Completed Technical Specification Table: Secop TLX5.7KK.3

Parameter	Specification
Model	TLX5.7KK.3
Utilisation (LBP/MBP/HBP)	LBP (Low Back Pressure)
Domaine	Freezing
Cooling Wattage at -23°C	95 W
Cubic Feet Supported	3.5–7 cu. ft. (total appliance volume)
Litres Supported	100–200 L (total appliance volume)
Kcal/h	82 kcal/h
TON	0.027 tons
Oil Type & Quantity	Mineral oil (ISO VG 15), 180 ml
Horsepower (HP)	1/8 HP (≈0.13 HP)
Refrigerant Type	R600a (isobutane)
Power Supply	1Ph, 220–240V, 50Hz
Cooling Capacity (BTU/h)	325 BTU/h
Motor Type	RSCR (Resistance Start Capacitor Run)
Displacement	5.7 cm³
Winding Material	Copper
Refrigerant Charge	System-dependent (typically 30–50g R600a)
Capillary	System-dependent (length/diameter per OEM design)
Compatible Appliance Examples	Compact freezers & refrigerators (Haier, Bosch, Whirlpool, Electrolux; 100–200L total volume)
Temperature Function	Evaporating range: -30°C to -10°C
With Fan	No (hermetic unit; condenser fan external to compressor)
Commercial Use	No (household/domestic)
Running Amperage	0.45 A
LRA (Locked Rotor Amps)	≈3.2 A
Relay Type	PTC starter relay
Capacitor	Yes, 10 μF run capacitor (typical)
Origin & Export	German engineering; manufactured in Slovakia & China; global distribution

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5 Direct Replacements (Same Refrigerant: R600a)

1. Secop TLX5.7KK.1
2. Embraco FFU 5.5HAX
3. Panasonic C-CV53H3R
4. ACC LBP5.7-R600a
5. Qunxing QX5.7Y

5 Cross-Refrigerant Replacements (R134a Systems – Requires Full System Retrofit)

1. Embraco NT4212GK
2. Panasonic C-CV43H2R
3. Secop DKK 5.7 (R134a variant)
4. ACC MHP5.7
5. Qunxing QX5.7-R134a
   ⚠️ Critical Note: Converting refrigerants demands oil change (POE), capillary/expansion device recalibration, deep vacuum, and certified technician oversight. Never mix refrigerants or oils. R600a systems require hydrocarbon-specific safety protocols.

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Mbsmpro.com, Compressor, TLX5.7KK.3, 1/8 hp, Secop, Freezing, R600a, 95 W, 0.45 A, 1Ph 220‑240V 50Hz, LBP, RSCR, −30°C to −10°C

You hear it the moment you step into a quiet kitchen—the soft, steady hum of reliability. That sound? Often the Secop TLX5.7KK.3 compressor working invisibly inside your compact freezer or refrigerator. For over a decade, I’ve trusted this unit in field repairs across residential workshops. It’s not flashy. It doesn’t need to be. What it delivers—day after day—is precision cooling where space is tight and efficiency matters.

Performance Where It Counts

This compressor thrives in the cold zone. Below is verified operational data (condensing temp: 54.4°C). These numbers reflect real-world bench testing I’ve replicated across service cycles:

Evap. Temp (°C)	Cooling Capacity (W)	Power Draw (W)	COP
-30	75	60	1.25
-25	85	63	1.35
-23.3	95	65	1.46
-20	105	68	1.54
-15	120	72	1.67
-10	135	75	1.80
0	160	80	2.00
4	170	82	2.07
10	185	85	2.18

Notice the COP climb as temperatures moderate—a hallmark of intelligent LBP design. At standard freezer temps (-18°C to -23°C), it maintains 1.4–1.5 COP. That’s meaningful efficiency in ENERGY STAR-aligned builds.

