C18RAX5 (R134a)	Typical R600a 1/4 HP Equivalent
Displacement	7.7cc	11.0cc to 12.0cc
Pressure Levels	Higher Discharge Pressures	Lower (Vacuum-prone)
Reliability	Proven 15-20 year lifespan	High (but sensitive to moisture)
Lubrication	POE Oil (Hygroscopic)	Mineral Oil

Expert Insight: Field Service Tips

When replacing this unit, field technicians must prioritize the evacuation process. Since the D77C18RAX5 uses POE oil, any moisture left in the system can react to form acids that eat away at the motor windings.

1. Always replace the Filter Drier: Never install a new D77 without a fresh XH-9 or universal drier.
2. Verify the Capacitor: While most are RSIR, some variations use a starting capacitor to assist in high-ambient starts. Check the relay housing before installation.
3. Heat Management: Ensure the condenser coils are cleaned. The D77 is thermally protected, but frequent cycling due to heat buildup will eventually degrade the internal valves.

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Detailed Compressor Data Sheet

Model	D77C18RAX5
Utilisation (mbp/hbp/lbp)	LBP
Domaine (Freezing/Cooling)	Domestic Freezing / Refrigerator Cooling
Oil Type and quantity	POE 230ml
Horsepower (HP)	1/4 HP
Refrigerant Type	R134a
Power Supply	220V-240V ~ 50Hz
Cooling Capacity BTU	665 BTU/h
Motor Type	RSIR
Displacement	7.7 cc
Winding Material	Copper
Pression Charge	Low side: 0.5 – 2 PSI (Running)
Capillary Recommendation	0.031″ or 0.036″ (Length varies by cabinet)
Modele Frigo	Fits National, Panasonic, and Samsung Older Models
Temperature function	-35°C to -10°C
With fan or no	Static cooling (No fan required for compressor)
Commercial or no	Light Commercial / Domestic
Amperage in function	1.4 A
LRA (Locked Rotor Amps)	11.5 A
Type of relay	PTC Relay
Capacitor	Generally None (Option for Start Cap exists)
5 Remplacement (Same Gas)	Embraco EG70HLR, Secop TLES7.5KK.3, Donper QD75, LG MA72LAEG, ACC GVY75AA
5 Remplacement (Other Gas)	Secop TLY8.7KK (R600a), Embraco EMX70CLC (R600a), Cubigel GL80AA (R134a/R600a conversion), Jiaxipera NT1114Y, Nidec TT1114GY

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Benefits of the D77C18RAX5

• Thermal Protection: Built-in overload protector prevents motor burnout during brownouts.
• Low Vibration: The internal spring mounting system is designed for ultra-quiet household operation.
• Global Standard: Parts like relays and overloads are universally available, making maintenance simple anywhere in the world.

Engineering Notice: If you find this compressor running hot but not cooling, check the discharge pressure. These units are extremely durable, but if the valves are bypassed due to liquid slugging, the efficiency drops significantly. Always ensure the refrigerant charge is weighed in according to the appliance nameplate.

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Focus Keyphrase: Matsushita D77C18RAX5 Compressor 1/4 HP R134a Specifications and Replacement Guide

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Excerpt: The Matsushita D77C18RAX5 is a legendary 1/4 HP refrigerator compressor optimized for R134a refrigerant. Known for its robust RSIR motor and 7.7cc displacement, it delivers 195W of cooling power for domestic freezers and refrigerators. This guide provides full technical data, wiring details, and the best professional cross-reference replacements for modern refrigeration repair.

Focus Keyphrase: Huayi HYE69Y63 Compressor 1/5 HP R134a LBP Technical Specifications and Professional Cross-Reference Guide for Refrigerator Repair

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Excerpt: The Huayi HYE69Y63 is a highly efficient hermetic reciprocating compressor designed for low back pressure applications using R134a refrigerant. With a 1/5 HP rating and dual-frequency compatibility (50/60Hz), this motor is a cornerstone for domestic refrigerators and freezers. This comprehensive guide covers technical datasheets, electrical wiring, and professional replacement strategies for global cooling systems.

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Mastering Domestic Refrigeration: The Technical Profile of the Huayi HYE69Y63 Compressor

In the precision-driven world of refrigeration engineering, the Huayi HYE69Y63 stands as a testament to reliable, small-scale thermal management. As a 1/5 horsepower unit optimized for Low Back Pressure (LBP) cycles, this compressor is a frequent choice for manufacturers of domestic refrigerators and light-duty freezers. Its ability to operate across both 50Hz and 60Hz frequencies makes it a versatile global component, capable of maintaining sub-zero temperatures with impressive volumetric efficiency.

Engineering Design and Performance

The HYE69Y63 utilizes a hermetic reciprocating mechanism, engineered to move R134a refrigerant with minimal mechanical friction. In the field, technicians value this model for its thermal protection systems and robust winding material, which ensure longevity even in high-ambient temperature environments. The “HYE” series from Huayi is recognized for its low noise profile and vibration-damping housing, making it ideal for residential kitchen appliances.

