ECOLINE TANDEM P - 44NESP-28(P)
Tandem compressors are the simplest way of connecting two compressors in parallel. Turning on and shutting off one compressor allows for a particularly effective graduation of output. The 4- and 6-cylinder models can also be equipped with capacity control systems (cylinder cutoff), allowing them to run with up to four or six levels of output.
| Displacement | No. of cylinder x bore x stroke | Weight | Max. pressure (LP/HP) | Connection suction line | Connection discharge line | Oil type R290/R1270 | ||
|---|---|---|---|---|---|---|---|---|
| 1450 RPM 50Hz | 1750 RPM 60Hz | |||||||
| SI | 112,5 m3/h | 135,8 m3/h | 4+4 x 70 mm x 42 mm | 296 kg | 19 / 32 bar | 54 mm - 2 1/8'' | 2x28 mm - 1 1/8'' | SHC226E (Standard) |
| IP | 3973 CFH | 4795 CFH | 4+4 x 2.76 inch x 1.65 inch | 565 lb | 275 / 464 psi | 54 mm - 2 1/8'' | 2x28 mm - 1 1/8'' | SHC226E (Standard) |
Extent of delivery (Standard)
| Type | Motor protection | Enclosure class | Vibration dampers | Oil charge |
|---|---|---|---|---|
| SI | SE-B2 | IP66 | Standard | 6,10 dm³ |
| IP | SE-B2 | IP66 | Standard | 215 fl oz |
Available Options
| Type | Discharge gas temperature sensor | Start unloading | Capacity control | Capacity Control - infinite | Additional fan | Refrigerant Injection (RI) | Oil service valve | Crankcase heater |
|---|---|---|---|---|---|---|---|---|
| SI | Option | Option | 100-75-50-25% (Option) | 100-10% (Option) | Option | Option | Option | 2 x 0..140 W PTC (Option) |
| IP | Option | Option | 100-75-50-25% (Option) | 100-10% (Option) | Option | Option | Option | 2 x 0..140 W PTC (Option) |
Motor data
| Type | Motor version | Motor voltage (more on request) | Max operating current | Starting current (Rotor locked) |
|---|---|---|---|---|
| SI | 1 | 380-420V PW-3-50Hz | 2x26.6 A | 2x69.0 A Y / 2x113.0 A YY |
| IP | 1 | 440-480V PW-3-60Hz | 2x26.6 A | 2x69.0 A Y / 2x113.0 A YY |
Sound measurement
| Type | Sound power level | Sound pressure level @ 1m | ||
|---|---|---|---|---|
| (-10°C / 45°C) | (-35°C / 40°C) | (-10°C / 45°C) | (-35°C / 40°C) | |
| SI | 81,5 dB(A) @ 50Hz | 86,0 dB(A) @ 50Hz | 73,5 dB(A) @ 50Hz | 78,0 dB(A) @ 50Hz |
| IP | 84,0 dB(A) @ 60Hz | 88,5 dB(A) @ 60Hz | 76,0 dB(A) @ 60Hz | 80,5 dB(A) @ 60Hz |