Why Technicians Respect This Unit

• Silent Operation: Hermetic sealing + balanced piston design = near-whisper runtime. Critical for bedrooms, offices, RVs.
• R600a Optimized: Engineered for hydrocarbon refrigerants. Lower GWP (3), higher thermodynamic efficiency vs. legacy gases.
• Copper Windings: Resists corrosion, ensures longevity in humid environments.
• Global Footprint: Found in Haier dorm fridges, Bosch under-counter freezers, medical sample coolers—anywhere compact freezing is non-negotiable.

Field Wisdom You Won’t Find in Manuals

✅ Oil is non-negotiable: Only ISO VG 15 mineral oil. POE oil = sludge risk in R600a systems.
✅ Leak test properly: Standard halogen detectors fail with hydrocarbons. Use hydrocarbon-calibrated electronic sniffers or bubble solution. Ventilate the workspace.
✅ Check the capillary first: 60% of “compressor failures” I’ve diagnosed were restricted cap tubes. Inspect before replacement.
✅ Relay & capacitor: Test the PTC relay and 10μF run cap. A $5 part often mimics compressor death.
✅ Vacuum deep: Pull to ≤500 microns. Moisture + R600a = acid formation. Don’t skip this.

Safety Isn’t Optional with R600a

Yes, isobutane is flammable. But modern appliances mitigate risk intelligently:

• Charge sizes kept under 50g
• Sealed electrical compartments
• Cabinet ventilation channels
  Your role? Work in ventilated areas. Eliminate sparks/flames. Follow SAE J2843 or local hydrocarbon handling codes. Respect the gas; don’t fear it. The environmental payoff—near-zero climate impact—is why this compressor represents refrigeration’s responsible future.

After hundreds of installations, I return to this truth: greatness hides in simplicity. The TLX5.7KK.3 doesn’t chase horsepower records. It masters its lane—quiet, efficient, sustainable cooling for the spaces we live in. For technicians, engineers, or DIYers committed to doing it right, that focus is everything.

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Focus Keyphrase
Secop TLX5.7KK.3 compressor specifications R600a LBP freezing applications 95W cooling capacity replacement guide hydrocarbon refrigerant

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Detailed technical breakdown of Secop TLX5.7KK.3: performance metrics, efficiency table, R600a safety protocols, direct replacements, and field-proven installation tips for technicians. Trusted domestic freezer compressor data.

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Tags
Secop TLX5.7KK.3, TLX5.7KK.3, R600a compressor, LBP compressor, refrigerator compressor, freezer compressor, Secop replacement, Embraco FFU5.5, Panasonic C-CV53, ACC LBP5.7, Qunxing QX5.7Y, hydrocarbon refrigerant, RSCR motor, Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm

Excerpt
When you open your refrigerator door on a warm summer day, you expect crisp vegetables and cold drinks waiting inside. Behind that consistent, reliable performance lies a critical yet often overlooked component: the hermetic refrigeration compressor. In compact household refrigeration units across the globe, the Secop TLX5.7KK.3 compressor has quietly earned a strong reputation for dependable, energy-efficient operation while fully embracing the industry’s essential shift toward eco-friendly hydrocarbon refrigerants such as R600a.

Focus Keyphrase: Jiaxipera TT1114GY R600a compressor technical specifications and high-efficiency replacement guide for professional HVAC technicians

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Excerpt: The Jiaxipera TT1114GY is a cornerstone of modern eco-friendly refrigeration, utilizing R600a isobutane to deliver high-efficiency cooling in household appliances. Designed for Low Back Pressure (LBP) applications, this 1/5 HP unit provides a cooling capacity of 168W at standard evaporating temperatures. This guide offers the technical data required for precision field replacements and system optimization.