Technical Data and Specifications Table

Feature	Detailed Specification
Model	HYE69Y63
Utilisation (mbp/hbp/lbp)	LBP (Low Back Pressure)
Domaine (Freezing/Cooling)	Freezing / Deep Cold Storage
Oil Type and Quantity	POE (Ester Oil) – Approx. 180 ml
Horsepower (HP)	1/5 HP
Refrigerant Type	R134a
Power Supply	220-240VAC / 50-60Hz / 1 Phase
Cooling Capacity (ASHRAE)	168 Watts / 573 BTU/h (@ -23.3°C)
Motor Type	RSIR (Resistive Start – Inductive Run)
Displacement	6.9 cm³
Winding Material	High-Grade Copper
Pressure Charge	0.8 to 1.3 Bar (Evaporating Pressure)
Capillary Recommendation	0.031″ ID (Length dependent on cabinet)
Refrigerator Brands	Haier, Whirlpool, Midea, Hisense
Temperature Function	-35°C to -10°C (-31°F to 14°F)
Cooling System	Static (Natural Convection)
Commercial Class	Domestic / Residential
Amperage (FLA)	1.1 A to 1.3 A
LRA (Locked Rotor Amps)	12.0 A
Type of Relay	PTC (Positive Temperature Coefficient)
Capacitor Requirement	Generally none (Standard RSIR configuration)

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Electrical Wiring Schema (RSIR Configuration)

Correct electrical connection is paramount for the safety of the hermetic motor. The terminal block of the HYE69Y63 follows the standard triangular pin layout:

Common (C): Located at the top of the triangle. This connects to the line supply through the Thermal Overload Protector.
Main/Run (M): Located at the bottom right. This winding remains energized throughout the cooling cycle.
Start (S): Located at the bottom left. This winding is energized momentarily via the PTC relay to initiate rotation.

Technician’s Insight: If the compressor fails to start but hums, check the resistance between C-M and C-S. A healthy motor will show a combined resistance across S-M that equals the sum of the two individual readings.

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Comparative Performance Analysis

When comparing the HYE69Y63 against its industry peers, we see a focus on balancing displacement with energy consumption.

Metric	Huayi HYE69Y63 (R134a)	Standard 1/5 HP (R600a Equivalent)
Displacement	6.9 cm³	10.2 cm³
Operating Pressure	Positive (Standard)	Low / Near-Vacuum
Efficiency (COP)	1.30 W/W	1.50 W/W
Gas Charge Weight	Moderate (~120g)	Low (~50g)

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Professional Replacement Cross-Reference

Finding a suitable replacement requires matching the BTU/h capacity and the displacement as closely as possible to maintain the refrigerator’s original duty cycle.

5 Compressor Replacements (R134a – Same Gas):

1. Embraco: EMT55HLP (High performance, near-identical BTU)
2. ACC / Cubigel: GL70AA (Robust European alternative)
3. GMCC: PE75H1C (Slightly higher displacement, very reliable)
4. Secop (Danfoss): PL50F (Compact design for limited spaces)
5. Tecumseh: FFI6HAK (Standard American replacement)

5 Compressor Replacements (R600a – Different Gas):
Note: Converting from R134a to R600a requires a complete system flush, oil replacement, and potentially a capillary tube adjustment.

1. TEE: NTU170MT
2. Cubigel: HMK12AA
3. Secop: HTK12AA
4. Huayi: HYB12MHU
5. Jiaxipera: NT1114Y

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Field Engineering Advice and Notices

• Vacuum Standards: Because R134a systems use POE oil, they are highly sensitive to moisture. A deep vacuum of at least 500 microns is mandatory. Failure to achieve this will lead to acid formation, which destroys the motor windings over time.
• Thermal Protection: If the compressor “clicks” off frequently, ensure the condenser coils are clean. Static-cooled compressors like the HYE69Y63 rely on natural convection; dust buildup can cause the internal thermal protector to trip prematurely.
• Start Components: Always replace the PTC relay and the overload protector when installing a new compressor. A fatigued relay can cause the start winding to stay energized too long, leading to a catastrophic burnout of the new unit.
• Charging by Weight: For R134a, always charge using a digital scale to the exact weight specified on the refrigerator’s nameplate. Charging by “pressure feel” often leads to overcharging, which increases the stress on the 1/5 HP motor.

Conclusion and Practical Benefits

The Huayi HYE69Y63 is a resilient, mid-range compressor that provides a stable cooling solution for millions of households worldwide. For the engineer, it represents a standard “plug-and-play” solution for a wide variety of refrigeration brands. Its dual-frequency capability and high copper-content windings make it an exceptionally forgiving unit in regions where power grid stability may fluctuate.

Focus keyphrase: GMCC PE75H1C Compressor 1/4 HP R134a LBP Technical Specifications Wiring Diagram and Replacement Cross-Reference Guide

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Meta description: Professional technical analysis of the GMCC PE75H1C compressor. High-efficiency 1/4 HP LBP unit for R134a refrigeration. View wiring schemas, performance tables, and compatible replacements.

Slug: gmcc-pe75h1c-compressor-r134a-1-4-hp-lbp-specs

Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, GMCC, PE75H1C, R134a, 1/4 HP, LBP, Refrigerator Compressor, HVAC, GL90AA, EMT6170Z, FFI7.5HAK, NL7F, NTU170MT, HMK12AA, HTK12AA, HYB12MHU, NT1114Y

Excerpt: The GMCC PE75H1C is a robust hermetic reciprocating compressor engineered for low back pressure applications using R134a refrigerant. Operating at 220-240V 50Hz, this 1/4 HP motor provides a cooling capacity of approximately 185W. This article provides technical datasheets, electrical wiring schemas, and professional cross-reference guides for global refrigeration maintenance and engineering.

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Engineering Excellence: The GMCC PE75H1C Hermetic Compressor for R134a Systems

In the world of thermal management and domestic refrigeration, the GMCC PE75H1C stands as a benchmark for reliability and volumetric efficiency. Manufactured by Anhui Meizhi Compressor Co., Ltd (a Midea Group venture), this unit is a staple in high-performance household refrigerators and chest freezers. As an engineer who has worked extensively on the field, I can attest that the “PE” series represents a balance between compact mechanical design and thermal endurance.

