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

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Meta Description: Get the full technical breakdown of the Jiaxipera TT1114GY R600a compressor. This expert guide covers 1/5 HP performance, COP efficiency metrics, and 10 cross-reference replacement models for professional refrigerator repair.

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Tags: Jiaxipera, TT1114GY, R600a, 1/5 HP, Refrigerator Compressor, LBP Compressor, Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Embraco EMY70HSC, Secop HMK95AA, ACC HMK95AA, Donper L111CY1, LG MA110, Embraco FFI7.5HAK, Danfoss TL5G, ZMC GL90AA, Samsung MSA170, Tecumseh THB1360YS

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.

Mbsmpro.com, Siberia Compressor, GFF93AA, 1/3+ hp, Motech, Cooling, R134a, 270 W, 1.4 A, 1Ph 160‑260V 50Hz, LBP, RSIR/RSCR, −35°C to −10°C, Freezing

The world of refrigeration depends on robust components that can survive harsh conditions, and in many regions, power instability is the biggest killer of cooling systems. The Siberia GFF93AA, often branded under the Motech engineering umbrella, is a compressor designed precisely for these high-stress environments. Known as the “Siberia Copper” series, it prides itself on having 100% copper windings—a massive advantage over the aluminum windings found in cheaper units that often succumb to internal heat and early insulation breakdown.

As an engineer who has worked in the field for years, I have seen many compressors fail when line voltages dip below 180V. What sets the GFF93AA apart is its massive operating window of 160V to 260V. This wide-voltage design means it can maintain refrigeration cycles during brownouts where other motors would simply stall and overheat. Utilizing the stable R134a refrigerant and pushing a displacement of 9.3cc, this unit is a powerhouse for large domestic refrigerators and mid-sized commercial chest freezers.

Complete Technical Specifications

Parameter	Data Detail
Model	GFF93AA
Utilisation (mbp/hbp/lbp)	LBP (Low Back Pressure)
Domaine (Freezing/Cooling)	Heavy-duty Freezing & Deep Cold Storage
Cooling wattage at -23.3°C	270 Watts
Cubic feet capacity	18 to 22 Cubic Feet
Litres capacity	450 to 600 Litres
Kcal/h	232 Kcal/h
Oil Type and quantity	Ester / POE RL 10H (230 cc)
Horsepower (HP)	1/3+ HP
Refrigerant Type	R134a
Power Supply	1Ph / 160-260V / 50Hz
Cooling Capacity BTU	921 BTU/h
Motor Type	RSIR / RSCR
Displacement	9.3 cc
Winding Material	100% High-Grade Copper
Pression Charge	Low side 0.5 – 5 PSI / High side 150 PSI (operating)
Capillary Recommendation	0.036″ to 0.040″
Applicable Models	Double-door large fridges, commercial chest freezers
Temperature function	-35°C to -10°C
Fan Cooling Required	Recommended for ambient above 35°C, otherwise Static
Commercial Application	Yes (Light commercial / Household heavy duty)
Amperage (Working)	1.25 A to 1.54 A
LRA (Locked Rotor Amps)	14.0 A
Relay Type	PTC QP2-15
Capacitor Value	4 µF (450 V) optional for RSCR configuration
Origin & Exporting	Manufactured by Motech (China) – Exported globally via Agent Alfardi

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Efficiency Metrics (COP) & Load Performance

Efficiency isn’t just a number; it is how well a machine handles the physics of heat exchange. The GFF93AA shows high stability at standard boiling points for R134a.

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-35	135	115	1.17
-30	174	142	1.22
-25	230	168	1.37
-23.3 (Rated LBP)	270	185	1.46
-20	310	205	1.51
-15	390	235	1.66
-10	519	265	1.96

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Comparison: Why Choose Siberia over Standard Alternatives?

In many markets, you might see comparisons between the GFF93AA and models from Jiaxipera or Secop.

1. Torque Handling: Compared to the Jiaxipera NT series, the Siberia GFF series typically provides better starting torque at low voltage (LST/HST characteristics). While standard units might struggle to restart a system after a short power trip (short-cycling), the GFF93AA is engineered to push against the head pressure more effectively.
2. Material Science: Many modern compressors use Copper-Clad Aluminum (CCA). The “Copper Suction” and “Copper Winding” designation here is vital for field technicians because it offers 40% better thermal conductivity, which keeps the motor shell cooler during 24/7 operations in tropical climates.

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Engineering Conseil, Notices, and Maintenance

From an field engineer’s desk:

• Vacuum Requirement: Since this unit uses POE (Polyolester) oil, it is incredibly thirsty for moisture. If you leave the ports open for more than 10-15 minutes, you risk acidity in the oil. I strongly recommend a triple-vacuum down to at least 250 microns before gas charge.
• Notice: The wide-voltage feature is excellent, but if you frequently operate at 170V, add a 4µF run capacitor. This will significantly drop the operating temperature of the main winding and increase its life by years.
• Benefits: Choosing the 9.3cc displacement model for a fridge designed for 7.5cc is an “upgrading” move. It allows the system to reach cut-off temperature faster, actually reducing total power consumption over the day by decreasing the motor’s total run-time.

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What size capacitor is recommended for the Siberia GFF93AA?

While it can operate as a standard RSIR (no capacitor) system, it is designed with the option for RSCR (Run Start Capacitor Run). A 4µF 450V capacitor is the ideal specification. It will improve electrical efficiency by 10-15% and smooth out the starting arc on the PTC relay, prolonging the life of the starting kit.

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Compressor Replacements and Equivalents

5 Direct Replacements (R134a – Same Characteristics):

1. Secop/Danfoss: FR11G or GL90AA
2. Embraco: FFI 12 HBK or FFU 130 HAK
3. Tecumseh: TPH1410Y
4. Huayi: GQR90AA
5. ZMC: GL90AA

5 Cross-Refrigerant Alternatives (Requires Full Flush/Purge):

1. Donper (R600a): LU140CY
2. Embraco (R290): NEK2134U (Note: Higher starting torque)
3. Wanbao (R600a): DQH140Y
4. LG (R600a): CMA121H
5. Jiaxipera (R600a): NT1114Y

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Focus keyphrase: Siberia GFF93AA Compressor 1/3+ hp R134a 270W Technical Specifications and Professional Replacements Review

SEO title: Mbsmpro.com | Siberia GFF93AA Compressor | 1/3+ hp | R134a | 9.3cc

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Add Tags: Siberia, GFF93AA, Alfardi, Motech, R134a, 1/3+ HP, Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, GL90AA, FFI12HBK, TPH1410Y, GQR90AA, Compressor replacement, Refrigeration engineering.

