The Donper S118CY1 compressor is a cornerstone of modern domestic refrigeration, engineered for high efficiency in Low Back Pressure (LBP) environments. Utilizing R600a refrigerant, this 1/4 HP unit provides reliable cooling for large household refrigerators…
| Feature | Specification |
| Model | S118CY1 |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Freezing / Deep Cooling |
| Oil Type and Quantity | Mineral or POE (Consult label), ~180ml – 220ml |
| Horsepower (HP) | 1/4 HP |
| Refrigerant Type | R600a (Isobutane) |
| Power Supply | 220-240V ~ 50Hz, 1 Phase |
| Cooling Capacity BTU | Approx. 715 BTU/h (at -23.3°C) |
| Motor Type | RSIR (Resistance Start – Induction Run) |
| Displacement | 11.8 cm³ |
| Winding Material | High-Grade Copper |
| Pressure Charge | Low side (suction) depends on ambient |
| Capillary Tube | 0.031″ to 0.036″ (Internal Diameter) |
| Compatible Appliances | Large domestic refrigerators, display freezers |
| Temperature Function | -35°C to -15°C |
| Cooling Method | Static or Fan cooling (application dependent) |
| Commercial/Residential | Residential / Light Commercial |
| Amperage (RLA) | 0.9 A – 1.2 A (running) |
| LRA (Locked Rotor Amps) | 6.5 A – 7.5 A |
| Type of Relay | PTC Start Relay |
| Capacitor | Often not required (RSIR), optional Run Capacitor |
The White Point WPMR91S is a high-efficiency 91-liter refrigerator utilizing a specialized 13-gram R600a refrigerant charge. Operating at 0.50A, this Turkish-made unit is designed for optimal LBP performance. This guide provides comprehensive technical specifications, compressor…
| Feature | Details |
| Model | White Point WPMR91S |
| Utilization | LBP (Low Back Pressure) |
| Domaine | Cooling (Mini-Bar / Domestic Refrigerator) |
| Oil Type and Quantity | Mineral or Ester Oil (approx. 160ml) |
| Horsepower (HP) | 1/12 HP |
| Refrigerant Type | R600a (Isobutane) |
| Power Supply | 220-240V / 50Hz |
| Cooling Capacity BTU | Approx. 310 BTU/h |
| Motor Type | RSIR (Resistance Start – Induction Run) |
| Displacement | 4.0 cm³ to 4.5 cm³ |
| Winding Material | Copper |
| Pression Charge | 0.5 to 1 PSI (Low side running) |
| Capillary | 0.026 ID |
| Compatible Models | Compact refrigerators, Under-counter coolers |
| Temperature Function | +5°C to -18°C (Internal) |
| With Fan or No | No (Static Cooling) |
| Commercial or No | No (Domestic) |
| Amperage in Function | 0.50 A |
| LRA | 2.6 A |
| Type of Relay | PTC Relay |
| Capacitor | No (Standard RSIR) |
| Technical Parameter | WPMR91S (R600a) | Equivalent R134a Unit |
| Mass Charge | 13g | ~45g – 60g |
| Operating Pressure | Below Atmospheric (Vacuum) | Positive Pressure |
| COP (Efficiency) | Higher | Lower |
| Environmental Impact | GWP 3 (Eco-Friendly) | GWP 1430 (High Impact) |
The Evvoli EVCIS-24K-MD is a robust 2.5 HP rotary compressor designed for 24,000 BTU split-type air conditioners. Running on R410A refrigerant with a 20.0A rated current, it offers high-efficiency cooling and heating (26,000 BTU). This…
| Attribute | Specification Details |
| Model | EVCIS-24K-MD |
| Utilisation (mbp/hbp/lbp) | HBP (High Back Pressure) |
| Domaine (Freezing/Cooling) | Air Conditioning (Cooling & Heating) |
| Oil Type and quantity | POE Oil (Polyolester) / Approx. 650ml – 750ml |
| Horsepower (HP) | 2.5 HP |
| Refrigerant Type | R410A |