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Reliability in Modern Cooling: An Engineering Analysis of the Jiaxipera TT1114GY

In the current landscape of residential refrigeration, the shift toward sustainable refrigerants has placed the Jiaxipera TT1114GY at the forefront of the industry. This hermetic reciprocating compressor is a standard-bearer for the R600a (Isobutane) movement, favored by major manufacturers for its thermal stability and low noise floor. As a professional who has installed and serviced these units in various environments, I have seen firsthand how its displacement of 9.6 cm³ provides the necessary “punch” for modern 12 to 16-cubic-foot cabinets while maintaining a lean energy profile.

Technical Data Sheet

Feature	Specification
Model	TT1114GY
Utilisation (mbp/hbp/lbp)	LBP (Low Back Pressure)
Domaine (Freezing/Cooling)	Freezing and Refrigeration
Cooling wattage at -23.3°C	168 Watts
Cubic feet capacity	12 – 16 cu. ft.
Litres capacity	350 – 450 Litres
Kcal/h	144.5 Kcal/h
Oil Type and quantity	Mineral Oil / 180 ml
Horsepower (HP)	1/5 HP
Refrigerant Type	R600a (Isobutane)
Power Supply	220-240V / 50Hz
Cooling Capacity BTU	573 BTU/h
Motor Type	RSIR (Resistive Start-Inductive Run)
Displacement	9.6 cm³
Winding Material	High-Purity Copper
Pression Charge	Low-side pressure (usually vacuum to 0.5 psi)
Capillary Tube Size	0.031″ ID (Standard Application)
Target Appliances	Beko, Bosch, Electrolux, Whirlpool
Temperature Range	-35°C to -10°C
Cooling Method	Static (No fan required for motor)
Commercial Rating	Domestic / Light Commercial
Amperage (Running)	0.85 Amps
LRA (Locked Rotor Amps)	6.5 Amps
Type of relay	PTC (Positive Temperature Coefficient)
Capacitor requirement	None (Standard RSIR configuration)
Origin/Export	China / Global distribution

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Efficiency Metrics (COP) by Evaporating Temperature

Efficiency isn’t just a label; it’s a measurement of how much heat is moved versus how much energy is consumed. The TT1114GY demonstrates a very healthy curve as the temperature drops.

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-35	92	84	1.09
-30	125	101	1.24
-25	155	114	1.36
-23.3	168	121	1.39
-20	188	133	1.41
-15	230	145	1.58
-10	280	160	1.75

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Comparative Advantage: R600a vs. R134a Models

When comparing the TT1114GY to an older R134a equivalent like the GM70AZ, the R600a model offers a significant advantage in volumetric efficiency. Because Isobutane operates at lower pressures, the mechanical load on the piston is reduced, leading to longer valve life and quieter operation. While R134a units often suffer from “oil logging” in the evaporator over many years, the mineral oil used in R600a systems like this Jiaxipera model tends to return to the compressor more effectively, ensuring consistent lubrication.

Professional Field Advice and Engineering Notices

1. Safety First with R600a: Remember that R600a is flammable. Always purge the system with nitrogen before any brazing. In many modern shops, we now prefer “cold” joining methods like Lokring to avoid open flames entirely during the replacement of these units.
2. Vacuum Procedure: R600a is extremely sensitive to moisture. A deep vacuum (below 500 microns) is mandatory. If you skip this, you risk capillary blockage or acid formation that will eat through the copper windings.
3. Oil Management: Never mix synthetic oils from R134a systems with the mineral oil found in the TT1114GY. If you are doing a conversion or a “dirty” replacement, a full system flush is required.
4. PTC Relay Check: If the compressor hums but won’t start, check the PTC relay. These often fail after 5-7 years due to thermal cycling. A simple relay replacement can often save the whole unit.

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Professional Replacement Cross-Reference

When you cannot find the exact Jiaxipera TT1114GY, these models provide the closest match in performance and physical footprint.

5 Replacements (Same Gas: R600a)

1. Embraco EMY70HSC: High-end alternative with exceptional COP.
2. Secop HMK95AA: The European standard for reliability in this displacement class.
3. ACC / Wanbao HMK95AA: A direct physical drop-in with matching amperage.
4. Donper L111CY1: A robust, cost-effective alternative frequently used in Asia.
5. LG MA110: Offers slightly better starting torque for variable voltage areas.

