Excellent GS66AZ Compressor Technical Specifications, BIG 1/6 HP, 6.6 cm3
The GS66AZ compressor from Excellent is a workhorse in the domestic and light commercial refrigeration sector, engineered for reliable performance in low-temperature applications such as standard freezers and smaller display units. This hermetic reciprocating unit…
| Parameter | Specification for GS66AZ |
|---|---|
| Model | GS66AZ |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Freezing / Low-Temperature Refrigeration |
| Oil Type and Quantity | Polyester (POE) Oil, specific quantity as per manufacturer datasheet (typically ~350ml) |
| Horsepower (HP) | Approximately 1/5 HP |
| Refrigerant Type | R134a |
| Power Supply | 220-240V ~ 50/60Hz, 1 Phase |
| Cooling Capacity BTU | To be confirmed from official performance curves (est. ~700-900 BTU/hr @ LBP conditions) |
| Motor Type | RSIR (Resistance Start Induction Run) |
| Displacement | Model-specific (refer to manufacturer data) |
| Winding Material | Copper |
| Pression Charge | Designed for low evaporating pressure applications |
| Capillary | System-dependent; must be matched to the condenser and evaporator for optimal performance. |
| Modele Frigo/Refrigerator Compatibility | Designed for low-temperature compartments in domestic refrigerators, standalone freezers, and commercial display freezers. |
| Temperature function | Optimal performance between -30°C to -10°C evaporating temperature range. |
| With fan or no | Typically used in fan-cooled condenser systems. |
| Commercial or no | Yes, Light Commercial / Heavy Domestic. |
| Amperage in function | Approx. 1.3 – 1.5 A at rated voltage and load. |
| LRA (Locked Rotor Amps) | To be confirmed from manufacturer label (typically 6-8 times running amps). |
| Type of relay | PTC (Positive Temperature Coefficient) Start Relay. |
| Capacitor or no and value | No run capacitor (RSIR design). PTC relay provides starting assistance. |
| 5 Compressor replacements of same value in same gas (R134a) | GN66AZ, GE66AZ, GR66AZ, GJ66AZ, GP66AZ (Always verify model suffixes for exact electrical and mechanical compatibility). |
| 5 Compressor replacements of same value in other gas | Models designed for R600a (e.g., GN60AZ series) or R404A/R290 will have different electrical characteristics and are NOT direct drop-in replacements. System conversion required. |
| Feature | GS66AZ (LBP, R134a) | Typical MBP Compressor (e.g., for refrigerator section) | Miniature DC Compressor (e.g., for portable fridge) |
|---|---|---|---|
| Primary Use | Freezing / Deep Cooling | Fresh Food Preservation | Portable, 12/24V Applications |
| Efficiency at Low Temp | High (Optimized for this duty) | Poor (will overwork and fail prematurely) | Low to Moderate |
| Typical HP | 1/5 HP to 1/4 HP | 1/6 HP to 1/5 HP | < 1/10 HP |
| System Complexity | Standard AC single-phase | Standard AC single-phase | Requires DC power/control board |
| Durability | High (Commercial Duty) | Moderate (Domestic Duty) | Low to Moderate |
Defrost Timer Module
The Universal Electronic Defrost Timer Module is a critical component for modernizing refrigerator repairs. Designed to replace failing mechanical timers and expensive control boards, this solid-state device offers unmatched reliability. Featuring a 220V input and…
| Specification | Detail / Value |
| Input Voltage | 220V – 240V AC |
| Frequency | 50 / 60 Hz |
| Maximum Current (Compressor) | 10 Amps (Inductive) |
| Maximum Current (Defrost) | 5 Amps (Resistive) |