Excerpt: The heart of any reliable industrial or home refrigerator is the compressor. The Siberia GFF93AA stands out as a high-displacement 1/3+ HP unit featuring genuine copper windings and a massive wide-voltage tolerance from 160V to 260V. For technicians working in harsh power zones, this R134a unit provides 270W of efficient, stable cooling power…

This is a full transcription of the Motech GFF93AA Data Sheet.

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MOTECH GFF93AA Data Sheet

Refrigeration parts and equipment

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1. BASIC DATA

1.1 OPERATION

• Application: LBP (Low Back Pressure)
• Refrigerant: R134a
• Expansion device: Capillary tube
• Cooling: Static
• Evaporating Temperature Range: -35 to -10°C (-34 to +14 °F)
• Max Ambient Temperature: 43°C (110°F)
• Max Operating Discharge Temperature (1): 120°C (248°F)
• Max Peak Discharge Temperature (1, 2): 135°C (275°F)
• Max Operating Condensing Temperature: 60°C (140°F)
• Max Peak Condensing Temperature (2): 70°C (158°F)
• Max Winding Temperature: 130°C (266°F)
• Max Impurities: 30 mg
• Max Water Content: 100 mg

1.2 COMPRESSOR

• Displacement: 9.3 cc
• Cylinder Bore: 24.4 mm
• Stroke: 19.8 mm
• Net Weight (3): –
• Shell size: High
• Oil charge: 230 cc
• Oil Type: ICI RL 10H
• Oil viscosity (4): 10 cSt
• Suction system: Semi-direct

1.3 MOTOR

• Power supply: 220-240 V
• Voltage limits: 187 – 264 V
• Frequency: 50 Hz
• Phase: 1
• Motor Type: RSIR / RSCR
• Electrical Insulation Class: B
• Locked Rotor Current at 220 V (Max value with RC): 14.2A
• Locked Rotor Current at 220 V (After 4 s with RC): 7.8A
• Locked Rotor Current at 220 V (Max value without RC): 14.0A
• Locked Rotor Current at 220 V (After 4 s without RC): 8.0A
• Main Winding Resistance at 20°C (68°F): 9.13 Ω
• Start Winding Resistance at 20°C (68°F): 14.5 Ω

(1) Measured at 5 cm from the shell with insulated thermocouples | (2) For transient conditions during “Pull Down” | (3) With oil and without external electricals | (4) Measured at 40°C (104°F)

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1.4 ELECTRICALS

Motor-protector

Feature	WANBAO	SENSATA
Type	BT110-120A61D2	4TM 308 NFBYY-53
Open Temperature	115-125 °C	115-125 °C
Close Temperature	70-52 °C	70-52 °C
U.T.C. at 70°C	2.36 A	2.34 A (AT 70°C)
Time Check Current	11 A (7.5-14 sec)	11 A (5-15 sec)

PTC starting device

Feature	WANBAO	TIANYIN
Assembly type	QP2-15	QP2-15E
PTC Pill	QP2-15	QP2-15E
Resistance at 25°C	11-19Ω	11-19Ω
V max	350 V	350 V
I max	8A	8A
Curie Temp	120°C	120°C
Dimensions	20mm (dia), 3.3mm (thk)	16mm (dia), 2.5mm (thk)

Run capacitor (optional)

• Type: Plastic case
• Capacity: 4μF
• Vmax: 450 V
• Working hours: 10,000 h at 450 V

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2. CALORIMETER DATA

Test conditions according to ASHRAE:

• Condensing temp: +55°C
• Subcooling temp: +32°C
• Superheating temp: +32°C
• Suction temp: +32°C
• Supply Voltage: 220 V / 50 Hz

2.1 CALORIMETER TEST	-30°C (Without RC)	-23.3°C (Without RC)	-10°C (Without RC)	-30°C (With RC)	-23.3°C (With RC)	-10°C (With RC)
Cooling capacity (W)	174	270	519	170	270	524
Input power (W)	142	185	265	137	174	252
COP (W)/W	1.22	1.46	1.96	1.25	1.55	2.08
Current (A)	1.09	1.25	1.52	0.81	0.95	2.08

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3. OTHER PERFORMANCES

• 3.1 Starting Test: Min. Starting Voltage (at 90°C / 5 Bar A) = 165V.
• 3.2 Calorimeter Test (GB9098): A-weighted SPL: 42 dBA | Vibration Index TVI: 0.65 mm/s.
• 3.3 Life Test: 500h Wear, 2000h High Temp, 200K On/Off Cycles (All Passed).
• 3.4 Transport Test: Not required.
• 3.5 Oil Transport Test: Not required.
• 3.6 Impact Test: Not required.

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4. COMPARISON CHART & DIMENSIONS

Brand Cross-Reference

MOTECH	POWER	EMBRACO	TECUMSEH
GFF93AA	1/3+ HP	FFI 12 HBK	TPH1410Y
GFF86AA	1/3 HP	EGAS 100 HLR	TPH1410Y
GFF75AA	1/4+ HP	EGAS 80 HLR	TSB1390Y
GFF66AA	1/4 HP	EGAS 80 HLR	TSB1380Y
GFF57AA	1/5 HP	EGAS 70 HLR	TSB1355Y / TSB1374Y
GFF44AA	1/6 HP	EMI 60 HER	THG1346Y / THG1352Y
GVM35AA	1/8 HP	EMI 80 HLR	THG1335Y
GVM30AA	1/10 HP	EM 30 HNR	THG1330Y

Dimensional Data (R134a)

Model	A ± 2.5	B ± 2.5	C ± 2.5	D ± 2.5
GFF57AA / 66AA / 75AA / 86AA	98.5	100.5	113.5	174
GFF93AA	108.5	110.5	123.5	184
BFF12AA	108.5	110.5	123.5	184
BFM93AA	98.5	100.5	113.5	174

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5. TECHNICAL DRAWING LABELS

• Air suction pipe: Φ 6.1 + 0.1 (No paint allowed in length 12mm)
• Exhaust pipe: Φ 5 – 0.1 (No paint allowed in length 12mm)
• Process pipe: Φ 6.1 + 0.1 (No paint allowed in length 12mm)
• Rating Label: Located on the side of the compressor shell.
• Serial Number: Located near the base mounting feet.