| Power Supply | 220-240V ~ 50Hz, 1Ph |
| Cooling Capacity BTU | 24,000 Btu/h |
| Heating Capacity BTU | 26,000 Btu/h |
| Motor Type | Rotary (CSR/PSC) |
| Displacement | 22.0 to 25.0 cm³ |
| Winding Material | High-Grade Copper |
| Pression Charge | Discharge: 4.2MPa / Suction: 1.5MPa |
| Capillary | 0.070″ – 0.080″ ID (Typical for 2.0 Ton) |
| Modele Refrigerator Compatibility | Not for refrigerators; designed for Split AC Units |
| Temperature function | T1 Climate (-7°C to +43°C) |
| With fan or no | Yes (External Condenser Fan required) |
| Commercial or no | Light Commercial / Residential |
| Amperage in function | 20.0 A (Maximum Load) |
| LRA (Locked Rotor Amps) | 62 A – 70 A |
| Type of relay | Power Contactor / Start Relay |
| Capacitor or no and valeur | Run Capacitor: 55µF – 60µF / 450V |
The ZMC EGM66AF is a high-reliability 1/6 HP compressor designed for Low Back Pressure (LBP) applications in domestic refrigerators ranging from 10 to 12 feet. Utilizing R134a refrigerant and a 6.66cc displacement, this unit features…
| Feature | Specification |
| Model | ZMC EGM66AF |
| Utilization | LBP (Low Back Pressure) |
| Domaine | Freezing / Cooling (Domestic) |
| Oil Type and Quantity | POE / Ester Oil – ~180ml |
| Horsepower (HP) | 1/6 HP |
| Refrigerant Type | R134a |
| Power Supply | 220-240V ~ 50Hz |
| Cooling Capacity BTU | ~512 BTU/h (at -23.3°C) |
| Motor Type | RSIR (Resistive Start – Induction Run) |
| Displacement | 6.66 cm³ |
| Winding Material | High-Grade Copper |
| Pression Charge | Low side: 0 – 10 PSI (typical) |
| Capillary | 0.031″ ID |
| Model Fridge | 10 – 12 Feet (Kiriazi, Olympic, etc.) |
| Temperature Function | -35°C to -10°C |
| With Fan or No | No (Static Cooling) |
| Commercial or No | No (Residential/Domestic) |
| Amperage in Function | 0.8A to 1.1A |
| LRA | 9.0A |
| Type of Relay | PTC (Positive Temperature Coefficient) |
| Capacitor | Generally not required (None) |
| Feature | ZMC EGM66AF | Danfoss TLS6F | Embraco EMY65HLC |
| Displacement | 6.66 cc | 5.70 cc | 5.96 cc |
| Cooling Power | 150 W | 145 W | 158 W |
| Winding Type | Copper | Mixed/Copper | Copper |
Selecting the right electrical components is the heartbeat of refrigeration maintenance. When a compressor fails to start or constantly trips, the culprit is often a mismatched Current Relay or a fatigued Thermal Overload Protector. Ensuring…
| Model | Compressor Power (HP) | Terminal Pin | Applied Current (A) |
| 117U 2010 | 1/3 HP | 5 | 4.5 A |
| 117U 2100 | 1/4 HP | 6 | 3.6 A |
| 117U 2104 | 1/5 HP | 4 | 6.5 A |
| 117U 2050 | 1/2 HP | 1 | 1.4 A |
| Compressor Power (HP) | Max Connect Current (A) | Release Current (A) |
| 1/2 HP | 12.5 A | 5.0 A |
| 1/3 HP | 9.0 A | 4.75 A |
| 1/4 HP | 8.0 A | 4.0 A |
| 1/5 HP | 7.5 A | 3.5 A |
| 1/6 HP | 7.0 A | 3.0 A |
The MAQ QD168H is a high-performance 1/4 HP hermetic compressor designed for R134a refrigerant systems. Ideal for domestic refrigerators and freezers, it offers a cooling capacity of approximately 195W. This article provides a deep dive…
| Model | MAQ QD168H |
| Utilization | LBP (Low Back Pressure) |
| Domaine | Freezing / Cooling |
| Oil Type and Quantity | POE / Mineral – 220ml |
| Horsepower (HP) | 1/4 HP |
| Refrigerant Type | R134a |
| Power Supply | 220-240V / 50Hz |
| Cooling Capacity | 665 BTU/h (Approx. 195W) |
| Motor Type | RSIR (Remote Start Induction Run) |