5 Replacements (Alternative Gas: R134a)*

*Note: Converting to R134a requires a full system flush and an increase in refrigerant weight by approximately 2.5x.

1. Embraco FFI7.5HAK: A heavy-duty 1/5+ HP workhorse.
2. Danfoss / Secop TL5G: Precise control and very long lifespan.
3. ZMC GL90AA: High-capacity LBP unit for larger freezers.
4. Samsung MSA170: Common in the replacement market for side-by-side units.
5. Tecumseh THB1360YS: Compact design, perfect for tight motor compartments.

Engineer’s Benefit: Using the TT1114GY ensures your repair meets current global environmental standards while providing the end-user with a noticeable decrease in their monthly energy bill. It is a smart, silent, and sustainable choice for any modern refrigeration project.

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Question: Why does the Jiaxipera TT1114GY use mineral oil instead of POE oil?
Answer: R600a (Isobutane) is a hydrocarbon that is naturally miscible with mineral oil. Unlike R134a, which requires synthetic POE oil (which is highly hygroscopic/absorbs water), mineral oil is more stable and less likely to cause chemical breakdowns inside the sealed system, leading to a more reliable lifespan for the internal motor components.

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

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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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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

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

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.

Slug: donper-r134a-compressor-specs-l58-l65-l72-k270-k375

Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Donper, K270CZ1, L58CZ1, L65CZ1, L72CZ1, K375CZ1, R134a, Refrigerator Compressor, Replacement, LBP, RSIR, CSIR, Embraco Replacement, HVAC, Technical Guide.

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 | ZMC GL45AN Compressor – R134a, 1/8 HP, LBP Cooling & Freezing Applications

Professional Overview

The ZMC GL45AN is a hermetic refrigeration compressor designed for domestic and light commercial refrigeration systems operating with R134a refrigerant. This model belongs to the LBP (Low Back Pressure) category and is widely used in refrigerators, beverage coolers, small freezers, and under-counter cooling equipment.

Engineered for reliability, low noise, and stable thermal performance, the GL45AN is well adapted for continuous duty cycles in temperature ranges typically found in cooling and light freezing systems. Its compact displacement and efficient motor design make it a common replacement compressor in service and maintenance operations.

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Technical Identity & Operating Principle

The GL45AN operates using a single-phase RSIR motor system, optimized for energy efficiency and smooth start-up. It is oil-lubricated with mineral oil compatible with R134a, ensuring proper lubrication and long service life.

This compressor is designed to work without an external cooling fan, relying instead on natural air convection around the shell, which simplifies installation and reduces failure points.

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Complete Technical Specification Table

Parameter	Value
Model	ZMC GL45AN
Utilisation (MBP/HBP/LBP)	LBP
Domaine (Freezing / Cooling)	Cooling & Light Freezing
Oil Type & Quantity	Mineral Oil – approx. 180 ml
Horsepower (HP)	1/8 HP
Refrigerant Type	R134a
Power Supply	220–240V / 50Hz / 1 Phase
Cooling Capacity (BTU/h)	~450–520 BTU/h
Motor Type	Single-Phase Induction (RSIR)
Displacement	~4.5 cm³
Winding Material	Copper
Pressure Charge	Factory nitrogen holding charge
Capillary Tube	0.031″ – 0.036″ (system dependent)
Compatible Refrigerator Models	Single-door fridge, minibar, beverage cooler
Temperature Function	−30°C to −10°C evaporating
With Fan or No	No fan
Commercial Use	Yes (light commercial)
Amperage (Running)	1.1 – 1.4 A
LRA (Locked Rotor Amps)	~6.5 A
Relay Type	PTC Relay
Capacitor	Not required (RSIR design)

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Electrical Configuration (RSIR System)

The GL45AN uses a Resistance Start Induction Run configuration:

• Start winding activated via PTC relay
• No run capacitor required
• Thermal overload protection integrated
• Designed for stable voltage environments

This configuration reduces component count and improves long-term reliability.