Focus Keyphrase

Jiaxipera TT1113GY Compressor 1/5 HP R600a technical specifications and professional replacement guide for domestic refrigeration and freezing systems

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Meta Description

Discover the full technical profile of the Jiaxipera TT1113GY compressor. Expert insights on this 1/5 HP R600a LBP unit, including cooling capacity, wiring, and replacement alternatives.

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Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Jiaxipera TT1113GY, R600a Compressor, 1/5 HP Compressor, HMK95AA, EMX55CLC, TLES8.7KK.3, NLX8.8KK, GLY90AA, TT1114GY, Jiaxipera Replacement, Refrigerator Repair, HVAC Expert

Excerpt

The Jiaxipera TT1113GY is a cornerstone of modern domestic refrigeration, operating as a 1/5 HP Low Back Pressure compressor optimized for R600a refrigerant. This high-efficiency unit is widely used in household refrigerators and freezers, offering a cooling capacity of 155 Watts. This guide covers all essential technical data, electrical characteristics, and professional replacement options.

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Technical Specification Table

Feature	Detailed Specification
Model	TT1113GY
Utilisation (mbp/hbp/lbp)	LBP (Low Back Pressure)
Domaine (Freezing/Cooling)	Domestic Refrigeration / Freezing
Cooling wattage at -23.3°C	155 W
Cubic feet can this compressor cool?	12 – 16 cu.ft. (depending on insulation)
Litres can this compressor cool?	300 – 450 Liters
Kcal/h	133 Kcal/h
Oil Type and quantity	Mineral / Alkylbenzene (180 ml)
Horsepower (HP)	1/5 HP
Refrigerant Type	R600a (Isobutane)
Power Supply	220–240V / 50Hz / 1 Phase
Cooling Capacity BTU	529 BTU/h
Motor Type	RSIR (Resistance Start – Inductive Run)
Displacement	8.9 cm³
Winding Material	Copper/Aluminum (OEM standard)
Pression Charge	Low side (typical 0.5 to 1.5 psi running)
Capillary Recommendation	0.031″ ID (Length varies by cabinet)
Refrigerator Compatibility	Whirlpool, Beko, Haier, Bosch, Hisense
Temperature function	-35°C to -10°C
With fan or no	Static Cooling (No fan required)
Commercial or no	Domestic Only
Amperage in function	0.8 A – 1.1 A
Lara (LRA)	6.5 A
Type of relay	PTC Starter
Capacitor	No (Usually 4µF or 5µF optional for RSCR)
Origin/Export	China / Worldwide

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Compressor Replacements (Equivalent Performance)

5 Replacements in same gas (R600a)

1. ACC / Secop: HMK95AA
2. Embraco: EMX55CLC
3. Danfoss: TLES8.7KK.3
4. GMCC: SZ90E1H
5. Wanbao: HML110YE

5 Replacements in different gas (R134a)

Note: Requires system flush, oil check, and capillary adjustment.

1. Embraco: EMI 70HER
2. ZMC: GM70AZ
3. Tecumseh: THG1365Y
4. GMCC: SE54E1J
5. Jiaxipera: N1113KZ

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The Engine of Domestic Cooling: An Expert Look at the Jiaxipera TT1113GY

In the world of modern appliances, the transition toward eco-friendly refrigerants has made the Jiaxipera TT1113GY a standard-bearer for efficiency and reliability. As someone who has spent years in the field, diagnosing cooling cycles and performing heart transplants on refrigerators, I can tell you that this 1/5 HP unit is a workhorse designed for longevity—provided it is handled with professional care.

The TT1113GY is specifically engineered for Low Back Pressure (LBP) applications. This means it thrives in environments where it needs to pull heat out of a frozen space and maintain temperatures well below zero. What makes this model stand out in the current market is its optimization for R600a (Isobutane).

Performance Metrics and Thermodynamic Efficiency

Understanding the efficiency of a compressor requires looking at the Coefficient of Performance (COP). The TT1113GY is designed to provide maximum cooling output while minimizing electricity draw. This is vital for modern energy-star ratings.

Efficiency Metrics (COP) Table
| Evaporating Temp (°C) | Cooling Capacity (Watts) | Power Consumption (Watts) | COP (W/W) |
| :— | :— | :— | :— |
| -30 | 108 | 92 | 1.17 |
| -25 | 142 | 105 | 1.35 |
| -23.3 (Standard) | 155 | 112 | 1.38 |
| -20 | 185 | 120 | 1.54 |
| -15 | 240 | 135 | 1.77 |
| -10 | 310 | 150 | 2.06 |

Comparison: Jiaxipera TT1113GY vs. Standard R134a Units

When comparing this R600a unit to older R134a compressors like the GM70AZ, there are distinct differences. The R600a molecules are larger, and the compressor runs at a lower discharge pressure. This results in quieter operation and a significant reduction in environmental impact (Global Warming Potential). However, the TT1113GY uses about 40-50% less refrigerant charge by weight than an R134a counterpart, making precise charging critical for field technicians.

Expert Insights: Field Worker Perspective

If you are replacing a compressor, here is what my experience has taught me about the TT1113GY:

1. Cleanliness is Godliness: Because R600a uses mineral or alkylbenzene oil, moisture is your worst enemy. Always replace the filter drier and use a high-grade vacuum pump.
2. Capillary Precautions: The TT1113GY has a 8.9cc displacement. If you are retrofitting this into a cabinet that previously held a smaller 7.5cc unit, monitor your frost pattern closely; you may need to adjust the capillary length to prevent liquid slugging back to the compressor.
3. Startup Reliability: The RSIR motor is simple and effective. If you encounter startup issues, 90% of the time it is a failing PTC relay rather than the windings themselves.

Pro Tip for Longevity

Ensure the condenser coils are free of dust. While the TT1113GY is a “static cooling” unit (often not needing a fan), it relies on convection. In tight kitchen cabinets, heat buildup is the number one killer of these compressors. Giving the unit “room to breathe” will extend its life by years.

Internal Electrical Configuration (RSIR)

codeText

[Overload Protector]
             |
             C (Common)
            / 
           /   
 (Main)   M     S (Start)
              /
            PTC (Relay)
             |
          [Line In]

(This schematic represents the typical PTC/RSIR wiring for the TT1113GY without a run capacitor.)

Focus Keyphrase: Refrigerator Suction Line Frost and Capillary Tube Length Optimization

SEO Title: Mbsm.pro, Impact of Capillary Tube Length on Suction Line Frosting

Meta Description: Is a 2-meter capillary tube causing ice on your suction line? Learn how capillary length, diameter, and refrigerant charge affect compressor health and cooling efficiency.

