R134a, refrigerant, compressor L65CZ1, 220-240V 50Hz, LBP, 1/5 hp

Description

Mbsm.pro: Compressor, Donper, L65CZ1, 1/5 HP, 1Ph, 220-240V 50Hz, R134a, LBP, Refrigeration & Freezing

Technical Specifications Table

Feature	Details
Model	L65CZ1
Manufacturer	Donper (Dongbei Compressor)
Utilisation	LBP (Low Back Pressure)
Domaine	Domestic Refrigerators / Freezers / Wine Coolers
Cooling Wattage at -23.3°C	158-170 W (ASHRAE)
Cubic Feet Capacity	5 to 10 cu. ft. (Depending on insulation)
Litres Capacity	150 to 280 Liters
Kcal/h	136 Kcal/h
TON	~0.045 Tons
Oil Type and Quantity	POE (Polyolester) or Mineral Oil, 280-320 ml
Horsepower (HP)	1/5 HP
Refrigerant Type	R134a
Power Supply	220-240V / 50Hz / 1Ph
Cooling Capacity BTU	464 BTU/h
Motor Type	RSIR (Resistance Start Induction Run)
Displacement	6.5 cm³
Winding Material	Copper
Pression Charge	8-12 Bar (High Side)
Capillary Recommendation	0.028″ or 0.031″ (Length varies by application)
Compatible Appliances	Domestic refrigerators, freezers, wine coolers, beverage coolers
Temperature Function	-25°C to +10°C
With Fan or No	Yes (Fan cooling required for compressor)
Commercial or No	Domestic/Light Commercial Grade
Amperage (FLA)	1.2 A to 1.5 A
LRA (Locked Rotor Amps)	6.0-7.5 A
Type of Relay	PTC Relay
COP	1.25 W/W
Voltage Range	187-254V
Max Condensing Temperature	60°C (Continuous) / 70°C (Short)
Thermal Protection	Yes (Internal Thermal Protector)
Net Weight	6.5-7.0 kg
Origin	Manufactured in China

Efficiency Metrics (COP) Table

Performance varies based on operating conditions. Here is how the L65CZ1 performs across the temperature spectrum:

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-25	135	130	1.04
-20	165	140	1.18
-15	200	150	1.33
-10	240	160	1.50
-5	285	170	1.68
0	335	180	1.86
5	390	190	2.05
10	450	200	2.25

Replacement Models

Brand	Model Number
Donper	L65CZ1
Donper	L65CZ variants

5 Replacements (Same R134a Gas)

1. Embraco NEK6196Z (Strong alternative, 1/5 HP, 6.5cc)
2. Tecumseh THG1352YLS (Classic reliable swap, 1/6 HP)
3. Panasonic QB66C13GAX5 (Excellent domestic equivalent, 6.6cc)
4. Cubigel GL80AA (Similar capacity, 7.8cc)
5. Huayi HYE11YG (Budget-friendly alternative, 1/6 HP)

5 Replacements (Other Gas – R600a/R404A)

Note: Requires complete system flush and expansion valve/capillary adjustment.

1. Embraco EGU80HLP (R600a – Isobutane, very efficient, 1/6 HP)
2. Danfoss SC10CNX (R290 – Propane, high efficiency)
3. Tecumseh CAJ9480Z (R404A – Higher capacity)
4. Secop NL9FK (R600a compatible variant)
5. Cubigel HM80AA (R600a – Energy efficient)

Key Features

• Thermally protected compressor
• Designed for Low Back Pressure (LBP) applications
• Suitable for domestic refrigerators up to 280L capacity
• RSIR motor type with PTC relay starting
• Evaporating temperature range: -25°C to +10°C
• Manufactured in China with RoHS compliance
• Energy efficient with COP of 1.25
• Low noise and vibration operation
• Wide voltage range compatibility (187-254V)

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Focus Keyphrase: Donper L65CZ1 Compressor Specs and Replacements

SEO Title: Mbsm.pro – Donper L65CZ1 Compressor: 1/5 HP R134a Technical Guide

Meta Description: Looking for L65CZ1 specs? We break down this 1/5 HP R134a Donper compressor including cooling capacity (158-170W), wiring, oil type, and the top replacement models for domestic refrigeration.