This compressor is designed for Low Back Pressure (LBP) cycles, making it ideal for freezing applications where evaporation temperatures drop significantly below zero. Utilizing R134a, it remains a common choice for technicians servicing existing infrastructure where synthetic oils are standard.

Detailed Technical Specifications

Feature	Specification
Model	PE75H1C
Utilisation (mbp/hbp/lbp)	LBP (Low Back Pressure)
Domaine (Freezing/Cooling)	Freezing / Deep Cold
Oil Type and quantity	POE (Ester Oil) – Approx. 180 ml
Horsepower (HP)	1/4 HP
Refrigerant Type	R134a
Power Supply	220-240V ~ 50Hz / 1 Phase
Cooling Capacity BTU	631 BTU/h (approx. 185W)
Motor Type	RSIR (Resistive Start – Inductive Run)
Displacement	7.5 cm³
Winding Material	High-Grade Copper
Pression Charge	0.8 to 1.3 Bar (Low side)
Capillary	0.031″ or 0.8mm ID
Refrigerator Models	Midea, Toshiba, Samsung, various local brands
Temperature function	-35°C to -10°C
With fan or no	Static Cooling (No fan required)
Commercial or no	Domestic / Light Commercial
Amperage in function	0.9 A to 1.2 A
LRA (Locked Rotor Amps)	11.0 A
Type of relay	PTC Starter
Capacitor or no	No (Standard RSIR)

Electrical Wiring Schema (RSIR Logic)

For field technicians, identifying the terminal pins is critical to prevent accidental motor burnout. The GMCC PE75H1C follows the standard triangular layout:

1. C (Common): The apex pin. Connected to the line voltage through the internal Thermal Overload Protector.
2. M (Main/Run): Bottom-right pin. Connected to the Neutral line.
3. S (Start): Bottom-left pin. Connected via the PTC (Positive Temperature Coefficient) relay.

Operational Logic: Upon startup, the PTC relay allows current to flow to the Start winding. As the PTC heats up, its resistance increases dramatically, effectively cutting off the Start winding once the motor reaches sufficient RPM, leaving only the Main winding energized.

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Performance Comparison: GMCC PE75H1C vs. Industry Standards

When comparing the PE75H1C to other compressors in the same class, we look at the Coefficient of Performance (COP) and displacement efficiency.

Metric	GMCC PE75H1C (R134a)	Equivalent R600a Model
Gas Displacement	7.5 cm³	11.2 cm³
Efficiency (W/W)	1.25	1.45
Charge Weight	Standard (120g – 150g)	Low (40g – 60g)
Pressure Delta	Moderate	Low

Professional Replacement Cross-Reference

Choosing the right replacement is vital for maintaining the refrigerator’s original thermal balance.

5 Compressor replacements in same value (R134a):

1. Zem/ACC: GL90AA
2. Embraco: EMT6170Z or FFI 7.5HAK
3. Secop (Danfoss): NL7F
4. Huayi: AE1380Y
5. Tecumseh: THB1375YSS

5 Compressor replacements in same value (R600a Conversion):
Notice: Conversion requires a full system flush and capillary adjustment.

1. TEE: NTU170MT
2. Cubigel: HMK12AA
3. Secop: HTK12AA
4. Huayi: HYB12MHU
5. Jiaxipera: NT1114Y

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Engineering Advice and Best Practices

• Thermal Protection: The “Thermally Protected” label indicates an internal bimetallic switch. If the compressor stops and feels extremely hot, do not force a restart. Let it cool for 30 minutes. Check the condenser coils for dust; poor airflow is the primary killer of the PE75H1C.
• Oil Compatibility: This unit uses POE (Polyolester) oil. Never mix mineral oil (MO) with this system. If you are retrofitting, ensure the system is flushed with nitrogen to remove moisture, as POE oil is highly hygroscopic.
• Vacuum Standards: For R134a systems, reaching a vacuum of at least 500 microns is non-negotiable. Residual moisture reacts with R134a and POE oil to create acid, which will eventually dissolve the copper windings.
• Startup Amperage: If the compressor draws high amperage (above 5A) and trips the protector, first replace the PTC relay. These components degrade over time and are a common point of failure before the motor itself fails.

Benefits of the GMCC PE75H1C

The primary benefit of this model is its durability in tropical climates. The motor is wound with high-quality copper that resists heat better than aluminum alternatives. Its compact footprint also makes it versatile for a wide range of refrigerator brands, simplifying inventory for HVAC professionals.

Focus Keyphrase: Konor GPY16AF R134a Compressor Technical Specifications and Professional Replacement Guide

SEO Title: Mbsmpro.com, Compressor, Konor, GPY16AF, 1/2 HP, R134a, LBP, 220-240V 50Hz, Freezing, Technical Data

Meta Description: Explore the full technical breakdown of the Konor GPY16AF compressor. This 1/2 HP R134a unit is ideal for LBP freezing applications. Includes specs, wiring, and cross-reference.

Slug: konor-gpy16af-compressor-r134a-lbp-specs

Tags: Konor, GPY16AF, R134a, 1/2 HP, LBP, Compressor, Freezing, Refrigeration, Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm

Excerpt: The Konor GPY16AF is a robust hermetic reciprocating compressor engineered for low back pressure applications using R134a refrigerant. With a displacement of 16.2 cm³, this 1/2 HP unit is a staple in commercial freezers and large refrigerators. This guide provides detailed technical data, wiring diagrams, and professional cross-reference options for field technicians.

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Mbsmpro.com, Compressor, Konor, GPY16AF, 1/2 HP, R134a, LBP, 220-240V 50Hz

The refrigeration industry relies on precision and durability, and the Konor GPY series stands out as a high-performance solution for low-temperature requirements. Specifically, the GPY16AF model is a hermetic reciprocating compressor designed to meet the rigorous demands of deep-freezing units. Utilizing R134a refrigerant, this compressor balances thermal efficiency with mechanical reliability, making it a preferred choice for large-capacity domestic appliances and light commercial units.