Slug: refrigerator-capillary-tube-length-frost-suction-line

Tags: Mbsmgroup, Mbsm.pro, mbsmpro.com, mbsm, Capillary Tube, Refrigeration Repair, Suction Line Frost, Compressor Maintenance, R134a, R600a, HVAC Technician Tips

Excerpt: Troubleshooting frost on a refrigerator’s suction line requires a deep understanding of pressure drops. If a 2-meter capillary tube was recently installed, it might be the primary culprit behind liquid floodback. This article explores the technical relationship between expansion device length, refrigerant flow, and the critical balance needed to protect the compressor from terminal damage.

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Mbsm.pro, Refrigeration, Capillary Tube, 2 Meters, Suction Line Frost, R134a, R600a, Compressor Protection

In the world of field refrigeration, precision is the difference between a long-lasting appliance and a catastrophic compressor failure. One of the most common issues encountered after a capillary tube replacement is the appearance of <u>heavy frost or ice on the suction (return) line</u>. While many technicians immediately jump to the conclusion of an overcharge, the physical dimensions of the capillary tube—specifically a length of 2 meters—often play a more significant role than realized.

The Physics of Restriction: Why Length Matters

The capillary tube acts as the fixed orifice expansion device. Its job is to create a specific “restriction” or pressure drop between the high-pressure condenser side and the low-pressure evaporator side. This restriction is governed by three variables: <u>Internal Diameter (ID)</u>, <u>Total Length</u>, and the <u>Friction Factor</u> of the refrigerant.

When a technician installs a capillary tube that is too short (such as 2 meters for a system designed for 3 meters), the following sequence occurs:

1. Reduced Resistance: The shorter path offers less friction.
2. Increased Mass Flow: More liquid refrigerant enters the evaporator than the system can effectively boil off.
3. Liquid Floodback: Because the evaporator cannot convert all the liquid to gas, the “excess” liquid refrigerant exits the evaporator and enters the suction line.
4. Frost Formation: The liquid refrigerant continues to boil inside the suction pipe, absorbing heat from the ambient air and causing moisture to freeze instantly on the exterior of the pipe.

Technical Comparison: Capillary Requirements by Compressor Capacity

To understand why 2 meters might be insufficient, let us look at standard industry benchmarks for R134a systems (the most common domestic setup).

Compressor Horsepower (HP)	Recommended Length (Meters)	Standard Diameter (Inches)	Typical Result of 2m Length
1/10 HP to 1/8 HP	3.0m – 3.5m	0.026 – 0.028	Severe Frost / Slugging
1/6 HP to 1/5 HP	2.8m – 3.2m	0.031	Moderate Frost on Return
1/4 HP to 1/3 HP	2.5m – 3.0m	0.036	Marginal Balance

Analysis of the 2-Meter Installation

If you have utilized a 2-meter capillary, you are likely operating at a length that is 20% to 40% shorter than the engineering specifications for most domestic refrigerators.

• Scenario A: If the diameter is wide (e.g., 0.036″), 2 meters will almost certainly cause ice on the suction line because the “restriction” is too weak.
• Scenario B: If the diameter is very narrow (e.g., 0.026″), 2 meters might work, but it is still risky as it leaves no room for error in the refrigerant charge.

The “Overcharge” Illusion

A significant trap for field workers is attempting to “fix” the suction line frost by removing refrigerant. While this may clear the frost, it often results in an <u>underfed evaporator</u>, meaning the freezer will not reach the desired -18°C or -24°C. The system becomes inefficient, and the compressor runs longer, increasing electricity consumption.

Comparative Symptoms: Capillary Length vs. Refrigerant Overcharge

Symptom	Short Capillary (2m)	Refrigerant Overcharge
Suction Line	Frosted / Icy	Sweating or Icy
Condenser Temp	Lower than normal	Extremely Hot
Evaporator Pattern	Partial Frosting / Uneven	Full Frosting
Amperage Draw	Higher than nominal	Significantly High
Cooling Speed	Slow pull-down	Rapid but unstable

Expert Engineering Notice and Advice

As an expert who has spent years diagnosing these cycles, I strongly advise the following “Rule of Thumb” for field repairs:

1. <u>Always Match the Original:</u> If the original capillary was 3 meters, do not settle for 2 meters. The extra length provides the necessary “buffer” to ensure only superheated vapor reaches the compressor.
2. <u>The Suction-Capillary Heat Exchanger:</u> Ensure that the capillary tube is soldered or wrapped tightly around the suction line for at least 1 meter. This sub-cools the liquid and helps evaporate any liquid returning in the suction line, preventing frost.
3. <u>Vacuum is King:</u> When changing a capillary, a deep vacuum (below 500 microns) is mandatory. Any moisture left in the system will freeze at the exit of your new 2-meter tube, causing a partial blockage that mimics a “short capillary” symptom.

Final Engineering Verdict

A 2-meter capillary tube is generally too short for standard 1/6 to 1/4 HP domestic refrigerators using R134a. This lack of length reduces the pressure drop, leading to liquid refrigerant exiting the evaporator. To resolve this without replacing the tube again, you can try:

• Adding a “pigtail” or extension to the capillary to reach at least 3 meters.
• Ensuring maximum thermal contact between the capillary and the suction line.
• Precisely weighing the charge according to the manufacturer’s nameplate (grams/ounces) rather than relying on pressure gauges alone.

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Mbsmpro.com, Compressor, QB110C25CAX0, 1/3 hp, Panasonic, R134a, 220V, LBP, Refrigerator, Freezer

The Panasonic QB110C25CAX0 stands as a heavyweight in the world of domestic and light commercial refrigeration. Specifically engineered for Low Back Pressure (LBP) applications, this reciprocating compressor is the heart of many high-capacity household refrigerators and deep freezers. Operating on R134a refrigerant, it balances environmental standards with the robust cooling performance required for tropical climates.

The “QB” series by Panasonic is renowned for its durability. With a displacement of 11.0 cm³, this model provides the necessary “punch” to pull down temperatures quickly in units ranging from 400 to 600 liters. Its design focuses on thermal protection and energy efficiency, ensuring that the motor remains cool even during extended run cycles in demanding environments.

