Danfoss Scroll Compressor 3PH Multi Refrigerant POE Stub - SZ1854CAI

Danfoss Scroll Compressor 3PH Multi Refrigerant POE Stub

Part Number: SZ1854CAI

Danfoss Scroll Compressor 3PH Multi Refrigerant POE Stub

Part Number: SZ1854CAI

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  • Danfoss is a worldwide manufacturer of compressors and condensing units for refrigeration and HVAC applications. Danfoss have a wide range of high quality and innovative products that help your company to find the best possible energy efficient solution that respects the environment and reduces total life cycle costs. 

    Danfoss have 40 years of experience within the development of hermetic compressors which places them amongst the global leaders in the industry. Today Danfoss operate from engineering and manufacturing facilities spanning across three continents.

    This SZ185-4CAI model is supplied with a bi-metallic single pole, single throw thermostat located in the motor windings. If the motor overheats due to low refrigerant flow or improper rotation, the thermostat will open. Because the thermostat is an automatic reset device it must be wired within a lockout safety circuit with a manual reset. It is compulsory to fit an external overload protector to protect against over current & phase loss.

    The SZ range of compressors benefit from the improved design features below to achieve the highest efficiency: 

    • Gas circulation, motor cooling and oil behaviour are improved on light commercial platform models by a new patented motor cap design. 

    • Part protection and assembly reduces internal leaks and increases life durability. 

    • Improved part isolation reduces greatly acoustic levels

    • Gas intake design induces higher resistance to liquid slugging.

    • Multi-refrigerant (R134a, R404A, R407C, R507A, R513A) optimized scroll profile and charged with POE oil.

    Note: Crankcase heater is not supplied with compressor & should be purchased separately if required.


  • General Specifications
    Swept Volume249.9 cm³/rev
    Suction Line ConnectionStub Tube 1-5/8" ODF
    Discharge Line ConnectionStub Tube 1-1/8" ODF
    Weight102.16 kg
    Oil Charge6.2 L
    Oil Type160SZ P.O.E. Oil
    Electrical Specifications
    Voltage380-400V / 3 / 50Hz
    Motor Type3PH
    Max Continuous Current35 amps
    Locked Rotor Amps175
    Max Operating Amps35 amps
    Crankcase Heater 1240 volts 75 watts
    Line to Line Resistance0.77 OHMS (+/- 7% @ 25ºC)

    1. Crankcase Heaters are not supplied with compressors & should be purchased separately if required

  • ContactorMC40A240V
    Thermal OverloadMT323K40
    Electronic OverloadGMP403P40A
    Crankcase Heater7773108
  • danfoss_manuerope_scroll_b

    Units Dimensions (mm)
  • R407C
    Cond Temp (°C)Evaporating Temperature (°C)
    45Capacity (w)23829298373681544858487595406164516
    Input (w)10863109321098511019110261102811009
    Current (Amps)20.520.6120.6920.7420.7520.7520.71
    50Capacity (w)22159278583448342127458385088560850
    Input (w)12153122261228412322123331233812326
    Current (Amps)22.1222.2422.3922.3922.4112.4122.39
    55Capacity (w)257443198439198427054748056924
    Input (w)136841374713792138051381413809
    Current (Amps)24.1524.2524.3324.3524.3624.36


    11.1k Superheat, 8.3K Subcooling, 35°C Ambient

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