The Refcomp SP8L5000 / SP8L500E is a 50HP semi-hermetic reciprocating refrigeration compressor built for dependable performance in demanding cooling systems. Its eight-cylinder design, flexible capacity control and service-friendly valve arrangement make it well suited to low-temperature refrigeration applications where load conditions vary throughout the day.
The SP8L5000 features three-stage capacity control, allowing compressor output to adjust as cooling demand changes. As a low-temperature reciprocating compressor, it helps match refrigeration capacity to actual system loads, reducing unnecessary full-load operation when less cooling is required.
Both suction and discharge shut-off valves can rotate through 360°, providing greater flexibility when arranging refrigeration piping. This makes installation easier in different equipment layouts and allows installers to adapt pipe connections to the available space.
The combination of sliding and thrust bearings accommodates axial and radial loads during operation. High-precision fitting and effective lubrication help minimize friction, vibration and operating noise, reducing mechanical wear and supporting stable long-term operation.
For the specified 60 Hz motor configuration, the compressor supports partial-winding starting to help reduce starting current compared with direct-on-line starting. This lowers the initial electrical demand during startup and makes motor starting easier to coordinate with the refrigeration system's electrical supply.
| Model | SP8L5000, SP8L500E |
|---|---|
| Rated power | 50HP / 37KW |
| Exhaust volume (50/60Hz) | 186 / 224 m³/hr |
| Refrigerant Type | R22, R407C, R134a, R404A, R507 |
| Weight | 340KG |
| Oil Charge | 5L |
| Voltage | 400V/3/50Hz, 460V/3/60Hz PW |
| Starting current PW/DOL | 237 / 316A |
| Max operating current | 97A |
Q1: How do I select the right SP8L5000 for my refrigeration system?
When selecting a semi-hermetic reciprocating refrigeration compressor, consider the required cooling capacity, refrigerant, evaporating and condensing temperatures, ambient conditions and power supply. The SP8L5000 is an eight-cylinder semi-hermetic piston compressor, so its operating range should be matched to the actual refrigeration requirements.
Q2: How does the capacity control system benefit low-temperature refrigeration applications?
The three-stage adjustment allows compressor output to respond to changing cooling loads rather than operating continuously at full capacity. This provides greater flexibility when refrigeration demand fluctuates during daily operation.
Q3: What installation advantages do the rotatable shut-off valves provide?
The 360° adjustable valve arrangement allows more flexible suction and discharge piping directions. This simplifies pipe alignment and helps installers work around space limitations when integrating the compressor into an existing refrigeration system.
Q4: What should be checked before starting the compressor?
Confirm that the motor voltage, frequency and starter arrangement match the compressor's electrical specifications. For partial-winding starting, the starter wiring and motor connections should be checked carefully before commissioning to ensure correct operation.