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Technical Specifications and Performance Data

Feature	Specification
Model	QB110C25CAX0
Utilization	LBP (Low Back Pressure)
Application Domain	Freezing / Cooling
Cooling Wattage (-23.3°C)	280 W
Cubic Feet Capacity	18 – 22 cu.ft
Liters Capacity	500 – 620 L
Cooling Capacity (Kcal/h)	241 Kcal/h
Oil Type & Quantity	POE or Mineral (250ml – 280ml)
Horsepower (HP)	1/3 HP
Refrigerant Type	R134a
Power Supply	220V-240V / 50-60Hz / 1PH
Cooling Capacity (BTU/h)	955 BTU/h
Motor Type	RSIR (Resistive Start-Inductive Run)
Displacement	11.0 cm³
Winding Material	Copper
Amperage (RLA)	1.4 A – 1.6 A
LRA (Locked Rotor Amps)	12.0 A
Relay Type	PTC / Electromagnetic
Capacitor	Generally not required (RSIR), optional for CSIR
Fan Requirement	Static cooling (Natural) / Fan cooling recommended for tropics
Commercial Status	Semi-Commercial / Heavy Domestic
Country of Origin	Malaysia

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Efficiency Metrics (COP) & Performance Curve

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-30	185	170	1.09
-25	255	195	1.31
-23.3 (Standard)	280	205	1.37
-20	340	225	1.51
-15	445	250	1.78
-10	570	280	2.04

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Replacement Cross-Reference

1. Same Refrigerant (R134a) – 1/3 HP Substitutes

• Embraco: FFI10HBX or FG100HAK
• Secop (Danfoss): TLES10KK.3
• Tecumseh: AE1390Y / AE4440Y
• LG: MA110LBJG
• Jiaxipera: N1114GZ

2. Alternative Refrigerant (R600a/R12/R22 Conversions)

• Embraco (R600a): VEMZ 9C (Inverter tech required)
• Panasonic (R600a): QB110G Series (Check displacement compatibility)
• Secop (R600a): BD110F
• Tecumseh (R12 Old): AE1390AS (Requires system flush)
• Samsung (R134a): MK190C-L2U

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Engineering Insight: Why Choose the QB110?

When comparing the QB110 (1/3 HP) to its smaller sibling, the QB77 (1/5+ HP), the difference in volumetric efficiency is striking. While the QB77 is perfect for standard kitchen fridges, the QB110 is designed for “chest” freezers or large side-by-side units.

Pro Tip for Technicians:

Always ensure the capillary tube is sized correctly for a 1/3 HP load. For an LBP R134a setup with this compressor, a capillary of 0.036 ID is generally the starting point. Using a 1/5 HP capillary on this motor will cause high head pressure and premature compressor failure.

Maintenance Notice: Since this is an R134a system, moisture is your greatest enemy. Always replace the filter drier and pull a vacuum below 500 microns before charging.

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Excerpt: The Panasonic QB110C25CAX0 is a high-performance 1/3 HP reciprocating compressor designed for Low Back Pressure (LBP) applications. Operating on R134a refrigerant, it delivers 280W of cooling capacity at -23.3°C, making it ideal for large domestic freezers and commercial coolers. This guide provides technical data, COP efficiency tables, and compatible replacement models for technicians.

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Best Washing Machines for Cleaning Performance Maintenance and Longevity 2026

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Excerpt

Selecting a washing machine in 2026 requires balancing advanced technology with mechanical endurance. This professional guide evaluates the market’s leading brands—LG, Bosch, and Samsung—based on cleaning efficiency, ease of repair, and structural longevity. We break down the engineering behind Direct Drive motors and high-build quality chassis to help you make an investment that lasts.

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The Ultimate Guide to High-Endurance Washing Machines: Performance and Engineering

In the modern household, a washing machine is more than an appliance; it is a long-term investment. As an engineer who has spent years on the field analyzing mechanical wear and electronic failures, I can tell you that the “best” machine isn’t just the one with the most buttons. It is the one with the highest structural integrity and serviceable components.

1. The Engineering Leaders: LG vs. Bosch vs. Samsung

When evaluating a machine for Longevity, we look at the drive system. When evaluating for Cleaning, we look at drum agitation patterns. When evaluating for Maintenance, we look at the accessibility of the pump and the availability of spare parts.

LG: The King of Stability (Direct Drive)

LG revolutionized the market with the Inverter Direct Drive motor. By eliminating the belt and pulley system, they removed the most common point of mechanical failure.

• Cleaning: Uses 6 Motion technology to simulate hand-washing.
• Maintenance: Exceptionally easy to service. The motor is mounted directly to the back of the drum.

Bosch: The German Standard for Durability

Bosch, particularly the Series 6 and 8, remains the benchmark for build quality. Their AntiVibration side walls are not just for aesthetics; they reduce the centrifugal stress on the internal bearings.

• Cleaning: Precise sensor-controlled washing (ActiveWater Plus).
• Maintenance: Higher quality parts, though internal access requires more precision.

Samsung: The Innovation Powerhouse

Samsung focuses on the chemical efficiency of the wash through EcoBubble technology, which allows for deep cleaning at lower temperatures, preserving the life of both the clothes and the heating element.

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2. Technical Comparison Table

Characteristic	LG (V-Series)	Bosch (Series 6/8)	Samsung (AddWash)
Motor Type	Inverter Direct Drive	EcoSilence Drive (BLDC)	Digital Inverter
Transmission	Gearless / No Belt	Belt Driven (High Torque)	Belt Driven
Chassis Stability	High (AI DD)	Extreme (AntiVibration)	High
Cleaning Tech	TurboWash 360	4D Wash System	EcoBubble / AI Wash
Spare Parts	Widely Available	Specialized / Premium	Widely Available

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3. Maintenance Accessibility and Longevity Metrics

A machine that cannot be repaired is a liability. In the field, we categorize machines by their “Repairability Score.”

Comparison of Life-Cycle Factors

Brand	Bearing Durability	Control Board Reliability	Pump Accessibility
LG	9/10	8/10	Front-Access Filter
Bosch	10/10	9/10	Bottom-Front Access
Samsung	8/10	7/10	Easy Access

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4. Engineering Advice: Professional Tips for Users

• The Leveling Rule: 90% of bearing failures are caused by improper leveling. Use a spirit level to ensure all four feet are perfectly balanced.
• Detergent Discipline: Excessive foam (from using too much detergent) acts as a brake on the motor and can leak into the electronics.
• The “Hand” Space: Never pack the drum. You must be able to fit a vertical palm between the top of the laundry and the drum ceiling to protect the suspension springs.