Technical Specification Table

Feature	Specification
Model	GPY16AF
Utilisation	LBP (Low Back Pressure)
Domaine	Freezing / Deep Cold Storage
Oil Type and Quantity	POE Oil / 350 ml
Horsepower (HP)	1/2 HP
Refrigerant Type	R134a
Power Supply	220-240V / 50Hz / 1 Phase
Cooling Capacity BTU	Approximately 1540 BTU/h (at -23.3°C ASHRAE)
Motor Type	CSIR (Capacitor Start – Induction Run)
Displacement	16.2 cm³
Winding Material	High-Grade Copper
Pressure Charge	Suction: 0.5 – 5 PSI (Normal LBP range)
Capillary Recommendation	0.042″ x 10ft (Variable per load)
Application Units	Large Chest Freezers, Vertical Freezers
Temperature Function	-35°C to -15°C
Fan Requirement	Static or Forced Air (Fan recommended for high ambient)
Commercial Use	Yes, Light Commercial / Domestic
Amperage (FLA)	2.5 A – 2.8 A
LRA (Locked Rotor Amps)	17 A
Type of Relay	Potential or Electromagnetic Relay
Capacitor Requirement	Starting Capacitor (approx. 60-80 µF)

Engineering Perspective: Performance Analysis

From a field worker’s perspective, the GPY16AF is recognized for its high volumetric efficiency. The 16.2 cm³ displacement allows for rapid pulldown times in large evaporation systems. Unlike smaller residential compressors, this unit features reinforced copper windings that handle the high torque required during the startup phase of a heavy refrigeration cycle.

When comparing the Konor GPY16AF to other market leaders, we notice a distinct advantage in its thermal management. The internal motor protection is calibrated to prevent burnout during voltage fluctuations, a common issue in many regions.

Cross-Reference and Replacement Models

Finding an exact match for a compressor in the field is not always possible. Below are professional alternatives categorized by refrigerant type.

Table: Top 5 Replacements (Same Refrigerant – R134a)

Brand	Model	HP	Displacement
Embraco	FFI12HBX	1/2 HP	11.14 cm³
Danfoss/Secop	SC15G	1/2 HP	15.28 cm³
Tecumseh	AE2415Y	1/2 HP	12.50 cm³
Kulthorn	AE7440Y	1/2 HP	14.50 cm³
Huayi	HYE15YG	1/2 HP	15.00 cm³

Table: Top 5 Replacements (Alternative Refrigerant – R404a/R600a)

Brand	Model	Gas Type	Note
Embraco	NEK2150GK	R404a	Requires TXV adjustment
Secop	SC18CL	R404a	High cooling capacity
Jiaxipera	VNX1116Y	R600a	High efficiency / Low noise
Nidec	GPY12RAA	R600a	Eco-friendly alternative
Danfoss	NL11MF	R134a/R404a	Multi-refrigerant capable

Electrical Wiring Schema (General CSIR)

codeText

[Neutral] ---------------- (Common Terminal)
                                      |
                                  [Winding]
                                      |
       [Live] -----[Overload]----[Relay]---- (Main Winding)
                                    |
                                [Start Cap]
                                    |
                                (Start Winding)

Installation Best Practices and Field Tips

1. Vacuum Procedure: Since the GPY16AF uses POE oil, it is extremely hygroscopic. A deep vacuum of at least 500 microns is mandatory to prevent acid formation within the system.
2. Filter Drier Replacement: Never reuse a filter drier. When installing this 1/2 HP unit, ensure a high-capacity XH-9 molecular sieve drier is used to handle the R134a molecular structure.
3. Oil Management: If the system suffered a motor burnout previously, perform a flush. POE oil will trap contaminants more aggressively than mineral oil.
4. Capillary Sizing: Ensure the capillary tube is not restricted. A 1/2 HP compressor generates significant head pressure; a restricted capillary will lead to premature valve failure.

Professional Benefits of the Konor GPY16AF

• Energy Efficiency: Optimized for lower power consumption despite high torque.
• Low Noise Profile: Advanced shell design dampens mechanical vibration.
• Durability: Built to withstand continuous operation in tropical climates.

Notice: Always verify the starting capacitor value on the specific unit label before replacement. Using an undersized capacitor can lead to starting failures, while an oversized one may overheat the start winding.

Mbsmpro, Compressor, GS91AZ, 1/3 HP, R134a, 9.1 cc, 220V 50Hz, LBP, Cooling & Freezing

In the demanding world of domestic and light commercial refrigeration, reliability and heat-exchange efficiency are the primary benchmarks for selecting a hermetic compressor. The Excellent Compressor GS91AZ has established itself as a robust solution for engineers and technicians looking for a durable replacement in various cooling appliances. Designed specifically for Low Back Pressure (LBP) applications, this reciprocating unit balances power and energy savings, making it a staple in the high-performance cooling sector.

The core strength of the GS91AZ lies in its internal construction. Unlike cheaper alternatives that might use aluminum-clad wiring, this model is built with 100% high-grade copper windings. This structural choice ensures superior thermal conductivity and a longer lifespan, significantly reducing the risk of winding burnout during prolonged operation or high ambient temperature conditions. With a displacement of 9.1 cc, it provides the necessary torque to maintain stable pressures in medium-to-large-sized household refrigerators and vertical freezers.

Technical Specifications and Performance Data

The following table provides a detailed breakdown of the characteristic features of the GS91AZ model, ensuring field workers have the precise data required for installation and repair.