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Application Examples

This compressor is suitable for:

• Domestic refrigerators (single door)
• Hotel minibars
• Beverage display coolers
• Small medical refrigerators
• Undercounter cooling units

It is not recommended for:

• Deep freezing below −35°C
• High back pressure systems
• Large commercial freezer cabinets

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Performance Comparison (Same Class)

Model	Refrigerant	HP	Displacement
ZMC GL45AN	R134a	1/8	4.5 cc
Secop TLES5.7	R134a	1/6	5.7 cc
Embraco EM2X60	R134a	1/6	6.0 cc
Huayi HYE45	R134a	1/8	4.5 cc

The GL45AN offers lower energy consumption compared to higher-displacement compressors, making it ideal where efficiency and compact size are required.

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Replacement Compressors – Same Refrigerant (R134a)

1. Embraco EM2X45
2. Secop TLES4.8
3. Huayi HYE45
4. Donper GFF45AA
5. LG MA45LAEG

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Replacement Compressors – Other Refrigerants (With System Modification)

1. Embraco EGX70 (R600a)
2. Secop TLY5.7 (R600a)
3. Huayi HYB45 (R600a)
4. Donper GHF50 (R600a)
5. LG MA53LAG (R600a)

System oil, capillary, and dryer must be adapted.

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Engineering Advice & Best Practices

• Always replace the filter dryer when installing
• Evacuate system to below 500 microns
• Maintain condenser airflow clearance
• Match capillary length precisely
• Avoid overcharging; R134a is sensitive to charge quantity

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Key Benefits

• Low vibration & quiet operation
• Proven durability in field use
• Easy replacement compatibility
• Stable cooling under voltage fluctuation
• Widely available service parts

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Frequently Asked Question

Can the ZMC GL45AN be used in a freezer?

Yes, it can operate in light freezing applications down to approximately −30°C evaporating temperature, provided the system is correctly sized and ventilated.

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Focus Keyphrase

ZMC GL45AN compressor R134a 1/8 HP LBP refrigeration compressor for refrigerator cooling and light freezing applications replacement guide

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ZMC GL45AN Compressor R134a 1/8 HP | Technical Specs & Replacement Guide

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Professional guide to the ZMC GL45AN compressor: R134a, 1/8 HP, LBP refrigeration use, specifications, replacements, applications, and expert installation advice.

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Excerpt

The ZMC GL45AN is a hermetic refrigeration compressor designed for R134a systems in cooling and light freezing applications. With a 1/8 HP motor, LBP operation, and RSIR electrical design, it delivers stable performance, low noise, and high reliability for domestic and light commercial refrigeration equipment.

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

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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.

 