| Displacement | 6.8 cm³ |
| Winding Material | Copper |
| Pression Charge (Suction) | 0.5 to 1.2 Bar |
| Capillary Recommendation | 0.031″ to 0.036″ |
| Compatible Appliance | Double door fridge (1.5m) / Chest Freezer |
| Temperature Function | -35°C to -15°C |
| Cooling Method | Static (Natural Convection) |
| Commercial Use | Light Commercial / Domestic |
| Amperage (RLA) | 1.1A – 1.3A |
| LRA (Locked Rotor Amps) | 7.5A |
| Type of Relay | PTC Relay |
| Capacitor | N/A (Optional 4-5µF for RSCR conversion) |
| Brand/Model | Refrigerant | HP | Cooling Power (W) | COP (W/W) |
| MAQ QD168H | R134a | 1/4 HP | 195 W | 1.25 |
| Embraco FFI 7.5HAK | R134a | 1/4 HP | 202 W | 1.29 |
| Huayi QD75H | R134a | 1/4 HP | 190 W | 1.22 |
| Samsung SD162 | R134a | 1/5+ HP | 175 W | 1.20 |
The Matsushita QA77C17GAX5 is a workhorse in the refrigeration world. This 1/4 HP R134a compressor is a go-to for many household fridges and freezers. In this guide, we break down the technical specs, electrical wiring,…
| Data Point | Technical Specification |
| Model | QA77C17GAX5 |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Freezing / Cooling |
| Oil Type and Quantity | POE (Polyolester) / 230ml |
| Horsepower (HP) | 1/4 HP |
| Refrigerant Type | R134a |
| Power Supply | 220V – 240V / 50Hz / 1 Phase |
| Cooling Capacity | 614 BTU/h (180 Watts) |
| Motor Type | RSIR |
| Displacement | 7.7 cm³ |
| Winding Material | Copper |
| Typical Pressure | Suction: ~1 PSI / Discharge: ~140 PSI |
| Capillary Tube | 0.031″ Internal Diameter |
| Common Usage | Household Fridges, Chest Freezers |
| Temp Range | -35°C to -10°C |
| Fan Requirement | Static Cooling (Natural Convection) |
| Type | Domestic / Light Commercial |
| Amperage | 1.1A to 1.3A |
| LRA (Locked Rotor) | 14.5 Amps |
| Relay Type | PTC |
| Capacitor | None (Standard configuration) |
| Manufacturer | Competitor Model | Refrigerant | Capacity (Watts) |
| Matsushita | QA77C17GAX5 | R134a | 180 W |
| Embraco | FFI7.5HAK | R134a | 193 W |
| Danfoss/Secop | TLS7FT | R134a | 175 W |
| LG | MA72LCEP | R134a | 185 W |
The LG FMA102NAMA is a sophisticated inverter compressor engineered for modern energy-efficient refrigeration systems. Utilizing R600a refrigerant and a variable frequency BLDC motor, this unit provides precise cooling for Low Back Pressure (LBP) applications. Manufactured…
| Feature | Technical Specification |
| Model | FMA102NAMA |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Freezing / Cooling |
| Oil Type and Quantity | BR1MOIL / Approx. 200cc |
| Horsepower (HP) | ~1/4 HP (Variable Capacity) |
| Refrigerant Type | R600a (Isobutane) |
| Power Supply | Inverter 0-220V 60Hz |
| Cooling Capacity (BTU/h) | ~350 – 1000 BTU/h (Modulating) |
| Motor Type | BLDC Inverter (LG Drive Only) |
| Displacement | 10.2 cc |
| Winding Material | High-Efficiency Copper |
| Pressure Charge | Low-Side Suction |
| Appliance Compatibility | LG Linear/Inverter Style Refrigerators |
| Temperature Function | -35°C to -10°C |
| With Fan or No | Static or Forced Air (Application specific) |
| Commercial or No | Residential / Light Commercial |
| Amperage (Running) | 0.9A to 1.7A (Variable) |
| Type of Relay | Electronic Inverter Controller |
| Capacitor | Integrated into Inverter Module |
| Feature | Standard Induction (RSIR) | LG FMA102NAMA Inverter |
