ECOLINE TANDEM P - 44EESP-12(P)

Bitzer ecoline tandem P 44EESP-12(P)

ECOLINE TANDEM P - 44EESP-12(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 45,4 m3/h 54,8 m3/h 4+4 x 46 mm x 39,3 mm 180 kg 19 / 32 bar 35 mm - 1 3/8'' 2x16 mm - 5/8'' SHC226E (Standard)
IP 1604.6 CFH 1936.6 CFH 4+4 1.81 inch x 1.55 inch 397 lb 275 / 464 psi 35 mm - 1 3/8'' 2x16 mm - 5/8'' SHC226E (Standard)

Extent of delivery (Standard)

Type Motor protection Enclosure class Vibration dampers Oil charge
SI SE-B2 IP66 Standard 4,50 dm³
IP SE-B2 IP66 Standard 158.4 fl oz

Available Options

Type Discharge gas temperature sensor Start unloading Capacity control Capacity Control - infinite Additional fan Crankcase heater
SI Option Option 100-75-50-25% (Option) 100-10% (Option) Option 2 x 0..120 W PTC (Option)
IP Option Option 100-75-50-25% (Option) 100-10% (Option) Option 2 x 0..120 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 2x13.6 A 2x62.2 A
IP 1 440-480V PW-3-60Hz 2x13.6 A 2x62.2 A

Sound measurement

Type Sound power level Sound pressure level @ 1m
(+5°C / 50°C) (-10°C / 45°C) -35°C / 40°C (+5°C / 50°C) (-10°C / 45°C) -35°C / 40°C
SI 71,2dB(A) @ 50Hz 74,6dB(A) @ 50Hz 75,5dB(A) @ 50Hz 63,2dB(A) @ 50Hz 66,6dB(A) @ 50Hz 67,5dB(A) @ 50Hz
IP 73,7dB(A) @ 60Hz 76,1dB(A) @ 60Hz 78dB(A) @ 60Hz 65,7dB(A) @ 60Hz 68,1dB(A) @ 60Hz 70dB(A) @ 60Hz