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Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Donper, L65CZ1, R134a, 1/5 HP, LBP, Low Back Pressure, NEK6196Z, THG1352YLS, QB66C13GAX5, GL80AA, Compressor Replacement, HVAC, Refrigeration Repair, Domestic Refrigerator, China

Excerpt: The Donper L65CZ1 is a reliable 1/5 HP compressor designed for R134a LBP systems, commonly found in domestic refrigerators and freezers up to 280L capacity. This guide provides the full technical data sheet, including cooling capacity (158-170W at ASHRAE), oil requirements (280-320ml), and a comprehensive list of compatible replacements for both R134a and modern alternative refrigerants to ensure your repair is successful.

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Focus Keyphrase: Donper LG83WZ1 Refrigeration Compressor Technical Specifications and R134a Replacement Guide

SEO Title: Mbsmpro.com, Compressor, LG83WZ1, 1/4 HP+, Donper, Cooling, R134a, 230 W, 1.4 A, 1Ph 220-240V 50Hz, LBP, Freezing

Meta Description: Explore the comprehensive technical specs for the Donper LG83WZ1 compressor. Includes cooling capacity, replacement cross-references, and performance data for R134a systems.

Slug: donper-lg83wz1-compressor-specifications-r134a-replacement

Tags: Donper, LG83WZ1, R134a, 1/4 HP+, Refrigerator Compressor, Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Embraco FFI8.5HAK, Secop NLE8.8MF, LG MA88LAEP, Panasonic QB86C16GAX5, Tecumseh THG1374YS, LBP Compressor

Excerpt: The Donper LG83WZ1 stands as a cornerstone in modern domestic and light commercial refrigeration. Engineered for Low Back Pressure applications, this R134a-driven unit provides reliable cooling capacity for medium to large refrigerators. Its 8.3cc displacement ensures consistent thermal management, making it a preferred choice for technicians seeking a robust, thermally protected motor for demanding climates.

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The Engineering Behind Reliability: A Deep Dive into the Donper LG83WZ1 Compressor

In the precision-driven world of refrigeration, the compressor is the heart of the thermal cycle. Among the workhorses found in modern residential and light commercial units, the Donper LG83WZ1 has earned a reputation for resilience and steady performance. As a Low Back Pressure (LBP) specialist, this model is specifically designed to handle the rigorous demands of freezing and deep-cooling applications where maintaining sub-zero temperatures is non-negotiable.

Technical Performance and Infrastructure

The LG83WZ1 utilizes R134a refrigerant, a long-standing industry standard known for its thermodynamic stability. With a displacement of 8.3 cm³, it sits comfortably in the 1/4 HP+ to 1/3 HP class, providing enough “muscle” for large household refrigerators or vertical display freezers. The motor is a single-phase, thermally protected unit operating on a standard 220-240V 50Hz supply, making it a universal fit for many international markets.

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Comprehensive Technical Specifications