| Defrost Interval | Fixed 6 or 8 Hours (Model Dependent) |
| Defrost Duration | Fixed 20 to 25 Minutes |
| Housing | High-Insulation Heat-Shrink Polymer |
| Operating Temperature | -10°C to +55°C |
| Feature | Mechanical Timer | Electronic Module |
| Reliability | Prone to gear failure | High (No moving parts) |
| Noise Level | Audible clicking/humming | Completely silent |
| Accuracy | Varies with motor wear | Digital precision |
| Vibration Resistance | Low (Internal pins can shift) | High (Solid-state encapsulation) |
| Size | Bulky, requires mounting bracket | Compact, fits inside wire looms |
Compressor, Matsushita, D77C18RAX5, 1/4 hp, Panasonic
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…
| 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) |
| 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 |
| 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 |
Huayi HYE69Y63 Compressor 1/5 HP R134a LBP
The Huayi HYE69Y63 is a highly efficient hermetic reciprocating compressor designed for low back pressure applications using R134a refrigerant. With a 1/5 HP rating and dual-frequency compatibility (50/60Hz), this motor is a cornerstone for domestic…
| Feature | Detailed Specification |
| Model | HYE69Y63 |
| Utilisation (mbp/hbp/lbp) | LBP (Low Back Pressure) |
| Domaine (Freezing/Cooling) | Freezing / Deep Cold Storage |
| Oil Type and Quantity | POE (Ester Oil) – Approx. 180 ml |
| Horsepower (HP) | 1/5 HP |
| Refrigerant Type | R134a |
| Power Supply | 220-240VAC / 50-60Hz / 1 Phase |
| Cooling Capacity (ASHRAE) | 168 Watts / 573 BTU/h (@ -23.3°C) |
| Motor Type | RSIR (Resistive Start – Inductive Run) |
| Displacement | 6.9 cm³ |
| Winding Material | High-Grade Copper |
| Pressure Charge | 0.8 to 1.3 Bar (Evaporating Pressure) |
| Capillary Recommendation | 0.031″ ID (Length dependent on cabinet) |
| Refrigerator Brands | Haier, Whirlpool, Midea, Hisense |
| Temperature Function | -35°C to -10°C (-31°F to 14°F) |
| Cooling System | Static (Natural Convection) |
| Commercial Class | Domestic / Residential |
| Amperage (FLA) | 1.1 A to 1.3 A |
| LRA (Locked Rotor Amps) | 12.0 A |
| Type of Relay | PTC (Positive Temperature Coefficient) |
| Capacitor Requirement | Generally none (Standard RSIR configuration) |
| Metric | Huayi HYE69Y63 (R134a) | Standard 1/5 HP (R600a Equivalent) |
| Displacement | 6.9 cm³ | 10.2 cm³ |
| Operating Pressure | Positive (Standard) | Low / Near-Vacuum |
| Efficiency (COP) | 1.30 W/W | 1.50 W/W |
| Gas Charge Weight | Moderate (~120g) | Low (~50g) |
Huayi HYB60MGU Compressor 1/7 HP R600a LBP
The Huayi HYB60MGU is a high-efficiency hermetic reciprocating compressor specifically engineered for Low Back Pressure (LBP) applications. Operating on the eco-friendly R600a refrigerant, this 1/7 HP unit is a primary component in modern household refrigerators.…
| Feature | Specification |
| Model | HYB60MGU |
| Utilisation (mbp/hbp/lbp) | LBP (Low Back Pressure) |
| Domaine (Freezing/Cooling) | Domestic Refrigerators / Freezers |
| Oil Type and Quantity | Mineral Oil / 180 ml |
| Horsepower (HP) | 1/7 HP |
| Refrigerant Type | R600a (Isobutane) |
| Power Supply | 220-240VAC / 50Hz / 1 Phase |
| Cooling Capacity BTU | 375 BTU/h (approx. 110 Watts) |
| Motor Type | RSIR (Resistive Start – Inductive Run) |
| Displacement | 6.0 cm³ |
| Winding Material | High-Grade Copper |
| Pression Charge | 0.5 to 1.2 Bar (Standard LBP operation) |
| Capillary Recommendation | 0.026″ – 0.028″ ID (Varies by cabinet) |
| Application Range | -35°C to -10°C |
