The Danfoss SM-185S4VC is a hermetic scroll compressor
1. Compressor Type and Technology:
Scroll Compressor: The SM-185S4VC utilizes scroll technology, which involves two intermeshing spiral-shaped scrolls one stationary and one orbiting. This design offers several advantages:
High Efficiency: Continuous compression process minimizes re-expansion losses.
Quiet Operation: Smooth, continuous motion results in lower noise and vibration compared to reciprocating compressors.
High Reliability: Fewer moving parts than other compressor types lead to enhanced durability and longer lifespan.
High Resistance to Liquid Slugging: The gas intake design is engineered to better handle instances of liquid refrigerant entering the compressor.
2. Refrigerant Compatibility:
R22: The SM-185S4VC is designed to operate with R22 refrigerant. It can also be used with R417A-160SZ.
Mineral Oil (160P): It is charged with mineral oil, specifically 160P, which is compatible with R22.
3. Performance Specifications (Nominal at 60Hz, ARI conditions):
Nominal Capacity: 15 Tons (TR) / 185,400 Btu/h / 54,300 W
Power Input: 16.22 kW
COP (Coefficient of Performance): 3.35 W/W
EER (Energy Efficiency Ratio): 11.4 Btu/h/W
Swept Volume: 249.9 cm³/rev
Displacement: 52.48 m³/h (at 3500 rpm) / 43.5 m³/h (at 2900 rpm)
Nominal Voltage: 460V, 3 Phase, 60Hz (also available for 380-400V, 3 Phase, 50Hz)
Voltage Range: 414-506 V @ 60Hz (340-440 V @ 50Hz)
Maximum Operating Current (MMT): 35 A
Locked Rotor Amps (LRA): 175 A
4. Electrical Characteristics:
Motor Protection: Internal thermostat, with an external overload protector needed for comprehensive protection.
Winding Resistance (between phases): +/- 7% at 25ºC: 0.77 �©
5. Physical Characteristics & Dimensions:
Net Weight: 100 kg (approx.)
Oil Charge: 6.2 liters (Mineral - 160P)
Dimensions:
Diameter (D): 317 mm
Height (H): 678 mm
Connections:
Suction Connection: 2-1/4" Rotolock / 1-5/8" ODF (with supplied sleeve: 1-3/8" ODF)
Discharge Connection: 1-3/4" Rotolock / 1-1/8" ODF (with supplied sleeve: 7/8" ODF)
Oil Sight Glass: Threaded
Oil Equalization Connection: 3/8'' flare SAE
Oil Drain Connection: 1/4'' flare
LP Gauge Port: Schrader
Terminal Box: IP54 rated (with cable gland)
Mounting: Comes with a mounting kit including grommets, bolts, nuts, sleeves, and washers.