Feature	Specification
Model	LG83WZ1
Utilization	LBP (Low Back Pressure)
Domaine	Freezing / Deep Cooling
Cooling Wattage at -23.3°C	230 W
Cubic Feet Capacity	14 – 18 cu.ft.
Liters Capacity	400 – 500 Liters
Kcal/h	198 Kcal/h
Oil Type and Quantity	Ester Oil (POE) / 180ml
Horsepower (HP)	1/4 HP+
Refrigerant Type	R134a
Power Supply	220–240V / 50Hz / 1Ph
Cooling Capacity (BTU/h)	785 BTU/h
Motor Type	RSIR / RSCR (depending on start kit)
Displacement	8.3 cm³
Winding Material	High-Grade Copper
Suction Pressure Charge	0.5 to 1.2 Bar (system dependent)
Capillary Recommendation	0.031″ or 0.036″ ID
Common Application	Double-door refrigerators, Chest Freezers
Temperature Function	-35°C to -15°C
Cooling Method	Static or Fan Assisted
Commercial Status	Semi-Commercial / Residential
Amperage (FLA)	1.4 A
LRA (Locked Rotor Amps)	11.5 A
Relay Type	PTC or Magnetic
Start Capacitor	Optional (usually 60-80 µF if used)
Origin	China (Global Export)

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Efficiency Metrics (COP)

Understanding the Coefficient of Performance (COP) is vital for energy-conscious engineering. The LG83WZ1 shows its strengths in the mid-range of LBP operations.

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-30	165	148	1.11
-25	215	165	1.30
-23.3 (ASHRAE)	230	172	1.34
-20	275	185	1.48
-15	345	205	1.68
-10	430	230	1.87

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Direct Replacement Cross-Reference

When a compressor fails in the field, speed and accuracy in replacement are paramount. Below are the most compatible units based on displacement and cooling capacity.

5 Replacements: Same Refrigerant (R134a)

Brand	Model	HP Equivalent	Displacement
Embraco	FFI8.5HAK	1/4 HP+	8.5 cm³
Secop	NLE8.8MF	1/3 HP	8.8 cm³
LG	MA88LAEP	1/4 HP+	8.8 cm³
Panasonic	QB86C16GAX5	1/4 HP+	8.6 cm³
Tecumseh	THG1374YS	1/4 HP	7.4 cm³

5 Replacements: Alternative Refrigerant (R600a)

Note: Converting from R134a to R600a requires a complete system flush, lubricant change, and capillary adjustment.

| Brand | Model | HP Equivalent | Gas Type |

| :— | :— | :— | :— |

| Embraco | EMX70CLC | 1/4 HP | R600a |

| Secop | TLES7.5KK.3 | 1/4 HP | R600a |

| LG | MK88LAEM | 1/4 HP+ | R600a |

| Donper | B80H | 1/4 HP | R600a |

| Jiaxipera | NT1114Y | 1/4 HP | R600a |

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Comparative Analysis: R134a vs. R600a Performance

While the LG83WZ1 uses R134a, the industry is shifting toward R600a (Isobutane). Comparing these two helps technicians understand why the LG83WZ1 remains a staple for repairs:

• Pressure: R134a operates at higher discharge pressures than R600a, allowing for faster heat transfer in smaller condenser coils.
• Charge Weight: R134a systems require a higher gram-weight charge than R600a, making the LG83WZ1 less sensitive to minor leaks.
• Oil Compatibility: The LG83WZ1 uses POE (Polyolester) oil, which is highly hygroscopic. Unlike the mineral oils used in R600a units, the LG83WZ1 requires strict moisture control during service.

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Electrical Schematic and Wiring Guide

For field workers, identifying the terminal configuration is the first step to a successful installation. The LG83WZ1 typically follows the standard triangular pin layout.

Engineering Tip: Always verify the resistance between the Start (S), Main (M), and Common (C) terminals. On the LG83WZ1, the Main winding typically shows lower resistance than the Start winding.

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Field Advice and Professional Notices

• Vacuum Integrity: Because this compressor uses Ester oil, you must pull a vacuum to at least 500 microns. Moisture reacting with POE oil creates acid that can etch the motor windings, leading to premature burnout.
• Filter Drier Replacement: Never install a new LG83WZ1 without replacing the filter drier. A clogged drier is the number one cause of high head pressure and motor failure.
• Condenser Maintenance: In commercial settings, ensure the condenser fins are cleaned every six months. The LG83WZ1 is robust, but excessive heat from a dirty condenser will trip the thermal protector and reduce the unit’s lifespan.