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5. Electrical Protection Schema

For areas with unstable power grids, protecting the PCBA (Printed Circuit Board Assembly) is vital. Below is the conceptual protection layout:

• Input (220V 50Hz) → Surge Protector (External) → Internal Noise Filter → Main PCB → Inverter Board → Motor.

Always ensure the outlet is grounded to prevent static buildup on the stainless steel drum.

Mbsmpro.com, Compressor, JM1080Y, 1/8 hp, Jiaxipera, Cooling, R600a, 100 W, 0.6 A, 1Ph 220–240V 50Hz, LBP, RSCR, -35°C to -10°C, cooling or freezing

Jiaxipera JM1080Y Technical Specifications

This compressor is a high-efficiency model designed for R600a refrigerant and Low Back Pressure (LBP) applications.

Compressor Performance Data

• Horsepower (HP): Rated at approximately 1/8 HP (or 1/8+ HP).
• Cooling Capacity: Reaches up to 100 Watts (approximately 341 BTU/h) according to ASHRAE standards.
• Displacement: 6.0 $cm^3$.
• Refrigerant Type: R600a (Isobutane).

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Recommended Capillary Tube Sizes

To achieve the best performance in domestic refrigeration units, use the following specifications:

• Primary Option: 0.031 inch (0.8 mm) diameter with a length of 3 meters.
• Secondary Option: 0.028 inch (0.7 mm) diameter with a length of 2.5 meters.

Technical Installation Notes

• Precision Charging: Because R600a is used, the system must be charged strictly by weight (in grams) as indicated on the appliance’s data plate.
• Sensitivity: This refrigerant is highly sensitive to even minor deviations in gas volume.
• Vacuum Process: A thorough vacuum (20–30 minutes) is mandatory to ensure the system is completely free of air and moisture before charging.

The refrigeration industry relies on precision components to maintain efficiency and food safety. Among these, the Jiaxipera JM1080Y stands out as a high-performance, hermetic reciprocating compressor engineered for modern domestic appliances. Designed for low-back-pressure (LBP) applications, this unit is commonly found in energy-efficient refrigerators and freezers where quiet operation and low energy consumption are paramount.

Operating on R600a (Isobutane), the JM1080Y reflects the global shift toward environmentally friendly refrigerants with low global warming potential. Its design incorporates a robust motor and optimized internal mechanics to ensure longevity and consistent cooling capacity even under varying thermal loads.

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Technical Specifications: Jiaxipera JM1080Y

Feature	Specification
Model	JM1080Y
Utilisation (mbp/hbp/lbp)	LBP (Low Back Pressure)
Domaine (Freezing/Cooling)	Freezing and Cooling
Cooling wattage at -23.3°C	100 W
Cubic feet (approx. cooling capacity)	6.5 to 8.5 cu. ft.
Litres (approx. cooling capacity)	185 to 240 Liters
Kcal/h	86 Kcal/h
Oil Type and Quantity	Mineral Oil / 180 ml
Horsepower (HP)	1/8 hp
Refrigerant Type	R600a
Power Supply	220–240V / 50Hz
Cooling Capacity BTU/h	341 BTU/h
Motor Type	RSCR (Resistance Start – Capacitor Run)
Displacement	6.2 cm³
Winding Material	Copper
Pression Charge	Low Pressure
Capillary (Suggested)	0.026″ – 0.031″
Refrigerator Models	Bosch, Haier, Samsung, Beko, Hisense
Temperature Function	-35°C to -10°C
With fan or no	Static (Natural cooling)
Commercial or no	No (Domestic / Household)
Amperage in function	0.55 A – 0.6 A
LRA (Locked Rotor Amps)	4.6 A
Type of relay	PTC Starter
Capacitor Value	2.5 µF / 450V
Country of Origin	China

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Efficiency Metrics (COP) & Performance Data

The coefficient of performance (COP) is a critical indicator of how much cooling work the compressor does relative to the electrical energy it consumes.

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-35	58	51	1.14
-30	76	60	1.27
-23.3 (Standard)	100	68	1.47
-20	118	74	1.59
-15	146	82	1.78
-10	180	92	1.96

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Comparison: JM1080Y vs. Industry Standard 1/10 HP Units

While many 1080 models are rated at 1/10 HP, the JM1080Y is frequently categorized as a 1/8 HP unit due to its higher displacement (6.2 cm³) compared to the standard 5.5 cm³ found in models like the NE1080Y. This extra displacement provides a higher cooling reserve, making it more resilient in high-ambient temperature conditions.

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Replacement Cross-Reference

5 Replacements (Same Gas: R600a)

• Embraco: EMX32CLC
• Secop (Danfoss): TLES5.7KK.3
• Huayi: HYE55Y
• Donper: A90CY
• LG: CMA057LBJH

5 Replacements (Other Gas: R134a)

Note: Converting systems between refrigerants requires a total oil flush and system cleaning.

• Jiaxipera: ND1080Y
• Embraco: EMT32HLP
• Secop: TLS5F
• Cubigel: GL45AA
• Tecumseh: THG1335YS

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Expert Engineering Advice & Notice

1. Refrigerant Safety: R600a is highly flammable. Always ensure there are no ignition sources in the work area and use a vacuum pump specifically rated for hydrocarbons.
2. Vacuum & Moisture: A deep vacuum of 500 microns or less is mandatory. Mineral oil in R600a systems is sensitive to moisture, which can cause internal acid formation.
3. Capillary Selection: If replacing a compressor with a different brand, always verify the capillary tube size. A mismatch can lead to liquid slugging or poor evaporator utilization.
4. Static Cooling: This compressor is designed for static cooling. Do not enclose it in a tight space without adequate airflow, as overheating will drastically reduce the lifespan of the motor windings.

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Excerpt: The Jiaxipera JM1080Y is a high-performance 1/8 hp compressor specifically designed for R600a refrigerant in domestic LBP applications. With a cooling capacity of 100W and a displacement of 6.2 cm³, it provides a quiet, energy-efficient solution for modern refrigerators. This guide covers technical data, performance metrics, and professional field advice for technicians.

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Donper ETK130L Compressor 1/4 HP R600a LBP Specifications and Professional Technical Guide for Refrigeration Engineers

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Technical deep-dive into the Donper ETK130L compressor. Includes 1/4 HP R600a performance charts, cooling capacity, electrical schematics, and expert cross-reference guides.

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Excerpt

The Donper ETK130L compressor is a high-efficiency 1/4 HP unit designed for low back pressure applications using R600a refrigerant. This article provides a comprehensive technical breakdown, including cooling capacity, electrical schematics, and cross-reference replacements. Ideal for technicians and engineers seeking precise data for maintenance and system optimization in domestic and light commercial refrigeration.