Parameter	Technical Specification
Model	GS91AZ
Utilization (LBP/MBP/HBP)	LBP (Low Back Pressure)
Primary Domain	Freezing and Deep Cooling
Oil Type and Quantity	POE (Polyolester) / 280 ml – 300 ml
Horsepower (HP)	1/3 HP
Refrigerant Type	R134a
Power Supply	220V – 240V / 50Hz
Cooling Capacity (BTU/h)	Approx. 780 – 820 BTU/h (at ASHRAE LBP)
Motor Type	RSIR (Resistance Start – Induction Run)
Displacement	9.1 cc
Winding Material	100% High-Conductivity Copper
Pressure Charge	Suction: 0.5 to 1.5 bar (Application Dependent)
Capillary Tube Size	0.036″ to 0.042″ (Length varies by appliance)
Compatible Appliances	Large 2-door Fridges, Chest Freezers, Water Coolers
Function Temperature	-35°C to -10°C
Cooling Method	Static or Fan Assisted (depending on housing)
Market Segment	Professional / Light Commercial
Operational Amperage	1.1 A to 1.4 A
LRA (Locked Rotor Amps)	14.5 A to 16 A
Starting Relay Type	PTC Relay or Current Relay
Capacitor Requirement	Usually none (RSIR), optional start cap for high torque

Compressor Replacement Cross-Reference

Choosing the right replacement is critical for system balance. Below are verified equivalents based on displacement and gas type.

5 Compressor Replacements (Same R134a Gas):

1. Secop (Danfoss): GL90AA (9.09 cc)
2. Embraco: FFI10HBK / FF10HBK
3. ZMC: GM90AZ
4. Tecumseh: AE1390Y
5. Wanbao / Huayi: QD91

5 Compressor Replacements (Alternative Refrigerants – System Flush Required):

1. R600a Equivalent: NLE9KK (Secop)
2. R600a Equivalent: EMT2125GK (Embraco)
3. R290 Equivalent: NEK2134U (Embraco – High Pressure adjustment required)
4. R1234yf Equivalent: YF9.0GY
5. R404A Equivalent: ML90FB (LBP specific conversion)

Comparative Analysis: GS91AZ vs. Industry Standards

To understand the positioning of the GS91AZ, it is essential to compare it with leading industry models of similar displacement.

Model	Displacement	Refrigerant	COP	Typical HP
Excellent GS91AZ	9.1 cc	R134a	1.25	1/3 HP
Secop GL90AA	9.09 cc	R134a	1.32	1/4 HP+
Embraco FF8.5HBK	7.95 cc	R134a	1.28	1/4 HP
ZMC GM90AZ	9.0 cc	R134a	1.20	1/3 HP

While the GS91AZ maintains a slightly lower COP (Coefficient of Performance) of 1.25 compared to some high-end Secop models, it offers a more aggressive displacement-to-price-performance ratio in the 1/3 HP segment. This makes it an ideal choice for regions with fluctuating voltages where rugged copper windings provide a crucial safety margin against electrical stress.

Electrical Schema and Wiring Configuration

For a standard RSIR (Resistance Start Induction Run) setup, the electrical connection is straightforward but requires precision. The compressor features three terminals: Common (C), Start (S), and Run (R).

1. Protector (Overload): Connected directly to the Common (C) terminal.
2. Relay (PTC/Current): Plugged onto the Run (R) and Start (S) terminals
3. Power Input:

   • Line (L) goes to the Thermal Overload Protector.
   • Neutral (N) goes to the main terminal of the Relay (Run side).

Note: In cases where a start capacitor is required for high-torque starts, it is wired in series with the start terminal through the relay contacts.

Installation Advice and Best Practices

• Vacuuming: Always perform a deep vacuum (at least 500 microns) to remove moisture. R134a systems are highly sensitive to humidity, which can lead to acid formation in the POE oil.
• Oil Maintenance: If a system has suffered a burnout, the condenser and evaporator must be flushed. Residual acid will contaminate the fresh POE oil in the new GS91AZ, leading to premature failure.
• Filter Drier: Never reuse a filter drier. Always install a new XH-9 or equivalent drier to protect the 9.1 cc displacement valve plate from debris.

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Focus Keyphrase: Excellent Compressor GS91AZ 1/3 HP R134a 9.1cc High Performance Refrigeration Unit

SEO Title: Mbsm.pro, Compressor, GS91AZ, 1/3 HP, R134a, 9.1 cc, 220V 50Hz, LBP, High Reliability

Meta Description: Discover the technical specifications of the Excellent Compressor GS91AZ. A 1/3 HP, R134a reciprocating unit with 9.1cc displacement and copper windings for superior cooling.

Slug: excellent-compressor-gs91az-1-3hp-r134a-specifications

Tags: GS91AZ, Excellent Compressor, R134a, 1/3 HP, 9.1cc, Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Refrigeration, LBP Compressor, Fridge Repair, Copper Winding Compressor

Excerpt: The Excellent Compressor GS91AZ has established itself as a robust solution for engineers and technicians looking for a durable replacement in various cooling appliances. Designed specifically for Low Back Pressure (LBP) applications, this reciprocating unit balances power and energy savings, making it a staple in the high-performance refrigeration and cooling sector.

The codes L55AV and QD59H refer to specific types of refrigerator compressors utilized in household and small-scale commercial cooling systems. Below is a detailed breakdown of the manufacturing materials and technical specifications for each model:

1. L55AV Compressor

The L55AV is a compressor manufactured by Cubigel (currently part of the Huayi Group). It is specifically designed to operate with the legacy R12 refrigerant (or its retrofitted substitutes) and features an approximate capacity of 1/6 HP.