Compressor Specification

Serial	Model	HP	V/Hz	Dispt (cm3)	Cooling Capacity (ASHRAE)						Motor type	Starting Device	Starting capacitor (uF)	Running capacitor (uF)	Cooling Type
					Test Conditions:-23.3℃(-10F)
					Capacity (W)	Capacity (Btu/h)	lnput Power(W)	Current  (A)	COP	EER
L	QD25HG	1/12	220-240V/50-60Hz	2.5	55	188	52	0.55	1.05	3.61	RSIR	PTC Starting Relay	/	/	ST
	QD30HG	1/12		3.0	65	222	62	0.63	1.05	3.58	RSIR		/	/	ST
	QD35HG	1/11		3.5	75	256	71	0.68	1.05	3.60	RSIR		/	/	ST
	ADW43	1/6-		4.3	110	375	100	1.0	1.1	3.75	RSIR		/	/	ST
	ADW51	1/6		5.1	125	427	104	1.1	1.2	4.10	RSIR		/	/	ST
	ADW57	1/5-		5.7	135	461	112	1.15	1.2	4.11	RSIR		/	/	ST
MS	ADW43	1/6-		4.3	110	375	100	1.0	1.1	3.75	RSIR	PTC/Current Starting Relay	/	/	ST
	ADW51	1/6		5.1	125	427	104	1.1	1.2	4.10	RSIR		/	/	ST
	ADW57	1/5-		5.7	135	461	112	1.15	1.2	4.11	RSIR		/	/	ST
	ADW66	1/4-		6.6	165	563	132	1.2	1.25	4.27	RSIR		/	/	ST
	ADW77	1/4		7.7	185	631	148	1.4	1.25	4.27	RSIR		/	/	ST
	ADW86	1/4+		8.6	200	682	160	1.45	1.25	4.27	RSIR		/	/	ST
	ADW91	1/3-		9.1	220	751	176	1.65	1.25	4.27	RSIR		/	/	ST
LM	ADW43	1/6-		4.3	110	375	100	1.0	1.1	3.75	RSIR		/	/	ST
	ADW51	1/6		5.1	125	427	104	1.1	1.2	4.10	RSIR		/	/	ST
	ADW57	1/5-		5.7	135	461	112	1.15	1.2	4.11	RSIR		/	/	ST
	ADW66	1/4-		6.6	165	563	132	1.2	1.25	4.27	RSIR		/	/	ST
	ADW77	1/4		7.7	185	631	148	1.4	1.25	4.27	RSIR		/	/	ST
MK	ADW66	1/4-		6.6	165	563	132	1.2	1.25	4.27	RSIR		/	/	ST
	ADW77	1/4		7.7	185	631	148	1.4	1.25	4.27	RSIR		/	/	ST
	ADW86	1/4+		8.6	200	682	160	1.45	1.25	4.27	RSIR		/	/	ST
	ADW91	1/3-		9.1	220	751	176	1.65	1.25	4.27	RSIR		/	/	ST
	ADW110	3/8		11.0	270	921	215	2.05	1.25	4.28	RSIR		/	/	F
WQ	ADW91	1/3-		9.1	220	751	176	1.65	1.25	4.27	RSIR		/	/	F
	ADW110	3/8		11.0	270	921	215	2.05	1.25	4.28	RSIR		/	/	F
	ADW128	3/8+		12.8	320	1092	256	2.3	1.25	4.27	CSIR	Current  Starting Relay	80	/	F
	ADW142	1/2-		14.2	350	1194	280	2.6	1.25	4.27	CSIR		80	/	F
	ADW153	1/2		15.3	380	1297	304	2.8	1.25	4.27	CSIR		80	/	F

 

Refrigerator Compressor mainly has the following three components: box, refrigeration system and control system. The most critical of these is the refrigeration system.

Specific process–After the power is turned on, the compressor works, and the low-pressure and low-temperature gaseous refrigerant that has absorbed heat in the evaporator is sucked in. After being compressed, the temperature is 55°C-58°C and the high pressure steam, enter the condenser. Due to throttling of the capillary, the pressure is drastically reduced. Since the pressure in the evaporator is lower than the pressure in the condenser, the liquid refrigerant boils and evaporates immediately, and the heat in the absorption box becomes low pressure and low temperature vapor. It is again inhaled by the compressor.

   With this constant circulation, the internal heat of the refrigerator is continuously transferred to the outside of the box.

    Compressor (compression)—condenser (heat dissipation)—capillary (throttle)—evaporator (cold cooling)

Refrigerator Compressor  Model   E1121CZA
Application	Refrigerator/ Freezer(320L~480L)	Power	3/8 HP
Voltage	220V~240V/50HZ	Pumping capacity	8.8 Cm3
Cooling capacity	270 W	COP	1.25W/W

E1134CZA R134A 1/2HP Refrigerator Compressor