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Donper ETK130L: The Engineering Standard for Modern R600a Refrigeration

In the evolving landscape of domestic cooling, the Donper ETK130L stands as a testament to efficient, low-impact refrigeration. As a seasoned technician who has spent years in the field, I can tell you that transitioning to R600a (Isobutane) systems required a shift in mindset. The ETK130L is a high-performance 1/4 HP hermetic reciprocating compressor that has become a staple in large-capacity domestic freezers and side-by-side refrigerators.

This unit isn’t just about moving gas; it’s about thermodynamic precision. Engineered by the Huangshi Dongbei Electrical Corp, it targets Low Back Pressure (LBP) environments, ensuring that even when the mercury rises outside, the internal temperatures stay locked in the deep-freeze zone.

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Comprehensive Technical Data

Feature	Specification
Model	ETK130L
Utilisation (mbp/hbp/lbp)	LBP (Low Back Pressure)
Domaine (Freezing/Cooling)	Freezing / Deep Cold Storage
Cooling wattage at -23.3°C	220 Watts
Cubic feet can this compressor cool?	16 to 20 Cubic Feet
Litres can this compressor cool?	450 to 550 Liters
Kcal/h	189 Kcal/h
Oil Type and quantity	Mineral / POE – 180ml
Horsepower (HP)	1/4 HP
Refrigerant Type	R600a (Isobutane)
Power Supply	220-240V / 50Hz / 1Ph
Cooling Capacity BTU	750 BTU/h
Motor Type	RSCR (Resistive Start – Capacitive Run)
Displacement	13.0 cm³
Winding Material	High-Grade Copper
Pression Charge	Low Pressure (Suction)
Capillary	0.031″ / 0.8mm (Approx. 3 meters)
Model Fridge Compatibility	Large Chest Freezers, Samsung/LG Style Fridges
Temperature function	-35°C to -10°C
With fan or no	Generally Static (Forced air optional)
Commercial or no	Domestic / Light Commercial
Amperage in function	1.1 A
LRA (Locked Rotor Amps)	8.2 A
Type of relay	PTC (Positive Temperature Coefficient)
Capacitor or no and valeur	Run Capacitor: 4µF or 5µF
Country of origin	China

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Efficiency Metrics & Thermodynamic Performance (COP)

Understanding the Coefficient of Performance (COP) is critical for any engineer looking to optimize energy star ratings. Below is the performance curve for the ETK130L at various evaporating stages.

Shutterstock

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-35	128	118	1.08
-30	165	135	1.22
-23.3 (Standard)	220	155	1.42
-20	258	168	1.54
-15	315	185	1.70
-10	385	205	1.88
0	540 (N/A for LBP)	—	—
4	—	—	—
10	—	—	—

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Electrical Schematic: RSCR Configuration

The ETK130L typically utilizes an RSCR (Resistive Start – Capacitive Run) setup to maximize energy savings. Here is the logical wiring layout:

1. Common (C): Connects to the Overload Protector (OLP).
2. Main/Run (R): Connects directly to the Neutral line.
3. Start (S): Connects through the PTC Relay.
4. Run Capacitor: Wired across the Start and Run terminals of the PTC relay to maintain current phase alignment during operation, significantly lowering the running amperage.

Field Note: If you find the compressor “clicking” without starting, check the 4µF capacitor. A failed capacitor in an RSCR system often prevents the motor from overcoming its initial torque requirements.

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Comparative Analysis: R600a vs. R134a Equivalents

When comparing the ETK130L (R600a) to an older R134a unit like the GP12, several differences emerge:

• Operating Pressure: The ETK130L operates under a vacuum on the suction side or at very low positive pressure. R134a units run at much higher pressures.
• Lubrication: R600a is highly miscible with mineral oil, whereas R134a strictly requires synthetic POE/PAG oils.
• Energy Consumption: The ETK130L generally consumes 10-15% less electricity than its R134a counterpart for the same cooling output.

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Cross-Reference Replacement Guide

5 Replacements (Same Gas: R600a)

1. Secop (Danfoss): NLE13KK.4
2. Embraco: EMX70CLC
3. Jiaxipera: NT1114Y
4. Huayi: HYB130MHU
5. LG: CMA121LHEG

5 Replacements (Alternative Gas: R134a)

Note: Using these requires a complete system flush and oil change.

1. Embraco: FFI10HAK (1/3 HP to match R600a displacement)
2. Secop: TLES10KK.3
3. ZMC: GL90AA
4. Donper: GP12TG
5. Tecumseh: THB1390YS

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Engineering Advice & Maintenance Notice

• Safety: R600a is flammable. Never use a standard piercing valve for long-term service. Brazing should only be performed after ensuring the system is completely purged with Nitrogen.
• Vacuum Depth: Aim for 200 microns. Moisture is the enemy of the long-term reliability of the internal valves.
• Charging: Always charge by weight using a digital scale. R600a systems are extremely sensitive; even an overcharge of 5 grams can cause liquid slugging.

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Technical Specifications Table

Feature	Details
Model	VMH1111Y
Utilisation	LBP (Low Back Pressure)
Domaine	Domestic Freezing / Deep Cooling
Cooling Wattage at -23.3°C	156 W (at maximum frequency)
Cubic feet capacity	18 – 22 cu.ft. (depending on insulation)
Litres capacity	500 – 600 Liters
Kcal/h	134 Kcal/h
Oil Type and Quantity	POE (Polyolester) / 220ml
Horsepower (HP)	1/5 HP (Equivalent)
Refrigerant Type	R600a (Isobutane)
Power Supply	230V ~ 22-75Hz (Inverter)
Cooling Capacity BTU	532 BTU/h
Motor Type	BLDC (Brushless DC Motor)
Displacement	11.1 $cm^3$
Winding Material	High-Grade Copper
Pression Charge	1.5 – 2.5 Bar (Low Side)
Capillary Recommendation	0.031″ (0.78mm) x 3.0 meters
Compatible Refrigerators	Sharp, Toshiba, Panasonic High-End Inverter Models
Temperature Function	-35°C to -15°C
Fan Requirement	No (Static cooling, but fan improves efficiency)
Commercial Application	No (Domestic Premium)
Amperage in Function	0.8A to 1.4A (Variable)
L.R.A (Locked Rotor Amps)	4.5A (Electronic limited)
Type of Relay	Inverter Controller Module (Electronic Board)
Capacitor Included	Not applicable (Inverter controlled)
Country of Origin	China (Jiaxipera) / Exported Globally