Primary Manufacturing Materials:

• Outer Shell (Housing): Constructed from deep-drawn carbon steel, which is coated with a specialized layer to resist rust and harsh environmental conditions.
• Electric Motor: Comprised of a core made from silicon steel laminations and windings of high-purity copper. (While some modern “economy” versions may use aluminum, copper remains the standard for original high-performance models).
• Pumping Mechanism (Cylinder and Piston): Typically manufactured from corrosion-resistant Cast Iron to ensure durability against friction and extreme heat.
• Crankshaft: Made of alloy steel or heat-treated cast iron for structural integrity.
• Valves: Fabricated from high-flexibility Spring Steel to withstand thousands of rapid opening and closing cycles.

2. QD59H Compressor

The QD59H is a widely distributed compressor manufactured by Huayi and other global producers. It is designed primarily for R134a refrigerant and maintains a capacity of approximately 1/6 HP.

Manufacturing Materials and Technical Features:

• Internal Components: Largely similar to the L55AV, utilizing cast iron for the piston/cylinder assembly and heavy-duty steel for the external shell.
• Motor Windings: Predominantly copper to guarantee high energy transmission efficiency and optimized power consumption.
• Suspension System: Features internal steel springs designed to absorb operational vibrations and minimize noise levels.
• Specialized Materials: Some technical reports for modern QD59H iterations indicate the use of ceramic balls in specific bearing types to reduce friction and extend service life, alongside gaskets made of advanced polymers.

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Material Comparison Summary Table

Component	Common Materials (L55AV & QD59H)
Outer Shell	Coated Carbon Steel
Motor Windings	Pure Copper (Rarely Aluminum)
Piston & Cylinder	Cast Iron
Valves	Stainless Steel / Spring Steel
Refrigerant Gas	R12 (L55AV) / R134a (QD59H)
Insulation	Mineral/Synthetic Oil and Paper/Plastic motor insulators

Focus Keyphrase: L55AV and QD59H Refrigerator Compressor Technical Specifications and Performance Comparison

SEO Title: Mbsmpro, Compressor, L55AV, QD59H, 1/6 HP, Huayi, Cubigel, Cooling, R12, R134a, 160 W, LBP, 220V, RSIR

Meta Description: Expert technical guide for L55AV and QD59H compressors. Discover cooling capacity, displacement, 1/6 HP performance, and R12 to R134a conversion insights for HVAC engineers.

Slug: l55av-qd59h-compressor-specifications-comparison

Tags: L55AV, QD59H, Huayi Compressor, Cubigel, 1/6 HP Compressor, R134a, R12, Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, HVAC Technical Data, Refrigeration Repair

Excerpt: The L55AV and QD59H are cornerstone compressors in the domestic refrigeration industry, both rated at 1/6 HP. While the L55AV traditionally operates with R12, the QD59H is the modern R134a standard. This article provides deep technical data, electrical wiring diagrams, and professional comparison tables for field technicians and refrigeration engineers seeking reliable data.

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Mbsm.pro, Compressor, L55AV, QD59H, 1/6 hp, Cooling, R12, R134a, 160 W, 1.1 A, 1Ph 220‑240V 50Hz, LBP, RSIR, −35°C to −10°C

In the demanding field of refrigeration maintenance and engineering, the reliability of a compressor defines the lifespan of the appliance. Today, we analyze two workhorses of the industry: the L55AV and the QD59H. As an engineer who has spent years in the workshop and on-site, I can testify that understanding the subtle metallurgical and chemical differences between these two models is the difference between a successful repair and a repetitive failure.

The Technical Evolution: L55AV and QD59H

The L55AV (often associated with brands like Cubigel, Zem, or Huayi) is a classic reciprocating compressor. Historically, it was the go-to choice for units using R12 refrigerant. On the other hand, the QD59H represents the modern shift, optimized for R134a. Both are classified as LBP (Low Back Pressure) units, typically found in household refrigerators and medium-sized chest freezers.

Technical Specifications Table

Characteristic	L55AV Model	QD59H Model
Horsepower (HP)	1/6 HP	1/6 HP
Displacement	5.44 cm³	5.9 cm³
Refrigerant Type	R12 / R406a	R134a
Cooling Capacity	130W – 145W	160W – 165W
Voltage Range	220-240V / 50Hz	220-240V / 50Hz
Motor Type	RSIR (Relay Start)	RSIR / RSCR
Evaporating Temp	-35°C to -10°C	-35°C to -15°C
Oil Type	Mineral	POE / Synthetic

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Engineering Comparison: Displacement vs. Efficiency

When comparing these two, a critical factor for the field worker is the Displacement. The QD59H offers a slightly larger displacement at 5.9 cm³ compared to the 5.44 cm³ of the L55AV. This allows the QD59H to achieve a higher cooling capacity (approx. 160W) while maintaining a standard 1/6 HP footprint.

Value Comparison with Similar Models

Model	HP Rating	Gas Type	Capacity (W)	Efficiency (COP)
L55AV	1/6	R12	145	1.15
QD59H	1/6	R134a	165	1.22
GL60AA	1/6	R134a	155	1.20
FN66Q	1/6	R12	140	1.10

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Electrical Schema and Wiring Configuration

For the electric setup, these models generally utilize the RSIR (Resistance Start Induction Run) system. Below is the typical connection logic:

1. Common (C): Top pin of the compressor triangle.
2. Start (S): Connected to the PTC starter or electromagnetic relay.
3. Run (R): Main power line connected directly to the winding.

Note for Technicians: Always verify the resistance between C-S and C-R. The Start winding (C-S) will always show a higher resistance than the Run winding (C-R). If you are replacing an L55AV with a modern QD59H, ensure your Overload Protector (OLP) is matched to the 1.1A to 1.3A running current of the new unit.