Benefits for the End User

1. Low Noise Floor: Designed with internal dampening springs to reduce vibration.
2. High Torque Start: Capable of starting under moderate pressure fluctuations, making it reliable in regions with unstable power grids.
3. Longevity: When paired with a clean system, these compressors are known to exceed 10 years of service life.

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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

Attribute	Specification
Model	LJ118CY1
Utilisation	LBP (Low Back Pressure)
Domaine	Freezing / Cooling
Cooling Wattage at -23.3°C	198 W
Kcal/h	170 Kcal/h
Oil Type and Quantity	Mineral / POE (approx. 180-200ml)
Horsepower (HP)	1/4 HP
Refrigerant Type	R600a
Power Supply	220–240V ~ 50Hz, 1Ph
Cooling Capacity BTU	675 BTU/h
Motor Type	RSCR / RSIR
Displacement	11.8 cm³
Winding Material	Copper
Pressure Charge	Low Pressure (Suction)
Capillary Recommendation	0.031 – 0.036 inch (Depends on length)
Refrigerator Size	14 to 16 Feet (Domestic)
Temperature Function	-35°C to -15°C
Fan Requirement	Static Cooling (No fan required for compressor)
Commercial Use	No (Mainly Domestic)
Amperage (RLA)	0.9 A – 1.2 A
LRA (Locked Rotor Amps)	6.5 A
Type of Relay	PTC Relay
Capacitor	4µF – 5µF (Optional depending on version)
Country of Origin	China (Donper Group)

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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

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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)

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-30	145	112	1.29
-25	185	128	1.45
-23.3	198	134	1.48
-20	235	145	1.62
-15	290	162	1.79
-10	360	180	2.00

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.

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

SEO Title: Mbsm.pro – Donper LJ118CY1 Compressor: 1/4 HP, R600a, Full Technical Specs

Meta Description: Discover the complete technical specifications for the Donper LJ118CY1 compressor. Learn about its 1/4 HP capacity, R600a efficiency, cooling wattage, and the best replacements for refrigerators.

Slug: donper-lj118cy1-compressor-1-4-hp-r600a-specs

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.

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.

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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

Feature	Specification
Model	S118CY1
Utilisation	LBP (Low Back Pressure)
Domaine	Freezing / Deep Cooling
Oil Type and Quantity	Mineral or POE (Consult label), ~180ml – 220ml
Horsepower (HP)	1/4 HP
Refrigerant Type	R600a (Isobutane)
Power Supply	220-240V ~ 50Hz, 1 Phase
Cooling Capacity BTU	Approx. 715 BTU/h (at -23.3°C)
Motor Type	RSIR (Resistance Start – Induction Run)
Displacement	11.8 cm³
Winding Material	High-Grade Copper
Pressure Charge	Low side (suction) depends on ambient
Capillary Tube	0.031″ to 0.036″ (Internal Diameter)
Compatible Appliances	Large domestic refrigerators, display freezers
Temperature Function	-35°C to -15°C
Cooling Method	Static or Fan cooling (application dependent)
Commercial/Residential	Residential / Light Commercial
Amperage (RLA)	0.9 A – 1.2 A (running)
LRA (Locked Rotor Amps)	6.5 A – 7.5 A
Type of Relay	PTC Start Relay
Capacitor	Often not required (RSIR), optional Run Capacitor

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.

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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Focus Keyphrase: Donper R134a Refrigerator Compressor Technical Specs L58CZ1 L65CZ1 L72CZ1 K270CZ1 K375CZ1

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Meta Description: Full technical data sheets for Donper R134a compressors: L58CZ1 (1/6HP), L65CZ1 (1/5HP), L72CZ1 (1/4HP), K270CZ1 (1/3HP), and K375CZ1 (1/2HP). Includes cross-reference and wiring tips.

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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.