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Compressor Replacement Guide

5 Replacements (Same Gas: R600a)

1. Embraco: FMXA9C
2. Secop: FMXA6C
3. LG: BMA098NHMV
4. Panasonic: DH45V11D
5. Samsung: NC4V121

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

1. Embraco: FFI 7.5HAK (Fixed speed conversion required)
2. Tecumseh: THG1365YS
3. GMCC: PZ70H1Z
4. Secop: TLES7.5KK.3
5. ZMC: GL70AA

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Efficiency Metrics (COP) Performance Data

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-35	82	68	1.20
-30	110	80	1.37
-25	142	92	1.54
-23.3	156	98	1.59
-20	185	108	1.71
-15	230	125	1.84
-10	285	145	1.96

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Mastering Efficiency: The Jiaxipera VMH1111Y Inverter Compressor

The modern refrigeration landscape is shifting away from the loud, “clunky” on-off cycles of the past. As a field technician who has worked on hundreds of high-end Sharp and Toshiba units, I can tell you that the Jiaxipera VMH1111Y represents the gold standard of variable-speed technology. This isn’t just a motor; it’s a precision instrument designed for energy savings and food preservation.

Why Variable Speed Matters

Unlike standard compressors that run at 100% or 0%, this BLDC motor operates between 22Hz and 75Hz. When the fridge door stays closed, the compressor slows down to a whisper, consuming barely more electricity than a lightbulb. When you load groceries, it ramps up to 75Hz to pull the temperature down instantly.

Engineering Comparison: VMH1111Y vs. Standard Fixed Speed

Feature	Jiaxipera VMH1111Y (Inverter)	Standard 1/5 HP (Fixed Speed)
Energy Consumption	Up to 40% lower	High (Cycle start-up peaks)
Noise Level	35-38 dB	42-45 dB
Temperature Swing	±0.5°C	±2.0°C
Refrigerant	R600a (Eco-friendly)	R134a (Older models)

Expert Field Advice

If you are a technician replacing this unit, remember: You cannot bypass the inverter board. Testing this compressor requires an inverter tester or checking the 3-pin UVW resistance (it should be balanced). Because it uses R600a (Isobutane), safety is paramount. Always use a vacuum pump and avoid open flames—iso-butane is flammable, and professional “no-flame” joining techniques (like Lokring) or careful brazing with proper ventilation are mandatory.

Technician’s Tip: Check the inverter controller first. Often, the compressor is fine, but the electronic module on the side of the unit has failed due to power surges.

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Mbsmpro.com, Compressor, ES7FT.4, 1/5 hp, Secop, Cooling, R134a, 147 W, 1.1 A, 1Ph 220‑240V 50Hz, LBP, RSIR, −35°C to −10°C, Static Cooling

The Secop ES7FT.4 represents a pinnacle of energy-optimized engineering for tropical refrigeration environments. Designed specifically for low back pressure (LBP) applications, this hermetic reciprocating compressor is a reliable workhorse for household refrigerators and small commercial freezers. Operating on R134a refrigerant, it balances thermal efficiency with the robust durability required for high-ambient temperature regions.

Technical Specification Table

Attribute	Details
Model	ES7FT.4 (102G4707)
Utilisation	LBP (Low Back Pressure)
Domaine	Freezing / Deep Cooling
Cooling Wattage at -23.3°C	147 Watts (CECOMAF)
Cubic Feet Capacity	Approx. 7 – 10 cu.ft
Liters Capacity	200 – 300 Liters
Kcal/h	126 kcal/h
Oil Type & Quantity	Polyolester (POE) / 180 cm³
Horsepower (HP)	1/5 HP
Refrigerant Type	R134a
Power Supply	220-240V / 50Hz / 1Ph
Cooling Capacity BTU	502 BTU/h
Motor Type	RSIR (Resistance Start – Induction Run)
Displacement	5.70 cm³
Winding Material	Copper
Pression Charge	Low Pressure Side
Capillary Recommendation	0.031″ or 0.8mm (application dependent)
Appliance Type	Domestic Fridge, Chest Freezer, Water Dispenser
Temperature Function	-35°C to -10°C
Cooling System	Static (S)
Commercial Class	Semi-Commercial / Residential
Amperage (RLA)	1.1 A
LRA (Locked Rotor Amps)	5.4 A
Type of Relay	PTC Starter
Capacitor	N/A (RSIR Configuration)
Country of Origin	Slovakia

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Efficiency Metrics (COP) & Performance Data

The efficiency of the ES7FT.4 is measured by its Coefficient of Performance (COP). Below is the performance breakdown at various evaporating temperatures (Condensing Temp at +55°C).

Evaporating Temp (°C)	Cooling Capacity (Watts)	Power Consumption (Watts)	COP (W/W)
-35	71.6	107	0.67
-30	99.5	125	0.80
-23.3 (Standard)	147	148	0.99
-20	176	160	1.10
-15	228	179	1.27
-10	290	200	1.45

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Comparison with Alternative Models

When comparing the ES7FT.4 to other popular 1/5 HP units, we see distinct differences in displacement and energy draw. For instance, the ZMC GM70AZ offers similar wattage but often utilizes different winding resistances. The Secop ES series is specifically “Energy Optimized,” meaning it prioritizes a lower amperage draw during the long run cycles typical of LBP freezing.

Professional Recommendations & Field Notice

As an expert in the field, I recommend the following for any technician installing the ES7FT.4:

1. Vacuum Procedure: Always achieve a vacuum of at least 500 microns. R134a and POE oil are highly hygroscopic; moisture will lead to acid formation and premature motor failure.
2. Filter Drier: Replace the filter drier (minimum 15g-20g XH-9) every time the system is opened.
3. Start Components: If the compressor fails to start in high-heat environments, ensure the PTC starter is not cracked. These units rely on a clean electrical signal to engage the start winding.

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Compressor Replacements (Cross-Reference)

5 Direct Replacements (R134a)

• Embraco: EMT6170Z or EMY70HSC
• Danfoss: TLS7F
• ZMC: GL70AA
• Tecumseh: THG1365Y
• Jiaxipera: ND1111Y

5 Replacements (Alternative Gas – R600a)

Note: Requires complete system flushing and capillary adjustment.

• Secop: TLES7.5KK.3
• Embraco: EMX70CLC
• ACC/Seko: HMK80AA
• Donper: L76CZ1
• Huayi: HYE69Y

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