operates on a standard single-phase power supply and features a robust reciprocating design. Refrigerant: R290 (Propane) Voltage/Frequency: 220–240V ~ 50Hz Cooling Capacity: 325W (ASHRAE condition) Horsepower: 3/8+ HP Displacement: 6.8 cm³
You can find more details or request a quote for this model through authorized distributors like or a list of compatible start relays for this specific model? Donper L68WU1 R290 Refrigeration Compressor - IndiaMART
Complete Technical Overview of the Donper L68WU1 Compressor The is a high-efficiency hermetic reciprocating refrigeration compressor engineered for light commercial and heavy-duty domestic refrigeration systems. Manufactured by Huangshi Donper Compressor Co., Ltd. , a leading global supplier of cooling solutions, this specific model is widely relied upon for its environmental compliance, stable performance profile, and rugged physical build.
Static or Fan Cooled (depending on the specific appliance BTU demands)
The ambient operating temperature for a compressor like the L68WU1 should range between +2°C and +45°C. l68wu1 compressor pdf
Below is a direct comparison extracted from standard Donper technical sheets: Compressor Model Refrigerant Targeted Cabinet Capacity Cooling Method Motor Type & Torque Running Capacitor 100 to 200 Liters Fan Cooling RSCR / LST L68WU1 R290 300 to 350 Liters Fan Cooling RSCR / LST 5 μF L76WU1 400 to 500 Liters Fan Cooling RSCR / LST
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Often a 5µF configuration to optimize power factor correction and motor efficiency during runtime. R290 Servicing and Safety Protocols
The L68WU1 relies on R290 (propane), a pure hydrocarbon refrigerant that has largely replaced traditional fluorocarbons like R134a or R404A in small commercial display units and freezers. Understanding why the L68WU1 is engineered around R290 highlights its thermodynamic performance: Donper L68WU1 R290 Refrigeration Compressor - IndiaMART operates on a standard single-phase power supply and
For L76WU1 and related models, refer to the technical sheets on Supplier Technical Insights
When evaluating the L68WU1 for replacement or system design, understanding its thermodynamic performance is critical. The figures below reflect standard ASHRAE rating conditions for low back pressure configurations. Performance Metrics Rating / Value Testing Condition ~160 to 185 Watts (540 - 630 BTU/hr) ASHRAE (Evap. Temp: -23.3°C / -10°F) Displacement Nominal mechanical volume Coefficient of Performance (COP) 1.20 - 1.40 W/W High-efficiency rating tier Oil Charge 160 - 200 ml Mineral or POE (Polyolester) based on refrigerant 3. Electrical Data and Wiring Diagram
This model is designed for Fan Cooling , meaning it requires active airflow across the compressor body to maintain optimal operating temperatures and prevent overheating during long duty cycles. Maintenance & Diagnostic Tips
Without the PDF, many users mistakenly apply the wrong capacitor. A typical L68WU1 unit in medium temp application might use a at 370VAC, but this varies by version. Manufactured by Huangshi Donper Compressor Co
The following technical data is compiled from manufacturer and supplier datasheets: Specification Compressor Type Reciprocating Refrigerant R290 (Propane) Voltage / Frequency 220–240V ~ 50Hz Application Low Back Pressure (LBP) Cooling Method Fan Cooling Displacement Approximately 6.8 cm³ Cooling Capacity ~325W to 330W (at -23.3°C) Motor Type RSCR (Resistance Start Capacitance Run) Start Torque Low Starting Torque (LST) Technical Analysis Refrigerant Efficiency
Check system pressures with a manifold gauge set. If pressures are equalized on both high and low sides while running, the internal reed valves have likely failed. Issue 3: Winding Resistance Test Failure Set your multimeter to Ohms ( Ωcap omega ) and measure between the pins: Resistance + Resistance = Resistance If any reading shows (Short circuit) or ∞infinity
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