| Cooling System | Static (Natural convection) |
| Commercial Classification | Residential / Household |
| Amperage (Running) | 0.55 A – 0.7 A |
| LRA (Locked Rotor Amperage) | 4.8 A |
| Type of Relay | PTC (Positive Temperature Coefficient) |
| Capacitor Requirement | None (RSIR Configuration) |
| Metric | Huayi HYB60MGU (R600a) | Standard 1/7 HP (R134a) |
| Operating Pressure | Low / Vacuum | High Positive |
| Displacement | 6.0 cm³ | 4.5 cm³ |
| Energy Consumption | Low (High COP) | Moderate |
| Environment | GWP < 3 (Eco-friendly) | GWP 1430 (Global Warming) |
GMCC PE75H1C Compressor 1/4 HP R134a LBP
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…
| 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) |
| 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 |
TEE NTU 170 MT Compressor 1/4 HP R600a
The TEE NTU 170 MT is a high-efficiency hermetic reciprocating compressor designed for low back pressure applications using R600a refrigerant. Known for its reliability in household refrigeration, this unit operates at 220-240V 50Hz. This article…
| Feature | Specification |
| Model | NTU 170 MT |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Freezing / Deep Cooling |
| Oil Type and Quantity | Mineral Oil (approx. 180 ml) |
| Horsepower (HP) | 1/4 HP |
| Refrigerant Type | R600a (Isobutane) |
| Power Supply | 220-240VAC / 50Hz / 1Ph |
| Cooling Capacity BTU | ~700 BTU/h (at -23.3°C Evaporating Temp) |
| Motor Type | RSIR |
| Displacement | 11.20 cc |
| Winding Material | High-Grade Copper |
| Pression Charge | 0.5 to 1.2 Bar (Low side depending on load) |
| Capillary Recommendation | 0.031″ ID x 3 meters (approximate) |
| Temperature Function | -35°C to -10°C |
| Cooling System | Static (No fan required for compressor) |
| Commercial Class | Domestic / Light Commercial |
| Amperage (FLA) | 0.8 A – 1.0 A |
| LRA (Locked Rotor) | 14 A |
| Relay Type | PTC Starter |
| Capacitor | Not required (RSIR), Optional Run Cap for CSIR conversion |
| Metric | TEE NTU 170 MT (R600a) | Equivalent R134a Model (e.g., GL90AA) |
| Efficiency (COP) | 1.45 – 1.55 W/W | 1.20 – 1.35 W/W |
| Operating Pressure | Low / Vacuum | High |
| Eco-Impact | GWP 3 (Low) | GWP 1430 (High) |
| Noise Level | Very Low | Moderate |
Compressor, Konor, GPY16AF, 1/2 HP, R134a, LBP
The Konor GPY16AF is a robust hermetic reciprocating compressor engineered for low back pressure applications using R134a refrigerant. With a displacement of 16.2 cm³, this 1/2 HP unit is a staple in commercial freezers and…
| Feature | Specification |
| Model | GPY16AF |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Freezing / Deep Cold Storage |
| Oil Type and Quantity | POE Oil / 350 ml |
| Horsepower (HP) | 1/2 HP |
| Refrigerant Type | R134a |
| Power Supply | 220-240V / 50Hz / 1 Phase |
| Cooling Capacity BTU | Approximately 1540 BTU/h (at -23.3°C ASHRAE) |
| Motor Type | CSIR (Capacitor Start – Induction Run) |
| Displacement | 16.2 cm³ |
| Winding Material | High-Grade Copper |
| Pressure Charge | Suction: 0.5 – 5 PSI (Normal LBP range) |
| Capillary Recommendation | 0.042″ x 10ft (Variable per load) |
| Application Units | Large Chest Freezers, Vertical Freezers |
| Temperature Function | -35°C to -15°C |
| Fan Requirement | Static or Forced Air (Fan recommended for high ambient) |
| Commercial Use | Yes, Light Commercial / Domestic |
| Amperage (FLA) | 2.5 A – 2.8 A |
| LRA (Locked Rotor Amps) | 17 A |
| Type of Relay | Potential or Electromagnetic Relay |
| Capacitor Requirement | Starting Capacitor (approx. 60-80 µF) |