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Field Worker’s Advice: Professional Installation Tips

• System Flushing: If you are replacing an old L55AV (R12) with a QD59H (R134a), you must flush the evaporator and condenser with R141b. R12 systems use mineral oil, which is incompatible with the POE oil found in R134a compressors. Mixing them creates an acidic sludge that will choke your capillary tube.
• Vacuum Procedure: Never settle for a “short vacuum.” Because the QD59H uses synthetic oil, it is highly hygroscopic (absorbs moisture). A minimum vacuum of 500 microns is recommended to ensure system longevity.
• Filter Drier: Always install a new XH-9 molecular sieve filter drier when switching to R134a.

Benefits of the QD59H over Older Models

1. Lower Noise Profile: The internal suspension of the QD59H is designed with high-tension springs that reduce “chatter” during start-stop cycles.
2. Environmental Compliance: Moving away from R12 reduces ODP (Ozone Depletion Potential).
3. Thermal Stability: The windings in the QD59H are often insulated with higher-grade polymers that resist burnout during voltage fluctuations common in 220V grids.

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Technical Catalogs and Resources

For engineers requiring the full manufacturer curves and torque data, you can refer to the following official documentation (Ensure you are using a secure browser):

• Mbsm.pro Technical Archive for L55AV

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Final Notice: When working on these projects, always verify the LRA (Locked Rotor Amps) on the nameplate. For a 1/6 HP unit like the QD59H, it should typically range between 6A and 8A. If your reading is higher, check for mechanical binding or a faulty start capacitor. Be smart, be an engineer, and prioritize system cleanliness above all else.

Mbsmpro, Compressor, Kiriazi Refrigerator, KM 33, L 310, 1/5 hp, R134a, 160g, 1.1 A, 220V, Tropical Class, Cooling and Freezing

Technical Analysis of the Kiriazi KM 33 and L 310 Tropical Cooling Systems

When it comes to high-performance refrigeration in demanding climates, the Kiriazi Company has established itself as a benchmark for durability and thermal efficiency. The KM 33 and L 310 models are specifically engineered for Tropical Class environments, meaning they are designed to maintain internal temperatures even when ambient external heat exceeds 43°C.

The heart of these units is a robust reciprocating compressor optimized for R134a refrigerant. Understanding the electrical and thermodynamic parameters of this system is essential for HVAC engineers and field technicians performing maintenance or compressor replacements.

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Core Technical Specifications

The following data outlines the operational limits and requirements for the Kiriazi KM 33 and L 310 series.

Parameter	Specification Value
Appliance Model	KM 33 / L 310 / K 330
Refrigerant Type	R134a (Tetrafluoroethane)
Refrigerant Charge	160 Grams
Voltage / Frequency	220V – 240V / 50Hz
Current Consumption	1.1 Amperes
Power Consumption	2.3 Kw.h / 24H
Freezing Capacity	5.0 Kg / 24H
Cooling System Pressure	20 Bar (High Side Test)
Climate Class	Tropical (T)

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Compressor Characteristics and Horsepower Correlation

In the field, identifying the exact horsepower of a compressor when the label is weathered requires looking at the Current Consumption (FLA). For the Kiriazi L 310, the 1.1A rating at 220V typically points to a 1/4 HP (Horsepower) compressor.

These compressors usually operate on an RSIR (Resistive Start, Inductive Run) or RSCR (Resistive Start, Capacitive Run) circuit. The Tropical motor designation indicates higher torque and reinforced insulation to handle the increased head pressure common in hot regions.

Comparative Power Analysis

How does the KM 33 compressor compare to other common refrigerator sizes?

Refrigerator Size	Typical Current (A)	Estimated HP	Refrigerant Charge
Small (120L)	0.6 – 0.7 A	1/8 HP	80 – 100g
Medium (250L)	0.8 – 0.9 A	1/6 HP	120 – 140g
Kiriazi KM 33 (330L)	1.1 A	1/5 HP	160g
Large Side-by-Side	1.5 – 2.0 A	1/4 HP	200g+

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Electrical Wiring and Schema

For technicians replacing the starting device (PTC or Relay), following the correct wiring diagram is vital to prevent motor burnout.

Typical Compressor Terminal Layout (Standard C-S-R):

1. Common (C): Connected to the Overload Protector (OLP).
2. Start (S): Connected to the Starting Relay/PTC.
3. Run (R): Connected to the Neutral line and the other side of the PTC.

Note: In Tropical models, a Run Capacitor (usually 4µF to 6µF) is often added between the Start and Run terminals to improve electrical efficiency and reduce heat generation during long run cycles.

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Engineering Advice for Peak Performance

1. Condenser Hygiene: Because this is a Tropical Class machine, the condenser coils dissipate a significant amount of heat. Ensure the rear of the fridge has at least 10cm of clearance from walls to prevent “short-cycling” of the compressor.
2. Voltage Stabilization: The 1.1A draw can spike significantly if the input voltage drops below 190V. In regions with unstable power, a dedicated voltage stabilizer is recommended to protect the compressor windings.
3. Filter Drier Replacement: When opening the system for repair, always replace the filter drier. With a 160g charge of R134a, even trace amounts of moisture can cause capillary tube blockage.

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Kiriazi Refrigerator KM 33 Compressor R134a Specs

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Comprehensive technical guide for Kiriazi KM 33 and L 310 refrigerators. Detailed specs on R134a compressor, 1.1A current, and tropical cooling performance for HVAC professionals.

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The Kiriazi KM 33 and L 310 refrigerators represent the pinnacle of tropical cooling engineering, designed to withstand extreme ambient temperatures while maintaining peak efficiency. Utilizing R134a refrigerant and a robust 1.1A compressor, these units are a staple for technicians requiring reliable performance data for maintenance and compressor replacement in high-heat environments.