| Starting Current | 6x – 8x Running Amps | Controlled Ramp-up |
| Voltage Range | Narrow (e.g., 198-242V) | Broad (0-220V Variable) |
| Efficiency | Moderate | Very High (Energy Star Grade) |
| Wear & Tear | High (On/Off Cycles) | Low (Constant Operation) |
The Samsung MSV4A1A-L1B is a high-efficiency inverter compressor specifically engineered for R600a residential refrigeration systems. Operating between 54Hz and 216Hz, this 1/4 HP BLDC unit provides variable cooling capacity for premium side-by-side refrigerators. This professional…
| Feature | Technical Data |
| Model | MSV4A1A-L1B (TB3) |
| Utilisation | LBP (Low Back Pressure) |
| Domaine | Freezing / Cooling |
| Oil Type and Quantity | POE (Polyolester) / ~220cc |
| Horsepower (HP) | 1/5 to 1/4 HP (Variable Capacity) |
| Refrigerant Type | R600a (Isobutane) |
| Power Supply | 160-260V ~ 54-216Hz |
| Cooling Capacity (BTU/h) | ~300 – 950 BTU/h (Modulating) |
| Motor Type | BLDC (Brushless DC Inverter) |
| Displacement | 10.0 cc |
| Winding Material | High-Grade Copper |
| Temperature Function | -35°C to -10°C |
| With Fan or No | Forced air cooling recommended |
| Amperage (Running) | 0.8A – 1.6A (Load dependent) |
| Type of Relay | Electronic Inverter Board |
| Capacitor | Built into the controller |
| Feature | Conventional Compressor | Samsung MSV4A1A-L1B |
| Drive | AC Induction | BLDC (Variable Frequency) |
| Start-up | Hard Start (High Amps) | Soft Start (Low Amps) |
| Refrigerant | Often R134a/R12 | R600a (Isobutane) |
| Noise | 42-45 dB | 35-38 dB |
The Embraco FMXY9C is a high-efficiency inverter compressor designed for modern R600a refrigeration systems. Operating at variable speeds between 43Hz and 134Hz, this unit offers superior energy savings. This guide provides technical specifications, diagnostic protocols…
| Feature | Technical Specification |
| Model | FMXY9C |
| Utilisation (MBP/HBP/LBP) | LBP (Low Back Pressure) |
| Domaine (Freezing/Cooling) | Domestic Freezing & Cooling |
| Oil Type and Quantity | Alkylbenzene (AB) / 180 ml |
| Horsepower (HP) | 1/5 HP (Equivalent at 3000 RPM) |
| Refrigerant Type | R600a (Isobutane) |
| Power Supply | 230V (3-Phase output from Inverter) |
| Frequency Range | 43 Hz to 134 Hz |
| Cooling Capacity (BTU/h) | 280 – 850 BTU/h (Variable) |
| Motor Type | BPM (Brushless Permanent Magnet) |
| Displacement | 8.74 cm³ |
| Winding Material | Copper |
| Pressure Charge (Low Side) | 0.5 to 1.5 psi (Running) |
| Capillary Tube Size | 0.026″ or 0.031″ (Application dependent) |
| Refrigerator Compatibility | High-end Samsung, LG, Whirlpool, Bosch |
| Temperature Function | -35°C to -10°C (-31°F to 14°F) |
| Fan Requirement | No (Static) or Yes (Enclosed cabinet) |
| Commercial Application | No (Domestic Only) |
| Amperage (Running) | 0.4A to 1.5A (Varies by speed) |
| LRA (Locked Rotor Amps) | N/A (Electronically limited) |
| Relay Type | None (Direct Inverter Control) |
| Capacitor | None (Handled by Inverter Board) |
| Feature | FMXY9C (Inverter) | EMY70CLP (Fixed Speed) |
| Energy Efficiency | Up to 40% Higher | Baseline |
| Temperature Swing | ±0.5°C | ±2.0°C |
| Noise Levels | 32-34 dBA | 38-42 dBA |
| Start-up Stress | Soft-start (Low stress) | High Torque (High stress) |
| Repair Complexity | High (Requires Electronics expertise) | Low (Mechanical/Relay focus) |