| Brand | Model | HP | Displacement |
| Embraco | FFI12HBX | 1/2 HP | 11.14 cm³ |
| Danfoss/Secop | SC15G | 1/2 HP | 15.28 cm³ |
| Tecumseh | AE2415Y | 1/2 HP | 12.50 cm³ |
| Kulthorn | AE7440Y | 1/2 HP | 14.50 cm³ |
| Huayi | HYE15YG | 1/2 HP | 15.00 cm³ |
| Brand | Model | Gas Type | Note |
| Embraco | NEK2150GK | R404a | Requires TXV adjustment |
| Secop | SC18CL | R404a | High cooling capacity |
| Jiaxipera | VNX1116Y | R600a | High efficiency / Low noise |
| Nidec | GPY12RAA | R600a | Eco-friendly alternative |
| Danfoss | NL11MF | R134a/R404a | Multi-refrigerant capable |
Excellent Compressor GS91AZ 1/3 HP R134a 9.1cc
The Excellent Compressor GS91AZ has established itself as a robust solution for engineers and technicians looking for a durable replacement in various cooling appliances. Designed specifically for Low Back Pressure (LBP) applications, this reciprocating unit…
| Parameter | Technical Specification |
| Model | GS91AZ |
| Utilization (LBP/MBP/HBP) | LBP (Low Back Pressure) |
| Primary Domain | Freezing and Deep Cooling |
| Oil Type and Quantity | POE (Polyolester) / 280 ml – 300 ml |
| Horsepower (HP) | 1/3 HP |
| Refrigerant Type | R134a |
| Power Supply | 220V – 240V / 50Hz |
| Cooling Capacity (BTU/h) | Approx. 780 – 820 BTU/h (at ASHRAE LBP) |
| Motor Type | RSIR (Resistance Start – Induction Run) |
| Displacement | 9.1 cc |
| Winding Material | 100% High-Conductivity Copper |
| Pressure Charge | Suction: 0.5 to 1.5 bar (Application Dependent) |
| Capillary Tube Size | 0.036″ to 0.042″ (Length varies by appliance) |
| Compatible Appliances | Large 2-door Fridges, Chest Freezers, Water Coolers |
| Function Temperature | -35°C to -10°C |
| Cooling Method | Static or Fan Assisted (depending on housing) |
| Market Segment | Professional / Light Commercial |
| Operational Amperage | 1.1 A to 1.4 A |
| LRA (Locked Rotor Amps) | 14.5 A to 16 A |
| Starting Relay Type | PTC Relay or Current Relay |
| Capacitor Requirement | Usually none (RSIR), optional start cap for high torque |
| Model | Displacement | Refrigerant | COP | Typical HP |
| Excellent GS91AZ | 9.1 cc | R134a | 1.25 | 1/3 HP |
| Secop GL90AA | 9.09 cc | R134a | 1.32 | 1/4 HP+ |
| Embraco FF8.5HBK | 7.95 cc | R134a | 1.28 | 1/4 HP |
| ZMC GM90AZ | 9.0 cc | R134a | 1.20 | 1/3 HP |
L55AV and QD59H Refrigerator Compressor
The L55AV and QD59H are cornerstone compressors in the domestic refrigeration industry, both rated at 1/6 HP. While the L55AV traditionally operates with R12, the QD59H is the modern R134a standard. This article provides deep…
| Component | Common Materials (L55AV & QD59H) |
| Outer Shell | Coated Carbon Steel |
| Motor Windings | Pure Copper (Rarely Aluminum) |
| Piston & Cylinder | Cast Iron |
| Valves | Stainless Steel / Spring Steel |
| Refrigerant Gas | R12 (L55AV) / R134a (QD59H) |
| Insulation | Mineral/Synthetic Oil and Paper/Plastic motor insulators |
| Characteristic | L55AV Model | QD59H Model |
| Horsepower (HP) | 1/6 HP | 1/6 HP |
| Displacement | 5.44 cm³ | 5.9 cm³ |
| Refrigerant Type | R12 / R406a | R134a |
| Cooling Capacity | 130W – 145W | 160W – 165W |
| Voltage Range | 220-240V / 50Hz | 220-240V / 50Hz |
| Motor Type | RSIR (Relay Start) | RSIR / RSCR |
| Evaporating Temp | -35°C to -10°C | -35°C to -15°C |
| Oil Type | Mineral | POE / Synthetic |
| Model | HP Rating | Gas Type | Capacity (W) | Efficiency (COP) |
| L55AV | 1/6 | R12 | 145 | 1.15 |
| QD59H | 1/6 | R134a | 165 | 1.22 |
| GL60AA | 1/6 | R134a | 155 | 1.20 |
| FN66Q | 1/6 | R12 | 140 | 1.10 |