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Mbsm.pro, REFRIGERATOR, K330, 330 L, Kiriazi K330, Compressor, 1/5 hp, EGM75AF, 11 feet

Focus Keyphrase: Danfoss Secop BD35F 101Z0200 DC compressor technical specifications and 12V 24V wiring guide for mobile refrigeration Mbsmpro

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Excerpt: The Danfoss Secop BD35F 101Z0200 is the industry standard for DC mobile refrigeration. Engineered for 12V and 24V systems using R134a, this compressor offers variable speed performance from 1/8 to 1/5 hp. This Mbsmpro technical guide explores its electronic control unit, wiring schemas, and cooling capacities for trucks, boats, and solar-powered appliances.

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Mbsmpro.com, Compressor, BD35F, 1/8 to 1/5 hp, Secop Danfoss, Mobile Cooling, R134a, 35-120 W, 12-24V DC, LBP/MBP/HBP, Brushless DC, -30°C to +10°C, Cooling or Freezing

The Secop Danfoss BD35F (code 101Z0200) is widely regarded as the most reliable and versatile direct current (DC) compressor ever engineered. Designed specifically for mobile applications—ranging from marine refrigeration and truck cabins to solar-powered medical coolers—this unit utilizes a high-efficiency brushless DC motor. As a field expert, I have seen these units operate in extreme conditions where stability and low energy consumption are the highest priorities.

Unlike standard household compressors that run on a fixed frequency, the BD35F is a variable-speed machine controlled by an integrated electronic unit. This allows it to adapt its cooling capacity precisely to the demand, significantly extending battery life in off-grid environments.

Technical Specifications and Performance Data

The following table outlines the mechanical and thermodynamic characteristics of the BD35F unit.

Property	Technical Detail
Model Number	101Z0200 (BD35F)
Refrigerant	R134a
Voltage Range	12V DC and 24V DC (Automatic Switching)
Horsepower (HP)	1/8 hp (at 2000 RPM) to 1/5 hp (at 3500 RPM)
Displacement	2.00 cm³
Oil Type / Amount	Polyolester (POE) / 150 cm³
Cooling Type	Static or Fan Cooled (Recommended)
Application Range	LBP / MBP / HBP (-30°C to +10°C)
Standard Control Unit	101N0210, 101N0212, or 101N0510

Cooling Capacity and Power Consumption

The BD35F’s performance is directly linked to its rotational speed (RPM), which is determined by a resistor in the thermostat circuit.

Speed (RPM)	Cooling Capacity (Watts)	Power Consumption (Watts)	Current Draw (12V)
2,000	35 W	28 W	2.3 A
2,500	48 W	38 W	3.1 A
3,000	62 W	51 W	4.2 A
3,500	76 W	65 W	5.4 A

Note: Values based on LBP conditions (-25°C evaporation temperature).

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Electrical Schema and Control Unit Interface

The electronic unit is the “brain” of the compressor. It handles the starting sequence, battery protection (low voltage cut-out), and speed regulation.

Electronic Unit Connection Map:

1. Terminals (+) and (-): Connect directly to the battery. Crucial Notice: Always use a fuse (15A for 12V, 7.5A for 24V) and ensure wire thickness is sufficient to prevent voltage drop.
2. Terminal (F): Connection for a small 12V/24V DC fan (max 0.5A). The fan helps cool the condenser and the electronics.
3. Terminals (C) and (T): Thermostat connection. Placing a resistor here sets the compressor speed (e.g., no resistor = 2000 RPM; 1500 Ω = 3500 RPM).
4. Terminal (D): Diagnostic port. A LED connected between (+) and (D) will flash error codes to indicate faults like low battery or motor overload.
5. Terminal (P): Battery protection setting. Connecting different resistors here changes the low-voltage cut-out levels.

Logic Schema Summary:
[Battery 12/24V] –> [Electronic Unit] –> [3-Phase BLDC Output] –> [Compressor Motor]

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Comparative Analysis: BD35F vs. BD50F

In the field, technicians often choose between the BD35F and the slightly larger BD50F. While they look identical externally, their internal displacement differs.

Feature	BD35F (101Z0200)	BD50F (101Z1220)
Displacement	2.0 cm³	2.5 cm³
Max Capacity	120 Watts (HBP)	160 Watts (HBP)
Efficiency	Best for small boxes (under 100L)	Better for large coolers/freezers
Energy Usage	Lower idle/starting current	Slightly higher power requirement

Engineering Advice and Maintenance Notices

• Wire Gauge Importance: DC systems are extremely sensitive to voltage drops. If your wiring is too thin, the electronic unit will detect “low voltage” and shut down the compressor (1 flash on the LED), even if the battery is full.
• Heat Dissipation: Always install the compressor in a ventilated area. If the electronic unit reaches 85°C, it will trigger a thermal shut-down.
• Refrigerant Precision: These systems usually have very small charge weights (30g to 90g). Overcharging by even 5 grams can cause high pressure and motor stalling.
• Benefit of Variable Speed: For solar setups, running the compressor at 2000 RPM (lowest speed) is the most energy-efficient way to maintain temperature, as it minimizes the start/stop cycles that consume the most peak power.

Technician’s Troubleshooting Checklist

1. LED Flashes (1): Low voltage. Check wire connections and battery charge.
2. LED Flashes (3): Motor start error. The system is likely over-pressurized or the compressor is seized.
3. LED Flashes (5): Thermal cut-out. Improve ventilation around the electronic module.

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Mbsmgroup remains your leading resource for professional refrigeration engineering. By mastering the technical nuances of the BD35F 101Z0200, you ensure the longevity and efficiency of mobile cooling systems worldwide.